src/richtext/richtextbuffer.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/richtext/richtextbuffer.cpp
   3 // Purpose:     Buffer for wxRichTextCtrl
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     2005-09-30
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #if wxUSE_RICHTEXT
  20
  21 #include "wx/richtext/richtextbuffer.h"
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/dc.h"
  25     #include "wx/intl.h"
  26     #include "wx/log.h"
  27     #include "wx/dataobj.h"
  28     #include "wx/module.h"
  29 #endif
  30
  31 #include "wx/settings.h"
  32 #include "wx/filename.h"
  33 #include "wx/clipbrd.h"
  34 #include "wx/wfstream.h"
  35 #include "wx/mstream.h"
  36 #include "wx/sstream.h"
  37 #include "wx/textfile.h"
  38 #include "wx/hashmap.h"
  39 #include "wx/dynarray.h"
  40
  41 #include "wx/richtext/richtextctrl.h"
  42 #include "wx/richtext/richtextstyles.h"
  43 #include "wx/richtext/richtextimagedlg.h"
  44 #include "wx/richtext/richtextsizepage.h"
  45 #include "wx/richtext/richtextxml.h"
  46
  47 #include "wx/listimpl.cpp"
  48 #include "wx/arrimpl.cpp"
  49
  50 WX_DEFINE_LIST(wxRichTextObjectList)
  51 WX_DEFINE_LIST(wxRichTextLineList)
  52
  53 // Switch off if the platform doesn't like it for some reason
  54 #define wxRICHTEXT_USE_OPTIMIZED_DRAWING 1
  55
  56 // Use GetPartialTextExtents for platforms that support it natively
  57 #define wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS 1
  58
  59 const wxChar wxRichTextLineBreakChar = (wxChar) 29;
  60
  61 // Helper classes for floating layout
  62 struct wxRichTextFloatRectMap
  63 {
  64     wxRichTextFloatRectMap(int sY, int eY, int w, wxRichTextObject* obj)
  65     {
  66         startY = sY;
  67         endY = eY;
  68         width = w;
  69         anchor = obj;
  70     }
  71
  72     int startY, endY;
  73     int width;
  74     wxRichTextObject* anchor;
  75 };
  76
  77 WX_DEFINE_SORTED_ARRAY(wxRichTextFloatRectMap*, wxRichTextFloatRectMapArray);
  78
  79 int wxRichTextFloatRectMapCmp(wxRichTextFloatRectMap* r1, wxRichTextFloatRectMap* r2)
  80 {
  81     return r1->startY - r2->startY;
  82 }
  83
  84 class wxRichTextFloatCollector
  85 {
  86 public:
  87     wxRichTextFloatCollector(const wxRect& availableRect);
  88     ~wxRichTextFloatCollector();
  89
  90     // Collect the floating objects info in the given paragraph
  91     void CollectFloat(wxRichTextParagraph* para);
  92     void CollectFloat(wxRichTextParagraph* para, wxRichTextObject* floating);
  93
  94     // Return the last paragraph we collected
  95     wxRichTextParagraph* LastParagraph();
  96
  97     // Given the start y position and the height of the line,
  98     // find out how wide the line can be
  99     wxRect GetAvailableRect(int startY, int endY);
 100
 101     // Given a floating box, find its fit position
 102     int GetFitPosition(int direction, int start, int height) const;
 103     int GetFitPosition(const wxRichTextFloatRectMapArray& array, int start, int height) const;
 104
 105     // Find the last y position
 106     int GetLastRectBottom();
 107
 108     // Draw the floats inside a rect
 109     void Draw(wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& range, const wxRichTextSelection& selection, const wxRect& rect, int descent, int style);
 110
 111     // HitTest the floats
 112     int HitTest(wxDC& dc, wxRichTextDrawingContext& context, const wxPoint& pt, long& textPosition, wxRichTextObject** obj, int flags);
 113
 114     // Get floating object count
 115     int GetFloatingObjectCount() const { return m_left.GetCount() + m_right.GetCount(); }
 116
 117     // Get floating objects
 118     bool GetFloatingObjects(wxRichTextObjectList& objects) const;
 119
 120     // Delete a float
 121     bool DeleteFloat(wxRichTextObject* obj);
 122
 123     // Do we have this float already?
 124     bool HasFloat(wxRichTextObject* obj);
 125
 126     bool HasFloats() const { return m_left.GetCount() >0 || m_right.GetCount() > 0; }
 127
 128     static int SearchAdjacentRect(const wxRichTextFloatRectMapArray& array, int point);
 129
 130     static int GetWidthFromFloatRect(const wxRichTextFloatRectMapArray& array, int index, int startY, int endY);
 131
 132     static void FreeFloatRectMapArray(wxRichTextFloatRectMapArray& array);
 133
 134     static void DrawFloat(const wxRichTextFloatRectMapArray& array, wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& range, const wxRichTextSelection& selection, const wxRect& rect, int descent, int style);
 135
 136     static int HitTestFloat(const wxRichTextFloatRectMapArray& array, wxDC& dc, wxRichTextDrawingContext& context, const wxPoint& pt, long& textPosition, wxRichTextObject** obj, int flags);
 137
 138 private:
 139     wxRichTextFloatRectMapArray m_left;
 140     wxRichTextFloatRectMapArray m_right;
 141     //int m_width;
 142     wxRect               m_availableRect;
 143     wxRichTextParagraph* m_para;
 144 };
 145
 146 // Delete a float
 147 bool wxRichTextFloatCollector::DeleteFloat(wxRichTextObject* obj)
 148 {
 149     size_t i;
 150     for (i = 0; i < m_left.GetCount(); i++)
 151     {
 152         if (m_left[i]->anchor == obj)
 153         {
 154             m_left.RemoveAt(i);
 155             return true;
 156         }
 157     }
 158     for (i = 0; i < m_right.GetCount(); i++)
 159     {
 160         if (m_right[i]->anchor == obj)
 161         {
 162             m_right.RemoveAt(i);
 163             return true;
 164         }
 165     }
 166     return false;
 167 }
 168
 169 // Do we have this float already?
 170 bool wxRichTextFloatCollector::HasFloat(wxRichTextObject* obj)
 171 {
 172     size_t i;
 173     for (i = 0; i < m_left.GetCount(); i++)
 174     {
 175         if (m_left[i]->anchor == obj)
 176         {
 177             return true;
 178         }
 179     }
 180     for (i = 0; i < m_right.GetCount(); i++)
 181     {
 182         if (m_right[i]->anchor == obj)
 183         {
 184             return true;
 185         }
 186     }
 187     return false;
 188 }
 189
 190 // Get floating objects
 191 bool wxRichTextFloatCollector::GetFloatingObjects(wxRichTextObjectList& objects) const
 192 {
 193     size_t i;
 194     for (i = 0; i < m_left.GetCount(); i++)
 195         objects.Append(m_left[i]->anchor);
 196     for (i = 0; i < m_right.GetCount(); i++)
 197         objects.Append(m_right[i]->anchor);
 198     return true;
 199 }
 200
 201
 202 /*
 203  * Binary search helper function
 204  * The argument point is the Y coordinate, and this fuction
 205  * always return the floating rect that contain this coordinate
 206  * or under this coordinate.
 207  */
 208 int wxRichTextFloatCollector::SearchAdjacentRect(const wxRichTextFloatRectMapArray& array, int point)
 209 {
 210     int end = array.GetCount() - 1;
 211     int start = 0;
 212     int ret = 0;
 213
 214     wxASSERT(end >= 0);
 215
 216     while (true)
 217     {
 218         if (start > end)
 219         {
 220             break;
 221         }
 222
 223         int mid = (start + end) / 2;
 224         if (array[mid]->startY <= point && array[mid]->endY >= point)
 225             return mid;
 226         else if (array[mid]->startY > point)
 227         {
 228             end = mid - 1;
 229             ret = mid;
 230         }
 231         else if (array[mid]->endY < point)
 232         {
 233             start = mid + 1;
 234             ret = start;
 235         }
 236     }
 237
 238     return ret;
 239 }
 240
 241 int wxRichTextFloatCollector::GetWidthFromFloatRect(const wxRichTextFloatRectMapArray& array, int index, int startY, int endY)
 242 {
 243     int ret = 0;
 244     int len = array.GetCount();
 245
 246     wxASSERT(index >= 0 && index < len);
 247
 248     if (array[index]->startY < startY && array[index]->endY > startY)
 249         ret = ret < array[index]->width ? array[index]->width : ret;
 250     while (index < len && array[index]->startY <= endY)
 251     {
 252         ret = ret < array[index]->width ? array[index]->width : ret;
 253         index++;
 254     }
 255
 256     return ret;
 257 }
 258
 259 wxRichTextFloatCollector::wxRichTextFloatCollector(const wxRect& rect) : m_left(wxRichTextFloatRectMapCmp), m_right(wxRichTextFloatRectMapCmp)
 260 {
 261     m_availableRect = rect;
 262     m_para = NULL;
 263 }
 264
 265 void wxRichTextFloatCollector::FreeFloatRectMapArray(wxRichTextFloatRectMapArray& array)
 266 {
 267     int len = array.GetCount();
 268     for (int i = 0; i < len; i++)
 269         delete array[i];
 270 }
 271
 272 wxRichTextFloatCollector::~wxRichTextFloatCollector()
 273 {
 274     FreeFloatRectMapArray(m_left);
 275     FreeFloatRectMapArray(m_right);
 276 }
 277
 278 int wxRichTextFloatCollector::GetFitPosition(const wxRichTextFloatRectMapArray& array, int start, int height) const
 279 {
 280     if (array.GetCount() == 0)
 281         return start;
 282
 283     int i = SearchAdjacentRect(array, start);
 284     int last = start;
 285     while (i < (int) array.GetCount())
 286     {
 287         if (array[i]->startY - last >= height)
 288             return last + 1;
 289         last = array[i]->endY;
 290         i++;
 291     }
 292
 293     return last + 1;
 294 }
 295
 296 int wxRichTextFloatCollector::GetFitPosition(int direction, int start, int height) const
 297 {
 298     if (direction == wxTEXT_BOX_ATTR_FLOAT_LEFT)
 299         return GetFitPosition(m_left, start, height);
 300     else if (direction == wxTEXT_BOX_ATTR_FLOAT_RIGHT)
 301         return GetFitPosition(m_right, start, height);
 302     else
 303     {
 304         wxASSERT("Never should be here");
 305         return start;
 306     }
 307 }
 308
 309 // Adds a floating image to the float collector.
 310 // The actual positioning is done by wxRichTextParagraph::LayoutFloat.
 311 void wxRichTextFloatCollector::CollectFloat(wxRichTextParagraph* para, wxRichTextObject* floating)
 312 {
 313     int direction = floating->GetFloatDirection();
 314
 315     wxPoint pos = floating->GetPosition();
 316     wxSize size = floating->GetCachedSize();
 317     wxRichTextFloatRectMap *map = new wxRichTextFloatRectMap(pos.y, pos.y + size.y, size.x, floating);
 318     switch (direction)
 319     {
 320         case wxTEXT_BOX_ATTR_FLOAT_NONE:
 321             delete map;
 322             break;
 323         case wxTEXT_BOX_ATTR_FLOAT_LEFT:
 324             // Just a not-enough simple assertion
 325             wxASSERT (m_left.Index(map) == wxNOT_FOUND);
 326             m_left.Add(map);
 327             break;
 328         case wxTEXT_BOX_ATTR_FLOAT_RIGHT:
 329             wxASSERT (m_right.Index(map) == wxNOT_FOUND);
 330             m_right.Add(map);
 331             break;
 332         default:
 333             delete map;
 334             wxASSERT("Unrecognised float attribute.");
 335     }
 336
 337     m_para = para;
 338 }
 339
 340 void wxRichTextFloatCollector::CollectFloat(wxRichTextParagraph* para)
 341 {
 342     wxRichTextObjectList::compatibility_iterator node = para->GetChildren().GetFirst();
 343     while (node)
 344     {
 345         wxRichTextObject* floating = node->GetData();
 346
 347         if (floating->IsFloating())
 348         {
 349             CollectFloat(para, floating);
 350         }
 351
 352         node = node->GetNext();
 353     }
 354
 355     m_para = para;
 356 }
 357
 358 wxRichTextParagraph* wxRichTextFloatCollector::LastParagraph()
 359 {
 360     return m_para;
 361 }
 362
 363 wxRect wxRichTextFloatCollector::GetAvailableRect(int startY, int endY)
 364 {
 365     int widthLeft = 0, widthRight = 0;
 366     if (m_left.GetCount() != 0)
 367     {
 368         int i = SearchAdjacentRect(m_left, startY);
 369         if (i < (int) m_left.GetCount())
 370             widthLeft = GetWidthFromFloatRect(m_left, i, startY, endY);
 371     }
 372     if (m_right.GetCount() != 0)
 373     {
 374         int j = SearchAdjacentRect(m_right, startY);
 375         if (j < (int) m_right.GetCount())
 376             widthRight = GetWidthFromFloatRect(m_right, j, startY, endY);
 377     }
 378
 379     // TODO: actually we want to use the actual image positions to find the
 380     // available remaining space, since the image might not be right up against
 381     // the left or right edge of the container.
 382     return wxRect(widthLeft + m_availableRect.x, 0, m_availableRect.width - widthLeft - widthRight, 0);
 383 }
 384
 385 int wxRichTextFloatCollector::GetLastRectBottom()
 386 {
 387     int ret = 0;
 388     int len = m_left.GetCount();
 389     if (len) {
 390         ret = ret > m_left[len-1]->endY ? ret : m_left[len-1]->endY;
 391     }
 392     len = m_right.GetCount();
 393     if (len) {
 394         ret = ret > m_right[len-1]->endY ? ret : m_right[len-1]->endY;
 395     }
 396
 397     return ret;
 398 }
 399
 400 void wxRichTextFloatCollector::DrawFloat(const wxRichTextFloatRectMapArray& array, wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& WXUNUSED(range), const wxRichTextSelection& selection, const wxRect& rect, int descent, int style)
 401 {
 402     int start = rect.y;
 403     int end = rect.y + rect.height;
 404     int i, j;
 405     i = SearchAdjacentRect(array, start);
 406     if (i < 0 || i >= (int) array.GetCount())
 407         return;
 408     j = SearchAdjacentRect(array, end);
 409     if (j < 0 || j >= (int) array.GetCount())
 410         j = array.GetCount() - 1;
 411     while (i <= j)
 412     {
 413         wxRichTextObject* obj = array[i]->anchor;
 414         wxRichTextRange r = obj->GetRange();
 415         obj->Draw(dc, context, r, selection, wxRect(obj->GetPosition(), obj->GetCachedSize()), descent, style);
 416         i++;
 417     }
 418 }
 419
 420 void wxRichTextFloatCollector::Draw(wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& range, const wxRichTextSelection& selection, const wxRect& rect, int descent, int style)
 421 {
 422     if (m_left.GetCount() > 0)
 423         DrawFloat(m_left, dc, context, range, selection, rect, descent, style);
 424     if (m_right.GetCount() > 0)
 425         DrawFloat(m_right, dc, context, range, selection, rect, descent, style);
 426 }
 427
 428 int wxRichTextFloatCollector::HitTestFloat(const wxRichTextFloatRectMapArray& array, wxDC& WXUNUSED(dc), wxRichTextDrawingContext& WXUNUSED(context), const wxPoint& pt, long& textPosition, wxRichTextObject** obj, int WXUNUSED(flags))
 429 {
 430     int i;
 431     if (array.GetCount() == 0)
 432         return wxRICHTEXT_HITTEST_NONE;
 433     i = SearchAdjacentRect(array, pt.y);
 434     if (i < 0 || i >= (int) array.GetCount())
 435         return wxRICHTEXT_HITTEST_NONE;
 436     if (!array[i]->anchor->IsShown())
 437         return wxRICHTEXT_HITTEST_NONE;
 438
 439     wxPoint point = array[i]->anchor->GetPosition();
 440     wxSize size = array[i]->anchor->GetCachedSize();
 441     if (point.x <= pt.x && point.x + size.x >= pt.x
 442         && point.y <= pt.y && point.y + size.y >= pt.y)
 443     {
 444         textPosition = array[i]->anchor->GetRange().GetStart();
 445         * obj = array[i]->anchor;
 446         if (pt.x > (pt.x + pt.x + size.x) / 2)
 447             return wxRICHTEXT_HITTEST_BEFORE;
 448         else
 449             return wxRICHTEXT_HITTEST_AFTER;
 450     }
 451
 452     return wxRICHTEXT_HITTEST_NONE;
 453 }
 454
 455 int wxRichTextFloatCollector::HitTest(wxDC& dc, wxRichTextDrawingContext& context, const wxPoint& pt, long& textPosition, wxRichTextObject** obj, int flags)
 456 {
 457     int ret = HitTestFloat(m_left, dc, context, pt, textPosition, obj, flags);
 458     if (ret == wxRICHTEXT_HITTEST_NONE)
 459     {
 460         ret = HitTestFloat(m_right, dc, context, pt, textPosition, obj, flags);
 461     }
 462     return ret;
 463 }
 464
 465 // Helpers for efficiency
 466 inline void wxCheckSetFont(wxDC& dc, const wxFont& font)
 467 {
 468     dc.SetFont(font);
 469 }
 470
 471 inline void wxCheckSetPen(wxDC& dc, const wxPen& pen)
 472 {
 473     const wxPen& pen1 = dc.GetPen();
 474     if (pen1.IsOk() && pen.IsOk())
 475     {
 476         if (pen1.GetWidth() == pen.GetWidth() &&
 477             pen1.GetStyle() == pen.GetStyle() &&
 478             pen1.GetColour() == pen.GetColour())
 479             return;
 480     }
 481     dc.SetPen(pen);
 482 }
 483
 484 inline void wxCheckSetBrush(wxDC& dc, const wxBrush& brush)
 485 {
 486     const wxBrush& brush1 = dc.GetBrush();
 487     if (brush1.IsOk() && brush.IsOk())
 488     {
 489         if (brush1.GetStyle() == brush.GetStyle() &&
 490             brush1.GetColour() == brush.GetColour())
 491             return;
 492     }
 493     dc.SetBrush(brush);
 494 }
 495
 496 /*!
 497  * wxRichTextObject
 498  * This is the base for drawable objects.
 499  */
 500
 501 IMPLEMENT_CLASS(wxRichTextObject, wxObject)
 502
 503 wxRichTextObject::wxRichTextObject(wxRichTextObject* parent)
 504 {
 505     m_refCount = 1;
 506     m_parent = parent;
 507     m_descent = 0;
 508     m_show = true;
 509 }
 510
 511 wxRichTextObject::~wxRichTextObject()
 512 {
 513 }
 514
 515 void wxRichTextObject::Dereference()
 516 {
 517     m_refCount --;
 518     if (m_refCount <= 0)
 519         delete this;
 520 }
 521
 522 /// Copy
 523 void wxRichTextObject::Copy(const wxRichTextObject& obj)
 524 {
 525     m_size = obj.m_size;
 526     m_maxSize = obj.m_maxSize;
 527     m_minSize = obj.m_minSize;
 528     m_pos = obj.m_pos;
 529     m_range = obj.m_range;
 530     m_ownRange = obj.m_ownRange;
 531     m_attributes = obj.m_attributes;
 532     m_properties = obj.m_properties;
 533     m_descent = obj.m_descent;
 534     m_show = obj.m_show;
 535 }
 536
 537 // Get/set the top-level container of this object.
 538 wxRichTextParagraphLayoutBox* wxRichTextObject::GetContainer() const
 539 {
 540     const wxRichTextObject* p = this;
 541     while (p)
 542     {
 543         if (p->IsTopLevel())
 544         {
 545             return wxDynamicCast(p, wxRichTextParagraphLayoutBox);
 546         }
 547         p = p->GetParent();
 548     }
 549     return NULL;
 550 }
 551
 552 void wxRichTextObject::SetMargins(int margin)
 553 {
 554     SetMargins(margin, margin, margin, margin);
 555 }
 556
 557 void wxRichTextObject::SetMargins(int leftMargin, int rightMargin, int topMargin, int bottomMargin)
 558 {
 559     GetAttributes().GetTextBoxAttr().GetMargins().GetLeft().SetValue(leftMargin, wxTEXT_ATTR_UNITS_PIXELS);
 560     GetAttributes().GetTextBoxAttr().GetMargins().GetRight().SetValue(rightMargin, wxTEXT_ATTR_UNITS_PIXELS);
 561     GetAttributes().GetTextBoxAttr().GetMargins().GetTop().SetValue(topMargin, wxTEXT_ATTR_UNITS_PIXELS);
 562     GetAttributes().GetTextBoxAttr().GetMargins().GetBottom().SetValue(bottomMargin, wxTEXT_ATTR_UNITS_PIXELS);
 563 }
 564
 565 int wxRichTextObject::GetLeftMargin() const
 566 {
 567     return GetAttributes().GetTextBoxAttr().GetMargins().GetLeft().GetValue();
 568 }
 569
 570 int wxRichTextObject::GetRightMargin() const
 571 {
 572     return GetAttributes().GetTextBoxAttr().GetMargins().GetRight().GetValue();
 573 }
 574
 575 int wxRichTextObject::GetTopMargin() const
 576 {
 577     return GetAttributes().GetTextBoxAttr().GetMargins().GetTop().GetValue();
 578 }
 579
 580 int wxRichTextObject::GetBottomMargin() const
 581 {
 582     return GetAttributes().GetTextBoxAttr().GetMargins().GetBottom().GetValue();
 583 }
 584
 585 // Calculate the available content space in the given rectangle, given the
 586 // margins, border and padding specified in the object's attributes.
 587 wxRect wxRichTextObject::GetAvailableContentArea(wxDC& dc, wxRichTextDrawingContext& context, const wxRect& outerRect) const
 588 {
 589     wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
 590     marginRect = outerRect;
 591     wxRichTextAttr attr(GetAttributes());
 592     context.ApplyVirtualAttributes(attr, (wxRichTextObject*) this);
 593     GetBoxRects(dc, GetBuffer(), attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
 594     return contentRect;
 595 }
 596
 597 // Invalidate the buffer. With no argument, invalidates whole buffer.
 598 void wxRichTextObject::Invalidate(const wxRichTextRange& invalidRange)
 599 {
 600     if (invalidRange != wxRICHTEXT_NONE)
 601     {
 602         // If this is a floating object, size may not be recalculated
 603         // after floats have been collected in an early stage of Layout.
 604         // So avoid resetting the cache for floating objects during layout.
 605         if (!IsFloating())
 606             SetCachedSize(wxDefaultSize);
 607         SetMaxSize(wxDefaultSize);
 608         SetMinSize(wxDefaultSize);
 609     }
 610 }
 611
 612 // Convert units in tenths of a millimetre to device units
 613 int wxRichTextObject::ConvertTenthsMMToPixels(wxDC& dc, int units) const
 614 {
 615     // Unscale
 616     double scale = 1.0;
 617     if (GetBuffer())
 618         scale = GetBuffer()->GetScale() / GetBuffer()->GetDimensionScale();
 619     int p = ConvertTenthsMMToPixels(dc.GetPPI().x, units, scale);
 620
 621     return p;
 622 }
 623
 624 // Convert units in tenths of a millimetre to device units
 625 int wxRichTextObject::ConvertTenthsMMToPixels(int ppi, int units, double scale)
 626 {
 627     // There are ppi pixels in 254.1 "1/10 mm"
 628
 629     double pixels = ((double) units * (double)ppi) / 254.1;
 630     if (scale != 1.0)
 631         pixels /= scale;
 632
 633     // If the result is very small, make it at least one pixel in size.
 634     if (pixels == 0 && units > 0)
 635         pixels = 1;
 636
 637     return (int) pixels;
 638 }
 639
 640 // Convert units in pixels to tenths of a millimetre
 641 int wxRichTextObject::ConvertPixelsToTenthsMM(wxDC& dc, int pixels) const
 642 {
 643     int p = pixels;
 644     double scale = 1.0;
 645     if (GetBuffer())
 646         scale = GetBuffer()->GetScale();
 647
 648     return ConvertPixelsToTenthsMM(dc.GetPPI().x, p, scale);
 649 }
 650
 651 int wxRichTextObject::ConvertPixelsToTenthsMM(int ppi, int pixels, double scale)
 652 {
 653     // There are ppi pixels in 254.1 "1/10 mm"
 654
 655     double p = double(pixels);
 656
 657     if (scale != 1.0)
 658         p *= scale;
 659
 660     int units = int( p * 254.1 / (double) ppi );
 661     return units;
 662 }
 663
 664 // Draw the borders and background for the given rectangle and attributes.
 665 // Width and height are taken to be the outer margin size, not the content.
 666 bool wxRichTextObject::DrawBoxAttributes(wxDC& dc, wxRichTextBuffer* buffer, const wxRichTextAttr& attr, const wxRect& boxRect, int flags)
 667 {
 668     // Assume boxRect is the area around the content
 669     wxRect marginRect = boxRect;
 670     wxRect contentRect, borderRect, paddingRect, outlineRect;
 671
 672     GetBoxRects(dc, buffer, attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
 673
 674     // Margin is transparent. Draw background from margin.
 675     if (attr.HasBackgroundColour() || (flags & wxRICHTEXT_DRAW_SELECTED))
 676     {
 677         wxColour colour;
 678         if (flags & wxRICHTEXT_DRAW_SELECTED)
 679         {
 680             // TODO: get selection colour from control?
 681             colour = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
 682         }
 683         else
 684             colour = attr.GetBackgroundColour();
 685
 686         wxPen pen(colour);
 687         wxBrush brush(colour);
 688
 689         dc.SetPen(pen);
 690         dc.SetBrush(brush);
 691         dc.DrawRectangle(borderRect);
 692     }
 693
 694     if (flags & wxRICHTEXT_DRAW_GUIDELINES)
 695     {
 696         wxRichTextAttr editBorderAttr = attr;
 697         // TODO: make guideline colour configurable
 698         editBorderAttr.GetTextBoxAttr().GetBorder().SetColour(*wxLIGHT_GREY);
 699         editBorderAttr.GetTextBoxAttr().GetBorder().SetWidth(1, wxTEXT_ATTR_UNITS_PIXELS);
 700         editBorderAttr.GetTextBoxAttr().GetBorder().SetStyle(wxTEXT_BOX_ATTR_BORDER_SOLID);
 701
 702         DrawBorder(dc, buffer, editBorderAttr.GetTextBoxAttr().GetBorder(), borderRect, flags);
 703     }
 704
 705     if (attr.GetTextBoxAttr().GetBorder().IsValid())
 706         DrawBorder(dc, buffer, attr.GetTextBoxAttr().GetBorder(), borderRect);
 707
 708     if (attr.GetTextBoxAttr().GetOutline().IsValid())
 709         DrawBorder(dc, buffer, attr.GetTextBoxAttr().GetOutline(), outlineRect);
 710
 711     return true;
 712 }
 713
 714 // Draw a border
 715 bool wxRichTextObject::DrawBorder(wxDC& dc, wxRichTextBuffer* buffer, const wxTextAttrBorders& attr, const wxRect& rect, int WXUNUSED(flags))
 716 {
 717     int borderLeft = 0, borderRight = 0, borderTop = 0, borderBottom = 0;
 718     wxTextAttrDimensionConverter converter(dc, buffer ? buffer->GetScale() : 1.0);
 719
 720     if (attr.GetLeft().IsValid() && attr.GetLeft().GetStyle() != wxTEXT_BOX_ATTR_BORDER_NONE)
 721     {
 722         borderLeft = converter.GetPixels(attr.GetLeft().GetWidth());
 723         wxColour col(attr.GetLeft().GetColour());
 724
 725         // If pen width is > 1, resorts to a solid rectangle.
 726         if (borderLeft == 1)
 727         {
 728             int penStyle = wxSOLID;
 729             if (attr.GetLeft().GetStyle() == wxTEXT_BOX_ATTR_BORDER_DOTTED)
 730                 penStyle = wxDOT;
 731             else if (attr.GetLeft().GetStyle() == wxTEXT_BOX_ATTR_BORDER_DASHED)
 732                 penStyle = wxLONG_DASH;
 733             wxPen pen(col, 1, penStyle);
 734             dc.SetPen(pen);
 735             dc.DrawLine(rect.x, rect.y, rect.x, rect.y + rect.height);
 736
 737         }
 738         else if (borderLeft > 1)
 739         {
 740             wxPen pen(col);
 741             wxBrush brush(col);
 742             dc.SetPen(pen);
 743             dc.SetBrush(brush);
 744             dc.DrawRectangle(rect.x, rect.y, borderLeft, rect.height);
 745         }
 746     }
 747
 748     if (attr.GetRight().IsValid() && attr.GetRight().GetStyle() != wxTEXT_BOX_ATTR_BORDER_NONE)
 749     {
 750         borderRight = converter.GetPixels(attr.GetRight().GetWidth());
 751
 752         wxColour col(attr.GetRight().GetColour());
 753
 754         // If pen width is > 1, resorts to a solid rectangle.
 755         if (borderRight == 1)
 756         {
 757             int penStyle = wxSOLID;
 758             if (attr.GetRight().GetStyle() == wxTEXT_BOX_ATTR_BORDER_DOTTED)
 759                 penStyle = wxDOT;
 760             else if (attr.GetRight().GetStyle() == wxTEXT_BOX_ATTR_BORDER_DASHED)
 761                 penStyle = wxLONG_DASH;
 762             wxPen pen(col, 1, penStyle);
 763             dc.SetPen(pen);
 764             dc.DrawLine(rect.x + rect.width, rect.y, rect.x + rect.width, rect.y + rect.height + 1);
 765
 766         }
 767         else if (borderRight > 1)
 768         {
 769             wxPen pen(col);
 770             wxBrush brush(col);
 771             dc.SetPen(pen);
 772             dc.SetBrush(brush);
 773             dc.DrawRectangle(rect.x + rect.width - borderRight, rect.y, borderRight, rect.height);
 774         }
 775     }
 776
 777     if (attr.GetTop().IsValid() && attr.GetTop().GetStyle() != wxTEXT_BOX_ATTR_BORDER_NONE)
 778     {
 779         borderTop = converter.GetPixels(attr.GetTop().GetWidth());
 780
 781         wxColour col(attr.GetTop().GetColour());
 782
 783         // If pen width is > 1, resorts to a solid rectangle.
 784         if (borderTop == 1)
 785         {
 786             int penStyle = wxSOLID;
 787             if (attr.GetTop().GetStyle() == wxTEXT_BOX_ATTR_BORDER_DOTTED)
 788                 penStyle = wxDOT;
 789             else if (attr.GetTop().GetStyle() == wxTEXT_BOX_ATTR_BORDER_DASHED)
 790                 penStyle = wxLONG_DASH;
 791             wxPen pen(col, 1, penStyle);
 792             dc.SetPen(pen);
 793             dc.DrawLine(rect.x, rect.y, rect.x + rect.width, rect.y);
 794
 795         }
 796         else if (borderTop > 1)
 797         {
 798             wxPen pen(col);
 799             wxBrush brush(col);
 800             dc.SetPen(pen);
 801             dc.SetBrush(brush);
 802             dc.DrawRectangle(rect.x, rect.y, rect.width, borderTop);
 803         }
 804     }
 805
 806     if (attr.GetBottom().IsValid() && attr.GetBottom().GetStyle() != wxTEXT_BOX_ATTR_BORDER_NONE)
 807     {
 808         borderBottom = converter.GetPixels(attr.GetBottom().GetWidth());
 809         wxColour col(attr.GetTop().GetColour());
 810
 811         // If pen width is > 1, resorts to a solid rectangle.
 812         if (borderBottom == 1)
 813         {
 814             int penStyle = wxSOLID;
 815             if (attr.GetBottom().GetStyle() == wxTEXT_BOX_ATTR_BORDER_DOTTED)
 816                 penStyle = wxDOT;
 817             else if (attr.GetBottom().GetStyle() == wxTEXT_BOX_ATTR_BORDER_DASHED)
 818                 penStyle = wxLONG_DASH;
 819             wxPen pen(col, 1, penStyle);
 820             dc.SetPen(pen);
 821             dc.DrawLine(rect.x, rect.y + rect.height, rect.x + rect.width, rect.y + rect.height);
 822
 823         }
 824         else if (borderBottom > 1)
 825         {
 826             wxPen pen(col);
 827             wxBrush brush(col);
 828             dc.SetPen(pen);
 829             dc.SetBrush(brush);
 830             dc.DrawRectangle(rect.x, rect.y + rect.height - borderBottom, rect.width, borderBottom);
 831         }
 832     }
 833
 834     return true;
 835 }
 836
 837 // Get the various rectangles of the box model in pixels. You can either specify contentRect (inner)
 838 // or marginRect (outer), and the other must be the default rectangle (no width or height).
 839 // Note that the outline doesn't affect the position of the rectangle, it's drawn in whatever space
 840 // is available.
 841 //
 842 // | Margin | Border | Padding | CONTENT | Padding | Border | Margin |
 843
 844 bool wxRichTextObject::GetBoxRects(wxDC& dc, wxRichTextBuffer* buffer, const wxRichTextAttr& attr, wxRect& marginRect, wxRect& borderRect, wxRect& contentRect, wxRect& paddingRect, wxRect& outlineRect)
 845 {
 846     int borderLeft = 0, borderRight = 0, borderTop = 0, borderBottom = 0;
 847     int outlineLeft = 0, outlineRight = 0, outlineTop = 0, outlineBottom = 0;
 848     int paddingLeft = 0, paddingRight = 0, paddingTop = 0, paddingBottom = 0;
 849     int marginLeft = 0, marginRight = 0, marginTop = 0, marginBottom = 0;
 850
 851     wxTextAttrDimensionConverter converter(dc, buffer ? buffer->GetScale() : 1.0);
 852
 853     if (attr.GetTextBoxAttr().GetMargins().GetLeft().IsValid())
 854         marginLeft = converter.GetPixels(attr.GetTextBoxAttr().GetMargins().GetLeft());
 855     if (attr.GetTextBoxAttr().GetMargins().GetRight().IsValid())
 856         marginRight = converter.GetPixels(attr.GetTextBoxAttr().GetMargins().GetRight());
 857     if (attr.GetTextBoxAttr().GetMargins().GetTop().IsValid())
 858         marginTop = converter.GetPixels(attr.GetTextBoxAttr().GetMargins().GetTop());
 859     if (attr.GetTextBoxAttr().GetMargins().GetBottom().IsValid())
 860         marginBottom = converter.GetPixels(attr.GetTextBoxAttr().GetMargins().GetBottom());
 861
 862     if (attr.GetTextBoxAttr().GetBorder().GetLeft().GetWidth().IsValid())
 863         borderLeft = converter.GetPixels(attr.GetTextBoxAttr().GetBorder().GetLeft().GetWidth());
 864     if (attr.GetTextBoxAttr().GetBorder().GetRight().GetWidth().IsValid())
 865         borderRight = converter.GetPixels(attr.GetTextBoxAttr().GetBorder().GetRight().GetWidth());
 866     if (attr.GetTextBoxAttr().GetBorder().GetTop().GetWidth().IsValid())
 867         borderTop = converter.GetPixels(attr.GetTextBoxAttr().GetBorder().GetTop().GetWidth());
 868     if (attr.GetTextBoxAttr().GetBorder().GetBottom().GetWidth().IsValid())
 869         borderBottom = converter.GetPixels(attr.GetTextBoxAttr().GetBorder().GetBottom().GetWidth());
 870
 871     if (attr.GetTextBoxAttr().GetPadding().GetLeft().IsValid())
 872         paddingLeft = converter.GetPixels(attr.GetTextBoxAttr().GetPadding().GetLeft());
 873     if (attr.GetTextBoxAttr().GetPadding().GetRight().IsValid())
 874         paddingRight = converter.GetPixels(attr.GetTextBoxAttr().GetPadding().GetRight());
 875     if (attr.GetTextBoxAttr().GetPadding().GetTop().IsValid())
 876         paddingTop = converter.GetPixels(attr.GetTextBoxAttr().GetPadding().GetTop());
 877     if (attr.GetTextBoxAttr().GetPadding().GetBottom().IsValid())
 878         paddingBottom = converter.GetPixels(attr.GetTextBoxAttr().GetPadding().GetBottom());
 879
 880     if (attr.GetTextBoxAttr().GetOutline().GetLeft().GetWidth().IsValid())
 881         outlineLeft = converter.GetPixels(attr.GetTextBoxAttr().GetOutline().GetLeft().GetWidth());
 882     if (attr.GetTextBoxAttr().GetOutline().GetRight().GetWidth().IsValid())
 883         outlineRight = converter.GetPixels(attr.GetTextBoxAttr().GetOutline().GetRight().GetWidth());
 884     if (attr.GetTextBoxAttr().GetOutline().GetTop().GetWidth().IsValid())
 885         outlineTop = converter.GetPixels(attr.GetTextBoxAttr().GetOutline().GetTop().GetWidth());
 886     if (attr.GetTextBoxAttr().GetOutline().GetBottom().GetWidth().IsValid())
 887         outlineBottom = converter.GetPixels(attr.GetTextBoxAttr().GetOutline().GetBottom().GetWidth());
 888
 889     int leftTotal = marginLeft + borderLeft + paddingLeft;
 890     int rightTotal = marginRight + borderRight + paddingRight;
 891     int topTotal = marginTop + borderTop + paddingTop;
 892     int bottomTotal = marginBottom + borderBottom + paddingBottom;
 893
 894     if (marginRect != wxRect())
 895     {
 896         contentRect.x = marginRect.x + leftTotal;
 897         contentRect.y = marginRect.y + topTotal;
 898         contentRect.width = marginRect.width - (leftTotal + rightTotal);
 899         contentRect.height = marginRect.height - (topTotal + bottomTotal);
 900     }
 901     else
 902     {
 903         marginRect.x = contentRect.x - leftTotal;
 904         marginRect.y = contentRect.y - topTotal;
 905         marginRect.width = contentRect.width + (leftTotal + rightTotal);
 906         marginRect.height = contentRect.height + (topTotal + bottomTotal);
 907     }
 908
 909     borderRect.x = marginRect.x + marginLeft;
 910     borderRect.y = marginRect.y + marginTop;
 911     borderRect.width = marginRect.width - (marginLeft + marginRight);
 912     borderRect.height = marginRect.height - (marginTop + marginBottom);
 913
 914     paddingRect.x = marginRect.x + marginLeft + borderLeft;
 915     paddingRect.y = marginRect.y + marginTop + borderTop;
 916     paddingRect.width = marginRect.width - (marginLeft + marginRight + borderLeft + borderRight);
 917     paddingRect.height = marginRect.height - (marginTop + marginBottom + borderTop + borderBottom);
 918
 919     // The outline is outside the margin and doesn't influence the overall box position or content size.
 920     outlineRect.x = marginRect.x - outlineLeft;
 921     outlineRect.y = marginRect.y - outlineTop;
 922     outlineRect.width = marginRect.width + (outlineLeft + outlineRight);
 923     outlineRect.height = marginRect.height + (outlineTop + outlineBottom);
 924
 925     return true;
 926 }
 927
 928 // Get the total margin for the object in pixels, taking into account margin, padding and border size
 929 bool wxRichTextObject::GetTotalMargin(wxDC& dc, wxRichTextBuffer* buffer, const wxRichTextAttr& attr, int& leftMargin, int& rightMargin,
 930         int& topMargin, int& bottomMargin)
 931 {
 932     // Assume boxRect is the area around the content
 933     wxRect contentRect, marginRect, borderRect, paddingRect, outlineRect;
 934     marginRect = wxRect(0, 0, 1000, 1000);
 935
 936     GetBoxRects(dc, buffer, attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
 937
 938     leftMargin = contentRect.GetLeft() - marginRect.GetLeft();
 939     rightMargin = marginRect.GetRight() - contentRect.GetRight();
 940     topMargin = contentRect.GetTop() - marginRect.GetTop();
 941     bottomMargin = marginRect.GetBottom() - contentRect.GetBottom();
 942
 943     return true;
 944 }
 945
 946 // Returns the rectangle which the child has available to it given restrictions specified in the
 947 // child attribute, e.g. 50% width of the parent, 400 pixels, x position 20% of the parent, etc.
 948 // availableContainerSpace might be a parent that the cell has to compute its width relative to.
 949 // E.g. a cell that's 50% of its parent.
 950 wxRect wxRichTextObject::AdjustAvailableSpace(wxDC& dc, wxRichTextBuffer* buffer, const wxRichTextAttr& WXUNUSED(parentAttr), const wxRichTextAttr& childAttr, const wxRect& availableParentSpace, const wxRect& availableContainerSpace)
 951 {
 952     wxRect rect = availableParentSpace;
 953     double scale = 1.0;
 954     if (buffer)
 955         scale = buffer->GetScale();
 956
 957     wxTextAttrDimensionConverter converter(dc, scale, availableContainerSpace.GetSize());
 958
 959     if (childAttr.GetTextBoxAttr().GetWidth().IsValid())
 960         rect.width = converter.GetPixels(childAttr.GetTextBoxAttr().GetWidth());
 961
 962     if (childAttr.GetTextBoxAttr().GetHeight().IsValid())
 963         rect.height = converter.GetPixels(childAttr.GetTextBoxAttr().GetHeight());
 964
 965     // Can specify either left or right for the position (we're assuming we can't
 966     // set the left and right edges to effectively set the size. Would we want to do that?)
 967     if (childAttr.GetTextBoxAttr().GetPosition().GetLeft().IsValid())
 968     {
 969         rect.x = rect.x + converter.GetPixels(childAttr.GetTextBoxAttr().GetPosition().GetLeft());
 970     }
 971     else if (childAttr.GetTextBoxAttr().GetPosition().GetRight().IsValid())
 972     {
 973         int x = converter.GetPixels(childAttr.GetTextBoxAttr().GetPosition().GetRight());
 974         if (childAttr.GetTextBoxAttr().GetPosition().GetRight().GetPosition() == wxTEXT_BOX_ATTR_POSITION_RELATIVE)
 975             rect.x = availableContainerSpace.x + availableContainerSpace.width - rect.width;
 976         else
 977             rect.x += x;
 978     }
 979
 980     if (childAttr.GetTextBoxAttr().GetPosition().GetTop().IsValid())
 981     {
 982         rect.y = rect.y + converter.GetPixels(childAttr.GetTextBoxAttr().GetPosition().GetTop());
 983     }
 984     else if (childAttr.GetTextBoxAttr().GetPosition().GetBottom().IsValid())
 985     {
 986         int y = converter.GetPixels(childAttr.GetTextBoxAttr().GetPosition().GetBottom());
 987         if (childAttr.GetTextBoxAttr().GetPosition().GetBottom().GetPosition() == wxTEXT_BOX_ATTR_POSITION_RELATIVE)
 988             rect.y = availableContainerSpace.y + availableContainerSpace.height - rect.height;
 989         else
 990             rect.y += y;
 991     }
 992
 993     if (rect.GetWidth() > availableParentSpace.GetWidth())
 994         rect.SetWidth(availableParentSpace.GetWidth());
 995
 996     return rect;
 997 }
 998
 999 // Dump to output stream for debugging
1000 void wxRichTextObject::Dump(wxTextOutputStream& stream)
1001 {
1002     stream << GetClassInfo()->GetClassName() << wxT("\n");
1003     stream << wxString::Format(wxT("Size: %d,%d. Position: %d,%d, Range: %ld,%ld"), m_size.x, m_size.y, m_pos.x, m_pos.y, m_range.GetStart(), m_range.GetEnd()) << wxT("\n");
1004     stream << wxString::Format(wxT("Text colour: %d,%d,%d."), (int) m_attributes.GetTextColour().Red(), (int) m_attributes.GetTextColour().Green(), (int) m_attributes.GetTextColour().Blue()) << wxT("\n");
1005 }
1006
1007 // Gets the containing buffer
1008 wxRichTextBuffer* wxRichTextObject::GetBuffer() const
1009 {
1010     const wxRichTextObject* obj = this;
1011     while (obj && !wxDynamicCast(obj, wxRichTextBuffer))
1012         obj = obj->GetParent();
1013     return wxDynamicCast(obj, wxRichTextBuffer);
1014 }
1015
1016 // Get the absolute object position, by traversing up the child/parent hierarchy
1017 wxPoint wxRichTextObject::GetAbsolutePosition() const
1018 {
1019     wxPoint pt = GetPosition();
1020
1021     wxRichTextObject* p = GetParent();
1022     while (p)
1023     {
1024         pt = pt + p->GetPosition();
1025         p = p->GetParent();
1026     }
1027
1028     return pt;
1029 }
1030
1031 // Hit-testing: returns a flag indicating hit test details, plus
1032 // information about position
1033 int wxRichTextObject::HitTest(wxDC& WXUNUSED(dc), wxRichTextDrawingContext& WXUNUSED(context), const wxPoint& pt, long& textPosition, wxRichTextObject** obj, wxRichTextObject** contextObj, int WXUNUSED(flags))
1034 {
1035     if (!IsShown())
1036         return wxRICHTEXT_HITTEST_NONE;
1037
1038     wxRect rect = GetRect();
1039     if (pt.x >= rect.x && pt.x < rect.x + rect.width &&
1040         pt.y >= rect.y && pt.y < rect.y + rect.height)
1041     {
1042         *obj = this;
1043         *contextObj = GetParentContainer();
1044         textPosition = GetRange().GetStart();
1045         return wxRICHTEXT_HITTEST_ON;
1046     }
1047     else
1048         return wxRICHTEXT_HITTEST_NONE;
1049 }
1050
1051 // Lays out the object first with a given amount of space, and then if no width was specified in attr,
1052 // lays out the object again using the maximum ('best') size
1053 bool wxRichTextObject::LayoutToBestSize(wxDC& dc, wxRichTextDrawingContext& context, wxRichTextBuffer* buffer,
1054     const wxRichTextAttr& parentAttr, const wxRichTextAttr& attr,
1055     const wxRect& availableParentSpace, const wxRect& availableContainerSpace,
1056     int style)
1057 {
1058     wxRect availableChildRect = AdjustAvailableSpace(dc, buffer, parentAttr, attr, availableParentSpace, availableContainerSpace);
1059     wxRect originalAvailableRect = availableChildRect;
1060     Layout(dc, context, availableChildRect, availableContainerSpace, style);
1061
1062     wxSize maxSize = GetMaxSize();
1063
1064     // Don't ignore if maxSize.x is zero, since we need to redo the paragraph's lines
1065     // on this basis
1066     if (!attr.GetTextBoxAttr().GetWidth().IsValid() && maxSize.x < availableChildRect.width)
1067     {
1068         // Redo the layout with a fixed, minimum size this time.
1069         Invalidate(wxRICHTEXT_ALL);
1070         wxRichTextAttr newAttr(attr);
1071         newAttr.GetTextBoxAttr().GetWidth().SetValue(maxSize.x, wxTEXT_ATTR_UNITS_PIXELS);
1072         newAttr.GetTextBoxAttr().GetWidth().SetPosition(wxTEXT_BOX_ATTR_POSITION_ABSOLUTE);
1073
1074         availableChildRect = AdjustAvailableSpace(dc, buffer, parentAttr, newAttr, availableParentSpace, availableContainerSpace);
1075
1076         // If a paragraph, align the whole paragraph.
1077         // Problem with this: if we're limited by a floating object, a line may be centered
1078         // w.r.t. the smaller resulting box rather than the actual available width.
1079         if (attr.HasAlignment() && !GetContainer()->GetFloatCollector()->HasFloats()) // FIXME: aligning whole paragraph not compatible with floating objects
1080         {
1081             // centering, right-justification
1082             if (attr.GetAlignment() == wxTEXT_ALIGNMENT_CENTRE)
1083             {
1084                 availableChildRect.x = (originalAvailableRect.GetWidth() - availableChildRect.GetWidth())/2 + availableChildRect.x;
1085             }
1086             else if (attr.GetAlignment() == wxTEXT_ALIGNMENT_RIGHT)
1087             {
1088                 availableChildRect.x = availableChildRect.x + originalAvailableRect.GetWidth() - availableChildRect.GetWidth();
1089             }
1090         }
1091
1092         Layout(dc, context, availableChildRect, availableContainerSpace, style);
1093     }
1094
1095     /*
1096      __________________
1097     |   ____________   |
1098     |  |            |  |
1099
1100
1101     */
1102
1103     return true;
1104 }
1105
1106 // Move the object recursively, by adding the offset from old to new
1107 void wxRichTextObject::Move(const wxPoint& pt)
1108 {
1109     SetPosition(pt);
1110 }
1111
1112
1113 /*!
1114  * wxRichTextCompositeObject
1115  * This is the base for drawable objects.
1116  */
1117
1118 IMPLEMENT_CLASS(wxRichTextCompositeObject, wxRichTextObject)
1119
1120 wxRichTextCompositeObject::wxRichTextCompositeObject(wxRichTextObject* parent):
1121     wxRichTextObject(parent)
1122 {
1123 }
1124
1125 wxRichTextCompositeObject::~wxRichTextCompositeObject()
1126 {
1127     DeleteChildren();
1128 }
1129
1130 /// Get the nth child
1131 wxRichTextObject* wxRichTextCompositeObject::GetChild(size_t n) const
1132 {
1133     wxASSERT ( n < m_children.GetCount() );
1134
1135     return m_children.Item(n)->GetData();
1136 }
1137
1138 /// Append a child, returning the position
1139 size_t wxRichTextCompositeObject::AppendChild(wxRichTextObject* child)
1140 {
1141     m_children.Append(child);
1142     child->SetParent(this);
1143     return m_children.GetCount() - 1;
1144 }
1145
1146 /// Insert the child in front of the given object, or at the beginning
1147 bool wxRichTextCompositeObject::InsertChild(wxRichTextObject* child, wxRichTextObject* inFrontOf)
1148 {
1149     if (inFrontOf)
1150     {
1151         wxRichTextObjectList::compatibility_iterator node = m_children.Find(inFrontOf);
1152         m_children.Insert(node, child);
1153     }
1154     else
1155         m_children.Insert(child);
1156     child->SetParent(this);
1157
1158     return true;
1159 }
1160
1161 /// Delete the child
1162 bool wxRichTextCompositeObject::RemoveChild(wxRichTextObject* child, bool deleteChild)
1163 {
1164     wxRichTextObjectList::compatibility_iterator node = m_children.Find(child);
1165     if (node)
1166     {
1167         wxRichTextObject* obj = node->GetData();
1168         m_children.Erase(node);
1169         if (deleteChild)
1170             delete obj;
1171
1172         return true;
1173     }
1174     return false;
1175 }
1176
1177 /// Delete all children
1178 bool wxRichTextCompositeObject::DeleteChildren()
1179 {
1180     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1181     while (node)
1182     {
1183         wxRichTextObjectList::compatibility_iterator oldNode = node;
1184
1185         wxRichTextObject* child = node->GetData();
1186         child->Dereference(); // Only delete if reference count is zero
1187
1188         node = node->GetNext();
1189         m_children.Erase(oldNode);
1190     }
1191
1192     return true;
1193 }
1194
1195 /// Get the child count
1196 size_t wxRichTextCompositeObject::GetChildCount() const
1197 {
1198     return m_children.GetCount();
1199 }
1200
1201 /// Copy
1202 void wxRichTextCompositeObject::Copy(const wxRichTextCompositeObject& obj)
1203 {
1204     wxRichTextObject::Copy(obj);
1205
1206     DeleteChildren();
1207
1208     wxRichTextObjectList::compatibility_iterator node = obj.m_children.GetFirst();
1209     while (node)
1210     {
1211         wxRichTextObject* child = node->GetData();
1212         wxRichTextObject* newChild = child->Clone();
1213         newChild->SetParent(this);
1214         m_children.Append(newChild);
1215
1216         node = node->GetNext();
1217     }
1218 }
1219
1220 /// Hit-testing: returns a flag indicating hit test details, plus
1221 /// information about position
1222 int wxRichTextCompositeObject::HitTest(wxDC& dc, wxRichTextDrawingContext& context, const wxPoint& pt, long& textPosition, wxRichTextObject** obj, wxRichTextObject** contextObj, int flags)
1223 {
1224     if (!IsShown())
1225         return wxRICHTEXT_HITTEST_NONE;
1226
1227     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1228     while (node)
1229     {
1230         wxRichTextObject* child = node->GetData();
1231
1232         if (child->IsShown() && child->IsTopLevel() && (flags & wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS))
1233         {
1234             // Just check if we hit the overall object
1235             int ret = child->wxRichTextObject::HitTest(dc, context, pt, textPosition, obj, contextObj, flags);
1236             if (ret != wxRICHTEXT_HITTEST_NONE)
1237                 return ret;
1238         }
1239         else if (child->IsShown())
1240         {
1241             int ret = child->HitTest(dc, context, pt, textPosition, obj, contextObj, flags);
1242             if (ret != wxRICHTEXT_HITTEST_NONE)
1243                 return ret;
1244         }
1245
1246         node = node->GetNext();
1247     }
1248
1249     return wxRICHTEXT_HITTEST_NONE;
1250 }
1251
1252 /// Finds the absolute position and row height for the given character position
1253 bool wxRichTextCompositeObject::FindPosition(wxDC& dc, wxRichTextDrawingContext& context, long index, wxPoint& pt, int* height, bool forceLineStart)
1254 {
1255     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1256     while (node)
1257     {
1258         wxRichTextObject* child = node->GetData();
1259
1260         // Don't recurse if the child is a top-level object,
1261         // such as a text box, because the character position will no longer
1262         // apply. By definition, a top-level object has its own range of
1263         // character positions.
1264         if (!child->IsTopLevel() && child->FindPosition(dc, context, index, pt, height, forceLineStart))
1265             return true;
1266
1267         node = node->GetNext();
1268     }
1269
1270     return false;
1271 }
1272
1273 /// Calculate range
1274 void wxRichTextCompositeObject::CalculateRange(long start, long& end)
1275 {
1276     long current = start;
1277     long lastEnd = current;
1278
1279     if (IsTopLevel())
1280     {
1281         current = 0;
1282         lastEnd = 0;
1283     }
1284
1285     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1286     while (node)
1287     {
1288         wxRichTextObject* child = node->GetData();
1289         long childEnd = 0;
1290
1291         child->CalculateRange(current, childEnd);
1292         lastEnd = childEnd;
1293
1294         current = childEnd + 1;
1295
1296         node = node->GetNext();
1297     }
1298
1299     if (IsTopLevel())
1300     {
1301         // A top-level object always has a range of size 1,
1302         // because its children don't count at this level.
1303         end = start;
1304         m_range.SetRange(start, start);
1305
1306         // An object with no children has zero length
1307         if (m_children.GetCount() == 0)
1308             lastEnd --;
1309         m_ownRange.SetRange(0, lastEnd);
1310     }
1311     else
1312     {
1313         end = lastEnd;
1314
1315         // An object with no children has zero length
1316         if (m_children.GetCount() == 0)
1317             end --;
1318
1319         m_range.SetRange(start, end);
1320     }
1321 }
1322
1323 /// Delete range from layout.
1324 bool wxRichTextCompositeObject::DeleteRange(const wxRichTextRange& range)
1325 {
1326     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1327
1328     while (node)
1329     {
1330         wxRichTextObject* obj = (wxRichTextObject*) node->GetData();
1331         wxRichTextObjectList::compatibility_iterator next = node->GetNext();
1332
1333         // Delete the range in each paragraph
1334
1335         // When a chunk has been deleted, internally the content does not
1336         // now match the ranges.
1337         // However, so long as deletion is not done on the same object twice this is OK.
1338         // If you may delete content from the same object twice, recalculate
1339         // the ranges inbetween DeleteRange calls by calling CalculateRanges, and
1340         // adjust the range you're deleting accordingly.
1341
1342         if (!obj->GetRange().IsOutside(range))
1343         {
1344             // No need to delete within a top-level object; just removing this object will do fine
1345             if (!obj->IsTopLevel())
1346                 obj->DeleteRange(range);
1347
1348             // Delete an empty object, or paragraph within this range.
1349             if (obj->IsEmpty() ||
1350                 (range.GetStart() <= obj->GetRange().GetStart() && range.GetEnd() >= obj->GetRange().GetEnd()))
1351             {
1352                 // An empty paragraph has length 1, so won't be deleted unless the
1353                 // whole range is deleted.
1354                 RemoveChild(obj, true);
1355             }
1356         }
1357
1358         node = next;
1359     }
1360
1361     return true;
1362 }
1363
1364 /// Get any text in this object for the given range
1365 wxString wxRichTextCompositeObject::GetTextForRange(const wxRichTextRange& range) const
1366 {
1367     wxString text;
1368     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1369     while (node)
1370     {
1371         wxRichTextObject* child = node->GetData();
1372         wxRichTextRange childRange = range;
1373         if (!child->GetRange().IsOutside(range))
1374         {
1375             childRange.LimitTo(child->GetRange());
1376
1377             wxString childText = child->GetTextForRange(childRange);
1378
1379             text += childText;
1380         }
1381         node = node->GetNext();
1382     }
1383
1384     return text;
1385 }
1386
1387 /// Get the child object at the given character position
1388 wxRichTextObject* wxRichTextCompositeObject::GetChildAtPosition(long pos) const
1389 {
1390     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1391     while (node)
1392     {
1393         wxRichTextObject* child = node->GetData();
1394         if (child->GetRange().GetStart() == pos)
1395             return child;
1396         node = node->GetNext();
1397     }
1398     return NULL;
1399 }
1400
1401 /// Recursively merge all pieces that can be merged.
1402 bool wxRichTextCompositeObject::Defragment(const wxRichTextRange& range)
1403 {
1404     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1405     while (node)
1406     {
1407         wxRichTextObject* child = node->GetData();
1408         if (range == wxRICHTEXT_ALL || !child->GetRange().IsOutside(range))
1409         {
1410             wxRichTextCompositeObject* composite = wxDynamicCast(child, wxRichTextCompositeObject);
1411             if (composite)
1412                 composite->Defragment();
1413
1414             if (node->GetNext())
1415             {
1416                 wxRichTextObject* nextChild = node->GetNext()->GetData();
1417                 if (child->CanMerge(nextChild) && child->Merge(nextChild))
1418                 {
1419                     nextChild->Dereference();
1420                     m_children.Erase(node->GetNext());
1421
1422                     // Don't set node -- we'll see if we can merge again with the next
1423                     // child.
1424                 }
1425                 else
1426                     node = node->GetNext();
1427             }
1428             else
1429                 node = node->GetNext();
1430         }
1431         else
1432             node = node->GetNext();
1433     }
1434
1435     // Delete any remaining empty objects, but leave at least one empty object per composite object.
1436     if (GetChildCount() > 1)
1437     {
1438         node = m_children.GetFirst();
1439         while (node)
1440         {
1441             wxRichTextObjectList::compatibility_iterator next = node->GetNext();
1442             wxRichTextObject* child = node->GetData();
1443             if (range == wxRICHTEXT_ALL || !child->GetRange().IsOutside(range))
1444             {
1445                 if (child->IsEmpty())
1446                 {
1447                     child->Dereference();
1448                     m_children.Erase(node);
1449                 }
1450                 node = next;
1451             }
1452             else
1453                 node = node->GetNext();
1454         }
1455     }
1456
1457     return true;
1458 }
1459
1460 /// Dump to output stream for debugging
1461 void wxRichTextCompositeObject::Dump(wxTextOutputStream& stream)
1462 {
1463     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1464     while (node)
1465     {
1466         wxRichTextObject* child = node->GetData();
1467         child->Dump(stream);
1468         node = node->GetNext();
1469     }
1470 }
1471
1472 /// Get/set the object size for the given range. Returns false if the range
1473 /// is invalid for this object.
1474 bool wxRichTextCompositeObject::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, wxRichTextDrawingContext& context, int flags, wxPoint position, wxArrayInt* partialExtents) const
1475 {
1476     if (!range.IsWithin(GetRange()))
1477         return false;
1478
1479     wxSize sz;
1480
1481     wxArrayInt childExtents;
1482     wxArrayInt* p;
1483     if (partialExtents)
1484         p = & childExtents;
1485     else
1486         p = NULL;
1487
1488     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1489     while (node)
1490     {
1491         wxRichTextObject* child = node->GetData();
1492         if (!child->GetRange().IsOutside(range))
1493         {
1494             // Floating objects have a zero size within the paragraph.
1495             if (child->IsFloating())
1496             {
1497                 if (partialExtents)
1498                 {
1499                     int lastSize;
1500                     if (partialExtents->GetCount() > 0)
1501                         lastSize = (*partialExtents)[partialExtents->GetCount()-1];
1502                     else
1503                         lastSize = 0;
1504
1505                     partialExtents->Add(0 /* zero size */ + lastSize);
1506                 }
1507             }
1508             else
1509             {
1510                 wxSize childSize;
1511
1512                 wxRichTextRange rangeToUse = range;
1513                 rangeToUse.LimitTo(child->GetRange());
1514                 if (child->IsTopLevel())
1515                     rangeToUse = child->GetOwnRange();
1516
1517                 int childDescent = 0;
1518
1519                 // At present wxRICHTEXT_HEIGHT_ONLY is only fast if we're already cached the size,
1520                 // but it's only going to be used after caching has taken place.
1521                 if ((flags & wxRICHTEXT_HEIGHT_ONLY) && child->GetCachedSize().y != 0)
1522                 {
1523                     childDescent = child->GetDescent();
1524                     childSize = child->GetCachedSize();
1525
1526                     sz.y = wxMax(sz.y, childSize.y);
1527                     sz.x += childSize.x;
1528                     descent = wxMax(descent, childDescent);
1529                 }
1530                 else if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, context, flags, wxPoint(position.x + sz.x, position.y), p))
1531                 {
1532                     sz.y = wxMax(sz.y, childSize.y);
1533                     sz.x += childSize.x;
1534                     descent = wxMax(descent, childDescent);
1535
1536                     if ((flags & wxRICHTEXT_CACHE_SIZE) && (rangeToUse == child->GetRange() || child->IsTopLevel()))
1537                     {
1538                         child->SetCachedSize(childSize);
1539                         child->SetDescent(childDescent);
1540                     }
1541
1542                     if (partialExtents)
1543                     {
1544                         int lastSize;
1545                         if (partialExtents->GetCount() > 0)
1546                             lastSize = (*partialExtents)[partialExtents->GetCount()-1];
1547                         else
1548                             lastSize = 0;
1549
1550                         size_t i;
1551                         for (i = 0; i < childExtents.GetCount(); i++)
1552                         {
1553                             partialExtents->Add(childExtents[i] + lastSize);
1554                         }
1555                     }
1556                 }
1557             }
1558
1559             if (p)
1560                 p->Clear();
1561         }
1562
1563         node = node->GetNext();
1564     }
1565     size = sz;
1566     return true;
1567 }
1568
1569 // Invalidate the buffer. With no argument, invalidates whole buffer.
1570 void wxRichTextCompositeObject::Invalidate(const wxRichTextRange& invalidRange)
1571 {
1572     wxRichTextObject::Invalidate(invalidRange);
1573
1574     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1575     while (node)
1576     {
1577         wxRichTextObject* child = node->GetData();
1578         if (invalidRange != wxRICHTEXT_ALL && invalidRange != wxRICHTEXT_NONE && child->GetRange().IsOutside(invalidRange))
1579         {
1580             // Skip
1581         }
1582         else if (child->IsTopLevel())
1583         {
1584             if (invalidRange == wxRICHTEXT_NONE)
1585                 child->Invalidate(wxRICHTEXT_NONE);
1586             else
1587                 child->Invalidate(wxRICHTEXT_ALL); // All children must be invalidated if within parent range
1588         }
1589         else
1590             child->Invalidate(invalidRange);
1591         node = node->GetNext();
1592     }
1593 }
1594
1595 // Move the object recursively, by adding the offset from old to new
1596 void wxRichTextCompositeObject::Move(const wxPoint& pt)
1597 {
1598     wxPoint oldPos = GetPosition();
1599     SetPosition(pt);
1600     wxPoint offset = pt - oldPos;
1601
1602     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1603     while (node)
1604     {
1605         wxRichTextObject* child = node->GetData();
1606         wxPoint childPos = child->GetPosition() + offset;
1607         child->Move(childPos);
1608         node = node->GetNext();
1609     }
1610 }
1611
1612
1613 /*!
1614  * wxRichTextParagraphLayoutBox
1615  * This box knows how to lay out paragraphs.
1616  */
1617
1618 IMPLEMENT_DYNAMIC_CLASS(wxRichTextParagraphLayoutBox, wxRichTextCompositeObject)
1619
1620 wxRichTextParagraphLayoutBox::wxRichTextParagraphLayoutBox(wxRichTextObject* parent):
1621     wxRichTextCompositeObject(parent)
1622 {
1623     Init();
1624 }
1625
1626 wxRichTextParagraphLayoutBox::~wxRichTextParagraphLayoutBox()
1627 {
1628     if (m_floatCollector)
1629     {
1630         delete m_floatCollector;
1631         m_floatCollector = NULL;
1632     }
1633 }
1634
1635 /// Initialize the object.
1636 void wxRichTextParagraphLayoutBox::Init()
1637 {
1638     m_ctrl = NULL;
1639
1640     // For now, assume is the only box and has no initial size.
1641     m_range = wxRichTextRange(0, -1);
1642     m_ownRange = wxRichTextRange(0, -1);
1643
1644     m_invalidRange = wxRICHTEXT_ALL;
1645
1646     m_partialParagraph = false;
1647     m_floatCollector = NULL;
1648 }
1649
1650 void wxRichTextParagraphLayoutBox::Clear()
1651 {
1652     DeleteChildren();
1653
1654     if (m_floatCollector)
1655         delete m_floatCollector;
1656     m_floatCollector = NULL;
1657     m_partialParagraph = false;
1658 }
1659
1660 /// Copy
1661 void wxRichTextParagraphLayoutBox::Copy(const wxRichTextParagraphLayoutBox& obj)
1662 {
1663     Clear();
1664
1665     wxRichTextCompositeObject::Copy(obj);
1666
1667     m_partialParagraph = obj.m_partialParagraph;
1668     m_defaultAttributes = obj.m_defaultAttributes;
1669 }
1670
1671 // Gather information about floating objects; only gather floats for those paragraphs that
1672 // will not be formatted again due to optimization, after which floats will be gathered per-paragraph
1673 // during layout.
1674 bool wxRichTextParagraphLayoutBox::UpdateFloatingObjects(const wxRect& availableRect, wxRichTextObject* untilObj)
1675 {
1676     if (m_floatCollector != NULL)
1677         delete m_floatCollector;
1678     m_floatCollector = new wxRichTextFloatCollector(availableRect);
1679     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1680     // Only gather floats up to the point we'll start formatting paragraphs.
1681     while (untilObj && node && node->GetData() != untilObj)
1682     {
1683         wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
1684         wxASSERT (child != NULL);
1685         if (child)
1686             m_floatCollector->CollectFloat(child);
1687         node = node->GetNext();
1688     }
1689
1690     return true;
1691 }
1692
1693 // Returns the style sheet associated with the overall buffer.
1694 wxRichTextStyleSheet* wxRichTextParagraphLayoutBox::GetStyleSheet() const
1695 {
1696     return GetBuffer() ? GetBuffer()->GetStyleSheet() : (wxRichTextStyleSheet*) NULL;
1697 }
1698
1699 // Get the number of floating objects at this level
1700 int wxRichTextParagraphLayoutBox::GetFloatingObjectCount() const
1701 {
1702     if (m_floatCollector)
1703         return m_floatCollector->GetFloatingObjectCount();
1704     else
1705         return 0;
1706 }
1707
1708 // Get a list of floating objects
1709 bool wxRichTextParagraphLayoutBox::GetFloatingObjects(wxRichTextObjectList& objects) const
1710 {
1711     if (m_floatCollector)
1712     {
1713         return m_floatCollector->GetFloatingObjects(objects);
1714     }
1715     else
1716         return false;
1717 }
1718
1719 // Calculate ranges
1720 void wxRichTextParagraphLayoutBox::UpdateRanges()
1721 {
1722     long start = 0;
1723     if (GetParent())
1724         start = GetRange().GetStart();
1725     long end;
1726     CalculateRange(start, end);
1727 }
1728
1729 // HitTest
1730 int wxRichTextParagraphLayoutBox::HitTest(wxDC& dc, wxRichTextDrawingContext& context, const wxPoint& pt, long& textPosition, wxRichTextObject** obj, wxRichTextObject** contextObj, int flags)
1731 {
1732     if (!IsShown())
1733         return wxRICHTEXT_HITTEST_NONE;
1734
1735     int ret = wxRICHTEXT_HITTEST_NONE;
1736     if (m_floatCollector && (flags & wxRICHTEXT_HITTEST_NO_FLOATING_OBJECTS) == 0)
1737         ret = m_floatCollector->HitTest(dc, context, pt, textPosition, obj, flags);
1738
1739     if (ret == wxRICHTEXT_HITTEST_NONE)
1740         return wxRichTextCompositeObject::HitTest(dc, context, pt, textPosition, obj, contextObj, flags);
1741     else
1742     {
1743         *contextObj = this;
1744         return ret;
1745     }
1746 }
1747
1748 /// Draw the floating objects
1749 void wxRichTextParagraphLayoutBox::DrawFloats(wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& range, const wxRichTextSelection& selection, const wxRect& rect, int descent, int style)
1750 {
1751     if (m_floatCollector)
1752         m_floatCollector->Draw(dc, context, range, selection, rect, descent, style);
1753 }
1754
1755 void wxRichTextParagraphLayoutBox::MoveAnchoredObjectToParagraph(wxRichTextParagraph* from, wxRichTextParagraph* to, wxRichTextObject* obj)
1756 {
1757     if (from == to)
1758         return;
1759
1760     from->RemoveChild(obj);
1761     to->AppendChild(obj);
1762 }
1763
1764 /// Draw the item
1765 bool wxRichTextParagraphLayoutBox::Draw(wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& range, const wxRichTextSelection& selection, const wxRect& rect, int descent, int style)
1766 {
1767     if (!IsShown())
1768         return true;
1769
1770     wxRect thisRect(GetPosition(), GetCachedSize());
1771
1772     wxRichTextAttr attr(GetAttributes());
1773     context.ApplyVirtualAttributes(attr, this);
1774
1775     int flags = style;
1776     if (selection.IsValid() && GetParentContainer() != this && selection.WithinSelection(GetRange().GetStart(), GetParentContainer()))
1777         flags |= wxRICHTEXT_DRAW_SELECTED;
1778
1779     // Don't draw guidelines if at top level
1780     int theseFlags = flags;
1781     if (!GetParent())
1782         theseFlags &= ~wxRICHTEXT_DRAW_GUIDELINES;
1783     DrawBoxAttributes(dc, GetBuffer(), attr, thisRect, theseFlags);
1784
1785     DrawFloats(dc, context, range, selection, rect, descent, style);
1786     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1787     while (node)
1788     {
1789         wxRichTextObject* child = node->GetData();
1790
1791         if (child && !child->GetRange().IsOutside(range))
1792         {
1793             wxRect childRect(child->GetPosition(), child->GetCachedSize());
1794             wxRichTextRange childRange = range;
1795             if (child->IsTopLevel())
1796             {
1797                 childRange = child->GetOwnRange();
1798             }
1799
1800             if (((style & wxRICHTEXT_DRAW_IGNORE_CACHE) == 0) && childRect.GetTop() > rect.GetBottom())
1801             {
1802                 // Stop drawing
1803                 break;
1804             }
1805             else if (((style & wxRICHTEXT_DRAW_IGNORE_CACHE) == 0) && childRect.GetBottom() < rect.GetTop())
1806             {
1807                 // Skip
1808             }
1809             else
1810                 child->Draw(dc, context, childRange, selection, rect, descent, style);
1811         }
1812
1813         node = node->GetNext();
1814     }
1815     return true;
1816 }
1817
1818 /// Lay the item out
1819 bool wxRichTextParagraphLayoutBox::Layout(wxDC& dc, wxRichTextDrawingContext& context, const wxRect& rect, const wxRect& parentRect, int style)
1820 {
1821     SetPosition(rect.GetPosition());
1822
1823     if (!IsShown())
1824         return true;
1825
1826     wxRect availableSpace;
1827     bool formatRect = (style & wxRICHTEXT_LAYOUT_SPECIFIED_RECT) == wxRICHTEXT_LAYOUT_SPECIFIED_RECT;
1828
1829     wxRichTextAttr attr(GetAttributes());
1830     context.ApplyVirtualAttributes(attr, this);
1831
1832     // If only laying out a specific area, the passed rect has a different meaning:
1833     // the visible part of the buffer. This is used in wxRichTextCtrl::OnSize,
1834     // so that during a size, only the visible part will be relaid out, or
1835     // it would take too long causing flicker. As an approximation, we assume that
1836     // everything up to the start of the visible area is laid out correctly.
1837     if (formatRect)
1838     {
1839         wxRect rect2(0, 0, rect.width, rect.height);
1840         availableSpace = GetAvailableContentArea(dc, context, rect2);
1841
1842         // Invalidate the part of the buffer from the first visible line
1843         // to the end. If other parts of the buffer are currently invalid,
1844         // then they too will be taken into account if they are above
1845         // the visible point.
1846         long startPos = 0;
1847         wxRichTextLine* line = GetLineAtYPosition(rect.y);
1848         if (line)
1849             startPos = line->GetAbsoluteRange().GetStart();
1850
1851         Invalidate(wxRichTextRange(startPos, GetOwnRange().GetEnd()));
1852     }
1853     else
1854     {
1855         availableSpace = GetAvailableContentArea(dc, context, rect);
1856     }
1857
1858     // Fix the width if we're at the top level
1859     if (!GetParent())
1860         attr.GetTextBoxAttr().GetWidth().SetValue(rect.GetWidth(), wxTEXT_ATTR_UNITS_PIXELS);
1861
1862     int leftMargin, rightMargin, topMargin, bottomMargin;
1863     wxRichTextObject::GetTotalMargin(dc, GetBuffer(), attr, leftMargin, rightMargin,
1864             topMargin, bottomMargin);
1865
1866     int maxWidth = 0;
1867     int maxHeight = 0;
1868
1869     // The maximum paragraph maximum width, so we can set the overall maximum width for this object
1870     int maxMaxWidth = 0;
1871
1872     // The maximum paragraph minimum width, so we can set the overall minimum width for this object
1873     int maxMinWidth = 0;
1874
1875     // If we have vertical alignment, we must recalculate everything.
1876     bool hasVerticalAlignment = (attr.GetTextBoxAttr().HasVerticalAlignment() &&
1877         (attr.GetTextBoxAttr().GetVerticalAlignment() > wxTEXT_BOX_ATTR_VERTICAL_ALIGNMENT_TOP));
1878
1879     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
1880
1881     bool layoutAll = true;
1882
1883     // Get invalid range, rounding to paragraph start/end.
1884     wxRichTextRange invalidRange = GetInvalidRange(true);
1885
1886     if (invalidRange == wxRICHTEXT_NONE && !formatRect)
1887         return true;
1888
1889     if (invalidRange == wxRICHTEXT_ALL || hasVerticalAlignment)
1890         layoutAll = true;
1891     else    // If we know what range is affected, start laying out from that point on.
1892         if (invalidRange.GetStart() >= GetOwnRange().GetStart())
1893     {
1894         wxRichTextParagraph* firstParagraph = GetParagraphAtPosition(invalidRange.GetStart());
1895         if (firstParagraph)
1896         {
1897             wxRichTextObjectList::compatibility_iterator firstNode = m_children.Find(firstParagraph);
1898             wxRichTextObjectList::compatibility_iterator previousNode;
1899             if ( firstNode )
1900                 previousNode = firstNode->GetPrevious();
1901             if (firstNode)
1902             {
1903                 if (previousNode)
1904                 {
1905                     wxRichTextParagraph* previousParagraph = wxDynamicCast(previousNode->GetData(), wxRichTextParagraph);
1906                     availableSpace.y = previousParagraph->GetPosition().y + previousParagraph->GetCachedSize().y;
1907                 }
1908
1909                 // Now we're going to start iterating from the first affected paragraph.
1910                 node = firstNode;
1911
1912                 layoutAll = false;
1913             }
1914         }
1915     }
1916
1917     // Gather information about only those floating objects that will not be formatted,
1918     // after which floats will be gathered per-paragraph during layout.
1919     UpdateFloatingObjects(availableSpace, node ? node->GetData() : (wxRichTextObject*) NULL);
1920
1921     // A way to force speedy rest-of-buffer layout (the 'else' below)
1922     bool forceQuickLayout = false;
1923
1924     // First get the size of the paragraphs we won't be laying out
1925     wxRichTextObjectList::compatibility_iterator n = m_children.GetFirst();
1926     while (n && n != node)
1927     {
1928         wxRichTextParagraph* child = wxDynamicCast(n->GetData(), wxRichTextParagraph);
1929         if (child)
1930         {
1931             maxWidth = wxMax(maxWidth, child->GetCachedSize().x);
1932             maxMinWidth = wxMax(maxMinWidth, child->GetMinSize().x);
1933             maxMaxWidth = wxMax(maxMaxWidth, child->GetMaxSize().x);
1934         }
1935         n = n->GetNext();
1936     }
1937
1938     while (node)
1939     {
1940         // Assume this box only contains paragraphs
1941
1942         wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
1943         // Unsure if this is needed
1944         // wxCHECK_MSG( child, false, wxT("Unknown object in layout") );
1945
1946         if (child && child->IsShown())
1947         {
1948             // TODO: what if the child hasn't been laid out (e.g. involved in Undo) but still has 'old' lines
1949             if ( !forceQuickLayout &&
1950                     (layoutAll ||
1951                         child->GetLines().IsEmpty() ||
1952                             !child->GetRange().IsOutside(invalidRange)) )
1953             {
1954                 // Lays out the object first with a given amount of space, and then if no width was specified in attr,
1955                 // lays out the object again using the minimum size
1956                 child->LayoutToBestSize(dc, context, GetBuffer(),
1957                         attr, child->GetAttributes(), availableSpace, rect, style&~wxRICHTEXT_LAYOUT_SPECIFIED_RECT);
1958
1959                 // Layout must set the cached size
1960                 availableSpace.y += child->GetCachedSize().y;
1961                 maxWidth = wxMax(maxWidth, child->GetCachedSize().x);
1962                 maxMinWidth = wxMax(maxMinWidth, child->GetMinSize().x);
1963                 maxMaxWidth = wxMax(maxMaxWidth, child->GetMaxSize().x);
1964
1965                 // If we're just formatting the visible part of the buffer,
1966                 // and we're now past the bottom of the window, and we don't have any
1967                 // floating objects (since they may cause wrapping to change for the rest of the
1968                 // the buffer), start quick layout.
1969                 if (!hasVerticalAlignment && formatRect && child->GetPosition().y > rect.GetBottom() && GetFloatingObjectCount() == 0)
1970                     forceQuickLayout = true;
1971             }
1972             else
1973             {
1974                 // We're outside the immediately affected range, so now let's just
1975                 // move everything up or down. This assumes that all the children have previously
1976                 // been laid out and have wrapped line lists associated with them.
1977                 // TODO: check all paragraphs before the affected range.
1978
1979                 int inc = availableSpace.y - child->GetPosition().y;
1980
1981                 while (node)
1982                 {
1983                     wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
1984                     if (child)
1985                     {
1986                         if (child->GetLines().GetCount() == 0)
1987                         {
1988                             // Lays out the object first with a given amount of space, and then if no width was specified in attr,
1989                             // lays out the object again using the minimum size
1990                             child->LayoutToBestSize(dc, context, GetBuffer(),
1991                                         attr, child->GetAttributes(), availableSpace, rect, style&~wxRICHTEXT_LAYOUT_SPECIFIED_RECT);
1992
1993                             //child->Layout(dc, availableChildRect, style);
1994                         }
1995                         else
1996                             child->Move(wxPoint(child->GetPosition().x, child->GetPosition().y + inc));
1997
1998                         availableSpace.y += child->GetCachedSize().y;
1999                         maxWidth = wxMax(maxWidth, child->GetCachedSize().x);
2000                         maxMinWidth = wxMax(maxMinWidth, child->GetMinSize().x);
2001                         maxMaxWidth = wxMax(maxMaxWidth, child->GetMaxSize().x);
2002                     }
2003
2004                     node = node->GetNext();
2005                 }
2006                 break;
2007             }
2008         }
2009
2010         node = node->GetNext();
2011     }
2012
2013     node = m_children.GetLast();
2014     if (node && node->GetData()->IsShown())
2015     {
2016         wxRichTextObject* child = node->GetData();
2017         maxHeight = child->GetPosition().y - (GetPosition().y + topMargin) + child->GetCachedSize().y;
2018     }
2019     else
2020         maxHeight = 0; // topMargin + bottomMargin;
2021
2022     // Check the bottom edge of any floating object
2023     if (GetFloatCollector() && GetFloatCollector()->HasFloats())
2024     {
2025         int bottom = GetFloatCollector()->GetLastRectBottom();
2026         if (bottom > maxHeight)
2027             maxHeight = bottom;
2028     }
2029
2030     if (attr.GetTextBoxAttr().GetSize().GetWidth().IsValid())
2031     {
2032         wxRect r = AdjustAvailableSpace(dc, GetBuffer(), wxRichTextAttr() /* not used */, attr, parentRect, parentRect);
2033         int w = r.GetWidth();
2034
2035         // Convert external to content rect
2036         w = w - leftMargin - rightMargin;
2037         maxWidth = wxMax(maxWidth, w);
2038         maxMaxWidth = wxMax(maxMaxWidth, w);
2039     }
2040     else
2041     {
2042         // TODO: Make sure the layout box's position reflects
2043         // the position of the children, but without
2044         // breaking layout of a box within a paragraph.
2045     }
2046
2047     // TODO: (also in para layout) should set the
2048     // object's size to an absolute one if specified,
2049     // but if not specified, calculate it from content.
2050
2051     // We need to add back the margins etc.
2052     {
2053         wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
2054         contentRect = wxRect(wxPoint(0, 0), wxSize(maxWidth, maxHeight));
2055         GetBoxRects(dc, GetBuffer(), attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
2056         SetCachedSize(marginRect.GetSize());
2057     }
2058
2059     // The maximum size is the greatest of all maximum widths for all paragraphs.
2060     {
2061         wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
2062         contentRect = wxRect(wxPoint(0, 0), wxSize(maxMaxWidth, maxHeight)); // Actually max height is a lie, we can't know it
2063         GetBoxRects(dc, GetBuffer(), attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
2064         SetMaxSize(marginRect.GetSize());
2065     }
2066
2067     // The minimum size is the greatest of all minimum widths for all paragraphs.
2068     {
2069         wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
2070         contentRect = wxRect(wxPoint(0, 0), wxSize(maxMinWidth, maxHeight)); // Actually max height is a lie, we can't know it
2071         GetBoxRects(dc, GetBuffer(), attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
2072         SetMinSize(marginRect.GetSize());
2073     }
2074
2075     if (attr.GetTextBoxAttr().HasVerticalAlignment() &&
2076         (attr.GetTextBoxAttr().GetVerticalAlignment() > wxTEXT_BOX_ATTR_VERTICAL_ALIGNMENT_TOP))
2077     {
2078         int yOffset = 0;
2079         int leftOverSpace = availableSpace.height - topMargin - bottomMargin - maxHeight;
2080         if (leftOverSpace > 0)
2081         {
2082             if (attr.GetTextBoxAttr().GetVerticalAlignment() == wxTEXT_BOX_ATTR_VERTICAL_ALIGNMENT_CENTRE)
2083             {
2084                 yOffset = (leftOverSpace/2);
2085             }
2086             else if (attr.GetTextBoxAttr().GetVerticalAlignment() == wxTEXT_BOX_ATTR_VERTICAL_ALIGNMENT_BOTTOM)
2087             {
2088                 yOffset = leftOverSpace;
2089             }
2090         }
2091
2092         // Move all the children to vertically align the content
2093         // This doesn't take into account floating objects, unfortunately.
2094         if (yOffset != 0)
2095         {
2096             wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
2097             while (node)
2098             {
2099                 wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
2100                 if (child)
2101                     child->Move(wxPoint(child->GetPosition().x, child->GetPosition().y + yOffset));
2102
2103                 node = node->GetNext();
2104             }
2105         }
2106     }
2107
2108     m_invalidRange = wxRICHTEXT_NONE;
2109
2110     return true;
2111 }
2112
2113 /// Get/set the size for the given range.
2114 bool wxRichTextParagraphLayoutBox::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, wxRichTextDrawingContext& context, int flags, wxPoint position, wxArrayInt* WXUNUSED(partialExtents)) const
2115 {
2116     wxSize sz;
2117
2118     wxRichTextObjectList::compatibility_iterator startPara = wxRichTextObjectList::compatibility_iterator();
2119     wxRichTextObjectList::compatibility_iterator endPara = wxRichTextObjectList::compatibility_iterator();
2120
2121     // First find the first paragraph whose starting position is within the range.
2122     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
2123     while (node)
2124     {
2125         // child is a paragraph
2126         wxRichTextObject* child = node->GetData();
2127         const wxRichTextRange& r = child->GetRange();
2128
2129         if (r.GetStart() <= range.GetStart() && r.GetEnd() >= range.GetStart())
2130         {
2131             startPara = node;
2132             break;
2133         }
2134
2135         node = node->GetNext();
2136     }
2137
2138     // Next find the last paragraph containing part of the range
2139     node = m_children.GetFirst();
2140     while (node)
2141     {
2142         // child is a paragraph
2143         wxRichTextObject* child = node->GetData();
2144         const wxRichTextRange& r = child->GetRange();
2145
2146         if (r.GetStart() <= range.GetEnd() && r.GetEnd() >= range.GetEnd())
2147         {
2148             endPara = node;
2149             break;
2150         }
2151
2152         node = node->GetNext();
2153     }
2154
2155     if (!startPara || !endPara)
2156         return false;
2157
2158     // Now we can add up the sizes
2159     for (node = startPara; node ; node = node->GetNext())
2160     {
2161         // child is a paragraph
2162         wxRichTextObject* child = node->GetData();
2163         const wxRichTextRange& childRange = child->GetRange();
2164         wxRichTextRange rangeToFind = range;
2165         rangeToFind.LimitTo(childRange);
2166
2167         if (child->IsTopLevel())
2168             rangeToFind = child->GetOwnRange();
2169
2170         wxSize childSize;
2171
2172         int childDescent = 0;
2173         child->GetRangeSize(rangeToFind, childSize, childDescent, dc, context, flags, position);
2174
2175         descent = wxMax(childDescent, descent);
2176
2177         sz.x = wxMax(sz.x, childSize.x);
2178         sz.y += childSize.y;
2179
2180         if (node == endPara)
2181             break;
2182     }
2183
2184     size = sz;
2185
2186     return true;
2187 }
2188
2189 /// Get the paragraph at the given position
2190 wxRichTextParagraph* wxRichTextParagraphLayoutBox::GetParagraphAtPosition(long pos, bool caretPosition) const
2191 {
2192     if (caretPosition)
2193         pos ++;
2194
2195     // First find the first paragraph whose starting position is within the range.
2196     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
2197     while (node)
2198     {
2199         // child is a paragraph
2200         wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
2201         // wxASSERT (child != NULL);
2202
2203         if (child)
2204         {
2205             // Return first child in buffer if position is -1
2206             // if (pos == -1)
2207             //    return child;
2208
2209             if (child->GetRange().Contains(pos))
2210                 return child;
2211         }
2212
2213         node = node->GetNext();
2214     }
2215     return NULL;
2216 }
2217
2218 /// Get the line at the given position
2219 wxRichTextLine* wxRichTextParagraphLayoutBox::GetLineAtPosition(long pos, bool caretPosition) const
2220 {
2221     if (caretPosition)
2222         pos ++;
2223
2224     // First find the first paragraph whose starting position is within the range.
2225     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
2226     while (node)
2227     {
2228         wxRichTextObject* obj = (wxRichTextObject*) node->GetData();
2229         if (obj->GetRange().Contains(pos))
2230         {
2231             // child is a paragraph
2232             wxRichTextParagraph* child = wxDynamicCast(obj, wxRichTextParagraph);
2233             // wxASSERT (child != NULL);
2234
2235             if (child)
2236             {
2237                 wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
2238                 while (node2)
2239                 {
2240                     wxRichTextLine* line = node2->GetData();
2241
2242                     wxRichTextRange range = line->GetAbsoluteRange();
2243
2244                     if (range.Contains(pos) ||
2245
2246                         // If the position is end-of-paragraph, then return the last line of
2247                         // of the paragraph.
2248                         ((range.GetEnd() == child->GetRange().GetEnd()-1) && (pos == child->GetRange().GetEnd())))
2249                         return line;
2250
2251                     node2 = node2->GetNext();
2252                 }
2253             }
2254         }
2255
2256         node = node->GetNext();
2257     }
2258
2259     int lineCount = GetLineCount();
2260     if (lineCount > 0)
2261         return GetLineForVisibleLineNumber(lineCount-1);
2262     else
2263         return NULL;
2264 }
2265
2266 /// Get the line at the given y pixel position, or the last line.
2267 wxRichTextLine* wxRichTextParagraphLayoutBox::GetLineAtYPosition(int y) const
2268 {
2269     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
2270     while (node)
2271     {
2272         wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
2273         // wxASSERT (child != NULL);
2274
2275         if (child)
2276         {
2277             wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
2278             while (node2)
2279             {
2280                 wxRichTextLine* line = node2->GetData();
2281
2282                 wxRect rect(line->GetRect());
2283
2284                 if (y <= rect.GetBottom())
2285                     return line;
2286
2287                 node2 = node2->GetNext();
2288             }
2289         }
2290
2291         node = node->GetNext();
2292     }
2293
2294     // Return last line
2295     int lineCount = GetLineCount();
2296     if (lineCount > 0)
2297         return GetLineForVisibleLineNumber(lineCount-1);
2298     else
2299         return NULL;
2300 }
2301
2302 /// Get the number of visible lines
2303 int wxRichTextParagraphLayoutBox::GetLineCount() const
2304 {
2305     int count = 0;
2306
2307     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
2308     while (node)
2309     {
2310         wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
2311         // wxASSERT (child != NULL);
2312
2313         if (child)
2314             count += child->GetLines().GetCount();
2315
2316         node = node->GetNext();
2317     }
2318     return count;
2319 }
2320
2321
2322 /// Get the paragraph for a given line
2323 wxRichTextParagraph* wxRichTextParagraphLayoutBox::GetParagraphForLine(wxRichTextLine* line) const
2324 {
2325     return GetParagraphAtPosition(line->GetAbsoluteRange().GetStart());
2326 }
2327
2328 /// Get the line size at the given position
2329 wxSize wxRichTextParagraphLayoutBox::GetLineSizeAtPosition(long pos, bool caretPosition) const
2330 {
2331     wxRichTextLine* line = GetLineAtPosition(pos, caretPosition);
2332     if (line)
2333     {
2334         return line->GetSize();
2335     }
2336     else
2337         return wxSize(0, 0);
2338 }
2339
2340
2341 /// Convenience function to add a paragraph of text
2342 wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraph(const wxString& text, wxRichTextAttr* paraStyle)
2343 {
2344     // Don't use the base style, just the default style, and the base style will
2345     // be combined at display time.
2346     // Divide into paragraph and character styles.
2347
2348     wxRichTextAttr defaultCharStyle;
2349     wxRichTextAttr defaultParaStyle;
2350
2351     // If the default style is a named paragraph style, don't apply any character formatting
2352     // to the initial text string.
2353     if (GetDefaultStyle().HasParagraphStyleName() && GetStyleSheet())
2354     {
2355         wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->FindParagraphStyle(GetDefaultStyle().GetParagraphStyleName());
2356         if (def)
2357             defaultParaStyle = def->GetStyleMergedWithBase(GetStyleSheet());
2358     }
2359     else
2360         wxRichTextSplitParaCharStyles(GetDefaultStyle(), defaultParaStyle, defaultCharStyle);
2361
2362     wxRichTextAttr* pStyle = paraStyle ? paraStyle : (wxRichTextAttr*) & defaultParaStyle;
2363     wxRichTextAttr* cStyle = & defaultCharStyle;
2364
2365     wxRichTextParagraph* para = new wxRichTextParagraph(text, this, pStyle, cStyle);
2366     para->GetAttributes().GetTextBoxAttr().Reset();
2367
2368     AppendChild(para);
2369
2370     UpdateRanges();
2371
2372     return para->GetRange();
2373 }
2374
2375 /// Adds multiple paragraphs, based on newlines.
2376 wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraphs(const wxString& text, wxRichTextAttr* paraStyle)
2377 {
2378     // Don't use the base style, just the default style, and the base style will
2379     // be combined at display time.
2380     // Divide into paragraph and character styles.
2381
2382     wxRichTextAttr defaultCharStyle;
2383     wxRichTextAttr defaultParaStyle;
2384
2385     // If the default style is a named paragraph style, don't apply any character formatting
2386     // to the initial text string.
2387     if (GetDefaultStyle().HasParagraphStyleName() && GetStyleSheet())
2388     {
2389         wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->FindParagraphStyle(GetDefaultStyle().GetParagraphStyleName());
2390         if (def)
2391             defaultParaStyle = def->GetStyleMergedWithBase(GetStyleSheet());
2392     }
2393     else
2394         wxRichTextSplitParaCharStyles(GetDefaultStyle(), defaultParaStyle, defaultCharStyle);
2395
2396     wxRichTextAttr* pStyle = paraStyle ? paraStyle : (wxRichTextAttr*) & defaultParaStyle;
2397     wxRichTextAttr* cStyle = & defaultCharStyle;
2398
2399     wxRichTextParagraph* firstPara = NULL;
2400     wxRichTextParagraph* lastPara = NULL;
2401
2402     wxRichTextRange range(-1, -1);
2403
2404     size_t i = 0;
2405     size_t len = text.length();
2406     wxString line;
2407     wxRichTextParagraph* para = new wxRichTextParagraph(wxEmptyString, this, pStyle, cStyle);
2408     para->GetAttributes().GetTextBoxAttr().Reset();
2409
2410     AppendChild(para);
2411
2412     firstPara = para;
2413     lastPara = para;
2414
2415     while (i < len)
2416     {
2417         wxChar ch = text[i];
2418         if (ch == wxT('\n') || ch == wxT('\r'))
2419         {
2420             if (i != (len-1))
2421             {
2422                 wxRichTextPlainText* plainText = (wxRichTextPlainText*) para->GetChildren().GetFirst()->GetData();
2423                 plainText->SetText(line);
2424
2425                 para = new wxRichTextParagraph(wxEmptyString, this, pStyle, cStyle);
2426                 para->GetAttributes().GetTextBoxAttr().Reset();
2427
2428                 AppendChild(para);
2429
2430                 lastPara = para;
2431                 line = wxEmptyString;
2432             }
2433         }
2434         else
2435             line += ch;
2436
2437         i ++;
2438     }
2439
2440     if (!line.empty())
2441     {
2442         wxRichTextPlainText* plainText = (wxRichTextPlainText*) para->GetChildren().GetFirst()->GetData();
2443         plainText->SetText(line);
2444     }
2445
2446     UpdateRanges();
2447
2448     return wxRichTextRange(firstPara->GetRange().GetStart(), lastPara->GetRange().GetEnd());
2449 }
2450
2451 /// Convenience function to add an image
2452 wxRichTextRange wxRichTextParagraphLayoutBox::AddImage(const wxImage& image, wxRichTextAttr* paraStyle)
2453 {
2454     // Don't use the base style, just the default style, and the base style will
2455     // be combined at display time.
2456     // Divide into paragraph and character styles.
2457
2458     wxRichTextAttr defaultCharStyle;
2459     wxRichTextAttr defaultParaStyle;
2460
2461     // If the default style is a named paragraph style, don't apply any character formatting
2462     // to the initial text string.
2463     if (GetDefaultStyle().HasParagraphStyleName() && GetStyleSheet())
2464     {
2465         wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->FindParagraphStyle(GetDefaultStyle().GetParagraphStyleName());
2466         if (def)
2467             defaultParaStyle = def->GetStyleMergedWithBase(GetStyleSheet());
2468     }
2469     else
2470         wxRichTextSplitParaCharStyles(GetDefaultStyle(), defaultParaStyle, defaultCharStyle);
2471
2472     wxRichTextAttr* pStyle = paraStyle ? paraStyle : (wxRichTextAttr*) & defaultParaStyle;
2473     wxRichTextAttr* cStyle = & defaultCharStyle;
2474
2475     wxRichTextParagraph* para = new wxRichTextParagraph(this, pStyle);
2476     para->GetAttributes().GetTextBoxAttr().Reset();
2477     AppendChild(para);
2478     para->AppendChild(new wxRichTextImage(image, this, cStyle));
2479
2480     UpdateRanges();
2481
2482     return para->GetRange();
2483 }
2484
2485
2486 /// Insert fragment into this box at the given position. If partialParagraph is true,
2487 /// it is assumed that the last (or only) paragraph is just a piece of data with no paragraph
2488 /// marker.
2489
2490 bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParagraphLayoutBox& fragment)
2491 {
2492     // First, find the first paragraph whose starting position is within the range.
2493     wxRichTextParagraph* para = GetParagraphAtPosition(position);
2494     if (para)
2495     {
2496         wxRichTextAttr originalAttr = para->GetAttributes();
2497
2498         wxRichTextObjectList::compatibility_iterator node = m_children.Find(para);
2499
2500         // Now split at this position, returning the object to insert the new
2501         // ones in front of.
2502         wxRichTextObject* nextObject = para->SplitAt(position);
2503
2504         // Special case: partial paragraph, just one paragraph. Might be a small amount of
2505         // text, for example, so let's optimize.
2506
2507         if (fragment.GetPartialParagraph() && fragment.GetChildren().GetCount() == 1)
2508         {
2509             // Add the first para to this para...
2510             wxRichTextObjectList::compatibility_iterator firstParaNode = fragment.GetChildren().GetFirst();
2511             if (!firstParaNode)
2512                 return false;
2513
2514             // Iterate through the fragment paragraph inserting the content into this paragraph.
2515             wxRichTextParagraph* firstPara = wxDynamicCast(firstParaNode->GetData(), wxRichTextParagraph);
2516             wxASSERT (firstPara != NULL);
2517
2518             wxRichTextObjectList::compatibility_iterator objectNode = firstPara->GetChildren().GetFirst();
2519             while (objectNode)
2520             {
2521                 wxRichTextObject* newObj = objectNode->GetData()->Clone();
2522
2523                 if (!nextObject)
2524                 {
2525                     // Append
2526                     para->AppendChild(newObj);
2527                 }
2528                 else
2529                 {
2530                     // Insert before nextObject
2531                     para->InsertChild(newObj, nextObject);
2532                 }
2533
2534                 objectNode = objectNode->GetNext();
2535             }
2536
2537             return true;
2538         }
2539         else
2540         {
2541             // Procedure for inserting a fragment consisting of a number of
2542             // paragraphs:
2543             //
2544             // 1. Remove and save the content that's after the insertion point, for adding
2545             //    back once we've added the fragment.
2546             // 2. Add the content from the first fragment paragraph to the current
2547             //    paragraph.
2548             // 3. Add remaining fragment paragraphs after the current paragraph.
2549             // 4. Add back the saved content from the first paragraph. If partialParagraph
2550             //    is true, add it to the last paragraph added and not a new one.
2551
2552             // 1. Remove and save objects after split point.
2553             wxList savedObjects;
2554             if (nextObject)
2555                 para->MoveToList(nextObject, savedObjects);
2556
2557             // 2. Add the content from the 1st fragment paragraph.
2558             wxRichTextObjectList::compatibility_iterator firstParaNode = fragment.GetChildren().GetFirst();
2559             if (!firstParaNode)
2560                 return false;
2561
2562             wxRichTextParagraph* firstPara = wxDynamicCast(firstParaNode->GetData(), wxRichTextParagraph);
2563             wxASSERT(firstPara != NULL);
2564
2565             if (!(fragment.GetAttributes().GetFlags() & wxTEXT_ATTR_KEEP_FIRST_PARA_STYLE))
2566                 para->SetAttributes(firstPara->GetAttributes());
2567
2568             // Save empty paragraph attributes for appending later
2569             // These are character attributes deliberately set for a new paragraph. Without this,
2570             // we couldn't pass default attributes when appending a new paragraph.
2571             wxRichTextAttr emptyParagraphAttributes;
2572
2573             wxRichTextObjectList::compatibility_iterator objectNode = firstPara->GetChildren().GetFirst();
2574
2575             if (objectNode && firstPara->GetChildren().GetCount() == 1 && objectNode->GetData()->IsEmpty())
2576                 emptyParagraphAttributes = objectNode->GetData()->GetAttributes();
2577
2578             while (objectNode)
2579             {
2580                 wxRichTextObject* newObj = objectNode->GetData()->Clone();
2581
2582                 // Append
2583                 para->AppendChild(newObj);
2584
2585                 objectNode = objectNode->GetNext();
2586             }
2587
2588             // 3. Add remaining fragment paragraphs after the current paragraph.
2589             wxRichTextObjectList::compatibility_iterator nextParagraphNode = node->GetNext();
2590             wxRichTextObject* nextParagraph = NULL;
2591             if (nextParagraphNode)
2592                 nextParagraph = nextParagraphNode->GetData();
2593
2594             wxRichTextObjectList::compatibility_iterator i = fragment.GetChildren().GetFirst()->GetNext();
2595             wxRichTextParagraph* finalPara = para;
2596
2597             bool needExtraPara = (!i || !fragment.GetPartialParagraph());
2598
2599             // If there was only one paragraph, we need to insert a new one.
2600             while (i)
2601             {
2602                 wxRichTextParagraph* para = wxDynamicCast(i->GetData(), wxRichTextParagraph);
2603                 wxASSERT( para != NULL );
2604
2605                 finalPara = (wxRichTextParagraph*) para->Clone();
2606
2607                 if (nextParagraph)
2608                     InsertChild(finalPara, nextParagraph);
2609                 else
2610                     AppendChild(finalPara);
2611
2612                 i = i->GetNext();
2613             }
2614
2615             // If there was only one paragraph, or we have full paragraphs in our fragment,
2616             // we need to insert a new one.
2617             if (needExtraPara)
2618             {
2619                 finalPara = new wxRichTextParagraph;
2620
2621                 if (nextParagraph)
2622                     InsertChild(finalPara, nextParagraph);
2623                 else
2624                     AppendChild(finalPara);
2625             }
2626
2627             // 4. Add back the remaining content.
2628             if (finalPara)
2629             {
2630                 if (nextObject)
2631                     finalPara->MoveFromList(savedObjects);
2632
2633                 // Ensure there's at least one object
2634                 if (finalPara->GetChildCount() == 0)
2635                 {
2636                     wxRichTextPlainText* text = new wxRichTextPlainText(wxEmptyString);
2637                     text->SetAttributes(emptyParagraphAttributes);
2638
2639                     finalPara->AppendChild(text);
2640                 }
2641             }
2642
2643             if ((fragment.GetAttributes().GetFlags() & wxTEXT_ATTR_KEEP_FIRST_PARA_STYLE) && firstPara)
2644                 finalPara->SetAttributes(firstPara->GetAttributes());
2645             else if (finalPara && finalPara != para)
2646                 finalPara->SetAttributes(originalAttr);
2647
2648             return true;
2649         }
2650     }
2651     else
2652     {
2653         // Append
2654         wxRichTextObjectList::compatibility_iterator i = fragment.GetChildren().GetFirst();
2655         while (i)
2656         {
2657             wxRichTextParagraph* para = wxDynamicCast(i->GetData(), wxRichTextParagraph);
2658             wxASSERT( para != NULL );
2659
2660             AppendChild(para->Clone());
2661
2662             i = i->GetNext();
2663         }
2664
2665         return true;
2666     }
2667 }
2668
2669 /// Make a copy of the fragment corresponding to the given range, putting it in 'fragment'.
2670 /// If there was an incomplete paragraph at the end, partialParagraph is set to true.
2671 bool wxRichTextParagraphLayoutBox::CopyFragment(const wxRichTextRange& range, wxRichTextParagraphLayoutBox& fragment)
2672 {
2673     wxRichTextObjectList::compatibility_iterator i = GetChildren().GetFirst();
2674     while (i)
2675     {
2676         wxRichTextParagraph* para = wxDynamicCast(i->GetData(), wxRichTextParagraph);
2677         wxASSERT( para != NULL );
2678
2679         if (!para->GetRange().IsOutside(range))
2680         {
2681             fragment.AppendChild(para->Clone());
2682         }
2683         i = i->GetNext();
2684     }
2685
2686     // Now top and tail the first and last paragraphs in our new fragment (which might be the same).
2687     if (!fragment.IsEmpty())
2688     {
2689         wxRichTextParagraph* firstPara = wxDynamicCast(fragment.GetChildren().GetFirst()->GetData(), wxRichTextParagraph);
2690         wxASSERT( firstPara != NULL );
2691
2692         wxRichTextParagraph* lastPara = wxDynamicCast(fragment.GetChildren().GetLast()->GetData(), wxRichTextParagraph);
2693         wxASSERT( lastPara != NULL );
2694
2695         if (!firstPara || !lastPara)
2696             return false;
2697
2698         bool isFragment = (range.GetEnd() < lastPara->GetRange().GetEnd());
2699
2700         long firstPos = firstPara->GetRange().GetStart();
2701
2702         // Adjust for renumbering from zero
2703         wxRichTextRange topTailRange(range.GetStart() - firstPos, range.GetEnd() - firstPos);
2704
2705         long end;
2706         fragment.CalculateRange(0, end);
2707
2708         // Chop off the start of the paragraph
2709         if (topTailRange.GetStart() > 0)
2710         {
2711             wxRichTextRange r(0, topTailRange.GetStart()-1);
2712             firstPara->DeleteRange(r);
2713
2714             // Make sure the numbering is correct
2715             fragment.CalculateRange(0, end);
2716
2717             // Now, we've deleted some positions, so adjust the range
2718             // accordingly.
2719             topTailRange.SetStart(range.GetLength());
2720             topTailRange.SetEnd(fragment.GetOwnRange().GetEnd());
2721         }
2722         else
2723         {
2724             topTailRange.SetStart(range.GetLength());
2725             topTailRange.SetEnd(fragment.GetOwnRange().GetEnd());
2726         }
2727
2728         if (topTailRange.GetStart() < lastPara->GetRange().GetEnd())
2729         {
2730             lastPara->DeleteRange(topTailRange);
2731
2732             // Make sure the numbering is correct
2733             long end;
2734             fragment.CalculateRange(0, end);
2735
2736             // We only have part of a paragraph at the end
2737             fragment.SetPartialParagraph(true);
2738         }
2739         else
2740         {
2741             // We have a partial paragraph (don't save last new paragraph marker)
2742             // or complete paragraph
2743             fragment.SetPartialParagraph(isFragment);
2744         }
2745     }
2746
2747     return true;
2748 }
2749
2750 /// Given a position, get the number of the visible line (potentially many to a paragraph),
2751 /// starting from zero at the start of the buffer.
2752 long wxRichTextParagraphLayoutBox::GetVisibleLineNumber(long pos, bool caretPosition, bool startOfLine) const
2753 {
2754     if (caretPosition)
2755         pos ++;
2756
2757     int lineCount = 0;
2758
2759     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
2760     while (node)
2761     {
2762         wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
2763         // wxASSERT( child != NULL );
2764
2765         if (child)
2766         {
2767             if (child->GetRange().Contains(pos))
2768             {
2769                 wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
2770                 while (node2)
2771                 {
2772                     wxRichTextLine* line = node2->GetData();
2773                     wxRichTextRange lineRange = line->GetAbsoluteRange();
2774
2775                     if (lineRange.Contains(pos) || pos == lineRange.GetStart())
2776                     {
2777                         // If the caret is displayed at the end of the previous wrapped line,
2778                         // we want to return the line it's _displayed_ at (not the actual line
2779                         // containing the position).
2780                         if (lineRange.GetStart() == pos && !startOfLine && child->GetRange().GetStart() != pos)
2781                             return lineCount - 1;
2782                         else
2783                             return lineCount;
2784                     }
2785
2786                     lineCount ++;
2787
2788                     node2 = node2->GetNext();
2789                 }
2790                 // If we didn't find it in the lines, it must be
2791                 // the last position of the paragraph. So return the last line.
2792                 return lineCount-1;
2793             }
2794             else
2795                 lineCount += child->GetLines().GetCount();
2796         }
2797
2798         node = node->GetNext();
2799     }
2800
2801     // Not found
2802     return -1;
2803 }
2804
2805 /// Given a line number, get the corresponding wxRichTextLine object.
2806 wxRichTextLine* wxRichTextParagraphLayoutBox::GetLineForVisibleLineNumber(long lineNumber) const
2807 {
2808     int lineCount = 0;
2809
2810     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
2811     while (node)
2812     {
2813         wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
2814         // wxASSERT(child != NULL);
2815
2816         if (child)
2817         {
2818             if (lineNumber < (int) (child->GetLines().GetCount() + lineCount))
2819             {
2820                 wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
2821                 while (node2)
2822                 {
2823                     wxRichTextLine* line = node2->GetData();
2824
2825                     if (lineCount == lineNumber)
2826                         return line;
2827
2828                     lineCount ++;
2829
2830                     node2 = node2->GetNext();
2831                 }
2832             }
2833             else
2834                 lineCount += child->GetLines().GetCount();
2835         }
2836
2837         node = node->GetNext();
2838     }
2839
2840     // Didn't find it
2841     return NULL;
2842 }
2843
2844 /// Delete range from layout.
2845 bool wxRichTextParagraphLayoutBox::DeleteRange(const wxRichTextRange& range)
2846 {
2847     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
2848
2849     wxRichTextParagraph* firstPara = NULL;
2850     while (node)
2851     {
2852         wxRichTextParagraph* obj = wxDynamicCast(node->GetData(), wxRichTextParagraph);
2853         // wxASSERT (obj != NULL);
2854
2855         wxRichTextObjectList::compatibility_iterator next = node->GetNext();
2856
2857         if (obj)
2858         {
2859             // Delete the range in each paragraph
2860
2861             if (!obj->GetRange().IsOutside(range))
2862             {
2863                 // Deletes the content of this object within the given range
2864                 obj->DeleteRange(range);
2865
2866                 wxRichTextRange thisRange = obj->GetRange();
2867                 wxRichTextAttr thisAttr = obj->GetAttributes();
2868
2869                 // If the whole paragraph is within the range to delete,
2870                 // delete the whole thing.
2871                 if (range.GetStart() <= thisRange.GetStart() && range.GetEnd() >= thisRange.GetEnd())
2872                 {
2873                     // Delete the whole object
2874                     RemoveChild(obj, true);
2875                     obj = NULL;
2876                 }
2877                 else if (!firstPara)
2878                     firstPara = obj;
2879
2880                 // If the range includes the paragraph end, we need to join this
2881                 // and the next paragraph.
2882                 if (range.GetEnd() <= thisRange.GetEnd())
2883                 {
2884                     // We need to move the objects from the next paragraph
2885                     // to this paragraph
2886
2887                     wxRichTextParagraph* nextParagraph = NULL;
2888                     if ((range.GetEnd() < thisRange.GetEnd()) && obj)
2889                         nextParagraph = obj;
2890                     else
2891                     {
2892                         // We're ending at the end of the paragraph, so merge the _next_ paragraph.
2893                         if (next)
2894                             nextParagraph = wxDynamicCast(next->GetData(), wxRichTextParagraph);
2895                     }
2896
2897                     bool applyFinalParagraphStyle = firstPara && nextParagraph && nextParagraph != firstPara;
2898
2899                     wxRichTextAttr nextParaAttr;
2900                     if (applyFinalParagraphStyle)
2901                     {
2902                         // Special case when deleting the end of a paragraph - use _this_ paragraph's style,
2903                         // not the next one.
2904                         if (range.GetStart() == range.GetEnd() && range.GetStart() == thisRange.GetEnd())
2905                             nextParaAttr = thisAttr;
2906                         else
2907                             nextParaAttr = nextParagraph->GetAttributes();
2908                     }
2909
2910                     if (firstPara && nextParagraph && firstPara != nextParagraph)
2911                     {
2912                         // Move the objects to the previous para
2913                         wxRichTextObjectList::compatibility_iterator node1 = nextParagraph->GetChildren().GetFirst();
2914
2915                         while (node1)
2916                         {
2917                             wxRichTextObject* obj1 = node1->GetData();
2918
2919                             firstPara->AppendChild(obj1);
2920
2921                             wxRichTextObjectList::compatibility_iterator next1 = node1->GetNext();
2922                             nextParagraph->GetChildren().Erase(node1);
2923
2924                             node1 = next1;
2925                         }
2926
2927                         // Delete the paragraph
2928                         RemoveChild(nextParagraph, true);
2929                     }
2930
2931                     // Avoid empty paragraphs
2932                     if (firstPara && firstPara->GetChildren().GetCount() == 0)
2933                     {
2934                         wxRichTextPlainText* text = new wxRichTextPlainText(wxEmptyString);
2935                         firstPara->AppendChild(text);
2936                     }
2937
2938                     if (applyFinalParagraphStyle)
2939                         firstPara->SetAttributes(nextParaAttr);
2940
2941                     return true;
2942                 }
2943             }
2944         }
2945
2946         node = next;
2947     }
2948
2949     return true;
2950 }
2951
2952 /// Get any text in this object for the given range
2953 wxString wxRichTextParagraphLayoutBox::GetTextForRange(const wxRichTextRange& range) const
2954 {
2955     int lineCount = 0;
2956     wxString text;
2957     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
2958     while (node)
2959     {
2960         wxRichTextObject* child = node->GetData();
2961         if (!child->GetRange().IsOutside(range))
2962         {
2963             wxRichTextRange childRange = range;
2964             childRange.LimitTo(child->GetRange());
2965
2966             wxString childText = child->GetTextForRange(childRange);
2967
2968             text += childText;
2969
2970             if ((childRange.GetEnd() == child->GetRange().GetEnd()) && node->GetNext())
2971                 text += wxT("\n");
2972
2973             lineCount ++;
2974         }
2975         node = node->GetNext();
2976     }
2977
2978     return text;
2979 }
2980
2981 /// Get all the text
2982 wxString wxRichTextParagraphLayoutBox::GetText() const
2983 {
2984     return GetTextForRange(GetOwnRange());
2985 }
2986
2987 /// Get the paragraph by number
2988 wxRichTextParagraph* wxRichTextParagraphLayoutBox::GetParagraphAtLine(long paragraphNumber) const
2989 {
2990     if ((size_t) paragraphNumber >= GetChildCount())
2991         return NULL;
2992
2993     return (wxRichTextParagraph*) GetChild((size_t) paragraphNumber);
2994 }
2995
2996 /// Get the length of the paragraph
2997 int wxRichTextParagraphLayoutBox::GetParagraphLength(long paragraphNumber) const
2998 {
2999     wxRichTextParagraph* para = GetParagraphAtLine(paragraphNumber);
3000     if (para)
3001         return para->GetRange().GetLength() - 1; // don't include newline
3002     else
3003         return 0;
3004 }
3005
3006 /// Get the text of the paragraph
3007 wxString wxRichTextParagraphLayoutBox::GetParagraphText(long paragraphNumber) const
3008 {
3009     wxRichTextParagraph* para = GetParagraphAtLine(paragraphNumber);
3010     if (para)
3011         return para->GetTextForRange(para->GetRange());
3012     else
3013         return wxEmptyString;
3014 }
3015
3016 /// Convert zero-based line column and paragraph number to a position.
3017 long wxRichTextParagraphLayoutBox::XYToPosition(long x, long y) const
3018 {
3019     wxRichTextParagraph* para = GetParagraphAtLine(y);
3020     if (para)
3021     {
3022         return para->GetRange().GetStart() + x;
3023     }
3024     else
3025         return -1;
3026 }
3027
3028 /// Convert zero-based position to line column and paragraph number
3029 bool wxRichTextParagraphLayoutBox::PositionToXY(long pos, long* x, long* y) const
3030 {
3031     wxRichTextParagraph* para = GetParagraphAtPosition(pos);
3032     if (para)
3033     {
3034         int count = 0;
3035         wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
3036         while (node)
3037         {
3038             wxRichTextObject* child = node->GetData();
3039             if (child == para)
3040                 break;
3041             count ++;
3042             node = node->GetNext();
3043         }
3044
3045         *y = count;
3046         *x = pos - para->GetRange().GetStart();
3047
3048         return true;
3049     }
3050     else
3051         return false;
3052 }
3053
3054 /// Get the leaf object in a paragraph at this position.
3055 /// Given a line number, get the corresponding wxRichTextLine object.
3056 wxRichTextObject* wxRichTextParagraphLayoutBox::GetLeafObjectAtPosition(long position) const
3057 {
3058     wxRichTextParagraph* para = GetParagraphAtPosition(position);
3059     if (para)
3060     {
3061         wxRichTextObjectList::compatibility_iterator node = para->GetChildren().GetFirst();
3062
3063         while (node)
3064         {
3065             wxRichTextObject* child = node->GetData();
3066             if (child->GetRange().Contains(position))
3067                 return child;
3068
3069             node = node->GetNext();
3070         }
3071         if (position == para->GetRange().GetEnd() && para->GetChildCount() > 0)
3072             return para->GetChildren().GetLast()->GetData();
3073     }
3074     return NULL;
3075 }
3076
3077 /// Set character or paragraph text attributes: apply character styles only to immediate text nodes
3078 bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const wxRichTextAttr& style, int flags)
3079 {
3080     bool characterStyle = false;
3081     bool paragraphStyle = false;
3082
3083     if (style.IsCharacterStyle())
3084         characterStyle = true;
3085     if (style.IsParagraphStyle())
3086         paragraphStyle = true;
3087
3088     wxRichTextBuffer* buffer = GetBuffer();
3089
3090     bool withUndo = ((flags & wxRICHTEXT_SETSTYLE_WITH_UNDO) != 0);
3091     bool applyMinimal = ((flags & wxRICHTEXT_SETSTYLE_OPTIMIZE) != 0);
3092     bool parasOnly = ((flags & wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY) != 0);
3093     bool charactersOnly = ((flags & wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY) != 0);
3094     bool resetExistingStyle = ((flags & wxRICHTEXT_SETSTYLE_RESET) != 0);
3095     bool removeStyle = ((flags & wxRICHTEXT_SETSTYLE_REMOVE) != 0);
3096
3097     // Apply paragraph style first, if any
3098     wxRichTextAttr wholeStyle(style);
3099
3100     if (!removeStyle && wholeStyle.HasParagraphStyleName() && buffer->GetStyleSheet())
3101     {
3102         wxRichTextParagraphStyleDefinition* def = buffer->GetStyleSheet()->FindParagraphStyle(wholeStyle.GetParagraphStyleName());
3103         if (def)
3104             wxRichTextApplyStyle(wholeStyle, def->GetStyleMergedWithBase(buffer->GetStyleSheet()));
3105     }
3106
3107     // Limit the attributes to be set to the content to only character attributes.
3108     wxRichTextAttr characterAttributes(wholeStyle);
3109     characterAttributes.SetFlags(characterAttributes.GetFlags() & (wxTEXT_ATTR_CHARACTER));
3110
3111     if (!removeStyle && characterAttributes.HasCharacterStyleName() && buffer->GetStyleSheet())
3112     {
3113         wxRichTextCharacterStyleDefinition* def = buffer->GetStyleSheet()->FindCharacterStyle(characterAttributes.GetCharacterStyleName());
3114         if (def)
3115             wxRichTextApplyStyle(characterAttributes, def->GetStyleMergedWithBase(buffer->GetStyleSheet()));
3116     }
3117
3118     // If we are associated with a control, make undoable; otherwise, apply immediately
3119     // to the data.
3120
3121     bool haveControl = (buffer->GetRichTextCtrl() != NULL);
3122
3123     wxRichTextAction* action = NULL;
3124
3125     if (haveControl && withUndo)
3126     {
3127         action = new wxRichTextAction(NULL, _("Change Style"), wxRICHTEXT_CHANGE_STYLE, buffer, this, buffer->GetRichTextCtrl());
3128         action->SetRange(range);
3129         action->SetPosition(buffer->GetRichTextCtrl()->GetCaretPosition());
3130     }
3131
3132     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
3133     while (node)
3134     {
3135         wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
3136         // wxASSERT (para != NULL);
3137
3138         if (para && para->GetChildCount() > 0)
3139         {
3140             // Stop searching if we're beyond the range of interest
3141             if (para->GetRange().GetStart() > range.GetEnd())
3142                 break;
3143
3144             if (!para->GetRange().IsOutside(range))
3145             {
3146                 // We'll be using a copy of the paragraph to make style changes,
3147                 // not updating the buffer directly.
3148                 wxRichTextParagraph* newPara wxDUMMY_INITIALIZE(NULL);
3149
3150                 if (haveControl && withUndo)
3151                 {
3152                     newPara = new wxRichTextParagraph(*para);
3153                     action->GetNewParagraphs().AppendChild(newPara);
3154
3155                     // Also store the old ones for Undo
3156                     action->GetOldParagraphs().AppendChild(new wxRichTextParagraph(*para));
3157                 }
3158                 else
3159                     newPara = para;
3160
3161                 // If we're specifying paragraphs only, then we really mean character formatting
3162                 // to be included in the paragraph style
3163                 if ((paragraphStyle || parasOnly) && !charactersOnly)
3164                 {
3165                     if (removeStyle)
3166                     {
3167                         // Removes the given style from the paragraph
3168                         wxRichTextRemoveStyle(newPara->GetAttributes(), style);
3169                     }
3170                     else if (resetExistingStyle)
3171                         newPara->GetAttributes() = wholeStyle;
3172                     else
3173                     {
3174                         if (applyMinimal)
3175                         {
3176                             // Only apply attributes that will make a difference to the combined
3177                             // style as seen on the display
3178                             wxRichTextAttr combinedAttr(para->GetCombinedAttributes(true));
3179                             wxRichTextApplyStyle(newPara->GetAttributes(), wholeStyle, & combinedAttr);
3180                         }
3181                         else
3182                             wxRichTextApplyStyle(newPara->GetAttributes(), wholeStyle);
3183                     }
3184                 }
3185
3186                 // When applying paragraph styles dynamically, don't change the text objects' attributes
3187                 // since they will computed as needed. Only apply the character styling if it's _only_
3188                 // character styling. This policy is subject to change and might be put under user control.
3189
3190                 // Hm. we might well be applying a mix of paragraph and character styles, in which
3191                 // case we _do_ want to apply character styles regardless of what para styles are set.
3192                 // But if we're applying a paragraph style, which has some character attributes, but
3193                 // we only want the paragraphs to hold this character style, then we _don't_ want to
3194                 // apply the character style. So we need to be able to choose.
3195
3196                 if (!parasOnly && (characterStyle|charactersOnly) && range.GetStart() != newPara->GetRange().GetEnd())
3197                 {
3198                     wxRichTextRange childRange(range);
3199                     childRange.LimitTo(newPara->GetRange());
3200
3201                     // Find the starting position and if necessary split it so
3202                     // we can start applying a different style.
3203                     // TODO: check that the style actually changes or is different
3204                     // from style outside of range
3205                     wxRichTextObject* firstObject wxDUMMY_INITIALIZE(NULL);
3206                     wxRichTextObject* lastObject wxDUMMY_INITIALIZE(NULL);
3207
3208                     if (childRange.GetStart() == newPara->GetRange().GetStart())
3209                         firstObject = newPara->GetChildren().GetFirst()->GetData();
3210                     else
3211                         firstObject = newPara->SplitAt(range.GetStart());
3212
3213                     // Increment by 1 because we're apply the style one _after_ the split point
3214                     long splitPoint = childRange.GetEnd();
3215                     if (splitPoint != newPara->GetRange().GetEnd())
3216                         splitPoint ++;
3217
3218                     // Find last object
3219                     if (splitPoint == newPara->GetRange().GetEnd())
3220                         lastObject = newPara->GetChildren().GetLast()->GetData();
3221                     else
3222                         // lastObject is set as a side-effect of splitting. It's
3223                         // returned as the object before the new object.
3224                         (void) newPara->SplitAt(splitPoint, & lastObject);
3225
3226                     wxASSERT(firstObject != NULL);
3227                     wxASSERT(lastObject != NULL);
3228
3229                     if (!firstObject || !lastObject)
3230                         continue;
3231
3232                     wxRichTextObjectList::compatibility_iterator firstNode = newPara->GetChildren().Find(firstObject);
3233                     wxRichTextObjectList::compatibility_iterator lastNode = newPara->GetChildren().Find(lastObject);
3234
3235                     wxASSERT(firstNode);
3236                     wxASSERT(lastNode);
3237
3238                     wxRichTextObjectList::compatibility_iterator node2 = firstNode;
3239
3240                     while (node2)
3241                     {
3242                         wxRichTextObject* child = node2->GetData();
3243
3244                         if (removeStyle)
3245                         {
3246                             // Removes the given style from the paragraph
3247                             wxRichTextRemoveStyle(child->GetAttributes(), style);
3248                         }
3249                         else if (resetExistingStyle)
3250                             child->GetAttributes() = characterAttributes;
3251                         else
3252                         {
3253                             if (applyMinimal)
3254                             {
3255                                 // Only apply attributes that will make a difference to the combined
3256                                 // style as seen on the display
3257                                 wxRichTextAttr combinedAttr(newPara->GetCombinedAttributes(child->GetAttributes(), true));
3258                                 wxRichTextApplyStyle(child->GetAttributes(), characterAttributes, & combinedAttr);
3259                             }
3260                             else
3261                                 wxRichTextApplyStyle(child->GetAttributes(), characterAttributes);
3262                         }
3263
3264                         if (node2 == lastNode)
3265                             break;
3266
3267                         node2 = node2->GetNext();
3268                     }
3269                 }
3270             }
3271         }
3272
3273         node = node->GetNext();
3274     }
3275
3276     // Do action, or delay it until end of batch.
3277     if (haveControl && withUndo)
3278         buffer->SubmitAction(action);
3279
3280     return true;
3281 }
3282
3283 // Just change the attributes for this single object.
3284 void wxRichTextParagraphLayoutBox::SetStyle(wxRichTextObject* obj, const wxRichTextAttr& textAttr, int flags)
3285 {
3286     wxRichTextBuffer* buffer = GetBuffer();
3287     bool withUndo = flags & wxRICHTEXT_SETSTYLE_WITH_UNDO;
3288     bool resetExistingStyle = ((flags & wxRICHTEXT_SETSTYLE_RESET) != 0);
3289     bool haveControl = (buffer->GetRichTextCtrl() != NULL);
3290
3291     wxRichTextAction *action = NULL;
3292     wxRichTextAttr newAttr = obj->GetAttributes();
3293     if (resetExistingStyle)
3294         newAttr = textAttr;
3295     else
3296         newAttr.Apply(textAttr);
3297
3298     if (haveControl && withUndo)
3299     {
3300         action = new wxRichTextAction(NULL, _("Change Object Style"), wxRICHTEXT_CHANGE_ATTRIBUTES, buffer, obj->GetContainer(), buffer->GetRichTextCtrl());
3301         action->SetRange(obj->GetRange().FromInternal());
3302         action->SetPosition(buffer->GetRichTextCtrl()->GetCaretPosition());
3303         action->MakeObject(obj);
3304
3305         action->GetAttributes() = newAttr;
3306     }
3307     else
3308         obj->GetAttributes() = newAttr;
3309
3310     if (haveControl && withUndo)
3311         buffer->SubmitAction(action);
3312 }
3313
3314 /// Get the text attributes for this position.
3315 bool wxRichTextParagraphLayoutBox::GetStyle(long position, wxRichTextAttr& style)
3316 {
3317     return DoGetStyle(position, style, true);
3318 }
3319
3320 bool wxRichTextParagraphLayoutBox::GetUncombinedStyle(long position, wxRichTextAttr& style)
3321 {
3322     return DoGetStyle(position, style, false);
3323 }
3324
3325 /// Implementation helper for GetStyle. If combineStyles is true, combine base, paragraph and
3326 /// context attributes.
3327 bool wxRichTextParagraphLayoutBox::DoGetStyle(long position, wxRichTextAttr& style, bool combineStyles)
3328 {
3329     wxRichTextObject* obj wxDUMMY_INITIALIZE(NULL);
3330
3331     if (style.IsParagraphStyle())
3332     {
3333         obj = GetParagraphAtPosition(position);
3334         if (obj)
3335         {
3336             if (combineStyles)
3337             {
3338                 // Start with the base style
3339                 style = GetAttributes();
3340                 style.GetTextBoxAttr().Reset();
3341
3342                 // Apply the paragraph style
3343                 wxRichTextApplyStyle(style, obj->GetAttributes());
3344             }
3345             else
3346                 style = obj->GetAttributes();
3347
3348             return true;
3349         }
3350     }
3351     else
3352     {
3353         obj = GetLeafObjectAtPosition(position);
3354         if (obj)
3355         {
3356             if (combineStyles)
3357             {
3358                 wxRichTextParagraph* para = wxDynamicCast(obj->GetParent(), wxRichTextParagraph);
3359                 style = para ? para->GetCombinedAttributes(obj->GetAttributes()) : obj->GetAttributes();
3360             }
3361             else
3362                 style = obj->GetAttributes();
3363
3364             return true;
3365         }
3366     }
3367     return false;
3368 }
3369
3370 static bool wxHasStyle(long flags, long style)
3371 {
3372     return (flags & style) != 0;
3373 }
3374
3375 /// Combines 'style' with 'currentStyle' for the purpose of summarising the attributes of a range of
3376 /// content.
3377 bool wxRichTextParagraphLayoutBox::CollectStyle(wxRichTextAttr& currentStyle, const wxRichTextAttr& style, wxRichTextAttr& clashingAttr, wxRichTextAttr& absentAttr)
3378 {
3379     currentStyle.CollectCommonAttributes(style, clashingAttr, absentAttr);
3380
3381     return true;
3382 }
3383
3384 /// Get the combined style for a range - if any attribute is different within the range,
3385 /// that attribute is not present within the flags.
3386 /// *** Note that this is not recursive, and so assumes that content inside a paragraph is not itself
3387 /// nested.
3388 bool wxRichTextParagraphLayoutBox::GetStyleForRange(const wxRichTextRange& range, wxRichTextAttr& style)
3389 {
3390     style = wxRichTextAttr();
3391
3392     wxRichTextAttr clashingAttr;
3393     wxRichTextAttr absentAttrPara, absentAttrChar;
3394
3395     wxRichTextObjectList::compatibility_iterator node = GetChildren().GetFirst();
3396     while (node)
3397     {
3398         wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
3399         if (para && !(para->GetRange().GetStart() > range.GetEnd() || para->GetRange().GetEnd() < range.GetStart()))
3400         {
3401             if (para->GetChildren().GetCount() == 0)
3402             {
3403                 wxRichTextAttr paraStyle = para->GetCombinedAttributes(true /* use box attributes */);
3404
3405                 CollectStyle(style, paraStyle, clashingAttr, absentAttrPara);
3406             }
3407             else
3408             {
3409                 wxRichTextRange paraRange(para->GetRange());
3410                 paraRange.LimitTo(range);
3411
3412                 // First collect paragraph attributes only
3413                 wxRichTextAttr paraStyle = para->GetCombinedAttributes();
3414                 paraStyle.SetFlags(paraStyle.GetFlags() & wxTEXT_ATTR_PARAGRAPH);
3415                 CollectStyle(style, paraStyle, clashingAttr, absentAttrPara);
3416
3417                 wxRichTextObjectList::compatibility_iterator childNode = para->GetChildren().GetFirst();
3418
3419                 while (childNode)
3420                 {
3421                     wxRichTextObject* child = childNode->GetData();
3422                     if (!(child->GetRange().GetStart() > range.GetEnd() || child->GetRange().GetEnd() < range.GetStart()))
3423                     {
3424                         wxRichTextAttr childStyle = para->GetCombinedAttributes(child->GetAttributes(), true /* include box attributes */);
3425
3426                         // Now collect character attributes only
3427                         childStyle.SetFlags(childStyle.GetFlags() & wxTEXT_ATTR_CHARACTER);
3428
3429                         CollectStyle(style, childStyle, clashingAttr, absentAttrChar);
3430                     }
3431
3432                     childNode = childNode->GetNext();
3433                 }
3434             }
3435         }
3436         node = node->GetNext();
3437     }
3438     return true;
3439 }
3440
3441 /// Set default style
3442 bool wxRichTextParagraphLayoutBox::SetDefaultStyle(const wxRichTextAttr& style)
3443 {
3444     m_defaultAttributes = style;
3445     return true;
3446 }
3447
3448 /// Test if this whole range has character attributes of the specified kind. If any
3449 /// of the attributes are different within the range, the test fails. You
3450 /// can use this to implement, for example, bold button updating. style must have
3451 /// flags indicating which attributes are of interest.
3452 bool wxRichTextParagraphLayoutBox::HasCharacterAttributes(const wxRichTextRange& range, const wxRichTextAttr& style) const
3453 {
3454     int foundCount = 0;
3455     int matchingCount = 0;
3456
3457     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
3458     while (node)
3459     {
3460         wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
3461         // wxASSERT (para != NULL);
3462
3463         if (para)
3464         {
3465             // Stop searching if we're beyond the range of interest
3466             if (para->GetRange().GetStart() > range.GetEnd())
3467                 return foundCount == matchingCount && foundCount != 0;
3468
3469             if (!para->GetRange().IsOutside(range))
3470             {
3471                 wxRichTextObjectList::compatibility_iterator node2 = para->GetChildren().GetFirst();
3472
3473                 while (node2)
3474                 {
3475                     wxRichTextObject* child = node2->GetData();
3476                     // Allow for empty string if no buffer
3477                     wxRichTextRange childRange = child->GetRange();
3478                     if (childRange.GetLength() == 0 && GetRange().GetLength() == 1)
3479                         childRange.SetEnd(childRange.GetEnd()+1);
3480
3481                     if (!childRange.IsOutside(range) && wxDynamicCast(child, wxRichTextPlainText))
3482                     {
3483                         foundCount ++;
3484                         wxRichTextAttr textAttr = para->GetCombinedAttributes(child->GetAttributes());
3485
3486                         if (textAttr.EqPartial(style, false /* strong test - attributes must be valid in both objects */))
3487                             matchingCount ++;
3488                     }
3489
3490                     node2 = node2->GetNext();
3491                 }
3492             }
3493         }
3494
3495         node = node->GetNext();
3496     }
3497
3498     return foundCount == matchingCount && foundCount != 0;
3499 }
3500
3501 /// Test if this whole range has paragraph attributes of the specified kind. If any
3502 /// of the attributes are different within the range, the test fails. You
3503 /// can use this to implement, for example, centering button updating. style must have
3504 /// flags indicating which attributes are of interest.
3505 bool wxRichTextParagraphLayoutBox::HasParagraphAttributes(const wxRichTextRange& range, const wxRichTextAttr& style) const
3506 {
3507     int foundCount = 0;
3508     int matchingCount = 0;
3509
3510     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
3511     while (node)
3512     {
3513         wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
3514         // wxASSERT (para != NULL);
3515
3516         if (para)
3517         {
3518             // Stop searching if we're beyond the range of interest
3519             if (para->GetRange().GetStart() > range.GetEnd())
3520                 return foundCount == matchingCount && foundCount != 0;
3521
3522             if (!para->GetRange().IsOutside(range))
3523             {
3524                 wxRichTextAttr textAttr = GetAttributes();
3525                 // Apply the paragraph style
3526                 wxRichTextApplyStyle(textAttr, para->GetAttributes());
3527
3528                 foundCount ++;
3529                 if (textAttr.EqPartial(style, false /* strong test */))
3530                     matchingCount ++;
3531             }
3532         }
3533
3534         node = node->GetNext();
3535     }
3536     return foundCount == matchingCount && foundCount != 0;
3537 }
3538
3539 void wxRichTextParagraphLayoutBox::PrepareContent(wxRichTextParagraphLayoutBox& container)
3540 {
3541     wxRichTextBuffer* buffer = GetBuffer();
3542     if (buffer && buffer->GetRichTextCtrl())
3543         buffer->GetRichTextCtrl()->PrepareContent(container);
3544 }
3545
3546 /// Set character or paragraph properties
3547 bool wxRichTextParagraphLayoutBox::SetProperties(const wxRichTextRange& range, const wxRichTextProperties& properties, int flags)
3548 {
3549     wxRichTextBuffer* buffer = GetBuffer();
3550
3551     bool withUndo = ((flags & wxRICHTEXT_SETPROPERTIES_WITH_UNDO) != 0);
3552     bool parasOnly = ((flags & wxRICHTEXT_SETPROPERTIES_PARAGRAPHS_ONLY) != 0);
3553     bool charactersOnly = ((flags & wxRICHTEXT_SETPROPERTIES_CHARACTERS_ONLY) != 0);
3554     bool resetExistingProperties = ((flags & wxRICHTEXT_SETPROPERTIES_RESET) != 0);
3555     bool removeProperties = ((flags & wxRICHTEXT_SETPROPERTIES_REMOVE) != 0);
3556
3557     // If we are associated with a control, make undoable; otherwise, apply immediately
3558     // to the data.
3559
3560     bool haveControl = (buffer->GetRichTextCtrl() != NULL);
3561
3562     wxRichTextAction* action = NULL;
3563
3564     if (haveControl && withUndo)
3565     {
3566         action = new wxRichTextAction(NULL, _("Change Properties"), wxRICHTEXT_CHANGE_PROPERTIES, buffer, this, buffer->GetRichTextCtrl());
3567         action->SetRange(range);
3568         action->SetPosition(buffer->GetRichTextCtrl()->GetCaretPosition());
3569     }
3570
3571     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
3572     while (node)
3573     {
3574         wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
3575         // wxASSERT (para != NULL);
3576
3577         if (para && para->GetChildCount() > 0)
3578         {
3579             // Stop searching if we're beyond the range of interest
3580             if (para->GetRange().GetStart() > range.GetEnd())
3581                 break;
3582
3583             if (!para->GetRange().IsOutside(range))
3584             {
3585                 // We'll be using a copy of the paragraph to make style changes,
3586                 // not updating the buffer directly.
3587                 wxRichTextParagraph* newPara wxDUMMY_INITIALIZE(NULL);
3588
3589                 if (haveControl && withUndo)
3590                 {
3591                     newPara = new wxRichTextParagraph(*para);
3592                     action->GetNewParagraphs().AppendChild(newPara);
3593
3594                     // Also store the old ones for Undo
3595                     action->GetOldParagraphs().AppendChild(new wxRichTextParagraph(*para));
3596                 }
3597                 else
3598                     newPara = para;
3599
3600                 if (parasOnly)
3601                 {
3602                     if (removeProperties)
3603                     {
3604                         // Removes the given style from the paragraph
3605                         // TODO
3606                         newPara->GetProperties().RemoveProperties(properties);
3607                     }
3608                     else if (resetExistingProperties)
3609                         newPara->GetProperties() = properties;
3610                     else
3611                         newPara->GetProperties().MergeProperties(properties);
3612                 }
3613
3614                 // When applying paragraph styles dynamically, don't change the text objects' attributes
3615                 // since they will computed as needed. Only apply the character styling if it's _only_
3616                 // character styling. This policy is subject to change and might be put under user control.
3617
3618                 // Hm. we might well be applying a mix of paragraph and character styles, in which
3619                 // case we _do_ want to apply character styles regardless of what para styles are set.
3620                 // But if we're applying a paragraph style, which has some character attributes, but
3621                 // we only want the paragraphs to hold this character style, then we _don't_ want to
3622                 // apply the character style. So we need to be able to choose.
3623
3624                 if (!parasOnly && charactersOnly && range.GetStart() != newPara->GetRange().GetEnd())
3625                 {
3626                     wxRichTextRange childRange(range);
3627                     childRange.LimitTo(newPara->GetRange());
3628
3629                     // Find the starting position and if necessary split it so
3630                     // we can start applying different properties.
3631                     // TODO: check that the properties actually change or are different
3632                     // from properties outside of range
3633                     wxRichTextObject* firstObject wxDUMMY_INITIALIZE(NULL);
3634                     wxRichTextObject* lastObject wxDUMMY_INITIALIZE(NULL);
3635
3636                     if (childRange.GetStart() == newPara->GetRange().GetStart())
3637                         firstObject = newPara->GetChildren().GetFirst()->GetData();
3638                     else
3639                         firstObject = newPara->SplitAt(range.GetStart());
3640
3641                     // Increment by 1 because we're apply the style one _after_ the split point
3642                     long splitPoint = childRange.GetEnd();
3643                     if (splitPoint != newPara->GetRange().GetEnd())
3644                         splitPoint ++;
3645
3646                     // Find last object
3647                     if (splitPoint == newPara->GetRange().GetEnd())
3648                         lastObject = newPara->GetChildren().GetLast()->GetData();
3649                     else
3650                         // lastObject is set as a side-effect of splitting. It's
3651                         // returned as the object before the new object.
3652                         (void) newPara->SplitAt(splitPoint, & lastObject);
3653
3654                     wxASSERT(firstObject != NULL);
3655                     wxASSERT(lastObject != NULL);
3656
3657                     if (!firstObject || !lastObject)
3658                         continue;
3659
3660                     wxRichTextObjectList::compatibility_iterator firstNode = newPara->GetChildren().Find(firstObject);
3661                     wxRichTextObjectList::compatibility_iterator lastNode = newPara->GetChildren().Find(lastObject);
3662
3663                     wxASSERT(firstNode);
3664                     wxASSERT(lastNode);
3665
3666                     wxRichTextObjectList::compatibility_iterator node2 = firstNode;
3667
3668                     while (node2)
3669                     {
3670                         wxRichTextObject* child = node2->GetData();
3671
3672                         if (removeProperties)
3673                         {
3674                             // Removes the given properties from the paragraph
3675                             child->GetProperties().RemoveProperties(properties);
3676                         }
3677                         else if (resetExistingProperties)
3678                             child->GetProperties() = properties;
3679                         else
3680                         {
3681                             child->GetProperties().MergeProperties(properties);
3682                         }
3683
3684                         if (node2 == lastNode)
3685                             break;
3686
3687                         node2 = node2->GetNext();
3688                     }
3689                 }
3690             }
3691         }
3692
3693         node = node->GetNext();
3694     }
3695
3696     // Do action, or delay it until end of batch.
3697     if (haveControl && withUndo)
3698         buffer->SubmitAction(action);
3699
3700     return true;
3701 }
3702
3703 void wxRichTextParagraphLayoutBox::Reset()
3704 {
3705     Clear();
3706
3707     wxRichTextBuffer* buffer = GetBuffer();
3708     if (buffer && buffer->GetRichTextCtrl())
3709     {
3710         wxRichTextEvent event(wxEVT_COMMAND_RICHTEXT_BUFFER_RESET, buffer->GetRichTextCtrl()->GetId());
3711         event.SetEventObject(buffer->GetRichTextCtrl());
3712         event.SetContainer(this);
3713
3714         buffer->SendEvent(event, true);
3715     }
3716
3717     AddParagraph(wxEmptyString);
3718
3719     PrepareContent(*this);
3720
3721     InvalidateHierarchy(wxRICHTEXT_ALL);
3722 }
3723
3724 /// Invalidate the buffer. With no argument, invalidates whole buffer.
3725 void wxRichTextParagraphLayoutBox::Invalidate(const wxRichTextRange& invalidRange)
3726 {
3727     wxRichTextCompositeObject::Invalidate(invalidRange);
3728
3729     DoInvalidate(invalidRange);
3730 }
3731
3732 // Do the (in)validation for this object only
3733 void wxRichTextParagraphLayoutBox::DoInvalidate(const wxRichTextRange& invalidRange)
3734 {
3735     if (invalidRange == wxRICHTEXT_ALL)
3736     {
3737         m_invalidRange = wxRICHTEXT_ALL;
3738     }
3739     // Already invalidating everything
3740     else if (m_invalidRange == wxRICHTEXT_ALL)
3741     {
3742     }
3743     else
3744     {
3745         if ((invalidRange.GetStart() < m_invalidRange.GetStart()) || m_invalidRange.GetStart() == -1)
3746             m_invalidRange.SetStart(invalidRange.GetStart());
3747         if (invalidRange.GetEnd() > m_invalidRange.GetEnd())
3748             m_invalidRange.SetEnd(invalidRange.GetEnd());
3749     }
3750 }
3751
3752 // Do the (in)validation both up and down the hierarchy
3753 void wxRichTextParagraphLayoutBox::InvalidateHierarchy(const wxRichTextRange& invalidRange)
3754 {
3755     Invalidate(invalidRange);
3756
3757     if (invalidRange != wxRICHTEXT_NONE)
3758     {
3759         // Now go up the hierarchy
3760         wxRichTextObject* thisObj = this;
3761         wxRichTextObject* p = GetParent();
3762         while (p)
3763         {
3764             wxRichTextParagraphLayoutBox* l = wxDynamicCast(p, wxRichTextParagraphLayoutBox);
3765             if (l)
3766                 l->DoInvalidate(thisObj->GetRange());
3767
3768             thisObj = p;
3769             p = p->GetParent();
3770         }
3771     }
3772 }
3773
3774 /// Get invalid range, rounding to entire paragraphs if argument is true.
3775 wxRichTextRange wxRichTextParagraphLayoutBox::GetInvalidRange(bool wholeParagraphs) const
3776 {
3777     if (m_invalidRange == wxRICHTEXT_ALL || m_invalidRange == wxRICHTEXT_NONE)
3778         return m_invalidRange;
3779
3780     wxRichTextRange range = m_invalidRange;
3781
3782     if (wholeParagraphs)
3783     {
3784         wxRichTextParagraph* para1 = GetParagraphAtPosition(range.GetStart());
3785         if (para1)
3786             range.SetStart(para1->GetRange().GetStart());
3787         // floating layout make all child should be relayout
3788         range.SetEnd(GetOwnRange().GetEnd());
3789     }
3790     return range;
3791 }
3792
3793 /// Apply the style sheet to the buffer, for example if the styles have changed.
3794 bool wxRichTextParagraphLayoutBox::ApplyStyleSheet(wxRichTextStyleSheet* styleSheet)
3795 {
3796     wxASSERT(styleSheet != NULL);
3797     if (!styleSheet)
3798         return false;
3799
3800     int foundCount = 0;
3801
3802     wxRichTextAttr attr(GetBasicStyle());
3803     if (GetBasicStyle().HasParagraphStyleName())
3804     {
3805         wxRichTextParagraphStyleDefinition* paraDef = styleSheet->FindParagraphStyle(GetBasicStyle().GetParagraphStyleName());
3806         if (paraDef)
3807         {
3808             attr.Apply(paraDef->GetStyleMergedWithBase(styleSheet));
3809             SetBasicStyle(attr);
3810             foundCount ++;
3811         }
3812     }
3813
3814     if (GetBasicStyle().HasCharacterStyleName())
3815     {
3816         wxRichTextCharacterStyleDefinition* charDef = styleSheet->FindCharacterStyle(GetBasicStyle().GetCharacterStyleName());
3817         if (charDef)
3818         {
3819             attr.Apply(charDef->GetStyleMergedWithBase(styleSheet));
3820             SetBasicStyle(attr);
3821             foundCount ++;
3822         }
3823     }
3824
3825     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
3826     while (node)
3827     {
3828         wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
3829         // wxASSERT (para != NULL);
3830
3831         if (para)
3832         {
3833             // Combine paragraph and list styles. If there is a list style in the original attributes,
3834             // the current indentation overrides anything else and is used to find the item indentation.
3835             // Also, for applying paragraph styles, consider having 2 modes: (1) we merge with what we have,
3836             // thereby taking into account all user changes, (2) reset the style completely (except for indentation/list
3837             // exception as above).
3838             // Problem: when changing from one list style to another, there's a danger that the level info will get lost.
3839             // So when changing a list style interactively, could retrieve level based on current style, then
3840             // set appropriate indent and apply new style.
3841
3842             int outline = -1;
3843             int num = -1;
3844             if (para->GetAttributes().HasOutlineLevel())
3845                 outline = para->GetAttributes().GetOutlineLevel();
3846             if (para->GetAttributes().HasBulletNumber())
3847                 num = para->GetAttributes().GetBulletNumber();
3848
3849             if (!para->GetAttributes().GetParagraphStyleName().IsEmpty() && !para->GetAttributes().GetListStyleName().IsEmpty())
3850             {
3851                 int currentIndent = para->GetAttributes().GetLeftIndent();
3852
3853                 wxRichTextParagraphStyleDefinition* paraDef = styleSheet->FindParagraphStyle(para->GetAttributes().GetParagraphStyleName());
3854                 wxRichTextListStyleDefinition* listDef = styleSheet->FindListStyle(para->GetAttributes().GetListStyleName());
3855                 if (paraDef && !listDef)
3856                 {
3857                     para->GetAttributes() = paraDef->GetStyleMergedWithBase(styleSheet);
3858                     foundCount ++;
3859                 }
3860                 else if (listDef && !paraDef)
3861                 {
3862                     // Set overall style defined for the list style definition
3863                     para->GetAttributes() = listDef->GetStyleMergedWithBase(styleSheet);
3864
3865                     // Apply the style for this level
3866                     wxRichTextApplyStyle(para->GetAttributes(), * listDef->GetLevelAttributes(listDef->FindLevelForIndent(currentIndent)));
3867                     foundCount ++;
3868                 }
3869                 else if (listDef && paraDef)
3870                 {
3871                     // Combines overall list style, style for level, and paragraph style
3872                     para->GetAttributes() = listDef->CombineWithParagraphStyle(currentIndent, paraDef->GetStyleMergedWithBase(styleSheet));
3873                     foundCount ++;
3874                 }
3875             }
3876             else if (para->GetAttributes().GetParagraphStyleName().IsEmpty() && !para->GetAttributes().GetListStyleName().IsEmpty())
3877             {
3878                 int currentIndent = para->GetAttributes().GetLeftIndent();
3879
3880                 wxRichTextListStyleDefinition* listDef = styleSheet->FindListStyle(para->GetAttributes().GetListStyleName());
3881
3882                 // Overall list definition style
3883                 para->GetAttributes() = listDef->GetStyleMergedWithBase(styleSheet);
3884
3885                 // Style for this level
3886                 wxRichTextApplyStyle(para->GetAttributes(), * listDef->GetLevelAttributes(listDef->FindLevelForIndent(currentIndent)));
3887
3888                 foundCount ++;
3889             }
3890             else if (!para->GetAttributes().GetParagraphStyleName().IsEmpty() && para->GetAttributes().GetListStyleName().IsEmpty())
3891             {
3892                 wxRichTextParagraphStyleDefinition* def = styleSheet->FindParagraphStyle(para->GetAttributes().GetParagraphStyleName());
3893                 if (def)
3894                 {
3895                     para->GetAttributes() = def->GetStyleMergedWithBase(styleSheet);
3896                     foundCount ++;
3897                 }
3898             }
3899
3900             if (outline != -1)
3901                 para->GetAttributes().SetOutlineLevel(outline);
3902             if (num != -1)
3903                 para->GetAttributes().SetBulletNumber(num);
3904         }
3905
3906         node = node->GetNext();
3907     }
3908     return foundCount != 0;
3909 }
3910
3911 /// Set list style
3912 bool wxRichTextParagraphLayoutBox::SetListStyle(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
3913 {
3914     wxRichTextBuffer* buffer = GetBuffer();
3915     wxRichTextStyleSheet* styleSheet = buffer->GetStyleSheet();
3916
3917     bool withUndo = ((flags & wxRICHTEXT_SETSTYLE_WITH_UNDO) != 0);
3918     // bool applyMinimal = ((flags & wxRICHTEXT_SETSTYLE_OPTIMIZE) != 0);
3919     bool specifyLevel = ((flags & wxRICHTEXT_SETSTYLE_SPECIFY_LEVEL) != 0);
3920     bool renumber = ((flags & wxRICHTEXT_SETSTYLE_RENUMBER) != 0);
3921
3922     // Current number, if numbering
3923     int n = startFrom;
3924
3925     wxASSERT (!specifyLevel || (specifyLevel && (specifiedLevel >= 0)));
3926
3927     // If we are associated with a control, make undoable; otherwise, apply immediately
3928     // to the data.
3929
3930     bool haveControl = (buffer->GetRichTextCtrl() != NULL);
3931
3932     wxRichTextAction* action = NULL;
3933
3934     if (haveControl && withUndo)
3935     {
3936         action = new wxRichTextAction(NULL, _("Change List Style"), wxRICHTEXT_CHANGE_STYLE, buffer, this, buffer->GetRichTextCtrl());
3937         action->SetRange(range);
3938         action->SetPosition(buffer->GetRichTextCtrl()->GetCaretPosition());
3939     }
3940
3941     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
3942     while (node)
3943     {
3944         wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
3945         // wxASSERT (para != NULL);
3946
3947         if (para && para->GetChildCount() > 0)
3948         {
3949             // Stop searching if we're beyond the range of interest
3950             if (para->GetRange().GetStart() > range.GetEnd())
3951                 break;
3952
3953             if (!para->GetRange().IsOutside(range))
3954             {
3955                 // We'll be using a copy of the paragraph to make style changes,
3956                 // not updating the buffer directly.
3957                 wxRichTextParagraph* newPara wxDUMMY_INITIALIZE(NULL);
3958
3959                 if (haveControl && withUndo)
3960                 {
3961                     newPara = new wxRichTextParagraph(*para);
3962                     action->GetNewParagraphs().AppendChild(newPara);
3963
3964                     // Also store the old ones for Undo
3965                     action->GetOldParagraphs().AppendChild(new wxRichTextParagraph(*para));
3966                 }
3967                 else
3968                     newPara = para;
3969
3970                 if (def)
3971                 {
3972                     int thisIndent = newPara->GetAttributes().GetLeftIndent();
3973                     int thisLevel = specifyLevel ? specifiedLevel : def->FindLevelForIndent(thisIndent);
3974
3975                     // How is numbering going to work?
3976                     // If we are renumbering, or numbering for the first time, we need to keep
3977                     // track of the number for each level. But we might be simply applying a different
3978                     // list style.
3979                     // In Word, applying a style to several paragraphs, even if at different levels,
3980                     // reverts the level back to the same one. So we could do the same here.
3981                     // Renumbering will need to be done when we promote/demote a paragraph.
3982
3983                     // Apply the overall list style, and item style for this level
3984                     wxRichTextAttr listStyle(def->GetCombinedStyleForLevel(thisLevel, styleSheet));
3985                     wxRichTextApplyStyle(newPara->GetAttributes(), listStyle);
3986
3987                     // Now we need to do numbering
3988                     if (renumber)
3989                     {
3990                         newPara->GetAttributes().SetBulletNumber(n);
3991                     }
3992
3993                     n ++;
3994                 }
3995                 else if (!newPara->GetAttributes().GetListStyleName().IsEmpty())
3996                 {
3997                     // if def is NULL, remove list style, applying any associated paragraph style
3998                     // to restore the attributes
3999
4000                     newPara->GetAttributes().SetListStyleName(wxEmptyString);
4001                     newPara->GetAttributes().SetLeftIndent(0, 0);
4002                     newPara->GetAttributes().SetBulletText(wxEmptyString);
4003
4004                     // Eliminate the main list-related attributes
4005                     newPara->GetAttributes().SetFlags(newPara->GetAttributes().GetFlags() & ~wxTEXT_ATTR_LEFT_INDENT & ~wxTEXT_ATTR_BULLET_STYLE & ~wxTEXT_ATTR_BULLET_NUMBER & ~wxTEXT_ATTR_BULLET_TEXT & wxTEXT_ATTR_LIST_STYLE_NAME);
4006
4007                     if (styleSheet && !newPara->GetAttributes().GetParagraphStyleName().IsEmpty())
4008                     {
4009                         wxRichTextParagraphStyleDefinition* def = styleSheet->FindParagraphStyle(newPara->GetAttributes().GetParagraphStyleName());
4010                         if (def)
4011                         {
4012                             newPara->GetAttributes() = def->GetStyleMergedWithBase(styleSheet);
4013                         }
4014                     }
4015                 }
4016             }
4017         }
4018
4019         node = node->GetNext();
4020     }
4021
4022     // Do action, or delay it until end of batch.
4023     if (haveControl && withUndo)
4024         buffer->SubmitAction(action);
4025
4026     return true;
4027 }
4028
4029 bool wxRichTextParagraphLayoutBox::SetListStyle(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
4030 {
4031     wxRichTextBuffer* buffer = GetBuffer();
4032     if (buffer && buffer->GetStyleSheet())
4033     {
4034         wxRichTextListStyleDefinition* def = buffer->GetStyleSheet()->FindListStyle(defName);
4035         if (def)
4036             return SetListStyle(range, def, flags, startFrom, specifiedLevel);
4037     }
4038     return false;
4039 }
4040
4041 /// Clear list for given range
4042 bool wxRichTextParagraphLayoutBox::ClearListStyle(const wxRichTextRange& range, int flags)
4043 {
4044     return SetListStyle(range, NULL, flags);
4045 }
4046
4047 /// Number/renumber any list elements in the given range
4048 bool wxRichTextParagraphLayoutBox::NumberList(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
4049 {
4050     return DoNumberList(range, range, 0, def, flags, startFrom, specifiedLevel);
4051 }
4052
4053 /// Number/renumber any list elements in the given range. Also do promotion or demotion of items, if specified
4054 bool wxRichTextParagraphLayoutBox::DoNumberList(const wxRichTextRange& range, const wxRichTextRange& promotionRange, int promoteBy,
4055                                                 wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
4056 {
4057     wxRichTextBuffer* buffer = GetBuffer();
4058     wxRichTextStyleSheet* styleSheet = buffer->GetStyleSheet();
4059
4060     bool withUndo = ((flags & wxRICHTEXT_SETSTYLE_WITH_UNDO) != 0);
4061     // bool applyMinimal = ((flags & wxRICHTEXT_SETSTYLE_OPTIMIZE) != 0);
4062 #if wxDEBUG_LEVEL
4063     bool specifyLevel = ((flags & wxRICHTEXT_SETSTYLE_SPECIFY_LEVEL) != 0);
4064 #endif
4065
4066     bool renumber = ((flags & wxRICHTEXT_SETSTYLE_RENUMBER) != 0);
4067
4068     // Max number of levels
4069     const int maxLevels = 10;
4070
4071     // The level we're looking at now
4072     int currentLevel = -1;
4073
4074     // The item number for each level
4075     int levels[maxLevels];
4076     int i;
4077
4078     // Reset all numbering
4079     for (i = 0; i < maxLevels; i++)
4080     {
4081         if (startFrom != -1)
4082             levels[i] = startFrom-1;
4083         else if (renumber) // start again
4084             levels[i] = 0;
4085         else
4086             levels[i] = -1; // start from the number we found, if any
4087     }
4088
4089 #if wxDEBUG_LEVEL
4090     wxASSERT(!specifyLevel || (specifyLevel && (specifiedLevel >= 0)));
4091 #endif
4092
4093     // If we are associated with a control, make undoable; otherwise, apply immediately
4094     // to the data.
4095
4096     bool haveControl = (buffer->GetRichTextCtrl() != NULL);
4097
4098     wxRichTextAction* action = NULL;
4099
4100     if (haveControl && withUndo)
4101     {
4102         action = new wxRichTextAction(NULL, _("Renumber List"), wxRICHTEXT_CHANGE_STYLE, buffer, this, buffer->GetRichTextCtrl());
4103         action->SetRange(range);
4104         action->SetPosition(buffer->GetRichTextCtrl()->GetCaretPosition());
4105     }
4106
4107     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
4108     while (node)
4109     {
4110         wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
4111         // wxASSERT (para != NULL);
4112
4113         if (para && para->GetChildCount() > 0)
4114         {
4115             // Stop searching if we're beyond the range of interest
4116             if (para->GetRange().GetStart() > range.GetEnd())
4117                 break;
4118
4119             if (!para->GetRange().IsOutside(range))
4120             {
4121                 // We'll be using a copy of the paragraph to make style changes,
4122                 // not updating the buffer directly.
4123                 wxRichTextParagraph* newPara wxDUMMY_INITIALIZE(NULL);
4124
4125                 if (haveControl && withUndo)
4126                 {
4127                     newPara = new wxRichTextParagraph(*para);
4128                     action->GetNewParagraphs().AppendChild(newPara);
4129
4130                     // Also store the old ones for Undo
4131                     action->GetOldParagraphs().AppendChild(new wxRichTextParagraph(*para));
4132                 }
4133                 else
4134                     newPara = para;
4135
4136                 wxRichTextListStyleDefinition* defToUse = def;
4137                 if (!defToUse)
4138                 {
4139                     if (styleSheet && !newPara->GetAttributes().GetListStyleName().IsEmpty())
4140                         defToUse = styleSheet->FindListStyle(newPara->GetAttributes().GetListStyleName());
4141                 }
4142
4143                 if (defToUse)
4144                 {
4145                     int thisIndent = newPara->GetAttributes().GetLeftIndent();
4146                     int thisLevel = defToUse->FindLevelForIndent(thisIndent);
4147
4148                     // If we've specified a level to apply to all, change the level.
4149                     if (specifiedLevel != -1)
4150                         thisLevel = specifiedLevel;
4151
4152                     // Do promotion if specified
4153                     if ((promoteBy != 0) && !para->GetRange().IsOutside(promotionRange))
4154                     {
4155                         thisLevel = thisLevel - promoteBy;
4156                         if (thisLevel < 0)
4157                             thisLevel = 0;
4158                         if (thisLevel > 9)
4159                             thisLevel = 9;
4160                     }
4161
4162                     // Apply the overall list style, and item style for this level
4163                     wxRichTextAttr listStyle(defToUse->GetCombinedStyleForLevel(thisLevel, styleSheet));
4164                     wxRichTextApplyStyle(newPara->GetAttributes(), listStyle);
4165
4166                     // OK, we've (re)applied the style, now let's get the numbering right.
4167
4168                     if (currentLevel == -1)
4169                         currentLevel = thisLevel;
4170
4171                     // Same level as before, do nothing except increment level's number afterwards
4172                     if (currentLevel == thisLevel)
4173                     {
4174                     }
4175                     // A deeper level: start renumbering all levels after current level
4176                     else if (thisLevel > currentLevel)
4177                     {
4178                         for (i = currentLevel+1; i <= thisLevel; i++)
4179                         {
4180                             levels[i] = 0;
4181                         }
4182                         currentLevel = thisLevel;
4183                     }
4184                     else if (thisLevel < currentLevel)
4185                     {
4186                         currentLevel = thisLevel;
4187                     }
4188
4189                     // Use the current numbering if -1 and we have a bullet number already
4190                     if (levels[currentLevel] == -1)
4191                     {
4192                         if (newPara->GetAttributes().HasBulletNumber())
4193                             levels[currentLevel] = newPara->GetAttributes().GetBulletNumber();
4194                         else
4195                             levels[currentLevel] = 1;
4196                     }
4197                     else
4198                     {
4199                         levels[currentLevel] ++;
4200                     }
4201
4202                     newPara->GetAttributes().SetBulletNumber(levels[currentLevel]);
4203
4204                     // Create the bullet text if an outline list
4205                     if (listStyle.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_OUTLINE)
4206                     {
4207                         wxString text;
4208                         for (i = 0; i <= currentLevel; i++)
4209                         {
4210                             if (!text.IsEmpty())
4211                                 text += wxT(".");
4212                             text += wxString::Format(wxT("%d"), levels[i]);
4213                         }
4214                         newPara->GetAttributes().SetBulletText(text);
4215                     }
4216                 }
4217             }
4218         }
4219
4220         node = node->GetNext();
4221     }
4222
4223     // Do action, or delay it until end of batch.
4224     if (haveControl && withUndo)
4225         buffer->SubmitAction(action);
4226
4227     return true;
4228 }
4229
4230 bool wxRichTextParagraphLayoutBox::NumberList(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
4231 {
4232     wxRichTextBuffer* buffer = GetBuffer();
4233     if (buffer->GetStyleSheet())
4234     {
4235         wxRichTextListStyleDefinition* def = NULL;
4236         if (!defName.IsEmpty())
4237             def = buffer->GetStyleSheet()->FindListStyle(defName);
4238         return NumberList(range, def, flags, startFrom, specifiedLevel);
4239     }
4240     return false;
4241 }
4242
4243 /// Promote the list items within the given range. promoteBy can be a positive or negative number, e.g. 1 or -1
4244 bool wxRichTextParagraphLayoutBox::PromoteList(int promoteBy, const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int specifiedLevel)
4245 {
4246     // TODO
4247     // One strategy is to first work out the range within which renumbering must occur. Then could pass these two ranges
4248     // to NumberList with a flag indicating promotion is required within one of the ranges.
4249     // Find first and last paragraphs in range. Then for first, calculate new indentation and look back until we find
4250     // a paragraph that either has no list style, or has one that is different or whose indentation is less.
4251     // We start renumbering from the para after that different para we found. We specify that the numbering of that
4252     // list position will start from 1.
4253     // Similarly, we look after the last para in the promote range for an indentation that is less (or no list style).
4254     // We can end the renumbering at this point.
4255
4256     // For now, only renumber within the promotion range.
4257
4258     return DoNumberList(range, range, promoteBy, def, flags, 1, specifiedLevel);
4259 }
4260
4261 bool wxRichTextParagraphLayoutBox::PromoteList(int promoteBy, const wxRichTextRange& range, const wxString& defName, int flags, int specifiedLevel)
4262 {
4263     wxRichTextBuffer* buffer = GetBuffer();
4264     if (buffer->GetStyleSheet())
4265     {
4266         wxRichTextListStyleDefinition* def = NULL;
4267         if (!defName.IsEmpty())
4268             def = buffer->GetStyleSheet()->FindListStyle(defName);
4269         return PromoteList(promoteBy, range, def, flags, specifiedLevel);
4270     }
4271     return false;
4272 }
4273
4274 /// Fills in the attributes for numbering a paragraph after previousParagraph. It also finds the
4275 /// position of the paragraph that it had to start looking from.
4276 bool wxRichTextParagraphLayoutBox::FindNextParagraphNumber(wxRichTextParagraph* previousParagraph, wxRichTextAttr& attr) const
4277 {
4278     if (!previousParagraph->GetAttributes().HasFlag(wxTEXT_ATTR_BULLET_STYLE) || previousParagraph->GetAttributes().GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_NONE)
4279         return false;
4280
4281     wxRichTextBuffer* buffer = GetBuffer();
4282     wxRichTextStyleSheet* styleSheet = buffer->GetStyleSheet();
4283     if (styleSheet && !previousParagraph->GetAttributes().GetListStyleName().IsEmpty())
4284     {
4285         wxRichTextListStyleDefinition* def = styleSheet->FindListStyle(previousParagraph->GetAttributes().GetListStyleName());
4286         if (def)
4287         {
4288             // int thisIndent = previousParagraph->GetAttributes().GetLeftIndent();
4289             // int thisLevel = def->FindLevelForIndent(thisIndent);
4290
4291             bool isOutline = (previousParagraph->GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_OUTLINE) != 0;
4292
4293             attr.SetFlags(previousParagraph->GetAttributes().GetFlags() & (wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_BULLET_NUMBER|wxTEXT_ATTR_BULLET_TEXT|wxTEXT_ATTR_BULLET_NAME));
4294             if (previousParagraph->GetAttributes().HasBulletName())
4295                 attr.SetBulletName(previousParagraph->GetAttributes().GetBulletName());
4296             attr.SetBulletStyle(previousParagraph->GetAttributes().GetBulletStyle());
4297             attr.SetListStyleName(previousParagraph->GetAttributes().GetListStyleName());
4298
4299             int nextNumber = previousParagraph->GetAttributes().GetBulletNumber() + 1;
4300             attr.SetBulletNumber(nextNumber);
4301
4302             if (isOutline)
4303             {
4304                 wxString text = previousParagraph->GetAttributes().GetBulletText();
4305                 if (!text.IsEmpty())
4306                 {
4307                     int pos = text.Find(wxT('.'), true);
4308                     if (pos != wxNOT_FOUND)
4309                     {
4310                         text = text.Mid(0, text.Length() - pos - 1);
4311                     }
4312                     else
4313                         text = wxEmptyString;
4314                     if (!text.IsEmpty())
4315                         text += wxT(".");
4316                     text += wxString::Format(wxT("%d"), nextNumber);
4317                     attr.SetBulletText(text);
4318                 }
4319             }
4320
4321             return true;
4322         }
4323         else
4324             return false;
4325     }
4326     else
4327         return false;
4328 }
4329
4330 /*!
4331  * wxRichTextParagraph
4332  * This object represents a single paragraph (or in a straight text editor, a line).
4333  */
4334
4335 IMPLEMENT_DYNAMIC_CLASS(wxRichTextParagraph, wxRichTextCompositeObject)
4336
4337 wxArrayInt wxRichTextParagraph::sm_defaultTabs;
4338
4339 wxRichTextParagraph::wxRichTextParagraph(wxRichTextObject* parent, wxRichTextAttr* style):
4340     wxRichTextCompositeObject(parent)
4341 {
4342     if (style)
4343         SetAttributes(*style);
4344 }
4345
4346 wxRichTextParagraph::wxRichTextParagraph(const wxString& text, wxRichTextObject* parent, wxRichTextAttr* paraStyle, wxRichTextAttr* charStyle):
4347     wxRichTextCompositeObject(parent)
4348 {
4349     if (paraStyle)
4350         SetAttributes(*paraStyle);
4351
4352     AppendChild(new wxRichTextPlainText(text, this, charStyle));
4353 }
4354
4355 wxRichTextParagraph::~wxRichTextParagraph()
4356 {
4357     ClearLines();
4358 }
4359
4360 /// Draw the item
4361 bool wxRichTextParagraph::Draw(wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& range, const wxRichTextSelection& selection, const wxRect& rect, int WXUNUSED(descent), int style)
4362 {
4363     if (!IsShown())
4364         return true;
4365
4366     // Currently we don't merge these attributes with the parent, but we
4367     // should consider whether we should (e.g. if we set a border colour
4368     // for all paragraphs). But generally box attributes are likely to be
4369     // different for different objects.
4370     wxRect paraRect = GetRect();
4371     wxRichTextAttr attr = GetCombinedAttributes();
4372     context.ApplyVirtualAttributes(attr, this);
4373
4374     DrawBoxAttributes(dc, GetBuffer(), attr, paraRect);
4375
4376     // Draw the bullet, if any
4377     if (attr.GetBulletStyle() != wxTEXT_ATTR_BULLET_STYLE_NONE)
4378     {
4379         if (attr.GetLeftSubIndent() != 0)
4380         {
4381             int spaceBeforePara = ConvertTenthsMMToPixels(dc, attr.GetParagraphSpacingBefore());
4382             int leftIndent = ConvertTenthsMMToPixels(dc, attr.GetLeftIndent());
4383
4384             wxRichTextAttr bulletAttr(attr);
4385
4386             // Combine with the font of the first piece of content, if one is specified
4387             if (GetChildren().GetCount() > 0)
4388             {
4389                 wxRichTextObject* firstObj = (wxRichTextObject*) GetChildren().GetFirst()->GetData();
4390                 if (!firstObj->IsFloatable() && firstObj->GetAttributes().HasFont())
4391                 {
4392                     wxRichTextApplyStyle(bulletAttr, firstObj->GetAttributes());
4393                 }
4394             }
4395
4396             // Get line height from first line, if any
4397             wxRichTextLine* line = m_cachedLines.GetFirst() ? (wxRichTextLine* ) m_cachedLines.GetFirst()->GetData() : NULL;
4398
4399             wxPoint linePos;
4400             int lineHeight wxDUMMY_INITIALIZE(0);
4401             if (line)
4402             {
4403                 lineHeight = line->GetSize().y;
4404                 linePos = line->GetPosition() + GetPosition();
4405             }
4406             else
4407             {
4408                 wxFont font;
4409                 if (bulletAttr.HasFont() && GetBuffer())
4410                     font = GetBuffer()->GetFontTable().FindFont(bulletAttr);
4411                 else
4412                     font = (*wxNORMAL_FONT);
4413
4414                 wxCheckSetFont(dc, font);
4415
4416                 lineHeight = dc.GetCharHeight();
4417                 linePos = GetPosition();
4418                 linePos.y += spaceBeforePara;
4419             }
4420
4421             wxRect bulletRect(GetPosition().x + leftIndent, linePos.y, linePos.x - (GetPosition().x + leftIndent), lineHeight);
4422
4423             if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_BITMAP)
4424             {
4425                 if (wxRichTextBuffer::GetRenderer())
4426                     wxRichTextBuffer::GetRenderer()->DrawBitmapBullet(this, dc, bulletAttr, bulletRect);
4427             }
4428             else if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_STANDARD)
4429             {
4430                 if (wxRichTextBuffer::GetRenderer())
4431                     wxRichTextBuffer::GetRenderer()->DrawStandardBullet(this, dc, bulletAttr, bulletRect);
4432             }
4433             else
4434             {
4435                 wxString bulletText = GetBulletText();
4436
4437                 if (!bulletText.empty() && wxRichTextBuffer::GetRenderer())
4438                     wxRichTextBuffer::GetRenderer()->DrawTextBullet(this, dc, bulletAttr, bulletRect, bulletText);
4439             }
4440         }
4441     }
4442
4443     // Draw the range for each line, one object at a time.
4444
4445     wxRichTextLineList::compatibility_iterator node = m_cachedLines.GetFirst();
4446     while (node)
4447     {
4448         wxRichTextLine* line = node->GetData();
4449         wxRichTextRange lineRange = line->GetAbsoluteRange();
4450
4451         // Lines are specified relative to the paragraph
4452
4453         wxPoint linePosition = line->GetPosition() + GetPosition();
4454
4455         // Don't draw if off the screen
4456         if (((style & wxRICHTEXT_DRAW_IGNORE_CACHE) != 0) || ((linePosition.y + line->GetSize().y) >= rect.y && linePosition.y <= rect.y + rect.height))
4457         {
4458             wxPoint objectPosition = linePosition;
4459             int maxDescent = line->GetDescent();
4460
4461             // Loop through objects until we get to the one within range
4462             wxRichTextObjectList::compatibility_iterator node2 = m_children.GetFirst();
4463
4464             int i = 0;
4465             while (node2)
4466             {
4467                 wxRichTextObject* child = node2->GetData();
4468
4469                 if (!child->IsFloating() && child->GetRange().GetLength() > 0 && !child->GetRange().IsOutside(lineRange) && !lineRange.IsOutside(range))
4470                 {
4471                     // Draw this part of the line at the correct position
4472                     wxRichTextRange objectRange(child->GetRange());
4473                     objectRange.LimitTo(lineRange);
4474
4475                     wxSize objectSize;
4476                     if (child->IsTopLevel())
4477                     {
4478                         objectSize = child->GetCachedSize();
4479                         objectRange = child->GetOwnRange();
4480                     }
4481                     else
4482                     {
4483 #if wxRICHTEXT_USE_OPTIMIZED_LINE_DRAWING && wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
4484                         if (i < (int) line->GetObjectSizes().GetCount())
4485                         {
4486                             objectSize.x = line->GetObjectSizes()[(size_t) i];
4487                         }
4488                         else
4489 #endif
4490                         {
4491                             int descent = 0;
4492                             child->GetRangeSize(objectRange, objectSize, descent, dc, context, wxRICHTEXT_UNFORMATTED, objectPosition);
4493                         }
4494                     }
4495
4496                     // Use the child object's width, but the whole line's height
4497                     wxRect childRect(objectPosition, wxSize(objectSize.x, line->GetSize().y));
4498                     child->Draw(dc, context, objectRange, selection, childRect, maxDescent, style);
4499
4500                     objectPosition.x += objectSize.x;
4501                     i ++;
4502                 }
4503                 else if (child->GetRange().GetStart() > lineRange.GetEnd())
4504                     // Can break out of inner loop now since we've passed this line's range
4505                     break;
4506
4507                 node2 = node2->GetNext();
4508             }
4509         }
4510
4511         node = node->GetNext();
4512     }
4513
4514     return true;
4515 }
4516
4517 // Get the range width using partial extents calculated for the whole paragraph.
4518 static int wxRichTextGetRangeWidth(const wxRichTextParagraph& para, const wxRichTextRange& range, const wxArrayInt& partialExtents)
4519 {
4520     wxASSERT(partialExtents.GetCount() >= (size_t) range.GetLength());
4521
4522     if (partialExtents.GetCount() < (size_t) range.GetLength())
4523         return 0;
4524
4525     int leftMostPos = 0;
4526     if (range.GetStart() - para.GetRange().GetStart() > 0)
4527         leftMostPos = partialExtents[range.GetStart() - para.GetRange().GetStart() - 1];
4528
4529     int rightMostPos = partialExtents[range.GetEnd() - para.GetRange().GetStart()];
4530
4531     int w = rightMostPos - leftMostPos;
4532
4533     return w;
4534 }
4535
4536 /// Lay the item out
4537 bool wxRichTextParagraph::Layout(wxDC& dc, wxRichTextDrawingContext& context, const wxRect& rect, const wxRect& parentRect, int style)
4538 {
4539     // Deal with floating objects firstly before the normal layout
4540     wxRichTextBuffer* buffer = GetBuffer();
4541     wxASSERT(buffer);
4542     wxRichTextFloatCollector* collector = GetContainer()->GetFloatCollector();
4543     wxASSERT(collector);
4544     LayoutFloat(dc, context, rect, style, collector);
4545
4546     wxRichTextAttr attr = GetCombinedAttributes();
4547     context.ApplyVirtualAttributes(attr, this);
4548
4549     // ClearLines();
4550
4551     // Increase the size of the paragraph due to spacing
4552     int spaceBeforePara = ConvertTenthsMMToPixels(dc, attr.GetParagraphSpacingBefore());
4553     int spaceAfterPara = ConvertTenthsMMToPixels(dc, attr.GetParagraphSpacingAfter());
4554     int leftIndent = ConvertTenthsMMToPixels(dc, attr.GetLeftIndent());
4555     int leftSubIndent = ConvertTenthsMMToPixels(dc, attr.GetLeftSubIndent());
4556     int rightIndent = ConvertTenthsMMToPixels(dc, attr.GetRightIndent());
4557
4558     int lineSpacing = 0;
4559
4560     // Let's assume line spacing of 10 is normal, 15 is 1.5, 20 is 2, etc.
4561     if (attr.HasLineSpacing() && attr.GetLineSpacing() > 0 && attr.GetFont().IsOk())
4562     {
4563         wxCheckSetFont(dc, attr.GetFont());
4564         lineSpacing = (int) (double(dc.GetCharHeight()) * (double(attr.GetLineSpacing())/10.0 - 1.0));
4565     }
4566
4567     // Start position for each line relative to the paragraph
4568     int startPositionFirstLine = leftIndent;
4569     int startPositionSubsequentLines = leftIndent + leftSubIndent;
4570
4571     // If we have a bullet in this paragraph, the start position for the first line's text
4572     // is actually leftIndent + leftSubIndent.
4573     if (attr.GetBulletStyle() != wxTEXT_ATTR_BULLET_STYLE_NONE)
4574         startPositionFirstLine = startPositionSubsequentLines;
4575
4576     long lastEndPos = GetRange().GetStart()-1;
4577     long lastCompletedEndPos = lastEndPos;
4578
4579     int currentWidth = 0;
4580     SetPosition(rect.GetPosition());
4581
4582     wxPoint currentPosition(0, spaceBeforePara); // We will calculate lines relative to paragraph
4583     int lineHeight = 0;
4584     int maxWidth = 0;
4585     int maxHeight = currentPosition.y;
4586     int maxAscent = 0;
4587     int maxDescent = 0;
4588     int lineCount = 0;
4589     int lineAscent = 0;
4590     int lineDescent = 0;
4591
4592     wxRichTextObjectList::compatibility_iterator node;
4593
4594 #if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
4595     wxUnusedVar(style);
4596     wxArrayInt partialExtents;
4597
4598     wxSize paraSize;
4599     int paraDescent = 0;
4600
4601     // This calculates the partial text extents
4602     GetRangeSize(GetRange(), paraSize, paraDescent, dc, context, wxRICHTEXT_UNFORMATTED|wxRICHTEXT_CACHE_SIZE, rect.GetPosition(), & partialExtents);
4603 #else
4604     node = m_children.GetFirst();
4605     while (node)
4606     {
4607         wxRichTextObject* child = node->GetData();
4608
4609         //child->SetCachedSize(wxDefaultSize);
4610         child->Layout(dc, context, rect, style);
4611
4612         node = node->GetNext();
4613     }
4614 #endif
4615
4616     // Split up lines
4617
4618     // We may need to go back to a previous child, in which case create the new line,
4619     // find the child corresponding to the start position of the string, and
4620     // continue.
4621
4622     wxRect availableRect;
4623
4624     node = m_children.GetFirst();
4625     while (node)
4626     {
4627         wxRichTextObject* child = node->GetData();
4628
4629         // If floating, ignore. We already laid out floats.
4630         // Also ignore if empty object, except if we haven't got any
4631         // size yet.
4632         if (child->IsFloating() || !child->IsShown() ||
4633             (child->GetRange().GetLength() == 0 && maxHeight > spaceBeforePara)
4634             )
4635         {
4636             node = node->GetNext();
4637             continue;
4638         }
4639
4640         // If this is e.g. a composite text box, it will need to be laid out itself.
4641         // But if just a text fragment or image, for example, this will
4642         // do nothing. NB: won't we need to set the position after layout?
4643         // since for example if position is dependent on vertical line size, we
4644         // can't tell the position until the size is determined. So possibly introduce
4645         // another layout phase.
4646
4647         // We may only be looking at part of a child, if we searched back for wrapping
4648         // and found a suitable point some way into the child. So get the size for the fragment
4649         // if necessary.
4650
4651         long nextBreakPos = GetFirstLineBreakPosition(lastEndPos+1);
4652         long lastPosToUse = child->GetRange().GetEnd();
4653         bool lineBreakInThisObject = (nextBreakPos > -1 && nextBreakPos <= child->GetRange().GetEnd());
4654
4655         if (lineBreakInThisObject)
4656             lastPosToUse = nextBreakPos;
4657
4658         wxSize childSize;
4659         int childDescent = 0;
4660
4661         int startOffset = (lineCount == 0 ? startPositionFirstLine : startPositionSubsequentLines);
4662         availableRect = wxRect(rect.x + startOffset, rect.y + currentPosition.y,
4663                                      rect.width - startOffset - rightIndent, rect.height);
4664
4665         if (child->IsTopLevel())
4666         {
4667             wxSize oldSize = child->GetCachedSize();
4668
4669             child->Invalidate(wxRICHTEXT_ALL);
4670             child->SetPosition(wxPoint(0, 0));
4671
4672             // Lays out the object first with a given amount of space, and then if no width was specified in attr,
4673             // lays out the object again using the minimum size
4674             // The position will be determined by its location in its line,
4675             // and not by the child's actual position.
4676             child->LayoutToBestSize(dc, context, buffer,
4677                     attr, child->GetAttributes(), availableRect, parentRect, style);
4678
4679             if (oldSize != child->GetCachedSize())
4680             {
4681                 partialExtents.Clear();
4682
4683                 // Recalculate the partial text extents since the child object changed size
4684                 GetRangeSize(GetRange(), paraSize, paraDescent, dc, context, wxRICHTEXT_UNFORMATTED|wxRICHTEXT_CACHE_SIZE, wxPoint(0,0), & partialExtents);
4685             }
4686         }
4687
4688         // Problem: we need to layout composites here for which we need the available width,
4689         // but we can't get the available width without using the float collector which
4690         // needs to know the object height.
4691
4692         if ((nextBreakPos == -1) && (lastEndPos == child->GetRange().GetStart() - 1)) // i.e. we want to get the whole thing
4693         {
4694             childSize = child->GetCachedSize();
4695             childDescent = child->GetDescent();
4696         }
4697         else
4698         {
4699 #if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
4700             // Get height only, then the width using the partial extents
4701             GetRangeSize(wxRichTextRange(lastEndPos+1, lastPosToUse), childSize, childDescent, dc, context, wxRICHTEXT_UNFORMATTED|wxRICHTEXT_HEIGHT_ONLY);
4702             childSize.x = wxRichTextGetRangeWidth(*this, wxRichTextRange(lastEndPos+1, lastPosToUse), partialExtents);
4703 #else
4704             GetRangeSize(wxRichTextRange(lastEndPos+1, lastPosToUse), childSize, childDescent, dc, context, wxRICHTEXT_UNFORMATTED, rect.GetPosition());
4705 #endif
4706         }
4707
4708         bool doLoop = true;
4709         int loopIterations = 0;
4710
4711         // If there are nested objects that need to lay themselves out, we have to do this in a
4712         // loop because the height of the object may well depend on the available width.
4713         // And because of floating object positioning, the available width depends on the
4714         // height of the object and whether it will clash with the floating objects.
4715         // So, we see whether the available width changes due to the presence of floating images.
4716         // If it does, then we'll use the new restricted width to find the object height again.
4717         // If this causes another restriction in the available width, we'll try again, until
4718         // either we lose patience or the available width settles down.
4719         do
4720         {
4721             loopIterations ++;
4722
4723             wxRect oldAvailableRect = availableRect;
4724
4725             // Available width depends on the floating objects and the line height.
4726             // Note: the floating objects may be placed vertically along the two sides of
4727             // buffer, so we may have different available line widths with different
4728             // [startY, endY]. So, we can't determine how wide the available
4729             // space is until we know the exact line height.
4730             if (childDescent == 0)
4731             {
4732                 lineHeight = wxMax(lineHeight, childSize.y);
4733                 lineDescent = maxDescent;
4734                 lineAscent = maxAscent;
4735             }
4736             else
4737             {
4738                 lineDescent = wxMax(childDescent, maxDescent);
4739                 lineAscent = wxMax(childSize.y-childDescent, maxAscent);
4740             }
4741             lineHeight = wxMax(lineHeight, (lineDescent + lineAscent));
4742             wxRect floatAvailableRect = collector->GetAvailableRect(rect.y + currentPosition.y, rect.y + currentPosition.y + lineHeight);
4743
4744             // Adjust availableRect to the space that is available when taking floating objects into account.
4745
4746             if (floatAvailableRect.x + startOffset > availableRect.x)
4747             {
4748                 int newX = floatAvailableRect.x + startOffset;
4749                 int newW = availableRect.width - (newX - availableRect.x);
4750                 availableRect.x = newX;
4751                 availableRect.width = newW;
4752             }
4753
4754             if (floatAvailableRect.width < availableRect.width)
4755                 availableRect.width = floatAvailableRect.width;
4756
4757             currentPosition.x = availableRect.x - rect.x;
4758
4759             if (child->IsTopLevel() && loopIterations <= 20)
4760             {
4761                 if (availableRect != oldAvailableRect)
4762                 {
4763                     wxSize oldSize = child->GetCachedSize();
4764
4765                     // Lays out the object first with a given amount of space, and then if no width was specified in attr,
4766                     // lays out the object again using the minimum size
4767                     child->Invalidate(wxRICHTEXT_ALL);
4768                     child->LayoutToBestSize(dc, context, buffer,
4769                                 attr, child->GetAttributes(), availableRect, parentRect, style);
4770                     childSize = child->GetCachedSize();
4771                     childDescent = child->GetDescent();
4772
4773                     if (oldSize != child->GetCachedSize())
4774                     {
4775                         partialExtents.Clear();
4776
4777                         // Recalculate the partial text extents since the child object changed size
4778                         GetRangeSize(GetRange(), paraSize, paraDescent, dc, context, wxRICHTEXT_UNFORMATTED|wxRICHTEXT_CACHE_SIZE, wxPoint(0,0), & partialExtents);
4779                     }
4780
4781                     // Go around the loop finding the available rect for the given floating objects
4782                 }
4783                 else
4784                     doLoop = false;
4785             }
4786             else
4787                 doLoop = false;
4788         }
4789         while (doLoop);
4790
4791         if (child->IsTopLevel())
4792         {
4793             // We can move it to the correct position at this point
4794             // TODO: probably need to add margin
4795             child->Move(GetPosition() + wxPoint(currentWidth + (wxMax(leftIndent, leftIndent + leftSubIndent)), currentPosition.y));
4796         }
4797
4798         // Cases:
4799         // 1) There was a line break BEFORE the natural break
4800         // 2) There was a line break AFTER the natural break
4801         // 3) It's the last line
4802         // 4) The child still fits (carry on) - 'else' clause
4803
4804         if ((lineBreakInThisObject && (childSize.x + currentWidth <= availableRect.width))
4805             ||
4806             (childSize.x + currentWidth > availableRect.width)
4807             ||
4808             ((childSize.x + currentWidth <= availableRect.width) && !node->GetNext())
4809
4810             )
4811         {
4812             long wrapPosition = 0;
4813             if ((childSize.x + currentWidth <= availableRect.width) && !node->GetNext() && !lineBreakInThisObject)
4814                 wrapPosition = child->GetRange().GetEnd();
4815             else
4816
4817             // Find a place to wrap. This may walk back to previous children,
4818             // for example if a word spans several objects.
4819             // Note: one object must contains only one wxTextAtrr, so the line height will not
4820             //       change inside one object. Thus, we can pass the remain line width to the
4821             //       FindWrapPosition function.
4822             if (!FindWrapPosition(wxRichTextRange(lastCompletedEndPos+1, child->GetRange().GetEnd()), dc, context, availableRect.width, wrapPosition, & partialExtents))
4823             {
4824                 // If the function failed, just cut it off at the end of this child.
4825                 wrapPosition = child->GetRange().GetEnd();
4826             }
4827
4828             // FindWrapPosition can still return a value that will put us in an endless wrapping loop
4829             if (wrapPosition <= lastCompletedEndPos)
4830                 wrapPosition = wxMax(lastCompletedEndPos+1,child->GetRange().GetEnd());
4831
4832             // Line end position shouldn't be the same as the end, or greater.
4833             if (wrapPosition >= GetRange().GetEnd())
4834                 wrapPosition = wxMax(0, GetRange().GetEnd()-1);
4835
4836             // wxLogDebug(wxT("Split at %ld"), wrapPosition);
4837
4838             // Let's find the actual size of the current line now
4839             wxSize actualSize;
4840             wxRichTextRange actualRange(lastCompletedEndPos+1, wrapPosition);
4841
4842             childDescent = 0;
4843
4844 #if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
4845             if (!child->IsEmpty())
4846             {
4847                 // Get height only, then the width using the partial extents
4848                 GetRangeSize(actualRange, actualSize, childDescent, dc, context, wxRICHTEXT_UNFORMATTED|wxRICHTEXT_HEIGHT_ONLY);
4849                 actualSize.x = wxRichTextGetRangeWidth(*this, actualRange, partialExtents);
4850             }
4851             else
4852 #endif
4853                 GetRangeSize(actualRange, actualSize, childDescent, dc, context, wxRICHTEXT_UNFORMATTED);
4854
4855             currentWidth = actualSize.x;
4856
4857             // The descent for the whole line at this point, is the correct max descent
4858             maxDescent = childDescent;
4859             // Maximum ascent
4860             maxAscent = actualSize.y-childDescent;
4861
4862             // lineHeight is given by the height for the whole line, since it will
4863             // take into account ascend/descend.
4864             lineHeight = actualSize.y;
4865
4866             if (lineHeight == 0 && buffer)
4867             {
4868                 wxFont font(buffer->GetFontTable().FindFont(attr));
4869                 wxCheckSetFont(dc, font);
4870                 lineHeight = dc.GetCharHeight();
4871             }
4872
4873             if (maxDescent == 0)
4874             {
4875                 int w, h;
4876                 dc.GetTextExtent(wxT("X"), & w, &h, & maxDescent);
4877             }
4878
4879             // Add a new line
4880             wxRichTextLine* line = AllocateLine(lineCount);
4881
4882             // Set relative range so we won't have to change line ranges when paragraphs are moved
4883             line->SetRange(wxRichTextRange(actualRange.GetStart() - GetRange().GetStart(), actualRange.GetEnd() - GetRange().GetStart()));
4884             line->SetPosition(currentPosition);
4885             line->SetSize(wxSize(currentWidth, lineHeight));
4886             line->SetDescent(maxDescent);
4887
4888             maxHeight = currentPosition.y + lineHeight;
4889
4890             // Now move down a line. TODO: add margins, spacing
4891             currentPosition.y += lineHeight;
4892             currentPosition.y += lineSpacing;
4893             maxDescent = 0;
4894             maxAscent = 0;
4895             maxWidth = wxMax(maxWidth, currentWidth+startOffset);
4896             currentWidth = 0;
4897
4898             lineCount ++;
4899
4900             // TODO: account for zero-length objects
4901             // wxASSERT(wrapPosition > lastCompletedEndPos);
4902
4903             lastEndPos = wrapPosition;
4904             lastCompletedEndPos = lastEndPos;
4905
4906             lineHeight = 0;
4907
4908             if (wrapPosition < GetRange().GetEnd()-1)
4909             {
4910                 // May need to set the node back to a previous one, due to searching back in wrapping
4911                 wxRichTextObject* childAfterWrapPosition = FindObjectAtPosition(wrapPosition+1);
4912                 if (childAfterWrapPosition)
4913                     node = m_children.Find(childAfterWrapPosition);
4914                 else
4915                     node = node->GetNext();
4916             }
4917             else
4918                 node = node->GetNext();
4919
4920             // Apply paragraph styles such as alignment to the wrapped line
4921             ApplyParagraphStyle(line, attr, availableRect, dc);
4922         }
4923         else
4924         {
4925             // We still fit, so don't add a line, and keep going
4926             currentWidth += childSize.x;
4927
4928             if (childDescent == 0)
4929             {
4930                 // An object with a zero descend value wants to take up the whole
4931                 // height regardless of baseline
4932                 lineHeight = wxMax(lineHeight, childSize.y);
4933             }
4934             else
4935             {
4936                 maxDescent = wxMax(childDescent, maxDescent);
4937                 maxAscent = wxMax(childSize.y-childDescent, maxAscent);
4938             }
4939
4940             lineHeight = wxMax(lineHeight, (maxDescent + maxAscent));
4941
4942             maxWidth = wxMax(maxWidth, currentWidth+startOffset);
4943             lastEndPos = child->GetRange().GetEnd();
4944
4945             node = node->GetNext();
4946         }
4947     }
4948
4949     //wxASSERT(!(lastCompletedEndPos != -1 && lastCompletedEndPos < GetRange().GetEnd()-1));
4950
4951     // Remove remaining unused line objects, if any
4952     ClearUnusedLines(lineCount);
4953
4954     // We need to add back the margins etc.
4955     {
4956         wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
4957         contentRect = wxRect(wxPoint(0, 0), wxSize(maxWidth, currentPosition.y + spaceAfterPara));
4958         GetBoxRects(dc, buffer, attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
4959         SetCachedSize(marginRect.GetSize());
4960     }
4961
4962     // The maximum size is the length of the paragraph stretched out into a line.
4963     // So if there were a single word, or an image, or a fixed-size text box, the object could be shrunk around
4964     // this size. TODO: take into account line breaks.
4965     {
4966         wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
4967         contentRect = wxRect(wxPoint(0, 0), wxSize(paraSize.x + wxMax(leftIndent, leftIndent + leftSubIndent) + rightIndent, currentPosition.y + spaceAfterPara));
4968         GetBoxRects(dc, buffer, attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
4969         SetMaxSize(marginRect.GetSize());
4970     }
4971
4972     // Find the greatest minimum size. Currently we only look at non-text objects,
4973     // which isn't ideal but it would be slow to find the maximum word width to
4974     // use as the minimum.
4975     {
4976         int minWidth = 0;
4977         node = m_children.GetFirst();
4978         while (node)
4979         {
4980             wxRichTextObject* child = node->GetData();
4981
4982             // If floating, ignore. We already laid out floats.
4983             // Also ignore if empty object, except if we haven't got any
4984             // size yet.
4985             if (!child->IsFloating() && child->GetRange().GetLength() != 0 && !wxDynamicCast(child, wxRichTextPlainText))
4986             {
4987                 if (child->GetCachedSize().x > minWidth)
4988                     minWidth = child->GetMinSize().x;
4989             }
4990             node = node->GetNext();
4991         }
4992
4993         wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
4994         contentRect = wxRect(wxPoint(0, 0), wxSize(minWidth, currentPosition.y + spaceAfterPara));
4995         GetBoxRects(dc, buffer, attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
4996         SetMinSize(marginRect.GetSize());
4997     }
4998
4999 #if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
5000 #if wxRICHTEXT_USE_OPTIMIZED_LINE_DRAWING
5001     // Use the text extents to calculate the size of each fragment in each line
5002     wxRichTextLineList::compatibility_iterator lineNode = m_cachedLines.GetFirst();
5003     while (lineNode)
5004     {
5005         wxRichTextLine* line = lineNode->GetData();
5006         wxRichTextRange lineRange = line->GetAbsoluteRange();
5007
5008         // Loop through objects until we get to the one within range
5009         wxRichTextObjectList::compatibility_iterator node2 = m_children.GetFirst();
5010
5011         while (node2)
5012         {
5013             wxRichTextObject* child = node2->GetData();
5014
5015             if (child->GetRange().GetLength() > 0 && !child->GetRange().IsOutside(lineRange))
5016             {
5017                 wxRichTextRange rangeToUse = lineRange;
5018                 rangeToUse.LimitTo(child->GetRange());
5019
5020                 // Find the size of the child from the text extents, and store in an array
5021                 // for drawing later
5022                 int left = 0;
5023                 if (rangeToUse.GetStart() > GetRange().GetStart())
5024                     left = partialExtents[(rangeToUse.GetStart()-1) - GetRange().GetStart()];
5025                 int right = partialExtents[rangeToUse.GetEnd() - GetRange().GetStart()];
5026                 int sz = right - left;
5027                 line->GetObjectSizes().Add(sz);
5028             }
5029             else if (child->GetRange().GetStart() > lineRange.GetEnd())
5030                 // Can break out of inner loop now since we've passed this line's range
5031                 break;
5032
5033             node2 = node2->GetNext();
5034         }
5035
5036         lineNode = lineNode->GetNext();
5037     }
5038 #endif
5039 #endif
5040
5041     return true;
5042 }
5043
5044 /// Apply paragraph styles, such as centering, to wrapped lines
5045 /// TODO: take into account box attributes, possibly
5046 void wxRichTextParagraph::ApplyParagraphStyle(wxRichTextLine* line, const wxRichTextAttr& attr, const wxRect& rect, wxDC& dc)
5047 {
5048     if (!attr.HasAlignment())
5049         return;
5050
5051     wxPoint pos = line->GetPosition();
5052     wxPoint originalPos = pos;
5053     wxSize size = line->GetSize();
5054
5055     // centering, right-justification
5056     if (attr.HasAlignment() && attr.GetAlignment() == wxTEXT_ALIGNMENT_CENTRE)
5057     {
5058         int rightIndent = ConvertTenthsMMToPixels(dc, attr.GetRightIndent());
5059         pos.x = (rect.GetWidth() - rightIndent - size.x)/2 + pos.x;
5060         line->SetPosition(pos);
5061     }
5062     else if (attr.HasAlignment() && attr.GetAlignment() == wxTEXT_ALIGNMENT_RIGHT)
5063     {
5064         int rightIndent = ConvertTenthsMMToPixels(dc, attr.GetRightIndent());
5065         pos.x = pos.x + rect.GetWidth() - size.x - rightIndent;
5066         line->SetPosition(pos);
5067     }
5068
5069     if (pos != originalPos)
5070     {
5071         wxPoint inc = pos - originalPos;
5072
5073         wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
5074
5075         while (node)
5076         {
5077             wxRichTextObject* child = node->GetData();
5078             if (child->IsTopLevel() && !child->GetRange().IsOutside(line->GetAbsoluteRange()))
5079                 child->Move(child->GetPosition() + inc);
5080
5081             node = node->GetNext();
5082         }
5083     }
5084 }
5085
5086 /// Insert text at the given position
5087 bool wxRichTextParagraph::InsertText(long pos, const wxString& text)
5088 {
5089     wxRichTextObject* childToUse = NULL;
5090     wxRichTextObjectList::compatibility_iterator nodeToUse = wxRichTextObjectList::compatibility_iterator();
5091
5092     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
5093     while (node)
5094     {
5095         wxRichTextObject* child = node->GetData();
5096         if (child->GetRange().Contains(pos) && child->GetRange().GetLength() > 0)
5097         {
5098             childToUse = child;
5099             nodeToUse = node;
5100             break;
5101         }
5102
5103         node = node->GetNext();
5104     }
5105
5106     if (childToUse)
5107     {
5108         wxRichTextPlainText* textObject = wxDynamicCast(childToUse, wxRichTextPlainText);
5109         if (textObject)
5110         {
5111             int posInString = pos - textObject->GetRange().GetStart();
5112
5113             wxString newText = textObject->GetText().Mid(0, posInString) +
5114                                text + textObject->GetText().Mid(posInString);
5115             textObject->SetText(newText);
5116
5117             int textLength = text.length();
5118
5119             textObject->SetRange(wxRichTextRange(textObject->GetRange().GetStart(),
5120                                                  textObject->GetRange().GetEnd() + textLength));
5121
5122             // Increment the end range of subsequent fragments in this paragraph.
5123             // We'll set the paragraph range itself at a higher level.
5124
5125             wxRichTextObjectList::compatibility_iterator node = nodeToUse->GetNext();
5126             while (node)
5127             {
5128                 wxRichTextObject* child = node->GetData();
5129                 child->SetRange(wxRichTextRange(textObject->GetRange().GetStart() + textLength,
5130                                                  textObject->GetRange().GetEnd() + textLength));
5131
5132                 node = node->GetNext();
5133             }
5134
5135             return true;
5136         }
5137         else
5138         {
5139             // TODO: if not a text object, insert at closest position, e.g. in front of it
5140         }
5141     }
5142     else
5143     {
5144         // Add at end.
5145         // Don't pass parent initially to suppress auto-setting of parent range.
5146         // We'll do that at a higher level.
5147         wxRichTextPlainText* textObject = new wxRichTextPlainText(text, this);
5148
5149         AppendChild(textObject);
5150         return true;
5151     }
5152
5153     return false;
5154 }
5155
5156 void wxRichTextParagraph::Copy(const wxRichTextParagraph& obj)
5157 {
5158     wxRichTextCompositeObject::Copy(obj);
5159 }
5160
5161 /// Clear the cached lines
5162 void wxRichTextParagraph::ClearLines()
5163 {
5164     WX_CLEAR_LIST(wxRichTextLineList, m_cachedLines);
5165 }
5166
5167 /// Get/set the object size for the given range. Returns false if the range
5168 /// is invalid for this object.
5169 bool wxRichTextParagraph::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, wxRichTextDrawingContext& context, int flags, wxPoint position, wxArrayInt* partialExtents) const
5170 {
5171     if (!range.IsWithin(GetRange()))
5172         return false;
5173
5174     if (flags & wxRICHTEXT_UNFORMATTED)
5175     {
5176         // Just use unformatted data, assume no line breaks
5177         wxSize sz;
5178
5179         wxArrayInt childExtents;
5180         wxArrayInt* p;
5181         if (partialExtents)
5182             p = & childExtents;
5183         else
5184             p = NULL;
5185
5186         int maxDescent = 0;
5187         int maxAscent = 0;
5188         int maxLineHeight = 0;
5189
5190         wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
5191         while (node)
5192         {
5193             wxRichTextObject* child = node->GetData();
5194             if (!child->GetRange().IsOutside(range))
5195             {
5196                 // Floating objects have a zero size within the paragraph.
5197                 if (child->IsFloating())
5198                 {
5199                     if (partialExtents)
5200                     {
5201                         int lastSize;
5202                         if (partialExtents->GetCount() > 0)
5203                             lastSize = (*partialExtents)[partialExtents->GetCount()-1];
5204                         else
5205                             lastSize = 0;
5206
5207                         partialExtents->Add(0 /* zero size */ + lastSize);
5208                     }
5209                 }
5210                 else
5211                 {
5212                     wxSize childSize;
5213
5214                     wxRichTextRange rangeToUse = range;
5215                     rangeToUse.LimitTo(child->GetRange());
5216                     int childDescent = 0;
5217
5218                     // At present wxRICHTEXT_HEIGHT_ONLY is only fast if we've already cached the size,
5219                     // but it's only going to be used after caching has taken place.
5220                     if ((flags & wxRICHTEXT_HEIGHT_ONLY) && child->GetCachedSize().y != 0)
5221                     {
5222                         childDescent = child->GetDescent();
5223                         childSize = child->GetCachedSize();
5224
5225                         if (childDescent == 0)
5226                         {
5227                             maxLineHeight = wxMax(maxLineHeight, childSize.y);
5228                         }
5229                         else
5230                         {
5231                             maxDescent = wxMax(maxDescent, childDescent);
5232                             maxAscent = wxMax(maxAscent, (childSize.y - childDescent));
5233                         }
5234
5235                         maxLineHeight = wxMax(maxLineHeight, (maxAscent + maxDescent));
5236
5237                         sz.y = wxMax(sz.y, maxLineHeight);
5238                         sz.x += childSize.x;
5239                         descent = maxDescent;
5240                     }
5241                     else if (child->IsTopLevel())
5242                     {
5243                         childDescent = child->GetDescent();
5244                         childSize = child->GetCachedSize();
5245
5246                         if (childDescent == 0)
5247                         {
5248                             maxLineHeight = wxMax(maxLineHeight, childSize.y);
5249                         }
5250                         else
5251                         {
5252                             maxDescent = wxMax(maxDescent, childDescent);
5253                             maxAscent = wxMax(maxAscent, (childSize.y - childDescent));
5254                         }
5255
5256                         maxLineHeight = wxMax(maxLineHeight, (maxAscent + maxDescent));
5257
5258                         sz.y = wxMax(sz.y, maxLineHeight);
5259                         sz.x += childSize.x;
5260                         descent = maxDescent;
5261
5262                         // FIXME: this won't change the original values.
5263                         // Should we be calling GetRangeSize above instead of using cached values?
5264 #if 0
5265                         if ((flags & wxRICHTEXT_CACHE_SIZE) && (rangeToUse == child->GetRange()))
5266                         {
5267                             child->SetCachedSize(childSize);
5268                             child->SetDescent(childDescent);
5269                         }
5270 #endif
5271
5272                         if (partialExtents)
5273                         {
5274                             int lastSize;
5275                             if (partialExtents->GetCount() > 0)
5276                                 lastSize = (*partialExtents)[partialExtents->GetCount()-1];
5277                             else
5278                                 lastSize = 0;
5279
5280                             partialExtents->Add(childSize.x + lastSize);
5281                         }
5282                     }
5283                     else if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, context, flags, wxPoint(position.x + sz.x, position.y), p))
5284                     {
5285                         if (childDescent == 0)
5286                         {
5287                             maxLineHeight = wxMax(maxLineHeight, childSize.y);
5288                         }
5289                         else
5290                         {
5291                             maxDescent = wxMax(maxDescent, childDescent);
5292                             maxAscent = wxMax(maxAscent, (childSize.y - childDescent));
5293                         }
5294
5295                         maxLineHeight = wxMax(maxLineHeight, (maxAscent + maxDescent));
5296
5297                         sz.y = wxMax(sz.y, maxLineHeight);
5298                         sz.x += childSize.x;
5299                         descent = maxDescent;
5300
5301                         if ((flags & wxRICHTEXT_CACHE_SIZE) && (rangeToUse == child->GetRange()))
5302                         {
5303                             child->SetCachedSize(childSize);
5304                             child->SetDescent(childDescent);
5305                         }
5306
5307                         if (partialExtents)
5308                         {
5309                             int lastSize;
5310                             if (partialExtents->GetCount() > 0)
5311                                 lastSize = (*partialExtents)[partialExtents->GetCount()-1];
5312                             else
5313                                 lastSize = 0;
5314
5315                             size_t i;
5316                             for (i = 0; i < childExtents.GetCount(); i++)
5317                             {
5318                                 partialExtents->Add(childExtents[i] + lastSize);
5319                             }
5320                         }
5321                     }
5322                 }
5323
5324                 if (p)
5325                     p->Clear();
5326             }
5327
5328             node = node->GetNext();
5329         }
5330         size = sz;
5331     }
5332     else
5333     {
5334         // Use formatted data, with line breaks
5335         wxSize sz;
5336
5337         // We're going to loop through each line, and then for each line,
5338         // call GetRangeSize for the fragment that comprises that line.
5339         // Only we have to do that multiple times within the line, because
5340         // the line may be broken into pieces. For now ignore line break commands
5341         // (so we can assume that getting the unformatted size for a fragment
5342         // within a line is the actual size)
5343
5344         wxRichTextLineList::compatibility_iterator node = m_cachedLines.GetFirst();
5345         while (node)
5346         {
5347             wxRichTextLine* line = node->GetData();
5348             wxRichTextRange lineRange = line->GetAbsoluteRange();
5349             if (!lineRange.IsOutside(range))
5350             {
5351                 int maxDescent = 0;
5352                 int maxAscent = 0;
5353                 int maxLineHeight = 0;
5354                 int maxLineWidth = 0;
5355
5356                 wxRichTextObjectList::compatibility_iterator node2 = m_children.GetFirst();
5357                 while (node2)
5358                 {
5359                     wxRichTextObject* child = node2->GetData();
5360
5361                     if (!child->IsFloating() && !child->GetRange().IsOutside(lineRange))
5362                     {
5363                         wxRichTextRange rangeToUse = lineRange;
5364                         rangeToUse.LimitTo(child->GetRange());
5365                         if (child->IsTopLevel())
5366                             rangeToUse = child->GetOwnRange();
5367
5368                         wxSize childSize;
5369                         int childDescent = 0;
5370                         if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, context, flags, wxPoint(position.x + sz.x, position.y)))
5371                         {
5372                             if (childDescent == 0)
5373                             {
5374                                 // Assume that if descent is zero, this child can occupy the full line height
5375                                 // and does not need space for the line's maximum descent. So we influence
5376                                 // the overall max line height only.
5377                                 maxLineHeight = wxMax(maxLineHeight, childSize.y);
5378                             }
5379                             else
5380                             {
5381                                 maxAscent = wxMax(maxAscent, (childSize.y - childDescent));
5382                                 maxDescent = wxMax(maxAscent, childDescent);
5383                             }
5384                             maxLineHeight = wxMax(maxLineHeight, (maxAscent + maxDescent));
5385                             maxLineWidth += childSize.x;
5386                         }
5387                     }
5388
5389                     node2 = node2->GetNext();
5390                 }
5391
5392                 descent = wxMax(descent, maxDescent);
5393
5394                 // Increase size by a line (TODO: paragraph spacing)
5395                 sz.y += maxLineHeight;
5396                 sz.x = wxMax(sz.x, maxLineWidth);
5397             }
5398             node = node->GetNext();
5399         }
5400         size = sz;
5401     }
5402     return true;
5403 }
5404
5405 /// Finds the absolute position and row height for the given character position
5406 bool wxRichTextParagraph::FindPosition(wxDC& dc, wxRichTextDrawingContext& context, long index, wxPoint& pt, int* height, bool forceLineStart)
5407 {
5408     if (index == -1)
5409     {
5410         wxRichTextLine* line = ((wxRichTextParagraphLayoutBox*)GetParent())->GetLineAtPosition(0);
5411         if (line)
5412             *height = line->GetSize().y;
5413         else
5414             *height = dc.GetCharHeight();
5415
5416         // -1 means 'the start of the buffer'.
5417         pt = GetPosition();
5418         if (line)
5419             pt = pt + line->GetPosition();
5420
5421         return true;
5422     }
5423
5424     // The final position in a paragraph is taken to mean the position
5425     // at the start of the next paragraph.
5426     if (index == GetRange().GetEnd())
5427     {
5428         wxRichTextParagraphLayoutBox* parent = wxDynamicCast(GetParent(), wxRichTextParagraphLayoutBox);
5429         wxASSERT( parent != NULL );
5430
5431         // Find the height at the next paragraph, if any
5432         wxRichTextLine* line = parent->GetLineAtPosition(index + 1);
5433         if (line)
5434         {
5435             *height = line->GetSize().y;
5436             pt = line->GetAbsolutePosition();
5437         }
5438         else
5439         {
5440             *height = dc.GetCharHeight();
5441             int indent = ConvertTenthsMMToPixels(dc, m_attributes.GetLeftIndent());
5442             pt = wxPoint(indent, GetCachedSize().y);
5443         }
5444
5445         return true;
5446     }
5447
5448     if (index < GetRange().GetStart() || index > GetRange().GetEnd())
5449         return false;
5450
5451     wxRichTextLineList::compatibility_iterator node = m_cachedLines.GetFirst();
5452     while (node)
5453     {
5454         wxRichTextLine* line = node->GetData();
5455         wxRichTextRange lineRange = line->GetAbsoluteRange();
5456         if (index >= lineRange.GetStart() && index <= lineRange.GetEnd())
5457         {
5458             // If this is the last point in the line, and we're forcing the
5459             // returned value to be the start of the next line, do the required
5460             // thing.
5461             if (index == lineRange.GetEnd() && forceLineStart)
5462             {
5463                 if (node->GetNext())
5464                 {
5465                     wxRichTextLine* nextLine = node->GetNext()->GetData();
5466                     *height = nextLine->GetSize().y;
5467                     pt = nextLine->GetAbsolutePosition();
5468                     return true;
5469                 }
5470             }
5471
5472             pt.y = line->GetPosition().y + GetPosition().y;
5473
5474             wxRichTextRange r(lineRange.GetStart(), index);
5475             wxSize rangeSize;
5476             int descent = 0;
5477
5478             // We find the size of the line up to this point,
5479             // then we can add this size to the line start position and
5480             // paragraph start position to find the actual position.
5481
5482             if (GetRangeSize(r, rangeSize, descent, dc, context, wxRICHTEXT_UNFORMATTED, line->GetPosition()+ GetPosition()))
5483             {
5484                 pt.x = line->GetPosition().x + GetPosition().x + rangeSize.x;
5485                 *height = line->GetSize().y;
5486
5487                 return true;
5488             }
5489
5490         }
5491
5492         node = node->GetNext();
5493     }
5494
5495     return false;
5496 }
5497
5498 /// Hit-testing: returns a flag indicating hit test details, plus
5499 /// information about position
5500 int wxRichTextParagraph::HitTest(wxDC& dc, wxRichTextDrawingContext& context, const wxPoint& pt, long& textPosition, wxRichTextObject** obj, wxRichTextObject** contextObj, int flags)
5501 {
5502     if (!IsShown())
5503         return wxRICHTEXT_HITTEST_NONE;
5504
5505     // If we're in the top-level container, then we can return
5506     // a suitable hit test code even if the point is outside the container area,
5507     // so that we can position the caret sensibly even if we don't
5508     // click on valid content. If we're not at the top-level, and the point
5509     // is not within this paragraph object, then we don't want to stop more
5510     // precise hit-testing from working prematurely, so return immediately.
5511     // NEW STRATEGY: use the parent boundary to test whether we're in the
5512     // right region, not the paragraph, since the paragraph may be positioned
5513     // some way in from where the user clicks.
5514     {
5515         long tmpPos;
5516         wxRichTextObject* tempObj, *tempContextObj;
5517         if (GetParent() && GetParent()->wxRichTextObject::HitTest(dc, context, pt, tmpPos, & tempObj, & tempContextObj, flags) == wxRICHTEXT_HITTEST_NONE)
5518             return wxRICHTEXT_HITTEST_NONE;
5519     }
5520
5521     wxRichTextObjectList::compatibility_iterator objNode = m_children.GetFirst();
5522     while (objNode)
5523     {
5524         wxRichTextObject* child = objNode->GetData();
5525         // Don't recurse if we have wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS,
5526         // and also, if this seems composite but actually is marked as atomic,
5527         // don't recurse.
5528         if (child->IsTopLevel() && ((flags & wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS) == 0) &&
5529             (! (((flags & wxRICHTEXT_HITTEST_HONOUR_ATOMIC) != 0) && child->IsAtomic())))
5530         {
5531             {
5532                 int hitTest = child->HitTest(dc, context, pt, textPosition, obj, contextObj);
5533                 if (hitTest != wxRICHTEXT_HITTEST_NONE)
5534                     return hitTest;
5535             }
5536         }
5537
5538         objNode = objNode->GetNext();
5539     }
5540
5541     wxPoint paraPos = GetPosition();
5542
5543     wxRichTextLineList::compatibility_iterator node = m_cachedLines.GetFirst();
5544     while (node)
5545     {
5546         wxRichTextLine* line = node->GetData();
5547         wxPoint linePos = paraPos + line->GetPosition();
5548         wxSize lineSize = line->GetSize();
5549         wxRichTextRange lineRange = line->GetAbsoluteRange();
5550
5551         if (pt.y <= linePos.y + lineSize.y)
5552         {
5553             if (pt.x < linePos.x)
5554             {
5555                 textPosition = lineRange.GetStart();
5556                 *obj = FindObjectAtPosition(textPosition);
5557                 *contextObj = GetContainer();
5558                 return wxRICHTEXT_HITTEST_BEFORE|wxRICHTEXT_HITTEST_OUTSIDE;
5559             }
5560             else if (pt.x >= (linePos.x + lineSize.x))
5561             {
5562                 textPosition = lineRange.GetEnd();
5563                 *obj = FindObjectAtPosition(textPosition);
5564                 *contextObj = GetContainer();
5565                 return wxRICHTEXT_HITTEST_AFTER|wxRICHTEXT_HITTEST_OUTSIDE;
5566             }
5567             else
5568             {
5569 #if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
5570                 wxArrayInt partialExtents;
5571
5572                 wxSize paraSize;
5573                 int paraDescent;
5574
5575                 // This calculates the partial text extents
5576                 GetRangeSize(lineRange, paraSize, paraDescent, dc, context, wxRICHTEXT_UNFORMATTED, linePos, & partialExtents);
5577
5578                 int lastX = linePos.x;
5579                 size_t i;
5580                 for (i = 0; i < partialExtents.GetCount(); i++)
5581                 {
5582                     int nextX = partialExtents[i] + linePos.x;
5583
5584                     if (pt.x >= lastX && pt.x <= nextX)
5585                     {
5586                         textPosition = i + lineRange.GetStart(); // minus 1?
5587
5588                         *obj = FindObjectAtPosition(textPosition);
5589                         *contextObj = GetContainer();
5590
5591                         // So now we know it's between i-1 and i.
5592                         // Let's see if we can be more precise about
5593                         // which side of the position it's on.
5594
5595                         int midPoint = (nextX + lastX)/2;
5596                         if (pt.x >= midPoint)
5597                             return wxRICHTEXT_HITTEST_AFTER;
5598                         else
5599                             return wxRICHTEXT_HITTEST_BEFORE;
5600                     }
5601
5602                     lastX = nextX;
5603                 }
5604 #else
5605                 long i;
5606                 int lastX = linePos.x;
5607                 for (i = lineRange.GetStart(); i <= lineRange.GetEnd(); i++)
5608                 {
5609                     wxSize childSize;
5610                     int descent = 0;
5611
5612                     wxRichTextRange rangeToUse(lineRange.GetStart(), i);
5613
5614                     GetRangeSize(rangeToUse, childSize, descent, dc, context, wxRICHTEXT_UNFORMATTED, linePos);
5615
5616                     int nextX = childSize.x + linePos.x;
5617
5618                     if (pt.x >= lastX && pt.x <= nextX)
5619                     {
5620                         textPosition = i;
5621
5622                         *obj = FindObjectAtPosition(textPosition);
5623                         *contextObj = GetContainer();
5624
5625                         // So now we know it's between i-1 and i.
5626                         // Let's see if we can be more precise about
5627                         // which side of the position it's on.
5628
5629                         int midPoint = (nextX + lastX)/2;
5630                         if (pt.x >= midPoint)
5631                             return wxRICHTEXT_HITTEST_AFTER;
5632                         else
5633                             return wxRICHTEXT_HITTEST_BEFORE;
5634                     }
5635                     else
5636                     {
5637                         lastX = nextX;
5638                     }
5639                 }
5640 #endif
5641             }
5642         }
5643
5644         node = node->GetNext();
5645     }
5646
5647     return wxRICHTEXT_HITTEST_NONE;
5648 }
5649
5650 /// Split an object at this position if necessary, and return
5651 /// the previous object, or NULL if inserting at beginning.
5652 wxRichTextObject* wxRichTextParagraph::SplitAt(long pos, wxRichTextObject** previousObject)
5653 {
5654     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
5655     while (node)
5656     {
5657         wxRichTextObject* child = node->GetData();
5658
5659         if (pos == child->GetRange().GetStart())
5660         {
5661             if (previousObject)
5662             {
5663                 if (node->GetPrevious())
5664                     *previousObject = node->GetPrevious()->GetData();
5665                 else
5666                     *previousObject = NULL;
5667             }
5668
5669             return child;
5670         }
5671
5672         if (child->GetRange().Contains(pos))
5673         {
5674             // This should create a new object, transferring part of
5675             // the content to the old object and the rest to the new object.
5676             wxRichTextObject* newObject = child->DoSplit(pos);
5677
5678             // If we couldn't split this object, just insert in front of it.
5679             if (!newObject)
5680             {
5681                 // Maybe this is an empty string, try the next one
5682                 // return child;
5683             }
5684             else
5685             {
5686                 // Insert the new object after 'child'
5687                 if (node->GetNext())
5688                     m_children.Insert(node->GetNext(), newObject);
5689                 else
5690                     m_children.Append(newObject);
5691                 newObject->SetParent(this);
5692
5693                 if (previousObject)
5694                     *previousObject = child;
5695
5696                 return newObject;
5697             }
5698         }
5699
5700         node = node->GetNext();
5701     }
5702     if (previousObject)
5703         *previousObject = NULL;
5704     return NULL;
5705 }
5706
5707 /// Move content to a list from obj on
5708 void wxRichTextParagraph::MoveToList(wxRichTextObject* obj, wxList& list)
5709 {
5710     wxRichTextObjectList::compatibility_iterator node = m_children.Find(obj);
5711     while (node)
5712     {
5713         wxRichTextObject* child = node->GetData();
5714         list.Append(child);
5715
5716         wxRichTextObjectList::compatibility_iterator oldNode = node;
5717
5718         node = node->GetNext();
5719
5720         m_children.DeleteNode(oldNode);
5721     }
5722 }
5723
5724 /// Add content back from list
5725 void wxRichTextParagraph::MoveFromList(wxList& list)
5726 {
5727     for (wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext())
5728     {
5729         AppendChild((wxRichTextObject*) node->GetData());
5730     }
5731 }
5732
5733 /// Calculate range
5734 void wxRichTextParagraph::CalculateRange(long start, long& end)
5735 {
5736     wxRichTextCompositeObject::CalculateRange(start, end);
5737
5738     // Add one for end of paragraph
5739     end ++;
5740
5741     m_range.SetRange(start, end);
5742 }
5743
5744 /// Find the object at the given position
5745 wxRichTextObject* wxRichTextParagraph::FindObjectAtPosition(long position)
5746 {
5747     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
5748     while (node)
5749     {
5750         wxRichTextObject* obj = node->GetData();
5751         if (obj->GetRange().Contains(position) ||
5752             obj->GetRange().GetStart() == position ||
5753             obj->GetRange().GetEnd() == position)
5754             return obj;
5755
5756         node = node->GetNext();
5757     }
5758     return NULL;
5759 }
5760
5761 /// Get the plain text searching from the start or end of the range.
5762 /// The resulting string may be shorter than the range given.
5763 bool wxRichTextParagraph::GetContiguousPlainText(wxString& text, const wxRichTextRange& range, bool fromStart)
5764 {
5765     text = wxEmptyString;
5766
5767     if (fromStart)
5768     {
5769         wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
5770         while (node)
5771         {
5772             wxRichTextObject* obj = node->GetData();
5773             if (!obj->GetRange().IsOutside(range))
5774             {
5775                 wxRichTextPlainText* textObj = wxDynamicCast(obj, wxRichTextPlainText);
5776                 if (textObj)
5777                 {
5778                     text += textObj->GetTextForRange(range);
5779                 }
5780                 else
5781                 {
5782                     text += wxT(" ");
5783                 }
5784             }
5785
5786             node = node->GetNext();
5787         }
5788     }
5789     else
5790     {
5791         wxRichTextObjectList::compatibility_iterator node = m_children.GetLast();
5792         while (node)
5793         {
5794             wxRichTextObject* obj = node->GetData();
5795             if (!obj->GetRange().IsOutside(range))
5796             {
5797                 wxRichTextPlainText* textObj = wxDynamicCast(obj, wxRichTextPlainText);
5798                 if (textObj)
5799                 {
5800                     text = textObj->GetTextForRange(range) + text;
5801                 }
5802                 else
5803                 {
5804                     text = wxT(" ") + text;
5805                 }
5806             }
5807
5808             node = node->GetPrevious();
5809         }
5810     }
5811
5812     return true;
5813 }
5814
5815 /// Find a suitable wrap position.
5816 bool wxRichTextParagraph::FindWrapPosition(const wxRichTextRange& range, wxDC& dc, wxRichTextDrawingContext& context, int availableSpace, long& wrapPosition, wxArrayInt* partialExtents)
5817 {
5818     if (range.GetLength() <= 0)
5819         return false;
5820
5821     // Find the first position where the line exceeds the available space.
5822     wxSize sz;
5823     long breakPosition = range.GetEnd();
5824
5825 #if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
5826     if (partialExtents && partialExtents->GetCount() >= (size_t) (GetRange().GetLength()-1)) // the final position in a paragraph is the newline
5827     {
5828         int widthBefore;
5829
5830         if (range.GetStart() > GetRange().GetStart())
5831             widthBefore = (*partialExtents)[range.GetStart() - GetRange().GetStart() - 1];
5832         else
5833             widthBefore = 0;
5834
5835         size_t i;
5836         for (i = (size_t) range.GetStart(); i <= (size_t) range.GetEnd(); i++)
5837         {
5838             int widthFromStartOfThisRange = (*partialExtents)[i - GetRange().GetStart()] - widthBefore;
5839
5840             if (widthFromStartOfThisRange > availableSpace)
5841             {
5842                 breakPosition = i-1;
5843                 break;
5844             }
5845         }
5846     }
5847     else
5848 #endif
5849     {
5850         // Binary chop for speed
5851         long minPos = range.GetStart();
5852         long maxPos = range.GetEnd();
5853         while (true)
5854         {
5855             if (minPos == maxPos)
5856             {
5857                 int descent = 0;
5858                 GetRangeSize(wxRichTextRange(range.GetStart(), minPos), sz, descent, dc, context, wxRICHTEXT_UNFORMATTED);
5859
5860                 if (sz.x > availableSpace)
5861                     breakPosition = minPos - 1;
5862                 break;
5863             }
5864             else if ((maxPos - minPos) == 1)
5865             {
5866                 int descent = 0;
5867                 GetRangeSize(wxRichTextRange(range.GetStart(), minPos), sz, descent, dc, context, wxRICHTEXT_UNFORMATTED);
5868
5869                 if (sz.x > availableSpace)
5870                     breakPosition = minPos - 1;
5871                 else
5872                 {
5873                     GetRangeSize(wxRichTextRange(range.GetStart(), maxPos), sz, descent, dc, context, wxRICHTEXT_UNFORMATTED);
5874                     if (sz.x > availableSpace)
5875                         breakPosition = maxPos-1;
5876                 }
5877                 break;
5878             }
5879             else
5880             {
5881                 long nextPos = minPos + ((maxPos - minPos) / 2);
5882
5883                 int descent = 0;
5884                 GetRangeSize(wxRichTextRange(range.GetStart(), nextPos), sz, descent, dc, context, wxRICHTEXT_UNFORMATTED);
5885
5886                 if (sz.x > availableSpace)
5887                 {
5888                     maxPos = nextPos;
5889                 }
5890                 else
5891                 {
5892                     minPos = nextPos;
5893                 }
5894             }
5895         }
5896     }
5897
5898     // Now we know the last position on the line.
5899     // Let's try to find a word break.
5900
5901     wxString plainText;
5902     if (GetContiguousPlainText(plainText, wxRichTextRange(range.GetStart(), breakPosition), false))
5903     {
5904         int newLinePos = plainText.Find(wxRichTextLineBreakChar);
5905         if (newLinePos != wxNOT_FOUND)
5906         {
5907             breakPosition = wxMax(0, range.GetStart() + newLinePos);
5908         }
5909         else
5910         {
5911             int spacePos = plainText.Find(wxT(' '), true);
5912             int tabPos = plainText.Find(wxT('\t'), true);
5913             int pos = wxMax(spacePos, tabPos);
5914             if (pos != wxNOT_FOUND)
5915             {
5916                 int positionsFromEndOfString = plainText.length() - pos - 1;
5917                 breakPosition = breakPosition - positionsFromEndOfString;
5918             }
5919         }
5920     }
5921
5922     wrapPosition = breakPosition;
5923
5924     return true;
5925 }
5926
5927 /// Get the bullet text for this paragraph.
5928 wxString wxRichTextParagraph::GetBulletText()
5929 {
5930     if (GetAttributes().GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_NONE ||
5931         (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_BITMAP))
5932         return wxEmptyString;
5933
5934     int number = GetAttributes().GetBulletNumber();
5935
5936     wxString text;
5937     if ((GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ARABIC) || (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_OUTLINE))
5938     {
5939         text.Printf(wxT("%d"), number);
5940     }
5941     else if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_LETTERS_UPPER)
5942     {
5943         // TODO: Unicode, and also check if number > 26
5944         text.Printf(wxT("%c"), (wxChar) (number+64));
5945     }
5946     else if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_LETTERS_LOWER)
5947     {
5948         // TODO: Unicode, and also check if number > 26
5949         text.Printf(wxT("%c"), (wxChar) (number+96));
5950     }
5951     else if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ROMAN_UPPER)
5952     {
5953         text = wxRichTextDecimalToRoman(number);
5954     }
5955     else if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ROMAN_LOWER)
5956     {
5957         text = wxRichTextDecimalToRoman(number);
5958         text.MakeLower();
5959     }
5960     else if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_SYMBOL)
5961     {
5962         text = GetAttributes().GetBulletText();
5963     }
5964
5965     if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_OUTLINE)
5966     {
5967         // The outline style relies on the text being computed statically,
5968         // since it depends on other levels points (e.g. 1.2.1.1). So normally the bullet text
5969         // should be stored in the attributes; if not, just use the number for this
5970         // level, as previously computed.
5971         if (!GetAttributes().GetBulletText().IsEmpty())
5972             text = GetAttributes().GetBulletText();
5973     }
5974
5975     if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_PARENTHESES)
5976     {
5977         text = wxT("(") + text + wxT(")");
5978     }
5979     else if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_RIGHT_PARENTHESIS)
5980     {
5981         text = text + wxT(")");
5982     }
5983
5984     if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_PERIOD)
5985     {
5986         text += wxT(".");
5987     }
5988
5989     return text;
5990 }
5991
5992 /// Allocate or reuse a line object
5993 wxRichTextLine* wxRichTextParagraph::AllocateLine(int pos)
5994 {
5995     if (pos < (int) m_cachedLines.GetCount())
5996     {
5997         wxRichTextLine* line = m_cachedLines.Item(pos)->GetData();
5998         line->Init(this);
5999         return line;
6000     }
6001     else
6002     {
6003         wxRichTextLine* line = new wxRichTextLine(this);
6004         m_cachedLines.Append(line);
6005         return line;
6006     }
6007 }
6008
6009 /// Clear remaining unused line objects, if any
6010 bool wxRichTextParagraph::ClearUnusedLines(int lineCount)
6011 {
6012     int cachedLineCount = m_cachedLines.GetCount();
6013     if ((int) cachedLineCount > lineCount)
6014     {
6015         for (int i = 0; i < (int) (cachedLineCount - lineCount); i ++)
6016         {
6017             wxRichTextLineList::compatibility_iterator node = m_cachedLines.GetLast();
6018             wxRichTextLine* line = node->GetData();
6019             m_cachedLines.Erase(node);
6020             delete line;
6021         }
6022     }
6023     return true;
6024 }
6025
6026 /// Get combined attributes of the base style, paragraph style and character style. We use this to dynamically
6027 /// retrieve the actual style.
6028 wxRichTextAttr wxRichTextParagraph::GetCombinedAttributes(const wxRichTextAttr& contentStyle, bool includingBoxAttr) const
6029 {
6030     wxRichTextAttr attr;
6031     wxRichTextParagraphLayoutBox* buf = wxDynamicCast(GetParent(), wxRichTextParagraphLayoutBox);
6032     if (buf)
6033     {
6034         attr = buf->GetBasicStyle();
6035         if (!includingBoxAttr)
6036         {
6037             attr.GetTextBoxAttr().Reset();
6038             // The background colour will be painted by the container, and we don't
6039             // want to unnecessarily overwrite the background when we're drawing text
6040             // because this may erase the guideline (which appears just under the text
6041             // if there's no padding).
6042             attr.SetFlags(attr.GetFlags() & ~wxTEXT_ATTR_BACKGROUND_COLOUR);
6043         }
6044         wxRichTextApplyStyle(attr, GetAttributes());
6045     }
6046     else
6047         attr = GetAttributes();
6048
6049     wxRichTextApplyStyle(attr, contentStyle);
6050     return attr;
6051 }
6052
6053 /// Get combined attributes of the base style and paragraph style.
6054 wxRichTextAttr wxRichTextParagraph::GetCombinedAttributes(bool includingBoxAttr) const
6055 {
6056     wxRichTextAttr attr;
6057     wxRichTextParagraphLayoutBox* buf = wxDynamicCast(GetParent(), wxRichTextParagraphLayoutBox);
6058     if (buf)
6059     {
6060         attr = buf->GetBasicStyle();
6061         if (!includingBoxAttr)
6062             attr.GetTextBoxAttr().Reset();
6063         wxRichTextApplyStyle(attr, GetAttributes());
6064     }
6065     else
6066         attr = GetAttributes();
6067
6068     return attr;
6069 }
6070
6071 // Create default tabstop array
6072 void wxRichTextParagraph::InitDefaultTabs()
6073 {
6074     // create a default tab list at 10 mm each.
6075     for (int i = 0; i < 20; ++i)
6076     {
6077         sm_defaultTabs.Add(i*100);
6078     }
6079 }
6080
6081 // Clear default tabstop array
6082 void wxRichTextParagraph::ClearDefaultTabs()
6083 {
6084     sm_defaultTabs.Clear();
6085 }
6086
6087 void wxRichTextParagraph::LayoutFloat(wxDC& dc, wxRichTextDrawingContext& context, const wxRect& rect, int style, wxRichTextFloatCollector* floatCollector)
6088 {
6089     wxRichTextObjectList::compatibility_iterator node = GetChildren().GetFirst();
6090     while (node)
6091     {
6092         wxRichTextObject* anchored = node->GetData();
6093         if (anchored && anchored->IsFloating() && !floatCollector->HasFloat(anchored))
6094         {
6095             wxSize size;
6096             int descent, x = 0;
6097             anchored->GetRangeSize(anchored->GetRange(), size, descent, dc, context, style);
6098
6099             int offsetY = 0;
6100             if (anchored->GetAttributes().GetTextBoxAttr().GetTop().IsValid())
6101             {
6102                 offsetY = anchored->GetAttributes().GetTextBoxAttr().GetTop().GetValue();
6103                 if (anchored->GetAttributes().GetTextBoxAttr().GetTop().GetUnits() == wxTEXT_ATTR_UNITS_TENTHS_MM)
6104                 {
6105                     offsetY = ConvertTenthsMMToPixels(dc, offsetY);
6106                 }
6107             }
6108
6109             int pos = floatCollector->GetFitPosition(anchored->GetAttributes().GetTextBoxAttr().GetFloatMode(), rect.y + offsetY, size.y);
6110
6111             /* Update the offset */
6112             int newOffsetY = pos - rect.y;
6113             if (newOffsetY != offsetY)
6114             {
6115                 if (anchored->GetAttributes().GetTextBoxAttr().GetTop().GetUnits() == wxTEXT_ATTR_UNITS_TENTHS_MM)
6116                     newOffsetY = ConvertPixelsToTenthsMM(dc, newOffsetY);
6117                 anchored->GetAttributes().GetTextBoxAttr().GetTop().SetValue(newOffsetY);
6118             }
6119
6120             if (anchored->GetAttributes().GetTextBoxAttr().GetFloatMode() == wxTEXT_BOX_ATTR_FLOAT_LEFT)
6121                 x = rect.x;
6122             else if (anchored->GetAttributes().GetTextBoxAttr().GetFloatMode() == wxTEXT_BOX_ATTR_FLOAT_RIGHT)
6123                 x = rect.x + rect.width - size.x;
6124
6125             anchored->SetPosition(wxPoint(x, pos));
6126             anchored->SetCachedSize(size);
6127             floatCollector->CollectFloat(this, anchored);
6128         }
6129
6130         node = node->GetNext();
6131     }
6132 }
6133
6134 // Get the first position from pos that has a line break character.
6135 long wxRichTextParagraph::GetFirstLineBreakPosition(long pos)
6136 {
6137     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
6138     while (node)
6139     {
6140         wxRichTextObject* obj = node->GetData();
6141         if (pos >= obj->GetRange().GetStart() && pos <= obj->GetRange().GetEnd())
6142         {
6143             wxRichTextPlainText* textObj = wxDynamicCast(obj, wxRichTextPlainText);
6144             if (textObj)
6145             {
6146                 long breakPos = textObj->GetFirstLineBreakPosition(pos);
6147                 if (breakPos > -1)
6148                     return breakPos;
6149             }
6150         }
6151         node = node->GetNext();
6152     }
6153     return -1;
6154 }
6155
6156 /*!
6157  * wxRichTextLine
6158  * This object represents a line in a paragraph, and stores
6159  * offsets from the start of the paragraph representing the
6160  * start and end positions of the line.
6161  */
6162
6163 wxRichTextLine::wxRichTextLine(wxRichTextParagraph* parent)
6164 {
6165     Init(parent);
6166 }
6167
6168 /// Initialisation
6169 void wxRichTextLine::Init(wxRichTextParagraph* parent)
6170 {
6171     m_parent = parent;
6172     m_range.SetRange(-1, -1);
6173     m_pos = wxPoint(0, 0);
6174     m_size = wxSize(0, 0);
6175     m_descent = 0;
6176 #if wxRICHTEXT_USE_OPTIMIZED_LINE_DRAWING
6177     m_objectSizes.Clear();
6178 #endif
6179 }
6180
6181 /// Copy
6182 void wxRichTextLine::Copy(const wxRichTextLine& obj)
6183 {
6184     m_range = obj.m_range;
6185 #if wxRICHTEXT_USE_OPTIMIZED_LINE_DRAWING
6186     m_objectSizes = obj.m_objectSizes;
6187 #endif
6188 }
6189
6190 /// Get the absolute object position
6191 wxPoint wxRichTextLine::GetAbsolutePosition() const
6192 {
6193     return m_parent->GetPosition() + m_pos;
6194 }
6195
6196 /// Get the absolute range
6197 wxRichTextRange wxRichTextLine::GetAbsoluteRange() const
6198 {
6199     wxRichTextRange range(m_range.GetStart() + m_parent->GetRange().GetStart(), 0);
6200     range.SetEnd(range.GetStart() + m_range.GetLength()-1);
6201     return range;
6202 }
6203
6204 /*!
6205  * wxRichTextPlainText
6206  * This object represents a single piece of text.
6207  */
6208
6209 IMPLEMENT_DYNAMIC_CLASS(wxRichTextPlainText, wxRichTextObject)
6210
6211 wxRichTextPlainText::wxRichTextPlainText(const wxString& text, wxRichTextObject* parent, wxRichTextAttr* style):
6212     wxRichTextObject(parent)
6213 {
6214     if (style)
6215         SetAttributes(*style);
6216
6217     m_text = text;
6218 }
6219
6220 #define USE_KERNING_FIX 1
6221
6222 // If insufficient tabs are defined, this is the tab width used
6223 #define WIDTH_FOR_DEFAULT_TABS 50
6224
6225 /// Draw the item
6226 bool wxRichTextPlainText::Draw(wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& range, const wxRichTextSelection& selection, const wxRect& rect, int descent, int WXUNUSED(style))
6227 {
6228     wxRichTextParagraph* para = wxDynamicCast(GetParent(), wxRichTextParagraph);
6229     wxASSERT (para != NULL);
6230
6231     wxRichTextAttr textAttr(para ? para->GetCombinedAttributes(GetAttributes(), false /* no box attributes */) : GetAttributes());
6232     context.ApplyVirtualAttributes(textAttr, this);
6233
6234     // Let's make the assumption for now that for content in a paragraph, including
6235     // text, we never have a discontinuous selection. So we only deal with a
6236     // single range.
6237     wxRichTextRange selectionRange;
6238     if (selection.IsValid())
6239     {
6240         wxRichTextRangeArray selectionRanges = selection.GetSelectionForObject(this);
6241         if (selectionRanges.GetCount() > 0)
6242             selectionRange = selectionRanges[0];
6243         else
6244             selectionRange = wxRICHTEXT_NO_SELECTION;
6245     }
6246     else
6247         selectionRange = wxRICHTEXT_NO_SELECTION;
6248
6249     int offset = GetRange().GetStart();
6250
6251     // Replace line break characters with spaces
6252     wxString str = m_text;
6253     wxString toRemove = wxRichTextLineBreakChar;
6254     str.Replace(toRemove, wxT(" "));
6255     if (textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_CAPITALS))
6256         str.MakeUpper();
6257
6258     long len = range.GetLength();
6259     wxString stringChunk = str.Mid(range.GetStart() - offset, (size_t) len);
6260
6261     // Test for the optimized situations where all is selected, or none
6262     // is selected.
6263
6264     wxFont textFont(GetBuffer()->GetFontTable().FindFont(textAttr));
6265     wxCheckSetFont(dc, textFont);
6266     int charHeight = dc.GetCharHeight();
6267
6268     int x, y;
6269     if ( textFont.IsOk() )
6270     {
6271         if ( textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_SUPERSCRIPT) )
6272         {
6273             if (textFont.IsUsingSizeInPixels())
6274             {
6275                 double size = static_cast<double>(textFont.GetPixelSize().y) / wxSCRIPT_MUL_FACTOR;
6276                 textFont.SetPixelSize(wxSize(0, static_cast<int>(size)));
6277                 x = rect.x;
6278                 y = rect.y;
6279             }
6280             else
6281             {
6282                 double size = static_cast<double>(textFont.GetPointSize()) / wxSCRIPT_MUL_FACTOR;
6283                 textFont.SetPointSize(static_cast<int>(size));
6284                 x = rect.x;
6285                 y = rect.y;
6286             }
6287             wxCheckSetFont(dc, textFont);
6288         }
6289         else if ( textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_SUBSCRIPT) )
6290         {
6291             if (textFont.IsUsingSizeInPixels())
6292             {
6293                 double size = static_cast<double>(textFont.GetPixelSize().y) / wxSCRIPT_MUL_FACTOR;
6294                 textFont.SetPixelSize(wxSize(0, static_cast<int>(size)));
6295                 x = rect.x;
6296                 int sub_height = static_cast<int>(static_cast<double>(charHeight) / wxSCRIPT_MUL_FACTOR);
6297                 y = rect.y + (rect.height - sub_height + (descent - m_descent));
6298             }
6299             else
6300             {
6301                 double size = static_cast<double>(textFont.GetPointSize()) / wxSCRIPT_MUL_FACTOR;
6302                 textFont.SetPointSize(static_cast<int>(size));
6303                 x = rect.x;
6304                 int sub_height = static_cast<int>(static_cast<double>(charHeight) / wxSCRIPT_MUL_FACTOR);
6305                 y = rect.y + (rect.height - sub_height + (descent - m_descent));
6306             }
6307             wxCheckSetFont(dc, textFont);
6308         }
6309         else
6310         {
6311             x = rect.x;
6312             y = rect.y + (rect.height - charHeight - (descent - m_descent));
6313         }
6314     }
6315     else
6316     {
6317         x = rect.x;
6318         y = rect.y + (rect.height - charHeight - (descent - m_descent));
6319     }
6320
6321     // TODO: new selection code
6322
6323     // (a) All selected.
6324     if (selectionRange.GetStart() <= range.GetStart() && selectionRange.GetEnd() >= range.GetEnd())
6325     {
6326         DrawTabbedString(dc, textAttr, rect, stringChunk, x, y, true);
6327     }
6328     // (b) None selected.
6329     else if (selectionRange.GetEnd() < range.GetStart() || selectionRange.GetStart() > range.GetEnd())
6330     {
6331         // Draw all unselected
6332         DrawTabbedString(dc, textAttr, rect, stringChunk, x, y, false);
6333     }
6334     else
6335     {
6336         // (c) Part selected, part not
6337         // Let's draw unselected chunk, selected chunk, then unselected chunk.
6338
6339         dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
6340
6341         // 1. Initial unselected chunk, if any, up until start of selection.
6342         if (selectionRange.GetStart() > range.GetStart() && selectionRange.GetStart() <= range.GetEnd())
6343         {
6344             int r1 = range.GetStart();
6345             int s1 = selectionRange.GetStart()-1;
6346             int fragmentLen = s1 - r1 + 1;
6347             if (fragmentLen < 0)
6348             {
6349                 wxLogDebug(wxT("Mid(%d, %d"), (int)(r1 - offset), (int)fragmentLen);
6350             }
6351             wxString stringFragment = str.Mid(r1 - offset, fragmentLen);
6352
6353             DrawTabbedString(dc, textAttr, rect, stringFragment, x, y, false);
6354
6355 #if USE_KERNING_FIX
6356             if (stringChunk.Find(wxT("\t")) == wxNOT_FOUND)
6357             {
6358                 // Compensate for kerning difference
6359                 wxString stringFragment2(str.Mid(r1 - offset, fragmentLen+1));
6360                 wxString stringFragment3(str.Mid(r1 - offset + fragmentLen, 1));
6361
6362                 wxCoord w1, h1, w2, h2, w3, h3;
6363                 dc.GetTextExtent(stringFragment,  & w1, & h1);
6364                 dc.GetTextExtent(stringFragment2, & w2, & h2);
6365                 dc.GetTextExtent(stringFragment3, & w3, & h3);
6366
6367                 int kerningDiff = (w1 + w3) - w2;
6368                 x = x - kerningDiff;
6369             }
6370 #endif
6371         }
6372
6373         // 2. Selected chunk, if any.
6374         if (selectionRange.GetEnd() >= range.GetStart())
6375         {
6376             int s1 = wxMax(selectionRange.GetStart(), range.GetStart());
6377             int s2 = wxMin(selectionRange.GetEnd(), range.GetEnd());
6378
6379             int fragmentLen = s2 - s1 + 1;
6380             if (fragmentLen < 0)
6381             {
6382                 wxLogDebug(wxT("Mid(%d, %d"), (int)(s1 - offset), (int)fragmentLen);
6383             }
6384             wxString stringFragment = str.Mid(s1 - offset, fragmentLen);
6385
6386             DrawTabbedString(dc, textAttr, rect, stringFragment, x, y, true);
6387
6388 #if USE_KERNING_FIX
6389             if (stringChunk.Find(wxT("\t")) == wxNOT_FOUND)
6390             {
6391                 // Compensate for kerning difference
6392                 wxString stringFragment2(str.Mid(s1 - offset, fragmentLen+1));
6393                 wxString stringFragment3(str.Mid(s1 - offset + fragmentLen, 1));
6394
6395                 wxCoord w1, h1, w2, h2, w3, h3;
6396                 dc.GetTextExtent(stringFragment,  & w1, & h1);
6397                 dc.GetTextExtent(stringFragment2, & w2, & h2);
6398                 dc.GetTextExtent(stringFragment3, & w3, & h3);
6399
6400                 int kerningDiff = (w1 + w3) - w2;
6401                 x = x - kerningDiff;
6402             }
6403 #endif
6404         }
6405
6406         // 3. Remaining unselected chunk, if any
6407         if (selectionRange.GetEnd() < range.GetEnd())
6408         {
6409             int s2 = wxMin(selectionRange.GetEnd()+1, range.GetEnd());
6410             int r2 = range.GetEnd();
6411
6412             int fragmentLen = r2 - s2 + 1;
6413             if (fragmentLen < 0)
6414             {
6415                 wxLogDebug(wxT("Mid(%d, %d"), (int)(s2 - offset), (int)fragmentLen);
6416             }
6417             wxString stringFragment = str.Mid(s2 - offset, fragmentLen);
6418
6419             DrawTabbedString(dc, textAttr, rect, stringFragment, x, y, false);
6420         }
6421     }
6422
6423     return true;
6424 }
6425
6426 bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxRichTextAttr& attr, const wxRect& rect,wxString& str, wxCoord& x, wxCoord& y, bool selected)
6427 {
6428     bool hasTabs = (str.Find(wxT('\t')) != wxNOT_FOUND);
6429
6430     wxArrayInt tabArray;
6431     int tabCount;
6432     if (hasTabs)
6433     {
6434         if (attr.GetTabs().IsEmpty())
6435             tabArray = wxRichTextParagraph::GetDefaultTabs();
6436         else
6437             tabArray = attr.GetTabs();
6438         tabCount = tabArray.GetCount();
6439
6440         for (int i = 0; i < tabCount; ++i)
6441         {
6442             int pos = tabArray[i];
6443             pos = ConvertTenthsMMToPixels(dc, pos);
6444             tabArray[i] = pos;
6445         }
6446     }
6447     else
6448         tabCount = 0;
6449
6450     int nextTabPos = -1;
6451     int tabPos = -1;
6452     wxCoord w, h;
6453
6454     if (selected)
6455     {
6456         wxColour highlightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT));
6457         wxColour highlightTextColour(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT));
6458
6459         wxCheckSetBrush(dc, wxBrush(highlightColour));
6460         wxCheckSetPen(dc, wxPen(highlightColour));
6461         dc.SetTextForeground(highlightTextColour);
6462         dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
6463     }
6464     else
6465     {
6466         dc.SetTextForeground(attr.GetTextColour());
6467
6468         if (attr.HasFlag(wxTEXT_ATTR_BACKGROUND_COLOUR) && attr.GetBackgroundColour().IsOk())
6469         {
6470             dc.SetBackgroundMode(wxBRUSHSTYLE_SOLID);
6471             dc.SetTextBackground(attr.GetBackgroundColour());
6472         }
6473         else
6474             dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
6475     }
6476
6477     wxCoord x_orig = GetParent()->GetPosition().x;
6478     while (hasTabs)
6479     {
6480         // the string has a tab
6481         // break up the string at the Tab
6482         wxString stringChunk = str.BeforeFirst(wxT('\t'));
6483         str = str.AfterFirst(wxT('\t'));
6484         dc.GetTextExtent(stringChunk, & w, & h);
6485         tabPos = x + w;
6486         bool not_found = true;
6487         for (int i = 0; i < tabCount && not_found; ++i)
6488         {
6489             nextTabPos = tabArray.Item(i) + x_orig;
6490
6491             // Find the next tab position.
6492             // Even if we're at the end of the tab array, we must still draw the chunk.
6493
6494             if (nextTabPos > tabPos || (i == (tabCount - 1)))
6495             {
6496                 if (nextTabPos <= tabPos)
6497                 {
6498                     int defaultTabWidth = ConvertTenthsMMToPixels(dc, WIDTH_FOR_DEFAULT_TABS);
6499                     nextTabPos = tabPos + defaultTabWidth;
6500                 }
6501
6502                 not_found = false;
6503                 if (selected)
6504                 {
6505                     w = nextTabPos - x;
6506                     wxRect selRect(x, rect.y, w, rect.GetHeight());
6507                     dc.DrawRectangle(selRect);
6508                 }
6509                 dc.DrawText(stringChunk, x, y);
6510
6511                 if (attr.HasTextEffects() && (attr.GetTextEffects() & wxTEXT_ATTR_EFFECT_STRIKETHROUGH))
6512                 {
6513                     wxPen oldPen = dc.GetPen();
6514                     wxCheckSetPen(dc, wxPen(attr.GetTextColour(), 1));
6515                     dc.DrawLine(x, (int) (y+(h/2)+0.5), x+w, (int) (y+(h/2)+0.5));
6516                     wxCheckSetPen(dc, oldPen);
6517                 }
6518
6519                 x = nextTabPos;
6520             }
6521         }
6522         hasTabs = (str.Find(wxT('\t')) != wxNOT_FOUND);
6523     }
6524
6525     if (!str.IsEmpty())
6526     {
6527         dc.GetTextExtent(str, & w, & h);
6528         if (selected)
6529         {
6530             wxRect selRect(x, rect.y, w, rect.GetHeight());
6531             dc.DrawRectangle(selRect);
6532         }
6533         dc.DrawText(str, x, y);
6534
6535         if (attr.HasTextEffects() && (attr.GetTextEffects() & wxTEXT_ATTR_EFFECT_STRIKETHROUGH))
6536         {
6537             wxPen oldPen = dc.GetPen();
6538             wxCheckSetPen(dc, wxPen(attr.GetTextColour(), 1));
6539             dc.DrawLine(x, (int) (y+(h/2)+0.5), x+w, (int) (y+(h/2)+0.5));
6540             wxCheckSetPen(dc, oldPen);
6541         }
6542
6543         x += w;
6544     }
6545
6546     return true;
6547 }
6548
6549 /// Lay the item out
6550 bool wxRichTextPlainText::Layout(wxDC& dc, wxRichTextDrawingContext& context, const wxRect& WXUNUSED(rect), const wxRect& WXUNUSED(parentRect), int WXUNUSED(style))
6551 {
6552     // Only lay out if we haven't already cached the size
6553     if (m_size.x == -1)
6554         GetRangeSize(GetRange(), m_size, m_descent, dc, context, 0, wxPoint(0, 0));
6555     m_maxSize = m_size;
6556     // Eventually we want to have a reasonable estimate of minimum size.
6557     m_minSize = wxSize(0, 0);
6558     return true;
6559 }
6560
6561 /// Copy
6562 void wxRichTextPlainText::Copy(const wxRichTextPlainText& obj)
6563 {
6564     wxRichTextObject::Copy(obj);
6565
6566     m_text = obj.m_text;
6567 }
6568
6569 /// Get/set the object size for the given range. Returns false if the range
6570 /// is invalid for this object.
6571 bool wxRichTextPlainText::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, wxRichTextDrawingContext& context, int WXUNUSED(flags), wxPoint position, wxArrayInt* partialExtents) const
6572 {
6573     if (!range.IsWithin(GetRange()))
6574         return false;
6575
6576     wxRichTextParagraph* para = wxDynamicCast(GetParent(), wxRichTextParagraph);
6577     wxASSERT (para != NULL);
6578
6579     int relativeX = position.x - GetParent()->GetPosition().x;
6580
6581     wxRichTextAttr textAttr(para ? para->GetCombinedAttributes(GetAttributes()) : GetAttributes());
6582     context.ApplyVirtualAttributes(textAttr, (wxRichTextObject*) this);
6583
6584     // Always assume unformatted text, since at this level we have no knowledge
6585     // of line breaks - and we don't need it, since we'll calculate size within
6586     // formatted text by doing it in chunks according to the line ranges
6587
6588     bool bScript(false);
6589     wxFont font(GetBuffer()->GetFontTable().FindFont(textAttr));
6590     if (font.IsOk())
6591     {
6592         if ( textAttr.HasTextEffects() && ( (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_SUPERSCRIPT)
6593             || (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_SUBSCRIPT) ) )
6594         {
6595             wxFont textFont = font;
6596             if (textFont.IsUsingSizeInPixels())
6597             {
6598                 double size = static_cast<double>(textFont.GetPixelSize().y) / wxSCRIPT_MUL_FACTOR;
6599                 textFont.SetPixelSize(wxSize(0, static_cast<int>(size)));
6600             }
6601             else
6602             {
6603                 double size = static_cast<double>(textFont.GetPointSize()) / wxSCRIPT_MUL_FACTOR;
6604                 textFont.SetPointSize(static_cast<int>(size));
6605             }
6606             wxCheckSetFont(dc, textFont);
6607             bScript = true;
6608         }
6609         else
6610         {
6611             wxCheckSetFont(dc, font);
6612         }
6613     }
6614
6615     bool haveDescent = false;
6616     int startPos = range.GetStart() - GetRange().GetStart();
6617     long len = range.GetLength();
6618
6619     wxString str(m_text);
6620     wxString toReplace = wxRichTextLineBreakChar;
6621     str.Replace(toReplace, wxT(" "));
6622
6623     wxString stringChunk = str.Mid(startPos, (size_t) len);
6624
6625     if (textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_CAPITALS))
6626         stringChunk.MakeUpper();
6627
6628     wxCoord w, h;
6629     int width = 0;
6630     if (stringChunk.Find(wxT('\t')) != wxNOT_FOUND)
6631     {
6632         // the string has a tab
6633         wxArrayInt tabArray;
6634         if (textAttr.GetTabs().IsEmpty())
6635             tabArray = wxRichTextParagraph::GetDefaultTabs();
6636         else
6637             tabArray = textAttr.GetTabs();
6638
6639         int tabCount = tabArray.GetCount();
6640
6641         for (int i = 0; i < tabCount; ++i)
6642         {
6643             int pos = tabArray[i];
6644             pos = ((wxRichTextPlainText*) this)->ConvertTenthsMMToPixels(dc, pos);
6645             tabArray[i] = pos;
6646         }
6647
6648         int nextTabPos = -1;
6649
6650         while (stringChunk.Find(wxT('\t')) >= 0)
6651         {
6652             int absoluteWidth = 0;
6653
6654             // the string has a tab
6655             // break up the string at the Tab
6656             wxString stringFragment = stringChunk.BeforeFirst(wxT('\t'));
6657             stringChunk = stringChunk.AfterFirst(wxT('\t'));
6658
6659             if (partialExtents)
6660             {
6661                 int oldWidth;
6662                 if (partialExtents->GetCount() > 0)
6663                     oldWidth = (*partialExtents)[partialExtents->GetCount()-1];
6664                 else
6665                     oldWidth = 0;
6666
6667                 // Add these partial extents
6668                 wxArrayInt p;
6669                 dc.GetPartialTextExtents(stringFragment, p);
6670                 size_t j;
6671                 for (j = 0; j < p.GetCount(); j++)
6672                     partialExtents->Add(oldWidth + p[j]);
6673
6674                 if (partialExtents->GetCount() > 0)
6675                     absoluteWidth = (*partialExtents)[(*partialExtents).GetCount()-1] + relativeX;
6676                 else
6677                     absoluteWidth = relativeX;
6678             }
6679             else
6680             {
6681                 dc.GetTextExtent(stringFragment, & w, & h);
6682                 width += w;
6683                 absoluteWidth = width + relativeX;
6684                 haveDescent = true;
6685             }
6686
6687             bool notFound = true;
6688             for (int i = 0; i < tabCount && notFound; ++i)
6689             {
6690                 nextTabPos = tabArray.Item(i);
6691
6692                 // Find the next tab position.
6693                 // Even if we're at the end of the tab array, we must still process the chunk.
6694
6695                 if (nextTabPos > absoluteWidth || (i == (tabCount - 1)))
6696                 {
6697                     if (nextTabPos <= absoluteWidth)
6698                     {
6699                         int defaultTabWidth = ((wxRichTextPlainText*) this)->ConvertTenthsMMToPixels(dc, WIDTH_FOR_DEFAULT_TABS);
6700                         nextTabPos = absoluteWidth + defaultTabWidth;
6701                     }
6702
6703                     notFound = false;
6704                     width = nextTabPos - relativeX;
6705
6706                     if (partialExtents)
6707                         partialExtents->Add(width);
6708                 }
6709             }
6710         }
6711     }
6712
6713     if (!stringChunk.IsEmpty())
6714     {
6715         if (partialExtents)
6716         {
6717             int oldWidth;
6718             if (partialExtents->GetCount() > 0)
6719                 oldWidth = (*partialExtents)[partialExtents->GetCount()-1];
6720             else
6721                 oldWidth = 0;
6722
6723             // Add these partial extents
6724             wxArrayInt p;
6725             dc.GetPartialTextExtents(stringChunk, p);
6726             size_t j;
6727             for (j = 0; j < p.GetCount(); j++)
6728                 partialExtents->Add(oldWidth + p[j]);
6729         }
6730         else
6731         {
6732             dc.GetTextExtent(stringChunk, & w, & h, & descent);
6733             width += w;
6734             haveDescent = true;
6735         }
6736     }
6737
6738     if (partialExtents)
6739     {
6740         int charHeight = dc.GetCharHeight();
6741         if ((*partialExtents).GetCount() > 0)
6742             w = (*partialExtents)[partialExtents->GetCount()-1];
6743         else
6744             w = 0;
6745         size = wxSize(w, charHeight);
6746     }
6747     else
6748     {
6749         size = wxSize(width, dc.GetCharHeight());
6750     }
6751
6752     if (!haveDescent)
6753         dc.GetTextExtent(wxT("X"), & w, & h, & descent);
6754
6755     if ( bScript )
6756         dc.SetFont(font);
6757
6758     return true;
6759 }
6760
6761 /// Do a split, returning an object containing the second part, and setting
6762 /// the first part in 'this'.
6763 wxRichTextObject* wxRichTextPlainText::DoSplit(long pos)
6764 {
6765     long index = pos - GetRange().GetStart();
6766
6767     if (index < 0 || index >= (int) m_text.length())
6768         return NULL;
6769
6770     wxString firstPart = m_text.Mid(0, index);
6771     wxString secondPart = m_text.Mid(index);
6772
6773     m_text = firstPart;
6774
6775     wxRichTextPlainText* newObject = new wxRichTextPlainText(secondPart);
6776     newObject->SetAttributes(GetAttributes());
6777     newObject->SetProperties(GetProperties());
6778
6779     newObject->SetRange(wxRichTextRange(pos, GetRange().GetEnd()));
6780     GetRange().SetEnd(pos-1);
6781
6782     return newObject;
6783 }
6784
6785 /// Calculate range
6786 void wxRichTextPlainText::CalculateRange(long start, long& end)
6787 {
6788     end = start + m_text.length() - 1;
6789     m_range.SetRange(start, end);
6790 }
6791
6792 /// Delete range
6793 bool wxRichTextPlainText::DeleteRange(const wxRichTextRange& range)
6794 {
6795     wxRichTextRange r = range;
6796
6797     r.LimitTo(GetRange());
6798
6799     if (r.GetStart() == GetRange().GetStart() && r.GetEnd() == GetRange().GetEnd())
6800     {
6801         m_text.Empty();
6802         return true;
6803     }
6804
6805     long startIndex = r.GetStart() - GetRange().GetStart();
6806     long len = r.GetLength();
6807
6808     m_text = m_text.Mid(0, startIndex) + m_text.Mid(startIndex+len);
6809     return true;
6810 }
6811
6812 /// Get text for the given range.
6813 wxString wxRichTextPlainText::GetTextForRange(const wxRichTextRange& range) const
6814 {
6815     wxRichTextRange r = range;
6816
6817     r.LimitTo(GetRange());
6818
6819     long startIndex = r.GetStart() - GetRange().GetStart();
6820     long len = r.GetLength();
6821
6822     return m_text.Mid(startIndex, len);
6823 }
6824
6825 /// Returns true if this object can merge itself with the given one.
6826 bool wxRichTextPlainText::CanMerge(wxRichTextObject* object) const
6827 {
6828     return object->GetClassInfo() == wxCLASSINFO(wxRichTextPlainText) &&
6829         (m_text.empty() || (wxTextAttrEq(GetAttributes(), object->GetAttributes()) && m_properties == object->GetProperties()));
6830 }
6831
6832 /// Returns true if this object merged itself with the given one.
6833 /// The calling code will then delete the given object.
6834 bool wxRichTextPlainText::Merge(wxRichTextObject* object)
6835 {
6836     wxRichTextPlainText* textObject = wxDynamicCast(object, wxRichTextPlainText);
6837     wxASSERT( textObject != NULL );
6838
6839     if (textObject)
6840     {
6841         m_text += textObject->GetText();
6842         wxRichTextApplyStyle(m_attributes, textObject->GetAttributes());
6843         return true;
6844     }
6845     else
6846         return false;
6847 }
6848
6849 /// Dump to output stream for debugging
6850 void wxRichTextPlainText::Dump(wxTextOutputStream& stream)
6851 {
6852     wxRichTextObject::Dump(stream);
6853     stream << m_text << wxT("\n");
6854 }
6855
6856 /// Get the first position from pos that has a line break character.
6857 long wxRichTextPlainText::GetFirstLineBreakPosition(long pos)
6858 {
6859     int i;
6860     int len = m_text.length();
6861     int startPos = pos - m_range.GetStart();
6862     for (i = startPos; i < len; i++)
6863     {
6864         wxChar ch = m_text[i];
6865         if (ch == wxRichTextLineBreakChar)
6866         {
6867             return i + m_range.GetStart();
6868         }
6869     }
6870     return -1;
6871 }
6872
6873 /*!
6874  * wxRichTextBuffer
6875  * This is a kind of box, used to represent the whole buffer
6876  */
6877
6878 IMPLEMENT_DYNAMIC_CLASS(wxRichTextBuffer, wxRichTextParagraphLayoutBox)
6879
6880 wxList                      wxRichTextBuffer::sm_handlers;
6881 wxList                      wxRichTextBuffer::sm_drawingHandlers;
6882 wxRichTextFieldTypeHashMap  wxRichTextBuffer::sm_fieldTypes;
6883 wxRichTextRenderer*         wxRichTextBuffer::sm_renderer = NULL;
6884 int                         wxRichTextBuffer::sm_bulletRightMargin = 20;
6885 float                       wxRichTextBuffer::sm_bulletProportion = (float) 0.3;
6886
6887 /// Initialisation
6888 void wxRichTextBuffer::Init()
6889 {
6890     m_commandProcessor = new wxCommandProcessor;
6891     m_styleSheet = NULL;
6892     m_modified = false;
6893     m_batchedCommandDepth = 0;
6894     m_batchedCommand = NULL;
6895     m_suppressUndo = 0;
6896     m_handlerFlags = 0;
6897     m_scale = 1.0;
6898     m_dimensionScale = 1.0;
6899     m_fontScale = 1.0;
6900     SetMargins(4);
6901 }
6902
6903 /// Initialisation
6904 wxRichTextBuffer::~wxRichTextBuffer()
6905 {
6906     delete m_commandProcessor;
6907     delete m_batchedCommand;
6908
6909     ClearStyleStack();
6910     ClearEventHandlers();
6911 }
6912
6913 void wxRichTextBuffer::ResetAndClearCommands()
6914 {
6915     Reset();
6916
6917     GetCommandProcessor()->ClearCommands();
6918
6919     Modify(false);
6920     Invalidate(wxRICHTEXT_ALL);
6921 }
6922
6923 void wxRichTextBuffer::Copy(const wxRichTextBuffer& obj)
6924 {
6925     wxRichTextParagraphLayoutBox::Copy(obj);
6926
6927     m_styleSheet = obj.m_styleSheet;
6928     m_modified = obj.m_modified;
6929     m_batchedCommandDepth = 0;
6930     if (m_batchedCommand)
6931         delete m_batchedCommand;
6932     m_batchedCommand = NULL;
6933     m_suppressUndo = obj.m_suppressUndo;
6934     m_invalidRange = obj.m_invalidRange;
6935     m_dimensionScale = obj.m_dimensionScale;
6936     m_fontScale = obj.m_fontScale;
6937 }
6938
6939 /// Push style sheet to top of stack
6940 bool wxRichTextBuffer::PushStyleSheet(wxRichTextStyleSheet* styleSheet)
6941 {
6942     if (m_styleSheet)
6943         styleSheet->InsertSheet(m_styleSheet);
6944
6945     SetStyleSheet(styleSheet);
6946
6947     return true;
6948 }
6949
6950 /// Pop style sheet from top of stack
6951 wxRichTextStyleSheet* wxRichTextBuffer::PopStyleSheet()
6952 {
6953     if (m_styleSheet)
6954     {
6955         wxRichTextStyleSheet* oldSheet = m_styleSheet;
6956         m_styleSheet = oldSheet->GetNextSheet();
6957         oldSheet->Unlink();
6958
6959         return oldSheet;
6960     }
6961     else
6962         return NULL;
6963 }
6964
6965 /// Submit command to insert paragraphs
6966 bool wxRichTextBuffer::InsertParagraphsWithUndo(long pos, const wxRichTextParagraphLayoutBox& paragraphs, wxRichTextCtrl* ctrl, int flags)
6967 {
6968     return ctrl->GetFocusObject()->InsertParagraphsWithUndo(this, pos, paragraphs, ctrl, flags);
6969 }
6970
6971 /// Submit command to insert paragraphs
6972 bool wxRichTextParagraphLayoutBox::InsertParagraphsWithUndo(wxRichTextBuffer* buffer, long pos, const wxRichTextParagraphLayoutBox& paragraphs, wxRichTextCtrl* ctrl, int WXUNUSED(flags))
6973 {
6974     wxRichTextAction* action = new wxRichTextAction(NULL, _("Insert Text"), wxRICHTEXT_INSERT, buffer, this, ctrl, false);
6975
6976     action->GetNewParagraphs() = paragraphs;
6977
6978     action->SetPosition(pos);
6979
6980     wxRichTextRange range = wxRichTextRange(pos, pos + paragraphs.GetOwnRange().GetEnd() - 1);
6981     if (!paragraphs.GetPartialParagraph())
6982         range.SetEnd(range.GetEnd()+1);
6983
6984     // Set the range we'll need to delete in Undo
6985     action->SetRange(range);
6986
6987     buffer->SubmitAction(action);
6988
6989     return true;
6990 }
6991
6992 /// Submit command to insert the given text
6993 bool wxRichTextBuffer::InsertTextWithUndo(long pos, const wxString& text, wxRichTextCtrl* ctrl, int flags)
6994 {
6995     return ctrl->GetFocusObject()->InsertTextWithUndo(this, pos, text, ctrl, flags);
6996 }
6997
6998 /// Submit command to insert the given text
6999 bool wxRichTextParagraphLayoutBox::InsertTextWithUndo(wxRichTextBuffer* buffer, long pos, const wxString& text, wxRichTextCtrl* ctrl, int flags)
7000 {
7001     wxRichTextAction* action = new wxRichTextAction(NULL, _("Insert Text"), wxRICHTEXT_INSERT, buffer, this, ctrl, false);
7002
7003     wxRichTextAttr* p = NULL;
7004     wxRichTextAttr paraAttr;
7005     if (flags & wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE)
7006     {
7007         // Get appropriate paragraph style
7008         paraAttr = GetStyleForNewParagraph(buffer, pos, false, false);
7009         if (!paraAttr.IsDefault())
7010             p = & paraAttr;
7011     }
7012
7013     action->GetNewParagraphs().AddParagraphs(text, p);
7014
7015     int length = action->GetNewParagraphs().GetOwnRange().GetLength();
7016
7017     if (!text.empty() && text.Last() != wxT('\n'))
7018     {
7019         // Don't count the newline when undoing
7020         length --;
7021         action->GetNewParagraphs().SetPartialParagraph(true);
7022     }
7023     else if (!text.empty() && text.Last() == wxT('\n'))
7024         length --;
7025
7026     action->SetPosition(pos);
7027
7028     // Set the range we'll need to delete in Undo
7029     action->SetRange(wxRichTextRange(pos, pos + length - 1));
7030
7031     buffer->SubmitAction(action);
7032
7033     return true;
7034 }
7035
7036 /// Submit command to insert the given text
7037 bool wxRichTextBuffer::InsertNewlineWithUndo(long pos, wxRichTextCtrl* ctrl, int flags)
7038 {
7039     return ctrl->GetFocusObject()->InsertNewlineWithUndo(this, pos, ctrl, flags);
7040 }
7041
7042 /// Submit command to insert the given text
7043 bool wxRichTextParagraphLayoutBox::InsertNewlineWithUndo(wxRichTextBuffer* buffer, long pos, wxRichTextCtrl* ctrl, int flags)
7044 {
7045     wxRichTextAction* action = new wxRichTextAction(NULL, _("Insert Text"), wxRICHTEXT_INSERT, buffer, this, ctrl, false);
7046
7047     wxRichTextAttr* p = NULL;
7048     wxRichTextAttr paraAttr;
7049     if (flags & wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE)
7050     {
7051         paraAttr = GetStyleForNewParagraph(buffer, pos, false, true /* look for next paragraph style */);
7052         if (!paraAttr.IsDefault())
7053             p = & paraAttr;
7054     }
7055
7056     wxRichTextAttr attr(buffer->GetDefaultStyle());
7057     // Don't include box attributes such as margins
7058     attr.GetTextBoxAttr().Reset();
7059
7060     wxRichTextParagraph* newPara = new wxRichTextParagraph(wxEmptyString, this, & attr);
7061     action->GetNewParagraphs().AppendChild(newPara);
7062     action->GetNewParagraphs().UpdateRanges();
7063     action->GetNewParagraphs().SetPartialParagraph(false);
7064     wxRichTextParagraph* para = GetParagraphAtPosition(pos, false);
7065     long pos1 = pos;
7066
7067     if (p)
7068         newPara->SetAttributes(*p);
7069
7070     if (flags & wxRICHTEXT_INSERT_INTERACTIVE)
7071     {
7072         if (para && para->GetRange().GetEnd() == pos)
7073             pos1 ++;
7074
7075         // Now see if we need to number the paragraph.
7076         if (newPara->GetAttributes().HasBulletNumber())
7077         {
7078             wxRichTextAttr numberingAttr;
7079             if (FindNextParagraphNumber(para, numberingAttr))
7080                 wxRichTextApplyStyle(newPara->GetAttributes(), (const wxRichTextAttr&) numberingAttr);
7081         }
7082     }
7083
7084     action->SetPosition(pos);
7085
7086     // Use the default character style
7087     if (!buffer->GetDefaultStyle().IsDefault() && newPara->GetChildren().GetFirst())
7088     {
7089         // Check whether the default style merely reflects the paragraph/basic style,
7090         // in which case don't apply it.
7091         wxRichTextAttr defaultStyle(buffer->GetDefaultStyle());
7092         defaultStyle.GetTextBoxAttr().Reset();
7093         wxRichTextAttr toApply;
7094         if (para)
7095         {
7096             wxRichTextAttr combinedAttr = para->GetCombinedAttributes(true /* include box attributes */);
7097             wxRichTextAttr newAttr;
7098             // This filters out attributes that are accounted for by the current
7099             // paragraph/basic style
7100             wxRichTextApplyStyle(toApply, defaultStyle, & combinedAttr);
7101         }
7102         else
7103             toApply = defaultStyle;
7104
7105         if (!toApply.IsDefault())
7106             newPara->GetChildren().GetFirst()->GetData()->SetAttributes(toApply);
7107     }
7108
7109     // Set the range we'll need to delete in Undo
7110     action->SetRange(wxRichTextRange(pos1, pos1));
7111
7112     buffer->SubmitAction(action);
7113
7114     return true;
7115 }
7116
7117 /// Submit command to insert the given image
7118 bool wxRichTextBuffer::InsertImageWithUndo(long pos, const wxRichTextImageBlock& imageBlock, wxRichTextCtrl* ctrl, int flags,
7119                                             const wxRichTextAttr& textAttr)
7120 {
7121     return ctrl->GetFocusObject()->InsertImageWithUndo(this, pos, imageBlock, ctrl, flags, textAttr);
7122 }
7123
7124 /// Submit command to insert the given image
7125 bool wxRichTextParagraphLayoutBox::InsertImageWithUndo(wxRichTextBuffer* buffer, long pos, const wxRichTextImageBlock& imageBlock,
7126                                                         wxRichTextCtrl* ctrl, int flags,
7127                                                         const wxRichTextAttr& textAttr)
7128 {
7129     wxRichTextAction* action = new wxRichTextAction(NULL, _("Insert Image"), wxRICHTEXT_INSERT, buffer, this, ctrl, false);
7130
7131     wxRichTextAttr* p = NULL;
7132     wxRichTextAttr paraAttr;
7133     if (flags & wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE)
7134     {
7135         paraAttr = GetStyleForNewParagraph(buffer, pos);
7136         if (!paraAttr.IsDefault())
7137             p = & paraAttr;
7138     }
7139
7140     wxRichTextAttr attr(buffer->GetDefaultStyle());
7141
7142     // Don't include box attributes such as margins
7143     attr.GetTextBoxAttr().Reset();
7144
7145     wxRichTextParagraph* newPara = new wxRichTextParagraph(this, & attr);
7146     if (p)
7147         newPara->SetAttributes(*p);
7148
7149     wxRichTextImage* imageObject = new wxRichTextImage(imageBlock, newPara);
7150     newPara->AppendChild(imageObject);
7151     imageObject->SetAttributes(textAttr);
7152     action->GetNewParagraphs().AppendChild(newPara);
7153     action->GetNewParagraphs().UpdateRanges();
7154
7155     action->GetNewParagraphs().SetPartialParagraph(true);
7156
7157     action->SetPosition(pos);
7158
7159     // Set the range we'll need to delete in Undo
7160     action->SetRange(wxRichTextRange(pos, pos));
7161
7162     buffer->SubmitAction(action);
7163
7164     return true;
7165 }
7166
7167 // Insert an object with no change of it
7168 wxRichTextObject* wxRichTextBuffer::InsertObjectWithUndo(long pos, wxRichTextObject *object, wxRichTextCtrl* ctrl, int flags)
7169 {
7170     return ctrl->GetFocusObject()->InsertObjectWithUndo(this, pos, object, ctrl, flags);
7171 }
7172
7173 // Insert an object with no change of it
7174 wxRichTextObject* wxRichTextParagraphLayoutBox::InsertObjectWithUndo(wxRichTextBuffer* buffer, long pos, wxRichTextObject *object, wxRichTextCtrl* ctrl, int flags)
7175 {
7176     wxRichTextAction* action = new wxRichTextAction(NULL, _("Insert Object"), wxRICHTEXT_INSERT, buffer, this, ctrl, false);
7177
7178     wxRichTextAttr* p = NULL;
7179     wxRichTextAttr paraAttr;
7180     if (flags & wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE)
7181     {
7182         paraAttr = GetStyleForNewParagraph(buffer, pos);
7183         if (!paraAttr.IsDefault())
7184             p = & paraAttr;
7185     }
7186
7187     wxRichTextAttr attr(buffer->GetDefaultStyle());
7188
7189     // Don't include box attributes such as margins
7190     attr.GetTextBoxAttr().Reset();
7191
7192     wxRichTextParagraph* newPara = new wxRichTextParagraph(this, & attr);
7193     if (p)
7194         newPara->SetAttributes(*p);
7195
7196     newPara->AppendChild(object);
7197     action->GetNewParagraphs().AppendChild(newPara);
7198     action->GetNewParagraphs().UpdateRanges();
7199
7200     action->GetNewParagraphs().SetPartialParagraph(true);
7201
7202     action->SetPosition(pos);
7203
7204     // Set the range we'll need to delete in Undo
7205     action->SetRange(wxRichTextRange(pos, pos));
7206
7207     buffer->SubmitAction(action);
7208
7209     wxRichTextObject* obj = GetLeafObjectAtPosition(pos);
7210     return obj;
7211 }
7212
7213 wxRichTextField* wxRichTextParagraphLayoutBox::InsertFieldWithUndo(wxRichTextBuffer* buffer, long pos, const wxString& fieldType,
7214                                                         const wxRichTextProperties& properties,
7215                                                         wxRichTextCtrl* ctrl, int flags,
7216                                                         const wxRichTextAttr& textAttr)
7217 {
7218     wxRichTextAction* action = new wxRichTextAction(NULL, _("Insert Field"), wxRICHTEXT_INSERT, buffer, this, ctrl, false);
7219
7220     wxRichTextAttr* p = NULL;
7221     wxRichTextAttr paraAttr;
7222     if (flags & wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE)
7223     {
7224         paraAttr = GetStyleForNewParagraph(buffer, pos);
7225         if (!paraAttr.IsDefault())
7226             p = & paraAttr;
7227     }
7228
7229     wxRichTextAttr attr(buffer->GetDefaultStyle());
7230
7231     // Don't include box attributes such as margins
7232     attr.GetTextBoxAttr().Reset();
7233
7234     wxRichTextParagraph* newPara = new wxRichTextParagraph(this, & attr);
7235     if (p)
7236         newPara->SetAttributes(*p);
7237
7238     wxRichTextField* fieldObject = new wxRichTextField();
7239     fieldObject->wxRichTextObject::SetProperties(properties);
7240     fieldObject->SetFieldType(fieldType);
7241     fieldObject->SetAttributes(textAttr);
7242     newPara->AppendChild(fieldObject);
7243     action->GetNewParagraphs().AppendChild(newPara);
7244     action->GetNewParagraphs().UpdateRanges();
7245     action->GetNewParagraphs().SetPartialParagraph(true);
7246     action->SetPosition(pos);
7247
7248     // Set the range we'll need to delete in Undo
7249     action->SetRange(wxRichTextRange(pos, pos));
7250
7251     buffer->SubmitAction(action);
7252
7253     wxRichTextField* obj = wxDynamicCast(GetLeafObjectAtPosition(pos), wxRichTextField);
7254     return obj;
7255 }
7256
7257 /// Get the style that is appropriate for a new paragraph at this position.
7258 /// If the previous paragraph has a paragraph style name, look up the next-paragraph
7259 /// style.
7260 wxRichTextAttr wxRichTextParagraphLayoutBox::GetStyleForNewParagraph(wxRichTextBuffer* buffer, long pos, bool caretPosition, bool lookUpNewParaStyle) const
7261 {
7262     wxRichTextParagraph* para = GetParagraphAtPosition(pos, caretPosition);
7263     if (para)
7264     {
7265         wxRichTextAttr attr;
7266         bool foundAttributes = false;
7267
7268         // Look for a matching paragraph style
7269         if (lookUpNewParaStyle && !para->GetAttributes().GetParagraphStyleName().IsEmpty() && buffer->GetStyleSheet())
7270         {
7271             wxRichTextParagraphStyleDefinition* paraDef = buffer->GetStyleSheet()->FindParagraphStyle(para->GetAttributes().GetParagraphStyleName());
7272             if (paraDef)
7273             {
7274                 // If we're not at the end of the paragraph, then we apply THIS style, and not the designated next style.
7275                 if (para->GetRange().GetEnd() == pos && !paraDef->GetNextStyle().IsEmpty())
7276                 {
7277                     wxRichTextParagraphStyleDefinition* nextParaDef = buffer->GetStyleSheet()->FindParagraphStyle(paraDef->GetNextStyle());
7278                     if (nextParaDef)
7279                     {
7280                         foundAttributes = true;
7281                         attr = nextParaDef->GetStyleMergedWithBase(buffer->GetStyleSheet());
7282                     }
7283                 }
7284
7285                 // If we didn't find the 'next style', use this style instead.
7286                 if (!foundAttributes)
7287                 {
7288                     foundAttributes = true;
7289                     attr = paraDef->GetStyleMergedWithBase(buffer->GetStyleSheet());
7290                 }
7291             }
7292         }
7293
7294         // Also apply list style if present
7295         if (lookUpNewParaStyle && !para->GetAttributes().GetListStyleName().IsEmpty() && buffer->GetStyleSheet())
7296         {
7297             wxRichTextListStyleDefinition* listDef = buffer->GetStyleSheet()->FindListStyle(para->GetAttributes().GetListStyleName());
7298             if (listDef)
7299             {
7300                 int thisIndent = para->GetAttributes().GetLeftIndent();
7301                 int thisLevel = para->GetAttributes().HasOutlineLevel() ? para->GetAttributes().GetOutlineLevel() : listDef->FindLevelForIndent(thisIndent);
7302
7303                 // Apply the overall list style, and item style for this level
7304                 wxRichTextAttr listStyle(listDef->GetCombinedStyleForLevel(thisLevel, buffer->GetStyleSheet()));
7305                 wxRichTextApplyStyle(attr, listStyle);
7306                 attr.SetOutlineLevel(thisLevel);
7307                 if (para->GetAttributes().HasBulletNumber())
7308                     attr.SetBulletNumber(para->GetAttributes().GetBulletNumber());
7309             }
7310         }
7311
7312         if (!foundAttributes)
7313         {
7314             attr = para->GetAttributes();
7315             int flags = attr.GetFlags();
7316
7317             // Eliminate character styles
7318             flags &= ( (~ wxTEXT_ATTR_FONT) |
7319                     (~ wxTEXT_ATTR_TEXT_COLOUR) |
7320                     (~ wxTEXT_ATTR_BACKGROUND_COLOUR) );
7321             attr.SetFlags(flags);
7322         }
7323
7324         return attr;
7325     }
7326     else
7327         return wxRichTextAttr();
7328 }
7329
7330 /// Submit command to delete this range
7331 bool wxRichTextBuffer::DeleteRangeWithUndo(const wxRichTextRange& range, wxRichTextCtrl* ctrl)
7332 {
7333     return ctrl->GetFocusObject()->DeleteRangeWithUndo(range, ctrl, this);
7334 }
7335
7336 /// Submit command to delete this range
7337 bool wxRichTextParagraphLayoutBox::DeleteRangeWithUndo(const wxRichTextRange& range, wxRichTextCtrl* ctrl, wxRichTextBuffer* buffer)
7338 {
7339     wxRichTextAction* action = new wxRichTextAction(NULL, _("Delete"), wxRICHTEXT_DELETE, buffer, this, ctrl);
7340
7341     action->SetPosition(ctrl->GetCaretPosition());
7342
7343     // Set the range to delete
7344     action->SetRange(range);
7345
7346     // Copy the fragment that we'll need to restore in Undo
7347     CopyFragment(range, action->GetOldParagraphs());
7348
7349     // See if we're deleting a paragraph marker, in which case we need to
7350     // make a note not to copy the attributes from the 2nd paragraph to the 1st.
7351     if (range.GetStart() == range.GetEnd())
7352     {
7353         wxRichTextParagraph* para = GetParagraphAtPosition(range.GetStart());
7354         if (para && para->GetRange().GetEnd() == range.GetEnd())
7355         {
7356             wxRichTextParagraph* nextPara = GetParagraphAtPosition(range.GetStart()+1);
7357             if (nextPara && nextPara != para)
7358             {
7359                 action->GetOldParagraphs().GetChildren().GetFirst()->GetData()->SetAttributes(nextPara->GetAttributes());
7360                 action->GetOldParagraphs().GetAttributes().SetFlags(action->GetOldParagraphs().GetAttributes().GetFlags() | wxTEXT_ATTR_KEEP_FIRST_PARA_STYLE);
7361             }
7362         }
7363     }
7364
7365     buffer->SubmitAction(action);
7366
7367     return true;
7368 }
7369
7370 /// Collapse undo/redo commands
7371 bool wxRichTextBuffer::BeginBatchUndo(const wxString& cmdName)
7372 {
7373     if (m_batchedCommandDepth == 0)
7374     {
7375         wxASSERT(m_batchedCommand == NULL);
7376         if (m_batchedCommand)
7377         {
7378             GetCommandProcessor()->Store(m_batchedCommand);
7379         }
7380         m_batchedCommand = new wxRichTextCommand(cmdName);
7381     }
7382
7383     m_batchedCommandDepth ++;
7384
7385     return true;
7386 }
7387
7388 /// Collapse undo/redo commands
7389 bool wxRichTextBuffer::EndBatchUndo()
7390 {
7391     m_batchedCommandDepth --;
7392
7393     wxASSERT(m_batchedCommandDepth >= 0);
7394     wxASSERT(m_batchedCommand != NULL);
7395
7396     if (m_batchedCommandDepth == 0)
7397     {
7398         GetCommandProcessor()->Store(m_batchedCommand);
7399         m_batchedCommand = NULL;
7400     }
7401
7402     return true;
7403 }
7404
7405 /// Submit immediately, or delay according to whether collapsing is on
7406 bool wxRichTextBuffer::SubmitAction(wxRichTextAction* action)
7407 {
7408     if (action && !action->GetNewParagraphs().IsEmpty())
7409         PrepareContent(action->GetNewParagraphs());
7410
7411     if (BatchingUndo() && m_batchedCommand && !SuppressingUndo())
7412     {
7413         wxRichTextCommand* cmd = new wxRichTextCommand(action->GetName());
7414         cmd->AddAction(action);
7415         cmd->Do();
7416         cmd->GetActions().Clear();
7417         delete cmd;
7418
7419         m_batchedCommand->AddAction(action);
7420     }
7421     else
7422     {
7423         wxRichTextCommand* cmd = new wxRichTextCommand(action->GetName());
7424         cmd->AddAction(action);
7425
7426         // Only store it if we're not suppressing undo.
7427         return GetCommandProcessor()->Submit(cmd, !SuppressingUndo());
7428     }
7429
7430     return true;
7431 }
7432
7433 /// Begin suppressing undo/redo commands.
7434 bool wxRichTextBuffer::BeginSuppressUndo()
7435 {
7436     m_suppressUndo ++;
7437
7438     return true;
7439 }
7440
7441 /// End suppressing undo/redo commands.
7442 bool wxRichTextBuffer::EndSuppressUndo()
7443 {
7444     m_suppressUndo --;
7445
7446     return true;
7447 }
7448
7449 /// Begin using a style
7450 bool wxRichTextBuffer::BeginStyle(const wxRichTextAttr& style)
7451 {
7452     wxRichTextAttr newStyle(GetDefaultStyle());
7453     newStyle.GetTextBoxAttr().Reset();
7454
7455     // Save the old default style
7456     m_attributeStack.Append((wxObject*) new wxRichTextAttr(newStyle));
7457
7458     wxRichTextApplyStyle(newStyle, style);
7459     newStyle.SetFlags(style.GetFlags()|newStyle.GetFlags());
7460
7461     SetDefaultStyle(newStyle);
7462
7463     return true;
7464 }
7465
7466 /// End the style
7467 bool wxRichTextBuffer::EndStyle()
7468 {
7469     if (!m_attributeStack.GetFirst())
7470     {
7471         wxLogDebug(_("Too many EndStyle calls!"));
7472         return false;
7473     }
7474
7475     wxList::compatibility_iterator node = m_attributeStack.GetLast();
7476     wxRichTextAttr* attr = (wxRichTextAttr*)node->GetData();
7477     m_attributeStack.Erase(node);
7478
7479     SetDefaultStyle(*attr);
7480
7481     delete attr;
7482     return true;
7483 }
7484
7485 /// End all styles
7486 bool wxRichTextBuffer::EndAllStyles()
7487 {
7488     while (m_attributeStack.GetCount() != 0)
7489         EndStyle();
7490     return true;
7491 }
7492
7493 /// Clear the style stack
7494 void wxRichTextBuffer::ClearStyleStack()
7495 {
7496     for (wxList::compatibility_iterator node = m_attributeStack.GetFirst(); node; node = node->GetNext())
7497         delete (wxRichTextAttr*) node->GetData();
7498     m_attributeStack.Clear();
7499 }
7500
7501 /// Begin using bold
7502 bool wxRichTextBuffer::BeginBold()
7503 {
7504     wxRichTextAttr attr;
7505     attr.SetFontWeight(wxFONTWEIGHT_BOLD);
7506
7507     return BeginStyle(attr);
7508 }
7509
7510 /// Begin using italic
7511 bool wxRichTextBuffer::BeginItalic()
7512 {
7513     wxRichTextAttr attr;
7514     attr.SetFontStyle(wxFONTSTYLE_ITALIC);
7515
7516     return BeginStyle(attr);
7517 }
7518
7519 /// Begin using underline
7520 bool wxRichTextBuffer::BeginUnderline()
7521 {
7522     wxRichTextAttr attr;
7523     attr.SetFontUnderlined(true);
7524
7525     return BeginStyle(attr);
7526 }
7527
7528 /// Begin using point size
7529 bool wxRichTextBuffer::BeginFontSize(int pointSize)
7530 {
7531     wxRichTextAttr attr;
7532     attr.SetFontSize(pointSize);
7533
7534     return BeginStyle(attr);
7535 }
7536
7537 /// Begin using this font
7538 bool wxRichTextBuffer::BeginFont(const wxFont& font)
7539 {
7540     wxRichTextAttr attr;
7541     attr.SetFont(font);
7542
7543     return BeginStyle(attr);
7544 }
7545
7546 /// Begin using this colour
7547 bool wxRichTextBuffer::BeginTextColour(const wxColour& colour)
7548 {
7549     wxRichTextAttr attr;
7550     attr.SetFlags(wxTEXT_ATTR_TEXT_COLOUR);
7551     attr.SetTextColour(colour);
7552
7553     return BeginStyle(attr);
7554 }
7555
7556 /// Begin using alignment
7557 bool wxRichTextBuffer::BeginAlignment(wxTextAttrAlignment alignment)
7558 {
7559     wxRichTextAttr attr;
7560     attr.SetFlags(wxTEXT_ATTR_ALIGNMENT);
7561     attr.SetAlignment(alignment);
7562
7563     return BeginStyle(attr);
7564 }
7565
7566 /// Begin left indent
7567 bool wxRichTextBuffer::BeginLeftIndent(int leftIndent, int leftSubIndent)
7568 {
7569     wxRichTextAttr attr;
7570     attr.SetFlags(wxTEXT_ATTR_LEFT_INDENT);
7571     attr.SetLeftIndent(leftIndent, leftSubIndent);
7572
7573     return BeginStyle(attr);
7574 }
7575
7576 /// Begin right indent
7577 bool wxRichTextBuffer::BeginRightIndent(int rightIndent)
7578 {
7579     wxRichTextAttr attr;
7580     attr.SetFlags(wxTEXT_ATTR_RIGHT_INDENT);
7581     attr.SetRightIndent(rightIndent);
7582
7583     return BeginStyle(attr);
7584 }
7585
7586 /// Begin paragraph spacing
7587 bool wxRichTextBuffer::BeginParagraphSpacing(int before, int after)
7588 {
7589     long flags = 0;
7590     if (before != 0)
7591         flags |= wxTEXT_ATTR_PARA_SPACING_BEFORE;
7592     if (after != 0)
7593         flags |= wxTEXT_ATTR_PARA_SPACING_AFTER;
7594
7595     wxRichTextAttr attr;
7596     attr.SetFlags(flags);
7597     attr.SetParagraphSpacingBefore(before);
7598     attr.SetParagraphSpacingAfter(after);
7599
7600     return BeginStyle(attr);
7601 }
7602
7603 /// Begin line spacing
7604 bool wxRichTextBuffer::BeginLineSpacing(int lineSpacing)
7605 {
7606     wxRichTextAttr attr;
7607     attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
7608     attr.SetLineSpacing(lineSpacing);
7609
7610     return BeginStyle(attr);
7611 }
7612
7613 /// Begin numbered bullet
7614 bool wxRichTextBuffer::BeginNumberedBullet(int bulletNumber, int leftIndent, int leftSubIndent, int bulletStyle)
7615 {
7616     wxRichTextAttr attr;
7617     attr.SetFlags(wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_LEFT_INDENT);
7618     attr.SetBulletStyle(bulletStyle);
7619     attr.SetBulletNumber(bulletNumber);
7620     attr.SetLeftIndent(leftIndent, leftSubIndent);
7621
7622     return BeginStyle(attr);
7623 }
7624
7625 /// Begin symbol bullet
7626 bool wxRichTextBuffer::BeginSymbolBullet(const wxString& symbol, int leftIndent, int leftSubIndent, int bulletStyle)
7627 {
7628     wxRichTextAttr attr;
7629     attr.SetFlags(wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_LEFT_INDENT);
7630     attr.SetBulletStyle(bulletStyle);
7631     attr.SetLeftIndent(leftIndent, leftSubIndent);
7632     attr.SetBulletText(symbol);
7633
7634     return BeginStyle(attr);
7635 }
7636
7637 /// Begin standard bullet
7638 bool wxRichTextBuffer::BeginStandardBullet(const wxString& bulletName, int leftIndent, int leftSubIndent, int bulletStyle)
7639 {
7640     wxRichTextAttr attr;
7641     attr.SetFlags(wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_LEFT_INDENT);
7642     attr.SetBulletStyle(bulletStyle);
7643     attr.SetLeftIndent(leftIndent, leftSubIndent);
7644     attr.SetBulletName(bulletName);
7645
7646     return BeginStyle(attr);
7647 }
7648
7649 /// Begin named character style
7650 bool wxRichTextBuffer::BeginCharacterStyle(const wxString& characterStyle)
7651 {
7652     if (GetStyleSheet())
7653     {
7654         wxRichTextCharacterStyleDefinition* def = GetStyleSheet()->FindCharacterStyle(characterStyle);
7655         if (def)
7656         {
7657             wxRichTextAttr attr = def->GetStyleMergedWithBase(GetStyleSheet());
7658             return BeginStyle(attr);
7659         }
7660     }
7661     return false;
7662 }
7663
7664 /// Begin named paragraph style
7665 bool wxRichTextBuffer::BeginParagraphStyle(const wxString& paragraphStyle)
7666 {
7667     if (GetStyleSheet())
7668     {
7669         wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->FindParagraphStyle(paragraphStyle);
7670         if (def)
7671         {
7672             wxRichTextAttr attr = def->GetStyleMergedWithBase(GetStyleSheet());
7673             return BeginStyle(attr);
7674         }
7675     }
7676     return false;
7677 }
7678
7679 /// Begin named list style
7680 bool wxRichTextBuffer::BeginListStyle(const wxString& listStyle, int level, int number)
7681 {
7682     if (GetStyleSheet())
7683     {
7684         wxRichTextListStyleDefinition* def = GetStyleSheet()->FindListStyle(listStyle);
7685         if (def)
7686         {
7687             wxRichTextAttr attr(def->GetCombinedStyleForLevel(level));
7688
7689             attr.SetBulletNumber(number);
7690
7691             return BeginStyle(attr);
7692         }
7693     }
7694     return false;
7695 }
7696
7697 /// Begin URL
7698 bool wxRichTextBuffer::BeginURL(const wxString& url, const wxString& characterStyle)
7699 {
7700     wxRichTextAttr attr;
7701
7702     if (!characterStyle.IsEmpty() && GetStyleSheet())
7703     {
7704         wxRichTextCharacterStyleDefinition* def = GetStyleSheet()->FindCharacterStyle(characterStyle);
7705         if (def)
7706         {
7707             attr = def->GetStyleMergedWithBase(GetStyleSheet());
7708         }
7709     }
7710     attr.SetURL(url);
7711
7712     return BeginStyle(attr);
7713 }
7714
7715 /// Adds a handler to the end
7716 void wxRichTextBuffer::AddHandler(wxRichTextFileHandler *handler)
7717 {
7718     sm_handlers.Append(handler);
7719 }
7720
7721 /// Inserts a handler at the front
7722 void wxRichTextBuffer::InsertHandler(wxRichTextFileHandler *handler)
7723 {
7724     sm_handlers.Insert( handler );
7725 }
7726
7727 /// Removes a handler
7728 bool wxRichTextBuffer::RemoveHandler(const wxString& name)
7729 {
7730     wxRichTextFileHandler *handler = FindHandler(name);
7731     if (handler)
7732     {
7733         sm_handlers.DeleteObject(handler);
7734         delete handler;
7735         return true;
7736     }
7737     else
7738         return false;
7739 }
7740
7741 /// Finds a handler by filename or, if supplied, type
7742 wxRichTextFileHandler *wxRichTextBuffer::FindHandlerFilenameOrType(const wxString& filename,
7743                                                                    wxRichTextFileType imageType)
7744 {
7745     if (imageType != wxRICHTEXT_TYPE_ANY)
7746         return FindHandler(imageType);
7747     else if (!filename.IsEmpty())
7748     {
7749         wxString path, file, ext;
7750         wxFileName::SplitPath(filename, & path, & file, & ext);
7751         return FindHandler(ext, imageType);
7752     }
7753     else
7754         return NULL;
7755 }
7756
7757
7758 /// Finds a handler by name
7759 wxRichTextFileHandler* wxRichTextBuffer::FindHandler(const wxString& name)
7760 {
7761     wxList::compatibility_iterator node = sm_handlers.GetFirst();
7762     while (node)
7763     {
7764         wxRichTextFileHandler *handler = (wxRichTextFileHandler*)node->GetData();
7765         if (handler->GetName().Lower() == name.Lower()) return handler;
7766
7767         node = node->GetNext();
7768     }
7769     return NULL;
7770 }
7771
7772 /// Finds a handler by extension and type
7773 wxRichTextFileHandler* wxRichTextBuffer::FindHandler(const wxString& extension, wxRichTextFileType type)
7774 {
7775     wxList::compatibility_iterator node = sm_handlers.GetFirst();
7776     while (node)
7777     {
7778         wxRichTextFileHandler *handler = (wxRichTextFileHandler*)node->GetData();
7779         if ( handler->GetExtension().Lower() == extension.Lower() &&
7780             (type == wxRICHTEXT_TYPE_ANY || handler->GetType() == type) )
7781             return handler;
7782         node = node->GetNext();
7783     }
7784     return 0;
7785 }
7786
7787 /// Finds a handler by type
7788 wxRichTextFileHandler* wxRichTextBuffer::FindHandler(wxRichTextFileType type)
7789 {
7790     wxList::compatibility_iterator node = sm_handlers.GetFirst();
7791     while (node)
7792     {
7793         wxRichTextFileHandler *handler = (wxRichTextFileHandler *)node->GetData();
7794         if (handler->GetType() == type) return handler;
7795         node = node->GetNext();
7796     }
7797     return NULL;
7798 }
7799
7800 void wxRichTextBuffer::InitStandardHandlers()
7801 {
7802     if (!FindHandler(wxRICHTEXT_TYPE_TEXT))
7803         AddHandler(new wxRichTextPlainTextHandler);
7804 }
7805
7806 void wxRichTextBuffer::CleanUpHandlers()
7807 {
7808     wxList::compatibility_iterator node = sm_handlers.GetFirst();
7809     while (node)
7810     {
7811         wxRichTextFileHandler* handler = (wxRichTextFileHandler*)node->GetData();
7812         wxList::compatibility_iterator next = node->GetNext();
7813         delete handler;
7814         node = next;
7815     }
7816
7817     sm_handlers.Clear();
7818 }
7819
7820 wxString wxRichTextBuffer::GetExtWildcard(bool combine, bool save, wxArrayInt* types)
7821 {
7822     if (types)
7823         types->Clear();
7824
7825     wxString wildcard;
7826
7827     wxList::compatibility_iterator node = GetHandlers().GetFirst();
7828     int count = 0;
7829     while (node)
7830     {
7831         wxRichTextFileHandler* handler = (wxRichTextFileHandler*) node->GetData();
7832         if (handler->IsVisible() && ((save && handler->CanSave()) || (!save && handler->CanLoad())))
7833         {
7834             if (combine)
7835             {
7836                 if (count > 0)
7837                     wildcard += wxT(";");
7838                 wildcard += wxT("*.") + handler->GetExtension();
7839             }
7840             else
7841             {
7842                 if (count > 0)
7843                     wildcard += wxT("|");
7844                 wildcard += handler->GetName();
7845                 wildcard += wxT(" ");
7846                 wildcard += _("files");
7847                 wildcard += wxT(" (*.");
7848                 wildcard += handler->GetExtension();
7849                 wildcard += wxT(")|*.");
7850                 wildcard += handler->GetExtension();
7851                 if (types)
7852                     types->Add(handler->GetType());
7853             }
7854             count ++;
7855         }
7856
7857         node = node->GetNext();
7858     }
7859
7860     if (combine)
7861         wildcard = wxT("(") + wildcard + wxT(")|") + wildcard;
7862     return wildcard;
7863 }
7864
7865 /// Load a file
7866 bool wxRichTextBuffer::LoadFile(const wxString& filename, wxRichTextFileType type)
7867 {
7868     wxRichTextFileHandler* handler = FindHandlerFilenameOrType(filename, type);
7869     if (handler)
7870     {
7871         SetDefaultStyle(wxRichTextAttr());
7872         handler->SetFlags(GetHandlerFlags());
7873         bool success = handler->LoadFile(this, filename);
7874         Invalidate(wxRICHTEXT_ALL);
7875         return success;
7876     }
7877     else
7878         return false;
7879 }
7880
7881 /// Save a file
7882 bool wxRichTextBuffer::SaveFile(const wxString& filename, wxRichTextFileType type)
7883 {
7884     wxRichTextFileHandler* handler = FindHandlerFilenameOrType(filename, type);
7885     if (handler)
7886     {
7887         handler->SetFlags(GetHandlerFlags());
7888         return handler->SaveFile(this, filename);
7889     }
7890     else
7891         return false;
7892 }
7893
7894 /// Load from a stream
7895 bool wxRichTextBuffer::LoadFile(wxInputStream& stream, wxRichTextFileType type)
7896 {
7897     wxRichTextFileHandler* handler = FindHandler(type);
7898     if (handler)
7899     {
7900         SetDefaultStyle(wxRichTextAttr());
7901         handler->SetFlags(GetHandlerFlags());
7902         bool success = handler->LoadFile(this, stream);
7903         Invalidate(wxRICHTEXT_ALL);
7904         return success;
7905     }
7906     else
7907         return false;
7908 }
7909
7910 /// Save to a stream
7911 bool wxRichTextBuffer::SaveFile(wxOutputStream& stream, wxRichTextFileType type)
7912 {
7913     wxRichTextFileHandler* handler = FindHandler(type);
7914     if (handler)
7915     {
7916         handler->SetFlags(GetHandlerFlags());
7917         return handler->SaveFile(this, stream);
7918     }
7919     else
7920         return false;
7921 }
7922
7923 /// Copy the range to the clipboard
7924 bool wxRichTextBuffer::CopyToClipboard(const wxRichTextRange& range)
7925 {
7926     bool success = false;
7927     wxRichTextParagraphLayoutBox* container = this;
7928     if (GetRichTextCtrl())
7929         container = GetRichTextCtrl()->GetFocusObject();
7930
7931 #if wxUSE_CLIPBOARD && wxUSE_DATAOBJ
7932
7933     if (!wxTheClipboard->IsOpened() && wxTheClipboard->Open())
7934     {
7935         wxTheClipboard->Clear();
7936
7937         // Add composite object
7938
7939         wxDataObjectComposite* compositeObject = new wxDataObjectComposite();
7940
7941         {
7942             wxString text = container->GetTextForRange(range);
7943
7944 #ifdef __WXMSW__
7945             text = wxTextFile::Translate(text, wxTextFileType_Dos);
7946 #endif
7947
7948             compositeObject->Add(new wxTextDataObject(text), false /* not preferred */);
7949         }
7950
7951         // Add rich text buffer data object. This needs the XML handler to be present.
7952
7953         if (FindHandler(wxRICHTEXT_TYPE_XML))
7954         {
7955             wxRichTextBuffer* richTextBuf = new wxRichTextBuffer;
7956             container->CopyFragment(range, *richTextBuf);
7957
7958             compositeObject->Add(new wxRichTextBufferDataObject(richTextBuf), true /* preferred */);
7959         }
7960
7961         if (wxTheClipboard->SetData(compositeObject))
7962             success = true;
7963
7964         wxTheClipboard->Close();
7965     }
7966
7967 #else
7968     wxUnusedVar(range);
7969 #endif
7970     return success;
7971 }
7972
7973 /// Paste the clipboard content to the buffer
7974 bool wxRichTextBuffer::PasteFromClipboard(long position)
7975 {
7976     bool success = false;
7977     wxRichTextParagraphLayoutBox* container = this;
7978     if (GetRichTextCtrl())
7979         container = GetRichTextCtrl()->GetFocusObject();
7980
7981 #if wxUSE_CLIPBOARD && wxUSE_DATAOBJ
7982     if (CanPasteFromClipboard())
7983     {
7984         if (wxTheClipboard->Open())
7985         {
7986             if (wxTheClipboard->IsSupported(wxDataFormat(wxRichTextBufferDataObject::GetRichTextBufferFormatId())))
7987             {
7988                 wxRichTextBufferDataObject data;
7989                 wxTheClipboard->GetData(data);
7990                 wxRichTextBuffer* richTextBuffer = data.GetRichTextBuffer();
7991                 if (richTextBuffer)
7992                 {
7993                     container->InsertParagraphsWithUndo(this, position+1, *richTextBuffer, GetRichTextCtrl(), 0);
7994                     if (GetRichTextCtrl())
7995                         GetRichTextCtrl()->ShowPosition(position + richTextBuffer->GetOwnRange().GetEnd());
7996                     delete richTextBuffer;
7997                 }
7998             }
7999             else if (wxTheClipboard->IsSupported(wxDF_TEXT)
8000  #if wxUSE_UNICODE
8001                      || wxTheClipboard->IsSupported(wxDF_UNICODETEXT)
8002  #endif
8003                     )
8004             {
8005                 wxTextDataObject data;
8006                 wxTheClipboard->GetData(data);
8007                 wxString text(data.GetText());
8008 #ifdef __WXMSW__
8009                 wxString text2;
8010                 text2.Alloc(text.Length()+1);
8011                 size_t i;
8012                 for (i = 0; i < text.Length(); i++)
8013                 {
8014                     wxChar ch = text[i];
8015                     if (ch != wxT('\r'))
8016                         text2 += ch;
8017                 }
8018 #else
8019                 wxString text2 = text;
8020 #endif
8021                 container->InsertTextWithUndo(this, position+1, text2, GetRichTextCtrl(), wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
8022
8023                 if (GetRichTextCtrl())
8024                     GetRichTextCtrl()->ShowPosition(position + text2.Length());
8025
8026                 success = true;
8027             }
8028             else if (wxTheClipboard->IsSupported(wxDF_BITMAP))
8029             {
8030                 wxBitmapDataObject data;
8031                 wxTheClipboard->GetData(data);
8032                 wxBitmap bitmap(data.GetBitmap());
8033                 wxImage image(bitmap.ConvertToImage());
8034
8035                 wxRichTextAction* action = new wxRichTextAction(NULL, _("Insert Image"), wxRICHTEXT_INSERT, this, container, GetRichTextCtrl(), false);
8036
8037                 action->GetNewParagraphs().AddImage(image);
8038
8039                 if (action->GetNewParagraphs().GetChildCount() == 1)
8040                     action->GetNewParagraphs().SetPartialParagraph(true);
8041
8042                 action->SetPosition(position+1);
8043
8044                 // Set the range we'll need to delete in Undo
8045                 action->SetRange(wxRichTextRange(position+1, position+1));
8046
8047                 SubmitAction(action);
8048
8049                 success = true;
8050             }
8051             wxTheClipboard->Close();
8052         }
8053     }
8054 #else
8055     wxUnusedVar(position);
8056 #endif
8057     return success;
8058 }
8059
8060 /// Can we paste from the clipboard?
8061 bool wxRichTextBuffer::CanPasteFromClipboard() const
8062 {
8063     bool canPaste = false;
8064 #if wxUSE_CLIPBOARD && wxUSE_DATAOBJ
8065     if (!wxTheClipboard->IsOpened() && wxTheClipboard->Open())
8066     {
8067         if (wxTheClipboard->IsSupported(wxDF_TEXT)
8068 #if wxUSE_UNICODE
8069             || wxTheClipboard->IsSupported(wxDF_UNICODETEXT)
8070 #endif
8071             || wxTheClipboard->IsSupported(wxDataFormat(wxRichTextBufferDataObject::GetRichTextBufferFormatId())) ||
8072             wxTheClipboard->IsSupported(wxDF_BITMAP))
8073         {
8074             canPaste = true;
8075         }
8076         wxTheClipboard->Close();
8077     }
8078 #endif
8079     return canPaste;
8080 }
8081
8082 /// Dumps contents of buffer for debugging purposes
8083 void wxRichTextBuffer::Dump()
8084 {
8085     wxString text;
8086     {
8087         wxStringOutputStream stream(& text);
8088         wxTextOutputStream textStream(stream);
8089         Dump(textStream);
8090     }
8091
8092     wxLogDebug(text);
8093 }
8094
8095 /// Add an event handler
8096 bool wxRichTextBuffer::AddEventHandler(wxEvtHandler* handler)
8097 {
8098     m_eventHandlers.Append(handler);
8099     return true;
8100 }
8101
8102 /// Remove an event handler
8103 bool wxRichTextBuffer::RemoveEventHandler(wxEvtHandler* handler, bool deleteHandler)
8104 {
8105     wxList::compatibility_iterator node = m_eventHandlers.Find(handler);
8106     if (node)
8107     {
8108         m_eventHandlers.Erase(node);
8109         if (deleteHandler)
8110             delete handler;
8111
8112         return true;
8113     }
8114     else
8115         return false;
8116 }
8117
8118 /// Clear event handlers
8119 void wxRichTextBuffer::ClearEventHandlers()
8120 {
8121     m_eventHandlers.Clear();
8122 }
8123
8124 /// Send event to event handlers. If sendToAll is true, will send to all event handlers,
8125 /// otherwise will stop at the first successful one.
8126 bool wxRichTextBuffer::SendEvent(wxEvent& event, bool sendToAll)
8127 {
8128     bool success = false;
8129     for (wxList::compatibility_iterator node = m_eventHandlers.GetFirst(); node; node = node->GetNext())
8130     {
8131         wxEvtHandler* handler = (wxEvtHandler*) node->GetData();
8132         if (handler->ProcessEvent(event))
8133         {
8134             success = true;
8135             if (!sendToAll)
8136                 return true;
8137         }
8138     }
8139     return success;
8140 }
8141
8142 /// Set style sheet and notify of the change
8143 bool wxRichTextBuffer::SetStyleSheetAndNotify(wxRichTextStyleSheet* sheet)
8144 {
8145     wxRichTextStyleSheet* oldSheet = GetStyleSheet();
8146
8147     wxWindowID winid = wxID_ANY;
8148     if (GetRichTextCtrl())
8149         winid = GetRichTextCtrl()->GetId();
8150
8151     wxRichTextEvent event(wxEVT_COMMAND_RICHTEXT_STYLESHEET_REPLACING, winid);
8152     event.SetEventObject(GetRichTextCtrl());
8153     event.SetContainer(GetRichTextCtrl()->GetFocusObject());
8154     event.SetOldStyleSheet(oldSheet);
8155     event.SetNewStyleSheet(sheet);
8156     event.Allow();
8157
8158     if (SendEvent(event) && !event.IsAllowed())
8159     {
8160         if (sheet != oldSheet)
8161             delete sheet;
8162
8163         return false;
8164     }
8165
8166     if (oldSheet && oldSheet != sheet)
8167         delete oldSheet;
8168
8169     SetStyleSheet(sheet);
8170
8171     event.SetEventType(wxEVT_COMMAND_RICHTEXT_STYLESHEET_REPLACED);
8172     event.SetOldStyleSheet(NULL);
8173     event.Allow();
8174
8175     return SendEvent(event);
8176 }
8177
8178 /// Set renderer, deleting old one
8179 void wxRichTextBuffer::SetRenderer(wxRichTextRenderer* renderer)
8180 {
8181     if (sm_renderer)
8182         delete sm_renderer;
8183     sm_renderer = renderer;
8184 }
8185
8186 /// Hit-testing: returns a flag indicating hit test details, plus
8187 /// information about position
8188 int wxRichTextBuffer::HitTest(wxDC& dc, wxRichTextDrawingContext& context, const wxPoint& pt, long& textPosition, wxRichTextObject** obj, wxRichTextObject** contextObj, int flags)
8189 {
8190     int ret = wxRichTextParagraphLayoutBox::HitTest(dc, context, pt, textPosition, obj, contextObj, flags);
8191     if (ret != wxRICHTEXT_HITTEST_NONE)
8192     {
8193         return ret;
8194     }
8195     else
8196     {
8197         textPosition = m_ownRange.GetEnd()-1;
8198         *obj = this;
8199         *contextObj = this;
8200         return wxRICHTEXT_HITTEST_AFTER|wxRICHTEXT_HITTEST_OUTSIDE;
8201     }
8202 }
8203
8204 void wxRichTextBuffer::SetFontScale(double fontScale)
8205 {
8206     m_fontScale = fontScale;
8207     m_fontTable.SetFontScale(fontScale);
8208 }
8209
8210 void wxRichTextBuffer::SetDimensionScale(double dimScale)
8211 {
8212     m_dimensionScale = dimScale;
8213 }
8214
8215 bool wxRichTextStdRenderer::DrawStandardBullet(wxRichTextParagraph* paragraph, wxDC& dc, const wxRichTextAttr& bulletAttr, const wxRect& rect)
8216 {
8217     if (bulletAttr.GetTextColour().IsOk())
8218     {
8219         wxCheckSetPen(dc, wxPen(bulletAttr.GetTextColour()));
8220         wxCheckSetBrush(dc, wxBrush(bulletAttr.GetTextColour()));
8221     }
8222     else
8223     {
8224         wxCheckSetPen(dc, *wxBLACK_PEN);
8225         wxCheckSetBrush(dc, *wxBLACK_BRUSH);
8226     }
8227
8228     wxFont font;
8229     if (bulletAttr.HasFont())
8230     {
8231         font = paragraph->GetBuffer()->GetFontTable().FindFont(bulletAttr);
8232     }
8233     else
8234         font = (*wxNORMAL_FONT);
8235
8236     wxCheckSetFont(dc, font);
8237
8238     int charHeight = dc.GetCharHeight();
8239
8240     int bulletWidth = (int) (((float) charHeight) * wxRichTextBuffer::GetBulletProportion());
8241     int bulletHeight = bulletWidth;
8242
8243     int x = rect.x;
8244
8245     // Calculate the top position of the character (as opposed to the whole line height)
8246     int y = rect.y + (rect.height - charHeight);
8247
8248     // Calculate where the bullet should be positioned
8249     y = y + (charHeight+1)/2 - (bulletHeight+1)/2;
8250
8251     // The margin between a bullet and text.
8252     int margin = paragraph->ConvertTenthsMMToPixels(dc, wxRichTextBuffer::GetBulletRightMargin());
8253
8254     if (bulletAttr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_RIGHT)
8255         x = rect.x + rect.width - bulletWidth - margin;
8256     else if (bulletAttr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_CENTRE)
8257         x = x + (rect.width)/2 - bulletWidth/2;
8258
8259     if (bulletAttr.GetBulletName() == wxT("standard/square"))
8260     {
8261         dc.DrawRectangle(x, y, bulletWidth, bulletHeight);
8262     }
8263     else if (bulletAttr.GetBulletName() == wxT("standard/diamond"))
8264     {
8265         wxPoint pts[5];
8266         pts[0].x = x;                   pts[0].y = y + bulletHeight/2;
8267         pts[1].x = x + bulletWidth/2;   pts[1].y = y;
8268         pts[2].x = x + bulletWidth;     pts[2].y = y + bulletHeight/2;
8269         pts[3].x = x + bulletWidth/2;   pts[3].y = y + bulletHeight;
8270
8271         dc.DrawPolygon(4, pts);
8272     }
8273     else if (bulletAttr.GetBulletName() == wxT("standard/triangle"))
8274     {
8275         wxPoint pts[3];
8276         pts[0].x = x;                   pts[0].y = y;
8277         pts[1].x = x + bulletWidth;     pts[1].y = y + bulletHeight/2;
8278         pts[2].x = x;                   pts[2].y = y + bulletHeight;
8279
8280         dc.DrawPolygon(3, pts);
8281     }
8282     else if (bulletAttr.GetBulletName() == wxT("standard/circle-outline"))
8283     {
8284         wxCheckSetBrush(dc, *wxTRANSPARENT_BRUSH);
8285         dc.DrawEllipse(x, y, bulletWidth, bulletHeight);
8286     }
8287     else // "standard/circle", and catch-all
8288     {
8289         dc.DrawEllipse(x, y, bulletWidth, bulletHeight);
8290     }
8291
8292     return true;
8293 }
8294
8295 bool wxRichTextStdRenderer::DrawTextBullet(wxRichTextParagraph* paragraph, wxDC& dc, const wxRichTextAttr& attr, const wxRect& rect, const wxString& text)
8296 {
8297     if (!text.empty())
8298     {
8299         wxFont font;
8300         if ((attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_SYMBOL) && !attr.GetBulletFont().IsEmpty() && attr.HasFont())
8301         {
8302             wxRichTextAttr fontAttr;
8303             if (attr.HasFontPixelSize())
8304                 fontAttr.SetFontPixelSize(attr.GetFontSize());
8305             else
8306                 fontAttr.SetFontPointSize(attr.GetFontSize());
8307             fontAttr.SetFontStyle(attr.GetFontStyle());
8308             fontAttr.SetFontWeight(attr.GetFontWeight());
8309             fontAttr.SetFontUnderlined(attr.GetFontUnderlined());
8310             fontAttr.SetFontFaceName(attr.GetBulletFont());
8311             font = paragraph->GetBuffer()->GetFontTable().FindFont(fontAttr);
8312         }
8313         else if (attr.HasFont())
8314             font = paragraph->GetBuffer()->GetFontTable().FindFont(attr);
8315         else
8316             font = (*wxNORMAL_FONT);
8317
8318         wxCheckSetFont(dc, font);
8319
8320         if (attr.GetTextColour().IsOk())
8321             dc.SetTextForeground(attr.GetTextColour());
8322
8323         dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
8324
8325         int charHeight = dc.GetCharHeight();
8326         wxCoord tw, th;
8327         dc.GetTextExtent(text, & tw, & th);
8328
8329         int x = rect.x;
8330
8331         // Calculate the top position of the character (as opposed to the whole line height)
8332         int y = rect.y + (rect.height - charHeight);
8333
8334         // The margin between a bullet and text.
8335         int margin = paragraph->ConvertTenthsMMToPixels(dc, wxRichTextBuffer::GetBulletRightMargin());
8336
8337         if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_RIGHT)
8338             x = (rect.x + rect.width) - tw - margin;
8339         else if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_CENTRE)
8340             x = x + (rect.width)/2 - tw/2;
8341
8342         dc.DrawText(text, x, y);
8343
8344         return true;
8345     }
8346     else
8347         return false;
8348 }
8349
8350 bool wxRichTextStdRenderer::DrawBitmapBullet(wxRichTextParagraph* WXUNUSED(paragraph), wxDC& WXUNUSED(dc), const wxRichTextAttr& WXUNUSED(attr), const wxRect& WXUNUSED(rect))
8351 {
8352     // Currently unimplemented. The intention is to store bitmaps by name in a media store associated
8353     // with the buffer. The store will allow retrieval from memory, disk or other means.
8354     return false;
8355 }
8356
8357 /// Enumerate the standard bullet names currently supported
8358 bool wxRichTextStdRenderer::EnumerateStandardBulletNames(wxArrayString& bulletNames)
8359 {
8360     bulletNames.Add(wxTRANSLATE("standard/circle"));
8361     bulletNames.Add(wxTRANSLATE("standard/circle-outline"));
8362     bulletNames.Add(wxTRANSLATE("standard/square"));
8363     bulletNames.Add(wxTRANSLATE("standard/diamond"));
8364     bulletNames.Add(wxTRANSLATE("standard/triangle"));
8365
8366     return true;
8367 }
8368
8369 /*!
8370  * wxRichTextBox
8371  */
8372
8373 IMPLEMENT_DYNAMIC_CLASS(wxRichTextBox, wxRichTextParagraphLayoutBox)
8374
8375 wxRichTextBox::wxRichTextBox(wxRichTextObject* parent):
8376     wxRichTextParagraphLayoutBox(parent)
8377 {
8378 }
8379
8380 /// Draw the item
8381 bool wxRichTextBox::Draw(wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& range, const wxRichTextSelection& selection, const wxRect& rect, int descent, int style)
8382 {
8383     if (!IsShown())
8384         return true;
8385
8386     // TODO: if the active object in the control, draw an indication.
8387     // We need to add the concept of active object, and not just focus object,
8388     // so we can apply commands (properties, delete, ...) to objects such as text boxes and images.
8389     // Ultimately we would like to be able to interactively resize an active object
8390     // using drag handles.
8391     return wxRichTextParagraphLayoutBox::Draw(dc, context, range, selection, rect, descent, style);
8392 }
8393
8394 /// Copy
8395 void wxRichTextBox::Copy(const wxRichTextBox& obj)
8396 {
8397     wxRichTextParagraphLayoutBox::Copy(obj);
8398 }
8399
8400 // Edit properties via a GUI
8401 bool wxRichTextBox::EditProperties(wxWindow* parent, wxRichTextBuffer* buffer)
8402 {
8403     wxRichTextObjectPropertiesDialog boxDlg(this, wxGetTopLevelParent(parent), wxID_ANY, _("Box Properties"));
8404     boxDlg.SetAttributes(GetAttributes());
8405
8406     if (boxDlg.ShowModal() == wxID_OK)
8407     {
8408         // By passing wxRICHTEXT_SETSTYLE_RESET, indeterminate attributes set by the user will be set as
8409         // indeterminate in the object.
8410         boxDlg.ApplyStyle(buffer->GetRichTextCtrl(), wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_RESET);
8411         return true;
8412     }
8413     else
8414         return false;
8415 }
8416
8417 /*!
8418  * wxRichTextField
8419  */
8420
8421 IMPLEMENT_DYNAMIC_CLASS(wxRichTextField, wxRichTextParagraphLayoutBox)
8422
8423 wxRichTextField::wxRichTextField(const wxString& fieldType, wxRichTextObject* parent):
8424     wxRichTextParagraphLayoutBox(parent)
8425 {
8426     SetFieldType(fieldType);
8427 }
8428
8429 /// Draw the item
8430 bool wxRichTextField::Draw(wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& range, const wxRichTextSelection& selection, const wxRect& rect, int descent, int style)
8431 {
8432     if (!IsShown())
8433         return true;
8434
8435     wxRichTextFieldType* fieldType = wxRichTextBuffer::FindFieldType(GetFieldType());
8436     if (fieldType && fieldType->Draw(this, dc, context, range, selection, rect, descent, style))
8437         return true;
8438
8439     // Fallback; but don't draw guidelines.
8440     style &= ~wxRICHTEXT_DRAW_GUIDELINES;
8441     return wxRichTextParagraphLayoutBox::Draw(dc, context, range, selection, rect, descent, style);
8442 }
8443
8444 bool wxRichTextField::Layout(wxDC& dc, wxRichTextDrawingContext& context, const wxRect& rect, const wxRect& parentRect, int style)
8445 {
8446     wxRichTextFieldType* fieldType = wxRichTextBuffer::FindFieldType(GetFieldType());
8447     if (fieldType && fieldType->Layout(this, dc, context, rect, parentRect, style))
8448         return true;
8449
8450     // Fallback
8451     return wxRichTextParagraphLayoutBox::Layout(dc, context, rect, parentRect, style);
8452 }
8453
8454 bool wxRichTextField::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, wxRichTextDrawingContext& context, int flags, wxPoint position, wxArrayInt* partialExtents) const
8455 {
8456     wxRichTextFieldType* fieldType = wxRichTextBuffer::FindFieldType(GetFieldType());
8457     if (fieldType)
8458         return fieldType->GetRangeSize((wxRichTextField*) this, range, size, descent, dc, context, flags, position, partialExtents);
8459
8460     return wxRichTextParagraphLayoutBox::GetRangeSize(range, size, descent, dc, context, flags, position, partialExtents);
8461 }
8462
8463 /// Calculate range
8464 void wxRichTextField::CalculateRange(long start, long& end)
8465 {
8466     if (IsTopLevel())
8467         wxRichTextParagraphLayoutBox::CalculateRange(start, end);
8468     else
8469         wxRichTextObject::CalculateRange(start, end);
8470 }
8471
8472 /// Copy
8473 void wxRichTextField::Copy(const wxRichTextField& obj)
8474 {
8475     wxRichTextParagraphLayoutBox::Copy(obj);
8476
8477     UpdateField(GetBuffer());
8478 }
8479
8480 // Edit properties via a GUI
8481 bool wxRichTextField::EditProperties(wxWindow* parent, wxRichTextBuffer* buffer)
8482 {
8483     wxRichTextFieldType* fieldType = wxRichTextBuffer::FindFieldType(GetFieldType());
8484     if (fieldType)
8485         return fieldType->EditProperties(this, parent, buffer);
8486
8487     return false;
8488 }
8489
8490 bool wxRichTextField::CanEditProperties() const
8491 {
8492     wxRichTextFieldType* fieldType = wxRichTextBuffer::FindFieldType(GetFieldType());
8493     if (fieldType)
8494         return fieldType->CanEditProperties((wxRichTextField*) this);
8495
8496     return false;
8497 }
8498
8499 wxString wxRichTextField::GetPropertiesMenuLabel() const
8500 {
8501     wxRichTextFieldType* fieldType = wxRichTextBuffer::FindFieldType(GetFieldType());
8502     if (fieldType)
8503         return fieldType->GetPropertiesMenuLabel((wxRichTextField*) this);
8504
8505     return wxEmptyString;
8506 }
8507
8508 bool wxRichTextField::UpdateField(wxRichTextBuffer* buffer)
8509 {
8510     wxRichTextFieldType* fieldType = wxRichTextBuffer::FindFieldType(GetFieldType());
8511     if (fieldType)
8512         return fieldType->UpdateField(buffer, (wxRichTextField*) this);
8513
8514     return false;
8515 }
8516
8517 bool wxRichTextField::IsTopLevel() const
8518 {
8519     wxRichTextFieldType* fieldType = wxRichTextBuffer::FindFieldType(GetFieldType());
8520     if (fieldType)
8521         return fieldType->IsTopLevel((wxRichTextField*) this);
8522
8523     return true;
8524 }
8525
8526 IMPLEMENT_CLASS(wxRichTextFieldType, wxObject)
8527
8528 IMPLEMENT_CLASS(wxRichTextFieldTypeStandard, wxRichTextFieldType)
8529
8530 wxRichTextFieldTypeStandard::wxRichTextFieldTypeStandard(const wxString& name, const wxString& label, int displayStyle)
8531 {
8532     Init();
8533
8534     SetName(name);
8535     SetLabel(label);
8536     SetDisplayStyle(displayStyle);
8537 }
8538
8539 wxRichTextFieldTypeStandard::wxRichTextFieldTypeStandard(const wxString& name, const wxBitmap& bitmap, int displayStyle)
8540 {
8541     Init();
8542
8543     SetName(name);
8544     SetBitmap(bitmap);
8545     SetDisplayStyle(displayStyle);
8546 }
8547
8548 void wxRichTextFieldTypeStandard::Init()
8549 {
8550     m_displayStyle = wxRICHTEXT_FIELD_STYLE_RECTANGLE;
8551     m_font = wxFont(6, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
8552     m_textColour = *wxWHITE;
8553     m_borderColour = *wxBLACK;
8554     m_backgroundColour = *wxBLACK;
8555     m_verticalPadding = 1;
8556     m_horizontalPadding = 3;
8557     m_horizontalMargin = 2;
8558     m_verticalMargin = 0;
8559 }
8560
8561 void wxRichTextFieldTypeStandard::Copy(const wxRichTextFieldTypeStandard& field)
8562 {
8563     wxRichTextFieldType::Copy(field);
8564
8565     m_label = field.m_label;
8566     m_displayStyle = field.m_displayStyle;
8567     m_font = field.m_font;
8568     m_textColour = field.m_textColour;
8569     m_borderColour = field.m_borderColour;
8570     m_backgroundColour = field.m_backgroundColour;
8571     m_verticalPadding = field.m_verticalPadding;
8572     m_horizontalPadding = field.m_horizontalPadding;
8573     m_horizontalMargin = field.m_horizontalMargin;
8574     m_bitmap = field.m_bitmap;
8575 }
8576
8577 bool wxRichTextFieldTypeStandard::Draw(wxRichTextField* obj, wxDC& dc, wxRichTextDrawingContext& WXUNUSED(context), const wxRichTextRange& WXUNUSED(range), const wxRichTextSelection& selection, const wxRect& rect, int descent, int WXUNUSED(style))
8578 {
8579     if (m_displayStyle == wxRICHTEXT_FIELD_STYLE_COMPOSITE)
8580         return false; // USe default composite drawing
8581     else // if (m_displayStyle == wxRICHTEXT_FIELD_STYLE_RECTANGLE || m_displayStyle == wxRICHTEXT_FIELD_STYLE_NOBORDER)
8582     {
8583         int borderSize = 1;
8584
8585         wxPen borderPen(m_borderColour, 1, wxSOLID);
8586         wxBrush backgroundBrush(m_backgroundColour);
8587         wxColour textColour(m_textColour);
8588
8589         if (selection.WithinSelection(obj->GetRange().GetStart(), obj))
8590         {
8591             wxColour highlightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT));
8592             wxColour highlightTextColour(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT));
8593
8594             borderPen = wxPen(highlightTextColour, 1, wxSOLID);
8595             backgroundBrush = wxBrush(highlightColour);
8596
8597             wxCheckSetBrush(dc, backgroundBrush);
8598             wxCheckSetPen(dc, wxPen(highlightColour, 1, wxSOLID));
8599             dc.DrawRectangle(rect);
8600         }
8601
8602         if (m_displayStyle != wxRICHTEXT_FIELD_STYLE_NO_BORDER)
8603             borderSize = 0;
8604
8605         // objectRect is the area where the content is drawn, after margins around it have been taken into account
8606         wxRect objectRect = wxRect(wxPoint(rect.x + m_horizontalMargin, rect.y + wxMax(0, rect.height - descent - obj->GetCachedSize().y)),
8607             wxSize(obj->GetCachedSize().x - 2*m_horizontalMargin - borderSize, obj->GetCachedSize().y));
8608
8609         // clientArea is where the text is actually written
8610         wxRect clientArea = objectRect;
8611
8612         if (m_displayStyle == wxRICHTEXT_FIELD_STYLE_RECTANGLE)
8613         {
8614             dc.SetPen(borderPen);
8615             dc.SetBrush(backgroundBrush);
8616             dc.DrawRoundedRectangle(objectRect, 4.0);
8617         }
8618         else if (m_displayStyle == wxRICHTEXT_FIELD_STYLE_START_TAG)
8619         {
8620             int arrowLength = objectRect.height/2;
8621             clientArea.width -= (arrowLength - m_horizontalPadding);
8622
8623             wxPoint pts[5];
8624             pts[0].x = objectRect.x; pts[0].y = objectRect.y;
8625             pts[1].x = objectRect.x + objectRect.width - arrowLength; pts[1].y = objectRect.y;
8626             pts[2].x = objectRect.x + objectRect.width; pts[2].y = objectRect.y + (objectRect.height/2);
8627             pts[3].x = objectRect.x + objectRect.width - arrowLength; pts[3].y = objectRect.y + objectRect.height;
8628             pts[4].x = objectRect.x; pts[4].y = objectRect.y + objectRect.height;
8629             dc.SetPen(borderPen);
8630             dc.SetBrush(backgroundBrush);
8631             dc.DrawPolygon(5, pts);
8632         }
8633         else if (m_displayStyle == wxRICHTEXT_FIELD_STYLE_END_TAG)
8634         {
8635             int arrowLength = objectRect.height/2;
8636             clientArea.width -= (arrowLength - m_horizontalPadding);
8637             clientArea.x += (arrowLength - m_horizontalPadding);
8638
8639             wxPoint pts[5];
8640             pts[0].x = objectRect.x + objectRect.width; pts[0].y = objectRect.y;
8641             pts[1].x = objectRect.x + arrowLength; pts[1].y = objectRect.y;
8642             pts[2].x = objectRect.x; pts[2].y = objectRect.y + (objectRect.height/2);
8643             pts[3].x = objectRect.x + arrowLength; pts[3].y = objectRect.y + objectRect.height;
8644             pts[4].x = objectRect.x + objectRect.width; pts[4].y = objectRect.y + objectRect.height;
8645             dc.SetPen(borderPen);
8646             dc.SetBrush(backgroundBrush);
8647             dc.DrawPolygon(5, pts);
8648         }
8649
8650         if (m_bitmap.IsOk())
8651         {
8652             int x = clientArea.x + (clientArea.width - m_bitmap.GetWidth())/2;
8653             int y = clientArea.y + m_verticalPadding;
8654             dc.DrawBitmap(m_bitmap, x, y, true);
8655
8656             if (selection.WithinSelection(obj->GetRange().GetStart(), obj))
8657             {
8658                 wxCheckSetBrush(dc, *wxBLACK_BRUSH);
8659                 wxCheckSetPen(dc, *wxBLACK_PEN);
8660                 dc.SetLogicalFunction(wxINVERT);
8661                 dc.DrawRectangle(wxRect(x, y, m_bitmap.GetWidth(), m_bitmap.GetHeight()));
8662                 dc.SetLogicalFunction(wxCOPY);
8663             }
8664         }
8665         else
8666         {
8667             wxString label(m_label);
8668             if (label.IsEmpty())
8669                 label = wxT("??");
8670             int w, h, maxDescent;
8671             dc.SetFont(m_font);
8672             dc.GetTextExtent(m_label, & w, &h, & maxDescent);
8673             dc.SetTextForeground(textColour);
8674
8675             int x = clientArea.x + (clientArea.width - w)/2;
8676             int y = clientArea.y + (clientArea.height - (h - maxDescent))/2;
8677             dc.DrawText(m_label, x, y);
8678         }
8679     }
8680
8681     return true;
8682 }
8683
8684 bool wxRichTextFieldTypeStandard::Layout(wxRichTextField* obj, wxDC& dc, wxRichTextDrawingContext& context, const wxRect& WXUNUSED(rect), const wxRect& WXUNUSED(parentRect), int style)
8685 {
8686     if (m_displayStyle == wxRICHTEXT_FIELD_STYLE_COMPOSITE)
8687         return false; // USe default composite layout
8688
8689     wxSize size = GetSize(obj, dc, context, style);
8690     obj->SetCachedSize(size);
8691     obj->SetMinSize(size);
8692     obj->SetMaxSize(size);
8693     return true;
8694 }
8695
8696 bool wxRichTextFieldTypeStandard::GetRangeSize(wxRichTextField* obj, const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, wxRichTextDrawingContext& context, int flags, wxPoint position, wxArrayInt* partialExtents) const
8697 {
8698     if (IsTopLevel(obj))
8699         return obj->wxRichTextParagraphLayoutBox::GetRangeSize(range, size, descent, dc, context, flags, position);
8700     else
8701     {
8702         wxSize sz = GetSize(obj, dc, context, 0);
8703         if (partialExtents)
8704         {
8705             int lastSize;
8706             if (partialExtents->GetCount() > 0)
8707                 lastSize = (*partialExtents)[partialExtents->GetCount()-1];
8708             else
8709                 lastSize = 0;
8710             partialExtents->Add(lastSize + sz.x);
8711         }
8712         size = sz;
8713        return true;
8714     }
8715 }
8716
8717 wxSize wxRichTextFieldTypeStandard::GetSize(wxRichTextField* WXUNUSED(obj), wxDC& dc, wxRichTextDrawingContext& WXUNUSED(context), int WXUNUSED(style)) const
8718 {
8719     int borderSize = 1;
8720     int w = 0, h = 0, maxDescent = 0;
8721
8722     wxSize sz;
8723     if (m_bitmap.IsOk())
8724     {
8725         w = m_bitmap.GetWidth();
8726         h = m_bitmap.GetHeight();
8727
8728         sz = wxSize(w + m_horizontalMargin*2, h + m_verticalMargin*2);
8729     }
8730     else
8731     {
8732         wxString label(m_label);
8733         if (label.IsEmpty())
8734             label = wxT("??");
8735         dc.SetFont(m_font);
8736         dc.GetTextExtent(label, & w, &h, & maxDescent);
8737
8738         sz = wxSize(w + m_horizontalPadding*2 + m_horizontalMargin*2, h + m_verticalPadding *2 + m_verticalMargin*2);
8739     }
8740
8741     if (m_displayStyle != wxRICHTEXT_FIELD_STYLE_NO_BORDER)
8742     {
8743         sz.x += borderSize*2;
8744         sz.y += borderSize*2;
8745     }
8746
8747     if (m_displayStyle == wxRICHTEXT_FIELD_STYLE_START_TAG || m_displayStyle == wxRICHTEXT_FIELD_STYLE_END_TAG)
8748     {
8749         // Add space for the arrow
8750         sz.x += (sz.y/2 - m_horizontalPadding);
8751     }
8752
8753     return sz;
8754 }
8755
8756 IMPLEMENT_DYNAMIC_CLASS(wxRichTextCell, wxRichTextBox)
8757
8758 wxRichTextCell::wxRichTextCell(wxRichTextObject* parent):
8759     wxRichTextBox(parent)
8760 {
8761 }
8762
8763 /// Draw the item
8764 bool wxRichTextCell::Draw(wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& range, const wxRichTextSelection& selection, const wxRect& rect, int descent, int style)
8765 {
8766     return wxRichTextBox::Draw(dc, context, range, selection, rect, descent, style);
8767 }
8768
8769 /// Copy
8770 void wxRichTextCell::Copy(const wxRichTextCell& obj)
8771 {
8772     wxRichTextBox::Copy(obj);
8773 }
8774
8775 // Edit properties via a GUI
8776 bool wxRichTextCell::EditProperties(wxWindow* parent, wxRichTextBuffer* buffer)
8777 {
8778     // We need to gather common attributes for all selected cells.
8779
8780     wxRichTextTable* table = wxDynamicCast(GetParent(), wxRichTextTable);
8781     bool multipleCells = false;
8782     wxRichTextAttr attr;
8783
8784     if (table && buffer && buffer->GetRichTextCtrl() && buffer->GetRichTextCtrl()->GetSelection().IsValid() &&
8785         buffer->GetRichTextCtrl()->GetSelection().GetContainer() == GetParent())
8786     {
8787         wxRichTextAttr clashingAttr, absentAttr;
8788         const wxRichTextSelection& sel = buffer->GetRichTextCtrl()->GetSelection();
8789         size_t i;
8790         int selectedCellCount = 0;
8791         for (i = 0; i < sel.GetCount(); i++)
8792         {
8793             const wxRichTextRange& range = sel[i];
8794             wxRichTextCell* cell = table->GetCell(range.GetStart());
8795             if (cell)
8796             {
8797                 wxRichTextAttr cellStyle = cell->GetAttributes();
8798
8799                 CollectStyle(attr, cellStyle, clashingAttr, absentAttr);
8800
8801                 selectedCellCount ++;
8802             }
8803         }
8804         multipleCells = selectedCellCount > 1;
8805     }
8806     else
8807     {
8808         attr = GetAttributes();
8809     }
8810
8811     wxString caption;
8812     if (multipleCells)
8813         caption = _("Multiple Cell Properties");
8814     else
8815         caption = _("Cell Properties");
8816
8817     wxRichTextObjectPropertiesDialog cellDlg(this, wxGetTopLevelParent(parent), wxID_ANY, caption);
8818     cellDlg.SetAttributes(attr);
8819
8820     wxRichTextSizePage* sizePage = wxDynamicCast(cellDlg.FindPage(wxCLASSINFO(wxRichTextSizePage)), wxRichTextSizePage);
8821     if (sizePage)
8822     {
8823         // We don't want position and floating controls for a cell.
8824         sizePage->ShowPositionControls(false);
8825         sizePage->ShowFloatingControls(false);
8826     }
8827
8828     if (cellDlg.ShowModal() == wxID_OK)
8829     {
8830         if (multipleCells)
8831         {
8832             const wxRichTextSelection& sel = buffer->GetRichTextCtrl()->GetSelection();
8833             // Apply the style; we interpret indeterminate attributes as 'don't touch this attribute'
8834             // since it may represent clashing attributes across multiple objects.
8835             table->SetCellStyle(sel, attr);
8836         }
8837         else
8838             // For a single object, indeterminate attributes set by the user should be reflected in the
8839             // actual object style, so pass the wxRICHTEXT_SETSTYLE_RESET flag to assign
8840             // the style directly instead of applying (which ignores indeterminate attributes,
8841             // leaving them as they were).
8842             cellDlg.ApplyStyle(buffer->GetRichTextCtrl(), wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_RESET);
8843         return true;
8844     }
8845     else
8846         return false;
8847 }
8848
8849 WX_DEFINE_OBJARRAY(wxRichTextObjectPtrArrayArray)
8850
8851 IMPLEMENT_DYNAMIC_CLASS(wxRichTextTable, wxRichTextBox)
8852
8853 wxRichTextTable::wxRichTextTable(wxRichTextObject* parent): wxRichTextBox(parent)
8854 {
8855     m_rowCount = 0;
8856     m_colCount = 0;
8857 }
8858
8859 // Draws the object.
8860 bool wxRichTextTable::Draw(wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& range, const wxRichTextSelection& selection, const wxRect& rect, int descent, int style)
8861 {
8862     return wxRichTextBox::Draw(dc, context, range, selection, rect, descent, style);
8863 }
8864
8865 WX_DECLARE_OBJARRAY(wxRect, wxRichTextRectArray);
8866 WX_DEFINE_OBJARRAY(wxRichTextRectArray);
8867
8868 // Lays the object out. rect is the space available for layout. Often it will
8869 // be the specified overall space for this object, if trying to constrain
8870 // layout to a particular size, or it could be the total space available in the
8871 // parent. rect is the overall size, so we must subtract margins and padding.
8872 // to get the actual available space.
8873 bool wxRichTextTable::Layout(wxDC& dc, wxRichTextDrawingContext& context, const wxRect& rect, const wxRect& WXUNUSED(parentRect), int style)
8874 {
8875     SetPosition(rect.GetPosition());
8876
8877     // TODO: the meaty bit. Calculate sizes of all cells and rows. Try to use
8878     // minimum size if within alloted size, then divide up remaining size
8879     // between rows/cols.
8880
8881     double scale = 1.0;
8882     wxRichTextBuffer* buffer = GetBuffer();
8883     if (buffer) scale = buffer->GetScale();
8884
8885     wxRect availableSpace = GetAvailableContentArea(dc, context, rect);
8886     wxTextAttrDimensionConverter converter(dc, scale, availableSpace.GetSize());
8887
8888     wxRichTextAttr attr(GetAttributes());
8889     context.ApplyVirtualAttributes(attr, this);
8890
8891     // If we have no fixed table size, and assuming we're not pushed for
8892     // space, then we don't have to try to stretch the table to fit the contents.
8893     bool stretchToFitTableWidth = false;
8894
8895     int tableWidth = rect.width;
8896     if (attr.GetTextBoxAttr().GetWidth().IsValid())
8897     {
8898         tableWidth = converter.GetPixels(attr.GetTextBoxAttr().GetWidth());
8899
8900         // Fixed table width, so we do want to stretch columns out if necessary.
8901         stretchToFitTableWidth = true;
8902
8903         // Shouldn't be able to exceed the size passed to this function
8904         tableWidth = wxMin(rect.width, tableWidth);
8905     }
8906
8907     // Get internal padding
8908     int paddingLeft = 0, paddingTop = 0;
8909     if (attr.GetTextBoxAttr().GetPadding().GetLeft().IsValid())
8910         paddingLeft = converter.GetPixels(attr.GetTextBoxAttr().GetPadding().GetLeft());
8911     if (attr.GetTextBoxAttr().GetPadding().GetTop().IsValid())
8912         paddingTop = converter.GetPixels(attr.GetTextBoxAttr().GetPadding().GetTop());
8913
8914     // Assume that left and top padding are also used for inter-cell padding.
8915     int paddingX = paddingLeft;
8916     int paddingY = paddingTop;
8917
8918     int totalLeftMargin = 0, totalRightMargin = 0, totalTopMargin = 0, totalBottomMargin = 0;
8919     GetTotalMargin(dc, buffer, attr, totalLeftMargin, totalRightMargin, totalTopMargin, totalBottomMargin);
8920
8921     // Internal table width - the area for content
8922     int internalTableWidth = tableWidth - totalLeftMargin - totalRightMargin;
8923
8924     int rowCount = m_cells.GetCount();
8925     if (m_colCount == 0 || rowCount == 0)
8926     {
8927         wxRect overallRect(rect.x, rect.y, totalLeftMargin + totalRightMargin, totalTopMargin + totalBottomMargin);
8928         SetCachedSize(overallRect.GetSize());
8929
8930         // Zero content size
8931         SetMinSize(overallRect.GetSize());
8932         SetMaxSize(GetMinSize());
8933         return true;
8934     }
8935
8936     // The final calculated widths
8937     wxArrayInt colWidths;
8938     colWidths.Add(0, m_colCount);
8939
8940     wxArrayInt absoluteColWidths;
8941     absoluteColWidths.Add(0, m_colCount);
8942
8943     wxArrayInt percentageColWidths;
8944     percentageColWidths.Add(0, m_colCount);
8945     // wxArrayInt percentageColWidthsSpanning(m_colCount);
8946     // These are only relevant when the first column contains spanning information.
8947     // wxArrayInt columnSpans(m_colCount); // Each contains 1 for non-spanning cell, > 1 for spanning cell.
8948     wxArrayInt maxColWidths;
8949     maxColWidths.Add(0, m_colCount);
8950     wxArrayInt minColWidths;
8951     minColWidths.Add(0, m_colCount);
8952
8953     wxSize tableSize(tableWidth, 0);
8954
8955     int i, j, k;
8956
8957     for (i = 0; i < m_colCount; i++)
8958     {
8959         absoluteColWidths[i] = 0;
8960         // absoluteColWidthsSpanning[i] = 0;
8961         percentageColWidths[i] = -1;
8962         // percentageColWidthsSpanning[i] = -1;
8963         colWidths[i] = 0;
8964         maxColWidths[i] = 0;
8965         minColWidths[i] = 0;
8966         // columnSpans[i] = 1;
8967     }
8968
8969     // (0) Determine which cells are visible according to spans
8970     //   1  2   3  4   5
8971     //  __________________
8972     // |  |   |      |    | 1
8973     // |------|      |----|
8974     // |------|      |    | 2
8975     // |------|      |    | 3
8976     // |------------------|
8977     // |__________________| 4
8978
8979     // To calculate cell visibility:
8980     // First find all spanning cells. Build an array of span records with start x, y and end x, y.
8981     // Then for each cell, test whether we're within one of those cells, and unless we're at the start of
8982     // that cell, hide the cell.
8983
8984     // We can also use this array to match the size of spanning cells to the grid. Or just do
8985     // this when we iterate through all cells.
8986
8987     // 0.1: add spanning cells to an array
8988     wxRichTextRectArray rectArray;
8989     for (j = 0; j < m_rowCount; j++)
8990     {
8991         for (i = 0; i < m_colCount; i++)
8992         {
8993             wxRichTextBox* cell = GetCell(j, i);
8994             int colSpan = 1, rowSpan = 1;
8995             if (cell->GetProperties().HasProperty(wxT("colspan")))
8996                 colSpan = cell->GetProperties().GetPropertyLong(wxT("colspan"));
8997             if (cell->GetProperties().HasProperty(wxT("rowspan")))
8998                 rowSpan = cell->GetProperties().GetPropertyLong(wxT("rowspan"));
8999             if (colSpan > 1 || rowSpan > 1)
9000             {
9001                 rectArray.Add(wxRect(i, j, colSpan, rowSpan));
9002             }
9003         }
9004     }
9005     // 0.2: find which cells are subsumed by a spanning cell
9006     for (j = 0; j < m_rowCount; j++)
9007     {
9008         for (i = 0; i < m_colCount; i++)
9009         {
9010             wxRichTextBox* cell = GetCell(j, i);
9011             if (rectArray.GetCount() == 0)
9012             {
9013                 cell->Show(true);
9014             }
9015             else
9016             {
9017                 int colSpan = 1, rowSpan = 1;
9018                 if (cell->GetProperties().HasProperty(wxT("colspan")))
9019                     colSpan = cell->GetProperties().GetPropertyLong(wxT("colspan"));
9020                 if (cell->GetProperties().HasProperty(wxT("rowspan")))
9021                     rowSpan = cell->GetProperties().GetPropertyLong(wxT("rowspan"));
9022                 if (colSpan > 1 || rowSpan > 1)
9023                 {
9024                     // Assume all spanning cells are shown
9025                     cell->Show(true);
9026                 }
9027                 else
9028                 {
9029                     bool shown = true;
9030                     for (k = 0; k < (int) rectArray.GetCount(); k++)
9031                     {
9032                         if (rectArray[k].Contains(wxPoint(i, j)))
9033                         {
9034                             shown = false;
9035                             break;
9036                         }
9037                     }
9038                     cell->Show(shown);
9039                 }
9040             }
9041         }
9042     }
9043
9044     // TODO: find the first spanned cell in each row that spans the most columns and doesn't
9045     // overlap with a spanned cell starting at a previous column position.
9046     // This means we need to keep an array of rects so we can check. However
9047     // it does also mean that some spans simply may not be taken into account
9048     // where there are different spans happening on different rows. In these cases,
9049     // they will simply be as wide as their constituent columns.
9050
9051     // (1) Do an initial layout for all cells to get minimum and maximum size, and get
9052     // the absolute or percentage width of each column.
9053
9054     for (j = 0; j < m_rowCount; j++)
9055     {
9056         // First get the overall margins so we can calculate percentage widths based on
9057         // the available content space for all cells on the row
9058
9059         int overallRowContentMargin = 0;
9060         int visibleCellCount = 0;
9061
9062         for (i = 0; i < m_colCount; i++)
9063         {
9064             wxRichTextBox* cell = GetCell(j, i);
9065             if (cell->IsShown())
9066             {
9067                 int cellTotalLeftMargin = 0, cellTotalRightMargin = 0, cellTotalTopMargin = 0, cellTotalBottomMargin = 0;
9068                 GetTotalMargin(dc, buffer, cell->GetAttributes(), cellTotalLeftMargin, cellTotalRightMargin, cellTotalTopMargin, cellTotalBottomMargin);
9069
9070                 overallRowContentMargin += (cellTotalLeftMargin + cellTotalRightMargin);
9071                 visibleCellCount ++;
9072             }
9073         }
9074
9075         // Add in inter-cell padding
9076         overallRowContentMargin += ((visibleCellCount-1) * paddingX);
9077
9078         int rowContentWidth = internalTableWidth - overallRowContentMargin;
9079         wxSize rowTableSize(rowContentWidth, 0);
9080         wxTextAttrDimensionConverter converter(dc, scale, rowTableSize);
9081
9082         for (i = 0; i < m_colCount; i++)
9083         {
9084             wxRichTextBox* cell = GetCell(j, i);
9085             if (cell->IsShown())
9086             {
9087                 int colSpan = 1;
9088                 if (cell->GetProperties().HasProperty(wxT("colspan")))
9089                     colSpan = cell->GetProperties().GetPropertyLong(wxT("colspan"));
9090
9091                 // Lay out cell to find min/max widths
9092                 cell->Invalidate(wxRICHTEXT_ALL);
9093                 cell->Layout(dc, context, availableSpace, availableSpace, style);
9094
9095                 if (colSpan == 1)
9096                 {
9097                     int absoluteCellWidth = -1;
9098                     int percentageCellWidth = -1;
9099
9100                     // I think we need to calculate percentages from the internal table size,
9101                     // minus the padding between cells which we'll need to calculate from the
9102                     // (number of VISIBLE cells - 1)*paddingX. Then percentages that add up to 100%
9103                     // will add up to 100%. In CSS, the width specifies the cell's content rect width,
9104                     // so if we want to conform to that we'll need to add in the overall cell margins.
9105                     // However, this will make it difficult to specify percentages that add up to
9106                     // 100% and still fit within the table width.
9107                     // Let's say two cells have 50% width. They have 10 pixels of overall margin each.
9108                     // The table content rect is 500 pixels and the inter-cell padding is 20 pixels.
9109                     // If we're using internal content size for the width, we would calculate the
9110                     // the overall cell width for n cells as:
9111                     // (500 - 20*(n-1) - overallCellMargin1 - overallCellMargin2 - ...) * percentage / 100
9112                     // + thisOverallCellMargin
9113                     // = 500 - 20 - 10 - 10) * 0.5 + 10 = 240 pixels overall cell width.
9114                     // Adding this back, we get 240 + 240 + 20 = 500 pixels.
9115
9116                     if (cell->GetAttributes().GetTextBoxAttr().GetWidth().IsValid())
9117                     {
9118                         int w = converter.GetPixels(cell->GetAttributes().GetTextBoxAttr().GetWidth());
9119                         if (cell->GetAttributes().GetTextBoxAttr().GetWidth().GetUnits() == wxTEXT_ATTR_UNITS_PERCENTAGE)
9120                         {
9121                             percentageCellWidth = w;
9122                         }
9123                         else
9124                         {
9125                             absoluteCellWidth = w;
9126                         }
9127                         // Override absolute width with minimum width if necessary
9128                         if (cell->GetMinSize().x > 0 && absoluteCellWidth !=1 && cell->GetMinSize().x > absoluteCellWidth)
9129                             absoluteCellWidth = cell->GetMinSize().x;
9130                     }
9131
9132                     if (absoluteCellWidth != -1)
9133                     {
9134                         if (absoluteCellWidth > absoluteColWidths[i])
9135                             absoluteColWidths[i] = absoluteCellWidth;
9136                     }
9137
9138                     if (percentageCellWidth != -1)
9139                     {
9140                         if (percentageCellWidth > percentageColWidths[i])
9141                             percentageColWidths[i] = percentageCellWidth;
9142                     }
9143
9144                     if (colSpan == 1 && cell->GetMinSize().x && cell->GetMinSize().x > minColWidths[i])
9145                         minColWidths[i] = cell->GetMinSize().x;
9146                     if (colSpan == 1 && cell->GetMaxSize().x && cell->GetMaxSize().x > maxColWidths[i])
9147                         maxColWidths[i] = cell->GetMaxSize().x;
9148                 }
9149             }
9150         }
9151     }
9152
9153     // (2) Allocate initial column widths from minimum widths, absolute values and proportions
9154     // TODO: simply merge this into (1).
9155     for (i = 0; i < m_colCount; i++)
9156     {
9157         if (absoluteColWidths[i] > 0)
9158         {
9159             colWidths[i] = absoluteColWidths[i];
9160         }
9161         else if (percentageColWidths[i] > 0)
9162         {
9163             colWidths[i] = percentageColWidths[i];
9164
9165             // This is rubbish - we calculated the absolute widths from percentages, so
9166             // we can't do it again here.
9167             //colWidths[i] = (int) (double(percentageColWidths[i]) * double(tableWidth) / 100.0 + 0.5);
9168         }
9169     }
9170
9171     // (3) Process absolute or proportional widths of spanning columns,
9172     // now that we know what our fixed column widths are going to be.
9173     // Spanned cells will try to adjust columns so the span will fit.
9174     // Even existing fixed column widths can be expanded if necessary.
9175     // Actually, currently fixed columns widths aren't adjusted; instead,
9176     // the algorithm favours earlier rows and adjusts unspecified column widths
9177     // the first time only. After that, we can't know whether the column has been
9178     // specified explicitly or not. (We could make a note if necessary.)
9179     for (j = 0; j < m_rowCount; j++)
9180     {
9181         // First get the overall margins so we can calculate percentage widths based on
9182         // the available content space for all cells on the row
9183
9184         int overallRowContentMargin = 0;
9185         int visibleCellCount = 0;
9186
9187         for (i = 0; i < m_colCount; i++)
9188         {
9189             wxRichTextBox* cell = GetCell(j, i);
9190             if (cell->IsShown())
9191             {
9192                 int cellTotalLeftMargin = 0, cellTotalRightMargin = 0, cellTotalTopMargin = 0, cellTotalBottomMargin = 0;
9193                 GetTotalMargin(dc, buffer, cell->GetAttributes(), cellTotalLeftMargin, cellTotalRightMargin, cellTotalTopMargin, cellTotalBottomMargin);
9194
9195                 overallRowContentMargin += (cellTotalLeftMargin + cellTotalRightMargin);
9196                 visibleCellCount ++;
9197             }
9198         }
9199
9200         // Add in inter-cell padding
9201         overallRowContentMargin += ((visibleCellCount-1) * paddingX);
9202
9203         int rowContentWidth = internalTableWidth - overallRowContentMargin;
9204         wxSize rowTableSize(rowContentWidth, 0);
9205         wxTextAttrDimensionConverter converter(dc, scale, rowTableSize);
9206
9207         for (i = 0; i < m_colCount; i++)
9208         {
9209             wxRichTextBox* cell = GetCell(j, i);
9210             if (cell->IsShown())
9211             {
9212                 int colSpan = 1;
9213                 if (cell->GetProperties().HasProperty(wxT("colspan")))
9214                     colSpan = cell->GetProperties().GetPropertyLong(wxT("colspan"));
9215
9216                 if (colSpan > 1)
9217                 {
9218                     int spans = wxMin(colSpan, m_colCount - i);
9219                     int cellWidth = 0;
9220                     if (spans > 0)
9221                     {
9222                         if (cell->GetAttributes().GetTextBoxAttr().GetWidth().IsValid())
9223                         {
9224                             cellWidth = converter.GetPixels(cell->GetAttributes().GetTextBoxAttr().GetWidth());
9225                             // Override absolute width with minimum width if necessary
9226                             if (cell->GetMinSize().x > 0 && cellWidth !=1 && cell->GetMinSize().x > cellWidth)
9227                                 cellWidth = cell->GetMinSize().x;
9228                         }
9229                         else
9230                         {
9231                             // Do we want to do this? It's the only chance we get to
9232                             // use the cell's min/max sizes, so we need to work out
9233                             // how we're going to balance the unspecified spanning cell
9234                             // width with the possibility more-constrained constituent cell widths.
9235                             // Say there's a tiny bitmap giving it a max width of 10 pixels. We
9236                             // don't want to constraint all the spanned columns to fit into this cell.
9237                             // OK, let's say that if any of the constituent columns don't fit,
9238                             // then we simply stop constraining the columns; instead, we'll just fit the spanning
9239                             // cells to the columns later.
9240                             cellWidth = cell->GetMinSize().x;
9241                             if (cell->GetMaxSize().x > cellWidth)
9242                                 cellWidth = cell->GetMaxSize().x;
9243                         }
9244
9245                         // Subtract the padding between cells
9246                         int spanningWidth = cellWidth;
9247                         spanningWidth -= paddingX * (spans-1);
9248
9249                         if (spanningWidth > 0)
9250                         {
9251                             // Now share the spanning width between columns within that span
9252                             // TODO: take into account min widths of columns within the span
9253                             int spanningWidthLeft = spanningWidth;
9254                             int stretchColCount = 0;
9255                             for (k = i; k < (i+spans); k++)
9256                             {
9257                                 if (colWidths[k] > 0) // absolute or proportional width has been specified
9258                                     spanningWidthLeft -= colWidths[k];
9259                                 else
9260                                     stretchColCount ++;
9261                             }
9262                             // Now divide what's left between the remaining columns
9263                             int colShare = 0;
9264                             if (stretchColCount > 0)
9265                                 colShare = spanningWidthLeft / stretchColCount;
9266                             int colShareRemainder = spanningWidthLeft - (colShare * stretchColCount);
9267
9268                             // If fixed-width columns are currently too big, then we'll later
9269                             // stretch the spanned cell to fit.
9270
9271                             if (spanningWidthLeft > 0)
9272                             {
9273                                 for (k = i; k < (i+spans); k++)
9274                                 {
9275                                     if (colWidths[k] <= 0) // absolute or proportional width has not been specified
9276                                     {
9277                                         int newWidth = colShare;
9278                                         if (k == (i+spans-1))
9279                                             newWidth += colShareRemainder; // ensure all pixels are filled
9280                                         colWidths[k] = newWidth;
9281                                     }
9282                                 }
9283                             }
9284                         }
9285                     }
9286                 }
9287             }
9288         }
9289     }
9290
9291     // (4) Next, share any remaining space out between columns that have not yet been calculated.
9292     // TODO: take into account min widths of columns within the span
9293     int tableWidthMinusPadding = internalTableWidth - (m_colCount-1)*paddingX;
9294     int widthLeft = tableWidthMinusPadding;
9295     int stretchColCount = 0;
9296     for (i = 0; i < m_colCount; i++)
9297     {
9298         // TODO: we need to take into account min widths.
9299         // Subtract min width from width left, then
9300         // add the colShare to the min width
9301         if (colWidths[i] > 0) // absolute or proportional width has been specified
9302             widthLeft -= colWidths[i];
9303         else
9304         {
9305             if (minColWidths[i] > 0)
9306                 widthLeft -= minColWidths[i];
9307
9308             stretchColCount ++;
9309         }
9310     }
9311
9312     // Now divide what's left between the remaining columns
9313     int colShare = 0;
9314     if (stretchColCount > 0)
9315         colShare = widthLeft / stretchColCount;
9316     int colShareRemainder = widthLeft - (colShare * stretchColCount);
9317
9318     // Check we don't have enough space, in which case shrink all columns, overriding
9319     // any absolute/proportional widths
9320     // TODO: actually we would like to divide up the shrinkage according to size.
9321     // How do we calculate the proportions that will achieve this?
9322     // Could first choose an arbitrary value for stretching cells, and then calculate
9323     // factors to multiply each width by.
9324     // TODO: want to record this fact and pass to an iteration that tries e.g. min widths
9325     if (widthLeft < 0 || (stretchToFitTableWidth && (stretchColCount == 0)))
9326     {
9327         colShare = tableWidthMinusPadding / m_colCount;
9328         colShareRemainder = tableWidthMinusPadding - (colShare * m_colCount);
9329         for (i = 0; i < m_colCount; i++)
9330         {
9331             colWidths[i] = 0;
9332             minColWidths[i] = 0;
9333         }
9334     }
9335
9336     // We have to adjust the columns if either we need to shrink the
9337     // table to fit the parent/table width, or we explicitly set the
9338     // table width and need to stretch out the table.
9339     if (widthLeft < 0 || stretchToFitTableWidth)
9340     {
9341         for (i = 0; i < m_colCount; i++)
9342         {
9343             if (colWidths[i] <= 0) // absolute or proportional width has not been specified
9344             {
9345                 if (minColWidths[i] > 0)
9346                     colWidths[i] = minColWidths[i] + colShare;
9347                 else
9348                     colWidths[i] = colShare;
9349                 if (i == (m_colCount-1))
9350                     colWidths[i] += colShareRemainder; // ensure all pixels are filled
9351             }
9352         }
9353     }
9354
9355     // TODO: if spanned cells have no specified or max width, make them the
9356     // as big as the columns they span. Do this for all spanned cells in all
9357     // rows, of course. Size any spanned cells left over at the end - even if they
9358     // have width > 0, make sure they're limited to the appropriate column edge.
9359
9360
9361 /*
9362     Sort out confusion between content width
9363     and overall width later. For now, assume we specify overall width.
9364
9365     So, now we've laid out the table to fit into the given space
9366     and have used specified widths and minimum widths.
9367
9368     Now we need to consider how we will try to take maximum width into account.
9369
9370 */
9371
9372     // (??) TODO: take max width into account
9373
9374     // (6) Lay out all cells again with the current values
9375
9376     int maxRight = 0;
9377     int y = availableSpace.y;
9378     for (j = 0; j < m_rowCount; j++)
9379     {
9380         int x = availableSpace.x; // TODO: take into account centering etc.
9381         int maxCellHeight = 0;
9382         int maxSpecifiedCellHeight = 0;
9383
9384         wxArrayInt actualWidths;
9385         actualWidths.Add(0, m_colCount);
9386
9387         wxTextAttrDimensionConverter converter(dc, scale);
9388         for (i = 0; i < m_colCount; i++)
9389         {
9390             wxRichTextCell* cell = GetCell(j, i);
9391             if (cell->IsShown())
9392             {
9393                 // Get max specified cell height
9394                 // Don't handle percentages for height
9395                 if (cell->GetAttributes().GetTextBoxAttr().GetHeight().IsValid() && cell->GetAttributes().GetTextBoxAttr().GetHeight().GetUnits() != wxTEXT_ATTR_UNITS_PERCENTAGE)
9396                 {
9397                     int h = converter.GetPixels(cell->GetAttributes().GetTextBoxAttr().GetHeight());
9398                     if (h > maxSpecifiedCellHeight)
9399                         maxSpecifiedCellHeight = h;
9400                 }
9401
9402                 if (colWidths[i] > 0) // absolute or proportional width has been specified
9403                 {
9404                     int colSpan = 1;
9405                     if (cell->GetProperties().HasProperty(wxT("colspan")))
9406                         colSpan = cell->GetProperties().GetPropertyLong(wxT("colspan"));
9407
9408                     wxRect availableCellSpace;
9409
9410                     // TODO: take into acount spans
9411                     if (colSpan > 1)
9412                     {
9413                         // Calculate the size of this spanning cell from its constituent columns
9414                         int xx = x;
9415                         int spans = wxMin(colSpan, m_colCount - i);
9416                         for (k = i; k < spans; k++)
9417                         {
9418                             if (k != i)
9419                                 xx += paddingX;
9420                             xx += colWidths[k];
9421                         }
9422                         availableCellSpace = wxRect(x, y, xx, -1);
9423                     }
9424                     else
9425                         availableCellSpace = wxRect(x, y, colWidths[i], -1);
9426
9427                     // Store actual width so we can force cell to be the appropriate width on the final loop
9428                     actualWidths[i] = availableCellSpace.GetWidth();
9429
9430                     // Lay out cell
9431                     cell->Invalidate(wxRICHTEXT_ALL);
9432                     cell->Layout(dc, context, availableCellSpace, availableSpace, style);
9433
9434                     // TODO: use GetCachedSize().x to compute 'natural' size
9435
9436                     x += (availableCellSpace.GetWidth() + paddingX);
9437                     if (cell->GetCachedSize().y > maxCellHeight)
9438                         maxCellHeight = cell->GetCachedSize().y;
9439                 }
9440             }
9441         }
9442
9443         maxCellHeight = wxMax(maxCellHeight, maxSpecifiedCellHeight);
9444
9445         for (i = 0; i < m_colCount; i++)
9446         {
9447             wxRichTextCell* cell = GetCell(j, i);
9448             if (cell->IsShown())
9449             {
9450                 wxRect availableCellSpace = wxRect(cell->GetPosition(), wxSize(actualWidths[i], maxCellHeight));
9451                 // Lay out cell with new height
9452                 cell->Invalidate(wxRICHTEXT_ALL);
9453                 cell->Layout(dc, context, availableCellSpace, availableSpace, style);
9454
9455                 // Make sure the cell size really is the appropriate size,
9456                 // not the calculated box size
9457                 cell->SetCachedSize(wxSize(actualWidths[i], maxCellHeight));
9458
9459                 maxRight = wxMax(maxRight, cell->GetPosition().x + cell->GetCachedSize().x);
9460             }
9461         }
9462
9463         y += maxCellHeight;
9464         if (j < (m_rowCount-1))
9465             y += paddingY;
9466     }
9467
9468     // We need to add back the margins etc.
9469     {
9470         wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
9471         contentRect = wxRect(wxPoint(0, 0), wxSize(maxRight - availableSpace.x, y - availableSpace.y));
9472         GetBoxRects(dc, GetBuffer(), attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
9473         SetCachedSize(marginRect.GetSize());
9474     }
9475
9476     // TODO: calculate max size
9477     {
9478         SetMaxSize(GetCachedSize());
9479     }
9480
9481     // TODO: calculate min size
9482     {
9483         SetMinSize(GetCachedSize());
9484     }
9485
9486     // TODO: currently we use either a fixed table width or the parent's size.
9487     // We also want to be able to calculate the table width from its content,
9488     // whether using fixed column widths or cell content min/max width.
9489     // Probably need a boolean flag to say whether we need to stretch cells
9490     // to fit the table width, or to simply use min/max cell widths. The
9491     // trouble with this is that if cell widths are not specified, they
9492     // will be tiny; we could use arbitrary defaults but this seems unsatisfactory.
9493     // Anyway, ignoring that problem, we probably need to factor layout into a function
9494     // that can can calculate the maximum unconstrained layout in case table size is
9495     // not specified. Then LayoutToBestSize() can choose to use either parent size to
9496     // constrain Layout(), or the previously-calculated max size to constraint layout.
9497
9498     return true;
9499 }
9500
9501 // Finds the absolute position and row height for the given character position
9502 bool wxRichTextTable::FindPosition(wxDC& dc, wxRichTextDrawingContext& context, long index, wxPoint& pt, int* height, bool forceLineStart)
9503 {
9504     wxRichTextCell* child = GetCell(index+1);
9505     if (child)
9506     {
9507         // Find the position at the start of the child cell, since the table doesn't
9508         // have any caret position of its own.
9509         return child->FindPosition(dc, context, -1, pt, height, forceLineStart);
9510     }
9511     else
9512         return false;
9513 }
9514
9515 // Get the cell at the given character position (in the range of the table).
9516 wxRichTextCell* wxRichTextTable::GetCell(long pos) const
9517 {
9518     int row = 0, col = 0;
9519     if (GetCellRowColumnPosition(pos, row, col))
9520     {
9521         return GetCell(row, col);
9522     }
9523     else
9524         return NULL;
9525 }
9526
9527 // Get the row/column for a given character position
9528 bool wxRichTextTable::GetCellRowColumnPosition(long pos, int& row, int& col) const
9529 {
9530     if (m_colCount == 0 || m_rowCount == 0)
9531         return false;
9532
9533     row = (int) (pos / m_colCount);
9534     col = pos - (row * m_colCount);
9535
9536     wxASSERT(row < m_rowCount && col < m_colCount);
9537
9538     if (row < m_rowCount && col < m_colCount)
9539         return true;
9540     else
9541         return false;
9542 }
9543
9544 // Calculate range, taking row/cell ordering into account instead of relying
9545 // on list ordering.
9546 void wxRichTextTable::CalculateRange(long start, long& end)
9547 {
9548     long current = start;
9549     long lastEnd = current;
9550
9551     if (IsTopLevel())
9552     {
9553         current = 0;
9554         lastEnd = 0;
9555     }
9556
9557     int i, j;
9558     for (i = 0; i < m_rowCount; i++)
9559     {
9560         for (j = 0; j < m_colCount; j++)
9561         {
9562             wxRichTextCell* child = GetCell(i, j);
9563             if (child)
9564             {
9565                 long childEnd = 0;
9566
9567                 child->CalculateRange(current, childEnd);
9568
9569                 lastEnd = childEnd;
9570                 current = childEnd + 1;
9571             }
9572         }
9573     }
9574
9575     // A top-level object always has a range of size 1,
9576     // because its children don't count at this level.
9577     end = start;
9578     m_range.SetRange(start, start);
9579
9580     // An object with no children has zero length
9581     if (m_children.GetCount() == 0)
9582         lastEnd --;
9583     m_ownRange.SetRange(0, lastEnd);
9584 }
9585
9586 // Gets the range size.
9587 bool wxRichTextTable::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, wxRichTextDrawingContext& context, int flags, wxPoint position, wxArrayInt* partialExtents) const
9588 {
9589     return wxRichTextBox::GetRangeSize(range, size, descent, dc, context, flags, position, partialExtents);
9590 }
9591
9592 // Deletes content in the given range.
9593 bool wxRichTextTable::DeleteRange(const wxRichTextRange& WXUNUSED(range))
9594 {
9595     // TODO: implement deletion of cells
9596     return true;
9597 }
9598
9599 // Gets any text in this object for the given range.
9600 wxString wxRichTextTable::GetTextForRange(const wxRichTextRange& range) const
9601 {
9602     return wxRichTextBox::GetTextForRange(range);
9603 }
9604
9605 // Copies this object.
9606 void wxRichTextTable::Copy(const wxRichTextTable& obj)
9607 {
9608     wxRichTextBox::Copy(obj);
9609
9610     ClearTable();
9611
9612     m_rowCount = obj.m_rowCount;
9613     m_colCount = obj.m_colCount;
9614
9615     m_cells.Add(wxRichTextObjectPtrArray(), m_rowCount);
9616
9617     int i, j;
9618     for (i = 0; i < m_rowCount; i++)
9619     {
9620         wxRichTextObjectPtrArray& colArray = m_cells[i];
9621         for (j = 0; j < m_colCount; j++)
9622         {
9623             wxRichTextCell* cell = wxDynamicCast(obj.GetCell(i, j)->Clone(), wxRichTextCell);
9624             AppendChild(cell);
9625
9626             colArray.Add(cell);
9627         }
9628     }
9629 }
9630
9631 void wxRichTextTable::ClearTable()
9632 {
9633     m_cells.Clear();
9634     DeleteChildren();
9635 }
9636
9637 bool wxRichTextTable::CreateTable(int rows, int cols)
9638 {
9639     ClearTable();
9640
9641     m_rowCount = rows;
9642     m_colCount = cols;
9643
9644     m_cells.Add(wxRichTextObjectPtrArray(), rows);
9645
9646     int i, j;
9647     for (i = 0; i < rows; i++)
9648     {
9649         wxRichTextObjectPtrArray& colArray = m_cells[i];
9650         for (j = 0; j < cols; j++)
9651         {
9652             wxRichTextCell* cell = new wxRichTextCell;
9653             AppendChild(cell);
9654             cell->AddParagraph(wxEmptyString);
9655
9656             colArray.Add(cell);
9657         }
9658     }
9659
9660     return true;
9661 }
9662
9663 wxRichTextCell* wxRichTextTable::GetCell(int row, int col) const
9664 {
9665     wxASSERT(row < m_rowCount);
9666     wxASSERT(col < m_colCount);
9667
9668     if (row < m_rowCount && col < m_colCount)
9669     {
9670         wxRichTextObjectPtrArray& colArray = m_cells[row];
9671         wxRichTextObject* obj = colArray[col];
9672         return wxDynamicCast(obj, wxRichTextCell);
9673     }
9674     else
9675         return NULL;
9676 }
9677
9678 // Returns a selection object specifying the selections between start and end character positions.
9679 // For example, a table would deduce what cells (of range length 1) are selected when dragging across the table.
9680 wxRichTextSelection wxRichTextTable::GetSelection(long start, long end) const
9681 {
9682     wxRichTextSelection selection;
9683     selection.SetContainer((wxRichTextTable*) this);
9684
9685     if (start > end)
9686     {
9687         long tmp = end;
9688         end = start;
9689         start = tmp;
9690     }
9691
9692     wxASSERT( start >= 0 && end < (m_colCount * m_rowCount));
9693
9694     if (end >= (m_colCount * m_rowCount))
9695         return selection;
9696
9697     // We need to find the rectangle of cells that is described by the rectangle
9698     // with start, end as the diagonal. Make sure we don't add cells that are
9699     // not currenty visible because they are overlapped by spanning cells.
9700 /*
9701     --------------------------
9702     | 0  | 1  | 2  | 3  | 4  |
9703     --------------------------
9704     | 5  | 6  | 7  | 8  | 9  |
9705     --------------------------
9706     | 10 | 11 | 12 | 13 | 14 |
9707     --------------------------
9708     | 15 | 16 | 17 | 18 | 19 |
9709     --------------------------
9710
9711     Let's say we select 6 -> 18.
9712
9713     Left and right edge cols of rectangle are 1 and 3 inclusive. Find least/greatest to find
9714     which is left and which is right.
9715
9716     Top and bottom edge rows are 1 and 3 inclusive. Again, find least/greatest to find top and bottom.
9717
9718     Now go through rows from 1 to 3 and only add cells that are (a) within above column range
9719     and (b) shown.
9720
9721
9722 */
9723
9724     int leftCol = start - m_colCount * int(start/m_colCount);
9725     int rightCol = end - m_colCount * int(end/m_colCount);
9726
9727     int topRow = int(start/m_colCount);
9728     int bottomRow = int(end/m_colCount);
9729
9730     if (leftCol > rightCol)
9731     {
9732         int tmp = rightCol;
9733         rightCol = leftCol;
9734         leftCol = tmp;
9735     }
9736
9737     if (topRow > bottomRow)
9738     {
9739         int tmp = bottomRow;
9740         bottomRow = topRow;
9741         topRow = tmp;
9742     }
9743
9744     int i, j;
9745     for (i = topRow; i <= bottomRow; i++)
9746     {
9747         for (j = leftCol; j <= rightCol; j++)
9748         {
9749             wxRichTextCell* cell = GetCell(i, j);
9750             if (cell && cell->IsShown())
9751                 selection.Add(cell->GetRange());
9752         }
9753     }
9754
9755     return selection;
9756 }
9757
9758 // Sets the attributes for the cells specified by the selection.
9759 bool wxRichTextTable::SetCellStyle(const wxRichTextSelection& selection, const wxRichTextAttr& style, int flags)
9760 {
9761     if (selection.GetContainer() != this)
9762         return false;
9763
9764     wxRichTextBuffer* buffer = GetBuffer();
9765     bool haveControl = (buffer && buffer->GetRichTextCtrl() != NULL);
9766     bool withUndo = haveControl && ((flags & wxRICHTEXT_SETSTYLE_WITH_UNDO) != 0);
9767
9768     if (withUndo)
9769         buffer->BeginBatchUndo(_("Set Cell Style"));
9770
9771     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
9772     while (node)
9773     {
9774         wxRichTextCell* cell = wxDynamicCast(node->GetData(), wxRichTextCell);
9775         if (cell && selection.WithinSelection(cell->GetRange().GetStart()))
9776             SetStyle(cell, style, flags);
9777         node = node->GetNext();
9778     }
9779
9780     // Do action, or delay it until end of batch.
9781     if (withUndo)
9782         buffer->EndBatchUndo();
9783
9784     return true;
9785 }
9786
9787 bool wxRichTextTable::DeleteRows(int startRow, int noRows)
9788 {
9789     wxASSERT((startRow + noRows) < m_rowCount);
9790     if ((startRow + noRows) >= m_rowCount)
9791         return false;
9792
9793     int i, j;
9794     for (i = startRow; i < (startRow+noRows); i++)
9795     {
9796         wxRichTextObjectPtrArray& colArray = m_cells[startRow];
9797         for (j = 0; j < (int) colArray.GetCount(); j++)
9798         {
9799             wxRichTextObject* cell = colArray[j];
9800             RemoveChild(cell, true);
9801         }
9802
9803         // Keep deleting at the same position, since we move all
9804         // the others up
9805         m_cells.RemoveAt(startRow);
9806     }
9807
9808     m_rowCount = m_rowCount - noRows;
9809
9810     return true;
9811 }
9812
9813 bool wxRichTextTable::DeleteColumns(int startCol, int noCols)
9814 {
9815     wxASSERT((startCol + noCols) < m_colCount);
9816     if ((startCol + noCols) >= m_colCount)
9817         return false;
9818
9819     bool deleteRows = (noCols == m_colCount);
9820
9821     int i, j;
9822     for (i = 0; i < m_rowCount; i++)
9823     {
9824         wxRichTextObjectPtrArray& colArray = m_cells[deleteRows ? 0 : i];
9825         for (j = startCol; j < (startCol+noCols); j++)
9826         {
9827             wxRichTextObject* cell = colArray[j];
9828             RemoveChild(cell, true);
9829         }
9830
9831         if (deleteRows)
9832             m_cells.RemoveAt(0);
9833     }
9834
9835     if (deleteRows)
9836         m_rowCount = 0;
9837     m_colCount = m_colCount - noCols;
9838
9839     return true;
9840 }
9841
9842 bool wxRichTextTable::AddRows(int startRow, int noRows, const wxRichTextAttr& attr)
9843 {
9844     wxASSERT(startRow <= m_rowCount);
9845     if (startRow > m_rowCount)
9846         return false;
9847
9848     int i, j;
9849     for (i = 0; i < noRows; i++)
9850     {
9851         int idx;
9852         if (startRow == m_rowCount)
9853         {
9854             m_cells.Add(wxRichTextObjectPtrArray());
9855             idx = m_cells.GetCount() - 1;
9856         }
9857         else
9858         {
9859             m_cells.Insert(wxRichTextObjectPtrArray(), startRow+i);
9860             idx = startRow+i;
9861         }
9862
9863         wxRichTextObjectPtrArray& colArray = m_cells[idx];
9864         for (j = 0; j < m_colCount; j++)
9865         {
9866             wxRichTextCell* cell = new wxRichTextCell;
9867             cell->GetAttributes() = attr;
9868
9869             AppendChild(cell);
9870             colArray.Add(cell);
9871         }
9872     }
9873
9874     m_rowCount = m_rowCount + noRows;
9875     return true;
9876 }
9877
9878 bool wxRichTextTable::AddColumns(int startCol, int noCols, const wxRichTextAttr& attr)
9879 {
9880     wxASSERT(startCol <= m_colCount);
9881     if (startCol > m_colCount)
9882         return false;
9883
9884     int i, j;
9885     for (i = 0; i < m_rowCount; i++)
9886     {
9887         wxRichTextObjectPtrArray& colArray = m_cells[i];
9888         for (j = 0; j < noCols; j++)
9889         {
9890             wxRichTextCell* cell = new wxRichTextCell;
9891             cell->GetAttributes() = attr;
9892
9893             AppendChild(cell);
9894
9895             if (startCol == m_colCount)
9896                 colArray.Add(cell);
9897             else
9898                 colArray.Insert(cell, startCol+j);
9899         }
9900     }
9901
9902     m_colCount = m_colCount + noCols;
9903
9904     return true;
9905 }
9906
9907 // Edit properties via a GUI
9908 bool wxRichTextTable::EditProperties(wxWindow* parent, wxRichTextBuffer* buffer)
9909 {
9910     wxRichTextObjectPropertiesDialog boxDlg(this, wxGetTopLevelParent(parent), wxID_ANY, _("Table Properties"));
9911     boxDlg.SetAttributes(GetAttributes());
9912
9913     if (boxDlg.ShowModal() == wxID_OK)
9914     {
9915         boxDlg.ApplyStyle(buffer->GetRichTextCtrl(), wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_RESET);
9916         return true;
9917     }
9918     else
9919         return false;
9920 }
9921
9922 /*
9923  * Module to initialise and clean up handlers
9924  */
9925
9926 class wxRichTextModule: public wxModule
9927 {
9928 DECLARE_DYNAMIC_CLASS(wxRichTextModule)
9929 public:
9930     wxRichTextModule() {}
9931     bool OnInit()
9932     {
9933         wxRichTextBuffer::SetRenderer(new wxRichTextStdRenderer);
9934         wxRichTextBuffer::InitStandardHandlers();
9935         wxRichTextParagraph::InitDefaultTabs();
9936
9937         wxRichTextXMLHandler::RegisterNodeName(wxT("text"), wxT("wxRichTextPlainText"));
9938         wxRichTextXMLHandler::RegisterNodeName(wxT("symbol"), wxT("wxRichTextPlainText"));
9939         wxRichTextXMLHandler::RegisterNodeName(wxT("image"), wxT("wxRichTextImage"));
9940         wxRichTextXMLHandler::RegisterNodeName(wxT("paragraph"), wxT("wxRichTextParagraph"));
9941         wxRichTextXMLHandler::RegisterNodeName(wxT("paragraphlayout"), wxT("wxRichTextParagraphLayoutBox"));
9942         wxRichTextXMLHandler::RegisterNodeName(wxT("textbox"), wxT("wxRichTextBox"));
9943         wxRichTextXMLHandler::RegisterNodeName(wxT("cell"), wxT("wxRichTextCell"));
9944         wxRichTextXMLHandler::RegisterNodeName(wxT("table"), wxT("wxRichTextTable"));
9945         wxRichTextXMLHandler::RegisterNodeName(wxT("field"), wxT("wxRichTextField"));
9946
9947         return true;
9948     }
9949     void OnExit()
9950     {
9951         wxRichTextBuffer::CleanUpHandlers();
9952         wxRichTextBuffer::CleanUpDrawingHandlers();
9953         wxRichTextBuffer::CleanUpFieldTypes();
9954         wxRichTextXMLHandler::ClearNodeToClassMap();
9955         wxRichTextDecimalToRoman(-1);
9956         wxRichTextParagraph::ClearDefaultTabs();
9957         wxRichTextCtrl::ClearAvailableFontNames();
9958         wxRichTextBuffer::SetRenderer(NULL);
9959     }
9960 };
9961
9962 IMPLEMENT_DYNAMIC_CLASS(wxRichTextModule, wxModule)
9963
9964
9965 // If the richtext lib is dynamically loaded after the app has already started
9966 // (such as from wxPython) then the built-in module system will not init this
9967 // module.  Provide this function to do it manually.
9968 void wxRichTextModuleInit()
9969 {
9970     wxModule* module = new wxRichTextModule;
9971     module->Init();
9972     wxModule::RegisterModule(module);
9973 }
9974
9975
9976 /*!
9977  * Commands for undo/redo
9978  *
9979  */
9980
9981 wxRichTextCommand::wxRichTextCommand(const wxString& name, wxRichTextCommandId id, wxRichTextBuffer* buffer,
9982                                      wxRichTextParagraphLayoutBox* container, wxRichTextCtrl* ctrl, bool ignoreFirstTime): wxCommand(true, name)
9983 {
9984     /* wxRichTextAction* action = */ new wxRichTextAction(this, name, id, buffer, container, ctrl, ignoreFirstTime);
9985 }
9986
9987 wxRichTextCommand::wxRichTextCommand(const wxString& name): wxCommand(true, name)
9988 {
9989 }
9990
9991 wxRichTextCommand::~wxRichTextCommand()
9992 {
9993     ClearActions();
9994 }
9995
9996 void wxRichTextCommand::AddAction(wxRichTextAction* action)
9997 {
9998     if (!m_actions.Member(action))
9999         m_actions.Append(action);
10000 }
10001
10002 bool wxRichTextCommand::Do()
10003 {
10004     for (wxList::compatibility_iterator node = m_actions.GetFirst(); node; node = node->GetNext())
10005     {
10006         wxRichTextAction* action = (wxRichTextAction*) node->GetData();
10007         action->Do();
10008     }
10009
10010     return true;
10011 }
10012
10013 bool wxRichTextCommand::Undo()
10014 {
10015     for (wxList::compatibility_iterator node = m_actions.GetLast(); node; node = node->GetPrevious())
10016     {
10017         wxRichTextAction* action = (wxRichTextAction*) node->GetData();
10018         action->Undo();
10019     }
10020
10021     return true;
10022 }
10023
10024 void wxRichTextCommand::ClearActions()
10025 {
10026     WX_CLEAR_LIST(wxList, m_actions);
10027 }
10028
10029 /*!
10030  * Individual action
10031  *
10032  */
10033
10034 wxRichTextAction::wxRichTextAction(wxRichTextCommand* cmd, const wxString& name, wxRichTextCommandId id,
10035                                    wxRichTextBuffer* buffer, wxRichTextParagraphLayoutBox* container,
10036                                    wxRichTextCtrl* ctrl, bool ignoreFirstTime)
10037 {
10038     m_buffer = buffer;
10039     m_object = NULL;
10040     m_containerAddress.Create(buffer, container);
10041     m_ignoreThis = ignoreFirstTime;
10042     m_cmdId = id;
10043     m_position = -1;
10044     m_ctrl = ctrl;
10045     m_name = name;
10046     m_newParagraphs.SetDefaultStyle(buffer->GetDefaultStyle());
10047     m_newParagraphs.SetBasicStyle(buffer->GetBasicStyle());
10048     if (cmd)
10049         cmd->AddAction(this);
10050 }
10051
10052 wxRichTextAction::~wxRichTextAction()
10053 {
10054     if (m_object)
10055         delete m_object;
10056 }
10057
10058 // Returns the container that this action refers to, using the container address and top-level buffer.
10059 wxRichTextParagraphLayoutBox* wxRichTextAction::GetContainer() const
10060 {
10061     wxRichTextParagraphLayoutBox* container = wxDynamicCast(GetContainerAddress().GetObject(m_buffer), wxRichTextParagraphLayoutBox);
10062     return container;
10063 }
10064
10065
10066 void wxRichTextAction::CalculateRefreshOptimizations(wxArrayInt& optimizationLineCharPositions, wxArrayInt& optimizationLineYPositions)
10067 {
10068     // Store a list of line start character and y positions so we can figure out which area
10069     // we need to refresh
10070
10071 #if wxRICHTEXT_USE_OPTIMIZED_DRAWING
10072     wxRichTextParagraphLayoutBox* container = GetContainer();
10073     wxASSERT(container != NULL);
10074     if (!container)
10075         return;
10076
10077     // NOTE: we're assuming that the buffer is laid out correctly at this point.
10078     // If we had several actions, which only invalidate and leave layout until the
10079     // paint handler is called, then this might not be true. So we may need to switch
10080     // optimisation on only when we're simply adding text and not simultaneously
10081     // deleting a selection, for example. Or, we make sure the buffer is laid out correctly
10082     // first, but of course this means we'll be doing it twice.
10083     if (!m_buffer->IsDirty() && m_ctrl) // can only do optimisation if the buffer is already laid out correctly
10084     {
10085         wxSize clientSize = m_ctrl->GetUnscaledSize(m_ctrl->GetClientSize());
10086         wxPoint firstVisiblePt = m_ctrl->GetUnscaledPoint(m_ctrl->GetFirstVisiblePoint());
10087         int lastY = firstVisiblePt.y + clientSize.y;
10088
10089         wxRichTextParagraph* para = container->GetParagraphAtPosition(GetRange().GetStart());
10090         wxRichTextObjectList::compatibility_iterator node = container->GetChildren().Find(para);
10091         while (node)
10092         {
10093             wxRichTextParagraph* child = (wxRichTextParagraph*) node->GetData();
10094             wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
10095             while (node2)
10096             {
10097                 wxRichTextLine* line = node2->GetData();
10098                 wxPoint pt = line->GetAbsolutePosition();
10099                 wxRichTextRange range = line->GetAbsoluteRange();
10100
10101                 if (pt.y > lastY)
10102                 {
10103                     node2 = wxRichTextLineList::compatibility_iterator();
10104                     node = wxRichTextObjectList::compatibility_iterator();
10105                 }
10106                 else if (range.GetStart() > GetPosition() && pt.y >= firstVisiblePt.y)
10107                 {
10108                     optimizationLineCharPositions.Add(range.GetStart());
10109                     optimizationLineYPositions.Add(pt.y);
10110                 }
10111
10112                 if (node2)
10113                     node2 = node2->GetNext();
10114             }
10115
10116             if (node)
10117                 node = node->GetNext();
10118         }
10119     }
10120 #endif
10121 }
10122
10123 bool wxRichTextAction::Do()
10124 {
10125     m_buffer->Modify(true);
10126
10127     wxRichTextParagraphLayoutBox* container = GetContainer();
10128     wxASSERT(container != NULL);
10129     if (!container)
10130         return false;
10131
10132     switch (m_cmdId)
10133     {
10134     case wxRICHTEXT_INSERT:
10135         {
10136             // Store a list of line start character and y positions so we can figure out which area
10137             // we need to refresh
10138             wxArrayInt optimizationLineCharPositions;
10139             wxArrayInt optimizationLineYPositions;
10140
10141 #if wxRICHTEXT_USE_OPTIMIZED_DRAWING
10142             CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
10143 #endif
10144
10145             container->InsertFragment(GetRange().GetStart(), m_newParagraphs);
10146             container->UpdateRanges();
10147
10148             // InvalidateHierarchy goes up the hierarchy as well as down, otherwise with a nested object,
10149             // Layout() would stop prematurely at the top level.
10150             container->InvalidateHierarchy(wxRichTextRange(wxMax(0, GetRange().GetStart()-1), GetRange().GetEnd()));
10151
10152             long newCaretPosition = GetPosition() + m_newParagraphs.GetOwnRange().GetLength();
10153
10154             // Character position to caret position
10155             newCaretPosition --;
10156
10157             // Don't take into account the last newline
10158             if (m_newParagraphs.GetPartialParagraph())
10159                 newCaretPosition --;
10160             else
10161                 if (m_newParagraphs.GetChildren().GetCount() > 1)
10162                 {
10163                     wxRichTextObject* p = (wxRichTextObject*) m_newParagraphs.GetChildren().GetLast()->GetData();
10164                     if (p->GetRange().GetLength() == 1)
10165                         newCaretPosition --;
10166                 }
10167
10168             newCaretPosition = wxMin(newCaretPosition, (container->GetOwnRange().GetEnd()-1));
10169
10170             UpdateAppearance(newCaretPosition, true /* send update event */, & optimizationLineCharPositions, & optimizationLineYPositions, true /* do */);
10171
10172             wxRichTextEvent cmdEvent(
10173                 wxEVT_COMMAND_RICHTEXT_CONTENT_INSERTED,
10174                 m_ctrl ? m_ctrl->GetId() : -1);
10175             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
10176             cmdEvent.SetRange(GetRange());
10177             cmdEvent.SetPosition(GetRange().GetStart());
10178             cmdEvent.SetContainer(container);
10179
10180             m_buffer->SendEvent(cmdEvent);
10181
10182             break;
10183         }
10184     case wxRICHTEXT_DELETE:
10185         {
10186             wxArrayInt optimizationLineCharPositions;
10187             wxArrayInt optimizationLineYPositions;
10188
10189 #if wxRICHTEXT_USE_OPTIMIZED_DRAWING
10190             CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
10191 #endif
10192
10193             container->DeleteRange(GetRange());
10194             container->UpdateRanges();
10195             // InvalidateHierarchy goes up the hierarchy as well as down, otherwise with a nested object,
10196             // Layout() would stop prematurely at the top level.
10197             container->InvalidateHierarchy(wxRichTextRange(GetRange().GetStart(), GetRange().GetStart()));
10198
10199             long caretPos = GetRange().GetStart()-1;
10200             if (caretPos >= container->GetOwnRange().GetEnd())
10201                 caretPos --;
10202
10203             UpdateAppearance(caretPos, true /* send update event */, & optimizationLineCharPositions, & optimizationLineYPositions, true /* do */);
10204
10205             wxRichTextEvent cmdEvent(
10206                 wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED,
10207                 m_ctrl ? m_ctrl->GetId() : -1);
10208             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
10209             cmdEvent.SetRange(GetRange());
10210             cmdEvent.SetPosition(GetRange().GetStart());
10211             cmdEvent.SetContainer(container);
10212
10213             m_buffer->SendEvent(cmdEvent);
10214
10215             break;
10216         }
10217     case wxRICHTEXT_CHANGE_STYLE:
10218     case wxRICHTEXT_CHANGE_PROPERTIES:
10219         {
10220             ApplyParagraphs(GetNewParagraphs());
10221
10222             // InvalidateHierarchy goes up the hierarchy as well as down, otherwise with a nested object,
10223             // Layout() would stop prematurely at the top level.
10224             container->InvalidateHierarchy(GetRange());
10225
10226             UpdateAppearance(GetPosition());
10227
10228             wxRichTextEvent cmdEvent(
10229                 m_cmdId == wxRICHTEXT_CHANGE_STYLE ? wxEVT_COMMAND_RICHTEXT_STYLE_CHANGED : wxEVT_COMMAND_RICHTEXT_PROPERTIES_CHANGED,
10230                 m_ctrl ? m_ctrl->GetId() : -1);
10231             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
10232             cmdEvent.SetRange(GetRange());
10233             cmdEvent.SetPosition(GetRange().GetStart());
10234             cmdEvent.SetContainer(container);
10235
10236             m_buffer->SendEvent(cmdEvent);
10237
10238             break;
10239         }
10240     case wxRICHTEXT_CHANGE_ATTRIBUTES:
10241         {
10242             wxRichTextObject* obj = m_objectAddress.GetObject(m_buffer); // container->GetChildAtPosition(GetRange().GetStart());
10243             if (obj)
10244             {
10245                 wxRichTextAttr oldAttr = obj->GetAttributes();
10246                 obj->GetAttributes() = m_attributes;
10247                 m_attributes = oldAttr;
10248             }
10249
10250             // InvalidateHierarchy goes up the hierarchy as well as down, otherwise with a nested object,
10251             // Layout() would stop prematurely at the top level.
10252             container->InvalidateHierarchy(GetRange());
10253
10254             UpdateAppearance(GetPosition());
10255
10256             wxRichTextEvent cmdEvent(
10257                 wxEVT_COMMAND_RICHTEXT_STYLE_CHANGED,
10258                 m_ctrl ? m_ctrl->GetId() : -1);
10259             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
10260             cmdEvent.SetRange(GetRange());
10261             cmdEvent.SetPosition(GetRange().GetStart());
10262             cmdEvent.SetContainer(container);
10263
10264             m_buffer->SendEvent(cmdEvent);
10265
10266             break;
10267         }
10268     case wxRICHTEXT_CHANGE_OBJECT:
10269         {
10270             wxRichTextObject* obj = m_objectAddress.GetObject(m_buffer);
10271             // wxRichTextObject* obj = container->GetChildAtPosition(GetRange().GetStart());
10272             if (obj && m_object)
10273             {
10274                 wxRichTextObjectList::compatibility_iterator node = container->GetChildren().Find(obj);
10275                 if (node)
10276                 {
10277                     wxRichTextObject* obj = node->GetData();
10278                     node->SetData(m_object);
10279                     m_object = obj;
10280                 }
10281             }
10282
10283             // InvalidateHierarchy goes up the hierarchy as well as down, otherwise with a nested object,
10284             // Layout() would stop prematurely at the top level.
10285             container->InvalidateHierarchy(GetRange());
10286
10287             UpdateAppearance(GetPosition());
10288
10289             // TODO: send new kind of modification event
10290
10291             break;
10292         }
10293     default:
10294         break;
10295     }
10296
10297     return true;
10298 }
10299
10300 bool wxRichTextAction::Undo()
10301 {
10302     m_buffer->Modify(true);
10303
10304     wxRichTextParagraphLayoutBox* container = GetContainer();
10305     wxASSERT(container != NULL);
10306     if (!container)
10307         return false;
10308
10309     switch (m_cmdId)
10310     {
10311     case wxRICHTEXT_INSERT:
10312         {
10313             wxArrayInt optimizationLineCharPositions;
10314             wxArrayInt optimizationLineYPositions;
10315
10316 #if wxRICHTEXT_USE_OPTIMIZED_DRAWING
10317             CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
10318 #endif
10319
10320             container->DeleteRange(GetRange());
10321             container->UpdateRanges();
10322
10323             // InvalidateHierarchy goes up the hierarchy as well as down, otherwise with a nested object,
10324             // Layout() would stop prematurely at the top level.
10325             container->InvalidateHierarchy(wxRichTextRange(GetRange().GetStart(), GetRange().GetStart()));
10326
10327             long newCaretPosition = GetPosition() - 1;
10328
10329             UpdateAppearance(newCaretPosition, true, /* send update event */ & optimizationLineCharPositions, & optimizationLineYPositions, false /* undo */);
10330
10331             wxRichTextEvent cmdEvent(
10332                 wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED,
10333                 m_ctrl ? m_ctrl->GetId() : -1);
10334             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
10335             cmdEvent.SetRange(GetRange());
10336             cmdEvent.SetPosition(GetRange().GetStart());
10337             cmdEvent.SetContainer(container);
10338
10339             m_buffer->SendEvent(cmdEvent);
10340
10341             break;
10342         }
10343     case wxRICHTEXT_DELETE:
10344         {
10345             wxArrayInt optimizationLineCharPositions;
10346             wxArrayInt optimizationLineYPositions;
10347
10348 #if wxRICHTEXT_USE_OPTIMIZED_DRAWING
10349             CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
10350 #endif
10351
10352             container->InsertFragment(GetRange().GetStart(), m_oldParagraphs);
10353             container->UpdateRanges();
10354
10355             // InvalidateHierarchy goes up the hierarchy as well as down, otherwise with a nested object,
10356             // Layout() would stop prematurely at the top level.
10357             container->InvalidateHierarchy(GetRange());
10358
10359             UpdateAppearance(GetPosition(), true, /* send update event */ & optimizationLineCharPositions, & optimizationLineYPositions, false /* undo */);
10360
10361             wxRichTextEvent cmdEvent(
10362                 wxEVT_COMMAND_RICHTEXT_CONTENT_INSERTED,
10363                 m_ctrl ? m_ctrl->GetId() : -1);
10364             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
10365             cmdEvent.SetRange(GetRange());
10366             cmdEvent.SetPosition(GetRange().GetStart());
10367             cmdEvent.SetContainer(container);
10368
10369             m_buffer->SendEvent(cmdEvent);
10370
10371             break;
10372         }
10373     case wxRICHTEXT_CHANGE_STYLE:
10374     case wxRICHTEXT_CHANGE_PROPERTIES:
10375         {
10376             ApplyParagraphs(GetOldParagraphs());
10377             // InvalidateHierarchy goes up the hierarchy as well as down, otherwise with a nested object,
10378             // Layout() would stop prematurely at the top level.
10379             container->InvalidateHierarchy(GetRange());
10380
10381             UpdateAppearance(GetPosition());
10382
10383             wxRichTextEvent cmdEvent(
10384                 m_cmdId == wxRICHTEXT_CHANGE_STYLE ? wxEVT_COMMAND_RICHTEXT_STYLE_CHANGED : wxEVT_COMMAND_RICHTEXT_PROPERTIES_CHANGED,
10385                 m_ctrl ? m_ctrl->GetId() : -1);
10386             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
10387             cmdEvent.SetRange(GetRange());
10388             cmdEvent.SetPosition(GetRange().GetStart());
10389             cmdEvent.SetContainer(container);
10390
10391             m_buffer->SendEvent(cmdEvent);
10392
10393             break;
10394         }
10395     case wxRICHTEXT_CHANGE_ATTRIBUTES:
10396     case wxRICHTEXT_CHANGE_OBJECT:
10397         {
10398             return Do();
10399         }
10400     default:
10401         break;
10402     }
10403
10404     return true;
10405 }
10406
10407 /// Update the control appearance
10408 void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent, wxArrayInt* optimizationLineCharPositions, wxArrayInt* optimizationLineYPositions, bool isDoCmd)
10409 {
10410     wxRichTextParagraphLayoutBox* container = GetContainer();
10411     wxASSERT(container != NULL);
10412     if (!container)
10413         return;
10414
10415     if (m_ctrl)
10416     {
10417         m_ctrl->SetFocusObject(container);
10418         m_ctrl->SetCaretPosition(caretPosition);
10419
10420         if (!m_ctrl->IsFrozen())
10421         {
10422             wxRect containerRect = container->GetRect();
10423
10424             m_ctrl->LayoutContent();
10425
10426             // Refresh everything if there were floating objects or the container changed size
10427             // (we can't yet optimize in these cases, since more complex interaction with other content occurs)
10428             if (container->GetFloatingObjectCount() > 0 || (container->GetParent() && containerRect != container->GetRect()))
10429             {
10430                 m_ctrl->Refresh(false);
10431             }
10432             else
10433
10434 #if wxRICHTEXT_USE_OPTIMIZED_DRAWING
10435             // Find refresh rectangle if we are in a position to optimise refresh
10436             if ((m_cmdId == wxRICHTEXT_INSERT || m_cmdId == wxRICHTEXT_DELETE) && optimizationLineCharPositions)
10437             {
10438                 size_t i;
10439
10440                 wxSize clientSize = m_ctrl->GetUnscaledSize(m_ctrl->GetClientSize());
10441                 wxPoint firstVisiblePt = m_ctrl->GetUnscaledPoint(m_ctrl->GetFirstVisiblePoint());
10442
10443                 // Start/end positions
10444                 int firstY = 0;
10445                 int lastY = firstVisiblePt.y + clientSize.y;
10446
10447                 bool foundEnd = false;
10448
10449                 // position offset - how many characters were inserted
10450                 int positionOffset = GetRange().GetLength();
10451
10452                 // Determine whether this is Do or Undo, and adjust positionOffset accordingly
10453                 if ((m_cmdId == wxRICHTEXT_DELETE && isDoCmd) || (m_cmdId == wxRICHTEXT_INSERT && !isDoCmd))
10454                     positionOffset = - positionOffset;
10455
10456                 // find the first line which is being drawn at the same position as it was
10457                 // before. Since we're talking about a simple insertion, we can assume
10458                 // that the rest of the window does not need to be redrawn.
10459
10460                 wxRichTextParagraph* para = container->GetParagraphAtPosition(GetPosition());
10461                 // Since we support floating layout, we should redraw the whole para instead of just
10462                 // the first line touching the invalid range.
10463                 if (para)
10464                 {
10465                     firstY = para->GetPosition().y;
10466                 }
10467
10468                 wxRichTextObjectList::compatibility_iterator node = container->GetChildren().Find(para);
10469                 while (node)
10470                 {
10471                     wxRichTextParagraph* child = (wxRichTextParagraph*) node->GetData();
10472                     wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
10473                     while (node2)
10474                     {
10475                         wxRichTextLine* line = node2->GetData();
10476                         wxPoint pt = line->GetAbsolutePosition();
10477                         wxRichTextRange range = line->GetAbsoluteRange();
10478
10479                         // we want to find the first line that is in the same position
10480                         // as before. This will mean we're at the end of the changed text.
10481
10482                         if (pt.y > lastY) // going past the end of the window, no more info
10483                         {
10484                             node2 = wxRichTextLineList::compatibility_iterator();
10485                             node = wxRichTextObjectList::compatibility_iterator();
10486                         }
10487                         // Detect last line in the buffer
10488                         else if (!node2->GetNext() && para->GetRange().Contains(container->GetOwnRange().GetEnd()))
10489                         {
10490                             // If deleting text, make sure we refresh below as well as above
10491                             if (positionOffset >= 0)
10492                             {
10493                                 foundEnd = true;
10494                                 lastY = pt.y + line->GetSize().y;
10495                             }
10496
10497                             node2 = wxRichTextLineList::compatibility_iterator();
10498                             node = wxRichTextObjectList::compatibility_iterator();
10499
10500                             break;
10501                         }
10502                         else
10503                         {
10504                             // search for this line being at the same position as before
10505                             for (i = 0; i < optimizationLineCharPositions->GetCount(); i++)
10506                             {
10507                                 if (((*optimizationLineCharPositions)[i] + positionOffset == range.GetStart()) &&
10508                                     ((*optimizationLineYPositions)[i] == pt.y))
10509                                 {
10510                                     // Stop, we're now the same as we were
10511                                     foundEnd = true;
10512
10513                                     lastY = pt.y;
10514
10515                                     node2 = wxRichTextLineList::compatibility_iterator();
10516                                     node = wxRichTextObjectList::compatibility_iterator();
10517
10518                                     break;
10519                                 }
10520                             }
10521                         }
10522
10523                         if (node2)
10524                             node2 = node2->GetNext();
10525                     }
10526
10527                     if (node)
10528                         node = node->GetNext();
10529                 }
10530
10531                 firstY = wxMax(firstVisiblePt.y, firstY);
10532                 if (!foundEnd)
10533                     lastY = firstVisiblePt.y + clientSize.y;
10534
10535                 // Convert to device coordinates
10536                 wxRect rect(m_ctrl->GetPhysicalPoint(m_ctrl->GetScaledPoint(wxPoint(firstVisiblePt.x, firstY))), m_ctrl->GetScaledSize(wxSize(clientSize.x, lastY - firstY)));
10537                 m_ctrl->RefreshRect(rect);
10538             }
10539             else
10540 #endif
10541                 m_ctrl->Refresh(false);
10542
10543             m_ctrl->PositionCaret();
10544
10545             // This causes styles to persist when doing programmatic
10546             // content creation except when Freeze/Thaw is used, so
10547             // disable this and check for the consequences.
10548             // m_ctrl->SetDefaultStyleToCursorStyle();
10549
10550             if (sendUpdateEvent)
10551                 wxTextCtrl::SendTextUpdatedEvent(m_ctrl);
10552         }
10553     }
10554 }
10555
10556 /// Replace the buffer paragraphs with the new ones.
10557 void wxRichTextAction::ApplyParagraphs(const wxRichTextParagraphLayoutBox& fragment)
10558 {
10559     wxRichTextParagraphLayoutBox* container = GetContainer();
10560     wxASSERT(container != NULL);
10561     if (!container)
10562         return;
10563
10564     wxRichTextObjectList::compatibility_iterator node = fragment.GetChildren().GetFirst();
10565     while (node)
10566     {
10567         wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
10568         wxASSERT (para != NULL);
10569
10570         // We'll replace the existing paragraph by finding the paragraph at this position,
10571         // delete its node data, and setting a copy as the new node data.
10572         // TODO: make more efficient by simply swapping old and new paragraph objects.
10573
10574         wxRichTextParagraph* existingPara = container->GetParagraphAtPosition(para->GetRange().GetStart());
10575         if (existingPara)
10576         {
10577             wxRichTextObjectList::compatibility_iterator bufferParaNode = container->GetChildren().Find(existingPara);
10578             if (bufferParaNode)
10579             {
10580                 wxRichTextParagraph* newPara = new wxRichTextParagraph(*para);
10581                 newPara->SetParent(container);
10582
10583                 bufferParaNode->SetData(newPara);
10584
10585                 delete existingPara;
10586             }
10587         }
10588
10589         node = node->GetNext();
10590     }
10591 }
10592
10593
10594 /*!
10595  * wxRichTextRange
10596  * This stores beginning and end positions for a range of data.
10597  */
10598
10599 WX_DEFINE_OBJARRAY(wxRichTextRangeArray);
10600
10601 /// Limit this range to be within 'range'
10602 bool wxRichTextRange::LimitTo(const wxRichTextRange& range)
10603 {
10604     if (m_start < range.m_start)
10605         m_start = range.m_start;
10606
10607     if (m_end > range.m_end)
10608         m_end = range.m_end;
10609
10610     return true;
10611 }
10612
10613 /*!
10614  * wxRichTextImage implementation
10615  * This object represents an image.
10616  */
10617
10618 IMPLEMENT_DYNAMIC_CLASS(wxRichTextImage, wxRichTextObject)
10619
10620 wxRichTextImage::wxRichTextImage(const wxImage& image, wxRichTextObject* parent, wxRichTextAttr* charStyle):
10621     wxRichTextObject(parent)
10622 {
10623     Init();
10624     m_imageBlock.MakeImageBlockDefaultQuality(image, wxBITMAP_TYPE_PNG);
10625     if (charStyle)
10626         SetAttributes(*charStyle);
10627 }
10628
10629 wxRichTextImage::wxRichTextImage(const wxRichTextImageBlock& imageBlock, wxRichTextObject* parent, wxRichTextAttr* charStyle):
10630     wxRichTextObject(parent)
10631 {
10632     Init();
10633     m_imageBlock = imageBlock;
10634     if (charStyle)
10635         SetAttributes(*charStyle);
10636 }
10637
10638 void wxRichTextImage::Init()
10639 {
10640     m_originalImageSize = wxSize(-1, -1);
10641 }
10642
10643 /// Create a cached image at the required size
10644 bool wxRichTextImage::LoadImageCache(wxDC& dc, bool resetCache)
10645 {
10646     if (!m_imageBlock.IsOk())
10647         return false;
10648
10649     // If we have an original image size, use that to compute the cached bitmap size
10650     // instead of loading the image each time. This way we can avoid loading
10651     // the image so long as the new cached bitmap size hasn't changed.
10652
10653     wxImage image;
10654     if (resetCache || m_originalImageSize == wxSize(-1, -1))
10655     {
10656         m_imageCache = wxNullBitmap;
10657
10658         m_imageBlock.Load(image);
10659         if (!image.IsOk())
10660             return false;
10661
10662         m_originalImageSize = wxSize(image.GetWidth(), image.GetHeight());
10663     }
10664
10665     int width = m_originalImageSize.GetWidth();
10666     int height = m_originalImageSize.GetHeight();
10667
10668     int parentWidth = 0;
10669     int parentHeight = 0;
10670
10671     int maxWidth = -1;
10672     int maxHeight = -1;
10673
10674     wxRichTextBuffer* buffer = GetBuffer();
10675     if (buffer)
10676     {
10677         wxSize sz;
10678         if (buffer->GetRichTextCtrl())
10679         {
10680             // Subtract borders
10681             sz = buffer->GetRichTextCtrl()->GetClientSize();
10682
10683             wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
10684             marginRect = wxRect(0, 0, sz.x, sz.y);
10685             buffer->GetBoxRects(dc, buffer, buffer->GetAttributes(), marginRect, borderRect, contentRect, paddingRect, outlineRect);
10686
10687             sz = contentRect.GetSize();
10688
10689             // Start with a maximum width of the control size, even if not specified by the content,
10690             // to minimize the amount of picture overlapping the right-hand side
10691             maxWidth = sz.x;
10692         }
10693         else
10694             sz = buffer->GetCachedSize();
10695         parentWidth = sz.GetWidth();
10696         parentHeight = sz.GetHeight();
10697     }
10698
10699     if (GetAttributes().GetTextBoxAttr().GetWidth().IsValid() && GetAttributes().GetTextBoxAttr().GetWidth().GetValue() > 0)
10700     {
10701         if (parentWidth > 0 && GetAttributes().GetTextBoxAttr().GetWidth().GetUnits() == wxTEXT_ATTR_UNITS_PERCENTAGE)
10702             width = (int) ((GetAttributes().GetTextBoxAttr().GetWidth().GetValue() * parentWidth)/100.0);
10703         else if (GetAttributes().GetTextBoxAttr().GetWidth().GetUnits() == wxTEXT_ATTR_UNITS_TENTHS_MM)
10704             width = ConvertTenthsMMToPixels(dc, GetAttributes().GetTextBoxAttr().GetWidth().GetValue());
10705         else if (GetAttributes().GetTextBoxAttr().GetWidth().GetUnits() == wxTEXT_ATTR_UNITS_PIXELS)
10706             width = GetAttributes().GetTextBoxAttr().GetWidth().GetValue();
10707     }
10708
10709     // Limit to max width
10710
10711     if (GetAttributes().GetTextBoxAttr().GetMaxSize().GetWidth().IsValid() && GetAttributes().GetTextBoxAttr().GetMaxSize().GetWidth().GetValue() > 0)
10712     {
10713         int mw = -1;
10714
10715         if (parentWidth > 0 && GetAttributes().GetTextBoxAttr().GetMaxSize().GetWidth().GetUnits() == wxTEXT_ATTR_UNITS_PERCENTAGE)
10716             mw = (int) ((GetAttributes().GetTextBoxAttr().GetMaxSize().GetWidth().GetValue() * parentWidth)/100.0);
10717         else if (GetAttributes().GetTextBoxAttr().GetMaxSize().GetWidth().GetUnits() == wxTEXT_ATTR_UNITS_TENTHS_MM)
10718             mw = ConvertTenthsMMToPixels(dc, GetAttributes().GetTextBoxAttr().GetMaxSize().GetWidth().GetValue());
10719         else if (GetAttributes().GetTextBoxAttr().GetMaxSize().GetWidth().GetUnits() == wxTEXT_ATTR_UNITS_PIXELS)
10720             mw = GetAttributes().GetTextBoxAttr().GetMaxSize().GetWidth().GetValue();
10721
10722         // If we already have a smaller max width due to the constraints of the control size,
10723         // don't use the larger max width.
10724         if (mw != -1 && ((maxWidth == -1) || (mw < maxWidth)))
10725             maxWidth = mw;
10726     }
10727
10728     if (maxWidth > 0 && width > maxWidth)
10729         width = maxWidth;
10730
10731     // Preserve the aspect ratio
10732     if (width != m_originalImageSize.GetWidth())
10733         height = (int) (float(m_originalImageSize.GetHeight()) * (float(width)/float(m_originalImageSize.GetWidth())));
10734
10735     if (GetAttributes().GetTextBoxAttr().GetHeight().IsValid() && GetAttributes().GetTextBoxAttr().GetHeight().GetValue() > 0)
10736     {
10737         if (parentHeight > 0 && GetAttributes().GetTextBoxAttr().GetHeight().GetUnits() == wxTEXT_ATTR_UNITS_PERCENTAGE)
10738             height = (int) ((GetAttributes().GetTextBoxAttr().GetHeight().GetValue() * parentHeight)/100.0);
10739         else if (GetAttributes().GetTextBoxAttr().GetHeight().GetUnits() == wxTEXT_ATTR_UNITS_TENTHS_MM)
10740             height = ConvertTenthsMMToPixels(dc, GetAttributes().GetTextBoxAttr().GetHeight().GetValue());
10741         else if (GetAttributes().GetTextBoxAttr().GetHeight().GetUnits() == wxTEXT_ATTR_UNITS_PIXELS)
10742             height = GetAttributes().GetTextBoxAttr().GetHeight().GetValue();
10743
10744         // Preserve the aspect ratio
10745         if (height != m_originalImageSize.GetHeight())
10746             width = (int) (float(m_originalImageSize.GetWidth()) * (float(height)/float(m_originalImageSize.GetHeight())));
10747     }
10748
10749     // Limit to max height
10750
10751     if (GetAttributes().GetTextBoxAttr().GetMaxSize().GetHeight().IsValid() && GetAttributes().GetTextBoxAttr().GetMaxSize().GetHeight().GetValue() > 0)
10752     {
10753         if (parentHeight > 0 && GetAttributes().GetTextBoxAttr().GetMaxSize().GetHeight().GetUnits() == wxTEXT_ATTR_UNITS_PERCENTAGE)
10754             maxHeight = (int) ((GetAttributes().GetTextBoxAttr().GetMaxSize().GetHeight().GetValue() * parentHeight)/100.0);
10755         else if (GetAttributes().GetTextBoxAttr().GetMaxSize().GetHeight().GetUnits() == wxTEXT_ATTR_UNITS_TENTHS_MM)
10756             maxHeight = ConvertTenthsMMToPixels(dc, GetAttributes().GetTextBoxAttr().GetMaxSize().GetHeight().GetValue());
10757         else if (GetAttributes().GetTextBoxAttr().GetMaxSize().GetHeight().GetUnits() == wxTEXT_ATTR_UNITS_PIXELS)
10758             maxHeight = GetAttributes().GetTextBoxAttr().GetMaxSize().GetHeight().GetValue();
10759     }
10760
10761     if (maxHeight > 0 && height > maxHeight)
10762     {
10763         height = maxHeight;
10764
10765         // Preserve the aspect ratio
10766         if (height != m_originalImageSize.GetHeight())
10767             width = (int) (float(m_originalImageSize.GetWidth()) * (float(height)/float(m_originalImageSize.GetHeight())));
10768     }
10769
10770     if (m_imageCache.IsOk() && m_imageCache.GetWidth() == width && m_imageCache.GetHeight() == height)
10771     {
10772         // Do nothing, we didn't need to change the image cache
10773     }
10774     else
10775     {
10776         if (!image.IsOk())
10777         {
10778             m_imageBlock.Load(image);
10779             if (!image.IsOk())
10780                 return false;
10781         }
10782
10783         if (image.GetWidth() == width && image.GetHeight() == height)
10784             m_imageCache = wxBitmap(image);
10785         else
10786         {
10787             // If the original width and height is small, e.g. 400 or below,
10788             // scale up and then down to improve image quality. This can make
10789             // a big difference, with not much performance hit.
10790             int upscaleThreshold = 400;
10791             wxImage img;
10792             if (image.GetWidth() <= upscaleThreshold || image.GetHeight() <= upscaleThreshold)
10793             {
10794                 img = image.Scale(image.GetWidth()*2, image.GetHeight()*2);
10795                 img.Rescale(width, height, wxIMAGE_QUALITY_HIGH);
10796             }
10797             else
10798                 img = image.Scale(width, height, wxIMAGE_QUALITY_HIGH);
10799             m_imageCache = wxBitmap(img);
10800         }
10801     }
10802
10803     return m_imageCache.IsOk();
10804 }
10805
10806 /// Draw the item
10807 bool wxRichTextImage::Draw(wxDC& dc, wxRichTextDrawingContext& context, const wxRichTextRange& WXUNUSED(range), const wxRichTextSelection& selection, const wxRect& rect, int WXUNUSED(descent), int WXUNUSED(style))
10808 {
10809     if (!IsShown())
10810         return true;
10811
10812     // Don't need cached size AFAIK
10813     // wxSize size = GetCachedSize();
10814     if (!LoadImageCache(dc))
10815         return false;
10816
10817     wxRichTextAttr attr(GetAttributes());
10818     context.ApplyVirtualAttributes(attr, this);
10819
10820     DrawBoxAttributes(dc, GetBuffer(), attr, wxRect(rect.GetPosition(), GetCachedSize()));
10821
10822     wxSize imageSize(m_imageCache.GetWidth(), m_imageCache.GetHeight());
10823     wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
10824     marginRect = rect; // outer rectangle, will calculate contentRect
10825     GetBoxRects(dc, GetBuffer(), attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
10826
10827     dc.DrawBitmap(m_imageCache, contentRect.x, contentRect.y, true);
10828
10829     if (selection.WithinSelection(GetRange().GetStart(), this))
10830     {
10831         wxCheckSetBrush(dc, *wxBLACK_BRUSH);
10832         wxCheckSetPen(dc, *wxBLACK_PEN);
10833         dc.SetLogicalFunction(wxINVERT);
10834         dc.DrawRectangle(contentRect);
10835         dc.SetLogicalFunction(wxCOPY);
10836     }
10837
10838     return true;
10839 }
10840
10841 /// Lay the item out
10842 bool wxRichTextImage::Layout(wxDC& dc, wxRichTextDrawingContext& context, const wxRect& rect, const wxRect& WXUNUSED(parentRect), int WXUNUSED(style))
10843 {
10844     if (!LoadImageCache(dc))
10845         return false;
10846
10847     wxSize imageSize(m_imageCache.GetWidth(), m_imageCache.GetHeight());
10848     wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
10849     contentRect = wxRect(wxPoint(0,0), imageSize);
10850
10851     wxRichTextAttr attr(GetAttributes());
10852     context.ApplyVirtualAttributes(attr, this);
10853
10854     GetBoxRects(dc, GetBuffer(), attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
10855
10856     wxSize overallSize = marginRect.GetSize();
10857
10858     SetCachedSize(overallSize);
10859     SetMaxSize(overallSize);
10860     SetMinSize(overallSize);
10861     SetPosition(rect.GetPosition());
10862
10863     return true;
10864 }
10865
10866 /// Get/set the object size for the given range. Returns false if the range
10867 /// is invalid for this object.
10868 bool wxRichTextImage::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& WXUNUSED(descent), wxDC& dc, wxRichTextDrawingContext& context, int WXUNUSED(flags), wxPoint WXUNUSED(position), wxArrayInt* partialExtents) const
10869 {
10870     if (!range.IsWithin(GetRange()))
10871         return false;
10872
10873     if (!((wxRichTextImage*)this)->LoadImageCache(dc))
10874     {
10875         size.x = 0; size.y = 0;
10876         if (partialExtents)
10877             partialExtents->Add(0);
10878         return false;
10879     }
10880
10881     wxRichTextAttr attr(GetAttributes());
10882     context.ApplyVirtualAttributes(attr, (wxRichTextObject*) this);
10883
10884     wxSize imageSize(m_imageCache.GetWidth(), m_imageCache.GetHeight());
10885     wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect;
10886     contentRect = wxRect(wxPoint(0,0), imageSize);
10887     GetBoxRects(dc, GetBuffer(), attr, marginRect, borderRect, contentRect, paddingRect, outlineRect);
10888
10889     wxSize overallSize = marginRect.GetSize();
10890
10891     if (partialExtents)
10892         partialExtents->Add(overallSize.x);
10893
10894     size = overallSize;
10895
10896     return true;
10897 }
10898
10899 // Get the 'natural' size for an object. For an image, it would be the
10900 // image size.
10901 wxTextAttrSize wxRichTextImage::GetNaturalSize() const
10902 {
10903     wxTextAttrSize size;
10904     if (GetImageCache().IsOk())
10905     {
10906         size.SetWidth(GetImageCache().GetWidth(), wxTEXT_ATTR_UNITS_PIXELS);
10907         size.SetHeight(GetImageCache().GetHeight(), wxTEXT_ATTR_UNITS_PIXELS);
10908     }
10909     return size;
10910 }
10911
10912
10913 /// Copy
10914 void wxRichTextImage::Copy(const wxRichTextImage& obj)
10915 {
10916     wxRichTextObject::Copy(obj);
10917
10918     m_imageBlock = obj.m_imageBlock;
10919     m_originalImageSize = obj.m_originalImageSize;
10920 }
10921
10922 /// Edit properties via a GUI
10923 bool wxRichTextImage::EditProperties(wxWindow* parent, wxRichTextBuffer* buffer)
10924 {
10925     wxRichTextObjectPropertiesDialog imageDlg(this, wxGetTopLevelParent(parent), wxID_ANY, _("Picture Properties"));
10926     imageDlg.SetAttributes(GetAttributes());
10927
10928     if (imageDlg.ShowModal() == wxID_OK)
10929     {
10930         // By passing wxRICHTEXT_SETSTYLE_RESET, indeterminate attributes set by the user will be set as
10931         // indeterminate in the object.
10932         imageDlg.ApplyStyle(buffer->GetRichTextCtrl(), wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_RESET);
10933         return true;
10934     }
10935     else
10936         return false;
10937 }
10938
10939 /*!
10940  * Utilities
10941  *
10942  */
10943
10944 /// Compare two attribute objects
10945 bool wxTextAttrEq(const wxRichTextAttr& attr1, const wxRichTextAttr& attr2)
10946 {
10947     return (attr1 == attr2);
10948 }
10949
10950 /// Compare tabs
10951 bool wxRichTextTabsEq(const wxArrayInt& tabs1, const wxArrayInt& tabs2)
10952 {
10953     if (tabs1.GetCount() != tabs2.GetCount())
10954         return false;
10955
10956     size_t i;
10957     for (i = 0; i < tabs1.GetCount(); i++)
10958     {
10959         if (tabs1[i] != tabs2[i])
10960             return false;
10961     }
10962     return true;
10963 }
10964
10965 bool wxRichTextApplyStyle(wxRichTextAttr& destStyle, const wxRichTextAttr& style, wxRichTextAttr* compareWith)
10966 {
10967     return destStyle.Apply(style, compareWith);
10968 }
10969
10970 // Remove attributes
10971 bool wxRichTextRemoveStyle(wxRichTextAttr& destStyle, const wxRichTextAttr& style)
10972 {
10973     return destStyle.RemoveStyle(style);
10974 }
10975
10976 /// Combine two bitlists, specifying the bits of interest with separate flags.
10977 bool wxRichTextCombineBitlists(int& valueA, int valueB, int& flagsA, int flagsB)
10978 {
10979     return wxRichTextAttr::CombineBitlists(valueA, valueB, flagsA, flagsB);
10980 }
10981
10982 /// Compare two bitlists
10983 bool wxRichTextBitlistsEqPartial(int valueA, int valueB, int flags)
10984 {
10985     return wxRichTextAttr::BitlistsEqPartial(valueA, valueB, flags);
10986 }
10987
10988 /// Split into paragraph and character styles
10989 bool wxRichTextSplitParaCharStyles(const wxRichTextAttr& style, wxRichTextAttr& parStyle, wxRichTextAttr& charStyle)
10990 {
10991     return wxRichTextAttr::SplitParaCharStyles(style, parStyle, charStyle);
10992 }
10993
10994 /// Convert a decimal to Roman numerals
10995 wxString wxRichTextDecimalToRoman(long n)
10996 {
10997     static wxArrayInt decimalNumbers;
10998     static wxArrayString romanNumbers;
10999
11000     // Clean up arrays
11001     if (n == -1)
11002     {
11003         decimalNumbers.Clear();
11004         romanNumbers.Clear();
11005         return wxEmptyString;
11006     }
11007
11008     if (decimalNumbers.GetCount() == 0)
11009     {
11010         #define wxRichTextAddDecRom(n, r) decimalNumbers.Add(n); romanNumbers.Add(r);
11011
11012         wxRichTextAddDecRom(1000, wxT("M"));
11013         wxRichTextAddDecRom(900, wxT("CM"));
11014         wxRichTextAddDecRom(500, wxT("D"));
11015         wxRichTextAddDecRom(400, wxT("CD"));
11016         wxRichTextAddDecRom(100, wxT("C"));
11017         wxRichTextAddDecRom(90, wxT("XC"));
11018         wxRichTextAddDecRom(50, wxT("L"));
11019         wxRichTextAddDecRom(40, wxT("XL"));
11020         wxRichTextAddDecRom(10, wxT("X"));
11021         wxRichTextAddDecRom(9, wxT("IX"));
11022         wxRichTextAddDecRom(5, wxT("V"));
11023         wxRichTextAddDecRom(4, wxT("IV"));
11024         wxRichTextAddDecRom(1, wxT("I"));
11025     }
11026
11027     int i = 0;
11028     wxString roman;
11029
11030     while (n > 0 && i < 13)
11031     {
11032         if (n >= decimalNumbers[i])
11033         {
11034             n -= decimalNumbers[i];
11035             roman += romanNumbers[i];
11036         }
11037         else
11038         {
11039             i ++;
11040         }
11041     }
11042     if (roman.IsEmpty())
11043         roman = wxT("0");
11044     return roman;
11045 }
11046
11047 /*!
11048  * wxRichTextFileHandler
11049  * Base class for file handlers
11050  */
11051
11052 IMPLEMENT_CLASS(wxRichTextFileHandler, wxObject)
11053
11054 #if wxUSE_FFILE && wxUSE_STREAMS
11055 bool wxRichTextFileHandler::LoadFile(wxRichTextBuffer *buffer, const wxString& filename)
11056 {
11057     wxFFileInputStream stream(filename);
11058     if (stream.IsOk())
11059         return LoadFile(buffer, stream);
11060
11061     return false;
11062 }
11063
11064 bool wxRichTextFileHandler::SaveFile(wxRichTextBuffer *buffer, const wxString& filename)
11065 {
11066     wxFFileOutputStream stream(filename);
11067     if (stream.IsOk())
11068         return SaveFile(buffer, stream);
11069
11070     return false;
11071 }
11072 #endif // wxUSE_FFILE && wxUSE_STREAMS
11073
11074 /// Can we handle this filename (if using files)? By default, checks the extension.
11075 bool wxRichTextFileHandler::CanHandle(const wxString& filename) const
11076 {
11077     wxString path, file, ext;
11078     wxFileName::SplitPath(filename, & path, & file, & ext);
11079
11080     return (ext.Lower() == GetExtension());
11081 }
11082
11083 /*!
11084  * wxRichTextTextHandler
11085  * Plain text handler
11086  */
11087
11088 IMPLEMENT_CLASS(wxRichTextPlainTextHandler, wxRichTextFileHandler)
11089
11090 #if wxUSE_STREAMS
11091 bool wxRichTextPlainTextHandler::DoLoadFile(wxRichTextBuffer *buffer, wxInputStream& stream)
11092 {
11093     if (!stream.IsOk())
11094         return false;
11095
11096     wxString str;
11097     int lastCh = 0;
11098
11099     while (!stream.Eof())
11100     {
11101         int ch = stream.GetC();
11102
11103         if (!stream.Eof())
11104         {
11105             if (ch == 10 && lastCh != 13)
11106                 str += wxT('\n');
11107
11108             if (ch > 0 && ch != 10)
11109                 str += wxChar(ch);
11110
11111             lastCh = ch;
11112         }
11113     }
11114
11115     buffer->ResetAndClearCommands();
11116     buffer->Clear();
11117     buffer->AddParagraphs(str);
11118     buffer->UpdateRanges();
11119
11120     return true;
11121 }
11122
11123 bool wxRichTextPlainTextHandler::DoSaveFile(wxRichTextBuffer *buffer, wxOutputStream& stream)
11124 {
11125     if (!stream.IsOk())
11126         return false;
11127
11128     wxString text = buffer->GetText();
11129
11130     wxString newLine = wxRichTextLineBreakChar;
11131     text.Replace(newLine, wxT("\n"));
11132
11133     wxCharBuffer buf = text.ToAscii();
11134
11135     stream.Write((const char*) buf, text.length());
11136     return true;
11137 }
11138 #endif // wxUSE_STREAMS
11139
11140 /*
11141  * Stores information about an image, in binary in-memory form
11142  */
11143
11144 wxRichTextImageBlock::wxRichTextImageBlock()
11145 {
11146     Init();
11147 }
11148
11149 wxRichTextImageBlock::wxRichTextImageBlock(const wxRichTextImageBlock& block):wxObject()
11150 {
11151     Init();
11152     Copy(block);
11153 }
11154
11155 wxRichTextImageBlock::~wxRichTextImageBlock()
11156 {
11157     wxDELETEA(m_data);
11158 }
11159
11160 void wxRichTextImageBlock::Init()
11161 {
11162     m_data = NULL;
11163     m_dataSize = 0;
11164     m_imageType = wxBITMAP_TYPE_INVALID;
11165 }
11166
11167 void wxRichTextImageBlock::Clear()
11168 {
11169     wxDELETEA(m_data);
11170     m_dataSize = 0;
11171     m_imageType = wxBITMAP_TYPE_INVALID;
11172 }
11173
11174
11175 // Load the original image into a memory block.
11176 // If the image is not a JPEG, we must convert it into a JPEG
11177 // to conserve space.
11178 // If it's not a JPEG we can make use of 'image', already scaled, so we don't have to
11179 // load the image a 2nd time.
11180
11181 bool wxRichTextImageBlock::MakeImageBlock(const wxString& filename, wxBitmapType imageType,
11182                                           wxImage& image, bool convertToJPEG)
11183 {
11184     m_imageType = imageType;
11185
11186     wxString filenameToRead(filename);
11187     bool removeFile = false;
11188
11189     if (imageType == wxBITMAP_TYPE_INVALID)
11190         return false; // Could not determine image type
11191
11192     if ((imageType != wxBITMAP_TYPE_JPEG) && convertToJPEG)
11193     {
11194         wxString tempFile =
11195             wxFileName::CreateTempFileName(_("image"));
11196
11197         wxASSERT(!tempFile.IsEmpty());
11198
11199         image.SaveFile(tempFile, wxBITMAP_TYPE_JPEG);
11200         filenameToRead = tempFile;
11201         removeFile = true;
11202
11203         m_imageType = wxBITMAP_TYPE_JPEG;
11204     }
11205     wxFile file;
11206     if (!file.Open(filenameToRead))
11207         return false;
11208
11209     m_dataSize = (size_t) file.Length();
11210     file.Close();
11211
11212     if (m_data)
11213         delete[] m_data;
11214     m_data = ReadBlock(filenameToRead, m_dataSize);
11215
11216     if (removeFile)
11217         wxRemoveFile(filenameToRead);
11218
11219     return (m_data != NULL);
11220 }
11221
11222 // Make an image block from the wxImage in the given
11223 // format.
11224 bool wxRichTextImageBlock::MakeImageBlock(wxImage& image, wxBitmapType imageType, int quality)
11225 {
11226     image.SetOption(wxT("quality"), quality);
11227
11228     if (imageType == wxBITMAP_TYPE_INVALID)
11229         return false; // Could not determine image type
11230
11231     return DoMakeImageBlock(image, imageType);
11232 }
11233
11234 // Uses a const wxImage for efficiency, but can't set quality (only relevant for JPEG)
11235 bool wxRichTextImageBlock::MakeImageBlockDefaultQuality(const wxImage& image, wxBitmapType imageType)
11236 {
11237     if (imageType == wxBITMAP_TYPE_INVALID)
11238         return false; // Could not determine image type
11239
11240     return DoMakeImageBlock(image, imageType);
11241 }
11242
11243 // Makes the image block
11244 bool wxRichTextImageBlock::DoMakeImageBlock(const wxImage& image, wxBitmapType imageType)
11245 {
11246     wxMemoryOutputStream memStream;
11247     if (!image.SaveFile(memStream, imageType))
11248     {
11249         return false;
11250     }
11251
11252     unsigned char* block = new unsigned char[memStream.GetSize()];
11253     if (!block)
11254         return false;
11255
11256     if (m_data)
11257         delete[] m_data;
11258     m_data = block;
11259
11260     m_imageType = imageType;
11261     m_dataSize = memStream.GetSize();
11262
11263     memStream.CopyTo(m_data, m_dataSize);
11264
11265     return (m_data != NULL);
11266 }
11267
11268 // Write to a file
11269 bool wxRichTextImageBlock::Write(const wxString& filename)
11270 {
11271     return WriteBlock(filename, m_data, m_dataSize);
11272 }
11273
11274 void wxRichTextImageBlock::Copy(const wxRichTextImageBlock& block)
11275 {
11276     m_imageType = block.m_imageType;
11277     wxDELETEA(m_data);
11278     m_dataSize = block.m_dataSize;
11279     if (m_dataSize == 0)
11280         return;
11281
11282     m_data = new unsigned char[m_dataSize];
11283     unsigned int i;
11284     for (i = 0; i < m_dataSize; i++)
11285         m_data[i] = block.m_data[i];
11286 }
11287
11288 //// Operators
11289 void wxRichTextImageBlock::operator=(const wxRichTextImageBlock& block)
11290 {
11291     Copy(block);
11292 }
11293
11294 // Load a wxImage from the block
11295 bool wxRichTextImageBlock::Load(wxImage& image)
11296 {
11297     if (!m_data)
11298         return false;
11299
11300     // Read in the image.
11301 #if wxUSE_STREAMS
11302     wxMemoryInputStream mstream(m_data, m_dataSize);
11303     bool success = image.LoadFile(mstream, GetImageType());
11304 #else
11305     wxString tempFile = wxFileName::CreateTempFileName(_("image"));
11306     wxASSERT(!tempFile.IsEmpty());
11307
11308     if (!WriteBlock(tempFile, m_data, m_dataSize))
11309     {
11310         return false;
11311     }
11312     success = image.LoadFile(tempFile, GetImageType());
11313     wxRemoveFile(tempFile);
11314 #endif
11315
11316     return success;
11317 }
11318
11319 // Write data in hex to a stream
11320 bool wxRichTextImageBlock::WriteHex(wxOutputStream& stream)
11321 {
11322     if (m_dataSize == 0)
11323         return true;
11324
11325     int bufSize = 100000;
11326     if (int(2*m_dataSize) < bufSize)
11327         bufSize = 2*m_dataSize;
11328     char* buf = new char[bufSize+1];
11329
11330     int left = m_dataSize;
11331     int n, i, j;
11332     j = 0;
11333     while (left > 0)
11334     {
11335         if (left*2 > bufSize)
11336         {
11337             n = bufSize; left -= (bufSize/2);
11338         }
11339         else
11340         {
11341             n = left*2; left = 0;
11342         }
11343
11344         char* b = buf;
11345         for (i = 0; i < (n/2); i++)
11346         {
11347             wxDecToHex(m_data[j], b, b+1);
11348             b += 2; j ++;
11349         }
11350
11351         buf[n] = 0;
11352         stream.Write((const char*) buf, n);
11353     }
11354     delete[] buf;
11355     return true;
11356 }
11357
11358 // Read data in hex from a stream
11359 bool wxRichTextImageBlock::ReadHex(wxInputStream& stream, int length, wxBitmapType imageType)
11360 {
11361     int dataSize = length/2;
11362
11363     if (m_data)
11364         delete[] m_data;
11365
11366     // create a null terminated temporary string:
11367     char str[3];
11368     str[2] = '\0';
11369
11370     m_data = new unsigned char[dataSize];
11371     int i;
11372     for (i = 0; i < dataSize; i ++)
11373     {
11374         str[0] = (char)stream.GetC();
11375         str[1] = (char)stream.GetC();
11376
11377         m_data[i] = (unsigned char)wxHexToDec(str);
11378     }
11379
11380     m_dataSize = dataSize;
11381     m_imageType = imageType;
11382
11383     return true;
11384 }
11385
11386 // Allocate and read from stream as a block of memory
11387 unsigned char* wxRichTextImageBlock::ReadBlock(wxInputStream& stream, size_t size)
11388 {
11389     unsigned char* block = new unsigned char[size];
11390     if (!block)
11391         return NULL;
11392
11393     stream.Read(block, size);
11394
11395     return block;
11396 }
11397
11398 unsigned char* wxRichTextImageBlock::ReadBlock(const wxString& filename, size_t size)
11399 {
11400     wxFileInputStream stream(filename);
11401     if (!stream.IsOk())
11402         return NULL;
11403
11404     return ReadBlock(stream, size);
11405 }
11406
11407 // Write memory block to stream
11408 bool wxRichTextImageBlock::WriteBlock(wxOutputStream& stream, unsigned char* block, size_t size)
11409 {
11410     stream.Write((void*) block, size);
11411     return stream.IsOk();
11412
11413 }
11414
11415 // Write memory block to file
11416 bool wxRichTextImageBlock::WriteBlock(const wxString& filename, unsigned char* block, size_t size)
11417 {
11418     wxFileOutputStream outStream(filename);
11419     if (!outStream.IsOk())
11420         return false;
11421
11422     return WriteBlock(outStream, block, size);
11423 }
11424
11425 // Gets the extension for the block's type
11426 wxString wxRichTextImageBlock::GetExtension() const
11427 {
11428     wxImageHandler* handler = wxImage::FindHandler(GetImageType());
11429     if (handler)
11430         return handler->GetExtension();
11431     else
11432         return wxEmptyString;
11433 }
11434
11435 #if wxUSE_DATAOBJ
11436
11437 /*!
11438  * The data object for a wxRichTextBuffer
11439  */
11440
11441 const wxChar *wxRichTextBufferDataObject::ms_richTextBufferFormatId = wxT("wxShape");
11442
11443 wxRichTextBufferDataObject::wxRichTextBufferDataObject(wxRichTextBuffer* richTextBuffer)
11444 {
11445     m_richTextBuffer = richTextBuffer;
11446
11447     // this string should uniquely identify our format, but is otherwise
11448     // arbitrary
11449     m_formatRichTextBuffer.SetId(GetRichTextBufferFormatId());
11450
11451     SetFormat(m_formatRichTextBuffer);
11452 }
11453
11454 wxRichTextBufferDataObject::~wxRichTextBufferDataObject()
11455 {
11456     delete m_richTextBuffer;
11457 }
11458
11459 // after a call to this function, the richTextBuffer is owned by the caller and it
11460 // is responsible for deleting it!
11461 wxRichTextBuffer* wxRichTextBufferDataObject::GetRichTextBuffer()
11462 {
11463     wxRichTextBuffer* richTextBuffer = m_richTextBuffer;
11464     m_richTextBuffer = NULL;
11465
11466     return richTextBuffer;
11467 }
11468
11469 wxDataFormat wxRichTextBufferDataObject::GetPreferredFormat(Direction WXUNUSED(dir)) const
11470 {
11471     return m_formatRichTextBuffer;
11472 }
11473
11474 size_t wxRichTextBufferDataObject::GetDataSize() const
11475 {
11476     if (!m_richTextBuffer)
11477         return 0;
11478
11479     wxString bufXML;
11480
11481     {
11482         wxStringOutputStream stream(& bufXML);
11483         if (!m_richTextBuffer->SaveFile(stream, wxRICHTEXT_TYPE_XML))
11484         {
11485             wxLogError(wxT("Could not write the buffer to an XML stream.\nYou may have forgotten to add the XML file handler."));
11486             return 0;
11487         }
11488     }
11489
11490 #if wxUSE_UNICODE
11491     wxCharBuffer buffer = bufXML.mb_str(wxConvUTF8);
11492     return strlen(buffer) + 1;
11493 #else
11494     return bufXML.Length()+1;
11495 #endif
11496 }
11497
11498 bool wxRichTextBufferDataObject::GetDataHere(void *pBuf) const
11499 {
11500     if (!pBuf || !m_richTextBuffer)
11501         return false;
11502
11503     wxString bufXML;
11504
11505     {
11506         wxStringOutputStream stream(& bufXML);
11507         if (!m_richTextBuffer->SaveFile(stream, wxRICHTEXT_TYPE_XML))
11508         {
11509             wxLogError(wxT("Could not write the buffer to an XML stream.\nYou may have forgotten to add the XML file handler."));
11510             return 0;
11511         }
11512     }
11513
11514 #if wxUSE_UNICODE
11515     wxCharBuffer buffer = bufXML.mb_str(wxConvUTF8);
11516     size_t len = strlen(buffer);
11517     memcpy((char*) pBuf, (const char*) buffer, len);
11518     ((char*) pBuf)[len] = 0;
11519 #else
11520     size_t len = bufXML.Length();
11521     memcpy((char*) pBuf, (const char*) bufXML.c_str(), len);
11522     ((char*) pBuf)[len] = 0;
11523 #endif
11524
11525     return true;
11526 }
11527
11528 bool wxRichTextBufferDataObject::SetData(size_t WXUNUSED(len), const void *buf)
11529 {
11530     wxDELETE(m_richTextBuffer);
11531
11532     wxString bufXML((const char*) buf, wxConvUTF8);
11533
11534     m_richTextBuffer = new wxRichTextBuffer;
11535
11536     wxStringInputStream stream(bufXML);
11537     if (!m_richTextBuffer->LoadFile(stream, wxRICHTEXT_TYPE_XML))
11538     {
11539         wxLogError(wxT("Could not read the buffer from an XML stream.\nYou may have forgotten to add the XML file handler."));
11540
11541         wxDELETE(m_richTextBuffer);
11542
11543         return false;
11544     }
11545     return true;
11546 }
11547
11548 #endif
11549     // wxUSE_DATAOBJ
11550
11551
11552 /*
11553  * wxRichTextFontTable
11554  * Manages quick access to a pool of fonts for rendering rich text
11555  */
11556
11557 WX_DECLARE_STRING_HASH_MAP_WITH_DECL(wxFont, wxRichTextFontTableHashMap, class WXDLLIMPEXP_RICHTEXT);
11558
11559 class wxRichTextFontTableData: public wxObjectRefData
11560 {
11561 public:
11562     wxRichTextFontTableData() {}
11563
11564     wxFont FindFont(const wxRichTextAttr& fontSpec, double fontScale);
11565
11566     wxRichTextFontTableHashMap  m_hashMap;
11567 };
11568
11569 wxFont wxRichTextFontTableData::FindFont(const wxRichTextAttr& fontSpec, double fontScale)
11570 {
11571     wxString facename(fontSpec.GetFontFaceName());
11572
11573     int fontSize = fontSpec.GetFontSize();
11574     if (fontScale != 1.0)
11575         fontSize = (int) ((double(fontSize) * fontScale) + 0.5);
11576
11577     wxString units;
11578     if (fontSpec.HasFontPixelSize() && !fontSpec.HasFontPointSize())
11579         units = wxT("px");
11580     else
11581         units = wxT("pt");
11582     wxString spec = wxString::Format(wxT("%d-%s-%d-%d-%d-%d-%s-%d"),
11583         fontSize, units.c_str(), fontSpec.GetFontStyle(), fontSpec.GetFontWeight(), (int) fontSpec.GetFontUnderlined(), (int) fontSpec.GetFontStrikethrough(),
11584         facename.c_str(), (int) fontSpec.GetFontEncoding());
11585
11586     wxRichTextFontTableHashMap::iterator entry = m_hashMap.find(spec);
11587     if ( entry == m_hashMap.end() )
11588     {
11589         if (fontSpec.HasFontPixelSize() && !fontSpec.HasFontPointSize())
11590         {
11591             wxFont font(wxSize(0, fontSize), wxFONTFAMILY_DEFAULT, fontSpec.GetFontStyle(), fontSpec.GetFontWeight(), fontSpec.GetFontUnderlined(), facename);
11592             if (fontSpec.HasFontStrikethrough() && fontSpec.GetFontStrikethrough())
11593                 font.SetStrikethrough(true);
11594             m_hashMap[spec] = font;
11595             return font;
11596         }
11597         else
11598         {
11599             wxFont font(fontSize, wxFONTFAMILY_DEFAULT, fontSpec.GetFontStyle(), fontSpec.GetFontWeight(), fontSpec.GetFontUnderlined(), facename.c_str());
11600             if (fontSpec.HasFontStrikethrough() && fontSpec.GetFontStrikethrough())
11601                 font.SetStrikethrough(true);
11602
11603             m_hashMap[spec] = font;
11604             return font;
11605         }
11606     }
11607     else
11608     {
11609         return entry->second;
11610     }
11611 }
11612
11613 IMPLEMENT_DYNAMIC_CLASS(wxRichTextFontTable, wxObject)
11614
11615 wxRichTextFontTable::wxRichTextFontTable()
11616 {
11617     m_refData = new wxRichTextFontTableData;
11618     m_fontScale = 1.0;
11619 }
11620
11621 wxRichTextFontTable::wxRichTextFontTable(const wxRichTextFontTable& table)
11622     : wxObject()
11623 {
11624     (*this) = table;
11625 }
11626
11627 wxRichTextFontTable::~wxRichTextFontTable()
11628 {
11629     UnRef();
11630 }
11631
11632 bool wxRichTextFontTable::operator == (const wxRichTextFontTable& table) const
11633 {
11634     return (m_refData == table.m_refData);
11635 }
11636
11637 void wxRichTextFontTable::operator= (const wxRichTextFontTable& table)
11638 {
11639     Ref(table);
11640     m_fontScale = table.m_fontScale;
11641 }
11642
11643 wxFont wxRichTextFontTable::FindFont(const wxRichTextAttr& fontSpec)
11644 {
11645     wxRichTextFontTableData* data = (wxRichTextFontTableData*) m_refData;
11646     if (data)
11647         return data->FindFont(fontSpec, m_fontScale);
11648     else
11649         return wxFont();
11650 }
11651
11652 void wxRichTextFontTable::Clear()
11653 {
11654     wxRichTextFontTableData* data = (wxRichTextFontTableData*) m_refData;
11655     if (data)
11656         data->m_hashMap.clear();
11657 }
11658
11659 void wxRichTextFontTable::SetFontScale(double fontScale)
11660 {
11661     if (fontScale != m_fontScale)
11662         Clear();
11663     m_fontScale = fontScale;
11664 }
11665
11666 // wxTextBoxAttr
11667
11668 void wxTextBoxAttr::Reset()
11669 {
11670     m_flags = 0;
11671     m_floatMode = wxTEXT_BOX_ATTR_FLOAT_NONE;
11672     m_clearMode = wxTEXT_BOX_ATTR_CLEAR_NONE;
11673     m_collapseMode = wxTEXT_BOX_ATTR_COLLAPSE_NONE;
11674     m_verticalAlignment = wxTEXT_BOX_ATTR_VERTICAL_ALIGNMENT_NONE;
11675     m_boxStyleName = wxEmptyString;
11676
11677     m_margins.Reset();
11678     m_padding.Reset();
11679     m_position.Reset();
11680
11681     m_size.Reset();
11682     m_minSize.Reset();
11683     m_maxSize.Reset();
11684
11685     m_border.Reset();
11686     m_outline.Reset();
11687 }
11688
11689 // Equality test
11690 bool wxTextBoxAttr::operator== (const wxTextBoxAttr& attr) const
11691 {
11692     return (
11693         m_flags == attr.m_flags &&
11694         m_floatMode == attr.m_floatMode &&
11695         m_clearMode == attr.m_clearMode &&
11696         m_collapseMode == attr.m_collapseMode &&
11697         m_verticalAlignment == attr.m_verticalAlignment &&
11698
11699         m_margins == attr.m_margins &&
11700         m_padding == attr.m_padding &&
11701         m_position == attr.m_position &&
11702
11703         m_size == attr.m_size &&
11704         m_minSize == attr.m_minSize &&
11705         m_maxSize == attr.m_maxSize &&
11706
11707         m_border == attr.m_border &&
11708         m_outline == attr.m_outline &&
11709
11710         m_boxStyleName == attr.m_boxStyleName
11711         );
11712 }
11713
11714 // Partial equality test
11715 bool wxTextBoxAttr::EqPartial(const wxTextBoxAttr& attr, bool weakTest) const
11716 {
11717     if (!weakTest &&
11718             ((!HasFloatMode() && attr.HasFloatMode()) ||
11719              (!HasClearMode() && attr.HasClearMode()) ||
11720              (!HasCollapseBorders() && attr.HasCollapseBorders()) ||
11721              (!HasVerticalAlignment() && attr.HasVerticalAlignment()) ||
11722              (!HasBoxStyleName() && attr.HasBoxStyleName())))
11723     {
11724         return false;
11725     }
11726     if (attr.HasFloatMode() && HasFloatMode() && (GetFloatMode() != attr.GetFloatMode()))
11727         return false;
11728
11729     if (attr.HasClearMode() && HasClearMode() && (GetClearMode() != attr.GetClearMode()))
11730         return false;
11731
11732     if (attr.HasCollapseBorders() && HasCollapseBorders() && (attr.GetCollapseBorders() != GetCollapseBorders()))
11733         return false;
11734
11735     if (attr.HasVerticalAlignment() && HasVerticalAlignment() && (attr.GetVerticalAlignment() != GetVerticalAlignment()))
11736         return false;
11737
11738     if (attr.HasBoxStyleName() && HasBoxStyleName() && (attr.GetBoxStyleName() != GetBoxStyleName()))
11739         return false;
11740
11741     // Position
11742
11743     if (!m_position.EqPartial(attr.m_position, weakTest))
11744         return false;
11745
11746     // Size
11747
11748     if (!m_size.EqPartial(attr.m_size, weakTest))
11749         return false;
11750     if (!m_minSize.EqPartial(attr.m_minSize, weakTest))
11751         return false;
11752     if (!m_maxSize.EqPartial(attr.m_maxSize, weakTest))
11753         return false;
11754
11755     // Margins
11756
11757     if (!m_margins.EqPartial(attr.m_margins, weakTest))
11758         return false;
11759
11760     // Padding
11761
11762     if (!m_padding.EqPartial(attr.m_padding, weakTest))
11763         return false;
11764
11765     // Border
11766
11767     if (!GetBorder().EqPartial(attr.GetBorder(), weakTest))
11768         return false;
11769
11770     // Outline
11771
11772     if (!GetOutline().EqPartial(attr.GetOutline(), weakTest))
11773         return false;
11774
11775     return true;
11776 }
11777
11778 // Merges the given attributes. If compareWith
11779 // is non-NULL, then it will be used to mask out those attributes that are the same in style
11780 // and compareWith, for situations where we don't want to explicitly set inherited attributes.
11781 bool wxTextBoxAttr::Apply(const wxTextBoxAttr& attr, const wxTextBoxAttr* compareWith)
11782 {
11783     if (attr.HasFloatMode())
11784     {
11785         if (!(compareWith && compareWith->HasFloatMode() && compareWith->GetFloatMode() == attr.GetFloatMode()))
11786             SetFloatMode(attr.GetFloatMode());
11787     }
11788
11789     if (attr.HasClearMode())
11790     {
11791         if (!(compareWith && compareWith->HasClearMode() && compareWith->GetClearMode() == attr.GetClearMode()))
11792             SetClearMode(attr.GetClearMode());
11793     }
11794
11795     if (attr.HasCollapseBorders())
11796     {
11797         if (!(compareWith && compareWith->HasCollapseBorders() && compareWith->GetCollapseBorders() == attr.GetCollapseBorders()))
11798             SetCollapseBorders(attr.GetCollapseBorders());
11799     }
11800
11801     if (attr.HasVerticalAlignment())
11802     {
11803         if (!(compareWith && compareWith->HasVerticalAlignment() && compareWith->GetVerticalAlignment() == attr.GetVerticalAlignment()))
11804             SetVerticalAlignment(attr.GetVerticalAlignment());
11805     }
11806
11807     if (attr.HasBoxStyleName())
11808     {
11809         if (!(compareWith && compareWith->HasBoxStyleName() && compareWith->GetBoxStyleName() == attr.GetBoxStyleName()))
11810             SetBoxStyleName(attr.GetBoxStyleName());
11811     }
11812
11813     m_margins.Apply(attr.m_margins, compareWith ? (& attr.m_margins) : (const wxTextAttrDimensions*) NULL);
11814     m_padding.Apply(attr.m_padding, compareWith ? (& attr.m_padding) : (const wxTextAttrDimensions*) NULL);
11815     m_position.Apply(attr.m_position, compareWith ? (& attr.m_position) : (const wxTextAttrDimensions*) NULL);
11816
11817     m_size.Apply(attr.m_size, compareWith ? (& attr.m_size) : (const wxTextAttrSize*) NULL);
11818     m_minSize.Apply(attr.m_minSize, compareWith ? (& attr.m_minSize) : (const wxTextAttrSize*) NULL);
11819     m_maxSize.Apply(attr.m_maxSize, compareWith ? (& attr.m_maxSize) : (const wxTextAttrSize*) NULL);
11820
11821     m_border.Apply(attr.m_border, compareWith ? (& attr.m_border) : (const wxTextAttrBorders*) NULL);
11822     m_outline.Apply(attr.m_outline, compareWith ? (& attr.m_outline) : (const wxTextAttrBorders*) NULL);
11823
11824     return true;
11825 }
11826
11827 // Remove specified attributes from this object
11828 bool wxTextBoxAttr::RemoveStyle(const wxTextBoxAttr& attr)
11829 {
11830     if (attr.HasFloatMode())
11831         RemoveFlag(wxTEXT_BOX_ATTR_FLOAT);
11832
11833     if (attr.HasClearMode())
11834         RemoveFlag(wxTEXT_BOX_ATTR_CLEAR);
11835
11836     if (attr.HasCollapseBorders())
11837         RemoveFlag(wxTEXT_BOX_ATTR_COLLAPSE_BORDERS);
11838
11839     if (attr.HasVerticalAlignment())
11840         RemoveFlag(wxTEXT_BOX_ATTR_VERTICAL_ALIGNMENT);
11841
11842     if (attr.HasBoxStyleName())
11843     {
11844         SetBoxStyleName(wxEmptyString);
11845         RemoveFlag(wxTEXT_BOX_ATTR_BOX_STYLE_NAME);
11846     }
11847
11848     m_margins.RemoveStyle(attr.m_margins);
11849     m_padding.RemoveStyle(attr.m_padding);
11850     m_position.RemoveStyle(attr.m_position);
11851
11852     m_size.RemoveStyle(attr.m_size);
11853     m_minSize.RemoveStyle(attr.m_minSize);
11854     m_maxSize.RemoveStyle(attr.m_maxSize);
11855
11856     m_border.RemoveStyle(attr.m_border);
11857     m_outline.RemoveStyle(attr.m_outline);
11858
11859     return true;
11860 }
11861
11862 // Collects the attributes that are common to a range of content, building up a note of
11863 // which attributes are absent in some objects and which clash in some objects.
11864 void wxTextBoxAttr::CollectCommonAttributes(const wxTextBoxAttr& attr, wxTextBoxAttr& clashingAttr, wxTextBoxAttr& absentAttr)
11865 {
11866     if (attr.HasFloatMode())
11867     {
11868         if (!clashingAttr.HasFloatMode() && !absentAttr.HasFloatMode())
11869         {
11870             if (HasFloatMode())
11871             {
11872                 if (GetFloatMode() != attr.GetFloatMode())
11873                 {
11874                     clashingAttr.AddFlag(wxTEXT_BOX_ATTR_FLOAT);
11875                     RemoveFlag(wxTEXT_BOX_ATTR_FLOAT);
11876                 }
11877             }
11878             else
11879                 SetFloatMode(attr.GetFloatMode());
11880         }
11881     }
11882     else
11883         absentAttr.AddFlag(wxTEXT_BOX_ATTR_FLOAT);
11884
11885     if (attr.HasClearMode())
11886     {
11887         if (!clashingAttr.HasClearMode() && !absentAttr.HasClearMode())
11888         {
11889             if (HasClearMode())
11890             {
11891                 if (GetClearMode() != attr.GetClearMode())
11892                 {
11893                     clashingAttr.AddFlag(wxTEXT_BOX_ATTR_CLEAR);
11894                     RemoveFlag(wxTEXT_BOX_ATTR_CLEAR);
11895                 }
11896             }
11897             else
11898                 SetClearMode(attr.GetClearMode());
11899         }
11900     }
11901     else
11902         absentAttr.AddFlag(wxTEXT_BOX_ATTR_CLEAR);
11903
11904     if (attr.HasCollapseBorders())
11905     {
11906         if (!clashingAttr.HasCollapseBorders() && !absentAttr.HasCollapseBorders())
11907         {
11908             if (HasCollapseBorders())
11909             {
11910                 if (GetCollapseBorders() != attr.GetCollapseBorders())
11911                 {
11912                     clashingAttr.AddFlag(wxTEXT_BOX_ATTR_COLLAPSE_BORDERS);
11913                     RemoveFlag(wxTEXT_BOX_ATTR_COLLAPSE_BORDERS);
11914                 }
11915             }
11916             else
11917                 SetCollapseBorders(attr.GetCollapseBorders());
11918         }
11919     }
11920     else
11921         absentAttr.AddFlag(wxTEXT_BOX_ATTR_COLLAPSE_BORDERS);
11922
11923     if (attr.HasVerticalAlignment())
11924     {
11925         if (!clashingAttr.HasVerticalAlignment() && !absentAttr.HasVerticalAlignment())
11926         {
11927             if (HasVerticalAlignment())
11928             {
11929                 if (GetVerticalAlignment() != attr.GetVerticalAlignment())
11930                 {
11931                     clashingAttr.AddFlag(wxTEXT_BOX_ATTR_VERTICAL_ALIGNMENT);
11932                     RemoveFlag(wxTEXT_BOX_ATTR_VERTICAL_ALIGNMENT);
11933                 }
11934             }
11935             else
11936                 SetVerticalAlignment(attr.GetVerticalAlignment());
11937         }
11938     }
11939     else
11940         absentAttr.AddFlag(wxTEXT_BOX_ATTR_VERTICAL_ALIGNMENT);
11941
11942     if (attr.HasBoxStyleName())
11943     {
11944         if (!clashingAttr.HasBoxStyleName() && !absentAttr.HasBoxStyleName())
11945         {
11946             if (HasBoxStyleName())
11947             {
11948                 if (GetBoxStyleName() != attr.GetBoxStyleName())
11949                 {
11950                     clashingAttr.AddFlag(wxTEXT_BOX_ATTR_BOX_STYLE_NAME);
11951                     RemoveFlag(wxTEXT_BOX_ATTR_BOX_STYLE_NAME);
11952                 }
11953             }
11954             else
11955                 SetBoxStyleName(attr.GetBoxStyleName());
11956         }
11957     }
11958     else
11959         absentAttr.AddFlag(wxTEXT_BOX_ATTR_BOX_STYLE_NAME);
11960
11961     m_margins.CollectCommonAttributes(attr.m_margins, clashingAttr.m_margins, absentAttr.m_margins);
11962     m_padding.CollectCommonAttributes(attr.m_padding, clashingAttr.m_padding, absentAttr.m_padding);
11963     m_position.CollectCommonAttributes(attr.m_position, clashingAttr.m_position, absentAttr.m_position);
11964
11965     m_size.CollectCommonAttributes(attr.m_size, clashingAttr.m_size, absentAttr.m_size);
11966     m_minSize.CollectCommonAttributes(attr.m_minSize, clashingAttr.m_minSize, absentAttr.m_minSize);
11967     m_maxSize.CollectCommonAttributes(attr.m_maxSize, clashingAttr.m_maxSize, absentAttr.m_maxSize);
11968
11969     m_border.CollectCommonAttributes(attr.m_border, clashingAttr.m_border, absentAttr.m_border);
11970     m_outline.CollectCommonAttributes(attr.m_outline, clashingAttr.m_outline, absentAttr.m_outline);
11971 }
11972
11973 bool wxTextBoxAttr::IsDefault() const
11974 {
11975     return GetFlags() == 0 && !m_border.IsValid() && !m_outline.IsValid() &&
11976         !m_size.IsValid() && !m_minSize.IsValid() && !m_maxSize.IsValid() &&
11977         !m_position.IsValid() && !m_padding.IsValid() && !m_margins.IsValid();
11978 }
11979
11980 // wxRichTextAttr
11981
11982 void wxRichTextAttr::Copy(const wxRichTextAttr& attr)
11983 {
11984     wxTextAttr::Copy(attr);
11985
11986     m_textBoxAttr = attr.m_textBoxAttr;
11987 }
11988
11989 bool wxRichTextAttr::operator==(const wxRichTextAttr& attr) const
11990 {
11991     if (!(wxTextAttr::operator==(attr)))
11992         return false;
11993
11994     return (m_textBoxAttr == attr.m_textBoxAttr);
11995 }
11996
11997 // Partial equality test
11998 bool wxRichTextAttr::EqPartial(const wxRichTextAttr& attr, bool weakTest) const
11999 {
12000     if (!(wxTextAttr::EqPartial(attr, weakTest)))
12001         return false;
12002
12003     return m_textBoxAttr.EqPartial(attr.m_textBoxAttr, weakTest);
12004 }
12005
12006 // Merges the given attributes. If compareWith
12007 // is non-NULL, then it will be used to mask out those attributes that are the same in style
12008 // and compareWith, for situations where we don't want to explicitly set inherited attributes.
12009 bool wxRichTextAttr::Apply(const wxRichTextAttr& style, const wxRichTextAttr* compareWith)
12010 {
12011     wxTextAttr::Apply(style, compareWith);
12012
12013     return m_textBoxAttr.Apply(style.m_textBoxAttr, compareWith ? (& compareWith->m_textBoxAttr) : (const wxTextBoxAttr*) NULL);
12014 }
12015
12016 // Remove specified attributes from this object
12017 bool wxRichTextAttr::RemoveStyle(const wxRichTextAttr& attr)
12018 {
12019     wxTextAttr::RemoveStyle(*this, attr);
12020
12021     return m_textBoxAttr.RemoveStyle(attr.m_textBoxAttr);
12022 }
12023
12024 // Collects the attributes that are common to a range of content, building up a note of
12025 // which attributes are absent in some objects and which clash in some objects.
12026 void wxRichTextAttr::CollectCommonAttributes(const wxRichTextAttr& attr, wxRichTextAttr& clashingAttr, wxRichTextAttr& absentAttr)
12027 {
12028     wxTextAttrCollectCommonAttributes(*this, attr, clashingAttr, absentAttr);
12029
12030     m_textBoxAttr.CollectCommonAttributes(attr.m_textBoxAttr, clashingAttr.m_textBoxAttr, absentAttr.m_textBoxAttr);
12031 }
12032
12033 // Partial equality test
12034 bool wxTextAttrBorder::EqPartial(const wxTextAttrBorder& border, bool weakTest) const
12035 {
12036     if (!weakTest &&
12037         ((!HasStyle() && border.HasStyle()) ||
12038          (!HasColour() && border.HasColour()) ||
12039          (!HasWidth() && border.HasWidth())))
12040     {
12041         return false;
12042     }
12043
12044     if (border.HasStyle() && HasStyle() && (border.GetStyle() != GetStyle()))
12045         return false;
12046
12047     if (border.HasColour() && HasColour() && (border.GetColourLong() != GetColourLong()))
12048         return false;
12049
12050     if (border.HasWidth() && HasWidth() && !(border.GetWidth() == GetWidth()))
12051         return false;
12052
12053     return true;
12054 }
12055
12056 // Apply border to 'this', but not if the same as compareWith
12057 bool wxTextAttrBorder::Apply(const wxTextAttrBorder& border, const wxTextAttrBorder* compareWith)
12058 {
12059     if (border.HasStyle())
12060     {
12061         if (!(compareWith && (border.GetStyle() == compareWith->GetStyle())))
12062             SetStyle(border.GetStyle());
12063     }
12064     if (border.HasColour())
12065     {
12066         if (!(compareWith && (border.GetColourLong() == compareWith->GetColourLong())))
12067             SetColour(border.GetColourLong());
12068     }
12069     if (border.HasWidth())
12070     {
12071         if (!(compareWith && (border.GetWidth() == compareWith->GetWidth())))
12072             SetWidth(border.GetWidth());
12073     }
12074
12075     return true;
12076 }
12077
12078 // Remove specified attributes from this object
12079 bool wxTextAttrBorder::RemoveStyle(const wxTextAttrBorder& attr)
12080 {
12081     if (attr.HasStyle() && HasStyle())
12082         SetFlags(GetFlags() & ~wxTEXT_BOX_ATTR_BORDER_STYLE);
12083     if (attr.HasColour() && HasColour())
12084         SetFlags(GetFlags() & ~wxTEXT_BOX_ATTR_BORDER_COLOUR);
12085     if (attr.HasWidth() && HasWidth())
12086         m_borderWidth.Reset();
12087
12088     return true;
12089 }
12090
12091 // Collects the attributes that are common to a range of content, building up a note of
12092 // which attributes are absent in some objects and which clash in some objects.
12093 void wxTextAttrBorder::CollectCommonAttributes(const wxTextAttrBorder& attr, wxTextAttrBorder& clashingAttr, wxTextAttrBorder& absentAttr)
12094 {
12095     if (attr.HasStyle())
12096     {
12097         if (!clashingAttr.HasStyle() && !absentAttr.HasStyle())
12098         {
12099             if (HasStyle())
12100             {
12101                 if (GetStyle() != attr.GetStyle())
12102                 {
12103                     clashingAttr.AddFlag(wxTEXT_BOX_ATTR_BORDER_STYLE);
12104                     RemoveFlag(wxTEXT_BOX_ATTR_BORDER_STYLE);
12105                 }
12106             }
12107             else
12108                 SetStyle(attr.GetStyle());
12109         }
12110     }
12111     else
12112         absentAttr.AddFlag(wxTEXT_BOX_ATTR_BORDER_STYLE);
12113
12114     if (attr.HasColour())
12115     {
12116         if (!clashingAttr.HasColour() && !absentAttr.HasColour())
12117         {
12118             if (HasColour())
12119             {
12120                 if (GetColour() != attr.GetColour())
12121                 {
12122                     clashingAttr.AddFlag(wxTEXT_BOX_ATTR_BORDER_COLOUR);
12123                     RemoveFlag(wxTEXT_BOX_ATTR_BORDER_COLOUR);
12124                 }
12125             }
12126             else
12127                 SetColour(attr.GetColourLong());
12128         }
12129     }
12130     else
12131         absentAttr.AddFlag(wxTEXT_BOX_ATTR_BORDER_COLOUR);
12132
12133     m_borderWidth.CollectCommonAttributes(attr.m_borderWidth, clashingAttr.m_borderWidth, absentAttr.m_borderWidth);
12134 }
12135
12136 // Partial equality test
12137 bool wxTextAttrBorders::EqPartial(const wxTextAttrBorders& borders, bool weakTest) const
12138 {
12139     return m_left.EqPartial(borders.m_left, weakTest) && m_right.EqPartial(borders.m_right, weakTest) &&
12140             m_top.EqPartial(borders.m_top, weakTest) && m_bottom.EqPartial(borders.m_bottom, weakTest);
12141 }
12142
12143 // Apply border to 'this', but not if the same as compareWith
12144 bool wxTextAttrBorders::Apply(const wxTextAttrBorders& borders, const wxTextAttrBorders* compareWith)
12145 {
12146     m_left.Apply(borders.m_left, compareWith ? (& compareWith->m_left) : (const wxTextAttrBorder*) NULL);
12147     m_right.Apply(borders.m_right, compareWith ? (& compareWith->m_right) : (const wxTextAttrBorder*) NULL);
12148     m_top.Apply(borders.m_top, compareWith ? (& compareWith->m_top) : (const wxTextAttrBorder*) NULL);
12149     m_bottom.Apply(borders.m_bottom, compareWith ? (& compareWith->m_bottom) : (const wxTextAttrBorder*) NULL);
12150     return true;
12151 }
12152
12153 // Remove specified attributes from this object
12154 bool wxTextAttrBorders::RemoveStyle(const wxTextAttrBorders& attr)
12155 {
12156     m_left.RemoveStyle(attr.m_left);
12157     m_right.RemoveStyle(attr.m_right);
12158     m_top.RemoveStyle(attr.m_top);
12159     m_bottom.RemoveStyle(attr.m_bottom);
12160     return true;
12161 }
12162
12163 // Collects the attributes that are common to a range of content, building up a note of
12164 // which attributes are absent in some objects and which clash in some objects.
12165 void wxTextAttrBorders::CollectCommonAttributes(const wxTextAttrBorders& attr, wxTextAttrBorders& clashingAttr, wxTextAttrBorders& absentAttr)
12166 {
12167     m_left.CollectCommonAttributes(attr.m_left, clashingAttr.m_left, absentAttr.m_left);
12168     m_right.CollectCommonAttributes(attr.m_right, clashingAttr.m_right, absentAttr.m_right);
12169     m_top.CollectCommonAttributes(attr.m_top, clashingAttr.m_top, absentAttr.m_top);
12170     m_bottom.CollectCommonAttributes(attr.m_bottom, clashingAttr.m_bottom, absentAttr.m_bottom);
12171 }
12172
12173 // Set style of all borders
12174 void wxTextAttrBorders::SetStyle(int style)
12175 {
12176     m_left.SetStyle(style);
12177     m_right.SetStyle(style);
12178     m_top.SetStyle(style);
12179     m_bottom.SetStyle(style);
12180 }
12181
12182 // Set colour of all borders
12183 void wxTextAttrBorders::SetColour(unsigned long colour)
12184 {
12185     m_left.SetColour(colour);
12186     m_right.SetColour(colour);
12187     m_top.SetColour(colour);
12188     m_bottom.SetColour(colour);
12189 }
12190
12191 void wxTextAttrBorders::SetColour(const wxColour& colour)
12192 {
12193     m_left.SetColour(colour);
12194     m_right.SetColour(colour);
12195     m_top.SetColour(colour);
12196     m_bottom.SetColour(colour);
12197 }
12198
12199 // Set width of all borders
12200 void wxTextAttrBorders::SetWidth(const wxTextAttrDimension& width)
12201 {
12202     m_left.SetWidth(width);
12203     m_right.SetWidth(width);
12204     m_top.SetWidth(width);
12205     m_bottom.SetWidth(width);
12206 }
12207
12208 // Partial equality test
12209 bool wxTextAttrDimension::EqPartial(const wxTextAttrDimension& dim, bool weakTest) const
12210 {
12211     if (!weakTest && !IsValid() && dim.IsValid())
12212         return false;
12213
12214     if (dim.IsValid() && IsValid() && !((*this) == dim))
12215         return false;
12216     else
12217         return true;
12218 }
12219
12220 bool wxTextAttrDimension::Apply(const wxTextAttrDimension& dim, const wxTextAttrDimension* compareWith)
12221 {
12222     if (dim.IsValid())
12223     {
12224         if (!(compareWith && dim == (*compareWith)))
12225             (*this) = dim;
12226     }
12227
12228     return true;
12229 }
12230
12231 // Collects the attributes that are common to a range of content, building up a note of
12232 // which attributes are absent in some objects and which clash in some objects.
12233 void wxTextAttrDimension::CollectCommonAttributes(const wxTextAttrDimension& attr, wxTextAttrDimension& clashingAttr, wxTextAttrDimension& absentAttr)
12234 {
12235     if (attr.IsValid())
12236     {
12237         if (!clashingAttr.IsValid() && !absentAttr.IsValid())
12238         {
12239             if (IsValid())
12240             {
12241                 if (!((*this) == attr))
12242                 {
12243                     clashingAttr.SetValid(true);
12244                     SetValid(false);
12245                 }
12246             }
12247             else
12248                 (*this) = attr;
12249         }
12250     }
12251     else
12252         absentAttr.SetValid(true);
12253 }
12254
12255 wxTextAttrDimensionConverter::wxTextAttrDimensionConverter(wxDC& dc, double scale, const wxSize& parentSize)
12256 {
12257     m_ppi = dc.GetPPI().x; m_scale = scale; m_parentSize = parentSize;
12258 }
12259
12260 wxTextAttrDimensionConverter::wxTextAttrDimensionConverter(int ppi, double scale, const wxSize& parentSize)
12261 {
12262     m_ppi = ppi; m_scale = scale; m_parentSize = parentSize;
12263 }
12264
12265 int wxTextAttrDimensionConverter::ConvertTenthsMMToPixels(int units) const
12266 {
12267     return wxRichTextObject::ConvertTenthsMMToPixels(m_ppi, units, m_scale);
12268 }
12269
12270 int wxTextAttrDimensionConverter::ConvertPixelsToTenthsMM(int pixels) const
12271 {
12272     return wxRichTextObject::ConvertPixelsToTenthsMM(m_ppi, pixels, m_scale);
12273 }
12274
12275 int wxTextAttrDimensionConverter::GetPixels(const wxTextAttrDimension& dim, int direction) const
12276 {
12277     if (dim.GetUnits() == wxTEXT_ATTR_UNITS_TENTHS_MM)
12278         return ConvertTenthsMMToPixels(dim.GetValue());
12279     else if (dim.GetUnits() == wxTEXT_ATTR_UNITS_PIXELS)
12280         return dim.GetValue();
12281     else if (dim.GetUnits() == wxTEXT_ATTR_UNITS_PERCENTAGE)
12282     {
12283         wxASSERT(m_parentSize != wxDefaultSize);
12284         if (direction == wxHORIZONTAL)
12285             return (int) (double(m_parentSize.x) * double(dim.GetValue()) / 100.0);
12286         else
12287             return (int) (double(m_parentSize.y) * double(dim.GetValue()) / 100.0);
12288     }
12289     else
12290     {
12291         wxASSERT(false);
12292         return 0;
12293     }
12294 }
12295
12296 int wxTextAttrDimensionConverter::GetTenthsMM(const wxTextAttrDimension& dim) const
12297 {
12298     if (dim.GetUnits() == wxTEXT_ATTR_UNITS_TENTHS_MM)
12299         return dim.GetValue();
12300     else if (dim.GetUnits() == wxTEXT_ATTR_UNITS_PIXELS)
12301         return ConvertPixelsToTenthsMM(dim.GetValue());
12302     else
12303     {
12304         wxASSERT(false);
12305         return 0;
12306     }
12307 }
12308
12309 // Partial equality test
12310 bool wxTextAttrDimensions::EqPartial(const wxTextAttrDimensions& dims, bool weakTest) const
12311 {
12312     if (!m_left.EqPartial(dims.m_left, weakTest))
12313         return false;
12314
12315     if (!m_right.EqPartial(dims.m_right, weakTest))
12316         return false;
12317
12318     if (!m_top.EqPartial(dims.m_top, weakTest))
12319         return false;
12320
12321     if (!m_bottom.EqPartial(dims.m_bottom, weakTest))
12322         return false;
12323
12324     return true;
12325 }
12326
12327 // Apply border to 'this', but not if the same as compareWith
12328 bool wxTextAttrDimensions::Apply(const wxTextAttrDimensions& dims, const wxTextAttrDimensions* compareWith)
12329 {
12330     m_left.Apply(dims.m_left, compareWith ? (& compareWith->m_left) : (const wxTextAttrDimension*) NULL);
12331     m_right.Apply(dims.m_right, compareWith ? (& compareWith->m_right): (const wxTextAttrDimension*) NULL);
12332     m_top.Apply(dims.m_top, compareWith ? (& compareWith->m_top): (const wxTextAttrDimension*) NULL);
12333     m_bottom.Apply(dims.m_bottom, compareWith ? (& compareWith->m_bottom): (const wxTextAttrDimension*) NULL);
12334
12335     return true;
12336 }
12337
12338 // Remove specified attributes from this object
12339 bool wxTextAttrDimensions::RemoveStyle(const wxTextAttrDimensions& attr)
12340 {
12341     if (attr.m_left.IsValid())
12342         m_left.Reset();
12343     if (attr.m_right.IsValid())
12344         m_right.Reset();
12345     if (attr.m_top.IsValid())
12346         m_top.Reset();
12347     if (attr.m_bottom.IsValid())
12348         m_bottom.Reset();
12349
12350     return true;
12351 }
12352
12353 // Collects the attributes that are common to a range of content, building up a note of
12354 // which attributes are absent in some objects and which clash in some objects.
12355 void wxTextAttrDimensions::CollectCommonAttributes(const wxTextAttrDimensions& attr, wxTextAttrDimensions& clashingAttr, wxTextAttrDimensions& absentAttr)
12356 {
12357     m_left.CollectCommonAttributes(attr.m_left, clashingAttr.m_left, absentAttr.m_left);
12358     m_right.CollectCommonAttributes(attr.m_right, clashingAttr.m_right, absentAttr.m_right);
12359     m_top.CollectCommonAttributes(attr.m_top, clashingAttr.m_top, absentAttr.m_top);
12360     m_bottom.CollectCommonAttributes(attr.m_bottom, clashingAttr.m_bottom, absentAttr.m_bottom);
12361 }
12362
12363 // Partial equality test
12364 bool wxTextAttrSize::EqPartial(const wxTextAttrSize& size, bool weakTest) const
12365 {
12366     if (!m_width.EqPartial(size.m_width, weakTest))
12367         return false;
12368
12369     if (!m_height.EqPartial(size.m_height, weakTest))
12370         return false;
12371
12372     return true;
12373 }
12374
12375 // Apply border to 'this', but not if the same as compareWith
12376 bool wxTextAttrSize::Apply(const wxTextAttrSize& size, const wxTextAttrSize* compareWith)
12377 {
12378     m_width.Apply(size.m_width, compareWith ? (& compareWith->m_width) : (const wxTextAttrDimension*) NULL);
12379     m_height.Apply(size.m_height, compareWith ? (& compareWith->m_height): (const wxTextAttrDimension*) NULL);
12380
12381     return true;
12382 }
12383
12384 // Remove specified attributes from this object
12385 bool wxTextAttrSize::RemoveStyle(const wxTextAttrSize& attr)
12386 {
12387     if (attr.m_width.IsValid())
12388         m_width.Reset();
12389     if (attr.m_height.IsValid())
12390         m_height.Reset();
12391
12392     return true;
12393 }
12394
12395 // Collects the attributes that are common to a range of content, building up a note of
12396 // which attributes are absent in some objects and which clash in some objects.
12397 void wxTextAttrSize::CollectCommonAttributes(const wxTextAttrSize& attr, wxTextAttrSize& clashingAttr, wxTextAttrSize& absentAttr)
12398 {
12399     m_width.CollectCommonAttributes(attr.m_width, clashingAttr.m_width, absentAttr.m_width);
12400     m_height.CollectCommonAttributes(attr.m_height, clashingAttr.m_height, absentAttr.m_height);
12401 }
12402
12403 // Collects the attributes that are common to a range of content, building up a note of
12404 // which attributes are absent in some objects and which clash in some objects.
12405 void wxTextAttrCollectCommonAttributes(wxTextAttr& currentStyle, const wxTextAttr& attr, wxTextAttr& clashingAttr, wxTextAttr& absentAttr)
12406 {
12407     absentAttr.SetFlags(absentAttr.GetFlags() | (~attr.GetFlags() & wxTEXT_ATTR_ALL));
12408     absentAttr.SetTextEffectFlags(absentAttr.GetTextEffectFlags() | (~attr.GetTextEffectFlags() & 0xFFFF));
12409
12410     long forbiddenFlags = clashingAttr.GetFlags()|absentAttr.GetFlags();
12411
12412     if (attr.HasFont())
12413     {
12414         // If different font size units are being used, this is a clash.
12415         if (((attr.GetFlags() & wxTEXT_ATTR_FONT_SIZE) | (currentStyle.GetFlags() & wxTEXT_ATTR_FONT_SIZE)) == wxTEXT_ATTR_FONT_SIZE)
12416         {
12417             currentStyle.SetFontSize(0);
12418             currentStyle.RemoveFlag(wxTEXT_ATTR_FONT_SIZE);
12419             clashingAttr.AddFlag(wxTEXT_ATTR_FONT_SIZE);
12420         }
12421         else
12422         {
12423             if (attr.HasFontPointSize() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_FONT_POINT_SIZE))
12424             {
12425                 if (currentStyle.HasFontPointSize())
12426                 {
12427                     if (currentStyle.GetFontSize() != attr.GetFontSize())
12428                     {
12429                         // Clash of attr - mark as such
12430                         clashingAttr.AddFlag(wxTEXT_ATTR_FONT_POINT_SIZE);
12431                         currentStyle.RemoveFlag(wxTEXT_ATTR_FONT_POINT_SIZE);
12432                     }
12433                 }
12434                 else
12435                     currentStyle.SetFontSize(attr.GetFontSize());
12436             }
12437
12438             if (attr.HasFontPixelSize() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_FONT_PIXEL_SIZE))
12439             {
12440                 if (currentStyle.HasFontPixelSize())
12441                 {
12442                     if (currentStyle.GetFontSize() != attr.GetFontSize())
12443                     {
12444                         // Clash of attr - mark as such
12445                         clashingAttr.AddFlag(wxTEXT_ATTR_FONT_PIXEL_SIZE);
12446                         currentStyle.RemoveFlag(wxTEXT_ATTR_FONT_PIXEL_SIZE);
12447                     }
12448                 }
12449                 else
12450                     currentStyle.SetFontPixelSize(attr.GetFontSize());
12451             }
12452         }
12453
12454         if (attr.HasFontItalic() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_FONT_ITALIC))
12455         {
12456             if (currentStyle.HasFontItalic())
12457             {
12458                 if (currentStyle.GetFontStyle() != attr.GetFontStyle())
12459                 {
12460                     // Clash of attr - mark as such
12461                     clashingAttr.AddFlag(wxTEXT_ATTR_FONT_ITALIC);
12462                     currentStyle.RemoveFlag(wxTEXT_ATTR_FONT_ITALIC);
12463                 }
12464             }
12465             else
12466                 currentStyle.SetFontStyle(attr.GetFontStyle());
12467         }
12468
12469         if (attr.HasFontFamily() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_FONT_FAMILY))
12470         {
12471             if (currentStyle.HasFontFamily())
12472             {
12473                 if (currentStyle.GetFontFamily() != attr.GetFontFamily())
12474                 {
12475                     // Clash of attr - mark as such
12476                     clashingAttr.AddFlag(wxTEXT_ATTR_FONT_FAMILY);
12477                     currentStyle.RemoveFlag(wxTEXT_ATTR_FONT_FAMILY);
12478                 }
12479             }
12480             else
12481                 currentStyle.SetFontFamily(attr.GetFontFamily());
12482         }
12483
12484         if (attr.HasFontWeight() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_FONT_WEIGHT))
12485         {
12486             if (currentStyle.HasFontWeight())
12487             {
12488                 if (currentStyle.GetFontWeight() != attr.GetFontWeight())
12489                 {
12490                     // Clash of attr - mark as such
12491                     clashingAttr.AddFlag(wxTEXT_ATTR_FONT_WEIGHT);
12492                     currentStyle.RemoveFlag(wxTEXT_ATTR_FONT_WEIGHT);
12493                 }
12494             }
12495             else
12496                 currentStyle.SetFontWeight(attr.GetFontWeight());
12497         }
12498
12499         if (attr.HasFontFaceName() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_FONT_FACE))
12500         {
12501             if (currentStyle.HasFontFaceName())
12502             {
12503                 wxString faceName1(currentStyle.GetFontFaceName());
12504                 wxString faceName2(attr.GetFontFaceName());
12505
12506                 if (faceName1 != faceName2)
12507                 {
12508                     // Clash of attr - mark as such
12509                     clashingAttr.AddFlag(wxTEXT_ATTR_FONT_FACE);
12510                     currentStyle.RemoveFlag(wxTEXT_ATTR_FONT_FACE);
12511                 }
12512             }
12513             else
12514                 currentStyle.SetFontFaceName(attr.GetFontFaceName());
12515         }
12516
12517         if (attr.HasFontUnderlined() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_FONT_UNDERLINE))
12518         {
12519             if (currentStyle.HasFontUnderlined())
12520             {
12521                 if (currentStyle.GetFontUnderlined() != attr.GetFontUnderlined())
12522                 {
12523                     // Clash of attr - mark as such
12524                     clashingAttr.AddFlag(wxTEXT_ATTR_FONT_UNDERLINE);
12525                     currentStyle.RemoveFlag(wxTEXT_ATTR_FONT_UNDERLINE);
12526                 }
12527             }
12528             else
12529                 currentStyle.SetFontUnderlined(attr.GetFontUnderlined());
12530         }
12531
12532         if (attr.HasFontStrikethrough() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_FONT_STRIKETHROUGH))
12533         {
12534             if (currentStyle.HasFontStrikethrough())
12535             {
12536                 if (currentStyle.GetFontStrikethrough() != attr.GetFontStrikethrough())
12537                 {
12538                     // Clash of attr - mark as such
12539                     clashingAttr.AddFlag(wxTEXT_ATTR_FONT_STRIKETHROUGH);
12540                     currentStyle.RemoveFlag(wxTEXT_ATTR_FONT_STRIKETHROUGH);
12541                 }
12542             }
12543             else
12544                 currentStyle.SetFontStrikethrough(attr.GetFontStrikethrough());
12545         }
12546     }
12547
12548     if (attr.HasTextColour() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_TEXT_COLOUR))
12549     {
12550         if (currentStyle.HasTextColour())
12551         {
12552             if (currentStyle.GetTextColour() != attr.GetTextColour())
12553             {
12554                 // Clash of attr - mark as such
12555                 clashingAttr.AddFlag(wxTEXT_ATTR_TEXT_COLOUR);
12556                 currentStyle.RemoveFlag(wxTEXT_ATTR_TEXT_COLOUR);
12557             }
12558         }
12559         else
12560             currentStyle.SetTextColour(attr.GetTextColour());
12561     }
12562
12563     if (attr.HasBackgroundColour() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_BACKGROUND_COLOUR))
12564     {
12565         if (currentStyle.HasBackgroundColour())
12566         {
12567             if (currentStyle.GetBackgroundColour() != attr.GetBackgroundColour())
12568             {
12569                 // Clash of attr - mark as such
12570                 clashingAttr.AddFlag(wxTEXT_ATTR_BACKGROUND_COLOUR);
12571                 currentStyle.RemoveFlag(wxTEXT_ATTR_BACKGROUND_COLOUR);
12572             }
12573         }
12574         else
12575             currentStyle.SetBackgroundColour(attr.GetBackgroundColour());
12576     }
12577
12578     if (attr.HasAlignment() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_ALIGNMENT))
12579     {
12580         if (currentStyle.HasAlignment())
12581         {
12582             if (currentStyle.GetAlignment() != attr.GetAlignment())
12583             {
12584                 // Clash of attr - mark as such
12585                 clashingAttr.AddFlag(wxTEXT_ATTR_ALIGNMENT);
12586                 currentStyle.RemoveFlag(wxTEXT_ATTR_ALIGNMENT);
12587             }
12588         }
12589         else
12590             currentStyle.SetAlignment(attr.GetAlignment());
12591     }
12592
12593     if (attr.HasTabs() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_TABS))
12594     {
12595         if (currentStyle.HasTabs())
12596         {
12597             if (!wxRichTextTabsEq(currentStyle.GetTabs(), attr.GetTabs()))
12598             {
12599                 // Clash of attr - mark as such
12600                 clashingAttr.AddFlag(wxTEXT_ATTR_TABS);
12601                 currentStyle.RemoveFlag(wxTEXT_ATTR_TABS);
12602             }
12603         }
12604         else
12605             currentStyle.SetTabs(attr.GetTabs());
12606     }
12607
12608     if (attr.HasLeftIndent() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_LEFT_INDENT))
12609     {
12610         if (currentStyle.HasLeftIndent())
12611         {
12612             if (currentStyle.GetLeftIndent() != attr.GetLeftIndent() || currentStyle.GetLeftSubIndent() != attr.GetLeftSubIndent())
12613             {
12614                 // Clash of attr - mark as such
12615                 clashingAttr.AddFlag(wxTEXT_ATTR_LEFT_INDENT);
12616                 currentStyle.RemoveFlag(wxTEXT_ATTR_LEFT_INDENT);
12617             }
12618         }
12619         else
12620             currentStyle.SetLeftIndent(attr.GetLeftIndent(), attr.GetLeftSubIndent());
12621     }
12622
12623     if (attr.HasRightIndent() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_RIGHT_INDENT))
12624     {
12625         if (currentStyle.HasRightIndent())
12626         {
12627             if (currentStyle.GetRightIndent() != attr.GetRightIndent())
12628             {
12629                 // Clash of attr - mark as such
12630                 clashingAttr.AddFlag(wxTEXT_ATTR_RIGHT_INDENT);
12631                 currentStyle.RemoveFlag(wxTEXT_ATTR_RIGHT_INDENT);
12632             }
12633         }
12634         else
12635             currentStyle.SetRightIndent(attr.GetRightIndent());
12636     }
12637
12638     if (attr.HasParagraphSpacingAfter() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_PARA_SPACING_AFTER))
12639     {
12640         if (currentStyle.HasParagraphSpacingAfter())
12641         {
12642             if (currentStyle.GetParagraphSpacingAfter() != attr.GetParagraphSpacingAfter())
12643             {
12644                 // Clash of attr - mark as such
12645                 clashingAttr.AddFlag(wxTEXT_ATTR_PARA_SPACING_AFTER);
12646                 currentStyle.RemoveFlag(wxTEXT_ATTR_PARA_SPACING_AFTER);
12647             }
12648         }
12649         else
12650             currentStyle.SetParagraphSpacingAfter(attr.GetParagraphSpacingAfter());
12651     }
12652
12653     if (attr.HasParagraphSpacingBefore() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_PARA_SPACING_BEFORE))
12654     {
12655         if (currentStyle.HasParagraphSpacingBefore())
12656         {
12657             if (currentStyle.GetParagraphSpacingBefore() != attr.GetParagraphSpacingBefore())
12658             {
12659                 // Clash of attr - mark as such
12660                 clashingAttr.AddFlag(wxTEXT_ATTR_PARA_SPACING_BEFORE);
12661                 currentStyle.RemoveFlag(wxTEXT_ATTR_PARA_SPACING_BEFORE);
12662             }
12663         }
12664         else
12665             currentStyle.SetParagraphSpacingBefore(attr.GetParagraphSpacingBefore());
12666     }
12667
12668     if (attr.HasLineSpacing() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_LINE_SPACING))
12669     {
12670         if (currentStyle.HasLineSpacing())
12671         {
12672             if (currentStyle.GetLineSpacing() != attr.GetLineSpacing())
12673             {
12674                 // Clash of attr - mark as such
12675                 clashingAttr.AddFlag(wxTEXT_ATTR_LINE_SPACING);
12676                 currentStyle.RemoveFlag(wxTEXT_ATTR_LINE_SPACING);
12677             }
12678         }
12679         else
12680             currentStyle.SetLineSpacing(attr.GetLineSpacing());
12681     }
12682
12683     if (attr.HasCharacterStyleName() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_CHARACTER_STYLE_NAME))
12684     {
12685         if (currentStyle.HasCharacterStyleName())
12686         {
12687             if (currentStyle.GetCharacterStyleName() != attr.GetCharacterStyleName())
12688             {
12689                 // Clash of attr - mark as such
12690                 clashingAttr.AddFlag(wxTEXT_ATTR_CHARACTER_STYLE_NAME);
12691                 currentStyle.RemoveFlag(wxTEXT_ATTR_CHARACTER_STYLE_NAME);
12692             }
12693         }
12694         else
12695             currentStyle.SetCharacterStyleName(attr.GetCharacterStyleName());
12696     }
12697
12698     if (attr.HasParagraphStyleName() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_PARAGRAPH_STYLE_NAME))
12699     {
12700         if (currentStyle.HasParagraphStyleName())
12701         {
12702             if (currentStyle.GetParagraphStyleName() != attr.GetParagraphStyleName())
12703             {
12704                 // Clash of attr - mark as such
12705                 clashingAttr.AddFlag(wxTEXT_ATTR_PARAGRAPH_STYLE_NAME);
12706                 currentStyle.RemoveFlag(wxTEXT_ATTR_PARAGRAPH_STYLE_NAME);
12707             }
12708         }
12709         else
12710             currentStyle.SetParagraphStyleName(attr.GetParagraphStyleName());
12711     }
12712
12713     if (attr.HasListStyleName() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_LIST_STYLE_NAME))
12714     {
12715         if (currentStyle.HasListStyleName())
12716         {
12717             if (currentStyle.GetListStyleName() != attr.GetListStyleName())
12718             {
12719                 // Clash of attr - mark as such
12720                 clashingAttr.AddFlag(wxTEXT_ATTR_LIST_STYLE_NAME);
12721                 currentStyle.RemoveFlag(wxTEXT_ATTR_LIST_STYLE_NAME);
12722             }
12723         }
12724         else
12725             currentStyle.SetListStyleName(attr.GetListStyleName());
12726     }
12727
12728     if (attr.HasBulletStyle() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_BULLET_STYLE))
12729     {
12730         if (currentStyle.HasBulletStyle())
12731         {
12732             if (currentStyle.GetBulletStyle() != attr.GetBulletStyle())
12733             {
12734                 // Clash of attr - mark as such
12735                 clashingAttr.AddFlag(wxTEXT_ATTR_BULLET_STYLE);
12736                 currentStyle.RemoveFlag(wxTEXT_ATTR_BULLET_STYLE);
12737             }
12738         }
12739         else
12740             currentStyle.SetBulletStyle(attr.GetBulletStyle());
12741     }
12742
12743     if (attr.HasBulletNumber() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_BULLET_NUMBER))
12744     {
12745         if (currentStyle.HasBulletNumber())
12746         {
12747             if (currentStyle.GetBulletNumber() != attr.GetBulletNumber())
12748             {
12749                 // Clash of attr - mark as such
12750                 clashingAttr.AddFlag(wxTEXT_ATTR_BULLET_NUMBER);
12751                 currentStyle.RemoveFlag(wxTEXT_ATTR_BULLET_NUMBER);
12752             }
12753         }
12754         else
12755             currentStyle.SetBulletNumber(attr.GetBulletNumber());
12756     }
12757
12758     if (attr.HasBulletText() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_BULLET_TEXT))
12759     {
12760         if (currentStyle.HasBulletText())
12761         {
12762             if (currentStyle.GetBulletText() != attr.GetBulletText())
12763             {
12764                 // Clash of attr - mark as such
12765                 clashingAttr.AddFlag(wxTEXT_ATTR_BULLET_TEXT);
12766                 currentStyle.RemoveFlag(wxTEXT_ATTR_BULLET_TEXT);
12767             }
12768         }
12769         else
12770         {
12771             currentStyle.SetBulletText(attr.GetBulletText());
12772             currentStyle.SetBulletFont(attr.GetBulletFont());
12773         }
12774     }
12775
12776     if (attr.HasBulletName() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_BULLET_NAME))
12777     {
12778         if (currentStyle.HasBulletName())
12779         {
12780             if (currentStyle.GetBulletName() != attr.GetBulletName())
12781             {
12782                 // Clash of attr - mark as such
12783                 clashingAttr.AddFlag(wxTEXT_ATTR_BULLET_NAME);
12784                 currentStyle.RemoveFlag(wxTEXT_ATTR_BULLET_NAME);
12785             }
12786         }
12787         else
12788         {
12789             currentStyle.SetBulletName(attr.GetBulletName());
12790         }
12791     }
12792
12793     if (attr.HasURL() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_URL))
12794     {
12795         if (currentStyle.HasURL())
12796         {
12797             if (currentStyle.GetURL() != attr.GetURL())
12798             {
12799                 // Clash of attr - mark as such
12800                 clashingAttr.AddFlag(wxTEXT_ATTR_URL);
12801                 currentStyle.RemoveFlag(wxTEXT_ATTR_URL);
12802             }
12803         }
12804         else
12805         {
12806             currentStyle.SetURL(attr.GetURL());
12807         }
12808     }
12809
12810     if (attr.HasTextEffects() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_EFFECTS))
12811     {
12812         if (currentStyle.HasTextEffects())
12813         {
12814             // We need to find the bits in the new attr that are different:
12815             // just look at those bits that are specified by the new attr.
12816
12817             // We need to remove the bits and flags that are not common between current attr
12818             // and new attr. In so doing we need to take account of the styles absent from one or more of the
12819             // previous styles.
12820
12821             int currentRelevantTextEffects = currentStyle.GetTextEffects() & attr.GetTextEffectFlags();
12822             int newRelevantTextEffects = attr.GetTextEffects() & attr.GetTextEffectFlags();
12823
12824             if (currentRelevantTextEffects != newRelevantTextEffects)
12825             {
12826                 // Find the text effects that were different, using XOR
12827                 int differentEffects = currentRelevantTextEffects ^ newRelevantTextEffects;
12828
12829                 // Clash of attr - mark as such
12830                 clashingAttr.SetTextEffectFlags(clashingAttr.GetTextEffectFlags() | differentEffects);
12831                 currentStyle.SetTextEffectFlags(currentStyle.GetTextEffectFlags() & ~differentEffects);
12832             }
12833         }
12834         else
12835         {
12836             currentStyle.SetTextEffects(attr.GetTextEffects());
12837             currentStyle.SetTextEffectFlags(attr.GetTextEffectFlags());
12838         }
12839
12840         // Mask out the flags and values that cannot be common because they were absent in one or more objecrs
12841         // that we've looked at so far
12842         currentStyle.SetTextEffects(currentStyle.GetTextEffects() & ~absentAttr.GetTextEffectFlags());
12843         currentStyle.SetTextEffectFlags(currentStyle.GetTextEffectFlags() & ~absentAttr.GetTextEffectFlags());
12844
12845         if (currentStyle.GetTextEffectFlags() == 0)
12846             currentStyle.RemoveFlag(wxTEXT_ATTR_EFFECTS);
12847     }
12848
12849     if (attr.HasOutlineLevel() && !wxHasStyle(forbiddenFlags, wxTEXT_ATTR_OUTLINE_LEVEL))
12850     {
12851         if (currentStyle.HasOutlineLevel())
12852         {
12853             if (currentStyle.GetOutlineLevel() != attr.GetOutlineLevel())
12854             {
12855                 // Clash of attr - mark as such
12856                 clashingAttr.AddFlag(wxTEXT_ATTR_OUTLINE_LEVEL);
12857                 currentStyle.RemoveFlag(wxTEXT_ATTR_OUTLINE_LEVEL);
12858             }
12859         }
12860         else
12861             currentStyle.SetOutlineLevel(attr.GetOutlineLevel());
12862     }
12863 }
12864
12865 WX_DEFINE_OBJARRAY(wxRichTextVariantArray);
12866
12867 IMPLEMENT_DYNAMIC_CLASS(wxRichTextProperties, wxObject)
12868
12869 bool wxRichTextProperties::operator==(const wxRichTextProperties& props) const
12870 {
12871     if (m_properties.GetCount() != props.GetCount())
12872         return false;
12873
12874     size_t i;
12875     for (i = 0; i < m_properties.GetCount(); i++)
12876     {
12877         const wxVariant& var1 = m_properties[i];
12878         int idx = props.Find(var1.GetName());
12879         if (idx == -1)
12880             return false;
12881         const wxVariant& var2 = props.m_properties[idx];
12882         if (!(var1 == var2))
12883             return false;
12884     }
12885
12886     return true;
12887 }
12888
12889 wxArrayString wxRichTextProperties::GetPropertyNames() const
12890 {
12891     wxArrayString arr;
12892     size_t i;
12893     for (i = 0; i < m_properties.GetCount(); i++)
12894     {
12895         arr.Add(m_properties[i].GetName());
12896     }
12897     return arr;
12898 }
12899
12900 int wxRichTextProperties::Find(const wxString& name) const
12901 {
12902     size_t i;
12903     for (i = 0; i < m_properties.GetCount(); i++)
12904     {
12905         if (m_properties[i].GetName() == name)
12906             return (int) i;
12907     }
12908     return -1;
12909 }
12910
12911 bool wxRichTextProperties::Remove(const wxString& name)
12912 {
12913     int idx = Find(name);
12914     if (idx != -1)
12915     {
12916         m_properties.RemoveAt(idx);
12917         return true;
12918     }
12919     else
12920         return false;
12921 }
12922
12923 wxVariant* wxRichTextProperties::FindOrCreateProperty(const wxString& name)
12924 {
12925     int idx = Find(name);
12926     if (idx == wxNOT_FOUND)
12927         SetProperty(name, wxString());
12928     idx = Find(name);
12929     if (idx != wxNOT_FOUND)
12930     {
12931         return & (*this)[idx];
12932     }
12933     else
12934         return NULL;
12935 }
12936
12937 const wxVariant& wxRichTextProperties::GetProperty(const wxString& name) const
12938 {
12939     static const wxVariant nullVariant;
12940     int idx = Find(name);
12941     if (idx != -1)
12942         return m_properties[idx];
12943     else
12944         return nullVariant;
12945 }
12946
12947 wxString wxRichTextProperties::GetPropertyString(const wxString& name) const
12948 {
12949     return GetProperty(name).GetString();
12950 }
12951
12952 long wxRichTextProperties::GetPropertyLong(const wxString& name) const
12953 {
12954     return GetProperty(name).GetLong();
12955 }
12956
12957 bool wxRichTextProperties::GetPropertyBool(const wxString& name) const
12958 {
12959     return GetProperty(name).GetBool();
12960 }
12961
12962 double wxRichTextProperties::GetPropertyDouble(const wxString& name) const
12963 {
12964     return GetProperty(name).GetDouble();
12965 }
12966
12967 void wxRichTextProperties::SetProperty(const wxVariant& variant)
12968 {
12969     wxASSERT(!variant.GetName().IsEmpty());
12970
12971     int idx = Find(variant.GetName());
12972
12973     if (idx == -1)
12974         m_properties.Add(variant);
12975     else
12976         m_properties[idx] = variant;
12977 }
12978
12979 void wxRichTextProperties::SetProperty(const wxString& name, const wxVariant& variant)
12980 {
12981     int idx = Find(name);
12982     wxVariant var(variant);
12983     var.SetName(name);
12984
12985     if (idx == -1)
12986         m_properties.Add(var);
12987     else
12988         m_properties[idx] = var;
12989 }
12990
12991 void wxRichTextProperties::SetProperty(const wxString& name, const wxString& value)
12992 {
12993     SetProperty(name, wxVariant(value, name));
12994 }
12995
12996 void wxRichTextProperties::SetProperty(const wxString& name, long value)
12997 {
12998     SetProperty(name, wxVariant(value, name));
12999 }
13000
13001 void wxRichTextProperties::SetProperty(const wxString& name, double value)
13002 {
13003     SetProperty(name, wxVariant(value, name));
13004 }
13005
13006 void wxRichTextProperties::SetProperty(const wxString& name, bool value)
13007 {
13008     SetProperty(name, wxVariant(value, name));
13009 }
13010
13011 void wxRichTextProperties::RemoveProperties(const wxRichTextProperties& properties)
13012 {
13013     size_t i;
13014     for (i = 0; i < properties.GetCount(); i++)
13015     {
13016         wxString name = properties.GetProperties()[i].GetName();
13017         if (HasProperty(name))
13018             Remove(name);
13019     }
13020 }
13021
13022 void wxRichTextProperties::MergeProperties(const wxRichTextProperties& properties)
13023 {
13024     size_t i;
13025     for (i = 0; i < properties.GetCount(); i++)
13026     {
13027         SetProperty(properties.GetProperties()[i]);
13028     }
13029 }
13030
13031 wxRichTextObject* wxRichTextObjectAddress::GetObject(wxRichTextParagraphLayoutBox* topLevelContainer) const
13032 {
13033     if (m_address.GetCount() == 0)
13034         return topLevelContainer;
13035
13036     wxRichTextCompositeObject* p = topLevelContainer;
13037     size_t i = 0;
13038     while (p && i < m_address.GetCount())
13039     {
13040         int pos = m_address[i];
13041         wxASSERT(pos >= 0 && pos < (int) p->GetChildren().GetCount());
13042         if (pos < 0 || pos >= (int) p->GetChildren().GetCount())
13043             return NULL;
13044
13045         wxRichTextObject* p1 = p->GetChild(pos);
13046         if (i == (m_address.GetCount()-1))
13047             return p1;
13048
13049         p = wxDynamicCast(p1, wxRichTextCompositeObject);
13050         i ++;
13051     }
13052     return NULL;
13053 }
13054
13055 bool wxRichTextObjectAddress::Create(wxRichTextParagraphLayoutBox* topLevelContainer, wxRichTextObject* obj)
13056 {
13057     m_address.Clear();
13058
13059     if (topLevelContainer == obj)
13060         return true;
13061
13062     wxRichTextObject* o = obj;
13063     while (o)
13064     {
13065         wxRichTextCompositeObject* p = wxDynamicCast(o->GetParent(), wxRichTextCompositeObject);
13066         if (!p)
13067             return false;
13068
13069         int pos = p->GetChildren().IndexOf(o);
13070         if (pos == -1)
13071             return false;
13072
13073         m_address.Insert(pos, 0);
13074
13075         if (p == topLevelContainer)
13076             return true;
13077
13078         o = p;
13079     }
13080     return false;
13081 }
13082
13083 // Equality test
13084 bool wxRichTextSelection::operator==(const wxRichTextSelection& sel) const
13085 {
13086     if (m_container != sel.m_container)
13087         return false;
13088     if (m_ranges.GetCount() != sel.m_ranges.GetCount())
13089         return false;
13090     size_t i;
13091     for (i = 0; i < m_ranges.GetCount(); i++)
13092         if (!(m_ranges[i] == sel.m_ranges[i]))
13093             return false;
13094     return true;
13095 }
13096
13097 // Get the selections appropriate to the specified object, if any; returns wxRICHTEXT_NO_SELECTION if none
13098 // or none at the level of the object's container.
13099 wxRichTextRangeArray wxRichTextSelection::GetSelectionForObject(wxRichTextObject* obj) const
13100 {
13101     if (IsValid())
13102     {
13103         wxRichTextParagraphLayoutBox* container = obj->GetParentContainer();
13104
13105         if (container == m_container)
13106             return m_ranges;
13107
13108         container = obj->GetContainer();
13109         while (container)
13110         {
13111             if (container->GetParent())
13112             {
13113                 // If we found that our object's container is within the range of
13114                 // a selection higher up, then assume the whole original object
13115                 // is also selected.
13116                 wxRichTextParagraphLayoutBox* parentContainer = container->GetParentContainer();
13117                 if (parentContainer == m_container)
13118                 {
13119                     if (WithinSelection(container->GetRange().GetStart(), m_ranges))
13120                     {
13121                         wxRichTextRangeArray ranges;
13122                         ranges.Add(obj->GetRange());
13123                         return ranges;
13124                     }
13125                 }
13126
13127                 container = parentContainer;
13128             }
13129             else
13130             {
13131                 container = NULL;
13132                 break;
13133             }
13134         }
13135     }
13136     return wxRichTextRangeArray();
13137 }
13138
13139 // Is the given position within the selection?
13140 bool wxRichTextSelection::WithinSelection(long pos, wxRichTextObject* obj) const
13141 {
13142     if (!IsValid())
13143         return false;
13144     else
13145     {
13146         wxRichTextRangeArray selectionRanges = GetSelectionForObject(obj);
13147         return WithinSelection(pos, selectionRanges);
13148     }
13149 }
13150
13151 // Is the given position within the selection range?
13152 bool wxRichTextSelection::WithinSelection(long pos, const wxRichTextRangeArray& ranges)
13153 {
13154     size_t i;
13155     for (i = 0; i < ranges.GetCount(); i++)
13156     {
13157         const wxRichTextRange& range = ranges[i];
13158         if (pos >= range.GetStart() && pos <= range.GetEnd())
13159             return true;
13160     }
13161     return false;
13162 }
13163
13164 // Is the given range completely within the selection range?
13165 bool wxRichTextSelection::WithinSelection(const wxRichTextRange& range, const wxRichTextRangeArray& ranges)
13166 {
13167     size_t i;
13168     for (i = 0; i < ranges.GetCount(); i++)
13169     {
13170         const wxRichTextRange& eachRange = ranges[i];
13171         if (range.IsWithin(eachRange))
13172             return true;
13173     }
13174     return false;
13175 }
13176
13177 IMPLEMENT_CLASS(wxRichTextDrawingHandler, wxObject)
13178 IMPLEMENT_CLASS(wxRichTextDrawingContext, wxObject)
13179
13180 bool wxRichTextDrawingContext::HasVirtualAttributes(wxRichTextObject* obj) const
13181 {
13182     wxList::compatibility_iterator node = m_buffer->GetDrawingHandlers().GetFirst();
13183     while (node)
13184     {
13185         wxRichTextDrawingHandler *handler = (wxRichTextDrawingHandler*)node->GetData();
13186         if (handler->HasVirtualAttributes(obj))
13187             return true;
13188
13189         node = node->GetNext();
13190     }
13191     return false;
13192 }
13193
13194 wxRichTextAttr wxRichTextDrawingContext::GetVirtualAttributes(wxRichTextObject* obj) const
13195 {
13196     wxRichTextAttr attr;
13197     // We apply all handlers, so we can may combine several different attributes
13198     wxList::compatibility_iterator node = m_buffer->GetDrawingHandlers().GetFirst();
13199     while (node)
13200     {
13201         wxRichTextDrawingHandler *handler = (wxRichTextDrawingHandler*)node->GetData();
13202         if (handler->HasVirtualAttributes(obj))
13203         {
13204             bool success = handler->GetVirtualAttributes(attr, obj);
13205             wxASSERT(success);
13206             wxUnusedVar(success);
13207         }
13208
13209         node = node->GetNext();
13210     }
13211     return attr;
13212 }
13213
13214 bool wxRichTextDrawingContext::ApplyVirtualAttributes(wxRichTextAttr& attr, wxRichTextObject* obj) const
13215 {
13216     if (HasVirtualAttributes(obj))
13217     {
13218         wxRichTextAttr a(GetVirtualAttributes(obj));
13219         attr.Apply(a);
13220         return true;
13221     }
13222     else
13223         return false;
13224 }
13225
13226 /// Adds a handler to the end
13227 void wxRichTextBuffer::AddDrawingHandler(wxRichTextDrawingHandler *handler)
13228 {
13229     sm_drawingHandlers.Append(handler);
13230 }
13231
13232 /// Inserts a handler at the front
13233 void wxRichTextBuffer::InsertDrawingHandler(wxRichTextDrawingHandler *handler)
13234 {
13235     sm_drawingHandlers.Insert( handler );
13236 }
13237
13238 /// Removes a handler
13239 bool wxRichTextBuffer::RemoveDrawingHandler(const wxString& name)
13240 {
13241     wxRichTextDrawingHandler *handler = FindDrawingHandler(name);
13242     if (handler)
13243     {
13244         sm_drawingHandlers.DeleteObject(handler);
13245         delete handler;
13246         return true;
13247     }
13248     else
13249         return false;
13250 }
13251
13252 wxRichTextDrawingHandler* wxRichTextBuffer::FindDrawingHandler(const wxString& name)
13253 {
13254     wxList::compatibility_iterator node = sm_drawingHandlers.GetFirst();
13255     while (node)
13256     {
13257         wxRichTextDrawingHandler *handler = (wxRichTextDrawingHandler*)node->GetData();
13258         if (handler->GetName().Lower() == name.Lower()) return handler;
13259
13260         node = node->GetNext();
13261     }
13262     return NULL;
13263 }
13264
13265 void wxRichTextBuffer::CleanUpDrawingHandlers()
13266 {
13267     wxList::compatibility_iterator node = sm_drawingHandlers.GetFirst();
13268     while (node)
13269     {
13270         wxRichTextDrawingHandler* handler = (wxRichTextDrawingHandler*)node->GetData();
13271         wxList::compatibility_iterator next = node->GetNext();
13272         delete handler;
13273         node = next;
13274     }
13275
13276     sm_drawingHandlers.Clear();
13277 }
13278
13279 void wxRichTextBuffer::AddFieldType(wxRichTextFieldType *fieldType)
13280 {
13281     sm_fieldTypes[fieldType->GetName()] = fieldType;
13282 }
13283
13284 bool wxRichTextBuffer::RemoveFieldType(const wxString& name)
13285 {
13286     wxRichTextFieldTypeHashMap::iterator it = sm_fieldTypes.find(name);
13287     if (it == sm_fieldTypes.end())
13288         return false;
13289     else
13290     {
13291         wxRichTextFieldType* fieldType = it->second;
13292         sm_fieldTypes.erase(it);
13293         delete fieldType;
13294         return true;
13295     }
13296 }
13297
13298 wxRichTextFieldType *wxRichTextBuffer::FindFieldType(const wxString& name)
13299 {
13300     wxRichTextFieldTypeHashMap::iterator it = sm_fieldTypes.find(name);
13301     if (it == sm_fieldTypes.end())
13302         return NULL;
13303     else
13304         return it->second;
13305 }
13306
13307 void wxRichTextBuffer::CleanUpFieldTypes()
13308 {
13309     wxRichTextFieldTypeHashMap::iterator it;
13310     for( it = sm_fieldTypes.begin(); it != sm_fieldTypes.end(); ++it )
13311     {
13312         wxRichTextFieldType* fieldType = it->second;
13313         delete fieldType;
13314     }
13315
13316     sm_fieldTypes.clear();
13317 }
13318
13319 #endif
13320     // wxUSE_RICHTEXT