src/richtext/richtextstyles.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/richtext/richtextstyles.cpp
   3 // Purpose:     Style management 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/richtextstyles.h"
  22
  23 #ifndef WX_PRECOMP
  24   #include "wx/wx.h"
  25 #endif
  26
  27 #include "wx/filename.h"
  28 #include "wx/clipbrd.h"
  29 #include "wx/wfstream.h"
  30 #include "wx/settings.h"
  31
  32 #include "wx/richtext/richtextctrl.h"
  33
  34 IMPLEMENT_CLASS(wxRichTextStyleDefinition, wxObject)
  35 IMPLEMENT_CLASS(wxRichTextCharacterStyleDefinition, wxRichTextStyleDefinition)
  36 IMPLEMENT_CLASS(wxRichTextParagraphStyleDefinition, wxRichTextStyleDefinition)
  37 IMPLEMENT_CLASS(wxRichTextListStyleDefinition, wxRichTextParagraphStyleDefinition)
  38
  39 /*!
  40  * A definition
  41  */
  42
  43 void wxRichTextStyleDefinition::Copy(const wxRichTextStyleDefinition& def)
  44 {
  45     m_name = def.m_name;
  46     m_baseStyle = def.m_baseStyle;
  47     m_style = def.m_style;
  48 }
  49
  50 bool wxRichTextStyleDefinition::Eq(const wxRichTextStyleDefinition& def) const
  51 {
  52     return (m_name == def.m_name && m_baseStyle == def.m_baseStyle && m_style == def.m_style);
  53 }
  54
  55 /*!
  56  * Paragraph style definition
  57  */
  58
  59 void wxRichTextParagraphStyleDefinition::Copy(const wxRichTextParagraphStyleDefinition& def)
  60 {
  61     wxRichTextStyleDefinition::Copy(def);
  62
  63     m_nextStyle = def.m_nextStyle;
  64 }
  65
  66 bool wxRichTextParagraphStyleDefinition::operator ==(const wxRichTextParagraphStyleDefinition& def) const
  67 {
  68     return (Eq(def) && m_nextStyle == def.m_nextStyle);
  69 }
  70
  71 /*!
  72  * List style definition
  73  */
  74
  75 void wxRichTextListStyleDefinition::Copy(const wxRichTextListStyleDefinition& def)
  76 {
  77     wxRichTextParagraphStyleDefinition::Copy(def);
  78
  79     int i;
  80     for (i = 0; i < 10; i++)
  81         m_levelStyles[i] = def.m_levelStyles[i];
  82 }
  83
  84 bool wxRichTextListStyleDefinition::operator ==(const wxRichTextListStyleDefinition& def) const
  85 {
  86     if (!Eq(def))
  87         return false;
  88     int i;
  89     for (i = 0; i < 10; i++)
  90         if (!(m_levelStyles[i] == def.m_levelStyles[i]))
  91             return false;
  92
  93     return true;
  94 }
  95
  96 /// Sets/gets the attributes for the given level
  97 void wxRichTextListStyleDefinition::SetLevelAttributes(int i, const wxRichTextAttr& attr)
  98 {
  99     wxASSERT( (i >= 0 && i < 10) );
 100     if (i >= 0 && i < 10)
 101         m_levelStyles[i] = attr;
 102 }
 103
 104 const wxRichTextAttr* wxRichTextListStyleDefinition::GetLevelAttributes(int i) const
 105 {
 106     wxASSERT( (i >= 0 && i < 10) );
 107     if (i >= 0 && i < 10)
 108         return & m_levelStyles[i];
 109     else
 110         return NULL;
 111 }
 112
 113 wxRichTextAttr* wxRichTextListStyleDefinition::GetLevelAttributes(int i)
 114 {
 115     wxASSERT( (i >= 0 && i < 10) );
 116     if (i >= 0 && i < 10)
 117         return & m_levelStyles[i];
 118     else
 119         return NULL;
 120 }
 121
 122 /// Convenience function for setting the major attributes for a list level specification
 123 void wxRichTextListStyleDefinition::SetAttributes(int i, int leftIndent, int leftSubIndent, int bulletStyle, const wxString& bulletSymbol)
 124 {
 125     wxASSERT( (i >= 0 && i < 10) );
 126     if (i >= 0 && i < 10)
 127     {
 128         wxRichTextAttr attr;
 129
 130         attr.SetBulletStyle(bulletStyle);
 131         attr.SetLeftIndent(leftIndent, leftSubIndent);
 132
 133         if (!bulletSymbol.IsEmpty())
 134         {
 135             if (bulletStyle & wxTEXT_ATTR_BULLET_STYLE_SYMBOL)
 136                 attr.SetBulletText(bulletSymbol);
 137             else
 138                 attr.SetBulletName(bulletSymbol);
 139         }
 140
 141         m_levelStyles[i] = attr;
 142     }
 143 }
 144
 145 /// Finds the level corresponding to the given indentation
 146 int wxRichTextListStyleDefinition::FindLevelForIndent(int indent) const
 147 {
 148     int i;
 149     for (i = 0; i < 10; i++)
 150     {
 151         if (indent < m_levelStyles[i].GetLeftIndent())
 152         {
 153             if (i > 0)
 154                 return i - 1;
 155             else
 156                 return 0;
 157         }
 158     }
 159     return 9;
 160 }
 161
 162 /// Combine the list style with a paragraph style, using the given indent (from which
 163 /// an appropriate level is found)
 164 wxRichTextAttr wxRichTextListStyleDefinition::CombineWithParagraphStyle(int indent, const wxRichTextAttr& paraStyle)
 165 {
 166     int listLevel = FindLevelForIndent(indent);
 167
 168     wxRichTextAttr attr(*GetLevelAttributes(listLevel));
 169     int oldLeftIndent = attr.GetLeftIndent();
 170     int oldLeftSubIndent = attr.GetLeftSubIndent();
 171
 172     // First apply the overall paragraph style, if any
 173     wxRichTextApplyStyle(attr, GetStyle());
 174
 175     // Then apply paragraph style, e.g. from paragraph style definition
 176     wxRichTextApplyStyle(attr, paraStyle);
 177
 178     // We override the indents according to the list definition
 179     attr.SetLeftIndent(oldLeftIndent, oldLeftSubIndent);
 180
 181     return attr;
 182 }
 183
 184 /// Combine the base and list style, using the given indent (from which
 185 /// an appropriate level is found)
 186 wxRichTextAttr wxRichTextListStyleDefinition::GetCombinedStyle(int indent)
 187 {
 188     int listLevel = FindLevelForIndent(indent);
 189     return GetCombinedStyleForLevel(listLevel);
 190 }
 191
 192 /// Combine the base and list style, using the given indent (from which
 193 /// an appropriate level is found)
 194 wxRichTextAttr wxRichTextListStyleDefinition::GetCombinedStyleForLevel(int listLevel)
 195 {
 196     wxRichTextAttr attr(*GetLevelAttributes(listLevel));
 197     int oldLeftIndent = attr.GetLeftIndent();
 198     int oldLeftSubIndent = attr.GetLeftSubIndent();
 199
 200     // Apply the overall paragraph style, if any
 201     wxRichTextApplyStyle(attr, GetStyle());
 202
 203     // We override the indents according to the list definition
 204     attr.SetLeftIndent(oldLeftIndent, oldLeftSubIndent);
 205
 206     return attr;
 207 }
 208
 209 /// Is this a numbered list?
 210 bool wxRichTextListStyleDefinition::IsNumbered(int i) const
 211 {
 212     return (0 != (GetLevelAttributes(i)->GetFlags() &
 213                    (wxTEXT_ATTR_BULLET_STYLE_ARABIC|wxTEXT_ATTR_BULLET_STYLE_LETTERS_UPPER|wxTEXT_ATTR_BULLET_STYLE_LETTERS_LOWER|
 214                     wxTEXT_ATTR_BULLET_STYLE_ROMAN_UPPER|wxTEXT_ATTR_BULLET_STYLE_ROMAN_LOWER)));
 215 }
 216
 217 /*!
 218  * The style manager
 219  */
 220
 221 IMPLEMENT_CLASS(wxRichTextStyleSheet, wxObject)
 222
 223 wxRichTextStyleSheet::~wxRichTextStyleSheet()
 224 {
 225     DeleteStyles();
 226
 227     if (m_nextSheet)
 228         m_nextSheet->m_previousSheet = m_previousSheet;
 229
 230     if (m_previousSheet)
 231         m_previousSheet->m_nextSheet = m_nextSheet;
 232
 233     m_previousSheet = NULL;
 234     m_nextSheet = NULL;
 235 }
 236
 237 /// Initialisation
 238 void wxRichTextStyleSheet::Init()
 239 {
 240     m_previousSheet = NULL;
 241     m_nextSheet = NULL;
 242 }
 243
 244 /// Add a definition to one of the style lists
 245 bool wxRichTextStyleSheet::AddStyle(wxList& list, wxRichTextStyleDefinition* def)
 246 {
 247     if (!list.Find(def))
 248         list.Append(def);
 249     return true;
 250 }
 251
 252 /// Remove a style
 253 bool wxRichTextStyleSheet::RemoveStyle(wxList& list, wxRichTextStyleDefinition* def, bool deleteStyle)
 254 {
 255     wxList::compatibility_iterator node = list.Find(def);
 256     if (node)
 257     {
 258         wxRichTextStyleDefinition* def = (wxRichTextStyleDefinition*) node->GetData();
 259         list.Erase(node);
 260         if (deleteStyle)
 261             delete def;
 262         return true;
 263     }
 264     else
 265         return false;
 266 }
 267
 268 /// Find a definition by name
 269 wxRichTextStyleDefinition* wxRichTextStyleSheet::FindStyle(const wxList& list, const wxString& name, bool recurse) const
 270 {
 271     for (wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext())
 272     {
 273         wxRichTextStyleDefinition* def = (wxRichTextStyleDefinition*) node->GetData();
 274         if (def->GetName().Lower() == name.Lower())
 275             return def;
 276     }
 277
 278     if (m_nextSheet && recurse)
 279         return m_nextSheet->FindStyle(list, name, recurse);
 280
 281     return NULL;
 282 }
 283
 284 /// Delete all styles
 285 void wxRichTextStyleSheet::DeleteStyles()
 286 {
 287     WX_CLEAR_LIST(wxList, m_characterStyleDefinitions);
 288     WX_CLEAR_LIST(wxList, m_paragraphStyleDefinitions);
 289     WX_CLEAR_LIST(wxList, m_listStyleDefinitions);
 290 }
 291
 292 /// Insert into list of style sheets
 293 bool wxRichTextStyleSheet::InsertSheet(wxRichTextStyleSheet* before)
 294 {
 295     m_previousSheet = before->m_previousSheet;
 296     m_nextSheet = before;
 297
 298     before->m_previousSheet = this;
 299     return true;
 300 }
 301
 302 /// Append to list of style sheets
 303 bool wxRichTextStyleSheet::AppendSheet(wxRichTextStyleSheet* after)
 304 {
 305     wxRichTextStyleSheet* last = after;
 306     while (last && last->m_nextSheet)
 307     {
 308         last = last->m_nextSheet;
 309     }
 310
 311     if (last)
 312     {
 313         m_previousSheet = last;
 314         last->m_nextSheet = this;
 315
 316         return true;
 317     }
 318     else
 319         return false;
 320 }
 321
 322 /// Unlink from the list of style sheets
 323 void wxRichTextStyleSheet::Unlink()
 324 {
 325     if (m_previousSheet)
 326         m_previousSheet->m_nextSheet = m_nextSheet;
 327     if (m_nextSheet)
 328         m_nextSheet->m_previousSheet = m_previousSheet;
 329
 330     m_previousSheet = NULL;
 331     m_nextSheet = NULL;
 332 }
 333
 334 /// Add a definition to the character style list
 335 bool wxRichTextStyleSheet::AddCharacterStyle(wxRichTextCharacterStyleDefinition* def)
 336 {
 337     def->GetStyle().SetCharacterStyleName(def->GetName());
 338     return AddStyle(m_characterStyleDefinitions, def);
 339 }
 340
 341 /// Add a definition to the paragraph style list
 342 bool wxRichTextStyleSheet::AddParagraphStyle(wxRichTextParagraphStyleDefinition* def)
 343 {
 344     def->GetStyle().SetParagraphStyleName(def->GetName());
 345     return AddStyle(m_paragraphStyleDefinitions, def);
 346 }
 347
 348 /// Add a definition to the list style list
 349 bool wxRichTextStyleSheet::AddListStyle(wxRichTextListStyleDefinition* def)
 350 {
 351     def->GetStyle().SetListStyleName(def->GetName());
 352     return AddStyle(m_listStyleDefinitions, def);
 353 }
 354
 355 /// Copy
 356 void wxRichTextStyleSheet::Copy(const wxRichTextStyleSheet& sheet)
 357 {
 358     DeleteStyles();
 359
 360     wxList::compatibility_iterator node;
 361
 362     for (node = sheet.m_characterStyleDefinitions.GetFirst(); node; node = node->GetNext())
 363     {
 364         wxRichTextCharacterStyleDefinition* def = (wxRichTextCharacterStyleDefinition*) node->GetData();
 365         AddCharacterStyle(new wxRichTextCharacterStyleDefinition(*def));
 366     }
 367
 368     for (node = sheet.m_paragraphStyleDefinitions.GetFirst(); node; node = node->GetNext())
 369     {
 370         wxRichTextParagraphStyleDefinition* def = (wxRichTextParagraphStyleDefinition*) node->GetData();
 371         AddParagraphStyle(new wxRichTextParagraphStyleDefinition(*def));
 372     }
 373
 374     for (node = sheet.m_listStyleDefinitions.GetFirst(); node; node = node->GetNext())
 375     {
 376         wxRichTextListStyleDefinition* def = (wxRichTextListStyleDefinition*) node->GetData();
 377         AddListStyle(new wxRichTextListStyleDefinition(*def));
 378     }
 379 }
 380
 381 /// Equality
 382 bool wxRichTextStyleSheet::operator==(const wxRichTextStyleSheet& WXUNUSED(sheet)) const
 383 {
 384     // TODO
 385     return false;
 386 }
 387
 388
 389 #if wxUSE_HTML
 390 /*!
 391  * wxRichTextStyleListBox: a listbox to display styles.
 392  */
 393
 394 IMPLEMENT_CLASS(wxRichTextStyleListBox, wxHtmlListBox)
 395
 396 BEGIN_EVENT_TABLE(wxRichTextStyleListBox, wxHtmlListBox)
 397     EVT_LEFT_DOWN(wxRichTextStyleListBox::OnLeftDown)
 398     EVT_LEFT_DCLICK(wxRichTextStyleListBox::OnLeftDoubleClick)
 399     EVT_IDLE(wxRichTextStyleListBox::OnIdle)
 400 END_EVENT_TABLE()
 401
 402 wxRichTextStyleListBox::wxRichTextStyleListBox(wxWindow* parent, wxWindowID id, const wxPoint& pos,
 403     const wxSize& size, long style)
 404 {
 405     Init();
 406     Create(parent, id, pos, size, style);
 407 }
 408
 409 bool wxRichTextStyleListBox::Create(wxWindow* parent, wxWindowID id, const wxPoint& pos,
 410         const wxSize& size, long style)
 411 {
 412     return wxHtmlListBox::Create(parent, id, pos, size, style);
 413 }
 414
 415 wxRichTextStyleListBox::~wxRichTextStyleListBox()
 416 {
 417 }
 418
 419 /// Returns the HTML for this item
 420 wxString wxRichTextStyleListBox::OnGetItem(size_t n) const
 421 {
 422     if (!GetStyleSheet())
 423         return wxEmptyString;
 424
 425     wxRichTextStyleDefinition* def = GetStyle(n);
 426     if (def)
 427         return CreateHTML(def);
 428
 429     return wxEmptyString;
 430 }
 431
 432 // Get style for index
 433 wxRichTextStyleDefinition* wxRichTextStyleListBox::GetStyle(size_t i) const
 434 {
 435     if (!GetStyleSheet())
 436         return NULL;
 437
 438     if (GetStyleType() == wxRICHTEXT_STYLE_ALL)
 439     {
 440         // First paragraph styles, then character, then list
 441         if (i < GetStyleSheet()->GetParagraphStyleCount())
 442             return GetStyleSheet()->GetParagraphStyle(i);
 443
 444         if ((i - GetStyleSheet()->GetParagraphStyleCount()) < GetStyleSheet()->GetCharacterStyleCount())
 445             return GetStyleSheet()->GetCharacterStyle(i - GetStyleSheet()->GetParagraphStyleCount());
 446
 447         if ((i - GetStyleSheet()->GetParagraphStyleCount() - GetStyleSheet()->GetCharacterStyleCount()) < GetStyleSheet()->GetListStyleCount())
 448             return GetStyleSheet()->GetListStyle(i - GetStyleSheet()->GetParagraphStyleCount() - GetStyleSheet()->GetCharacterStyleCount());
 449     }
 450     else if ((GetStyleType() == wxRICHTEXT_STYLE_PARAGRAPH) && (i < GetStyleSheet()->GetParagraphStyleCount()))
 451     {
 452         return GetStyleSheet()->GetParagraphStyle(i);
 453     }
 454     else if ((GetStyleType() == wxRICHTEXT_STYLE_CHARACTER) && (i < GetStyleSheet()->GetCharacterStyleCount()))
 455     {
 456         return GetStyleSheet()->GetCharacterStyle(i);
 457     }
 458     else if ((GetStyleType() == wxRICHTEXT_STYLE_LIST) && (i < GetStyleSheet()->GetListStyleCount()))
 459     {
 460         return GetStyleSheet()->GetListStyle(i);
 461     }
 462
 463     return NULL;
 464 }
 465
 466 /// Updates the list
 467 void wxRichTextStyleListBox::UpdateStyles()
 468 {
 469     if (GetStyleSheet())
 470     {
 471         SetSelection(wxNOT_FOUND);
 472
 473         if (GetStyleType() == wxRICHTEXT_STYLE_ALL)
 474             SetItemCount(GetStyleSheet()->GetParagraphStyleCount()+GetStyleSheet()->GetCharacterStyleCount()+GetStyleSheet()->GetListStyleCount());
 475         else if (GetStyleType() == wxRICHTEXT_STYLE_PARAGRAPH)
 476             SetItemCount(GetStyleSheet()->GetParagraphStyleCount());
 477         else if (GetStyleType() == wxRICHTEXT_STYLE_CHARACTER)
 478             SetItemCount(GetStyleSheet()->GetCharacterStyleCount());
 479         else if (GetStyleType() == wxRICHTEXT_STYLE_LIST)
 480             SetItemCount(GetStyleSheet()->GetListStyleCount());
 481
 482         Refresh();
 483
 484         if (GetItemCount() > 0)
 485         {
 486             SetSelection(0);
 487             SendSelectedEvent();
 488         }
 489     }
 490 }
 491
 492 // Get index for style name
 493 int wxRichTextStyleListBox::GetIndexForStyle(const wxString& name) const
 494 {
 495     if (GetStyleSheet())
 496     {
 497         int count = GetItemCount();
 498
 499         int i;
 500         for (i = 0; i < (int) count; i++)
 501         {
 502             wxRichTextStyleDefinition* def = GetStyle(i);
 503             if (def->GetName() == name)
 504                 return i;
 505         }
 506     }
 507     return -1;
 508 }
 509
 510 /// Set selection for string
 511 int wxRichTextStyleListBox::SetStyleSelection(const wxString& name)
 512 {
 513     int i = GetIndexForStyle(name);
 514     if (i > -1)
 515         SetSelection(i);
 516     return i;
 517 }
 518
 519 // Convert a colour to a 6-digit hex string
 520 static wxString ColourToHexString(const wxColour& col)
 521 {
 522     wxString hex;
 523
 524     hex += wxDecToHex(col.Red());
 525     hex += wxDecToHex(col.Green());
 526     hex += wxDecToHex(col.Blue());
 527
 528     return hex;
 529 }
 530
 531 /// Creates a suitable HTML fragment for a definition
 532 wxString wxRichTextStyleListBox::CreateHTML(wxRichTextStyleDefinition* def) const
 533 {
 534     // TODO: indicate list format for list style types
 535
 536     wxString str(wxT("<table><tr>"));
 537
 538     if (def->GetStyle().GetLeftIndent() > 0)
 539     {
 540         wxClientDC dc((wxWindow*) this);
 541
 542         str << wxT("<td width=") << (ConvertTenthsMMToPixels(dc, def->GetStyle().GetLeftIndent())/2) << wxT("></td>");
 543     }
 544
 545     str << wxT("<td nowrap>");
 546
 547 #ifdef __WXMSW__
 548     int size = 3;
 549 #else
 550     int size = 4;
 551 #endif
 552
 553     int stdFontSize = 12;
 554     int thisFontSize = ((def->GetStyle().GetFlags() & wxTEXT_ATTR_FONT_SIZE) != 0) ? def->GetStyle().GetFontSize() : stdFontSize;
 555
 556     if (thisFontSize < stdFontSize)
 557         size ++;
 558     else if (thisFontSize > stdFontSize)
 559         size --;
 560
 561     str += wxT("<font");
 562
 563     str << wxT(" size=") << size;
 564
 565     if (!def->GetStyle().GetFontFaceName().IsEmpty())
 566         str << wxT(" face=\"") << def->GetStyle().GetFontFaceName() << wxT("\"");
 567
 568     if (def->GetStyle().GetTextColour().Ok())
 569         str << wxT(" color=\"#") << ColourToHexString(def->GetStyle().GetTextColour()) << wxT("\"");
 570
 571     str << wxT(">");
 572
 573     bool hasBold = false;
 574     bool hasItalic = false;
 575     bool hasUnderline = false;
 576
 577     if (def->GetStyle().GetFontWeight() == wxBOLD)
 578         hasBold = true;
 579     if (def->GetStyle().GetFontStyle() == wxITALIC)
 580         hasItalic = true;
 581     if (def->GetStyle().GetFontUnderlined())
 582         hasUnderline = true;
 583
 584     if (hasBold)
 585         str << wxT("<b>");
 586     if (hasItalic)
 587         str << wxT("<i>");
 588     if (hasUnderline)
 589         str << wxT("<u>");
 590
 591     str += def->GetName();
 592
 593     if (hasUnderline)
 594         str << wxT("</u>");
 595     if (hasItalic)
 596         str << wxT("</i>");
 597     if (hasBold)
 598         str << wxT("</b>");
 599
 600     str << wxT("</font>");
 601
 602     str += wxT("</td></tr></table>");
 603     return str;
 604 }
 605
 606 // Convert units in tends of a millimetre to device units
 607 int wxRichTextStyleListBox::ConvertTenthsMMToPixels(wxDC& dc, int units) const
 608 {
 609     int ppi = dc.GetPPI().x;
 610
 611     // There are ppi pixels in 254.1 "1/10 mm"
 612
 613     double pixels = ((double) units * (double)ppi) / 254.1;
 614
 615     return (int) pixels;
 616 }
 617
 618 void wxRichTextStyleListBox::OnLeftDown(wxMouseEvent& event)
 619 {
 620     wxVListBox::OnLeftDown(event);
 621
 622     int item = HitTest(event.GetPosition());
 623     if (item != wxNOT_FOUND && GetApplyOnSelection())
 624         ApplyStyle(item);
 625 }
 626
 627 void wxRichTextStyleListBox::OnLeftDoubleClick(wxMouseEvent& event)
 628 {
 629     wxVListBox::OnLeftDown(event);
 630
 631     int item = HitTest(event.GetPosition());
 632     if (item != wxNOT_FOUND && !GetApplyOnSelection())
 633         ApplyStyle(item);
 634 }
 635
 636 /// Helper for listbox and combo control
 637 wxString wxRichTextStyleListBox::GetStyleToShowInIdleTime(wxRichTextCtrl* ctrl, wxRichTextStyleType styleType)
 638 {
 639     int adjustedCaretPos = ctrl->GetAdjustedCaretPosition(ctrl->GetCaretPosition());
 640
 641     wxRichTextParagraph* para = ctrl->GetBuffer().GetParagraphAtPosition(adjustedCaretPos);
 642     wxRichTextObject* obj = ctrl->GetBuffer().GetLeafObjectAtPosition(adjustedCaretPos);
 643
 644     wxString styleName;
 645
 646     // Take into account current default style just chosen by user
 647     if (ctrl->IsDefaultStyleShowing())
 648     {
 649         if ((styleType == wxRICHTEXT_STYLE_ALL || styleType == wxRICHTEXT_STYLE_CHARACTER) &&
 650                           !ctrl->GetDefaultStyleEx().GetCharacterStyleName().IsEmpty())
 651             styleName = ctrl->GetDefaultStyleEx().GetCharacterStyleName();
 652         else if ((styleType == wxRICHTEXT_STYLE_ALL || styleType == wxRICHTEXT_STYLE_PARAGRAPH) &&
 653                           !ctrl->GetDefaultStyleEx().GetParagraphStyleName().IsEmpty())
 654             styleName = ctrl->GetDefaultStyleEx().GetParagraphStyleName();
 655         else if ((styleType == wxRICHTEXT_STYLE_ALL || styleType == wxRICHTEXT_STYLE_LIST) &&
 656                           !ctrl->GetDefaultStyleEx().GetListStyleName().IsEmpty())
 657             styleName = ctrl->GetDefaultStyleEx().GetListStyleName();
 658     }
 659     else if (obj && (styleType == wxRICHTEXT_STYLE_ALL || styleType == wxRICHTEXT_STYLE_CHARACTER) &&
 660              !obj->GetAttributes().GetCharacterStyleName().IsEmpty())
 661     {
 662         styleName = obj->GetAttributes().GetCharacterStyleName();
 663     }
 664     else if (para && (styleType == wxRICHTEXT_STYLE_ALL || styleType == wxRICHTEXT_STYLE_PARAGRAPH) &&
 665              !para->GetAttributes().GetParagraphStyleName().IsEmpty())
 666     {
 667         styleName = para->GetAttributes().GetParagraphStyleName();
 668     }
 669     else if (para && (styleType == wxRICHTEXT_STYLE_ALL || styleType == wxRICHTEXT_STYLE_LIST) &&
 670              !para->GetAttributes().GetListStyleName().IsEmpty())
 671     {
 672         styleName = para->GetAttributes().GetListStyleName();
 673     }
 674
 675     return styleName;
 676 }
 677
 678 /// Auto-select from style under caret in idle time
 679 void wxRichTextStyleListBox::OnIdle(wxIdleEvent& event)
 680 {
 681     if (CanAutoSetSelection() && GetRichTextCtrl() && wxWindow::FindFocus() != this)
 682     {
 683         wxString styleName = GetStyleToShowInIdleTime(GetRichTextCtrl(), GetStyleType());
 684
 685         int sel = GetSelection();
 686         if (!styleName.IsEmpty())
 687         {
 688             // Don't do the selection if it's already set
 689             if (sel == GetIndexForStyle(styleName))
 690                 return;
 691
 692             SetStyleSelection(styleName);
 693         }
 694         else if (sel != -1)
 695             SetSelection(-1);
 696     }
 697     event.Skip();
 698 }
 699
 700 /// Do selection
 701 void wxRichTextStyleListBox::ApplyStyle(int item)
 702 {
 703     if ( item != wxNOT_FOUND )
 704     {
 705         wxRichTextStyleDefinition* def = GetStyle(item);
 706         if (def && GetRichTextCtrl())
 707         {
 708             GetRichTextCtrl()->ApplyStyle(def);
 709             GetRichTextCtrl()->SetFocus();
 710         }
 711     }
 712 }
 713
 714 /*!
 715  * wxRichTextStyleListCtrl class: manages a listbox and a choice control to
 716  * switch shown style types
 717  */
 718
 719 IMPLEMENT_CLASS(wxRichTextStyleListCtrl, wxControl)
 720
 721 BEGIN_EVENT_TABLE(wxRichTextStyleListCtrl, wxControl)
 722     EVT_CHOICE(wxID_ANY, wxRichTextStyleListCtrl::OnChooseType)
 723     EVT_SIZE(wxRichTextStyleListCtrl::OnSize)
 724 END_EVENT_TABLE()
 725
 726 wxRichTextStyleListCtrl::wxRichTextStyleListCtrl(wxWindow* parent, wxWindowID id, const wxPoint& pos,
 727     const wxSize& size, long style)
 728 {
 729     Init();
 730     Create(parent, id, pos, size, style);
 731 }
 732
 733 bool wxRichTextStyleListCtrl::Create(wxWindow* parent, wxWindowID id, const wxPoint& pos,
 734         const wxSize& size, long style)
 735 {
 736     wxControl::Create(parent, id, pos, size, style);
 737
 738     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
 739     if (size != wxDefaultSize)
 740         SetInitialSize(size);
 741
 742     bool showSelector = ((style & wxRICHTEXTSTYLELIST_HIDE_TYPE_SELECTOR) == 0);
 743
 744     m_styleListBox = new wxRichTextStyleListBox(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, showSelector ? wxSIMPLE_BORDER : wxNO_BORDER);
 745
 746     wxBoxSizer* boxSizer = new wxBoxSizer(wxVERTICAL);
 747
 748     if (showSelector)
 749     {
 750         wxArrayString choices;
 751         choices.Add(_("All styles"));
 752         choices.Add(_("Paragraph styles"));
 753         choices.Add(_("Character styles"));
 754         choices.Add(_("List styles"));
 755
 756         m_styleChoice = new wxChoice(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, choices);
 757
 758         boxSizer->Add(m_styleListBox, 1, wxALL|wxEXPAND, 5);
 759         boxSizer->Add(m_styleChoice, 0, wxALL|wxEXPAND, 5);
 760     }
 761     else
 762     {
 763         boxSizer->Add(m_styleListBox, 1, wxALL|wxEXPAND, 0);
 764     }
 765
 766     SetSizer(boxSizer);
 767     Layout();
 768
 769     m_dontUpdate = true;
 770
 771     if (m_styleChoice)
 772     {
 773         int i = StyleTypeToIndex(m_styleListBox->GetStyleType());
 774         m_styleChoice->SetSelection(i);
 775     }
 776
 777     m_dontUpdate = false;
 778
 779     return true;
 780 }
 781
 782 wxRichTextStyleListCtrl::~wxRichTextStyleListCtrl()
 783 {
 784
 785 }
 786
 787 /// React to style type choice
 788 void wxRichTextStyleListCtrl::OnChooseType(wxCommandEvent& event)
 789 {
 790     if (event.GetEventObject() != m_styleChoice)
 791         event.Skip();
 792     else
 793     {
 794         if (m_dontUpdate)
 795             return;
 796
 797         wxRichTextStyleListBox::wxRichTextStyleType styleType = StyleIndexToType(event.GetSelection());
 798         m_styleListBox->SetStyleType(styleType);
 799     }
 800 }
 801
 802 /// Lay out the controls
 803 void wxRichTextStyleListCtrl::OnSize(wxSizeEvent& WXUNUSED(event))
 804 {
 805     if (GetAutoLayout())
 806         Layout();
 807 }
 808
 809 /// Get the choice index for style type
 810 int wxRichTextStyleListCtrl::StyleTypeToIndex(wxRichTextStyleListBox::wxRichTextStyleType styleType)
 811 {
 812     if (styleType == wxRichTextStyleListBox::wxRICHTEXT_STYLE_ALL)
 813     {
 814         return 0;
 815     }
 816     else if (styleType == wxRichTextStyleListBox::wxRICHTEXT_STYLE_PARAGRAPH)
 817     {
 818         return 1;
 819     }
 820     else if (styleType == wxRichTextStyleListBox::wxRICHTEXT_STYLE_CHARACTER)
 821     {
 822         return 2;
 823     }
 824     else if (styleType == wxRichTextStyleListBox::wxRICHTEXT_STYLE_LIST)
 825     {
 826         return 3;
 827     }
 828     return 0;
 829 }
 830
 831 /// Get the style type for choice index
 832 wxRichTextStyleListBox::wxRichTextStyleType wxRichTextStyleListCtrl::StyleIndexToType(int i)
 833 {
 834     if (i == 1)
 835         return wxRichTextStyleListBox::wxRICHTEXT_STYLE_PARAGRAPH;
 836     else if (i == 2)
 837         return wxRichTextStyleListBox::wxRICHTEXT_STYLE_CHARACTER;
 838     else if (i == 3)
 839         return wxRichTextStyleListBox::wxRICHTEXT_STYLE_LIST;
 840
 841     return wxRichTextStyleListBox::wxRICHTEXT_STYLE_ALL;
 842 }
 843
 844 /// Associates the control with a style manager
 845 void wxRichTextStyleListCtrl::SetStyleSheet(wxRichTextStyleSheet* styleSheet)
 846 {
 847     if (m_styleListBox)
 848         m_styleListBox->SetStyleSheet(styleSheet);
 849 }
 850
 851 wxRichTextStyleSheet* wxRichTextStyleListCtrl::GetStyleSheet() const
 852 {
 853     if (m_styleListBox)
 854         return m_styleListBox->GetStyleSheet();
 855     else
 856         return NULL;
 857 }
 858
 859 /// Associates the control with a wxRichTextCtrl
 860 void wxRichTextStyleListCtrl::SetRichTextCtrl(wxRichTextCtrl* ctrl)
 861 {
 862     if (m_styleListBox)
 863         m_styleListBox->SetRichTextCtrl(ctrl);
 864 }
 865
 866 wxRichTextCtrl* wxRichTextStyleListCtrl::GetRichTextCtrl() const
 867 {
 868     if (m_styleListBox)
 869         return m_styleListBox->GetRichTextCtrl();
 870     else
 871         return NULL;
 872 }
 873
 874 /// Set/get the style type to display
 875 void wxRichTextStyleListCtrl::SetStyleType(wxRichTextStyleListBox::wxRichTextStyleType styleType)
 876 {
 877     if (m_styleListBox)
 878         m_styleListBox->SetStyleType(styleType);
 879
 880     m_dontUpdate = true;
 881
 882     if (m_styleChoice)
 883     {
 884         int i = StyleTypeToIndex(m_styleListBox->GetStyleType());
 885         m_styleChoice->SetSelection(i);
 886     }
 887
 888     m_dontUpdate = false;
 889 }
 890
 891 wxRichTextStyleListBox::wxRichTextStyleType wxRichTextStyleListCtrl::GetStyleType() const
 892 {
 893     if (m_styleListBox)
 894         return m_styleListBox->GetStyleType();
 895     else
 896         return wxRichTextStyleListBox::wxRICHTEXT_STYLE_ALL;
 897 }
 898
 899 /// Updates the style list box
 900 void wxRichTextStyleListCtrl::UpdateStyles()
 901 {
 902     if (m_styleListBox)
 903         m_styleListBox->UpdateStyles();
 904 }
 905
 906 #if wxUSE_COMBOCTRL
 907
 908 /*!
 909  * Style drop-down for a wxComboCtrl
 910  */
 911
 912
 913 BEGIN_EVENT_TABLE(wxRichTextStyleComboPopup, wxRichTextStyleListBox)
 914     EVT_MOTION(wxRichTextStyleComboPopup::OnMouseMove)
 915     EVT_LEFT_DOWN(wxRichTextStyleComboPopup::OnMouseClick)
 916 END_EVENT_TABLE()
 917
 918 void wxRichTextStyleComboPopup::SetStringValue( const wxString& s )
 919 {
 920     m_value = SetStyleSelection(s);
 921 }
 922
 923 wxString wxRichTextStyleComboPopup::GetStringValue() const
 924 {
 925     int sel = m_value;
 926     if (sel > -1)
 927     {
 928         wxRichTextStyleDefinition* def = GetStyle(sel);
 929         if (def)
 930             return def->GetName();
 931     }
 932     return wxEmptyString;
 933 }
 934
 935 //
 936 // Popup event handlers
 937 //
 938
 939 // Mouse hot-tracking
 940 void wxRichTextStyleComboPopup::OnMouseMove(wxMouseEvent& event)
 941 {
 942     // Move selection to cursor if it is inside the popup
 943
 944     int itemHere = wxRichTextStyleListBox::HitTest(event.GetPosition());
 945     if ( itemHere >= 0 )
 946     {
 947         wxRichTextStyleListBox::SetSelection(itemHere);
 948         m_itemHere = itemHere;
 949     }
 950     event.Skip();
 951 }
 952
 953 // On mouse left, set the value and close the popup
 954 void wxRichTextStyleComboPopup::OnMouseClick(wxMouseEvent& WXUNUSED(event))
 955 {
 956     if (m_itemHere >= 0)
 957         m_value = m_itemHere;
 958
 959     // Ordering is important, so we don't dismiss this popup accidentally
 960     // by setting the focus elsewhere e.g. in ApplyStyle
 961     Dismiss();
 962
 963     if (m_itemHere >= 0)
 964         wxRichTextStyleListBox::ApplyStyle(m_itemHere);
 965 }
 966
 967 /*!
 968  * wxRichTextStyleComboCtrl
 969  * A combo for applying styles.
 970  */
 971
 972 IMPLEMENT_CLASS(wxRichTextStyleComboCtrl, wxComboCtrl)
 973
 974 BEGIN_EVENT_TABLE(wxRichTextStyleComboCtrl, wxComboCtrl)
 975     EVT_IDLE(wxRichTextStyleComboCtrl::OnIdle)
 976 END_EVENT_TABLE()
 977
 978 bool wxRichTextStyleComboCtrl::Create(wxWindow* parent, wxWindowID id, const wxPoint& pos,
 979         const wxSize& size, long style)
 980 {
 981     if (!wxComboCtrl::Create(parent, id, wxEmptyString, pos, size, style))
 982         return false;
 983
 984     SetPopupMaxHeight(400);
 985
 986     m_stylePopup = new wxRichTextStyleComboPopup;
 987
 988     SetPopupControl(m_stylePopup);
 989
 990     return true;
 991 }
 992
 993 /// Auto-select from style under caret in idle time
 994
 995 // TODO: must be able to show italic, bold, combinations
 996 // in style box. Do we have a concept of automatic, temporary
 997 // styles that are added whenever we wish to show a style
 998 // that doesn't exist already? E.g. "Bold, Italic, Underline".
 999 // Word seems to generate these things on the fly.
1000 // If there's a named style already, it uses e.g. Heading1 + Bold, Italic
1001 // If you unembolden text in a style that has bold, it uses the
1002 // term "Not bold".
1003 // TODO: order styles alphabetically. This means indexes can change,
1004 // so need a different way to specify selections, i.e. by name.
1005
1006 void wxRichTextStyleComboCtrl::OnIdle(wxIdleEvent& event)
1007 {
1008     if (GetRichTextCtrl() && !IsPopupShown() && m_stylePopup && wxWindow::FindFocus() != this)
1009     {
1010         wxString styleName = wxRichTextStyleListBox::GetStyleToShowInIdleTime(GetRichTextCtrl(), m_stylePopup->GetStyleType());
1011
1012         wxString currentValue = GetValue();
1013         if (!styleName.IsEmpty())
1014         {
1015             // Don't do the selection if it's already set
1016             if (currentValue == styleName)
1017                 return;
1018
1019             SetValue(styleName);
1020         }
1021         else if (!currentValue.IsEmpty())
1022             SetValue(wxEmptyString);
1023     }
1024     event.Skip();
1025 }
1026
1027 #endif
1028     // wxUSE_COMBOCTRL
1029
1030 #endif
1031     // wxUSE_HTML
1032
1033 #endif
1034     // wxUSE_RICHTEXT