utils/ogl/src/basic.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        basic.cpp
   3 // Purpose:     Basic OGL classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     12/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "basic.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include <wx/wxprec.h>
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include <wx/wx.h>
  25 #endif
  26
  27 #ifdef PROLOGIO
  28 #include <wx/wxexpr.h>
  29 #endif
  30
  31 #if wxUSE_IOSTREAMH
  32 #include <iostream.h>
  33 #else
  34 #include <iostream>
  35 #endif
  36
  37 #include <stdio.h>
  38 #include <ctype.h>
  39 #include <math.h>
  40
  41 #include "basic.h"
  42 #include "basicp.h"
  43 #include "composit.h"
  44 #include "lines.h"
  45 #include "canvas.h"
  46 #include "divided.h"
  47 #include "misc.h"
  48
  49 // Control point types
  50 // Rectangle and most other shapes
  51 #define CONTROL_POINT_VERTICAL   1
  52 #define CONTROL_POINT_HORIZONTAL 2
  53 #define CONTROL_POINT_DIAGONAL   3
  54
  55 // Line
  56 #define CONTROL_POINT_ENDPOINT_TO 4
  57 #define CONTROL_POINT_ENDPOINT_FROM 5
  58 #define CONTROL_POINT_LINE       6
  59
  60 IMPLEMENT_DYNAMIC_CLASS(wxShapeTextLine, wxObject)
  61 IMPLEMENT_DYNAMIC_CLASS(wxAttachmentPoint, wxObject)
  62
  63 wxShapeTextLine::wxShapeTextLine(double the_x, double the_y, const wxString& the_line)
  64 {
  65   m_x = the_x; m_y = the_y; m_line = the_line;
  66 }
  67
  68 wxShapeTextLine::~wxShapeTextLine()
  69 {
  70 }
  71
  72 IMPLEMENT_ABSTRACT_CLASS(wxShapeEvtHandler, wxObject)
  73
  74 wxShapeEvtHandler::wxShapeEvtHandler(wxShapeEvtHandler *prev, wxShape *shape)
  75 {
  76   m_previousHandler = prev;
  77   m_handlerShape = shape;
  78 }
  79
  80 wxShapeEvtHandler::~wxShapeEvtHandler()
  81 {
  82 }
  83
  84 // Creates a copy of this event handler.
  85 wxShapeEvtHandler* wxShapeEvtHandler::CreateNewCopy()
  86 {
  87   wxShapeEvtHandler* newObject = (wxShapeEvtHandler*) GetClassInfo()->CreateObject();
  88
  89   wxASSERT( (newObject != NULL) );
  90   wxASSERT( (newObject->IsKindOf(CLASSINFO(wxShapeEvtHandler))) );
  91
  92   newObject->m_previousHandler = newObject;
  93
  94   CopyData(*newObject);
  95
  96   return newObject;
  97 }
  98
  99
 100 void wxShapeEvtHandler::OnDelete()
 101 {
 102   if (this != GetShape())
 103     delete this;
 104 }
 105
 106 void wxShapeEvtHandler::OnDraw(wxDC& dc)
 107 {
 108   if (m_previousHandler)
 109     m_previousHandler->OnDraw(dc);
 110 }
 111
 112 void wxShapeEvtHandler::OnMoveLinks(wxDC& dc)
 113 {
 114   if (m_previousHandler)
 115     m_previousHandler->OnMoveLinks(dc);
 116 }
 117
 118 void wxShapeEvtHandler::OnMoveLink(wxDC& dc, bool moveControlPoints)
 119 {
 120   if (m_previousHandler)
 121     m_previousHandler->OnMoveLink(dc, moveControlPoints);
 122 }
 123
 124 void wxShapeEvtHandler::OnDrawContents(wxDC& dc)
 125 {
 126   if (m_previousHandler)
 127     m_previousHandler->OnDrawContents(dc);
 128 }
 129
 130 void wxShapeEvtHandler::OnSize(double x, double y)
 131 {
 132   if (m_previousHandler)
 133     m_previousHandler->OnSize(x, y);
 134 }
 135
 136 bool wxShapeEvtHandler::OnMovePre(wxDC& dc, double x, double y, double old_x, double old_y, bool display)
 137 {
 138   if (m_previousHandler)
 139     return m_previousHandler->OnMovePre(dc, x, y, old_x, old_y, display);
 140   else
 141     return TRUE;
 142 }
 143
 144 void wxShapeEvtHandler::OnMovePost(wxDC& dc, double x, double y, double old_x, double old_y, bool display)
 145 {
 146   if (m_previousHandler)
 147     m_previousHandler->OnMovePost(dc, x, y, old_x, old_y, display);
 148 }
 149
 150 void wxShapeEvtHandler::OnErase(wxDC& dc)
 151 {
 152   if (m_previousHandler)
 153     m_previousHandler->OnErase(dc);
 154 }
 155
 156 void wxShapeEvtHandler::OnEraseContents(wxDC& dc)
 157 {
 158   if (m_previousHandler)
 159     m_previousHandler->OnEraseContents(dc);
 160 }
 161
 162 void wxShapeEvtHandler::OnHighlight(wxDC& dc)
 163 {
 164   if (m_previousHandler)
 165     m_previousHandler->OnHighlight(dc);
 166 }
 167
 168 void wxShapeEvtHandler::OnLeftClick(double x, double y, int keys, int attachment)
 169 {
 170   if (m_previousHandler)
 171     m_previousHandler->OnLeftClick(x, y, keys, attachment);
 172 }
 173
 174 void wxShapeEvtHandler::OnRightClick(double x, double y, int keys, int attachment)
 175 {
 176   if (m_previousHandler)
 177     m_previousHandler->OnRightClick(x, y, keys, attachment);
 178 }
 179
 180 void wxShapeEvtHandler::OnDragLeft(bool draw, double x, double y, int keys, int attachment)
 181 {
 182   if (m_previousHandler)
 183     m_previousHandler->OnDragLeft(draw, x, y, keys, attachment);
 184 }
 185
 186 void wxShapeEvtHandler::OnBeginDragLeft(double x, double y, int keys, int attachment)
 187 {
 188   if (m_previousHandler)
 189     m_previousHandler->OnBeginDragLeft(x, y, keys, attachment);
 190 }
 191
 192 void wxShapeEvtHandler::OnEndDragLeft(double x, double y, int keys, int attachment)
 193 {
 194   if (m_previousHandler)
 195     m_previousHandler->OnEndDragLeft(x, y, keys, attachment);
 196 }
 197
 198 void wxShapeEvtHandler::OnDragRight(bool draw, double x, double y, int keys, int attachment)
 199 {
 200   if (m_previousHandler)
 201     m_previousHandler->OnDragRight(draw, x, y, keys, attachment);
 202 }
 203
 204 void wxShapeEvtHandler::OnBeginDragRight(double x, double y, int keys, int attachment)
 205 {
 206   if (m_previousHandler)
 207     m_previousHandler->OnBeginDragRight(x, y, keys, attachment);
 208 }
 209
 210 void wxShapeEvtHandler::OnEndDragRight(double x, double y, int keys, int attachment)
 211 {
 212   if (m_previousHandler)
 213     m_previousHandler->OnEndDragRight(x, y, keys, attachment);
 214 }
 215
 216 // Control points ('handles') redirect control to the actual shape, to make it easier
 217 // to override sizing behaviour.
 218 void wxShapeEvtHandler::OnSizingDragLeft(wxControlPoint* pt, bool draw, double x, double y, int keys, int attachment)
 219 {
 220   if (m_previousHandler)
 221     m_previousHandler->OnSizingDragLeft(pt, draw, x, y, keys, attachment);
 222 }
 223
 224 void wxShapeEvtHandler::OnSizingBeginDragLeft(wxControlPoint* pt, double x, double y, int keys, int attachment)
 225 {
 226   if (m_previousHandler)
 227     m_previousHandler->OnSizingBeginDragLeft(pt, x, y, keys, attachment);
 228 }
 229
 230 void wxShapeEvtHandler::OnSizingEndDragLeft(wxControlPoint* pt, double x, double y, int keys, int attachment)
 231 {
 232   if (m_previousHandler)
 233     m_previousHandler->OnSizingEndDragLeft(pt, x, y, keys, attachment);
 234 }
 235
 236 void wxShapeEvtHandler::OnDrawOutline(wxDC& dc, double x, double y, double w, double h)
 237 {
 238   if (m_previousHandler)
 239     m_previousHandler->OnDrawOutline(dc, x, y, w, h);
 240 }
 241
 242 void wxShapeEvtHandler::OnDrawControlPoints(wxDC& dc)
 243 {
 244   if (m_previousHandler)
 245     m_previousHandler->OnDrawControlPoints(dc);
 246 }
 247
 248 void wxShapeEvtHandler::OnEraseControlPoints(wxDC& dc)
 249 {
 250   if (m_previousHandler)
 251     m_previousHandler->OnEraseControlPoints(dc);
 252 }
 253
 254 // Can override this to prevent or intercept line reordering.
 255 void wxShapeEvtHandler::OnChangeAttachment(int attachment, wxLineShape* line, wxList& ordering)
 256 {
 257   if (m_previousHandler)
 258     m_previousHandler->OnChangeAttachment(attachment, line, ordering);
 259 }
 260
 261 IMPLEMENT_ABSTRACT_CLASS(wxShape, wxShapeEvtHandler)
 262
 263 wxShape::wxShape(wxShapeCanvas *can)
 264 {
 265   m_eventHandler = this;
 266   SetShape(this);
 267   m_id = 0;
 268   m_formatted = FALSE;
 269   m_canvas = can;
 270   m_xpos = 0.0; m_ypos = 0.0;
 271   m_pen = g_oglBlackPen;
 272   m_brush = wxWHITE_BRUSH;
 273   m_font = g_oglNormalFont;
 274   m_textColour = wxBLACK;
 275   m_textColourName = "BLACK";
 276   m_visible = FALSE;
 277   m_clientData = NULL;
 278   m_selected = FALSE;
 279   m_attachmentMode = FALSE;
 280   m_spaceAttachments = TRUE;
 281   m_disableLabel = FALSE;
 282   m_fixedWidth = FALSE;
 283   m_fixedHeight = FALSE;
 284   m_drawHandles = TRUE;
 285   m_sensitivity = OP_ALL;
 286   m_draggable = TRUE;
 287   m_parent = NULL;
 288   m_formatMode = FORMAT_CENTRE_HORIZ | FORMAT_CENTRE_VERT;
 289   m_shadowMode = SHADOW_NONE;
 290   m_shadowOffsetX = 6.0;
 291   m_shadowOffsetY = 6.0;
 292   m_shadowBrush = wxBLACK_BRUSH;
 293   m_textMarginX = 5.0;
 294   m_textMarginY = 5.0;
 295   m_regionName = "0";
 296   m_centreResize = TRUE;
 297   m_maintainAspectRatio = FALSE;
 298   m_highlighted = FALSE;
 299   m_rotation = 0.0;
 300
 301   // Set up a default region. Much of the above will be put into
 302   // the region eventually (the duplication is for compatibility)
 303   wxShapeRegion *region = new wxShapeRegion;
 304   m_regions.Append(region);
 305   region->SetName("0");
 306   region->SetFont(g_oglNormalFont);
 307   region->SetFormatMode(FORMAT_CENTRE_HORIZ | FORMAT_CENTRE_VERT);
 308   region->SetColour("BLACK");
 309 }
 310
 311 wxShape::~wxShape()
 312 {
 313   if (m_parent)
 314     m_parent->GetChildren().DeleteObject(this);
 315
 316   ClearText();
 317   ClearRegions();
 318   ClearAttachments();
 319
 320   if (m_canvas)
 321     m_canvas->RemoveShape(this);
 322
 323   GetEventHandler()->OnDelete();
 324 }
 325
 326 void wxShape::SetHighlight(bool hi, bool recurse)
 327 {
 328   m_highlighted = hi;
 329   if (recurse)
 330   {
 331     wxNode *node = m_children.First();
 332     while (node)
 333     {
 334       wxShape *child = (wxShape *)node->Data();
 335       child->SetHighlight(hi, recurse);
 336       node = node->Next();
 337     }
 338   }
 339 }
 340
 341 void wxShape::SetSensitivityFilter(int sens, bool recursive)
 342 {
 343   if (sens & OP_DRAG_LEFT)
 344     m_draggable = TRUE;
 345   else
 346     m_draggable = FALSE;
 347
 348   m_sensitivity = sens;
 349   if (recursive)
 350   {
 351     wxNode *node = m_children.First();
 352     while (node)
 353     {
 354       wxShape *obj = (wxShape *)node->Data();
 355       obj->SetSensitivityFilter(sens, TRUE);
 356       node = node->Next();
 357     }
 358   }
 359 }
 360
 361 void wxShape::SetDraggable(bool drag, bool recursive)
 362 {
 363   m_draggable = drag;
 364   if (m_draggable)
 365     m_sensitivity |= OP_DRAG_LEFT;
 366   else
 367     if (m_sensitivity & OP_DRAG_LEFT)
 368       m_sensitivity = m_sensitivity - OP_DRAG_LEFT;
 369
 370   if (recursive)
 371   {
 372     wxNode *node = m_children.First();
 373     while (node)
 374     {
 375       wxShape *obj = (wxShape *)node->Data();
 376       obj->SetDraggable(drag, TRUE);
 377       node = node->Next();
 378     }
 379   }
 380 }
 381
 382 void wxShape::SetDrawHandles(bool drawH)
 383 {
 384   m_drawHandles = drawH;
 385   wxNode *node = m_children.First();
 386   while (node)
 387   {
 388     wxShape *obj = (wxShape *)node->Data();
 389     obj->SetDrawHandles(drawH);
 390     node = node->Next();
 391   }
 392 }
 393
 394 void wxShape::SetShadowMode(int mode, bool redraw)
 395 {
 396   if (redraw && GetCanvas())
 397   {
 398     wxClientDC dc(GetCanvas());
 399     GetCanvas()->PrepareDC(dc);
 400     Erase(dc);
 401
 402     m_shadowMode = mode;
 403
 404     Draw(dc);
 405   }
 406   else
 407   {
 408     m_shadowMode = mode;
 409   }
 410 }
 411
 412 void wxShape::SetCanvas(wxShapeCanvas *theCanvas)
 413 {
 414   m_canvas = theCanvas;
 415   wxNode *node = m_children.First();
 416   while (node)
 417   {
 418     wxShape *child = (wxShape *)node->Data();
 419     child->SetCanvas(theCanvas);
 420     node = node->Next();
 421   }
 422 }
 423
 424 void wxShape::AddToCanvas(wxShapeCanvas *theCanvas, wxShape *addAfter)
 425 {
 426   theCanvas->AddShape(this, addAfter);
 427   wxNode *node = m_children.First();
 428   wxShape *lastImage = this;
 429   while (node)
 430   {
 431     wxShape *object = (wxShape *)node->Data();
 432     object->AddToCanvas(theCanvas, lastImage);
 433     lastImage = object;
 434
 435     node = node->Next();
 436   }
 437 }
 438
 439 // Insert at front of canvas
 440 void wxShape::InsertInCanvas(wxShapeCanvas *theCanvas)
 441 {
 442   theCanvas->InsertShape(this);
 443   wxNode *node = m_children.First();
 444   wxShape *lastImage = this;
 445   while (node)
 446   {
 447     wxShape *object = (wxShape *)node->Data();
 448     object->AddToCanvas(theCanvas, lastImage);
 449     lastImage = object;
 450
 451     node = node->Next();
 452   }
 453 }
 454
 455 void wxShape::RemoveFromCanvas(wxShapeCanvas *theCanvas)
 456 {
 457   if (Selected())
 458     Select(FALSE);
 459   theCanvas->RemoveShape(this);
 460   wxNode *node = m_children.First();
 461   while (node)
 462   {
 463     wxShape *object = (wxShape *)node->Data();
 464     object->RemoveFromCanvas(theCanvas);
 465
 466     node = node->Next();
 467   }
 468 }
 469
 470 void wxShape::ClearAttachments()
 471 {
 472   wxNode *node = m_attachmentPoints.First();
 473   while (node)
 474   {
 475     wxAttachmentPoint *point = (wxAttachmentPoint *)node->Data();
 476     delete point;
 477     node = node->Next();
 478   }
 479   m_attachmentPoints.Clear();
 480 }
 481
 482 void wxShape::ClearText(int regionId)
 483 {
 484   if (regionId == 0)
 485   {
 486     m_text.DeleteContents(TRUE);
 487     m_text.Clear();
 488     m_text.DeleteContents(FALSE);
 489   }
 490   wxNode *node = m_regions.Nth(regionId);
 491   if (!node)
 492     return;
 493   wxShapeRegion *region = (wxShapeRegion *)node->Data();
 494   region->ClearText();
 495 }
 496
 497 void wxShape::ClearRegions()
 498 {
 499   wxNode *node = m_regions.First();
 500   while (node)
 501   {
 502     wxShapeRegion *region = (wxShapeRegion *)node->Data();
 503     wxNode *next = node->Next();
 504     delete region;
 505     delete node;
 506     node = next;
 507   }
 508 }
 509
 510 void wxShape::AddRegion(wxShapeRegion *region)
 511 {
 512   m_regions.Append(region);
 513 }
 514
 515 void wxShape::SetDefaultRegionSize()
 516 {
 517   wxNode *node = m_regions.First();
 518   if (!node) return;
 519   wxShapeRegion *region = (wxShapeRegion *)node->Data();
 520   double w, h;
 521   GetBoundingBoxMin(&w, &h);
 522   region->SetSize(w, h);
 523 }
 524
 525 bool wxShape::HitTest(double x, double y, int *attachment, double *distance)
 526 {
 527 //  if (!sensitive)
 528 //    return FALSE;
 529
 530   double width = 0.0, height = 0.0;
 531   GetBoundingBoxMin(&width, &height);
 532   if (fabs(width) < 4.0) width = 4.0;
 533   if (fabs(height) < 4.0) height = 4.0;
 534
 535   width += (double)4.0; height += (double)4.0; // Allowance for inaccurate mousing
 536
 537   double left = (double)(m_xpos - (width/2.0));
 538   double top = (double)(m_ypos - (height/2.0));
 539   double right = (double)(m_xpos + (width/2.0));
 540   double bottom = (double)(m_ypos + (height/2.0));
 541
 542   int nearest_attachment = 0;
 543
 544
 545   // If within the bounding box, check the attachment points
 546   // within the object.
 547
 548   if (x >= left && x <= right && y >= top && y <= bottom)
 549   {
 550     int n = GetNumberOfAttachments();
 551     double nearest = 999999.0;
 552
 553     for (int i = 0; i < n; i++)
 554     {
 555       double xp, yp;
 556       if (GetAttachmentPosition(i, &xp, &yp))
 557       {
 558         double l = (double)sqrt(((xp - x) * (xp - x)) +
 559                    ((yp - y) * (yp - y)));
 560
 561         if (l < nearest)
 562         {
 563           nearest = l;
 564           nearest_attachment = i;
 565         }
 566       }
 567     }
 568     *attachment = nearest_attachment;
 569     *distance = nearest;
 570     return TRUE;
 571   }
 572   else return FALSE;
 573 }
 574
 575 // Format a text string according to the region size, adding
 576 // strings with positions to region text list
 577
 578 static bool GraphicsInSizeToContents = FALSE; // Infinite recursion elimination
 579 void wxShape::FormatText(wxDC& dc, const wxString& s, int i)
 580 {
 581   double w, h;
 582   ClearText(i);
 583
 584   if (m_regions.Number() < 1)
 585     return;
 586   wxNode *node = m_regions.Nth(i);
 587   if (!node)
 588     return;
 589
 590   wxShapeRegion *region = (wxShapeRegion *)node->Data();
 591   region->SetText(s);
 592   dc.SetFont(region->GetFont());
 593
 594   region->GetSize(&w, &h);
 595
 596   wxStringList *stringList = oglFormatText(dc, s, (w-5), (h-5), region->GetFormatMode());
 597   node = stringList->First();
 598   while (node)
 599   {
 600     char *s = (char *)node->Data();
 601     wxShapeTextLine *line = new wxShapeTextLine(0.0, 0.0, s);
 602     region->GetFormattedText().Append((wxObject *)line);
 603     node = node->Next();
 604   }
 605   delete stringList;
 606   double actualW = w;
 607   double actualH = h;
 608   // Don't try to resize an object with more than one image (this case should be dealt
 609   // with by overriden handlers)
 610   if ((region->GetFormatMode() & FORMAT_SIZE_TO_CONTENTS) &&
 611       (region->GetFormattedText().Number() > 0) &&
 612       (m_regions.Number() == 1) && !GraphicsInSizeToContents)
 613   {
 614     oglGetCentredTextExtent(dc, &(region->GetFormattedText()), m_xpos, m_ypos, w, h, &actualW, &actualH);
 615     if ((actualW+m_textMarginX != w ) || (actualH+m_textMarginY != h))
 616     {
 617       // If we are a descendant of a composite, must make sure the composite gets
 618       // resized properly
 619       wxShape *topAncestor = GetTopAncestor();
 620
 621       if (topAncestor != this)
 622       {
 623         // Make sure we don't recurse infinitely
 624         GraphicsInSizeToContents = TRUE;
 625
 626         wxCompositeShape *composite = (wxCompositeShape *)topAncestor;
 627         composite->Erase(dc);
 628         SetSize(actualW+m_textMarginX, actualH+m_textMarginY);
 629         Move(dc, m_xpos, m_ypos);
 630         composite->CalculateSize();
 631         if (composite->Selected())
 632         {
 633           composite->DeleteControlPoints(& dc);
 634           composite->MakeControlPoints();
 635           composite->MakeMandatoryControlPoints();
 636         }
 637         // Where infinite recursion might happen if we didn't stop it
 638         composite->Draw(dc);
 639
 640         GraphicsInSizeToContents = FALSE;
 641       }
 642       else
 643       {
 644         Erase(dc);
 645         SetSize(actualW+m_textMarginX, actualH+m_textMarginY);
 646         Move(dc, m_xpos, m_ypos);
 647       }
 648       SetSize(actualW+m_textMarginX, actualH+m_textMarginY);
 649       Move(dc, m_xpos, m_ypos);
 650       EraseContents(dc);
 651     }
 652   }
 653   oglCentreText(dc, &(region->GetFormattedText()), m_xpos, m_ypos, actualW, actualH, region->GetFormatMode());
 654   m_formatted = TRUE;
 655 }
 656
 657 void wxShape::Recentre(wxDC& dc)
 658 {
 659   double w, h;
 660   GetBoundingBoxMin(&w, &h);
 661
 662   int noRegions = m_regions.Number();
 663   for (int i = 0; i < noRegions; i++)
 664   {
 665     wxNode *node = m_regions.Nth(i);
 666     if (node)
 667     {
 668       wxShapeRegion *region = (wxShapeRegion *)node->Data();
 669       oglCentreText(dc, &(region->GetFormattedText()), m_xpos, m_ypos, w, h, region->GetFormatMode());
 670     }
 671   }
 672 }
 673
 674 bool wxShape::GetPerimeterPoint(double x1, double y1,
 675                                      double x2, double y2,
 676                                      double *x3, double *y3)
 677 {
 678   return FALSE;
 679 }
 680
 681 void wxShape::SetPen(wxPen *the_pen)
 682 {
 683   m_pen = the_pen;
 684 }
 685
 686 void wxShape::SetBrush(wxBrush *the_brush)
 687 {
 688   m_brush = the_brush;
 689 }
 690
 691 // Get the top-most (non-division) ancestor, or self
 692 wxShape *wxShape::GetTopAncestor()
 693 {
 694   if (!GetParent())
 695     return this;
 696
 697   if (GetParent()->IsKindOf(CLASSINFO(wxDivisionShape)))
 698     return this;
 699   else return GetParent()->GetTopAncestor();
 700 }
 701
 702 /*
 703  * Region functions
 704  *
 705  */
 706 void wxShape::SetFont(wxFont *the_font, int regionId)
 707 {
 708   m_font = the_font;
 709   wxNode *node = m_regions.Nth(regionId);
 710   if (!node)
 711     return;
 712   wxShapeRegion *region = (wxShapeRegion *)node->Data();
 713   region->SetFont(the_font);
 714 }
 715
 716 wxFont *wxShape::GetFont(int n) const
 717 {
 718   wxNode *node = m_regions.Nth(n);
 719   if (!node)
 720     return NULL;
 721   wxShapeRegion *region = (wxShapeRegion *)node->Data();
 722   return region->GetFont();
 723 }
 724
 725 void wxShape::SetFormatMode(int mode, int regionId)
 726 {
 727   wxNode *node = m_regions.Nth(regionId);
 728   if (!node)
 729     return;
 730   wxShapeRegion *region = (wxShapeRegion *)node->Data();
 731   region->SetFormatMode(mode);
 732 }
 733
 734 int wxShape::GetFormatMode(int regionId) const
 735 {
 736   wxNode *node = m_regions.Nth(regionId);
 737   if (!node)
 738     return 0;
 739   wxShapeRegion *region = (wxShapeRegion *)node->Data();
 740   return region->GetFormatMode();
 741 }
 742
 743 void wxShape::SetTextColour(const wxString& the_colour, int regionId)
 744 {
 745   wxColour *wxcolour = wxTheColourDatabase->FindColour(the_colour);
 746   m_textColour = wxcolour;
 747   m_textColourName = the_colour;
 748
 749   wxNode *node = m_regions.Nth(regionId);
 750   if (!node)
 751     return;
 752   wxShapeRegion *region = (wxShapeRegion *)node->Data();
 753   region->SetColour(the_colour);
 754 }
 755
 756 wxString wxShape::GetTextColour(int regionId) const
 757 {
 758   wxNode *node = m_regions.Nth(regionId);
 759   if (!node)
 760     return wxString("");
 761   wxShapeRegion *region = (wxShapeRegion *)node->Data();
 762   return region->GetColour();
 763 }
 764
 765 void wxShape::SetRegionName(const wxString& name, int regionId)
 766 {
 767   wxNode *node = m_regions.Nth(regionId);
 768   if (!node)
 769     return;
 770   wxShapeRegion *region = (wxShapeRegion *)node->Data();
 771   region->SetName(name);
 772 }
 773
 774 wxString wxShape::GetRegionName(int regionId)
 775 {
 776   wxNode *node = m_regions.Nth(regionId);
 777   if (!node)
 778     return wxString("");
 779   wxShapeRegion *region = (wxShapeRegion *)node->Data();
 780   return region->GetName();
 781 }
 782
 783 int wxShape::GetRegionId(const wxString& name)
 784 {
 785   wxNode *node = m_regions.First();
 786   int i = 0;
 787   while (node)
 788   {
 789     wxShapeRegion *region = (wxShapeRegion *)node->Data();
 790     if (region->GetName() == name)
 791       return i;
 792     node = node->Next();
 793     i ++;
 794   }
 795   return -1;
 796 }
 797
 798 // Name all m_regions in all subimages recursively.
 799 void wxShape::NameRegions(const wxString& parentName)
 800 {
 801   int n = GetNumberOfTextRegions();
 802   char buf[100];
 803   for (int i = 0; i < n; i++)
 804   {
 805     if (parentName.Length() > 0)
 806       sprintf(buf, "%s.%d", (const char*) parentName, i);
 807     else
 808       sprintf(buf, "%d", i);
 809     SetRegionName(buf, i);
 810   }
 811   wxNode *node = m_children.First();
 812   int j = 0;
 813   while (node)
 814   {
 815     wxShape *child = (wxShape *)node->Data();
 816     if (parentName.Length() > 0)
 817       sprintf(buf, "%s.%d", (const char*) parentName, j);
 818     else
 819       sprintf(buf, "%d", j);
 820     child->NameRegions(buf);
 821     node = node->Next();
 822     j ++;
 823   }
 824 }
 825
 826 // Get a region by name, possibly looking recursively into composites.
 827 wxShape *wxShape::FindRegion(const wxString& name, int *regionId)
 828 {
 829   int id = GetRegionId(name);
 830   if (id > -1)
 831   {
 832     *regionId = id;
 833     return this;
 834   }
 835
 836   wxNode *node = m_children.First();
 837   while (node)
 838   {
 839     wxShape *child = (wxShape *)node->Data();
 840     wxShape *actualImage = child->FindRegion(name, regionId);
 841     if (actualImage)
 842       return actualImage;
 843     node = node->Next();
 844   }
 845   return NULL;
 846 }
 847
 848 // Finds all region names for this image (composite or simple).
 849 // Supply empty string list.
 850 void wxShape::FindRegionNames(wxStringList& list)
 851 {
 852   int n = GetNumberOfTextRegions();
 853   for (int i = 0; i < n; i++)
 854   {
 855     wxString name(GetRegionName(i));
 856     list.Add((const char*) name);
 857   }
 858
 859   wxNode *node = m_children.First();
 860   while (node)
 861   {
 862     wxShape *child = (wxShape *)node->Data();
 863     child->FindRegionNames(list);
 864     node = node->Next();
 865   }
 866 }
 867
 868 void wxShape::AssignNewIds()
 869 {
 870 //  if (m_id == 0)
 871   m_id = NewId();
 872   wxNode *node = m_children.First();
 873   while (node)
 874   {
 875     wxShape *child = (wxShape *)node->Data();
 876     child->AssignNewIds();
 877     node = node->Next();
 878   }
 879 }
 880
 881 void wxShape::OnDraw(wxDC& dc)
 882 {
 883 }
 884
 885 void wxShape::OnMoveLinks(wxDC& dc)
 886 {
 887   // Want to set the ends of all attached links
 888   // to point to/from this object
 889
 890   wxNode *current = m_lines.First();
 891   while (current)
 892   {
 893     wxLineShape *line = (wxLineShape *)current->Data();
 894     line->GetEventHandler()->OnMoveLink(dc);
 895     current = current->Next();
 896   }
 897 }
 898
 899
 900 void wxShape::OnDrawContents(wxDC& dc)
 901 {
 902   double bound_x, bound_y;
 903   GetBoundingBoxMin(&bound_x, &bound_y);
 904     if (m_regions.Number() < 1) return;
 905
 906     if (m_pen) dc.SetPen(m_pen);
 907
 908     wxShapeRegion *region = (wxShapeRegion *)m_regions.First()->Data();
 909     if (region->GetFont()) dc.SetFont(region->GetFont());
 910
 911     dc.SetTextForeground(* (region->GetActualColourObject()));
 912     dc.SetBackgroundMode(wxTRANSPARENT);
 913     if (!m_formatted)
 914     {
 915       oglCentreText(dc, &(region->GetFormattedText()), m_xpos, m_ypos, bound_x, bound_y, region->GetFormatMode());
 916       m_formatted = TRUE;
 917     }
 918     if (!GetDisableLabel())
 919     {
 920       oglDrawFormattedText(dc, &(region->GetFormattedText()), m_xpos, m_ypos, bound_x, bound_y, region->GetFormatMode());
 921     }
 922 }
 923
 924 void wxShape::DrawContents(wxDC& dc)
 925 {
 926   GetEventHandler()->OnDrawContents(dc);
 927 }
 928
 929 void wxShape::OnSize(double x, double y)
 930 {
 931 }
 932
 933 bool wxShape::OnMovePre(wxDC& dc, double x, double y, double old_x, double old_y, bool display)
 934 {
 935   return TRUE;
 936 }
 937
 938 void wxShape::OnMovePost(wxDC& dc, double x, double y, double old_x, double old_y, bool display)
 939 {
 940 }
 941
 942 void wxShape::OnErase(wxDC& dc)
 943 {
 944   if (!m_visible)
 945     return;
 946
 947   // Erase links
 948   wxNode *current = m_lines.First();
 949   while (current)
 950   {
 951     wxLineShape *line = (wxLineShape *)current->Data();
 952     line->GetEventHandler()->OnErase(dc);
 953     current = current->Next();
 954   }
 955   GetEventHandler()->OnEraseContents(dc);
 956 }
 957
 958 void wxShape::OnEraseContents(wxDC& dc)
 959 {
 960   if (!m_visible)
 961     return;
 962
 963   double maxX, maxY, minX, minY;
 964   double xp = GetX();
 965   double yp = GetY();
 966   GetBoundingBoxMin(&minX, &minY);
 967   GetBoundingBoxMax(&maxX, &maxY);
 968   double topLeftX = (double)(xp - (maxX / 2.0) - 2.0);
 969   double topLeftY = (double)(yp - (maxY / 2.0) - 2.0);
 970
 971     int penWidth = 0;
 972     if (m_pen)
 973       penWidth = m_pen->GetWidth();
 974
 975     dc.SetPen(g_oglWhiteBackgroundPen);
 976     dc.SetBrush(g_oglWhiteBackgroundBrush);
 977     dc.DrawRectangle(WXROUND(topLeftX - penWidth), WXROUND(topLeftY - penWidth),
 978                       WXROUND(maxX + penWidth*2.0 + 4.0), WXROUND(maxY + penWidth*2.0 + 4.0));
 979 }
 980
 981 void wxShape::EraseLinks(wxDC& dc, int attachment, bool recurse)
 982 {
 983   if (!m_visible)
 984     return;
 985
 986   wxNode *current = m_lines.First();
 987   while (current)
 988   {
 989     wxLineShape *line = (wxLineShape *)current->Data();
 990     if (attachment == -1 || ((line->GetTo() == this && line->GetAttachmentTo() == attachment) ||
 991                              (line->GetFrom() == this && line->GetAttachmentFrom() == attachment)))
 992       line->GetEventHandler()->OnErase(dc);
 993     current = current->Next();
 994   }
 995   if (recurse)
 996   {
 997     wxNode *node = m_children.First();
 998     while (node)
 999     {
1000       wxShape *child = (wxShape *)node->Data();
1001       child->EraseLinks(dc, attachment, recurse);
1002       node = node->Next();
1003     }
1004   }
1005 }
1006
1007 void wxShape::DrawLinks(wxDC& dc, int attachment, bool recurse)
1008 {
1009   if (!m_visible)
1010     return;
1011
1012   wxNode *current = m_lines.First();
1013   while (current)
1014   {
1015     wxLineShape *line = (wxLineShape *)current->Data();
1016     if (attachment == -1 ||
1017         (line->GetTo() == this && line->GetAttachmentTo() == attachment) ||
1018         (line->GetFrom() == this && line->GetAttachmentFrom() == attachment))
1019       line->Draw(dc);
1020     current = current->Next();
1021   }
1022   if (recurse)
1023   {
1024     wxNode *node = m_children.First();
1025     while (node)
1026     {
1027       wxShape *child = (wxShape *)node->Data();
1028       child->DrawLinks(dc, attachment, recurse);
1029       node = node->Next();
1030     }
1031   }
1032 }
1033
1034 // Returns TRUE if pt1 <= pt2 in the sense that one point comes before another on an
1035 // edge of the shape.
1036 // attachmentPoint is the attachment point (= side) in question.
1037
1038 // This is the default, rectangular implementation.
1039 bool wxShape::AttachmentSortTest(int attachmentPoint, const wxRealPoint& pt1, const wxRealPoint& pt2)
1040 {
1041     switch (attachmentPoint)
1042     {
1043         case 0:
1044         case 2:
1045         {
1046           return (pt1.x <= pt2.x) ;
1047           break;
1048         }
1049         case 1:
1050         case 3:
1051         {
1052           return (pt1.y <= pt2.y) ;
1053           break;
1054         }
1055     }
1056
1057     return FALSE;
1058 }
1059
1060 bool wxShape::MoveLineToNewAttachment(wxDC& dc, wxLineShape *to_move,
1061                                        double x, double y)
1062 {
1063   if (!GetAttachmentMode())
1064       return FALSE;
1065
1066   int newAttachment, oldAttachment;
1067   double distance;
1068
1069   // Is (x, y) on this object? If so, find the new attachment point
1070   // the user has moved the point to
1071   bool hit = HitTest(x, y, &newAttachment, &distance);
1072   if (!hit)
1073     return FALSE;
1074
1075   EraseLinks(dc);
1076
1077   if (to_move->GetTo() == this)
1078     oldAttachment = to_move->GetAttachmentTo();
1079   else
1080     oldAttachment = to_move->GetAttachmentFrom();
1081
1082   // The links in a new ordering.
1083   wxList newOrdering;
1084
1085   // First, add all links to the new list.
1086   wxNode *node = m_lines.First();
1087   while (node)
1088   {
1089     newOrdering.Append(node->Data());
1090     node = node->Next();
1091   }
1092
1093   // Delete the line object from the list of links; we're going to move
1094   // it to another position in the list
1095   newOrdering.DeleteObject(to_move);
1096
1097   double old_x = (double) -99999.9;
1098   double old_y = (double) -99999.9;
1099
1100   node = newOrdering.First();
1101   bool found = FALSE;
1102
1103   while (!found && node)
1104   {
1105     wxLineShape *line = (wxLineShape *)node->Data();
1106     if ((line->GetTo() == this && oldAttachment == line->GetAttachmentTo()) ||
1107         (line->GetFrom() == this && oldAttachment == line->GetAttachmentFrom()))
1108     {
1109       double startX, startY, endX, endY;
1110       double xp, yp;
1111       line->GetEnds(&startX, &startY, &endX, &endY);
1112       if (line->GetTo() == this)
1113       {
1114         xp = endX;
1115         yp = endY;
1116       } else
1117       {
1118         xp = startX;
1119         yp = startY;
1120       }
1121
1122       wxRealPoint thisPoint(xp, yp);
1123       wxRealPoint lastPoint(old_x, old_y);
1124       wxRealPoint newPoint(x, y);
1125
1126       if (AttachmentSortTest(newAttachment, newPoint, thisPoint) && AttachmentSortTest(newAttachment, lastPoint, newPoint))
1127       {
1128         found = TRUE;
1129         newOrdering.Insert(node, to_move);
1130       }
1131
1132       old_x = xp;
1133       old_y = yp;
1134     }
1135     node = node->Next();
1136   }
1137
1138   if (!found)
1139     newOrdering.Append(to_move);
1140
1141   GetEventHandler()->OnChangeAttachment(newAttachment, to_move, newOrdering);
1142
1143   return TRUE;
1144 }
1145
1146 void wxShape::OnChangeAttachment(int attachment, wxLineShape* line, wxList& ordering)
1147 {
1148     if (line->GetTo() == this)
1149         line->SetAttachmentTo(attachment);
1150     else
1151         line->SetAttachmentFrom(attachment);
1152
1153     ApplyAttachmentOrdering(ordering);
1154
1155     wxClientDC dc(GetCanvas());
1156     GetCanvas()->PrepareDC(dc);
1157
1158     MoveLinks(dc);
1159
1160     if (!GetCanvas()->GetQuickEditMode()) GetCanvas()->Redraw(dc);
1161 }
1162
1163 // Reorders the lines according to the given list.
1164 void wxShape::ApplyAttachmentOrdering(wxList& linesToSort)
1165 {
1166   // This is a temporary store of all the lines.
1167   wxList linesStore;
1168
1169   wxNode *node = m_lines.First();
1170   while (node)
1171   {
1172     wxLineShape *line = (wxLineShape *)node->Data();
1173     linesStore.Append(line);
1174     node = node->Next();;
1175   }
1176
1177   m_lines.Clear();
1178
1179   node = linesToSort.First();
1180   while (node)
1181   {
1182     wxLineShape *line = (wxLineShape *)node->Data();
1183     if (linesStore.Member(line))
1184     {
1185       // Done this one
1186       linesStore.DeleteObject(line);
1187       m_lines.Append(line);
1188     }
1189     node = node->Next();
1190   }
1191
1192   // Now add any lines that haven't been listed in linesToSort.
1193   node = linesStore.First();
1194   while (node)
1195   {
1196     wxLineShape *line = (wxLineShape *)node->Data();
1197     m_lines.Append(line);
1198     node = node->Next();
1199   }
1200 }
1201
1202 // Reorders the lines coming into the node image at this attachment
1203 // position, in the order in which they appear in linesToSort.
1204 // Any remaining lines not in the list will be added to the end.
1205 void wxShape::SortLines(int attachment, wxList& linesToSort)
1206 {
1207   // This is a temporary store of all the lines at this attachment
1208   // point. We'll tick them off as we've processed them.
1209   wxList linesAtThisAttachment;
1210
1211   wxNode *node = m_lines.First();
1212   while (node)
1213   {
1214     wxLineShape *line = (wxLineShape *)node->Data();
1215     wxNode *next = node->Next();
1216     if ((line->GetTo() == this && line->GetAttachmentTo() == attachment) ||
1217         (line->GetFrom() == this && line->GetAttachmentFrom() == attachment))
1218     {
1219       linesAtThisAttachment.Append(line);
1220       delete node;
1221       node = next;
1222     }
1223     else node = node->Next();
1224   }
1225
1226   node = linesToSort.First();
1227   while (node)
1228   {
1229     wxLineShape *line = (wxLineShape *)node->Data();
1230     if (linesAtThisAttachment.Member(line))
1231     {
1232       // Done this one
1233       linesAtThisAttachment.DeleteObject(line);
1234       m_lines.Append(line);
1235     }
1236     node = node->Next();
1237   }
1238
1239   // Now add any lines that haven't been listed in linesToSort.
1240   node = linesAtThisAttachment.First();
1241   while (node)
1242   {
1243     wxLineShape *line = (wxLineShape *)node->Data();
1244     m_lines.Append(line);
1245     node = node->Next();
1246   }
1247 }
1248
1249 void wxShape::OnHighlight(wxDC& dc)
1250 {
1251 }
1252
1253 void wxShape::OnLeftClick(double x, double y, int keys, int attachment)
1254 {
1255   if ((m_sensitivity & OP_CLICK_LEFT) != OP_CLICK_LEFT)
1256   {
1257     attachment = 0;
1258     double dist;
1259     if (m_parent)
1260     {
1261       m_parent->HitTest(x, y, &attachment, &dist);
1262       m_parent->GetEventHandler()->OnLeftClick(x, y, keys, attachment);
1263     }
1264     return;
1265   }
1266 }
1267
1268 void wxShape::OnRightClick(double x, double y, int keys, int attachment)
1269 {
1270   if ((m_sensitivity & OP_CLICK_RIGHT) != OP_CLICK_RIGHT)
1271   {
1272     attachment = 0;
1273     double dist;
1274     if (m_parent)
1275     {
1276       m_parent->HitTest(x, y, &attachment, &dist);
1277       m_parent->GetEventHandler()->OnRightClick(x, y, keys, attachment);
1278     }
1279     return;
1280   }
1281 }
1282
1283 double DragOffsetX = 0.0;
1284 double DragOffsetY = 0.0;
1285
1286 void wxShape::OnDragLeft(bool draw, double x, double y, int keys, int attachment)
1287 {
1288   if ((m_sensitivity & OP_DRAG_LEFT) != OP_DRAG_LEFT)
1289   {
1290     attachment = 0;
1291     double dist;
1292     if (m_parent)
1293     {
1294       m_parent->HitTest(x, y, &attachment, &dist);
1295       m_parent->GetEventHandler()->OnDragLeft(draw, x, y, keys, attachment);
1296     }
1297     return;
1298   }
1299
1300   wxClientDC dc(GetCanvas());
1301   GetCanvas()->PrepareDC(dc);
1302
1303   dc.SetLogicalFunction(wxXOR);
1304
1305   wxPen dottedPen(wxColour(0, 0, 0), 1, wxDOT);
1306   dc.SetPen(dottedPen);
1307   dc.SetBrush(* wxTRANSPARENT_BRUSH);
1308
1309   double xx, yy;
1310   xx = x + DragOffsetX;
1311   yy = y + DragOffsetY;
1312
1313   m_canvas->Snap(&xx, &yy);
1314 //  m_xpos = xx; m_ypos = yy;
1315   double w, h;
1316   GetBoundingBoxMax(&w, &h);
1317   GetEventHandler()->OnDrawOutline(dc, xx, yy, w, h);
1318 }
1319
1320 void wxShape::OnBeginDragLeft(double x, double y, int keys, int attachment)
1321 {
1322   if ((m_sensitivity & OP_DRAG_LEFT) != OP_DRAG_LEFT)
1323   {
1324     attachment = 0;
1325     double dist;
1326     if (m_parent)
1327     {
1328       m_parent->HitTest(x, y, &attachment, &dist);
1329       m_parent->GetEventHandler()->OnBeginDragLeft(x, y, keys, attachment);
1330     }
1331     return;
1332   }
1333
1334   DragOffsetX = m_xpos - x;
1335   DragOffsetY = m_ypos - y;
1336
1337   wxClientDC dc(GetCanvas());
1338   GetCanvas()->PrepareDC(dc);
1339
1340   // New policy: don't erase shape until end of drag.
1341 //  Erase(dc);
1342
1343   double xx, yy;
1344   xx = x + DragOffsetX;
1345   yy = y + DragOffsetY;
1346   m_canvas->Snap(&xx, &yy);
1347 //  m_xpos = xx; m_ypos = yy;
1348   dc.SetLogicalFunction(wxXOR);
1349
1350   wxPen dottedPen(wxColour(0, 0, 0), 1, wxDOT);
1351   dc.SetPen(dottedPen);
1352   dc.SetBrush((* wxTRANSPARENT_BRUSH));
1353
1354   double w, h;
1355   GetBoundingBoxMax(&w, &h);
1356   GetEventHandler()->OnDrawOutline(dc, xx, yy, w, h);
1357   m_canvas->CaptureMouse();
1358 }
1359
1360 void wxShape::OnEndDragLeft(double x, double y, int keys, int attachment)
1361 {
1362   m_canvas->ReleaseMouse();
1363   if ((m_sensitivity & OP_DRAG_LEFT) != OP_DRAG_LEFT)
1364   {
1365     attachment = 0;
1366     double dist;
1367     if (m_parent)
1368     {
1369       m_parent->HitTest(x, y, &attachment, &dist);
1370       m_parent->GetEventHandler()->OnEndDragLeft(x, y, keys, attachment);
1371     }
1372     return;
1373   }
1374
1375   wxClientDC dc(GetCanvas());
1376   GetCanvas()->PrepareDC(dc);
1377
1378   dc.SetLogicalFunction(wxCOPY);
1379
1380   double xx = x + DragOffsetX;
1381   double yy = y + DragOffsetY;
1382   m_canvas->Snap(&xx, &yy);
1383 //  canvas->Snap(&m_xpos, &m_ypos);
1384
1385   // New policy: erase shape at end of drag.
1386   Erase(dc);
1387
1388   Move(dc, xx, yy);
1389   if (m_canvas && !m_canvas->GetQuickEditMode()) m_canvas->Redraw(dc);
1390 }
1391
1392 void wxShape::OnDragRight(bool draw, double x, double y, int keys, int attachment)
1393 {
1394   if ((m_sensitivity & OP_DRAG_RIGHT) != OP_DRAG_RIGHT)
1395   {
1396     attachment = 0;
1397     double dist;
1398     if (m_parent)
1399     {
1400       m_parent->HitTest(x, y, &attachment, &dist);
1401       m_parent->GetEventHandler()->OnDragRight(draw, x, y, keys, attachment);
1402     }
1403     return;
1404   }
1405 }
1406
1407 void wxShape::OnBeginDragRight(double x, double y, int keys, int attachment)
1408 {
1409   if ((m_sensitivity & OP_DRAG_RIGHT) != OP_DRAG_RIGHT)
1410   {
1411     attachment = 0;
1412     double dist;
1413     if (m_parent)
1414     {
1415       m_parent->HitTest(x, y, &attachment, &dist);
1416       m_parent->GetEventHandler()->OnBeginDragRight(x, y, keys, attachment);
1417     }
1418     return;
1419   }
1420 }
1421
1422 void wxShape::OnEndDragRight(double x, double y, int keys, int attachment)
1423 {
1424   if ((m_sensitivity & OP_DRAG_RIGHT) != OP_DRAG_RIGHT)
1425   {
1426     attachment = 0;
1427     double dist;
1428     if (m_parent)
1429     {
1430       m_parent->HitTest(x, y, &attachment, &dist);
1431       m_parent->GetEventHandler()->OnEndDragRight(x, y, keys, attachment);
1432     }
1433     return;
1434   }
1435 }
1436
1437 void wxShape::OnDrawOutline(wxDC& dc, double x, double y, double w, double h)
1438 {
1439   double top_left_x = (double)(x - w/2.0);
1440   double top_left_y = (double)(y - h/2.0);
1441   double top_right_x = (double)(top_left_x + w);
1442   double top_right_y = (double)top_left_y;
1443   double bottom_left_x = (double)top_left_x;
1444   double bottom_left_y = (double)(top_left_y + h);
1445   double bottom_right_x = (double)top_right_x;
1446   double bottom_right_y = (double)bottom_left_y;
1447
1448   wxPoint points[5];
1449   points[0].x = WXROUND(top_left_x); points[0].y = WXROUND(top_left_y);
1450   points[1].x = WXROUND(top_right_x); points[1].y = WXROUND(top_right_y);
1451   points[2].x = WXROUND(bottom_right_x); points[2].y = WXROUND(bottom_right_y);
1452   points[3].x = WXROUND(bottom_left_x); points[3].y = WXROUND(bottom_left_y);
1453   points[4].x = WXROUND(top_left_x); points[4].y = WXROUND(top_left_y);
1454
1455   dc.DrawLines(5, points);
1456 }
1457
1458 void wxShape::Attach(wxShapeCanvas *can)
1459 {
1460   m_canvas = can;
1461 }
1462
1463 void wxShape::Detach()
1464 {
1465   m_canvas = NULL;
1466 }
1467
1468 void wxShape::Move(wxDC& dc, double x, double y, bool display)
1469 {
1470   double old_x = m_xpos;
1471   double old_y = m_ypos;
1472
1473   if (!GetEventHandler()->OnMovePre(dc, x, y, old_x, old_y, display))
1474   {
1475 //    m_xpos = old_x;
1476 //    m_ypos = old_y;
1477     return;
1478   }
1479
1480   m_xpos = x; m_ypos = y;
1481
1482   ResetControlPoints();
1483
1484   if (display)
1485     Draw(dc);
1486
1487   MoveLinks(dc);
1488
1489   GetEventHandler()->OnMovePost(dc, x, y, old_x, old_y, display);
1490 }
1491
1492 void wxShape::MoveLinks(wxDC& dc)
1493 {
1494   GetEventHandler()->OnMoveLinks(dc);
1495 }
1496
1497
1498 void wxShape::Draw(wxDC& dc)
1499 {
1500   if (m_visible)
1501   {
1502     GetEventHandler()->OnDraw(dc);
1503     GetEventHandler()->OnDrawContents(dc);
1504     GetEventHandler()->OnDrawControlPoints(dc);
1505   }
1506 }
1507
1508 void wxShape::Flash()
1509 {
1510     if (GetCanvas())
1511     {
1512         wxClientDC dc(GetCanvas());
1513         GetCanvas()->PrepareDC(dc);
1514
1515         dc.SetLogicalFunction(wxXOR);
1516         Draw(dc);
1517         dc.SetLogicalFunction(wxCOPY);
1518         Draw(dc);
1519     }
1520 }
1521
1522 void wxShape::Show(bool show)
1523 {
1524   m_visible = show;
1525   wxNode *node = m_children.First();
1526   while (node)
1527   {
1528     wxShape *image = (wxShape *)node->Data();
1529     image->Show(show);
1530     node = node->Next();
1531   }
1532 }
1533
1534 void wxShape::Erase(wxDC& dc)
1535 {
1536   GetEventHandler()->OnErase(dc);
1537   GetEventHandler()->OnEraseControlPoints(dc);
1538 }
1539
1540 void wxShape::EraseContents(wxDC& dc)
1541 {
1542   GetEventHandler()->OnEraseContents(dc);
1543 }
1544
1545 void wxShape::AddText(const wxString& string)
1546 {
1547   wxNode *node = m_regions.First();
1548   if (!node)
1549     return;
1550   wxShapeRegion *region = (wxShapeRegion *)node->Data();
1551   region->ClearText();
1552   wxShapeTextLine *new_line =
1553       new wxShapeTextLine(0.0, 0.0, string);
1554   region->GetFormattedText().Append(new_line);
1555
1556   m_formatted = FALSE;
1557 }
1558
1559 void wxShape::SetSize(double x, double y, bool recursive)
1560 {
1561   SetAttachmentSize(x, y);
1562   SetDefaultRegionSize();
1563 }
1564
1565 void wxShape::SetAttachmentSize(double w, double h)
1566 {
1567   double scaleX;
1568   double scaleY;
1569   double width, height;
1570   GetBoundingBoxMin(&width, &height);
1571   if (width == 0.0)
1572     scaleX = 1.0;
1573   else scaleX = w/width;
1574   if (height == 0.0)
1575     scaleY = 1.0;
1576   else scaleY = h/height;
1577
1578   wxNode *node = m_attachmentPoints.First();
1579   while (node)
1580   {
1581     wxAttachmentPoint *point = (wxAttachmentPoint *)node->Data();
1582     point->m_x = (double)(point->m_x * scaleX);
1583     point->m_y = (double)(point->m_y * scaleY);
1584     node = node->Next();
1585   }
1586 }
1587
1588 // Add line FROM this object
1589 void wxShape::AddLine(wxLineShape *line, wxShape *other,
1590                             int attachFrom, int attachTo,
1591                             // The line ordering
1592                             int positionFrom, int positionTo)
1593 {
1594     if (positionFrom == -1)
1595     {
1596         if (!m_lines.Member(line))
1597             m_lines.Append(line);
1598     }
1599     else
1600     {
1601         // Don't preserve old ordering if we have new ordering instructions
1602         m_lines.DeleteObject(line);
1603         if (positionFrom < m_lines.Number())
1604         {
1605             wxNode* node = m_lines.Nth(positionFrom);
1606             m_lines.Insert(node, line);
1607         }
1608         else
1609             m_lines.Append(line);
1610     }
1611
1612     if (positionTo == -1)
1613     {
1614         if (!other->m_lines.Member(line))
1615             other->m_lines.Append(line);
1616     }
1617     else
1618     {
1619         // Don't preserve old ordering if we have new ordering instructions
1620         other->m_lines.DeleteObject(line);
1621         if (positionTo < other->m_lines.Number())
1622         {
1623             wxNode* node = other->m_lines.Nth(positionTo);
1624             other->m_lines.Insert(node, line);
1625         }
1626         else
1627             other->m_lines.Append(line);
1628     }
1629 #if 0
1630     // Wrong: doesn't preserve ordering of shape already linked
1631     m_lines.DeleteObject(line);
1632     other->m_lines.DeleteObject(line);
1633
1634     if (positionFrom == -1)
1635         m_lines.Append(line);
1636     else
1637     {
1638         if (positionFrom < m_lines.Number())
1639         {
1640             wxNode* node = m_lines.Nth(positionFrom);
1641             m_lines.Insert(node, line);
1642         }
1643         else
1644             m_lines.Append(line);
1645     }
1646
1647     if (positionTo == -1)
1648         other->m_lines.Append(line);
1649     else
1650     {
1651         if (positionTo < other->m_lines.Number())
1652         {
1653             wxNode* node = other->m_lines.Nth(positionTo);
1654             other->m_lines.Insert(node, line);
1655         }
1656         else
1657             other->m_lines.Append(line);
1658     }
1659 #endif
1660
1661     line->SetFrom(this);
1662     line->SetTo(other);
1663     line->SetAttachments(attachFrom, attachTo);
1664 }
1665
1666 void wxShape::RemoveLine(wxLineShape *line)
1667 {
1668   if (line->GetFrom() == this)
1669     line->GetTo()->m_lines.DeleteObject(line);
1670   else
1671    line->GetFrom()->m_lines.DeleteObject(line);
1672
1673   m_lines.DeleteObject(line);
1674 }
1675
1676 #ifdef PROLOGIO
1677 void wxShape::WriteAttributes(wxExpr *clause)
1678 {
1679   clause->AddAttributeValueString("type", GetClassInfo()->GetClassName());
1680   clause->AddAttributeValue("id", m_id);
1681
1682   if (m_pen)
1683   {
1684     int penWidth = m_pen->GetWidth();
1685     int penStyle = m_pen->GetStyle();
1686     if (penWidth != 1)
1687       clause->AddAttributeValue("pen_width", (long)penWidth);
1688     if (penStyle != wxSOLID)
1689       clause->AddAttributeValue("pen_style", (long)penStyle);
1690
1691     wxString penColour = wxTheColourDatabase->FindName(m_pen->GetColour());
1692     if (penColour == "")
1693     {
1694       wxString hex(oglColourToHex(m_pen->GetColour()));
1695       hex = wxString("#") + hex;
1696       clause->AddAttributeValueString("pen_colour", hex);
1697     }
1698     else if (penColour != "BLACK")
1699       clause->AddAttributeValueString("pen_colour", penColour);
1700   }
1701
1702   if (m_brush)
1703   {
1704     wxString brushColour = wxTheColourDatabase->FindName(m_brush->GetColour());
1705
1706     if (brushColour == "")
1707     {
1708       wxString hex(oglColourToHex(m_brush->GetColour()));
1709       hex = wxString("#") + hex;
1710       clause->AddAttributeValueString("brush_colour", hex);
1711     }
1712     else if (brushColour != "WHITE")
1713       clause->AddAttributeValueString("brush_colour", brushColour);
1714
1715     if (m_brush->GetStyle() != wxSOLID)
1716       clause->AddAttributeValue("brush_style", (long)m_brush->GetStyle());
1717   }
1718
1719   // Output line ids
1720
1721   int n_lines = m_lines.Number();
1722   if (n_lines > 0)
1723   {
1724     wxExpr *list = new wxExpr(wxExprList);
1725     wxNode *node = m_lines.First();
1726     while (node)
1727     {
1728       wxShape *line = (wxShape *)node->Data();
1729       wxExpr *id_expr = new wxExpr(line->GetId());
1730       list->Append(id_expr);
1731       node = node->Next();
1732     }
1733     clause->AddAttributeValue("arcs", list);
1734   }
1735
1736   // Miscellaneous members
1737   if (m_attachmentMode != 0)
1738     clause->AddAttributeValue("use_attachments", (long)m_attachmentMode);
1739   if (m_sensitivity != OP_ALL)
1740     clause->AddAttributeValue("sensitivity", (long)m_sensitivity);
1741   if (!m_spaceAttachments)
1742     clause->AddAttributeValue("space_attachments", (long)m_spaceAttachments);
1743   if (m_fixedWidth)
1744     clause->AddAttributeValue("fixed_width", (long)m_fixedWidth);
1745   if (m_fixedHeight)
1746     clause->AddAttributeValue("fixed_height", (long)m_fixedHeight);
1747   if (m_shadowMode != SHADOW_NONE)
1748     clause->AddAttributeValue("shadow_mode", (long)m_shadowMode);
1749   if (m_centreResize != TRUE)
1750     clause->AddAttributeValue("centre_resize", (long)0);
1751   clause->AddAttributeValue("maintain_aspect_ratio", (long) m_maintainAspectRatio);
1752   if (m_highlighted != FALSE)
1753     clause->AddAttributeValue("hilite", (long)m_highlighted);
1754
1755   if (m_parent) // For composite objects
1756     clause->AddAttributeValue("parent", (long)m_parent->GetId());
1757
1758   if (m_rotation != 0.0)
1759     clause->AddAttributeValue("rotation", m_rotation);
1760
1761   // Write user-defined attachment points, if any
1762   if (m_attachmentPoints.Number() > 0)
1763   {
1764     wxExpr *attachmentList = new wxExpr(wxExprList);
1765     wxNode *node = m_attachmentPoints.First();
1766     while (node)
1767     {
1768       wxAttachmentPoint *point = (wxAttachmentPoint *)node->Data();
1769       wxExpr *pointExpr = new wxExpr(wxExprList);
1770       pointExpr->Append(new wxExpr((long)point->m_id));
1771       pointExpr->Append(new wxExpr(point->m_x));
1772       pointExpr->Append(new wxExpr(point->m_y));
1773       attachmentList->Append(pointExpr);
1774       node = node->Next();
1775     }
1776     clause->AddAttributeValue("user_attachments", attachmentList);
1777   }
1778
1779   // Write text regions
1780   WriteRegions(clause);
1781 }
1782
1783 void wxShape::WriteRegions(wxExpr *clause)
1784 {
1785   // Output regions as region1 = (...), region2 = (...), etc
1786   // and formatted text as text1 = (...), text2 = (...) etc.
1787   int regionNo = 1;
1788   char regionNameBuf[20];
1789   char textNameBuf[20];
1790   wxNode *node = m_regions.First();
1791   while (node)
1792   {
1793     wxShapeRegion *region = (wxShapeRegion *)node->Data();
1794     sprintf(regionNameBuf, "region%d", regionNo);
1795     sprintf(textNameBuf, "text%d", regionNo);
1796
1797     // Original text and region attributes:
1798     // region1 = (regionName regionText x y width height minWidth minHeight proportionX proportionY
1799     //            formatMode fontSize fontFamily fontStyle fontWeight textColour)
1800     wxExpr *regionExpr = new wxExpr(wxExprList);
1801     regionExpr->Append(new wxExpr(wxExprString, (region->m_regionName ? region->m_regionName : "")));
1802     regionExpr->Append(new wxExpr(wxExprString, (region->m_regionText ? region->m_regionText : "")));
1803
1804     regionExpr->Append(new wxExpr(region->m_x));
1805     regionExpr->Append(new wxExpr(region->m_y));
1806     regionExpr->Append(new wxExpr(region->GetWidth()));
1807     regionExpr->Append(new wxExpr(region->GetHeight()));
1808
1809     regionExpr->Append(new wxExpr(region->m_minWidth));
1810     regionExpr->Append(new wxExpr(region->m_minHeight));
1811     regionExpr->Append(new wxExpr(region->m_regionProportionX));
1812     regionExpr->Append(new wxExpr(region->m_regionProportionY));
1813
1814     regionExpr->Append(new wxExpr((long)region->m_formatMode));
1815
1816     regionExpr->Append(new wxExpr((long)(region->m_font ? region->m_font->GetPointSize() : 10)));
1817     regionExpr->Append(new wxExpr((long)(region->m_font ? region->m_font->GetFamily() : wxDEFAULT)));
1818     regionExpr->Append(new wxExpr((long)(region->m_font ? region->m_font->GetStyle() : wxDEFAULT)));
1819     regionExpr->Append(new wxExpr((long)(region->m_font ? region->m_font->GetWeight() : wxNORMAL)));
1820     regionExpr->Append(new wxExpr(wxExprString, region->m_textColour ? region->m_textColour : "BLACK"));
1821
1822     // New members for pen colour/style
1823     regionExpr->Append(new wxExpr(wxExprString, region->m_penColour ? region->m_penColour : "BLACK"));
1824     regionExpr->Append(new wxExpr((long)region->m_penStyle));
1825
1826     // Formatted text:
1827     // text1 = ((x y string) (x y string) ...)
1828     wxExpr *textExpr = new wxExpr(wxExprList);
1829
1830     wxNode *textNode = region->m_formattedText.First();
1831     while (textNode)
1832     {
1833       wxShapeTextLine *line = (wxShapeTextLine *)textNode->Data();
1834       wxExpr *list2 = new wxExpr(wxExprList);
1835       list2->Append(new wxExpr(line->GetX()));
1836       list2->Append(new wxExpr(line->GetY()));
1837       list2->Append(new wxExpr(wxExprString, line->GetText()));
1838       textExpr->Append(list2);
1839       textNode = textNode->Next();
1840     }
1841
1842     // Now add both attributes to the clause
1843     clause->AddAttributeValue(regionNameBuf, regionExpr);
1844     clause->AddAttributeValue(textNameBuf, textExpr);
1845
1846     node = node->Next();
1847     regionNo ++;
1848   }
1849 }
1850
1851 void wxShape::ReadAttributes(wxExpr *clause)
1852 {
1853   clause->GetAttributeValue("id", m_id);
1854   RegisterId(m_id);
1855
1856   clause->GetAttributeValue("x", m_xpos);
1857   clause->GetAttributeValue("y", m_ypos);
1858
1859   // Input text strings (FOR COMPATIBILITY WITH OLD FILES ONLY. SEE REGION CODE BELOW.)
1860   ClearText();
1861   wxExpr *strings = clause->AttributeValue("text");
1862   if (strings && strings->Type() == wxExprList)
1863   {
1864     m_formatted = TRUE;  // Assume text is formatted unless we prove otherwise
1865     wxExpr *node = strings->value.first;
1866     while (node)
1867     {
1868       wxExpr *string_expr = node;
1869       double the_x = 0.0;
1870       double the_y = 0.0;
1871       wxString the_string("");
1872
1873       // string_expr can either be a string, or a list of
1874       // 3 elements: x, y, and string.
1875       if (string_expr->Type() == wxExprString)
1876       {
1877         the_string = string_expr->StringValue();
1878         m_formatted = FALSE;
1879       }
1880       else if (string_expr->Type() == wxExprList)
1881       {
1882         wxExpr *first = string_expr->value.first;
1883         wxExpr *second = first ? first->next : NULL;
1884         wxExpr *third = second ? second->next : NULL;
1885
1886         if (first && second && third &&
1887             (first->Type() == wxExprReal || first->Type() == wxExprInteger) &&
1888             (second->Type() == wxExprReal || second->Type() == wxExprInteger) &&
1889             third->Type() == wxExprString)
1890           {
1891             if (first->Type() == wxExprReal)
1892               the_x = first->RealValue();
1893             else the_x = (double)first->IntegerValue();
1894
1895             if (second->Type() == wxExprReal)
1896               the_y = second->RealValue();
1897             else the_y = (double)second->IntegerValue();
1898
1899             the_string = third->StringValue();
1900           }
1901       }
1902       wxShapeTextLine *line =
1903             new wxShapeTextLine(the_x, the_y, (char*) (const char*) the_string);
1904       m_text.Append(line);
1905
1906       node = node->next;
1907     }
1908   }
1909
1910   wxString pen_string = "";
1911   wxString brush_string = "";
1912   int pen_width = 1;
1913   int pen_style = wxSOLID;
1914   int brush_style = wxSOLID;
1915   m_attachmentMode = FALSE;
1916
1917   clause->GetAttributeValue("pen_colour", pen_string);
1918   clause->GetAttributeValue("text_colour", m_textColourName);
1919
1920   SetTextColour(m_textColourName);
1921
1922   clause->GetAttributeValue("region_name", m_regionName);
1923
1924   clause->GetAttributeValue("brush_colour", brush_string);
1925   clause->GetAttributeValue("pen_width", pen_width);
1926   clause->GetAttributeValue("pen_style", pen_style);
1927   clause->GetAttributeValue("brush_style", brush_style);
1928
1929   int iVal = (int) m_attachmentMode;
1930   clause->GetAttributeValue("use_attachments", iVal);
1931   m_attachmentMode = (iVal != 0);
1932
1933   clause->GetAttributeValue("sensitivity", m_sensitivity);
1934
1935   iVal = (int) m_spaceAttachments;
1936   clause->GetAttributeValue("space_attachments", iVal);
1937   m_spaceAttachments = (iVal != 0);
1938
1939   iVal = (int) m_fixedWidth;
1940   clause->GetAttributeValue("fixed_width", iVal);
1941   m_fixedWidth = (iVal != 0);
1942
1943   iVal = (int) m_fixedHeight;
1944   clause->GetAttributeValue("fixed_height", iVal);
1945   m_fixedHeight = (iVal != 0);
1946
1947   clause->GetAttributeValue("format_mode", m_formatMode);
1948   clause->GetAttributeValue("shadow_mode", m_shadowMode);
1949
1950   iVal = (int) m_centreResize;
1951   clause->GetAttributeValue("centre_resize", iVal);
1952   m_centreResize = (iVal != 0);
1953
1954   iVal = (int) m_maintainAspectRatio;
1955   clause->GetAttributeValue("maintain_aspect_ratio", iVal);
1956   m_maintainAspectRatio = (iVal != 0);
1957
1958   iVal = (int) m_highlighted;
1959   clause->GetAttributeValue("hilite", iVal);
1960   m_highlighted = (iVal != 0);
1961
1962   clause->GetAttributeValue("rotation", m_rotation);
1963
1964   if (pen_string == "")
1965     pen_string = "BLACK";
1966   if (brush_string == "")
1967     brush_string = "WHITE";
1968
1969   if (pen_string[0] == '#')
1970   {
1971     wxColour col(oglHexToColour(pen_string.After('#')));
1972     m_pen = wxThePenList->FindOrCreatePen(col, pen_width, pen_style);
1973   }
1974   else
1975     m_pen = wxThePenList->FindOrCreatePen(pen_string, pen_width, pen_style);
1976
1977   if (!m_pen)
1978     m_pen = wxBLACK_PEN;
1979
1980   if (brush_string[0] == '#')
1981   {
1982     wxColour col(oglHexToColour(brush_string.After('#')));
1983     m_brush = wxTheBrushList->FindOrCreateBrush(col, brush_style);
1984   }
1985   else
1986     m_brush = wxTheBrushList->FindOrCreateBrush(brush_string, brush_style);
1987
1988   if (!m_brush)
1989     m_brush = wxWHITE_BRUSH;
1990
1991   int point_size = 10;
1992   clause->GetAttributeValue("point_size", point_size);
1993   SetFont(oglMatchFont(point_size));
1994
1995   // Read user-defined attachment points, if any
1996   wxExpr *attachmentList = clause->AttributeValue("user_attachments");
1997   if (attachmentList)
1998   {
1999     wxExpr *pointExpr = attachmentList->GetFirst();
2000     while (pointExpr)
2001     {
2002       wxExpr *idExpr = pointExpr->Nth(0);
2003       wxExpr *xExpr = pointExpr->Nth(1);
2004       wxExpr *yExpr = pointExpr->Nth(2);
2005       if (idExpr && xExpr && yExpr)
2006       {
2007         wxAttachmentPoint *point = new wxAttachmentPoint;
2008         point->m_id = (int)idExpr->IntegerValue();
2009         point->m_x = xExpr->RealValue();
2010         point->m_y = yExpr->RealValue();
2011         m_attachmentPoints.Append((wxObject *)point);
2012       }
2013       pointExpr = pointExpr->GetNext();
2014     }
2015   }
2016
2017   // Read text regions
2018   ReadRegions(clause);
2019 }
2020
2021 void wxShape::ReadRegions(wxExpr *clause)
2022 {
2023   ClearRegions();
2024
2025   // region1 = (regionName regionText x y width height minWidth minHeight proportionX proportionY
2026   //            formatMode fontSize fontFamily fontStyle fontWeight textColour)
2027   int regionNo = 1;
2028   char regionNameBuf[20];
2029   char textNameBuf[20];
2030
2031   wxExpr *regionExpr = NULL;
2032   wxExpr *textExpr = NULL;
2033   sprintf(regionNameBuf, "region%d", regionNo);
2034   sprintf(textNameBuf, "text%d", regionNo);
2035
2036   m_formatted = TRUE;  // Assume text is formatted unless we prove otherwise
2037
2038   while (regionExpr = clause->AttributeValue(regionNameBuf))
2039   {
2040     /*
2041      * Get the region information
2042      *
2043      */
2044
2045     wxString regionName("");
2046     wxString regionText("");
2047     double x = 0.0;
2048     double y = 0.0;
2049     double width = 0.0;
2050     double height = 0.0;
2051     double minWidth = 5.0;
2052     double minHeight = 5.0;
2053     double m_regionProportionX = -1.0;
2054     double m_regionProportionY = -1.0;
2055     int formatMode = FORMAT_NONE;
2056     int fontSize = 10;
2057     int fontFamily = wxSWISS;
2058     int fontStyle = wxNORMAL;
2059     int fontWeight = wxNORMAL;
2060     wxString regionTextColour("");
2061     wxString penColour("");
2062     int penStyle = wxSOLID;
2063
2064     if (regionExpr->Type() == wxExprList)
2065     {
2066       wxExpr *nameExpr = regionExpr->Nth(0);
2067       wxExpr *textExpr = regionExpr->Nth(1);
2068       wxExpr *xExpr = regionExpr->Nth(2);
2069       wxExpr *yExpr = regionExpr->Nth(3);
2070       wxExpr *widthExpr = regionExpr->Nth(4);
2071       wxExpr *heightExpr = regionExpr->Nth(5);
2072       wxExpr *minWidthExpr = regionExpr->Nth(6);
2073       wxExpr *minHeightExpr = regionExpr->Nth(7);
2074       wxExpr *propXExpr = regionExpr->Nth(8);
2075       wxExpr *propYExpr = regionExpr->Nth(9);
2076       wxExpr *formatExpr = regionExpr->Nth(10);
2077       wxExpr *sizeExpr = regionExpr->Nth(11);
2078       wxExpr *familyExpr = regionExpr->Nth(12);
2079       wxExpr *styleExpr = regionExpr->Nth(13);
2080       wxExpr *weightExpr = regionExpr->Nth(14);
2081       wxExpr *colourExpr = regionExpr->Nth(15);
2082       wxExpr *penColourExpr = regionExpr->Nth(16);
2083       wxExpr *penStyleExpr = regionExpr->Nth(17);
2084
2085       regionName = nameExpr->StringValue();
2086       regionText = textExpr->StringValue();
2087
2088       x = xExpr->RealValue();
2089       y = yExpr->RealValue();
2090
2091       width = widthExpr->RealValue();
2092       height = heightExpr->RealValue();
2093
2094       minWidth = minWidthExpr->RealValue();
2095       minHeight = minHeightExpr->RealValue();
2096
2097       m_regionProportionX = propXExpr->RealValue();
2098       m_regionProportionY = propYExpr->RealValue();
2099
2100       formatMode = (int) formatExpr->IntegerValue();
2101       fontSize = (int)sizeExpr->IntegerValue();
2102       fontFamily = (int)familyExpr->IntegerValue();
2103       fontStyle = (int)styleExpr->IntegerValue();
2104       fontWeight = (int)weightExpr->IntegerValue();
2105
2106       if (colourExpr)
2107       {
2108         regionTextColour = colourExpr->StringValue();
2109       }
2110       else
2111         regionTextColour = "BLACK";
2112
2113       if (penColourExpr)
2114         penColour = penColourExpr->StringValue();
2115       if (penStyleExpr)
2116         penStyle = (int)penStyleExpr->IntegerValue();
2117     }
2118     wxFont *font = wxTheFontList->FindOrCreateFont(fontSize, fontFamily, fontStyle, fontWeight);
2119
2120     wxShapeRegion *region = new wxShapeRegion;
2121     region->SetProportions(m_regionProportionX, m_regionProportionY);
2122     region->SetFont(font);
2123     region->SetSize(width, height);
2124     region->SetPosition(x, y);
2125     region->SetMinSize(minWidth, minHeight);
2126     region->SetFormatMode(formatMode);
2127     region->SetPenStyle(penStyle);
2128     if (penColour != "")
2129       region->SetPenColour(penColour);
2130
2131     region->m_textColour = regionTextColour;
2132     region->m_regionText = regionText;
2133     region->m_regionName = regionName;
2134
2135     m_regions.Append(region);
2136
2137     /*
2138      * Get the formatted text strings
2139      *
2140      */
2141     textExpr = clause->AttributeValue(textNameBuf);
2142     if (textExpr && (textExpr->Type() == wxExprList))
2143     {
2144       wxExpr *node = textExpr->value.first;
2145       while (node)
2146       {
2147         wxExpr *string_expr = node;
2148         double the_x = 0.0;
2149         double the_y = 0.0;
2150         wxString the_string("");
2151
2152         // string_expr can either be a string, or a list of
2153         // 3 elements: x, y, and string.
2154         if (string_expr->Type() == wxExprString)
2155         {
2156           the_string = string_expr->StringValue();
2157           m_formatted = FALSE;
2158         }
2159         else if (string_expr->Type() == wxExprList)
2160         {
2161           wxExpr *first = string_expr->value.first;
2162           wxExpr *second = first ? first->next : NULL;
2163           wxExpr *third = second ? second->next : NULL;
2164
2165           if (first && second && third &&
2166               (first->Type() == wxExprReal || first->Type() == wxExprInteger) &&
2167               (second->Type() == wxExprReal || second->Type() == wxExprInteger) &&
2168               third->Type() == wxExprString)
2169           {
2170             if (first->Type() == wxExprReal)
2171               the_x = first->RealValue();
2172             else the_x = (double)first->IntegerValue();
2173
2174             if (second->Type() == wxExprReal)
2175               the_y = second->RealValue();
2176             else the_y = (double)second->IntegerValue();
2177
2178             the_string = third->StringValue();
2179           }
2180         }
2181         if (the_string)
2182         {
2183           wxShapeTextLine *line =
2184               new wxShapeTextLine(the_x, the_y, (char*) (const char*) the_string);
2185           region->m_formattedText.Append(line);
2186         }
2187         node = node->next;
2188       }
2189     }
2190
2191     regionNo ++;
2192     sprintf(regionNameBuf, "region%d", regionNo);
2193     sprintf(textNameBuf, "text%d", regionNo);
2194   }
2195
2196   // Compatibility: check for no regions (old file).
2197   // Lines and divided rectangles must deal with this compatibility
2198   // theirselves. Composites _may_ not have any regions anyway.
2199   if ((m_regions.Number() == 0) &&
2200       !this->IsKindOf(CLASSINFO(wxLineShape)) && !this->IsKindOf(CLASSINFO(wxDividedShape)) &&
2201       !this->IsKindOf(CLASSINFO(wxCompositeShape)))
2202   {
2203     wxShapeRegion *newRegion = new wxShapeRegion;
2204     newRegion->SetName("0");
2205     m_regions.Append((wxObject *)newRegion);
2206     if (m_text.Number() > 0)
2207     {
2208       newRegion->ClearText();
2209       wxNode *node = m_text.First();
2210       while (node)
2211       {
2212         wxShapeTextLine *textLine = (wxShapeTextLine *)node->Data();
2213         wxNode *next = node->Next();
2214         newRegion->GetFormattedText().Append((wxObject *)textLine);
2215         delete node;
2216         node = next;
2217       }
2218     }
2219   }
2220 }
2221
2222 #endif
2223
2224 void wxShape::Copy(wxShape& copy)
2225 {
2226   copy.m_id = m_id;
2227   copy.m_xpos = m_xpos;
2228   copy.m_ypos = m_ypos;
2229   copy.m_pen = m_pen;
2230   copy.m_brush = m_brush;
2231   copy.m_textColour = m_textColour;
2232   copy.m_centreResize = m_centreResize;
2233   copy.m_maintainAspectRatio = m_maintainAspectRatio;
2234   copy.m_attachmentMode = m_attachmentMode;
2235   copy.m_spaceAttachments = m_spaceAttachments;
2236   copy.m_highlighted = m_highlighted;
2237   copy.m_rotation = m_rotation;
2238   copy.m_textColourName = m_textColourName;
2239   copy.m_regionName = m_regionName;
2240
2241   copy.m_sensitivity = m_sensitivity;
2242   copy.m_draggable = m_draggable;
2243   copy.m_fixedWidth = m_fixedWidth;
2244   copy.m_fixedHeight = m_fixedHeight;
2245   copy.m_formatMode = m_formatMode;
2246   copy.m_drawHandles = m_drawHandles;
2247
2248   copy.m_visible = m_visible;
2249   copy.m_shadowMode = m_shadowMode;
2250   copy.m_shadowOffsetX = m_shadowOffsetX;
2251   copy.m_shadowOffsetY = m_shadowOffsetY;
2252   copy.m_shadowBrush = m_shadowBrush;
2253
2254   // Copy text regions
2255   copy.ClearRegions();
2256   wxNode *node = m_regions.First();
2257   while (node)
2258   {
2259     wxShapeRegion *region = (wxShapeRegion *)node->Data();
2260     wxShapeRegion *newRegion = new wxShapeRegion(*region);
2261     copy.m_regions.Append(newRegion);
2262     node = node->Next();
2263   }
2264
2265   // Copy attachments
2266   copy.ClearAttachments();
2267   node = m_attachmentPoints.First();
2268   while (node)
2269   {
2270     wxAttachmentPoint *point = (wxAttachmentPoint *)node->Data();
2271     wxAttachmentPoint *newPoint = new wxAttachmentPoint;
2272     newPoint->m_id = point->m_id;
2273     newPoint->m_x = point->m_x;
2274     newPoint->m_y = point->m_y;
2275     copy.m_attachmentPoints.Append((wxObject *)newPoint);
2276     node = node->Next();
2277   }
2278
2279   // Copy lines
2280   copy.m_lines.Clear();
2281   node = m_lines.First();
2282   while (node)
2283   {
2284     wxLineShape* line = (wxLineShape*) node->Data();
2285     copy.m_lines.Append(line);
2286     node = node->Next();
2287   }
2288 }
2289
2290 // Create and return a new, fully copied object.
2291 wxShape *wxShape::CreateNewCopy(bool resetMapping, bool recompute)
2292 {
2293   if (resetMapping)
2294     oglObjectCopyMapping.Clear();
2295
2296   wxShape* newObject = (wxShape*) GetClassInfo()->CreateObject();
2297
2298   wxASSERT( (newObject != NULL) );
2299   wxASSERT( (newObject->IsKindOf(CLASSINFO(wxShape))) );
2300
2301   Copy(*newObject);
2302
2303   if (GetEventHandler() != this)
2304   {
2305     wxShapeEvtHandler* newHandler = GetEventHandler()->CreateNewCopy();
2306     newObject->SetEventHandler(newHandler);
2307     newObject->SetPreviousHandler(NULL);
2308     newHandler->SetPreviousHandler(newObject);
2309     newHandler->SetShape(newObject);
2310   }
2311
2312   if (recompute)
2313     newObject->Recompute();
2314   return newObject;
2315 }
2316
2317 // Does the copying for this object, including copying event
2318 // handler data if any. Calls the virtual Copy function.
2319 void wxShape::CopyWithHandler(wxShape& copy)
2320 {
2321     Copy(copy);
2322
2323     if (GetEventHandler() != this)
2324     {
2325         wxASSERT( copy.GetEventHandler() != NULL );
2326         wxASSERT( copy.GetEventHandler() != (&copy) );
2327         wxASSERT( GetEventHandler()->GetClassInfo() == copy.GetEventHandler()->GetClassInfo() );
2328         GetEventHandler()->CopyData(* (copy.GetEventHandler()));
2329     }
2330 }
2331
2332
2333 // Default - make 6 control points
2334 void wxShape::MakeControlPoints()
2335 {
2336   double maxX, maxY, minX, minY;
2337
2338   GetBoundingBoxMax(&maxX, &maxY);
2339   GetBoundingBoxMin(&minX, &minY);
2340
2341   double widthMin = (double)(minX + CONTROL_POINT_SIZE + 2);
2342   double heightMin = (double)(minY + CONTROL_POINT_SIZE + 2);
2343
2344   // Offsets from main object
2345   double top = (double)(- (heightMin / 2.0));
2346   double bottom = (double)(heightMin / 2.0 + (maxY - minY));
2347   double left = (double)(- (widthMin / 2.0));
2348   double right = (double)(widthMin / 2.0 + (maxX - minX));
2349
2350   wxControlPoint *control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, left, top,
2351                                            CONTROL_POINT_DIAGONAL);
2352   m_canvas->AddShape(control);
2353   m_controlPoints.Append(control);
2354
2355   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, 0, top,
2356                                            CONTROL_POINT_VERTICAL);
2357   m_canvas->AddShape(control);
2358   m_controlPoints.Append(control);
2359
2360   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, right, top,
2361                                            CONTROL_POINT_DIAGONAL);
2362   m_canvas->AddShape(control);
2363   m_controlPoints.Append(control);
2364
2365   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, right, 0,
2366                                            CONTROL_POINT_HORIZONTAL);
2367   m_canvas->AddShape(control);
2368   m_controlPoints.Append(control);
2369
2370   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, right, bottom,
2371                                            CONTROL_POINT_DIAGONAL);
2372   m_canvas->AddShape(control);
2373   m_controlPoints.Append(control);
2374
2375   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, 0, bottom,
2376                                            CONTROL_POINT_VERTICAL);
2377   m_canvas->AddShape(control);
2378   m_controlPoints.Append(control);
2379
2380   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, left, bottom,
2381                                            CONTROL_POINT_DIAGONAL);
2382   m_canvas->AddShape(control);
2383   m_controlPoints.Append(control);
2384
2385   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, left, 0,
2386                                            CONTROL_POINT_HORIZONTAL);
2387   m_canvas->AddShape(control);
2388   m_controlPoints.Append(control);
2389
2390 }
2391
2392 void wxShape::MakeMandatoryControlPoints()
2393 {
2394   wxNode *node = m_children.First();
2395   while (node)
2396   {
2397     wxShape *child = (wxShape *)node->Data();
2398     child->MakeMandatoryControlPoints();
2399     node = node->Next();
2400   }
2401 }
2402
2403 void wxShape::ResetMandatoryControlPoints()
2404 {
2405   wxNode *node = m_children.First();
2406   while (node)
2407   {
2408     wxShape *child = (wxShape *)node->Data();
2409     child->ResetMandatoryControlPoints();
2410     node = node->Next();
2411   }
2412 }
2413
2414 void wxShape::ResetControlPoints()
2415 {
2416   ResetMandatoryControlPoints();
2417
2418   if (m_controlPoints.Number() < 1)
2419     return;
2420
2421   double maxX, maxY, minX, minY;
2422
2423   GetBoundingBoxMax(&maxX, &maxY);
2424   GetBoundingBoxMin(&minX, &minY);
2425
2426   double widthMin = (double)(minX + CONTROL_POINT_SIZE + 2);
2427   double heightMin = (double)(minY + CONTROL_POINT_SIZE + 2);
2428
2429   // Offsets from main object
2430   double top = (double)(- (heightMin / 2.0));
2431   double bottom = (double)(heightMin / 2.0 + (maxY - minY));
2432   double left = (double)(- (widthMin / 2.0));
2433   double right = (double)(widthMin / 2.0 + (maxX - minX));
2434
2435   wxNode *node = m_controlPoints.First();
2436   wxControlPoint *control = (wxControlPoint *)node->Data();
2437   control->m_xoffset = left; control->m_yoffset = top;
2438
2439   node = node->Next(); control = (wxControlPoint *)node->Data();
2440   control->m_xoffset = 0; control->m_yoffset = top;
2441
2442   node = node->Next(); control = (wxControlPoint *)node->Data();
2443   control->m_xoffset = right; control->m_yoffset = top;
2444
2445   node = node->Next(); control = (wxControlPoint *)node->Data();
2446   control->m_xoffset = right; control->m_yoffset = 0;
2447
2448   node = node->Next(); control = (wxControlPoint *)node->Data();
2449   control->m_xoffset = right; control->m_yoffset = bottom;
2450
2451   node = node->Next(); control = (wxControlPoint *)node->Data();
2452   control->m_xoffset = 0; control->m_yoffset = bottom;
2453
2454   node = node->Next(); control = (wxControlPoint *)node->Data();
2455   control->m_xoffset = left; control->m_yoffset = bottom;
2456
2457   node = node->Next(); control = (wxControlPoint *)node->Data();
2458   control->m_xoffset = left; control->m_yoffset = 0;
2459 }
2460
2461 void wxShape::DeleteControlPoints(wxDC *dc)
2462 {
2463   wxNode *node = m_controlPoints.First();
2464   while (node)
2465   {
2466     wxControlPoint *control = (wxControlPoint *)node->Data();
2467     if (dc)
2468         control->GetEventHandler()->OnErase(*dc);
2469     m_canvas->RemoveShape(control);
2470     delete control;
2471     delete node;
2472     node = m_controlPoints.First();
2473   }
2474   // Children of divisions are contained objects,
2475   // so stop here
2476   if (!IsKindOf(CLASSINFO(wxDivisionShape)))
2477   {
2478     node = m_children.First();
2479     while (node)
2480     {
2481       wxShape *child = (wxShape *)node->Data();
2482       child->DeleteControlPoints(dc);
2483       node = node->Next();
2484     }
2485   }
2486 }
2487
2488 void wxShape::OnDrawControlPoints(wxDC& dc)
2489 {
2490   if (!m_drawHandles)
2491     return;
2492
2493   dc.SetBrush(wxBLACK_BRUSH);
2494   dc.SetPen(wxBLACK_PEN);
2495
2496   wxNode *node = m_controlPoints.First();
2497   while (node)
2498   {
2499     wxControlPoint *control = (wxControlPoint *)node->Data();
2500     control->Draw(dc);
2501     node = node->Next();
2502   }
2503   // Children of divisions are contained objects,
2504   // so stop here.
2505   // This test bypasses the type facility for speed
2506   // (critical when drawing)
2507   if (!IsKindOf(CLASSINFO(wxDivisionShape)))
2508   {
2509     node = m_children.First();
2510     while (node)
2511     {
2512       wxShape *child = (wxShape *)node->Data();
2513       child->GetEventHandler()->OnDrawControlPoints(dc);
2514       node = node->Next();
2515     }
2516   }
2517 }
2518
2519 void wxShape::OnEraseControlPoints(wxDC& dc)
2520 {
2521   wxNode *node = m_controlPoints.First();
2522   while (node)
2523   {
2524     wxControlPoint *control = (wxControlPoint *)node->Data();
2525     control->Erase(dc);
2526     node = node->Next();
2527   }
2528   if (!IsKindOf(CLASSINFO(wxDivisionShape)))
2529   {
2530     node = m_children.First();
2531     while (node)
2532     {
2533       wxShape *child = (wxShape *)node->Data();
2534       child->GetEventHandler()->OnEraseControlPoints(dc);
2535       node = node->Next();
2536     }
2537   }
2538 }
2539
2540 void wxShape::Select(bool select, wxDC* dc)
2541 {
2542   m_selected = select;
2543   if (select)
2544   {
2545     MakeControlPoints();
2546     // Children of divisions are contained objects,
2547     // so stop here
2548     if (!IsKindOf(CLASSINFO(wxDivisionShape)))
2549     {
2550       wxNode *node = m_children.First();
2551       while (node)
2552       {
2553         wxShape *child = (wxShape *)node->Data();
2554         child->MakeMandatoryControlPoints();
2555         node = node->Next();
2556       }
2557     }
2558     if (dc)
2559         GetEventHandler()->OnDrawControlPoints(*dc);
2560   }
2561   if (!select)
2562   {
2563     DeleteControlPoints(dc);
2564     if (!IsKindOf(CLASSINFO(wxDivisionShape)))
2565     {
2566       wxNode *node = m_children.First();
2567       while (node)
2568       {
2569         wxShape *child = (wxShape *)node->Data();
2570         child->DeleteControlPoints(dc);
2571         node = node->Next();
2572       }
2573     }
2574   }
2575 }
2576
2577 bool wxShape::Selected() const
2578 {
2579   return m_selected;
2580 }
2581
2582 bool wxShape::AncestorSelected() const
2583 {
2584   if (m_selected) return TRUE;
2585   if (!GetParent())
2586     return FALSE;
2587   else
2588     return GetParent()->AncestorSelected();
2589 }
2590
2591 int wxShape::GetNumberOfAttachments() const
2592 {
2593   // Should return the MAXIMUM attachment point id here,
2594   // so higher-level functions can iterate through all attachments,
2595   // even if they're not contiguous.
2596   if (m_attachmentPoints.Number() == 0)
2597     return 4;
2598   else
2599   {
2600     int maxN = 3;
2601     wxNode *node = m_attachmentPoints.First();
2602     while (node)
2603     {
2604       wxAttachmentPoint *point = (wxAttachmentPoint *)node->Data();
2605       if (point->m_id > maxN)
2606         maxN = point->m_id;
2607       node = node->Next();
2608     }
2609     return maxN+1;;
2610   }
2611 }
2612
2613 bool wxShape::AttachmentIsValid(int attachment) const
2614 {
2615   if (m_attachmentPoints.Number() == 0)
2616   {
2617     return ((attachment >= 0) && (attachment < 4)) ;
2618   }
2619
2620   wxNode *node = m_attachmentPoints.First();
2621   while (node)
2622   {
2623     wxAttachmentPoint *point = (wxAttachmentPoint *)node->Data();
2624     if (point->m_id == attachment)
2625       return TRUE;
2626     node = node->Next();
2627   }
2628   return FALSE;
2629 }
2630
2631 bool wxShape::GetAttachmentPosition(int attachment, double *x, double *y,
2632                                          int nth, int no_arcs, wxLineShape *line)
2633 {
2634     if (!m_attachmentMode)
2635     {
2636         *x = m_xpos; *y = m_ypos;
2637         return TRUE;
2638     }
2639     else
2640     {
2641         if (m_attachmentPoints.Number() > 0)
2642         {
2643             wxNode *node = m_attachmentPoints.First();
2644             while (node)
2645             {
2646                 wxAttachmentPoint *point = (wxAttachmentPoint *)node->Data();
2647                 if (point->m_id == attachment)
2648                 {
2649                     *x = (double)(m_xpos + point->m_x);
2650                     *y = (double)(m_ypos + point->m_y);
2651                     return TRUE;
2652                 }
2653                 node = node->Next();
2654             }
2655             *x = m_xpos; *y = m_ypos;
2656             return FALSE;
2657         }
2658         else
2659         {
2660             // Assume is rectangular
2661             double w, h;
2662             GetBoundingBoxMax(&w, &h);
2663             double top = (double)(m_ypos + h/2.0);
2664             double bottom = (double)(m_ypos - h/2.0);
2665             double left = (double)(m_xpos - w/2.0);
2666             double right = (double)(m_xpos + w/2.0);
2667
2668             bool isEnd = (line && line->IsEnd(this));
2669
2670             // Simplified code
2671             switch (attachment)
2672             {
2673                 case 0:
2674                 {
2675                     wxRealPoint pt = CalcSimpleAttachment(wxRealPoint(left, bottom), wxRealPoint(right, bottom),
2676                             nth, no_arcs, line);
2677
2678                     *x = pt.x; *y = pt.y;
2679                     break;
2680                 }
2681                 case 1:
2682                 {
2683                     wxRealPoint pt = CalcSimpleAttachment(wxRealPoint(right, bottom), wxRealPoint(right, top),
2684                             nth, no_arcs, line);
2685
2686                     *x = pt.x; *y = pt.y;
2687                     break;
2688                 }
2689                 case 2:
2690                 {
2691                     wxRealPoint pt = CalcSimpleAttachment(wxRealPoint(left, top), wxRealPoint(right, top),
2692                             nth, no_arcs, line);
2693
2694                     *x = pt.x; *y = pt.y;
2695                     break;
2696                 }
2697                 case 3:
2698                 {
2699                     wxRealPoint pt = CalcSimpleAttachment(wxRealPoint(left, bottom), wxRealPoint(left, top),
2700                             nth, no_arcs, line);
2701
2702                     *x = pt.x; *y = pt.y;
2703                     break;
2704                 }
2705                 default:
2706                 {
2707                     return wxShape::GetAttachmentPosition(attachment, x, y, nth, no_arcs, line);
2708                     break;
2709                 }
2710             }
2711             return TRUE;
2712         }
2713     }
2714     return FALSE;
2715 }
2716
2717 void wxShape::GetBoundingBoxMax(double *w, double *h)
2718 {
2719   double ww, hh;
2720   GetBoundingBoxMin(&ww, &hh);
2721   if (m_shadowMode != SHADOW_NONE)
2722   {
2723     ww += m_shadowOffsetX;
2724     hh += m_shadowOffsetY;
2725   }
2726   *w = ww;
2727   *h = hh;
2728 }
2729
2730 // Returns TRUE if image is a descendant of this composite
2731 bool wxShape::HasDescendant(wxShape *image)
2732 {
2733   if (image == this)
2734     return TRUE;
2735   wxNode *node = m_children.First();
2736   while (node)
2737   {
2738     wxShape *child = (wxShape *)node->Data();
2739     bool ans = child->HasDescendant(image);
2740     if (ans)
2741       return TRUE;
2742     node = node->Next();
2743   }
2744   return FALSE;
2745 }
2746
2747 // Clears points from a list of wxRealPoints, and clears list
2748 void wxShape::ClearPointList(wxList& list)
2749 {
2750     wxNode* node = list.First();
2751     while (node)
2752     {
2753         wxRealPoint* pt = (wxRealPoint*) node->Data();
2754         delete pt;
2755
2756         node = node->Next();
2757     }
2758     list.Clear();
2759 }
2760
2761 // Assuming the attachment lies along a vertical or horizontal line,
2762 // calculate the position on that point.
2763 wxRealPoint wxShape::CalcSimpleAttachment(const wxRealPoint& pt1, const wxRealPoint& pt2,
2764     int nth, int noArcs, wxLineShape* line)
2765 {
2766     bool isEnd = (line && line->IsEnd(this));
2767
2768     // Are we horizontal or vertical?
2769     bool isHorizontal = (oglRoughlyEqual(pt1.y, pt2.y) == TRUE);
2770
2771     double x, y;
2772
2773     if (isHorizontal)
2774     {
2775         wxRealPoint firstPoint, secondPoint;
2776         if (pt1.x > pt2.x)
2777         {
2778             firstPoint = pt2;
2779             secondPoint = pt1;
2780         }
2781         else
2782         {
2783             firstPoint = pt1;
2784             secondPoint = pt2;
2785         }
2786
2787         if (m_spaceAttachments)
2788         {
2789           if (line && (line->GetAlignmentType(isEnd) == LINE_ALIGNMENT_TO_NEXT_HANDLE))
2790           {
2791             // Align line according to the next handle along
2792             wxRealPoint *point = line->GetNextControlPoint(this);
2793             if (point->x < firstPoint.x)
2794               x = firstPoint.x;
2795             else if (point->x > secondPoint.x)
2796               x = secondPoint.x;
2797             else
2798               x = point->x;
2799           }
2800           else
2801             x = firstPoint.x + (nth + 1)*(secondPoint.x - firstPoint.x)/(noArcs + 1);
2802         }
2803         else x = (secondPoint.x - firstPoint.x)/2.0; // Midpoint
2804
2805         y = pt1.y;
2806     }
2807     else
2808     {
2809         wxASSERT( oglRoughlyEqual(pt1.x, pt2.x) == TRUE );
2810
2811         wxRealPoint firstPoint, secondPoint;
2812         if (pt1.y > pt2.y)
2813         {
2814             firstPoint = pt2;
2815             secondPoint = pt1;
2816         }
2817         else
2818         {
2819             firstPoint = pt1;
2820             secondPoint = pt2;
2821         }
2822
2823         if (m_spaceAttachments)
2824         {
2825           if (line && (line->GetAlignmentType(isEnd) == LINE_ALIGNMENT_TO_NEXT_HANDLE))
2826           {
2827             // Align line according to the next handle along
2828             wxRealPoint *point = line->GetNextControlPoint(this);
2829             if (point->y < firstPoint.y)
2830               y = firstPoint.y;
2831             else if (point->y > secondPoint.y)
2832               y = secondPoint.y;
2833             else
2834               y = point->y;
2835           }
2836           else
2837             y = firstPoint.y + (nth + 1)*(secondPoint.y - firstPoint.y)/(noArcs + 1);
2838         }
2839         else y = (secondPoint.y - firstPoint.y)/2.0; // Midpoint
2840
2841         x = pt1.x;
2842     }
2843
2844     return wxRealPoint(x, y);
2845 }
2846
2847 // Return the zero-based position in m_lines of line.
2848 int wxShape::GetLinePosition(wxLineShape* line)
2849 {
2850     int i = 0;
2851     for (i = 0; i < m_lines.Number(); i++)
2852         if ((wxLineShape*) (m_lines.Nth(i)->Data()) == line)
2853             return i;
2854
2855     return 0;
2856 }
2857