utils/ogl/src/basic2.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        basic2.cpp
   3 // Purpose:     Basic OGL classes (2)
   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 #endif
  14
  15 // For compilers that support precompilation, includes "wx.h".
  16 #include <wx/wxprec.h>
  17
  18 #ifdef __BORLANDC__
  19 #pragma hdrstop
  20 #endif
  21
  22 #ifndef WX_PRECOMP
  23 #include <wx/wx.h>
  24 #endif
  25
  26 #ifdef PROLOGIO
  27 #include <wx/wxexpr.h>
  28 #endif
  29
  30 #if USE_IOSTREAMH
  31 #include <iostream.h>
  32 #else
  33 #include <iostream>
  34 #endif
  35
  36 #include <stdio.h>
  37 #include <ctype.h>
  38 #include <math.h>
  39
  40 #include "basic.h"
  41 #include "basicp.h"
  42 #include "composit.h"
  43 #include "lines.h"
  44 #include "canvas.h"
  45 #include "divided.h"
  46 #include "misc.h"
  47
  48 // Control point types
  49 // Rectangle and most other shapes
  50 #define CONTROL_POINT_VERTICAL   1
  51 #define CONTROL_POINT_HORIZONTAL 2
  52 #define CONTROL_POINT_DIAGONAL   3
  53
  54 // Line
  55 #define CONTROL_POINT_ENDPOINT_TO 4
  56 #define CONTROL_POINT_ENDPOINT_FROM 5
  57 #define CONTROL_POINT_LINE       6
  58
  59 // Two stage construction: need to call Create
  60 IMPLEMENT_DYNAMIC_CLASS(wxPolygonShape, wxShape)
  61
  62 wxPolygonShape::wxPolygonShape()
  63 {
  64   m_points = NULL;
  65   m_originalPoints = NULL;
  66 }
  67
  68 void wxPolygonShape::Create(wxList *the_points)
  69 {
  70   ClearPoints();
  71
  72   m_originalPoints = the_points;
  73
  74   // Duplicate the list of points
  75   m_points = new wxList;
  76
  77   wxNode *node = the_points->First();
  78   while (node)
  79   {
  80     wxRealPoint *point = (wxRealPoint *)node->Data();
  81     wxRealPoint *new_point = new wxRealPoint(point->x, point->y);
  82     m_points->Append((wxObject*) new_point);
  83     node = node->Next();
  84   }
  85   CalculateBoundingBox();
  86   m_originalWidth = m_boundWidth;
  87   m_originalHeight = m_boundHeight;
  88   SetDefaultRegionSize();
  89 }
  90
  91 wxPolygonShape::~wxPolygonShape()
  92 {
  93     ClearPoints();
  94 }
  95
  96 void wxPolygonShape::ClearPoints()
  97 {
  98   if (m_points)
  99   {
 100     wxNode *node = m_points->First();
 101     while (node)
 102     {
 103       wxRealPoint *point = (wxRealPoint *)node->Data();
 104       delete point;
 105       delete node;
 106       node = m_points->First();
 107     }
 108     delete m_points;
 109     m_points = NULL;
 110   }
 111   if (m_originalPoints)
 112   {
 113     wxNode *node = m_originalPoints->First();
 114     while (node)
 115     {
 116       wxRealPoint *point = (wxRealPoint *)node->Data();
 117       delete point;
 118       delete node;
 119       node = m_originalPoints->First();
 120     }
 121     delete m_originalPoints;
 122     m_originalPoints = NULL;
 123   }
 124 }
 125
 126
 127 // Width and height. Centre of object is centre of box.
 128 void wxPolygonShape::GetBoundingBoxMin(double *width, double *height)
 129 {
 130   *width = m_boundWidth;
 131   *height = m_boundHeight;
 132 }
 133
 134 void wxPolygonShape::CalculateBoundingBox()
 135 {
 136   // Calculate bounding box at construction (and presumably resize) time
 137   double left = 10000;
 138   double right = -10000;
 139   double top = 10000;
 140   double bottom = -10000;
 141
 142   wxNode *node = m_points->First();
 143   while (node)
 144   {
 145     wxRealPoint *point = (wxRealPoint *)node->Data();
 146     if (point->x < left) left = point->x;
 147     if (point->x > right) right = point->x;
 148
 149     if (point->y < top) top = point->y;
 150     if (point->y > bottom) bottom = point->y;
 151
 152     node = node->Next();
 153   }
 154   m_boundWidth = right - left;
 155   m_boundHeight = bottom - top;
 156 }
 157
 158 // Recalculates the centre of the polygon, and
 159 // readjusts the point offsets accordingly.
 160 // Necessary since the centre of the polygon
 161 // is expected to be the real centre of the bounding
 162 // box.
 163 void wxPolygonShape::CalculatePolygonCentre()
 164 {
 165   double left = 10000;
 166   double right = -10000;
 167   double top = 10000;
 168   double bottom = -10000;
 169
 170   wxNode *node = m_points->First();
 171   while (node)
 172   {
 173     wxRealPoint *point = (wxRealPoint *)node->Data();
 174     if (point->x < left) left = point->x;
 175     if (point->x > right) right = point->x;
 176
 177     if (point->y < top) top = point->y;
 178     if (point->y > bottom) bottom = point->y;
 179
 180     node = node->Next();
 181   }
 182   double bwidth = right - left;
 183   double bheight = bottom - top;
 184
 185   double newCentreX = (double)(left + (bwidth/2.0));
 186   double newCentreY = (double)(top + (bheight/2.0));
 187
 188   node = m_points->First();
 189   while (node)
 190   {
 191     wxRealPoint *point = (wxRealPoint *)node->Data();
 192     point->x -= newCentreX;
 193     point->y -= newCentreY;
 194     node = node->Next();
 195   }
 196   m_xpos += newCentreX;
 197   m_ypos += newCentreY;
 198 }
 199
 200 bool PolylineHitTest(double n, double xvec[], double yvec[],
 201                            double x1, double y1, double x2, double y2)
 202 {
 203   bool isAHit = FALSE;
 204   int i;
 205   double lastx = xvec[0];
 206   double lasty = yvec[0];
 207
 208   double min_ratio = 1.0;
 209   double line_ratio;
 210   double other_ratio;
 211
 212 //  char buf[300];
 213   for (i = 1; i < n; i++)
 214   {
 215     oglCheckLineIntersection(x1, y1, x2, y2, lastx, lasty, xvec[i], yvec[i],
 216                             &line_ratio, &other_ratio);
 217     if (line_ratio != 1.0)
 218       isAHit = TRUE;
 219 //    sprintf(buf, "Line ratio = %.2f, other ratio = %.2f\n", line_ratio, other_ratio);
 220 //    ClipsErrorFunction(buf);
 221     lastx = xvec[i];
 222     lasty = yvec[i];
 223
 224     if (line_ratio < min_ratio)
 225       min_ratio = line_ratio;
 226   }
 227
 228   // Do last (implicit) line if last and first doubles are not identical
 229   if (!(xvec[0] == lastx && yvec[0] == lasty))
 230   {
 231     oglCheckLineIntersection(x1, y1, x2, y2, lastx, lasty, xvec[0], yvec[0],
 232                             &line_ratio, &other_ratio);
 233     if (line_ratio != 1.0)
 234       isAHit = TRUE;
 235 //    sprintf(buf, "Line ratio = %.2f, other ratio = %.2f\n", line_ratio, other_ratio);
 236 //    ClipsErrorFunction(buf);
 237
 238     if (line_ratio < min_ratio)
 239       min_ratio = line_ratio;
 240   }
 241 //  ClipsErrorFunction("\n");
 242   return isAHit;
 243 }
 244
 245 bool wxPolygonShape::HitTest(double x, double y, int *attachment, double *distance)
 246 {
 247   // Imagine four lines radiating from this point. If all of these lines hit the polygon,
 248   // we're inside it, otherwise we're not. Obviously we'd need more radiating lines
 249   // to be sure of correct results for very strange (concave) shapes.
 250   double endPointsX[4];
 251   double endPointsY[4];
 252   // North
 253   endPointsX[0] = x;
 254   endPointsY[0] = (double)(y - 1000.0);
 255   // East
 256   endPointsX[1] = (double)(x + 1000.0);
 257   endPointsY[1] = y;
 258   // South
 259   endPointsX[2] = x;
 260   endPointsY[2] = (double)(y + 1000.0);
 261   // West
 262   endPointsX[3] = (double)(x - 1000.0);
 263   endPointsY[3] = y;
 264
 265   // Store polygon points in an array
 266   int np = m_points->Number();
 267   double *xpoints = new double[np];
 268   double *ypoints = new double[np];
 269   wxNode *node = m_points->First();
 270   int i = 0;
 271   while (node)
 272   {
 273     wxRealPoint *point = (wxRealPoint *)node->Data();
 274     xpoints[i] = point->x + m_xpos;
 275     ypoints[i] = point->y + m_ypos;
 276     node = node->Next();
 277     i ++;
 278   }
 279
 280   // We assume it's inside the polygon UNLESS one or more
 281   // lines don't hit the outline.
 282   bool isContained = TRUE;
 283
 284   int noPoints = 4;
 285   for (i = 0; i < noPoints; i++)
 286   {
 287     if (!PolylineHitTest(np, xpoints, ypoints, x, y, endPointsX[i], endPointsY[i]))
 288       isContained = FALSE;
 289   }
 290 /*
 291   if (isContained)
 292     ClipsErrorFunction("It's a hit!\n");
 293   else
 294     ClipsErrorFunction("No hit.\n");
 295 */
 296   delete[] xpoints;
 297   delete[] ypoints;
 298
 299   if (!isContained)
 300     return FALSE;
 301
 302   int nearest_attachment = 0;
 303
 304   // If a hit, check the attachment points within the object.
 305   int n = GetNumberOfAttachments();
 306   double nearest = 999999.0;
 307
 308   for (i = 0; i < n; i++)
 309   {
 310     double xp, yp;
 311     if (GetAttachmentPosition(i, &xp, &yp))
 312     {
 313       double l = (double)sqrt(((xp - x) * (xp - x)) +
 314                  ((yp - y) * (yp - y)));
 315       if (l < nearest)
 316       {
 317         nearest = l;
 318         nearest_attachment = i;
 319       }
 320     }
 321   }
 322   *attachment = nearest_attachment;
 323   *distance = nearest;
 324   return TRUE;
 325 }
 326
 327 // Really need to be able to reset the shape! Otherwise, if the
 328 // points ever go to zero, we've lost it, and can't resize.
 329 void wxPolygonShape::SetSize(double new_width, double new_height, bool recursive)
 330 {
 331   SetAttachmentSize(new_width, new_height);
 332
 333   // Multiply all points by proportion of new size to old size
 334   double x_proportion = (double)(fabs(new_width/m_originalWidth));
 335   double y_proportion = (double)(fabs(new_height/m_originalHeight));
 336
 337   wxNode *node = m_points->First();
 338   wxNode *original_node = m_originalPoints->First();
 339   while (node && original_node)
 340   {
 341     wxRealPoint *point = (wxRealPoint *)node->Data();
 342     wxRealPoint *original_point = (wxRealPoint *)original_node->Data();
 343
 344     point->x = (original_point->x * x_proportion);
 345     point->y = (original_point->y * y_proportion);
 346
 347     node = node->Next();
 348     original_node = original_node->Next();
 349   }
 350
 351 //  CalculateBoundingBox();
 352   m_boundWidth = (double)fabs(new_width);
 353   m_boundHeight = (double)fabs(new_height);
 354   SetDefaultRegionSize();
 355 }
 356
 357 // Make the original points the same as the working points
 358 void wxPolygonShape::UpdateOriginalPoints()
 359 {
 360   if (!m_originalPoints) m_originalPoints = new wxList;
 361   wxNode *original_node = m_originalPoints->First();
 362   while (original_node)
 363   {
 364     wxNode *next_node = original_node->Next();
 365     wxRealPoint *original_point = (wxRealPoint *)original_node->Data();
 366     delete original_point;
 367     delete original_node;
 368
 369     original_node = next_node;
 370   }
 371
 372   wxNode *node = m_points->First();
 373   while (node)
 374   {
 375     wxRealPoint *point = (wxRealPoint *)node->Data();
 376     wxRealPoint *original_point = new wxRealPoint(point->x, point->y);
 377     m_originalPoints->Append((wxObject*) original_point);
 378
 379     node = node->Next();
 380   }
 381   CalculateBoundingBox();
 382   m_originalWidth = m_boundWidth;
 383   m_originalHeight = m_boundHeight;
 384 }
 385
 386 void wxPolygonShape::AddPolygonPoint(int pos)
 387 {
 388   wxNode *node = m_points->Nth(pos);
 389   if (!node) node = m_points->First();
 390   wxRealPoint *firstPoint = (wxRealPoint *)node->Data();
 391
 392   wxNode *node2 = m_points->Nth(pos + 1);
 393   if (!node2) node2 = m_points->First();
 394   wxRealPoint *secondPoint = (wxRealPoint *)node2->Data();
 395
 396   double x = (double)((secondPoint->x - firstPoint->x)/2.0 + firstPoint->x);
 397   double y = (double)((secondPoint->y - firstPoint->y)/2.0 + firstPoint->y);
 398   wxRealPoint *point = new wxRealPoint(x, y);
 399
 400   if (pos >= (m_points->Number() - 1))
 401     m_points->Append((wxObject*) point);
 402   else
 403     m_points->Insert(node2, (wxObject*) point);
 404
 405   UpdateOriginalPoints();
 406
 407   if (m_selected)
 408   {
 409     DeleteControlPoints();
 410     MakeControlPoints();
 411   }
 412 }
 413
 414 void wxPolygonShape::DeletePolygonPoint(int pos)
 415 {
 416   wxNode *node = m_points->Nth(pos);
 417   if (node)
 418   {
 419     wxRealPoint *point = (wxRealPoint *)node->Data();
 420     delete point;
 421     delete node;
 422     UpdateOriginalPoints();
 423     if (m_selected)
 424     {
 425       DeleteControlPoints();
 426       MakeControlPoints();
 427     }
 428   }
 429 }
 430
 431 // Assume (x1, y1) is centre of box (most generally, line end at box)
 432 bool wxPolygonShape::GetPerimeterPoint(double x1, double y1,
 433                                      double x2, double y2,
 434                                      double *x3, double *y3)
 435 {
 436   int n = m_points->Number();
 437
 438   // First check for situation where the line is vertical,
 439   // and we would want to connect to a point on that vertical --
 440   // oglFindEndForPolyline can't cope with this (the arrow
 441   // gets drawn to the wrong place).
 442   if ((!m_attachmentMode) && (x1 == x2))
 443   {
 444     // Look for the point we'd be connecting to. This is
 445     // a heuristic...
 446     wxNode *node = m_points->First();
 447     while (node)
 448     {
 449       wxRealPoint *point = (wxRealPoint *)node->Data();
 450       if (point->x == 0.0)
 451       {
 452         if ((y2 > y1) && (point->y > 0.0))
 453         {
 454           *x3 = point->x + m_xpos;
 455           *y3 = point->y + m_ypos;
 456           return TRUE;
 457         }
 458         else if ((y2 < y1) && (point->y < 0.0))
 459         {
 460           *x3 = point->x + m_xpos;
 461           *y3 = point->y + m_ypos;
 462           return TRUE;
 463         }
 464       }
 465       node = node->Next();
 466     }
 467   }
 468
 469   double *xpoints = new double[n];
 470   double *ypoints = new double[n];
 471
 472   wxNode *node = m_points->First();
 473   int i = 0;
 474   while (node)
 475   {
 476     wxRealPoint *point = (wxRealPoint *)node->Data();
 477     xpoints[i] = point->x + m_xpos;
 478     ypoints[i] = point->y + m_ypos;
 479     node = node->Next();
 480     i ++;
 481   }
 482
 483   oglFindEndForPolyline(n, xpoints, ypoints,
 484                         x1, y1, x2, y2, x3, y3);
 485
 486   delete[] xpoints;
 487   delete[] ypoints;
 488
 489   return TRUE;
 490 }
 491
 492 void wxPolygonShape::OnDraw(wxDC& dc)
 493 {
 494     int n = m_points->Number();
 495     wxPoint *intPoints = new wxPoint[n];
 496     int i;
 497     for (i = 0; i < n; i++)
 498     {
 499       wxRealPoint* point = (wxRealPoint*) m_points->Nth(i)->Data();
 500       intPoints[i].x = WXROUND(point->x);
 501       intPoints[i].y = WXROUND(point->y);
 502     }
 503
 504     if (m_shadowMode != SHADOW_NONE)
 505     {
 506       if (m_shadowBrush)
 507         dc.SetBrush(m_shadowBrush);
 508       dc.SetPen(g_oglTransparentPen);
 509
 510       dc.DrawPolygon(n, intPoints, WXROUND(m_xpos + m_shadowOffsetX), WXROUND(m_ypos + m_shadowOffsetY));
 511     }
 512
 513     if (m_pen)
 514     {
 515       if (m_pen->GetWidth() == 0)
 516         dc.SetPen(g_oglTransparentPen);
 517       else
 518         dc.SetPen(m_pen);
 519     }
 520     if (m_brush)
 521       dc.SetBrush(m_brush);
 522     dc.DrawPolygon(n, intPoints, WXROUND(m_xpos), WXROUND(m_ypos));
 523
 524     delete[] intPoints;
 525 }
 526
 527 void wxPolygonShape::OnDrawOutline(wxDC& dc, double x, double y, double w, double h)
 528 {
 529   dc.SetBrush(wxTRANSPARENT_BRUSH);
 530   // Multiply all points by proportion of new size to old size
 531   double x_proportion = (double)(fabs(w/m_originalWidth));
 532   double y_proportion = (double)(fabs(h/m_originalHeight));
 533
 534   int n = m_originalPoints->Number();
 535   wxPoint *intPoints = new wxPoint[n];
 536   int i;
 537   for (i = 0; i < n; i++)
 538   {
 539     wxRealPoint* point = (wxRealPoint*) m_originalPoints->Nth(i)->Data();
 540     intPoints[i].x = WXROUND(x_proportion * point->x);
 541     intPoints[i].y = WXROUND(y_proportion * point->y);
 542   }
 543   dc.DrawPolygon(n, intPoints, WXROUND(x), WXROUND(y));
 544   delete[] intPoints;
 545 }
 546
 547 // Make as many control points as there are vertices.
 548 void wxPolygonShape::MakeControlPoints()
 549 {
 550   wxNode *node = m_points->First();
 551   while (node)
 552   {
 553     wxRealPoint *point = (wxRealPoint *)node->Data();
 554     wxPolygonControlPoint *control = new wxPolygonControlPoint(m_canvas, this, CONTROL_POINT_SIZE,
 555       point, point->x, point->y);
 556     m_canvas->AddShape(control);
 557     m_controlPoints.Append(control);
 558     node = node->Next();
 559   }
 560
 561 /*
 562   double maxX, maxY, minX, minY;
 563
 564   GetBoundingBoxMax(&maxX, &maxY);
 565   GetBoundingBoxMin(&minX, &minY);
 566
 567   double widthMin = (double)(minX + CONTROL_POINT_SIZE + 2);
 568   double heightMin = (double)(minY + CONTROL_POINT_SIZE + 2);
 569
 570   // Offsets from main object
 571   double top = (double)(- (heightMin / 2.0));
 572   double bottom = (double)(heightMin / 2.0 + (maxY - minY));
 573   double left = (double)(- (widthMin / 2.0));
 574   double right = (double)(widthMin / 2.0 + (maxX - minX));
 575
 576   wxControlPoint *control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, left, top,
 577                                            CONTROL_POINT_DIAGONAL);
 578   m_canvas->AddShape(control);
 579   m_controlPoints.Append(control);
 580
 581   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, 0, top,
 582                                            CONTROL_POINT_VERTICAL);
 583   m_canvas->AddShape(control);
 584   m_controlPoints.Append(control);
 585
 586   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, right, top,
 587                                            CONTROL_POINT_DIAGONAL);
 588   m_canvas->AddShape(control);
 589   m_controlPoints.Append(control);
 590
 591   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, right, 0,
 592                                            CONTROL_POINT_HORIZONTAL);
 593   m_canvas->AddShape(control);
 594   m_controlPoints.Append(control);
 595
 596   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, right, bottom,
 597                                            CONTROL_POINT_DIAGONAL);
 598   m_canvas->AddShape(control);
 599   m_controlPoints.Append(control);
 600
 601   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, 0, bottom,
 602                                            CONTROL_POINT_VERTICAL);
 603   m_canvas->AddShape(control);
 604   m_controlPoints.Append(control);
 605
 606   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, left, bottom,
 607                                            CONTROL_POINT_DIAGONAL);
 608   m_canvas->AddShape(control);
 609   m_controlPoints.Append(control);
 610
 611   control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, left, 0,
 612                                            CONTROL_POINT_HORIZONTAL);
 613   m_canvas->AddShape(control);
 614   m_controlPoints.Append(control);
 615 */
 616 }
 617
 618 void wxPolygonShape::ResetControlPoints()
 619 {
 620   wxNode *node = m_points->First();
 621   wxNode *controlPointNode = m_controlPoints.First();
 622   while (node && controlPointNode)
 623   {
 624     wxRealPoint *point = (wxRealPoint *)node->Data();
 625     wxPolygonControlPoint *controlPoint = (wxPolygonControlPoint *)controlPointNode->Data();
 626
 627     controlPoint->m_xoffset = point->x;
 628     controlPoint->m_yoffset = point->y;
 629     controlPoint->m_polygonVertex = point;
 630
 631     node = node->Next();
 632     controlPointNode = controlPointNode->Next();
 633   }
 634 /*
 635
 636   if (m_controlPoints.Number() < 1)
 637     return;
 638
 639   double maxX, maxY, minX, minY;
 640
 641   GetBoundingBoxMax(&maxX, &maxY);
 642   GetBoundingBoxMin(&minX, &minY);
 643
 644   double widthMin = (double)(minX + CONTROL_POINT_SIZE + 2);
 645   double heightMin = (double)(minY + CONTROL_POINT_SIZE + 2);
 646
 647   // Offsets from main object
 648   double top = (double)(- (heightMin / 2.0));
 649   double bottom = (double)(heightMin / 2.0 + (maxY - minY));
 650   double left = (double)(- (widthMin / 2.0));
 651   double right = (double)(widthMin / 2.0 + (maxX - minX));
 652
 653   wxNode *node = m_controlPoints.First();
 654   wxControlPoint *control = (wxControlPoint *)node->Data();
 655   control->xoffset = left; control->yoffset = top;
 656
 657   node = node->Next(); control = (wxControlPoint *)node->Data();
 658   control->xoffset = 0; control->yoffset = top;
 659
 660   node = node->Next(); control = (wxControlPoint *)node->Data();
 661   control->xoffset = right; control->yoffset = top;
 662
 663   node = node->Next(); control = (wxControlPoint *)node->Data();
 664   control->xoffset = right; control->yoffset = 0;
 665
 666   node = node->Next(); control = (wxControlPoint *)node->Data();
 667   control->xoffset = right; control->yoffset = bottom;
 668
 669   node = node->Next(); control = (wxControlPoint *)node->Data();
 670   control->xoffset = 0; control->yoffset = bottom;
 671
 672   node = node->Next(); control = (wxControlPoint *)node->Data();
 673   control->xoffset = left; control->yoffset = bottom;
 674
 675   node = node->Next(); control = (wxControlPoint *)node->Data();
 676   control->xoffset = left; control->yoffset = 0;
 677 */
 678 }
 679
 680
 681 #ifdef PROLOGIO
 682 void wxPolygonShape::WritePrologAttributes(wxExpr *clause)
 683 {
 684   wxShape::WritePrologAttributes(clause);
 685
 686   clause->AddAttributeValue("x", m_xpos);
 687   clause->AddAttributeValue("y", m_ypos);
 688
 689   // Make a list of lists for the coordinates
 690   wxExpr *list = new wxExpr(PrologList);
 691   wxNode *node = m_points->First();
 692   while (node)
 693   {
 694     wxRealPoint *point = (wxRealPoint *)node->Data();
 695     wxExpr *point_list = new wxExpr(PrologList);
 696     wxExpr *x_expr = new wxExpr((double)point->x);
 697     wxExpr *y_expr = new wxExpr((double)point->y);
 698
 699     point_list->Append(x_expr);
 700     point_list->Append(y_expr);
 701     list->Append(point_list);
 702
 703     node = node->Next();
 704   }
 705   clause->AddAttributeValue("points", list);
 706
 707   // Save the original (unscaled) points
 708   list = new wxExpr(PrologList);
 709   node = m_originalPoints->First();
 710   while (node)
 711   {
 712     wxRealPoint *point = (wxRealPoint *)node->Data();
 713     wxExpr *point_list = new wxExpr(PrologList);
 714     wxExpr *x_expr = new wxExpr((double) point->x);
 715     wxExpr *y_expr = new wxExpr((double) point->y);
 716     point_list->Append(x_expr);
 717     point_list->Append(y_expr);
 718     list->Append(point_list);
 719
 720     node = node->Next();
 721   }
 722   clause->AddAttributeValue("m_originalPoints", list);
 723 }
 724
 725 void wxPolygonShape::ReadPrologAttributes(wxExpr *clause)
 726 {
 727   wxShape::ReadPrologAttributes(clause);
 728
 729   // Read a list of lists
 730   m_points = new wxList;
 731   m_originalPoints = new wxList;
 732
 733   wxExpr *points_list = NULL;
 734   clause->AssignAttributeValue("points", &points_list);
 735
 736   // If no points_list, don't crash!! Assume a diamond instead.
 737   double the_height = 100.0;
 738   double the_width = 100.0;
 739   if (!points_list)
 740   {
 741     wxRealPoint *point = new wxRealPoint(0.0, (-the_height/2));
 742     m_points->Append((wxObject*) point);
 743
 744     point = new wxRealPoint((the_width/2), 0.0);
 745     m_points->Append((wxObject*) point);
 746
 747     point = new wxRealPoint(0.0, (the_height/2));
 748     m_points->Append((wxObject*) point);
 749
 750     point = new wxRealPoint((-the_width/2), 0.0);
 751     m_points->Append((wxObject*) point);
 752
 753     point = new wxRealPoint(0.0, (-the_height/2));
 754     m_points->Append((wxObject*) point);
 755   }
 756   else
 757   {
 758     wxExpr *node = points_list->value.first;
 759
 760     while (node)
 761     {
 762       wxExpr *xexpr = node->value.first;
 763       long x = xexpr->IntegerValue();
 764
 765       wxExpr *yexpr = xexpr->next;
 766       long y = yexpr->IntegerValue();
 767
 768       wxRealPoint *point = new wxRealPoint((double)x, (double)y);
 769       m_points->Append((wxObject*) point);
 770
 771       node = node->next;
 772     }
 773   }
 774
 775   points_list = NULL;
 776   clause->AssignAttributeValue("m_originalPoints", &points_list);
 777
 778   // If no points_list, don't crash!! Assume a diamond instead.
 779   if (!points_list)
 780   {
 781     wxRealPoint *point = new wxRealPoint(0.0, (-the_height/2));
 782     m_originalPoints->Append((wxObject*) point);
 783
 784     point = new wxRealPoint((the_width/2), 0.0);
 785     m_originalPoints->Append((wxObject*) point);
 786
 787     point = new wxRealPoint(0.0, (the_height/2));
 788     m_originalPoints->Append((wxObject*) point);
 789
 790     point = new wxRealPoint((-the_width/2), 0.0);
 791     m_originalPoints->Append((wxObject*) point);
 792
 793     point = new wxRealPoint(0.0, (-the_height/2));
 794     m_originalPoints->Append((wxObject*) point);
 795
 796     m_originalWidth = the_width;
 797     m_originalHeight = the_height;
 798   }
 799   else
 800   {
 801     wxExpr *node = points_list->value.first;
 802     double min_x = 1000;
 803     double min_y = 1000;
 804     double max_x = -1000;
 805     double max_y = -1000;
 806     while (node)
 807     {
 808       wxExpr *xexpr = node->value.first;
 809       long x = xexpr->IntegerValue();
 810
 811       wxExpr *yexpr = xexpr->next;
 812       long y = yexpr->IntegerValue();
 813
 814       wxRealPoint *point = new wxRealPoint((double)x, (double)y);
 815       m_originalPoints->Append((wxObject*) point);
 816
 817       if (x < min_x)
 818         min_x = (double)x;
 819       if (y < min_y)
 820         min_y = (double)y;
 821       if (x > max_x)
 822         max_x = (double)x;
 823       if (y > max_y)
 824         max_y = (double)y;
 825
 826       node = node->next;
 827     }
 828     m_originalWidth = max_x - min_x;
 829     m_originalHeight = max_y - min_y;
 830   }
 831
 832   CalculateBoundingBox();
 833 }
 834 #endif
 835
 836 void wxPolygonShape::Copy(wxShape& copy)
 837 {
 838   wxShape::Copy(copy);
 839
 840   wxASSERT( copy.IsKindOf(CLASSINFO(wxPolygonShape)) );
 841
 842   wxPolygonShape& polyCopy = (wxPolygonShape&) copy;
 843
 844   polyCopy.ClearPoints();
 845
 846   polyCopy.m_points = new wxList;
 847   polyCopy.m_originalPoints = new wxList;
 848
 849   wxNode *node = m_points->First();
 850   while (node)
 851   {
 852     wxRealPoint *point = (wxRealPoint *)node->Data();
 853     wxRealPoint *new_point = new wxRealPoint(point->x, point->y);
 854     polyCopy.m_points->Append((wxObject*) new_point);
 855     node = node->Next();
 856   }
 857   node = m_originalPoints->First();
 858   while (node)
 859   {
 860     wxRealPoint *point = (wxRealPoint *)node->Data();
 861     wxRealPoint *new_point = new wxRealPoint(point->x, point->y);
 862     polyCopy.m_originalPoints->Append((wxObject*) new_point);
 863     node = node->Next();
 864   }
 865   polyCopy.m_boundWidth = m_boundWidth;
 866   polyCopy.m_boundHeight = m_boundHeight;
 867   polyCopy.m_originalWidth = m_originalWidth;
 868   polyCopy.m_originalHeight = m_originalHeight;
 869 }
 870
 871 int wxPolygonShape::GetNumberOfAttachments()
 872 {
 873   int maxN = (m_points ? (m_points->Number() - 1) : 0);
 874   wxNode *node = m_attachmentPoints.First();
 875   while (node)
 876   {
 877     wxAttachmentPoint *point = (wxAttachmentPoint *)node->Data();
 878     if (point->m_id > maxN)
 879       maxN = point->m_id;
 880     node = node->Next();
 881   }
 882   return maxN+1;;
 883 }
 884
 885 bool wxPolygonShape::GetAttachmentPosition(int attachment, double *x, double *y,
 886                                          int nth, int no_arcs, wxLineShape *line)
 887 {
 888   if (m_attachmentMode && m_points && attachment < m_points->Number())
 889   {
 890     wxRealPoint *point = (wxRealPoint *)m_points->Nth(attachment)->Data();
 891     *x = point->x + m_xpos;
 892     *y = point->y + m_ypos;
 893     return TRUE;
 894   }
 895   else
 896   { return wxShape::GetAttachmentPosition(attachment, x, y, nth, no_arcs, line); }
 897 }
 898
 899 bool wxPolygonShape::AttachmentIsValid(int attachment)
 900 {
 901   if (!m_points)
 902     return FALSE;
 903
 904   if ((attachment >= 0) && (attachment < m_points->Number()))
 905     return TRUE;
 906
 907   wxNode *node = m_attachmentPoints.First();
 908   while (node)
 909   {
 910     wxAttachmentPoint *point = (wxAttachmentPoint *)node->Data();
 911     if (point->m_id == attachment)
 912       return TRUE;
 913     node = node->Next();
 914   }
 915   return FALSE;
 916 }
 917
 918 // Rectangle object
 919
 920 IMPLEMENT_DYNAMIC_CLASS(wxRectangleShape, wxShape)
 921
 922 wxRectangleShape::wxRectangleShape(double w, double h)
 923 {
 924   m_width = w; m_height = h; m_cornerRadius = 0.0;
 925   SetDefaultRegionSize();
 926 }
 927
 928 void wxRectangleShape::OnDraw(wxDC& dc)
 929 {
 930     double x1 = (double)(m_xpos - m_width/2.0);
 931     double y1 = (double)(m_ypos - m_height/2.0);
 932
 933     if (m_shadowMode != SHADOW_NONE)
 934     {
 935       if (m_shadowBrush)
 936         dc.SetBrush(m_shadowBrush);
 937       dc.SetPen(g_oglTransparentPen);
 938
 939       if (m_cornerRadius != 0.0)
 940         dc.DrawRoundedRectangle(WXROUND(x1 + m_shadowOffsetX), WXROUND(y1 + m_shadowOffsetY),
 941                                  WXROUND(m_width), WXROUND(m_height), m_cornerRadius);
 942       else
 943         dc.DrawRectangle(WXROUND(x1 + m_shadowOffsetX), WXROUND(y1 + m_shadowOffsetY), WXROUND(m_width), WXROUND(m_height));
 944     }
 945
 946     if (m_pen)
 947     {
 948       if (m_pen->GetWidth() == 0)
 949         dc.SetPen(g_oglTransparentPen);
 950       else
 951         dc.SetPen(m_pen);
 952     }
 953     if (m_brush)
 954       dc.SetBrush(m_brush);
 955
 956     if (m_cornerRadius != 0.0)
 957       dc.DrawRoundedRectangle(WXROUND(x1), WXROUND(y1), WXROUND(m_width), WXROUND(m_height), m_cornerRadius);
 958     else
 959       dc.DrawRectangle(WXROUND(x1), WXROUND(y1), WXROUND(m_width), WXROUND(m_height));
 960 }
 961
 962 void wxRectangleShape::GetBoundingBoxMin(double *the_width, double *the_height)
 963 {
 964   *the_width = m_width;
 965   *the_height = m_height;
 966 }
 967
 968 void wxRectangleShape::SetSize(double x, double y, bool recursive)
 969 {
 970   SetAttachmentSize(x, y);
 971   m_width = (double)wxMax(x, 1.0);
 972   m_height = (double)wxMax(y, 1.0);
 973   SetDefaultRegionSize();
 974 }
 975
 976 void wxRectangleShape::SetCornerRadius(double rad)
 977 {
 978   m_cornerRadius = rad;
 979 }
 980
 981 // Assume (x1, y1) is centre of box (most generally, line end at box)
 982 bool wxRectangleShape::GetPerimeterPoint(double x1, double y1,
 983                                      double x2, double y2,
 984                                      double *x3, double *y3)
 985 {
 986   double bound_x, bound_y;
 987   GetBoundingBoxMax(&bound_x, &bound_y);
 988   oglFindEndForBox(bound_x, bound_y, m_xpos, m_ypos, x2, y2, x3, y3);
 989
 990   return TRUE;
 991 }
 992
 993 #ifdef PROLOGIO
 994 void wxRectangleShape::WritePrologAttributes(wxExpr *clause)
 995 {
 996   wxShape::WritePrologAttributes(clause);
 997   clause->AddAttributeValue("x", m_xpos);
 998   clause->AddAttributeValue("y", m_ypos);
 999
1000   clause->AddAttributeValue("width", m_width);
1001   clause->AddAttributeValue("height", m_height);
1002   if (m_cornerRadius != 0.0)
1003     clause->AddAttributeValue("corner", m_cornerRadius);
1004 }
1005
1006 void wxRectangleShape::ReadPrologAttributes(wxExpr *clause)
1007 {
1008   wxShape::ReadPrologAttributes(clause);
1009   clause->AssignAttributeValue("width", &m_width);
1010   clause->AssignAttributeValue("height", &m_height);
1011   clause->AssignAttributeValue("corner", &m_cornerRadius);
1012
1013   // In case we're reading an old file, set the region's size
1014   if (m_regions.Number() == 1)
1015   {
1016     wxShapeRegion *region = (wxShapeRegion *)m_regions.First()->Data();
1017     region->SetSize(m_width, m_height);
1018   }
1019 }
1020 #endif
1021
1022 void wxRectangleShape::Copy(wxShape& copy)
1023 {
1024   wxShape::Copy(copy);
1025
1026   wxASSERT( copy.IsKindOf(CLASSINFO(wxRectangleShape)) );
1027
1028   wxRectangleShape& rectCopy = (wxRectangleShape&) copy;
1029   rectCopy.m_width = m_width;
1030   rectCopy.m_height = m_height;
1031   rectCopy.m_cornerRadius = m_cornerRadius;
1032 }
1033
1034 int wxRectangleShape::GetNumberOfAttachments()
1035 {
1036   return wxShape::GetNumberOfAttachments();
1037 }
1038
1039
1040 // There are 4 attachment points on a rectangle - 0 = top, 1 = right, 2 = bottom,
1041 // 3 = left.
1042 bool wxRectangleShape::GetAttachmentPosition(int attachment, double *x, double *y,
1043                                          int nth, int no_arcs, wxLineShape *line)
1044 {
1045   if (m_attachmentMode)
1046   {
1047     double top = (double)(m_ypos + m_height/2.0);
1048     double bottom = (double)(m_ypos - m_height/2.0);
1049     double left = (double)(m_xpos - m_width/2.0);
1050     double right = (double)(m_xpos + m_width/2.0);
1051
1052     bool isEnd = (line && line->IsEnd(this));
1053
1054     // Simplified code
1055     switch (attachment)
1056     {
1057       case 0:
1058       {
1059         wxRealPoint pt = CalcSimpleAttachment(wxRealPoint(left, bottom), wxRealPoint(right, bottom),
1060             nth, no_arcs, line);
1061
1062         *x = pt.x; *y = pt.y;
1063         break;
1064       }
1065       case 1:
1066       {
1067         wxRealPoint pt = CalcSimpleAttachment(wxRealPoint(right, bottom), wxRealPoint(right, top),
1068             nth, no_arcs, line);
1069
1070         *x = pt.x; *y = pt.y;
1071         break;
1072       }
1073       case 2:
1074       {
1075         wxRealPoint pt = CalcSimpleAttachment(wxRealPoint(left, top), wxRealPoint(right, top),
1076             nth, no_arcs, line);
1077
1078         *x = pt.x; *y = pt.y;
1079         break;
1080       }
1081       case 3:
1082       {
1083         wxRealPoint pt = CalcSimpleAttachment(wxRealPoint(left, bottom), wxRealPoint(left, top),
1084             nth, no_arcs, line);
1085
1086         *x = pt.x; *y = pt.y;
1087         break;
1088       }
1089       default:
1090       {
1091         return wxShape::GetAttachmentPosition(attachment, x, y, nth, no_arcs, line);
1092         break;
1093       }
1094     }
1095
1096     // Old code
1097 #if 0
1098     switch (attachment)
1099     {
1100       case 0:
1101       {
1102         if (m_spaceAttachments)
1103         {
1104           if (line && (line->GetAlignmentType(isEnd) == LINE_ALIGNMENT_TO_NEXT_HANDLE))
1105           {
1106             // Align line according to the next handle along
1107             wxRealPoint *point = line->GetNextControlPoint(this);
1108             if (point->x < left)
1109               *x = left;
1110             else if (point->x > right)
1111               *x = right;
1112             else
1113               *x = point->x;
1114           }
1115           else
1116             *x = left + (nth + 1)*m_width/(no_arcs + 1);
1117         }
1118         else *x = m_xpos;
1119
1120         *y = bottom;
1121         break;
1122       }
1123       case 1:
1124       {
1125         *x = right;
1126         if (m_spaceAttachments)
1127         {
1128           if (line && (line->GetAlignmentType(isEnd) == LINE_ALIGNMENT_TO_NEXT_HANDLE))
1129           {
1130             // Align line according to the next handle along
1131             wxRealPoint *point = line->GetNextControlPoint(this);
1132             if (point->y < bottom)
1133               *y = bottom;
1134             else if (point->y > top)
1135               *y = top;
1136             else
1137               *y = point->y;
1138           }
1139           else
1140             *y = bottom + (nth + 1)*m_height/(no_arcs + 1);
1141         }
1142         else *y = m_ypos;
1143         break;
1144       }
1145       case 2:
1146       {
1147         if (m_spaceAttachments)
1148         {
1149           if (line && (line->GetAlignmentType(isEnd) == LINE_ALIGNMENT_TO_NEXT_HANDLE))
1150           {
1151             // Align line according to the next handle along
1152             wxRealPoint *point = line->GetNextControlPoint(this);
1153             if (point->x < left)
1154               *x = left;
1155             else if (point->x > right)
1156               *x = right;
1157             else
1158               *x = point->x;
1159           }
1160           else
1161             *x = left + (nth + 1)*m_width/(no_arcs + 1);
1162         }
1163         else *x = m_xpos;
1164         *y = top;
1165         break;
1166       }
1167       case 3:
1168       {
1169         *x = left;
1170         if (m_spaceAttachments)
1171         {
1172           if (line && (line->GetAlignmentType(isEnd) == LINE_ALIGNMENT_TO_NEXT_HANDLE))
1173           {
1174             // Align line according to the next handle along
1175             wxRealPoint *point = line->GetNextControlPoint(this);
1176             if (point->y < bottom)
1177               *y = bottom;
1178             else if (point->y > top)
1179               *y = top;
1180             else
1181               *y = point->y;
1182           }
1183           else
1184             *y = bottom + (nth + 1)*m_height/(no_arcs + 1);
1185         }
1186         else *y = m_ypos;
1187         break;
1188       }
1189       default:
1190       {
1191         return wxShape::GetAttachmentPosition(attachment, x, y, nth, no_arcs, line);
1192         break;
1193       }
1194     }
1195 #endif
1196     return TRUE;
1197   }
1198   else
1199   { *x = m_xpos; *y = m_ypos; return TRUE; }
1200 }
1201
1202 // Text object (no box)
1203
1204 IMPLEMENT_DYNAMIC_CLASS(wxTextShape, wxRectangleShape)
1205
1206 wxTextShape::wxTextShape(double width, double height):
1207   wxRectangleShape(width, height)
1208 {
1209 }
1210
1211 void wxTextShape::OnDraw(wxDC& dc)
1212 {
1213 }
1214
1215 void wxTextShape::Copy(wxShape& copy)
1216 {
1217   wxRectangleShape::Copy(copy);
1218 }
1219
1220 #ifdef PROLOGIO
1221 void wxTextShape::WritePrologAttributes(wxExpr *clause)
1222 {
1223   wxRectangleShape::WritePrologAttributes(clause);
1224 }
1225 #endif
1226
1227 // Ellipse object
1228
1229 IMPLEMENT_DYNAMIC_CLASS(wxEllipseShape, wxShape)
1230
1231 wxEllipseShape::wxEllipseShape(double w, double h)
1232 {
1233   m_width = w; m_height = h;
1234   SetDefaultRegionSize();
1235 }
1236
1237 void wxEllipseShape::GetBoundingBoxMin(double *w, double *h)
1238 {
1239   *w = m_width; *h = m_height;
1240 }
1241
1242 bool wxEllipseShape::GetPerimeterPoint(double x1, double y1,
1243                                       double x2, double y2,
1244                                       double *x3, double *y3)
1245 {
1246   double bound_x, bound_y;
1247   GetBoundingBoxMax(&bound_x, &bound_y);
1248
1249 //  oglFindEndForBox(bound_x, bound_y, m_xpos, m_ypos, x2, y2, x3, y3);
1250   oglDrawArcToEllipse(m_xpos, m_ypos, bound_x, bound_y, x2, y2, x1, y1, x3, y3);
1251
1252   return TRUE;
1253 }
1254
1255 void wxEllipseShape::OnDraw(wxDC& dc)
1256 {
1257     if (m_shadowMode != SHADOW_NONE)
1258     {
1259       if (m_shadowBrush)
1260         dc.SetBrush(m_shadowBrush);
1261       dc.SetPen(g_oglTransparentPen);
1262       dc.DrawEllipse((m_xpos - GetWidth()/2) + m_shadowOffsetX,
1263                       (m_ypos - GetHeight()/2) + m_shadowOffsetY,
1264                       GetWidth(), GetHeight());
1265     }
1266
1267     if (m_pen)
1268     {
1269       if (m_pen->GetWidth() == 0)
1270         dc.SetPen(g_oglTransparentPen);
1271       else
1272         dc.SetPen(m_pen);
1273     }
1274     if (m_brush)
1275       dc.SetBrush(m_brush);
1276     dc.DrawEllipse((m_xpos - GetWidth()/2), (m_ypos - GetHeight()/2), GetWidth(), GetHeight());
1277 }
1278
1279 void wxEllipseShape::SetSize(double x, double y, bool recursive)
1280 {
1281   SetAttachmentSize(x, y);
1282   m_width = x;
1283   m_height = y;
1284   SetDefaultRegionSize();
1285 }
1286
1287 #ifdef PROLOGIO
1288 void wxEllipseShape::WritePrologAttributes(wxExpr *clause)
1289 {
1290   wxShape::WritePrologAttributes(clause);
1291   clause->AddAttributeValue("x", m_xpos);
1292   clause->AddAttributeValue("y", m_ypos);
1293
1294   clause->AddAttributeValue("width", m_width);
1295   clause->AddAttributeValue("height", m_height);
1296 }
1297
1298 void wxEllipseShape::ReadPrologAttributes(wxExpr *clause)
1299 {
1300   wxShape::ReadPrologAttributes(clause);
1301   clause->AssignAttributeValue("width", &m_width);
1302   clause->AssignAttributeValue("height", &m_height);
1303
1304   // In case we're reading an old file, set the region's size
1305   if (m_regions.Number() == 1)
1306   {
1307     wxShapeRegion *region = (wxShapeRegion *)m_regions.First()->Data();
1308     region->SetSize(m_width, m_height);
1309   }
1310 }
1311 #endif
1312
1313 void wxEllipseShape::Copy(wxShape& copy)
1314 {
1315   wxShape::Copy(copy);
1316
1317   wxASSERT( copy.IsKindOf(CLASSINFO(wxEllipseShape)) );
1318
1319   wxEllipseShape& ellipseCopy = (wxEllipseShape&) copy;
1320
1321   ellipseCopy.m_width = m_width;
1322   ellipseCopy.m_height = m_height;
1323 }
1324
1325 int wxEllipseShape::GetNumberOfAttachments()
1326 {
1327   return wxShape::GetNumberOfAttachments();
1328 }
1329
1330 // There are 4 attachment points on an ellipse - 0 = top, 1 = right, 2 = bottom,
1331 // 3 = left.
1332 bool wxEllipseShape::GetAttachmentPosition(int attachment, double *x, double *y,
1333                                          int nth, int no_arcs, wxLineShape *line)
1334 {
1335   if (m_attachmentMode)
1336   {
1337     double top = (double)(m_ypos + m_height/2.0);
1338     double bottom = (double)(m_ypos - m_height/2.0);
1339     double left = (double)(m_xpos - m_width/2.0);
1340     double right = (double)(m_xpos + m_width/2.0);
1341     switch (attachment)
1342     {
1343       case 0:
1344       {
1345         if (m_spaceAttachments)
1346           *x = left + (nth + 1)*m_width/(no_arcs + 1);
1347         else *x = m_xpos;
1348         *y = top;
1349         // We now have the point on the bounding box: but get the point on the ellipse
1350         // by imagining a vertical line from (*x, m_ypos - m_height- 500) to (*x, m_ypos) intersecting
1351         // the ellipse.
1352         oglDrawArcToEllipse(m_xpos, m_ypos, m_width, m_height, *x, (double)(m_ypos-m_height-500), *x, m_ypos, x, y);
1353         break;
1354       }
1355       case 1:
1356       {
1357         *x = right;
1358         if (m_spaceAttachments)
1359           *y = bottom + (nth + 1)*m_height/(no_arcs + 1);
1360         else *y = m_ypos;
1361         oglDrawArcToEllipse(m_xpos, m_ypos, m_width, m_height, (double)(m_xpos+m_width+500), *y, m_xpos, *y, x, y);
1362         break;
1363       }
1364       case 2:
1365       {
1366         if (m_spaceAttachments)
1367           *x = left + (nth + 1)*m_width/(no_arcs + 1);
1368         else *x = m_xpos;
1369         *y = bottom;
1370         oglDrawArcToEllipse(m_xpos, m_ypos, m_width, m_height, *x, (double)(m_ypos+m_height+500), *x, m_ypos, x, y);
1371         break;
1372       }
1373       case 3:
1374       {
1375         *x = left;
1376         if (m_spaceAttachments)
1377           *y = bottom + (nth + 1)*m_height/(no_arcs + 1);
1378         else *y = m_ypos;
1379         oglDrawArcToEllipse(m_xpos, m_ypos, m_width, m_height, (double)(m_xpos-m_width-500), *y, m_xpos, *y, x, y);
1380         break;
1381       }
1382       default:
1383       {
1384         return wxShape::GetAttachmentPosition(attachment, x, y, nth, no_arcs, line);
1385         break;
1386       }
1387     }
1388     return TRUE;
1389   }
1390   else
1391   { *x = m_xpos; *y = m_ypos; return TRUE; }
1392 }
1393
1394
1395 // Circle object
1396 IMPLEMENT_DYNAMIC_CLASS(wxCircleShape, wxEllipseShape)
1397
1398 wxCircleShape::wxCircleShape(double diameter):wxEllipseShape(diameter, diameter)
1399 {
1400 }
1401
1402 void wxCircleShape::Copy(wxShape& copy)
1403 {
1404   wxEllipseShape::Copy(copy);
1405 }
1406
1407 bool wxCircleShape::GetPerimeterPoint(double x1, double y1,
1408                                       double x2, double y2,
1409                                       double *x3, double *y3)
1410 {
1411   oglFindEndForCircle(m_width/2,
1412                       m_xpos, m_ypos,  // Centre of circle
1413                       x2, y2,  // Other end of line
1414                       x3, y3);
1415
1416   return TRUE;
1417 }
1418
1419 // Control points
1420
1421 double wxControlPoint::controlPointDragStartX = 0.0;
1422 double wxControlPoint::controlPointDragStartY = 0.0;
1423 double wxControlPoint::controlPointDragStartWidth = 0.0;
1424 double wxControlPoint::controlPointDragStartHeight = 0.0;
1425 double wxControlPoint::controlPointDragEndWidth = 0.0;
1426 double wxControlPoint::controlPointDragEndHeight = 0.0;
1427 double wxControlPoint::controlPointDragPosX = 0.0;
1428 double wxControlPoint::controlPointDragPosY = 0.0;
1429
1430 IMPLEMENT_DYNAMIC_CLASS(wxControlPoint, wxRectangleShape)
1431
1432 wxControlPoint::wxControlPoint(wxShapeCanvas *theCanvas, wxShape *object, double size, double the_xoffset, double the_yoffset, int the_type):wxRectangleShape(size, size)
1433 {
1434   m_canvas = theCanvas;
1435   m_shape = object;
1436   m_xoffset = the_xoffset;
1437   m_yoffset = the_yoffset;
1438   m_type = the_type;
1439   SetPen(g_oglBlackForegroundPen);
1440   SetBrush(wxBLACK_BRUSH);
1441   m_oldCursor = NULL;
1442   m_visible = TRUE;
1443   m_eraseObject = TRUE;
1444 }
1445
1446 wxControlPoint::~wxControlPoint()
1447 {
1448 }
1449
1450 // Don't even attempt to draw any text - waste of time!
1451 void wxControlPoint::OnDrawContents(wxDC& dc)
1452 {
1453 }
1454
1455 void wxControlPoint::OnDraw(wxDC& dc)
1456 {
1457   m_xpos = m_shape->GetX() + m_xoffset;
1458   m_ypos = m_shape->GetY() + m_yoffset;
1459   wxRectangleShape::OnDraw(dc);
1460 }
1461
1462 void wxControlPoint::OnErase(wxDC& dc)
1463 {
1464   wxRectangleShape::OnErase(dc);
1465 }
1466
1467 // Implement resizing of canvas object
1468 void wxControlPoint::OnDragLeft(bool draw, double x, double y, int keys, int attachment)
1469 {
1470     m_shape->GetEventHandler()->OnSizingDragLeft(this, draw, x, y, keys, attachment);
1471 }
1472
1473 void wxControlPoint::OnBeginDragLeft(double x, double y, int keys, int attachment)
1474 {
1475     m_shape->GetEventHandler()->OnSizingBeginDragLeft(this, x, y, keys, attachment);
1476 }
1477
1478 void wxControlPoint::OnEndDragLeft(double x, double y, int keys, int attachment)
1479 {
1480     m_shape->GetEventHandler()->OnSizingEndDragLeft(this, x, y, keys, attachment);
1481 }
1482
1483 int wxControlPoint::GetNumberOfAttachments()
1484 {
1485   return 1;
1486 }
1487
1488 bool wxControlPoint::GetAttachmentPosition(int attachment, double *x, double *y,
1489                                          int nth, int no_arcs, wxLineShape *line)
1490 {
1491   *x = m_xpos; *y = m_ypos;
1492   return TRUE;
1493 }
1494
1495 // Control points ('handles') redirect control to the actual shape, to make it easier
1496 // to override sizing behaviour.
1497 void wxShape::OnSizingDragLeft(wxControlPoint* pt, bool draw, double x, double y, int keys, int attachment)
1498 {
1499   double bound_x;
1500   double bound_y;
1501   this->GetBoundingBoxMin(&bound_x, &bound_y);
1502
1503   wxClientDC dc(GetCanvas());
1504   GetCanvas()->PrepareDC(dc);
1505
1506   dc.SetLogicalFunction(wxXOR);
1507
1508   wxPen dottedPen(wxColour(0, 0, 0), 1, wxDOT);
1509   dc.SetPen(dottedPen);
1510   dc.SetBrush((* wxTRANSPARENT_BRUSH));
1511
1512   if (this->GetCentreResize())
1513   {
1514     // Maintain the same centre point.
1515     double new_width = (double)(2.0*fabs(x - this->GetX()));
1516     double new_height = (double)(2.0*fabs(y - this->GetY()));
1517
1518     // Constrain sizing according to what control point you're dragging
1519     if (pt->m_type == CONTROL_POINT_HORIZONTAL)
1520       new_height = bound_y;
1521     else if (pt->m_type == CONTROL_POINT_VERTICAL)
1522       new_width = bound_x;
1523     else if (pt->m_type == CONTROL_POINT_DIAGONAL && (keys & KEY_SHIFT))
1524       new_height = bound_y*(new_width/bound_x);
1525
1526     if (this->GetFixedWidth())
1527       new_width = bound_x;
1528
1529     if (this->GetFixedHeight())
1530       new_height = bound_y;
1531
1532     pt->controlPointDragEndWidth = new_width;
1533     pt->controlPointDragEndHeight = new_height;
1534
1535     this->GetEventHandler()->OnDrawOutline(dc, this->GetX(), this->GetY(),
1536                                 new_width, new_height);
1537   }
1538   else
1539   {
1540     // Don't maintain the same centre point!
1541     double newX1 = wxMin(pt->controlPointDragStartX, x);
1542     double newY1 = wxMin(pt->controlPointDragStartY, y);
1543     double newX2 = wxMax(pt->controlPointDragStartX, x);
1544     double newY2 = wxMax(pt->controlPointDragStartY, y);
1545     if (pt->m_type == CONTROL_POINT_HORIZONTAL)
1546     {
1547       newY1 = pt->controlPointDragStartY;
1548       newY2 = newY1 + pt->controlPointDragStartHeight;
1549     }
1550     else if (pt->m_type == CONTROL_POINT_VERTICAL)
1551     {
1552       newX1 = pt->controlPointDragStartX;
1553       newX2 = newX1 + pt->controlPointDragStartWidth;
1554     }
1555     else if (pt->m_type == CONTROL_POINT_DIAGONAL && (keys & KEY_SHIFT))
1556     {
1557       double newH = (double)((newX2 - newX1)*(pt->controlPointDragStartHeight/pt->controlPointDragStartWidth));
1558       if (GetY() > pt->controlPointDragStartY)
1559         newY2 = (double)(newY1 + newH);
1560       else
1561         newY1 = (double)(newY2 - newH);
1562     }
1563     double newWidth = (double)(newX2 - newX1);
1564     double newHeight = (double)(newY2 - newY1);
1565
1566     pt->controlPointDragPosX = (double)(newX1 + (newWidth/2.0));
1567     pt->controlPointDragPosY = (double)(newY1 + (newHeight/2.0));
1568     if (this->GetFixedWidth())
1569       newWidth = bound_x;
1570
1571     if (this->GetFixedHeight())
1572       newHeight = bound_y;
1573
1574     pt->controlPointDragEndWidth = newWidth;
1575     pt->controlPointDragEndHeight = newHeight;
1576     this->GetEventHandler()->OnDrawOutline(dc, pt->controlPointDragPosX, pt->controlPointDragPosY, newWidth, newHeight);
1577   }
1578 }
1579
1580 void wxShape::OnSizingBeginDragLeft(wxControlPoint* pt, double x, double y, int keys, int attachment)
1581 {
1582   m_canvas->CaptureMouse();
1583
1584   wxClientDC dc(GetCanvas());
1585   GetCanvas()->PrepareDC(dc);
1586
1587   if (pt->m_eraseObject)
1588     this->Erase(dc);
1589
1590   dc.SetLogicalFunction(wxXOR);
1591
1592   double bound_x;
1593   double bound_y;
1594   this->GetBoundingBoxMin(&bound_x, &bound_y);
1595
1596   // Choose the 'opposite corner' of the object as the stationary
1597   // point in case this is non-centring resizing.
1598   if (pt->GetX() < this->GetX())
1599     pt->controlPointDragStartX = (double)(this->GetX() + (bound_x/2.0));
1600   else
1601     pt->controlPointDragStartX = (double)(this->GetX() - (bound_x/2.0));
1602
1603   if (pt->GetY() < this->GetY())
1604     pt->controlPointDragStartY = (double)(this->GetY() + (bound_y/2.0));
1605   else
1606     pt->controlPointDragStartY = (double)(this->GetY() - (bound_y/2.0));
1607
1608   if (pt->m_type == CONTROL_POINT_HORIZONTAL)
1609     pt->controlPointDragStartY = (double)(this->GetY() - (bound_y/2.0));
1610   else if (pt->m_type == CONTROL_POINT_VERTICAL)
1611     pt->controlPointDragStartX = (double)(this->GetX() - (bound_x/2.0));
1612
1613   // We may require the old width and height.
1614   pt->controlPointDragStartWidth = bound_x;
1615   pt->controlPointDragStartHeight = bound_y;
1616
1617   wxPen dottedPen(wxColour(0, 0, 0), 1, wxDOT);
1618   dc.SetPen(dottedPen);
1619   dc.SetBrush((* wxTRANSPARENT_BRUSH));
1620
1621   if (this->GetCentreResize())
1622   {
1623     double new_width = (double)(2.0*fabs(x - this->GetX()));
1624     double new_height = (double)(2.0*fabs(y - this->GetY()));
1625
1626     // Constrain sizing according to what control point you're dragging
1627     if (pt->m_type == CONTROL_POINT_HORIZONTAL)
1628       new_height = bound_y;
1629     else if (pt->m_type == CONTROL_POINT_VERTICAL)
1630       new_width = bound_x;
1631     else if (pt->m_type == CONTROL_POINT_DIAGONAL && (keys & KEY_SHIFT))
1632       new_height = bound_y*(new_width/bound_x);
1633
1634     if (this->GetFixedWidth())
1635       new_width = bound_x;
1636
1637     if (this->GetFixedHeight())
1638       new_height = bound_y;
1639
1640     pt->controlPointDragEndWidth = new_width;
1641     pt->controlPointDragEndHeight = new_height;
1642     this->GetEventHandler()->OnDrawOutline(dc, this->GetX(), this->GetY(),
1643                                 new_width, new_height);
1644   }
1645   else
1646   {
1647     // Don't maintain the same centre point!
1648     double newX1 = wxMin(pt->controlPointDragStartX, x);
1649     double newY1 = wxMin(pt->controlPointDragStartY, y);
1650     double newX2 = wxMax(pt->controlPointDragStartX, x);
1651     double newY2 = wxMax(pt->controlPointDragStartY, y);
1652     if (pt->m_type == CONTROL_POINT_HORIZONTAL)
1653     {
1654       newY1 = pt->controlPointDragStartY;
1655       newY2 = newY1 + pt->controlPointDragStartHeight;
1656     }
1657     else if (pt->m_type == CONTROL_POINT_VERTICAL)
1658     {
1659       newX1 = pt->controlPointDragStartX;
1660       newX2 = newX1 + pt->controlPointDragStartWidth;
1661     }
1662     else if (pt->m_type == CONTROL_POINT_DIAGONAL && (keys & KEY_SHIFT))
1663     {
1664       double newH = (double)((newX2 - newX1)*(pt->controlPointDragStartHeight/pt->controlPointDragStartWidth));
1665       if (pt->GetY() > pt->controlPointDragStartY)
1666         newY2 = (double)(newY1 + newH);
1667       else
1668         newY1 = (double)(newY2 - newH);
1669     }
1670     double newWidth = (double)(newX2 - newX1);
1671     double newHeight = (double)(newY2 - newY1);
1672
1673     pt->controlPointDragPosX = (double)(newX1 + (newWidth/2.0));
1674     pt->controlPointDragPosY = (double)(newY1 + (newHeight/2.0));
1675     if (this->GetFixedWidth())
1676       newWidth = bound_x;
1677
1678     if (this->GetFixedHeight())
1679       newHeight = bound_y;
1680
1681     pt->controlPointDragEndWidth = newWidth;
1682     pt->controlPointDragEndHeight = newHeight;
1683     this->GetEventHandler()->OnDrawOutline(dc, pt->controlPointDragPosX, pt->controlPointDragPosY, newWidth, newHeight);
1684   }
1685 }
1686
1687 void wxShape::OnSizingEndDragLeft(wxControlPoint* pt, double x, double y, int keys, int attachment)
1688 {
1689   wxClientDC dc(GetCanvas());
1690   GetCanvas()->PrepareDC(dc);
1691
1692   m_canvas->ReleaseMouse();
1693   dc.SetLogicalFunction(wxCOPY);
1694   this->Recompute();
1695   this->ResetControlPoints();
1696
1697   if (!pt->m_eraseObject)
1698     this->Show(FALSE);
1699
1700   this->SetSize(pt->controlPointDragEndWidth, pt->controlPointDragEndHeight);
1701
1702   // The next operation could destroy this control point (it does for label objects,
1703   // via formatting the text), so save all values we're going to use, or
1704   // we'll be accessing garbage.
1705   wxShape *theObject = this;
1706   wxShapeCanvas *theCanvas = m_canvas;
1707   bool eraseIt = pt->m_eraseObject;
1708
1709   if (theObject->GetCentreResize())
1710     theObject->Move(dc, theObject->GetX(), theObject->GetY());
1711   else
1712     theObject->Move(dc, pt->controlPointDragPosX, pt->controlPointDragPosY);
1713
1714   if (!eraseIt)
1715     theObject->Show(TRUE);
1716
1717   // Recursively redraw links if we have a composite.
1718   if (theObject->GetChildren().Number() > 0)
1719     theObject->DrawLinks(dc, -1, TRUE);
1720
1721   double width, height;
1722   theObject->GetBoundingBoxMax(&width, &height);
1723   theObject->GetEventHandler()->OnEndSize(width, height);
1724
1725   if (!theCanvas->GetQuickEditMode() && eraseIt) theCanvas->Redraw(dc);
1726 }
1727
1728
1729
1730 // Polygon control points
1731
1732 IMPLEMENT_DYNAMIC_CLASS(wxPolygonControlPoint, wxControlPoint)
1733
1734 wxPolygonControlPoint::wxPolygonControlPoint(wxShapeCanvas *theCanvas, wxShape *object, double size,
1735   wxRealPoint *vertex, double the_xoffset, double the_yoffset):
1736   wxControlPoint(theCanvas, object, size, the_xoffset, the_yoffset, 0)
1737 {
1738   m_polygonVertex = vertex;
1739   m_originalDistance = 0.0;
1740 }
1741
1742 wxPolygonControlPoint::~wxPolygonControlPoint()
1743 {
1744 }
1745
1746 // Calculate what new size would be, at end of resize
1747 void wxPolygonControlPoint::CalculateNewSize(double x, double y)
1748 {
1749   double bound_x;
1750   double bound_y;
1751   GetShape()->GetBoundingBoxMin(&bound_x, &bound_y);
1752
1753   double dist = (double)sqrt((x - m_shape->GetX())*(x - m_shape->GetX()) +
1754                     (y - m_shape->GetY())*(y - m_shape->GetY()));
1755
1756   m_newSize.x = (double)(dist/this->m_originalDistance)*this->m_originalSize.x;
1757   m_newSize.y = (double)(dist/this->m_originalDistance)*this->m_originalSize.y;
1758 }
1759
1760
1761 // Implement resizing polygon or moving the vertex.
1762 void wxPolygonControlPoint::OnDragLeft(bool draw, double x, double y, int keys, int attachment)
1763 {
1764     m_shape->GetEventHandler()->OnSizingDragLeft(this, draw, x, y, keys, attachment);
1765 }
1766
1767 void wxPolygonControlPoint::OnBeginDragLeft(double x, double y, int keys, int attachment)
1768 {
1769     m_shape->GetEventHandler()->OnSizingBeginDragLeft(this, x, y, keys, attachment);
1770 }
1771
1772 void wxPolygonControlPoint::OnEndDragLeft(double x, double y, int keys, int attachment)
1773 {
1774     m_shape->GetEventHandler()->OnSizingEndDragLeft(this, x, y, keys, attachment);
1775 }
1776
1777 // Control points ('handles') redirect control to the actual shape, to make it easier
1778 // to override sizing behaviour.
1779 void wxPolygonShape::OnSizingDragLeft(wxControlPoint* pt, bool draw, double x, double y, int keys, int attachment)
1780 {
1781   wxPolygonControlPoint* ppt = (wxPolygonControlPoint*) pt;
1782
1783   wxClientDC dc(GetCanvas());
1784   GetCanvas()->PrepareDC(dc);
1785
1786   dc.SetLogicalFunction(wxXOR);
1787
1788   wxPen dottedPen(wxColour(0, 0, 0), 1, wxDOT);
1789   dc.SetPen(dottedPen);
1790   dc.SetBrush((* wxTRANSPARENT_BRUSH));
1791
1792   if (0) // keys & KEY_CTRL)
1793   {
1794     // TODO: mend this code. Currently we rely on altering the
1795     // actual points, but we should assume we're not, as per
1796     // the normal sizing case.
1797     m_canvas->Snap(&x, &y);
1798
1799     // Move point
1800     ppt->m_polygonVertex->x = x - this->GetX();
1801     ppt->m_polygonVertex->y = y - this->GetY();
1802     ppt->SetX(x);
1803     ppt->SetY(y);
1804     ((wxPolygonShape *)this)->CalculateBoundingBox();
1805     ((wxPolygonShape *)this)->CalculatePolygonCentre();
1806   }
1807   else
1808   {
1809     ppt->CalculateNewSize(x, y);
1810   }
1811
1812   this->GetEventHandler()->OnDrawOutline(dc, this->GetX(), this->GetY(),
1813        ppt->GetNewSize().x, ppt->GetNewSize().y);
1814 }
1815
1816 void wxPolygonShape::OnSizingBeginDragLeft(wxControlPoint* pt, double x, double y, int keys, int attachment)
1817 {
1818   wxPolygonControlPoint* ppt = (wxPolygonControlPoint*) pt;
1819
1820   wxClientDC dc(GetCanvas());
1821   GetCanvas()->PrepareDC(dc);
1822
1823   this->Erase(dc);
1824
1825   dc.SetLogicalFunction(wxXOR);
1826
1827   double bound_x;
1828   double bound_y;
1829   this->GetBoundingBoxMin(&bound_x, &bound_y);
1830
1831   double dist = (double)sqrt((x - this->GetX())*(x - this->GetX()) +
1832                     (y - this->GetY())*(y - this->GetY()));
1833   ppt->m_originalDistance = dist;
1834   ppt->m_originalSize.x = bound_x;
1835   ppt->m_originalSize.y = bound_y;
1836
1837   if (ppt->m_originalDistance == 0.0) ppt->m_originalDistance = (double) 0.0001;
1838
1839   wxPen dottedPen(wxColour(0, 0, 0), 1, wxDOT);
1840   dc.SetPen(dottedPen);
1841   dc.SetBrush((* wxTRANSPARENT_BRUSH));
1842
1843   if (0) // keys & KEY_CTRL)
1844   {
1845     // TODO: mend this code. Currently we rely on altering the
1846     // actual points, but we should assume we're not, as per
1847     // the normal sizing case.
1848     m_canvas->Snap(&x, &y);
1849
1850     // Move point
1851     ppt->m_polygonVertex->x = x - this->GetX();
1852     ppt->m_polygonVertex->y = y - this->GetY();
1853     ppt->SetX(x);
1854     ppt->SetY(y);
1855     ((wxPolygonShape *)this)->CalculateBoundingBox();
1856     ((wxPolygonShape *)this)->CalculatePolygonCentre();
1857   }
1858   else
1859   {
1860     ppt->CalculateNewSize(x, y);
1861   }
1862
1863   this->GetEventHandler()->OnDrawOutline(dc, this->GetX(), this->GetY(),
1864        ppt->GetNewSize().x, ppt->GetNewSize().y);
1865
1866   m_canvas->CaptureMouse();
1867 }
1868
1869 void wxPolygonShape::OnSizingEndDragLeft(wxControlPoint* pt, double x, double y, int keys, int attachment)
1870 {
1871   wxPolygonControlPoint* ppt = (wxPolygonControlPoint*) pt;
1872
1873   wxClientDC dc(GetCanvas());
1874   GetCanvas()->PrepareDC(dc);
1875
1876   m_canvas->ReleaseMouse();
1877   dc.SetLogicalFunction(wxCOPY);
1878
1879   // If we're changing shape, must reset the original points
1880   if (keys & KEY_CTRL)
1881   {
1882     ((wxPolygonShape *)this)->CalculateBoundingBox();
1883     ((wxPolygonShape *)this)->UpdateOriginalPoints();
1884   }
1885   else
1886   {
1887     SetSize(ppt->GetNewSize().x, ppt->GetNewSize().y);
1888   }
1889
1890   ((wxPolygonShape *)this)->CalculateBoundingBox();
1891   ((wxPolygonShape *)this)->CalculatePolygonCentre();
1892
1893   this->Recompute();
1894   this->ResetControlPoints();
1895   this->Move(dc, this->GetX(), this->GetY());
1896   if (!m_canvas->GetQuickEditMode()) m_canvas->Redraw(dc);
1897 }
1898
1899 /*
1900  * Object region
1901  *
1902  */
1903 IMPLEMENT_DYNAMIC_CLASS(wxShapeRegion, wxObject)
1904
1905 wxShapeRegion::wxShapeRegion()
1906 {
1907   m_regionText = "";
1908   m_font = g_oglNormalFont;
1909   m_minHeight = 5.0;
1910   m_minWidth = 5.0;
1911   m_width = 0.0;
1912   m_height = 0.0;
1913   m_x = 0.0;
1914   m_y = 0.0;
1915
1916   m_regionProportionX = -1.0;
1917   m_regionProportionY = -1.0;
1918   m_formatMode = FORMAT_CENTRE_HORIZ | FORMAT_CENTRE_VERT;
1919   m_regionName = "";
1920   m_textColour = "BLACK";
1921   m_penColour = "BLACK";
1922   m_penStyle = wxSOLID;
1923   m_actualColourObject = NULL;
1924   m_actualPenObject = NULL;
1925 }
1926
1927 wxShapeRegion::wxShapeRegion(wxShapeRegion& region)
1928 {
1929   m_regionText = region.m_regionText;
1930   m_regionName = region.m_regionName;
1931   m_textColour = region.m_textColour;
1932
1933   m_font = region.m_font;
1934   m_minHeight = region.m_minHeight;
1935   m_minWidth = region.m_minWidth;
1936   m_width = region.m_width;
1937   m_height = region.m_height;
1938   m_x = region.m_x;
1939   m_y = region.m_y;
1940
1941   m_regionProportionX = region.m_regionProportionX;
1942   m_regionProportionY = region.m_regionProportionY;
1943   m_formatMode = region.m_formatMode;
1944   m_actualColourObject = NULL;
1945   m_actualPenObject = NULL;
1946   m_penStyle = region.m_penStyle;
1947   m_penColour = region.m_penColour;
1948
1949   ClearText();
1950   wxNode *node = region.m_formattedText.First();
1951   while (node)
1952   {
1953     wxShapeTextLine *line = (wxShapeTextLine *)node->Data();
1954     wxShapeTextLine *new_line =
1955       new wxShapeTextLine(line->GetX(), line->GetY(), line->GetText());
1956     m_formattedText.Append(new_line);
1957     node = node->Next();
1958   }
1959 }
1960
1961 wxShapeRegion::~wxShapeRegion()
1962 {
1963   ClearText();
1964 }
1965
1966 void wxShapeRegion::ClearText()
1967 {
1968   wxNode *node = m_formattedText.First();
1969   while (node)
1970   {
1971     wxShapeTextLine *line = (wxShapeTextLine *)node->Data();
1972     wxNode *next = node->Next();
1973     delete line;
1974     delete node;
1975     node = next;
1976   }
1977 }
1978
1979 void wxShapeRegion::SetFont(wxFont *f)
1980 {
1981   m_font = f;
1982 }
1983
1984 void wxShapeRegion::SetMinSize(double w, double h)
1985 {
1986   m_minWidth = w;
1987   m_minHeight = h;
1988 }
1989
1990 void wxShapeRegion::SetSize(double w, double h)
1991 {
1992   m_width = w;
1993   m_height = h;
1994 }
1995
1996 void wxShapeRegion::SetPosition(double xp, double yp)
1997 {
1998   m_x = xp;
1999   m_y = yp;
2000 }
2001
2002 void wxShapeRegion::SetProportions(double xp, double yp)
2003 {
2004   m_regionProportionX = xp;
2005   m_regionProportionY = yp;
2006 }
2007
2008 void wxShapeRegion::SetFormatMode(int mode)
2009 {
2010   m_formatMode = mode;
2011 }
2012
2013 void wxShapeRegion::SetColour(const wxString& col)
2014 {
2015   m_textColour = col;
2016   m_actualColourObject = NULL;
2017 }
2018
2019 wxColour *wxShapeRegion::GetActualColourObject()
2020 {
2021   if (!m_actualColourObject)
2022     m_actualColourObject = wxTheColourDatabase->FindColour(GetColour());
2023   if (!m_actualColourObject)
2024     m_actualColourObject = wxBLACK;
2025   return m_actualColourObject;
2026 }
2027
2028 void wxShapeRegion::SetPenColour(const wxString& col)
2029 {
2030   m_penColour = col;
2031   m_actualPenObject = NULL;
2032 }
2033
2034 // Returns NULL if the pen is invisible
2035 // (different to pen being transparent; indicates that
2036 // region boundary should not be drawn.)
2037 wxPen *wxShapeRegion::GetActualPen()
2038 {
2039   if (m_actualPenObject)
2040     return m_actualPenObject;
2041
2042   if (!m_penColour) return NULL;
2043   if (m_penColour == "Invisible")
2044     return NULL;
2045   m_actualPenObject = wxThePenList->FindOrCreatePen(m_penColour, 1, m_penStyle);
2046   return m_actualPenObject;
2047 }
2048
2049