contrib/src/ogl/drawn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        drawn.cpp
   3 // Purpose:     wxDrawnShape
   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 "drawn.h"
  14 #pragma implementation "drawnp.h"
  15 #endif
  16
  17 // For compilers that support precompilation, includes "wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21 #pragma hdrstop
  22 #endif
  23
  24 #ifndef WX_PRECOMP
  25 #include <wx/wx.h>
  26 #endif
  27
  28 #include <wx/wxexpr.h>
  29
  30 #include <wx/ogl/basic.h>
  31 #include <wx/ogl/basicp.h>
  32 #include <wx/ogl/canvas.h>
  33 #include <wx/ogl/mfutils.h>
  34 #include <wx/ogl/drawn.h>
  35 #include <wx/ogl/drawnp.h>
  36 #include <wx/ogl/misc.h>
  37
  38 static void IntToHex(unsigned int dec, char *buf);
  39 static unsigned long HexToInt(char *buf);
  40 extern char *oglBuffer;
  41
  42 #define gyTYPE_PEN   40
  43 #define gyTYPE_BRUSH 41
  44 #define gyTYPE_FONT  42
  45
  46 /*
  47  * Drawn object
  48  *
  49  */
  50
  51 IMPLEMENT_DYNAMIC_CLASS(wxDrawnShape, wxRectangleShape)
  52
  53 wxDrawnShape::wxDrawnShape():wxRectangleShape(100.0, 50.0)
  54 {
  55   m_saveToFile = TRUE;
  56   m_currentAngle = oglDRAWN_ANGLE_0;
  57 }
  58
  59 wxDrawnShape::~wxDrawnShape()
  60 {
  61 }
  62
  63 void wxDrawnShape::OnDraw(wxDC& dc)
  64 {
  65   // Pass pen and brush in case we have force outline
  66   // and fill colours
  67   if (m_shadowMode != SHADOW_NONE)
  68   {
  69     if (m_shadowBrush)
  70       m_metafiles[m_currentAngle].m_fillBrush = m_shadowBrush;
  71     m_metafiles[m_currentAngle].m_outlinePen = g_oglTransparentPen;
  72     m_metafiles[m_currentAngle].Draw(dc, m_xpos + m_shadowOffsetX, m_ypos + m_shadowOffsetY);
  73   }
  74
  75   m_metafiles[m_currentAngle].m_outlinePen = m_pen;
  76   m_metafiles[m_currentAngle].m_fillBrush = m_brush;
  77   m_metafiles[m_currentAngle].Draw(dc, m_xpos, m_ypos);
  78 }
  79
  80 void wxDrawnShape::SetSize(double w, double h, bool recursive)
  81 {
  82   SetAttachmentSize(w, h);
  83
  84   double scaleX;
  85   double scaleY;
  86   if (GetWidth() == 0.0)
  87     scaleX = 1.0;
  88   else scaleX = w/GetWidth();
  89   if (GetHeight() == 0.0)
  90     scaleY = 1.0;
  91   else scaleY = h/GetHeight();
  92
  93   int i = 0;
  94   for (i = 0; i < 4; i++)
  95   {
  96     if (m_metafiles[i].IsValid())
  97         m_metafiles[i].Scale(scaleX, scaleY);
  98   }
  99   m_width = w;
 100   m_height = h;
 101   SetDefaultRegionSize();
 102 }
 103
 104 void wxDrawnShape::Scale(double sx, double sy)
 105 {
 106     int i;
 107     for (i = 0; i < 4; i++)
 108     {
 109         if (m_metafiles[i].IsValid())
 110         {
 111             m_metafiles[i].Scale(sx, sy);
 112             m_metafiles[i].CalculateSize(this);
 113         }
 114     }
 115 }
 116
 117 void wxDrawnShape::Translate(double x, double y)
 118 {
 119     int i;
 120     for (i = 0; i < 4; i++)
 121     {
 122         if (m_metafiles[i].IsValid())
 123         {
 124             m_metafiles[i].Translate(x, y);
 125             m_metafiles[i].CalculateSize(this);
 126         }
 127     }
 128 }
 129
 130 // theta is absolute rotation from the zero position
 131 void wxDrawnShape::Rotate(double x, double y, double theta)
 132 {
 133   m_currentAngle = DetermineMetaFile(theta);
 134
 135   if (m_currentAngle == 0)
 136   {
 137     // Rotate metafile
 138     if (!m_metafiles[0].GetRotateable())
 139       return;
 140
 141     m_metafiles[0].Rotate(x, y, theta);
 142   }
 143
 144   double actualTheta = theta-m_rotation;
 145
 146   // Rotate attachment points
 147   double sinTheta = (double)sin(actualTheta);
 148   double cosTheta = (double)cos(actualTheta);
 149   wxNode *node = m_attachmentPoints.First();
 150   while (node)
 151   {
 152     wxAttachmentPoint *point = (wxAttachmentPoint *)node->Data();
 153     double x1 = point->m_x;
 154     double y1 = point->m_y;
 155     point->m_x = x1*cosTheta - y1*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 156     point->m_y = x1*sinTheta + y1*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 157     node = node->Next();
 158   }
 159   m_rotation = theta;
 160
 161   m_metafiles[m_currentAngle].CalculateSize(this);
 162 }
 163
 164 // Which metafile do we use now? Based on current rotation and validity
 165 // of metafiles.
 166
 167 int wxDrawnShape::DetermineMetaFile(double rotation)
 168 {
 169     double tolerance = 0.0001;
 170     const double pi = 3.1415926535897932384626433832795 ;
 171     double angle1 = 0.0;
 172     double angle2 = pi/2.0;
 173     double angle3 = pi;
 174     double angle4 = 3.0*pi/2.0;
 175
 176     int whichMetafile = 0;
 177
 178     if (oglRoughlyEqual(rotation, angle1, tolerance))
 179     {
 180         whichMetafile = 0;
 181     }
 182     else if (oglRoughlyEqual(rotation, angle2, tolerance))
 183     {
 184         whichMetafile = 1;
 185     }
 186     else if (oglRoughlyEqual(rotation, angle3, tolerance))
 187     {
 188         whichMetafile = 2;
 189     }
 190     else if (oglRoughlyEqual(rotation, angle4, tolerance))
 191     {
 192         whichMetafile = 3;
 193     }
 194
 195     if ((whichMetafile > 0) && !m_metafiles[whichMetafile].IsValid())
 196         whichMetafile = 0;
 197
 198     return whichMetafile;
 199 }
 200
 201 void wxDrawnShape::OnDrawOutline(wxDC& dc, double x, double y, double w, double h)
 202 {
 203     if (m_metafiles[m_currentAngle].GetOutlineOp() != -1)
 204     {
 205         wxNode* node = m_metafiles[m_currentAngle].GetOps().Nth(m_metafiles[m_currentAngle].GetOutlineOp());
 206         wxASSERT (node != NULL);
 207         wxDrawOp* op = (wxDrawOp*) node->Data();
 208
 209         if (op->OnDrawOutline(dc, x, y, w, h, m_width, m_height))
 210             return;
 211     }
 212
 213     // Default... just use a rectangle
 214     wxRectangleShape::OnDrawOutline(dc, x, y, w, h);
 215 }
 216
 217 // Get the perimeter point using the special outline op, if there is one,
 218 // otherwise use default wxRectangleShape scheme
 219 bool wxDrawnShape::GetPerimeterPoint(double x1, double y1,
 220                                      double x2, double y2,
 221                                      double *x3, double *y3)
 222 {
 223     if (m_metafiles[m_currentAngle].GetOutlineOp() != -1)
 224     {
 225         wxNode* node = m_metafiles[m_currentAngle].GetOps().Nth(m_metafiles[m_currentAngle].GetOutlineOp());
 226         wxASSERT (node != NULL);
 227         wxDrawOp* op = (wxDrawOp*) node->Data();
 228
 229         if (op->GetPerimeterPoint(x1, y1, x2, y2, x3, y3, GetX(), GetY(), GetAttachmentMode()))
 230             return TRUE;
 231     }
 232
 233     // Default... just use a rectangle
 234     return wxRectangleShape::GetPerimeterPoint(x1, y1, x2, y2, x3, y3);
 235 }
 236
 237 #ifdef PROLOGIO
 238 void wxDrawnShape::WriteAttributes(wxExpr *clause)
 239 {
 240   wxRectangleShape::WriteAttributes(clause);
 241
 242   clause->AddAttributeValue("current_angle", (long)m_currentAngle);
 243   clause->AddAttributeValue("save_metafile", (long)m_saveToFile);
 244   if (m_saveToFile)
 245   {
 246     int i = 0;
 247     for (i = 0; i < 4; i++)
 248     {
 249         if (m_metafiles[i].IsValid())
 250             m_metafiles[i].WriteAttributes(clause, i);
 251     }
 252   }
 253 }
 254
 255 void wxDrawnShape::ReadAttributes(wxExpr *clause)
 256 {
 257   wxRectangleShape::ReadAttributes(clause);
 258
 259   int iVal = (int) m_saveToFile;
 260   clause->GetAttributeValue("save_metafile", iVal);
 261   clause->GetAttributeValue("current_angle", m_currentAngle);
 262   m_saveToFile = (iVal != 0);
 263
 264   if (m_saveToFile)
 265   {
 266     int i = 0;
 267     for (i = 0; i < 4; i++)
 268     {
 269       m_metafiles[i].ReadAttributes(clause, i);
 270     }
 271   }
 272 }
 273 #endif
 274
 275 // Does the copying for this object
 276 void wxDrawnShape::Copy(wxShape& copy)
 277 {
 278   wxRectangleShape::Copy(copy);
 279
 280   wxASSERT( copy.IsKindOf(CLASSINFO(wxDrawnShape)) ) ;
 281
 282   wxDrawnShape& drawnCopy = (wxDrawnShape&) copy;
 283
 284   int i = 0;
 285   for (i = 0; i < 4; i++)
 286   {
 287     m_metafiles[i].Copy(drawnCopy.m_metafiles[i]);
 288   }
 289   drawnCopy.m_saveToFile = m_saveToFile;
 290   drawnCopy.m_currentAngle = m_currentAngle;
 291 }
 292
 293 bool wxDrawnShape::LoadFromMetaFile(char *filename)
 294 {
 295   return m_metafiles[0].LoadFromMetaFile(filename, &m_width, &m_height);
 296 }
 297
 298 // Set of functions for drawing into a pseudo metafile.
 299 // They use integers, but doubles are used internally for accuracy
 300 // when scaling.
 301
 302 void wxDrawnShape::DrawLine(const wxPoint& pt1, const wxPoint& pt2)
 303 {
 304     m_metafiles[m_currentAngle].DrawLine(pt1, pt2);
 305 }
 306
 307 void wxDrawnShape::DrawRectangle(const wxRect& rect)
 308 {
 309     m_metafiles[m_currentAngle].DrawRectangle(rect);
 310 }
 311
 312 void wxDrawnShape::DrawRoundedRectangle(const wxRect& rect, double radius)
 313 {
 314     m_metafiles[m_currentAngle].DrawRoundedRectangle(rect, radius);
 315 }
 316
 317 void wxDrawnShape::DrawEllipse(const wxRect& rect)
 318 {
 319     m_metafiles[m_currentAngle].DrawEllipse(rect);
 320 }
 321
 322 void wxDrawnShape::DrawArc(const wxPoint& centrePt, const wxPoint& startPt, const wxPoint& endPt)
 323 {
 324     m_metafiles[m_currentAngle].DrawArc(centrePt, startPt, endPt);
 325 }
 326
 327 void wxDrawnShape::DrawEllipticArc(const wxRect& rect, double startAngle, double endAngle)
 328 {
 329     m_metafiles[m_currentAngle].DrawEllipticArc(rect, startAngle, endAngle);
 330 }
 331
 332 void wxDrawnShape::DrawPoint(const wxPoint& pt)
 333 {
 334     m_metafiles[m_currentAngle].DrawPoint(pt);
 335 }
 336
 337 void wxDrawnShape::DrawText(const wxString& text, const wxPoint& pt)
 338 {
 339     m_metafiles[m_currentAngle].DrawText(text, pt);
 340 }
 341
 342 void wxDrawnShape::DrawLines(int n, wxPoint pts[])
 343 {
 344     m_metafiles[m_currentAngle].DrawLines(n, pts);
 345 }
 346
 347 void wxDrawnShape::DrawPolygon(int n, wxPoint pts[], int flags)
 348 {
 349     if (flags & oglMETAFLAGS_ATTACHMENTS)
 350     {
 351         ClearAttachments();
 352         int i;
 353         for (i = 0; i < n; i++)
 354             m_attachmentPoints.Append(new wxAttachmentPoint(i, pts[i].x, pts[i].y));
 355     }
 356     m_metafiles[m_currentAngle].DrawPolygon(n, pts, flags);
 357 }
 358
 359 void wxDrawnShape::DrawSpline(int n, wxPoint pts[])
 360 {
 361     m_metafiles[m_currentAngle].DrawSpline(n, pts);
 362 }
 363
 364 void wxDrawnShape::SetClippingRect(const wxRect& rect)
 365 {
 366     m_metafiles[m_currentAngle].SetClippingRect(rect);
 367 }
 368
 369 void wxDrawnShape::DestroyClippingRect()
 370 {
 371     m_metafiles[m_currentAngle].DestroyClippingRect();
 372 }
 373
 374 void wxDrawnShape::SetDrawnPen(wxPen* pen, bool isOutline)
 375 {
 376     m_metafiles[m_currentAngle].SetPen(pen, isOutline);
 377 }
 378
 379 void wxDrawnShape::SetDrawnBrush(wxBrush* brush, bool isFill)
 380 {
 381     m_metafiles[m_currentAngle].SetBrush(brush, isFill);
 382 }
 383
 384 void wxDrawnShape::SetDrawnFont(wxFont* font)
 385 {
 386     m_metafiles[m_currentAngle].SetFont(font);
 387 }
 388
 389 void wxDrawnShape::SetDrawnTextColour(const wxColour& colour)
 390 {
 391     m_metafiles[m_currentAngle].SetTextColour(colour);
 392 }
 393
 394 void wxDrawnShape::SetDrawnBackgroundColour(const wxColour& colour)
 395 {
 396     m_metafiles[m_currentAngle].SetBackgroundColour(colour);
 397 }
 398
 399 void wxDrawnShape::SetDrawnBackgroundMode(int mode)
 400 {
 401     m_metafiles[m_currentAngle].SetBackgroundMode(mode);
 402 }
 403
 404
 405 /*
 406  * Individual operations
 407  *
 408  */
 409
 410 /*
 411  * Set font, brush, text colour
 412  *
 413  */
 414
 415 wxOpSetGDI::wxOpSetGDI(int theOp, wxPseudoMetaFile *theImage, int theGdiIndex, int theMode):
 416   wxDrawOp(theOp)
 417 {
 418   m_gdiIndex = theGdiIndex;
 419   m_image = theImage;
 420   m_mode = theMode;
 421 }
 422
 423 void wxOpSetGDI::Do(wxDC& dc, double xoffset, double yoffset)
 424 {
 425   switch (m_op)
 426   {
 427     case DRAWOP_SET_PEN:
 428     {
 429       // Check for overriding this operation for outline
 430       // colour
 431       if (m_image->m_outlineColours.Member((wxObject *)m_gdiIndex))
 432       {
 433         if (m_image->m_outlinePen)
 434           dc.SetPen(* m_image->m_outlinePen);
 435       }
 436       else
 437       {
 438         wxNode *node = m_image->m_gdiObjects.Nth(m_gdiIndex);
 439         if (node)
 440         {
 441           wxPen *pen = (wxPen *)node->Data();
 442           if (pen)
 443             dc.SetPen(* pen);
 444         }
 445       }
 446       break;
 447     }
 448     case DRAWOP_SET_BRUSH:
 449     {
 450       // Check for overriding this operation for outline or fill
 451       // colour
 452       if (m_image->m_outlineColours.Member((wxObject *)m_gdiIndex))
 453       {
 454         // Need to construct a brush to match the outline pen's colour
 455         if (m_image->m_outlinePen)
 456         {
 457           wxBrush *br = wxTheBrushList->FindOrCreateBrush(m_image->m_outlinePen->GetColour(), wxSOLID);
 458           if (br)
 459             dc.SetBrush(* br);
 460         }
 461       }
 462       else if (m_image->m_fillColours.Member((wxObject *)m_gdiIndex))
 463       {
 464         if (m_image->m_fillBrush)
 465         {
 466           dc.SetBrush(* m_image->m_fillBrush);
 467         }
 468       }
 469       else
 470       {
 471         wxNode *node = m_image->m_gdiObjects.Nth(m_gdiIndex);
 472         if (node)
 473         {
 474           wxBrush *brush = (wxBrush *)node->Data();
 475           if (brush)
 476             dc.SetBrush(* brush);
 477         }
 478       }
 479       break;
 480     }
 481     case DRAWOP_SET_FONT:
 482     {
 483       wxNode *node = m_image->m_gdiObjects.Nth(m_gdiIndex);
 484       if (node)
 485       {
 486         wxFont *font = (wxFont *)node->Data();
 487         if (font)
 488           dc.SetFont(* font);
 489       }
 490       break;
 491     }
 492     case DRAWOP_SET_TEXT_COLOUR:
 493     {
 494       wxColour col(m_r,m_g,m_b);
 495       dc.SetTextForeground(col);
 496       break;
 497     }
 498     case DRAWOP_SET_BK_COLOUR:
 499     {
 500       wxColour col(m_r,m_g,m_b);
 501       dc.SetTextBackground(col);
 502       break;
 503     }
 504     case DRAWOP_SET_BK_MODE:
 505     {
 506       dc.SetBackgroundMode(m_mode);
 507       break;
 508     }
 509     default:
 510       break;
 511   }
 512 }
 513
 514 wxDrawOp *wxOpSetGDI::Copy(wxPseudoMetaFile *newImage)
 515 {
 516   wxOpSetGDI *newOp = new wxOpSetGDI(m_op, newImage, m_gdiIndex, m_mode);
 517   newOp->m_r = m_r;
 518   newOp->m_g = m_g;
 519   newOp->m_b = m_b;
 520   return newOp;
 521 }
 522
 523 wxExpr *wxOpSetGDI::WriteExpr(wxPseudoMetaFile *image)
 524 {
 525   wxExpr *expr = new wxExpr(wxExprList);
 526   expr->Append(new wxExpr((long)m_op));
 527   switch (m_op)
 528   {
 529     case DRAWOP_SET_PEN:
 530     case DRAWOP_SET_BRUSH:
 531     case DRAWOP_SET_FONT:
 532     {
 533       expr->Append(new wxExpr((long)m_gdiIndex));
 534       break;
 535     }
 536     case DRAWOP_SET_TEXT_COLOUR:
 537     case DRAWOP_SET_BK_COLOUR:
 538     {
 539       expr->Append(new wxExpr((long)m_r));
 540       expr->Append(new wxExpr((long)m_g));
 541       expr->Append(new wxExpr((long)m_b));
 542       break;
 543     }
 544     case DRAWOP_SET_BK_MODE:
 545     {
 546       expr->Append(new wxExpr((long)m_mode));
 547       break;
 548     }
 549     default:
 550       break;
 551   }
 552   return expr;
 553 }
 554
 555 void wxOpSetGDI::ReadExpr(wxPseudoMetaFile *image, wxExpr *expr)
 556 {
 557   switch (m_op)
 558   {
 559     case DRAWOP_SET_PEN:
 560     case DRAWOP_SET_BRUSH:
 561     case DRAWOP_SET_FONT:
 562     {
 563       m_gdiIndex = (int)expr->Nth(1)->IntegerValue();
 564       break;
 565     }
 566     case DRAWOP_SET_TEXT_COLOUR:
 567     case DRAWOP_SET_BK_COLOUR:
 568     {
 569       m_r = (unsigned char)expr->Nth(1)->IntegerValue();
 570       m_g = (unsigned char)expr->Nth(2)->IntegerValue();
 571       m_b = (unsigned char)expr->Nth(3)->IntegerValue();
 572       break;
 573     }
 574     case DRAWOP_SET_BK_MODE:
 575     {
 576       m_mode = (int)expr->Nth(1)->IntegerValue();
 577       break;
 578     }
 579     default:
 580       break;
 581   }
 582 }
 583
 584 /*
 585  * Set/destroy clipping
 586  *
 587  */
 588
 589 wxOpSetClipping::wxOpSetClipping(int theOp, double theX1, double theY1,
 590     double theX2, double theY2):wxDrawOp(theOp)
 591 {
 592   m_x1 = theX1;
 593   m_y1 = theY1;
 594   m_x2 = theX2;
 595   m_y2 = theY2;
 596 }
 597
 598 wxDrawOp *wxOpSetClipping::Copy(wxPseudoMetaFile *newImage)
 599 {
 600   wxOpSetClipping *newOp = new wxOpSetClipping(m_op, m_x1, m_y1, m_x2, m_y2);
 601   return newOp;
 602 }
 603
 604 void wxOpSetClipping::Do(wxDC& dc, double xoffset, double yoffset)
 605 {
 606   switch (m_op)
 607   {
 608     case DRAWOP_SET_CLIPPING_RECT:
 609     {
 610       dc.SetClippingRegion((long)(m_x1 + xoffset), (long)(m_y1 + yoffset), (long)(m_x2 + xoffset), (long)(m_y2 + yoffset));
 611       break;
 612     }
 613     case DRAWOP_DESTROY_CLIPPING_RECT:
 614     {
 615       dc.DestroyClippingRegion();
 616       break;
 617     }
 618     default:
 619       break;
 620   }
 621 }
 622
 623 void wxOpSetClipping::Scale(double xScale, double yScale)
 624 {
 625   m_x1 *= xScale;
 626   m_y1 *= yScale;
 627   m_x2 *= xScale;
 628   m_y2 *= yScale;
 629 }
 630
 631 void wxOpSetClipping::Translate(double x, double y)
 632 {
 633   m_x1 += x;
 634   m_y1 += y;
 635 }
 636
 637 wxExpr *wxOpSetClipping::WriteExpr(wxPseudoMetaFile *image)
 638 {
 639   wxExpr *expr = new wxExpr(wxExprList);
 640   expr->Append(new wxExpr((long)m_op));
 641   switch (m_op)
 642   {
 643     case DRAWOP_SET_CLIPPING_RECT:
 644     {
 645       expr->Append(new wxExpr(m_x1));
 646       expr->Append(new wxExpr(m_y1));
 647       expr->Append(new wxExpr(m_x2));
 648       expr->Append(new wxExpr(m_y2));
 649       break;
 650     }
 651     default:
 652       break;
 653   }
 654   return expr;
 655 }
 656
 657 void wxOpSetClipping::ReadExpr(wxPseudoMetaFile *image, wxExpr *expr)
 658 {
 659   switch (m_op)
 660   {
 661     case DRAWOP_SET_CLIPPING_RECT:
 662     {
 663       m_x1 = expr->Nth(1)->RealValue();
 664       m_y1 = expr->Nth(2)->RealValue();
 665       m_x2 = expr->Nth(3)->RealValue();
 666       m_y2 = expr->Nth(4)->RealValue();
 667       break;
 668     }
 669     default:
 670       break;
 671   }
 672 }
 673
 674 /*
 675  * Draw line, rectangle, rounded rectangle, ellipse, point, arc, text
 676  *
 677  */
 678
 679 wxOpDraw::wxOpDraw(int theOp, double theX1, double theY1, double theX2, double theY2,
 680          double theRadius, char *s):wxDrawOp(theOp)
 681 {
 682   m_x1 = theX1;
 683   m_y1 = theY1;
 684   m_x2 = theX2;
 685   m_y2 = theY2;
 686   m_x3 = 0.0;
 687   m_y3 = 0.0;
 688   m_radius = theRadius;
 689   if (s) m_textString = copystring(s);
 690   else m_textString = NULL;
 691 }
 692
 693 wxOpDraw::~wxOpDraw()
 694 {
 695   if (m_textString) delete[] m_textString;
 696 }
 697
 698 wxDrawOp *wxOpDraw::Copy(wxPseudoMetaFile *newImage)
 699 {
 700   wxOpDraw *newOp = new wxOpDraw(m_op, m_x1, m_y1, m_x2, m_y2, m_radius, m_textString);
 701   newOp->m_x3 = m_x3;
 702   newOp->m_y3 = m_y3;
 703   return newOp;
 704 }
 705
 706 void wxOpDraw::Do(wxDC& dc, double xoffset, double yoffset)
 707 {
 708   switch (m_op)
 709   {
 710     case DRAWOP_DRAW_LINE:
 711     {
 712       dc.DrawLine(WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset), WXROUND(m_x2+xoffset), WXROUND(m_y2+yoffset));
 713       break;
 714     }
 715     case DRAWOP_DRAW_RECT:
 716     {
 717       dc.DrawRectangle(WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset), WXROUND(m_x2), WXROUND(m_y2));
 718       break;
 719     }
 720     case DRAWOP_DRAW_ROUNDED_RECT:
 721     {
 722       dc.DrawRoundedRectangle(WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset), WXROUND(m_x2), WXROUND(m_y2), m_radius);
 723       break;
 724     }
 725     case DRAWOP_DRAW_ELLIPSE:
 726     {
 727       dc.DrawEllipse(WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset), WXROUND(m_x2), WXROUND(m_y2));
 728       break;
 729     }
 730     case DRAWOP_DRAW_ARC:
 731     {
 732       dc.DrawArc(WXROUND(m_x2+xoffset), WXROUND(m_y2+yoffset),
 733                  WXROUND(m_x3+xoffset), WXROUND(m_y3+yoffset),
 734                  WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset));
 735       break;
 736     }
 737     case DRAWOP_DRAW_ELLIPTIC_ARC:
 738     {
 739       const double pi = 3.1415926535897932384626433832795 ;
 740
 741       // Convert back to degrees
 742       dc.DrawEllipticArc(
 743                  WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset),
 744                  WXROUND(m_x2), WXROUND(m_y2),
 745                  WXROUND(m_x3*(360.0/(2.0*pi))), WXROUND(m_y3*(360.0/(2.0*pi))));
 746       break;
 747     }
 748     case DRAWOP_DRAW_POINT:
 749     {
 750       dc.DrawPoint(WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset));
 751       break;
 752     }
 753     case DRAWOP_DRAW_TEXT:
 754     {
 755       dc.DrawText(m_textString, WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset));
 756       break;
 757     }
 758     default:
 759       break;
 760   }
 761 }
 762
 763 void wxOpDraw::Scale(double scaleX, double scaleY)
 764 {
 765   m_x1 *= scaleX;
 766   m_y1 *= scaleY;
 767   m_x2 *= scaleX;
 768   m_y2 *= scaleY;
 769
 770   if (m_op != DRAWOP_DRAW_ELLIPTIC_ARC)
 771   {
 772     m_x3 *= scaleX;
 773     m_y3 *= scaleY;
 774   }
 775
 776   m_radius *= scaleX;
 777 }
 778
 779 void wxOpDraw::Translate(double x, double y)
 780 {
 781   m_x1 += x;
 782   m_y1 += y;
 783
 784   switch (m_op)
 785   {
 786     case DRAWOP_DRAW_LINE:
 787     {
 788       m_x2 += x;
 789       m_y2 += y;
 790       break;
 791     }
 792     case DRAWOP_DRAW_ARC:
 793     {
 794       m_x2 += x;
 795       m_y2 += y;
 796       m_x3 += x;
 797       m_y3 += y;
 798       break;
 799     }
 800     case DRAWOP_DRAW_ELLIPTIC_ARC:
 801     {
 802       break;
 803     }
 804     default:
 805       break;
 806   }
 807 }
 808
 809 void wxOpDraw::Rotate(double x, double y, double theta, double sinTheta, double cosTheta)
 810 {
 811   double newX1 = m_x1*cosTheta - m_y1*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 812   double newY1 = m_x1*sinTheta + m_y1*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 813
 814   switch (m_op)
 815   {
 816     case DRAWOP_DRAW_LINE:
 817     {
 818       double newX2 = m_x2*cosTheta - m_y2*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 819       double newY2 = m_x2*sinTheta + m_y2*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 820
 821           m_x1 = newX1;
 822           m_y1 = newY1;
 823           m_x2 = newX2;
 824           m_y2 = newY2;
 825       break;
 826     }
 827     case DRAWOP_DRAW_RECT:
 828     case DRAWOP_DRAW_ROUNDED_RECT:
 829     case DRAWOP_DRAW_ELLIPTIC_ARC:
 830     {
 831       // Assume only 0, 90, 180, 270 degree rotations.
 832       // oldX1, oldY1 represents the top left corner. Find the
 833       // bottom right, and rotate that. Then the width/height is the difference
 834       // between x/y values.
 835       double oldBottomRightX = m_x1 + m_x2;
 836       double oldBottomRightY = m_y1 + m_y2;
 837       double newBottomRightX = oldBottomRightX*cosTheta - oldBottomRightY*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 838       double newBottomRightY = oldBottomRightX*sinTheta + oldBottomRightY*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 839
 840       // Now find the new top-left, bottom-right coordinates.
 841       double minX = wxMin(newX1, newBottomRightX);
 842       double minY = wxMin(newY1, newBottomRightY);
 843       double maxX = wxMax(newX1, newBottomRightX);
 844       double maxY = wxMax(newY1, newBottomRightY);
 845
 846       m_x1 = minX;
 847       m_y1 = minY;
 848       m_x2 = maxX - minX; // width
 849       m_y2 = maxY - minY; // height
 850
 851       if (m_op == DRAWOP_DRAW_ELLIPTIC_ARC)
 852       {
 853         // Add rotation to angles
 854         m_x3 += theta;
 855         m_y3 += theta;
 856       }
 857
 858       break;
 859     }
 860     case DRAWOP_DRAW_ARC:
 861     {
 862       double newX2 = m_x2*cosTheta - m_y2*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 863       double newY2 = m_x2*sinTheta + m_y2*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 864       double newX3 = m_x3*cosTheta - m_y3*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 865       double newY3 = m_x3*sinTheta + m_y3*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 866
 867           m_x1 = newX1;
 868           m_y1 = newY1;
 869           m_x2 = newX2;
 870           m_y2 = newY2;
 871           m_x3 = newX3;
 872           m_y3 = newY3;
 873
 874       break;
 875     }
 876     default:
 877       break;
 878   }
 879 }
 880
 881 wxExpr *wxOpDraw::WriteExpr(wxPseudoMetaFile *image)
 882 {
 883   wxExpr *expr = new wxExpr(wxExprList);
 884   expr->Append(new wxExpr((long)m_op));
 885   switch (m_op)
 886   {
 887     case DRAWOP_DRAW_LINE:
 888     case DRAWOP_DRAW_RECT:
 889     case DRAWOP_DRAW_ELLIPSE:
 890     {
 891       expr->Append(new wxExpr(m_x1));
 892       expr->Append(new wxExpr(m_y1));
 893       expr->Append(new wxExpr(m_x2));
 894       expr->Append(new wxExpr(m_y2));
 895       break;
 896     }
 897     case DRAWOP_DRAW_ROUNDED_RECT:
 898     {
 899       expr->Append(new wxExpr(m_x1));
 900       expr->Append(new wxExpr(m_y1));
 901       expr->Append(new wxExpr(m_x2));
 902       expr->Append(new wxExpr(m_y2));
 903       expr->Append(new wxExpr(m_radius));
 904       break;
 905     }
 906     case DRAWOP_DRAW_POINT:
 907     {
 908       expr->Append(new wxExpr(m_x1));
 909       expr->Append(new wxExpr(m_y1));
 910       break;
 911     }
 912     case DRAWOP_DRAW_TEXT:
 913     {
 914       expr->Append(new wxExpr(m_x1));
 915       expr->Append(new wxExpr(m_y1));
 916       expr->Append(new wxExpr(wxExprString, m_textString));
 917       break;
 918     }
 919     case DRAWOP_DRAW_ARC:
 920     case DRAWOP_DRAW_ELLIPTIC_ARC:
 921     {
 922       expr->Append(new wxExpr(m_x1));
 923       expr->Append(new wxExpr(m_y1));
 924       expr->Append(new wxExpr(m_x2));
 925       expr->Append(new wxExpr(m_y2));
 926       expr->Append(new wxExpr(m_x3));
 927       expr->Append(new wxExpr(m_y3));
 928       break;
 929     }
 930     default:
 931     {
 932       break;
 933     }
 934   }
 935   return expr;
 936 }
 937
 938 void wxOpDraw::ReadExpr(wxPseudoMetaFile *image, wxExpr *expr)
 939 {
 940   switch (m_op)
 941   {
 942     case DRAWOP_DRAW_LINE:
 943     case DRAWOP_DRAW_RECT:
 944     case DRAWOP_DRAW_ELLIPSE:
 945     {
 946       m_x1 = expr->Nth(1)->RealValue();
 947       m_y1 = expr->Nth(2)->RealValue();
 948       m_x2 = expr->Nth(3)->RealValue();
 949       m_y2 = expr->Nth(4)->RealValue();
 950       break;
 951     }
 952     case DRAWOP_DRAW_ROUNDED_RECT:
 953     {
 954       m_x1 = expr->Nth(1)->RealValue();
 955       m_y1 = expr->Nth(2)->RealValue();
 956       m_x2 = expr->Nth(3)->RealValue();
 957       m_y2 = expr->Nth(4)->RealValue();
 958       m_radius = expr->Nth(5)->RealValue();
 959       break;
 960     }
 961     case DRAWOP_DRAW_POINT:
 962     {
 963       m_x1 = expr->Nth(1)->RealValue();
 964       m_y1 = expr->Nth(2)->RealValue();
 965       break;
 966     }
 967     case DRAWOP_DRAW_TEXT:
 968     {
 969       m_x1 = expr->Nth(1)->RealValue();
 970       m_y1 = expr->Nth(2)->RealValue();
 971       wxString str(expr->Nth(3)->StringValue());
 972       m_textString = copystring((const char*) str);
 973       break;
 974     }
 975     case DRAWOP_DRAW_ARC:
 976     case DRAWOP_DRAW_ELLIPTIC_ARC:
 977     {
 978       m_x1 = expr->Nth(1)->RealValue();
 979       m_y1 = expr->Nth(2)->RealValue();
 980       m_x2 = expr->Nth(3)->RealValue();
 981       m_y2 = expr->Nth(4)->RealValue();
 982       m_x3 = expr->Nth(5)->RealValue();
 983       m_y3 = expr->Nth(6)->RealValue();
 984       break;
 985     }
 986     default:
 987     {
 988       break;
 989     }
 990   }
 991 }
 992
 993 /*
 994  * Draw polygon, polyline, spline
 995  *
 996  */
 997
 998 wxOpPolyDraw::wxOpPolyDraw(int theOp, int n, wxRealPoint *thePoints):wxDrawOp(theOp)
 999 {
1000   m_noPoints = n;
1001   m_points = thePoints;
1002 }
1003
1004 wxOpPolyDraw::~wxOpPolyDraw()
1005 {
1006   delete[] m_points;
1007 }
1008
1009 wxDrawOp *wxOpPolyDraw::Copy(wxPseudoMetaFile *newImage)
1010 {
1011   wxRealPoint *newPoints = new wxRealPoint[m_noPoints];
1012   for (int i = 0; i < m_noPoints; i++)
1013   {
1014     newPoints[i].x = m_points[i].x;
1015     newPoints[i].y = m_points[i].y;
1016   }
1017   wxOpPolyDraw *newOp = new wxOpPolyDraw(m_op, m_noPoints, newPoints);
1018   return newOp;
1019 }
1020
1021 void wxOpPolyDraw::Do(wxDC& dc, double xoffset, double yoffset)
1022 {
1023   switch (m_op)
1024   {
1025     case DRAWOP_DRAW_POLYLINE:
1026     {
1027         wxPoint *actualPoints = new wxPoint[m_noPoints];
1028         int i;
1029         for (i = 0; i < m_noPoints; i++)
1030         {
1031             actualPoints[i].x = WXROUND(m_points[i].x);
1032             actualPoints[i].y = WXROUND(m_points[i].y);
1033         }
1034
1035         dc.DrawLines(m_noPoints, actualPoints, WXROUND(xoffset), WXROUND(yoffset));
1036
1037         delete[] actualPoints;
1038         break;
1039     }
1040     case DRAWOP_DRAW_POLYGON:
1041     {
1042         wxPoint *actualPoints = new wxPoint[m_noPoints];
1043         int i;
1044         for (i = 0; i < m_noPoints; i++)
1045         {
1046             actualPoints[i].x = WXROUND(m_points[i].x);
1047             actualPoints[i].y = WXROUND(m_points[i].y);
1048         }
1049
1050         dc.DrawPolygon(m_noPoints, actualPoints, WXROUND(xoffset), WXROUND(yoffset));
1051
1052         delete[] actualPoints;
1053         break;
1054     }
1055     case DRAWOP_DRAW_SPLINE:
1056     {
1057         wxPoint *actualPoints = new wxPoint[m_noPoints];
1058         int i;
1059         for (i = 0; i < m_noPoints; i++)
1060         {
1061             actualPoints[i].x = WXROUND(m_points[i].x);
1062             actualPoints[i].y = WXROUND(m_points[i].y);
1063         }
1064
1065         dc.DrawSpline(m_noPoints, actualPoints); // no offsets in DrawSpline // , xoffset, yoffset);
1066
1067         delete[] actualPoints;
1068         break;
1069       break;
1070     }
1071     default:
1072       break;
1073   }
1074 }
1075
1076 void wxOpPolyDraw::Scale(double scaleX, double scaleY)
1077 {
1078   for (int i = 0; i < m_noPoints; i++)
1079   {
1080     m_points[i].x *= scaleX;
1081     m_points[i].y *= scaleY;
1082   }
1083 }
1084
1085 void wxOpPolyDraw::Translate(double x, double y)
1086 {
1087   for (int i = 0; i < m_noPoints; i++)
1088   {
1089     m_points[i].x += x;
1090     m_points[i].y += y;
1091   }
1092 }
1093
1094 void wxOpPolyDraw::Rotate(double x, double y, double theta, double sinTheta, double cosTheta)
1095 {
1096   for (int i = 0; i < m_noPoints; i++)
1097   {
1098     double x1 = m_points[i].x;
1099     double y1 = m_points[i].y;
1100     m_points[i].x = x1*cosTheta - y1*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
1101     m_points[i].y = x1*sinTheta + y1*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
1102   }
1103 }
1104
1105 wxExpr *wxOpPolyDraw::WriteExpr(wxPseudoMetaFile *image)
1106 {
1107   wxExpr *expr = new wxExpr(wxExprList);
1108   expr->Append(new wxExpr((long)m_op));
1109   expr->Append(new wxExpr((long)m_noPoints));
1110
1111 //  char buf1[9];
1112   char buf2[5];
1113   char buf3[5];
1114
1115   oglBuffer[0] = 0;
1116
1117   /*
1118    * Store each coordinate pair in a hex string to save space.
1119    * E.g. "1B9080CD". 4 hex digits per coordinate pair.
1120    *
1121    */
1122
1123   for (int i = 0; i < m_noPoints; i++)
1124   {
1125     long signedX = (long)(m_points[i].x*100.0);
1126     long signedY = (long)(m_points[i].y*100.0);
1127
1128     // Scale to 0 -> 64K
1129     long unSignedX = (long)(signedX + 32767.0);
1130     long unSignedY = (long)(signedY + 32767.0);
1131
1132 //    IntToHex((unsigned int)signedX, buf2);
1133 //    IntToHex((unsigned int)signedY, buf3);
1134     IntToHex((int)unSignedX, buf2);
1135     IntToHex((int)unSignedY, buf3);
1136
1137     // Don't overrun the buffer
1138     if ((i*8) < 3000)
1139     {
1140       strcat(oglBuffer, buf2);
1141       strcat(oglBuffer, buf3);
1142     }
1143   }
1144   expr->Append(new wxExpr(wxExprString, oglBuffer));
1145   return expr;
1146 }
1147
1148 void wxOpPolyDraw::ReadExpr(wxPseudoMetaFile *image, wxExpr *expr)
1149 {
1150   m_noPoints = (int)expr->Nth(1)->IntegerValue();
1151
1152   char buf1[5];
1153   char buf2[5];
1154
1155   m_points = new wxRealPoint[m_noPoints];
1156   int i = 0;
1157   int bufPtr = 0;
1158   wxString hexString = expr->Nth(2)->StringValue();
1159   while (i < m_noPoints)
1160   {
1161     buf1[0] = hexString[(size_t)bufPtr];
1162     buf1[1] = hexString[(size_t)(bufPtr + 1)];
1163     buf1[2] = hexString[(size_t)(bufPtr + 2)];
1164     buf1[3] = hexString[(size_t)(bufPtr + 3)];
1165     buf1[4] = 0;
1166
1167     buf2[0] = hexString[(size_t)(bufPtr + 4)];
1168     buf2[1] = hexString[(size_t)(bufPtr + 5)];
1169     buf2[2] = hexString[(size_t)(bufPtr + 6)];
1170     buf2[3] = hexString[(size_t)(bufPtr + 7)];
1171     buf2[4] = 0;
1172
1173     bufPtr += 8;
1174
1175 //    int signedX = (signed int)HexToInt(buf1);
1176 //    int signedY = (signed int)HexToInt(buf2);
1177     long unSignedX = HexToInt(buf1);
1178     long unSignedY = HexToInt(buf2);
1179     // Scale -32K -> +32K
1180     long signedX = unSignedX - 32767;
1181     long signedY = unSignedY - 32767;
1182 #ifdef __WXMSW__
1183     int testX = (signed int)unSignedX;
1184     int testY = (signed int)unSignedY;
1185 #endif
1186
1187     m_points[i].x = (double)(signedX / 100.0);
1188     m_points[i].y = (double)(signedY / 100.0);
1189
1190     i ++;
1191   }
1192 }
1193
1194 // Draw an outline using the current operation.
1195 bool wxOpPolyDraw::OnDrawOutline(wxDC& dc, double x, double y, double w, double h, double oldW, double oldH)
1196 {
1197     dc.SetBrush(* wxTRANSPARENT_BRUSH);
1198
1199     // Multiply all points by proportion of new size to old size
1200     double x_proportion = (double)(fabs(w/oldW));
1201     double y_proportion = (double)(fabs(h/oldH));
1202
1203     int n = m_noPoints;
1204     wxPoint *intPoints = new wxPoint[n];
1205     int i;
1206     for (i = 0; i < n; i++)
1207     {
1208         intPoints[i].x = WXROUND (x_proportion * m_points[i].x);
1209         intPoints[i].y = WXROUND (y_proportion * m_points[i].y);
1210     }
1211     dc.DrawPolygon(n, intPoints, (long) x, (long) y);
1212     delete[] intPoints;
1213     return TRUE;
1214 }
1215
1216 // Assume (x1, y1) is centre of box (most generally, line end at box)
1217 bool wxOpPolyDraw::GetPerimeterPoint(double x1, double y1,
1218                                      double x2, double y2,
1219                                      double *x3, double *y3,
1220                                      double xOffset, double yOffset,
1221                                      int attachmentMode)
1222 {
1223   int n = m_noPoints;
1224
1225   // First check for situation where the line is vertical,
1226   // and we would want to connect to a point on that vertical --
1227   // oglFindEndForPolyline can't cope with this (the arrow
1228   // gets drawn to the wrong place).
1229   if ((attachmentMode == ATTACHMENT_MODE_NONE) && (x1 == x2))
1230   {
1231     // Look for the point we'd be connecting to. This is
1232     // a heuristic...
1233     int i;
1234     for (i = 0; i < n; i++)
1235     {
1236       wxRealPoint *point = & (m_points[i]);
1237       if (point->x == 0.0)
1238       {
1239         if ((y2 > y1) && (point->y > 0.0))
1240         {
1241           *x3 = point->x + xOffset;
1242           *y3 = point->y + yOffset;
1243           return TRUE;
1244         }
1245         else if ((y2 < y1) && (point->y < 0.0))
1246         {
1247           *x3 = point->x + xOffset;
1248           *y3 = point->y + yOffset;
1249           return TRUE;
1250         }
1251       }
1252     }
1253   }
1254
1255   double *xpoints = new double[n];
1256   double *ypoints = new double[n];
1257
1258   int i = 0;
1259   for (i = 0; i < n; i++)
1260   {
1261     wxRealPoint *point = & (m_points[i]);
1262     xpoints[i] = point->x + xOffset;
1263     ypoints[i] = point->y + yOffset;
1264   }
1265
1266   oglFindEndForPolyline(n, xpoints, ypoints,
1267                         x1, y1, x2, y2, x3, y3);
1268
1269   delete[] xpoints;
1270   delete[] ypoints;
1271
1272   return TRUE;
1273 }
1274
1275
1276 /*
1277  * Utilities
1278  *
1279  */
1280
1281 static char hexArray[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B',
1282   'C', 'D', 'E', 'F' };
1283
1284 // Convert unsigned 16-bit integer to 4-character hex string
1285 static void IntToHex(unsigned int dec, char *buf)
1286 {
1287   int digit1 = (int)(dec/4096);
1288   int digit2 = (int)((dec - (digit1*4096))/256);
1289   int digit3 = (int)((dec - (digit1*4096) - (digit2*256))/16);
1290   int digit4 = dec - (digit1*4096 + digit2*256 + digit3*16);
1291
1292   buf[0] = hexArray[digit1];
1293   buf[1] = hexArray[digit2];
1294   buf[2] = hexArray[digit3];
1295   buf[3] = hexArray[digit4];
1296   buf[4] = 0;
1297 }
1298
1299 // One hex digit to decimal number
1300 static int HexToInt1(char hex)
1301 {
1302   switch (hex)
1303   {
1304     case '0':
1305       return 0;
1306     case '1':
1307       return 1;
1308     case '2':
1309       return 2;
1310     case '3':
1311       return 3;
1312     case '4':
1313       return 4;
1314     case '5':
1315       return 5;
1316     case '6':
1317       return 6;
1318     case '7':
1319       return 7;
1320     case '8':
1321       return 8;
1322     case '9':
1323       return 9;
1324     case 'A':
1325       return 10;
1326     case 'B':
1327       return 11;
1328     case 'C':
1329       return 12;
1330     case 'D':
1331       return 13;
1332     case 'E':
1333       return 14;
1334     case 'F':
1335       return 15;
1336     default:
1337       return 0;
1338   }
1339   return 0;
1340 }
1341
1342 // 4-digit hex string to unsigned integer
1343 static unsigned long HexToInt(char *buf)
1344 {
1345   long d1 = (long)(HexToInt1(buf[0])*4096.0) ;
1346   long d2 = (long)(HexToInt1(buf[1])*256.0) ;
1347   long d3 = (long)(HexToInt1(buf[2])*16.0) ;
1348   long d4 = (long)(HexToInt1(buf[3])) ;
1349   unsigned long n = (long)(d1 + d2 + d3 + d4) ;
1350   return n;
1351 }
1352
1353 /*
1354  * wxPseudo meta-file
1355  *
1356  */
1357
1358 IMPLEMENT_DYNAMIC_CLASS(wxPseudoMetaFile, wxObject)
1359
1360 wxPseudoMetaFile::wxPseudoMetaFile()
1361 {
1362   m_currentRotation = 0;
1363   m_rotateable = TRUE;
1364   m_width = 0.0;
1365   m_height = 0.0;
1366   m_outlinePen = NULL;
1367   m_fillBrush = NULL;
1368   m_outlineOp = -1;
1369 }
1370
1371 wxPseudoMetaFile::wxPseudoMetaFile(wxPseudoMetaFile& mf)
1372 {
1373   mf.Copy(*this);
1374 }
1375
1376 wxPseudoMetaFile::~wxPseudoMetaFile()
1377 {
1378   Clear();
1379 }
1380
1381 void wxPseudoMetaFile::Clear()
1382 {
1383   wxNode *node = m_ops.First();
1384   while (node)
1385   {
1386     wxDrawOp *op = (wxDrawOp *)node->Data();
1387     delete op;
1388     node = node->Next();
1389   }
1390   m_ops.Clear();
1391   m_gdiObjects.Clear();
1392   m_outlineColours.Clear();
1393   m_fillColours.Clear();
1394   m_outlineOp = -1;
1395 }
1396
1397 void wxPseudoMetaFile::Draw(wxDC& dc, double xoffset, double yoffset)
1398 {
1399   wxNode *node = m_ops.First();
1400   while (node)
1401   {
1402     wxDrawOp *op = (wxDrawOp *)node->Data();
1403     op->Do(dc, xoffset, yoffset);
1404     node = node->Next();
1405   }
1406 }
1407
1408 void wxPseudoMetaFile::Scale(double sx, double sy)
1409 {
1410   wxNode *node = m_ops.First();
1411   while (node)
1412   {
1413     wxDrawOp *op = (wxDrawOp *)node->Data();
1414     op->Scale(sx, sy);
1415     node = node->Next();
1416   }
1417   m_width *= sx;
1418   m_height *= sy;
1419 }
1420
1421 void wxPseudoMetaFile::Translate(double x, double y)
1422 {
1423   wxNode *node = m_ops.First();
1424   while (node)
1425   {
1426     wxDrawOp *op = (wxDrawOp *)node->Data();
1427     op->Translate(x, y);
1428     node = node->Next();
1429   }
1430 }
1431
1432 void wxPseudoMetaFile::Rotate(double x, double y, double theta)
1433 {
1434   double theta1 = theta-m_currentRotation;
1435   if (theta1 == 0.0) return;
1436   double cosTheta = (double)cos(theta1);
1437   double sinTheta = (double)sin(theta1);
1438
1439   wxNode *node = m_ops.First();
1440   while (node)
1441   {
1442     wxDrawOp *op = (wxDrawOp *)node->Data();
1443     op->Rotate(x, y, theta, sinTheta, cosTheta);
1444     node = node->Next();
1445   }
1446   m_currentRotation = theta;
1447 }
1448
1449 #ifdef PROLOGIO
1450 void wxPseudoMetaFile::WriteAttributes(wxExpr *clause, int whichAngle)
1451 {
1452   wxString widthStr;
1453   widthStr.Printf("meta_width%d", whichAngle);
1454
1455   wxString heightStr;
1456   heightStr.Printf("meta_height%d", whichAngle);
1457
1458   wxString outlineStr;
1459   outlineStr.Printf("outline_op%d", whichAngle);
1460
1461   wxString rotateableStr;
1462   rotateableStr.Printf("meta_rotateable%d", whichAngle);
1463
1464   // Write width and height
1465   clause->AddAttributeValue(widthStr, m_width);
1466   clause->AddAttributeValue(heightStr, m_height);
1467   clause->AddAttributeValue(rotateableStr, (long)m_rotateable);
1468   clause->AddAttributeValue(outlineStr, (long)m_outlineOp);
1469
1470   // Write GDI objects
1471   char buf[50];
1472   int i = 1;
1473   wxNode *node = m_gdiObjects.First();
1474   while (node)
1475   {
1476     sprintf(buf, "gdi%d_%d", whichAngle, i);
1477     wxObject *obj = (wxObject *)node->Data();
1478     wxExpr *expr = NULL;
1479     if (obj)
1480     {
1481       if (obj->IsKindOf(CLASSINFO(wxPen)))
1482       {
1483         wxPen *thePen = (wxPen *)obj;
1484         expr = new wxExpr(wxExprList);
1485         expr->Append(new wxExpr((long)gyTYPE_PEN));
1486         expr->Append(new wxExpr((long)thePen->GetWidth()));
1487         expr->Append(new wxExpr((long)thePen->GetStyle()));
1488         expr->Append(new wxExpr((long)thePen->GetColour().Red()));
1489         expr->Append(new wxExpr((long)thePen->GetColour().Green()));
1490         expr->Append(new wxExpr((long)thePen->GetColour().Blue()));
1491       }
1492       else if (obj->IsKindOf(CLASSINFO(wxBrush)))
1493       {
1494         wxBrush *theBrush = (wxBrush *)obj;
1495         expr = new wxExpr(wxExprList);
1496         expr->Append(new wxExpr((long)gyTYPE_BRUSH));
1497         expr->Append(new wxExpr((long)theBrush->GetStyle()));
1498         expr->Append(new wxExpr((long)theBrush->GetColour().Red()));
1499         expr->Append(new wxExpr((long)theBrush->GetColour().Green()));
1500         expr->Append(new wxExpr((long)theBrush->GetColour().Blue()));
1501       }
1502       else if (obj->IsKindOf(CLASSINFO(wxFont)))
1503       {
1504         wxFont *theFont = (wxFont *)obj;
1505         expr = new wxExpr(wxExprList);
1506         expr->Append(new wxExpr((long)gyTYPE_FONT));
1507         expr->Append(new wxExpr((long)theFont->GetPointSize()));
1508         expr->Append(new wxExpr((long)theFont->GetFamily()));
1509         expr->Append(new wxExpr((long)theFont->GetStyle()));
1510         expr->Append(new wxExpr((long)theFont->GetWeight()));
1511         expr->Append(new wxExpr((long)theFont->GetUnderlined()));
1512       }
1513     }
1514     else
1515     {
1516       // If no recognised GDI object, append a place holder anyway.
1517       expr = new wxExpr(wxExprList);
1518       expr->Append(new wxExpr((long)0));
1519     }
1520
1521     if (expr)
1522     {
1523       clause->AddAttributeValue(buf, expr);
1524       i ++;
1525     }
1526     node = node->Next();
1527   }
1528
1529   // Write drawing operations
1530   i = 1;
1531   node = m_ops.First();
1532   while (node)
1533   {
1534     sprintf(buf, "op%d_%d", whichAngle, i);
1535     wxDrawOp *op = (wxDrawOp *)node->Data();
1536     wxExpr *expr = op->WriteExpr(this);
1537     if (expr)
1538     {
1539       clause->AddAttributeValue(buf, expr);
1540       i ++;
1541     }
1542     node = node->Next();
1543   }
1544
1545   // Write outline and fill GDI op lists (if any)
1546   if (m_outlineColours.Number() > 0)
1547   {
1548     wxExpr *outlineExpr = new wxExpr(wxExprList);
1549     node = m_outlineColours.First();
1550     while (node)
1551     {
1552       outlineExpr->Append(new wxExpr((long)node->Data()));
1553       node = node->Next();
1554     }
1555     wxString outlineObjectsStr;
1556     outlineObjectsStr.Printf("outline_objects%d", whichAngle);
1557
1558     clause->AddAttributeValue(outlineObjectsStr, outlineExpr);
1559   }
1560   if (m_fillColours.Number() > 0)
1561   {
1562     wxExpr *fillExpr = new wxExpr(wxExprList);
1563     node = m_fillColours.First();
1564     while (node)
1565     {
1566       fillExpr->Append(new wxExpr((long)node->Data()));
1567       node = node->Next();
1568     }
1569     wxString fillObjectsStr;
1570     fillObjectsStr.Printf("fill_objects%d", whichAngle);
1571
1572     clause->AddAttributeValue(fillObjectsStr, fillExpr);
1573   }
1574
1575 }
1576
1577 void wxPseudoMetaFile::ReadAttributes(wxExpr *clause, int whichAngle)
1578 {
1579   wxString widthStr;
1580   widthStr.Printf("meta_width%d", whichAngle);
1581
1582   wxString heightStr;
1583   heightStr.Printf("meta_height%d", whichAngle);
1584
1585   wxString outlineStr;
1586   outlineStr.Printf("outline_op%d", whichAngle);
1587
1588   wxString rotateableStr;
1589   rotateableStr.Printf("meta_rotateable%d", whichAngle);
1590
1591   clause->GetAttributeValue(widthStr, m_width);
1592   clause->GetAttributeValue(heightStr, m_height);
1593   clause->GetAttributeValue(outlineStr, m_outlineOp);
1594
1595   int iVal = (int) m_rotateable;
1596   clause->GetAttributeValue(rotateableStr, iVal);
1597   m_rotateable = (iVal != 0);
1598
1599   // Read GDI objects
1600   char buf[50];
1601   int i = 1;
1602   bool keepGoing = TRUE;
1603   while (keepGoing)
1604   {
1605     sprintf(buf, "gdi%d_%d", whichAngle, i);
1606     wxExpr *expr = NULL;
1607     clause->GetAttributeValue(buf, &expr);
1608     if (!expr)
1609     {
1610       keepGoing = FALSE;
1611     }
1612     else
1613     {
1614       wxExpr *idExpr = expr->Nth(0);
1615       switch (idExpr->IntegerValue())
1616       {
1617         case gyTYPE_PEN:
1618         {
1619           int penWidth = (int)expr->Nth(1)->IntegerValue();
1620           int penStyle = (int)expr->Nth(2)->IntegerValue();
1621           int penRed = (int)expr->Nth(3)->IntegerValue();
1622           int penGreen = (int)expr->Nth(4)->IntegerValue();
1623           int penBlue = (int)expr->Nth(5)->IntegerValue();
1624           wxColour col(penRed, penGreen, penBlue);
1625           wxPen *p = wxThePenList->FindOrCreatePen(col, penWidth, penStyle);
1626           if (!p)
1627             p = wxBLACK_PEN;
1628           m_gdiObjects.Append(p);
1629           break;
1630         }
1631         case gyTYPE_BRUSH:
1632         {
1633           int brushStyle = (int)expr->Nth(1)->IntegerValue();
1634           int brushRed = (int)expr->Nth(2)->IntegerValue();
1635           int brushGreen = (int)expr->Nth(3)->IntegerValue();
1636           int brushBlue = (int)expr->Nth(4)->IntegerValue();
1637           wxColour col(brushRed, brushGreen, brushBlue);
1638           wxBrush *b = wxTheBrushList->FindOrCreateBrush(col, brushStyle);
1639           if (!b)
1640             b = wxWHITE_BRUSH;
1641           m_gdiObjects.Append(b);
1642           break;
1643         }
1644         case gyTYPE_FONT:
1645         {
1646           int fontPointSize = (int)expr->Nth(1)->IntegerValue();
1647           int fontFamily = (int)expr->Nth(2)->IntegerValue();
1648           int fontStyle = (int)expr->Nth(3)->IntegerValue();
1649           int fontWeight = (int)expr->Nth(4)->IntegerValue();
1650           int fontUnderlined = (int)expr->Nth(5)->IntegerValue();
1651           m_gdiObjects.Append(wxTheFontList->FindOrCreateFont(fontPointSize,
1652                            fontFamily, fontStyle, fontWeight, (fontUnderlined != 0)));
1653           break;
1654         }
1655         default:
1656         {
1657           // Place holder
1658           m_gdiObjects.Append(NULL);
1659           break;
1660         }
1661       }
1662       i ++;
1663     }
1664   }
1665
1666   // Now read in the operations
1667   keepGoing = TRUE;
1668   i = 1;
1669   while (keepGoing)
1670   {
1671     sprintf(buf, "op%d_%d", whichAngle, i);
1672     wxExpr *expr = NULL;
1673     clause->GetAttributeValue(buf, &expr);
1674     if (!expr)
1675     {
1676       keepGoing = FALSE;
1677     }
1678     else
1679     {
1680       wxExpr *idExpr = expr->Nth(0);
1681       int opId = (int)idExpr->IntegerValue();
1682       switch (opId)
1683       {
1684         case DRAWOP_SET_PEN:
1685         case DRAWOP_SET_BRUSH:
1686         case DRAWOP_SET_FONT:
1687         case DRAWOP_SET_TEXT_COLOUR:
1688         case DRAWOP_SET_BK_COLOUR:
1689         case DRAWOP_SET_BK_MODE:
1690         {
1691           wxOpSetGDI *theOp = new wxOpSetGDI(opId, this, 0);
1692           theOp->ReadExpr(this, expr);
1693           m_ops.Append(theOp);
1694           break;
1695         }
1696
1697         case DRAWOP_SET_CLIPPING_RECT:
1698         case DRAWOP_DESTROY_CLIPPING_RECT:
1699         {
1700           wxOpSetClipping *theOp = new wxOpSetClipping(opId, 0.0, 0.0, 0.0, 0.0);
1701           theOp->ReadExpr(this, expr);
1702           m_ops.Append(theOp);
1703           break;
1704         }
1705
1706         case DRAWOP_DRAW_LINE:
1707         case DRAWOP_DRAW_RECT:
1708         case DRAWOP_DRAW_ROUNDED_RECT:
1709         case DRAWOP_DRAW_ELLIPSE:
1710         case DRAWOP_DRAW_POINT:
1711         case DRAWOP_DRAW_ARC:
1712         case DRAWOP_DRAW_TEXT:
1713         {
1714           wxOpDraw *theOp = new wxOpDraw(opId, 0.0, 0.0, 0.0, 0.0);
1715           theOp->ReadExpr(this, expr);
1716           m_ops.Append(theOp);
1717           break;
1718         }
1719         case DRAWOP_DRAW_SPLINE:
1720         case DRAWOP_DRAW_POLYLINE:
1721         case DRAWOP_DRAW_POLYGON:
1722         {
1723           wxOpPolyDraw *theOp = new wxOpPolyDraw(opId, 0, NULL);
1724           theOp->ReadExpr(this, expr);
1725           m_ops.Append(theOp);
1726           break;
1727         }
1728         default:
1729           break;
1730       }
1731     }
1732     i ++;
1733   }
1734
1735   wxString outlineObjectsStr;
1736   outlineObjectsStr.Printf("outline_objects%d", whichAngle);
1737
1738   // Now read in the list of outline and fill operations, if any
1739   wxExpr *expr1 = clause->AttributeValue(outlineObjectsStr);
1740   if (expr1)
1741   {
1742     wxExpr *eachExpr = expr1->GetFirst();
1743     while (eachExpr)
1744     {
1745       m_outlineColours.Append((wxObject *)eachExpr->IntegerValue());
1746       eachExpr = eachExpr->GetNext();
1747     }
1748   }
1749
1750   wxString fillObjectsStr;
1751   fillObjectsStr.Printf("fill_objects%d", whichAngle);
1752
1753   expr1 = clause->AttributeValue(fillObjectsStr);
1754   if (expr1)
1755   {
1756     wxExpr *eachExpr = expr1->GetFirst();
1757     while (eachExpr)
1758     {
1759       m_fillColours.Append((wxObject *)eachExpr->IntegerValue());
1760       eachExpr = eachExpr->GetNext();
1761     }
1762   }
1763 }
1764 #endif
1765
1766 // Does the copying for this object
1767 void wxPseudoMetaFile::Copy(wxPseudoMetaFile& copy)
1768 {
1769   copy.Clear();
1770
1771   copy.m_currentRotation = m_currentRotation;
1772   copy.m_width = m_width;
1773   copy.m_height = m_height;
1774   copy.m_rotateable = m_rotateable;
1775   copy.m_fillBrush = m_fillBrush;
1776   copy.m_outlinePen = m_outlinePen;
1777   copy.m_outlineOp = m_outlineOp;
1778
1779   // Copy the GDI objects
1780   wxNode *node = m_gdiObjects.First();
1781   while (node)
1782   {
1783     wxObject *obj = (wxObject *)node->Data();
1784     copy.m_gdiObjects.Append(obj);
1785     node = node->Next();
1786   }
1787
1788   // Copy the operations
1789   node = m_ops.First();
1790   while (node)
1791   {
1792     wxDrawOp *op = (wxDrawOp *)node->Data();
1793     copy.m_ops.Append(op->Copy(&copy));
1794     node = node->Next();
1795   }
1796
1797   // Copy the outline/fill operations
1798   node = m_outlineColours.First();
1799   while (node)
1800   {
1801     copy.m_outlineColours.Append((wxObject *)node->Data());
1802     node = node->Next();
1803   }
1804   node = m_fillColours.First();
1805   while (node)
1806   {
1807     copy.m_fillColours.Append((wxObject *)node->Data());
1808     node = node->Next();
1809   }
1810 }
1811
1812 /*
1813  * Pass size of existing image; scale height to
1814  * fit width and return new width and height.
1815  *
1816  */
1817
1818 bool wxPseudoMetaFile::LoadFromMetaFile(char *filename, double *rwidth, double *rheight)
1819 {
1820   if (!FileExists(filename))
1821     return NULL;
1822
1823   wxXMetaFile *metaFile = new wxXMetaFile;
1824
1825   if (!metaFile->ReadFile(filename))
1826   {
1827     delete metaFile;
1828     return FALSE;
1829   }
1830
1831   double lastX = 0.0;
1832   double lastY = 0.0;
1833
1834   // Convert from metafile records to wxDrawnShape records
1835   wxNode *node = metaFile->metaRecords.First();
1836   while (node)
1837   {
1838     wxMetaRecord *record = (wxMetaRecord *)node->Data();
1839     switch (record->metaFunction)
1840     {
1841       case META_SETBKCOLOR:
1842       {
1843         wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_BK_COLOUR, this, 0);
1844         op->m_r = (unsigned char)record->param1;
1845         op->m_g = (unsigned char)record->param2;
1846         op->m_b = (unsigned char)record->param3;
1847         m_ops.Append(op);
1848         break;
1849       }
1850       case META_SETBKMODE:
1851       {
1852         wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_BK_MODE, this, 0, (int)record->param1);
1853         m_ops.Append(op);
1854         break;
1855       }
1856       case META_SETMAPMODE:
1857       {
1858         break;
1859       }
1860 //      case META_SETROP2:
1861 //      case META_SETRELABS:
1862 //      case META_SETPOLYFILLMODE:
1863 //      case META_SETSTRETCHBLTMODE:
1864 //      case META_SETTEXTCHAREXTRA:
1865       case META_SETTEXTCOLOR:
1866       {
1867         wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_TEXT_COLOUR, this, 0);
1868         op->m_r = (unsigned char)record->param1;
1869         op->m_g = (unsigned char)record->param2;
1870         op->m_b = (unsigned char)record->param3;
1871         m_ops.Append(op);
1872         break;
1873       }
1874 //      case META_SETTEXTJUSTIFICATION:
1875 //      case META_SETWINDOWORG:
1876 //      case META_SETWINDOWEXT:
1877 //      case META_SETVIEWPORTORG:
1878 //      case META_SETVIEWPORTEXT:
1879 //      case META_OFFSETWINDOWORG:
1880 //      case META_SCALEWINDOWEXT:
1881 //      case META_OFFSETVIEWPORTORG:
1882 //      case META_SCALEVIEWPORTEXT:
1883       case META_LINETO:
1884       {
1885         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_LINE, (double)lastX, (double)lastY,
1886                                (double)record->param1, (double)record->param2);
1887         m_ops.Append(op);
1888         break;
1889       }
1890       case META_MOVETO:
1891       {
1892         lastX = (double)record->param1;
1893         lastY = (double)record->param2;
1894         break;
1895       }
1896       case META_EXCLUDECLIPRECT:
1897       {
1898 /*
1899         wxMetaRecord *rec = new wxMetaRecord(META_EXCLUDECLIPRECT);
1900         rec->param4 = getshort(handle); // m_y2
1901         rec->param3 = getshort(handle); // x2
1902         rec->param2 = getshort(handle); // y1
1903         rec->param1 = getshort(handle); // x1
1904 */
1905         break;
1906       }
1907       case META_INTERSECTCLIPRECT:
1908       {
1909 /*
1910         rec->param4 = getshort(handle); // m_y2
1911         rec->param3 = getshort(handle); // x2
1912         rec->param2 = getshort(handle); // y1
1913         rec->param1 = getshort(handle); // x1
1914 */
1915         break;
1916       }
1917 //      case META_ARC: // DO!!!
1918       case META_ELLIPSE:
1919       {
1920         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_ELLIPSE,
1921                                (double)record->param1, (double)record->param2,
1922                                (double)(record->param3 - record->param1),
1923                                (double)(record->param4 - record->param2));
1924         m_ops.Append(op);
1925         break;
1926       }
1927 //      case META_FLOODFILL:
1928 //      case META_PIE: // DO!!!
1929       case META_RECTANGLE:
1930       {
1931         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_RECT,
1932                                (double)record->param1, (double)record->param2,
1933                                (double)(record->param3 - record->param1),
1934                                (double)(record->param4 - record->param2));
1935         m_ops.Append(op);
1936         break;
1937       }
1938       case META_ROUNDRECT:
1939       {
1940         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_ROUNDED_RECT,
1941               (double)record->param1, (double)record->param2,
1942               (double)(record->param3 - record->param1),
1943               (double)(record->param4 - record->param2), (double)record->param5);
1944         m_ops.Append(op);
1945         break;
1946       }
1947 //      case META_PATBLT:
1948 //      case META_SAVEDC:
1949       case META_SETPIXEL:
1950       {
1951         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_POINT,
1952               (double)record->param1, (double)record->param2,
1953               0.0, 0.0);
1954
1955 //        SHOULD SET THE COLOUR - SET PEN?
1956 //        rec->param3 = getint(handle);   // COLORREF
1957         m_ops.Append(op);
1958         break;
1959       }
1960 //      case META_OFFSETCLIPRGN:
1961       case META_TEXTOUT:
1962       {
1963         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_TEXT,
1964               (double)record->param1, (double)record->param2,
1965               0.0, 0.0, 0.0, record->stringParam);
1966         m_ops.Append(op);
1967         break;
1968       }
1969 //      case META_BITBLT:
1970 //      case META_STRETCHBLT:
1971       case META_POLYGON:
1972       {
1973         int n = (int)record->param1;
1974         wxRealPoint *newPoints = new wxRealPoint[n];
1975         for (int i = 0; i < n; i++)
1976         {
1977           newPoints[i].x = record->points[i].x;
1978           newPoints[i].y = record->points[i].y;
1979         }
1980
1981         wxOpPolyDraw *op = new wxOpPolyDraw(DRAWOP_DRAW_POLYGON, n, newPoints);
1982         m_ops.Append(op);
1983         break;
1984       }
1985       case META_POLYLINE:
1986       {
1987         int n = (int)record->param1;
1988         wxRealPoint *newPoints = new wxRealPoint[n];
1989         for (int i = 0; i < n; i++)
1990         {
1991           newPoints[i].x = record->points[i].x;
1992           newPoints[i].y = record->points[i].y;
1993         }
1994
1995         wxOpPolyDraw *op = new wxOpPolyDraw(DRAWOP_DRAW_POLYLINE, n, newPoints);
1996         m_ops.Append(op);
1997         break;
1998       }
1999 //      case META_ESCAPE:
2000 //      case META_RESTOREDC:
2001 //      case META_FILLREGION:
2002 //      case META_FRAMEREGION:
2003 //      case META_INVERTREGION:
2004 //      case META_PAINTREGION:
2005 //      case META_SELECTCLIPREGION: // DO THIS!
2006       case META_SELECTOBJECT:
2007       {
2008         // The pen, brush etc. has already been created when the metafile
2009         // was read in, so we don't create it - we set it.
2010         wxNode *recNode = metaFile->gdiObjects.Nth((int)record->param2);
2011         if (recNode)
2012         {
2013           wxMetaRecord *gdiRec = (wxMetaRecord *)recNode->Data();
2014           if (gdiRec && (gdiRec->param1 != 0))
2015           {
2016             wxObject *obj = (wxObject *)gdiRec->param1;
2017             if (obj->IsKindOf(CLASSINFO(wxPen)))
2018             {
2019               wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_PEN, this, (int)record->param2);
2020               m_ops.Append(op);
2021             }
2022             else if (obj->IsKindOf(CLASSINFO(wxBrush)))
2023             {
2024               wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_BRUSH, this, (int)record->param2);
2025               m_ops.Append(op);
2026             }
2027             else if (obj->IsKindOf(CLASSINFO(wxFont)))
2028             {
2029               wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_FONT, this, (int)record->param2);
2030               m_ops.Append(op);
2031             }
2032           }
2033         }
2034         break;
2035       }
2036 //      case META_SETTEXTALIGN:
2037 //      case META_DRAWTEXT:
2038 //      case META_CHORD:
2039 //      case META_SETMAPPERFLAGS:
2040 //      case META_EXTTEXTOUT:
2041 //      case META_SETDIBTODEV:
2042 //      case META_SELECTPALETTE:
2043 //      case META_REALIZEPALETTE:
2044 //      case META_ANIMATEPALETTE:
2045 //      case META_SETPALENTRIES:
2046 //      case META_POLYPOLYGON:
2047 //      case META_RESIZEPALETTE:
2048 //      case META_DIBBITBLT:
2049 //      case META_DIBSTRETCHBLT:
2050       case META_DIBCREATEPATTERNBRUSH:
2051       {
2052         // Place holder
2053         m_gdiObjects.Append(NULL);
2054         break;
2055       }
2056 //      case META_STRETCHDIB:
2057 //      case META_EXTFLOODFILL:
2058 //      case META_RESETDC:
2059 //      case META_STARTDOC:
2060 //      case META_STARTPAGE:
2061 //      case META_ENDPAGE:
2062 //      case META_ABORTDOC:
2063 //      case META_ENDDOC:
2064 //      case META_DELETEOBJECT: // DO!!
2065       case META_CREATEPALETTE:
2066       {
2067         // Place holder
2068         m_gdiObjects.Append(NULL);
2069         break;
2070       }
2071       case META_CREATEBRUSH:
2072       {
2073         // Place holder
2074         m_gdiObjects.Append(NULL);
2075         break;
2076       }
2077       case META_CREATEPATTERNBRUSH:
2078       {
2079         // Place holder
2080         m_gdiObjects.Append(NULL);
2081         break;
2082       }
2083       case META_CREATEPENINDIRECT:
2084       {
2085         // The pen is created when the metafile is read in.
2086         // We keep track of all the GDI objects needed for this
2087         // image so when reading the wxDrawnShape from file,
2088         // we can read in all the GDI objects, then refer
2089         // to them by an index starting from zero thereafter.
2090         m_gdiObjects.Append((wxObject *)record->param1);
2091         break;
2092       }
2093       case META_CREATEFONTINDIRECT:
2094       {
2095         m_gdiObjects.Append((wxObject *)record->param1);
2096         break;
2097       }
2098       case META_CREATEBRUSHINDIRECT:
2099       {
2100         // Don't have to do anything here: the pen is created
2101         // when the metafile is read in.
2102         m_gdiObjects.Append((wxObject *)record->param1);
2103         break;
2104       }
2105       case META_CREATEBITMAPINDIRECT:
2106       {
2107         // Place holder
2108         m_gdiObjects.Append(NULL);
2109         break;
2110       }
2111       case META_CREATEBITMAP:
2112       {
2113         // Place holder
2114         m_gdiObjects.Append(NULL);
2115         break;
2116       }
2117       case META_CREATEREGION:
2118       {
2119         // Place holder
2120         m_gdiObjects.Append(NULL);
2121         break;
2122       }
2123       default:
2124       {
2125         break;
2126       }
2127     }
2128     node = node->Next();
2129   }
2130   double actualWidth = (double)fabs(metaFile->right - metaFile->left);
2131   double actualHeight = (double)fabs(metaFile->bottom - metaFile->top);
2132
2133   double initialScaleX = 1.0;
2134   double initialScaleY = 1.0;
2135
2136   double xoffset, yoffset;
2137
2138   // Translate so origin is at centre of rectangle
2139   if (metaFile->bottom > metaFile->top)
2140     yoffset = - (double)((metaFile->bottom - metaFile->top)/2.0);
2141   else
2142     yoffset = - (double)((metaFile->top - metaFile->bottom)/2.0);
2143
2144   if (metaFile->right > metaFile->left)
2145     xoffset = - (double)((metaFile->right - metaFile->left)/2.0);
2146   else
2147     xoffset = - (double)((metaFile->left - metaFile->right)/2.0);
2148
2149   Translate(xoffset, yoffset);
2150
2151   // Scale to a reasonable size (take the width of this wxDrawnShape
2152   // as a guide)
2153   if (actualWidth != 0.0)
2154   {
2155     initialScaleX = (double)((*rwidth) / actualWidth);
2156     initialScaleY = initialScaleX;
2157     (*rheight) = initialScaleY*actualHeight;
2158   }
2159   Scale(initialScaleX, initialScaleY);
2160
2161   m_width = (actualWidth*initialScaleX);
2162   m_height = *rheight;
2163
2164   delete metaFile;
2165   return TRUE;
2166 }
2167
2168 // Scale to fit size
2169 void wxPseudoMetaFile::ScaleTo(double w, double h)
2170 {
2171   double scaleX = (double)(w/m_width);
2172   double scaleY = (double)(h/m_height);
2173
2174   // Do the scaling
2175   Scale(scaleX, scaleY);
2176 }
2177
2178 void wxPseudoMetaFile::GetBounds(double *boundMinX, double *boundMinY, double *boundMaxX, double *boundMaxY)
2179 {
2180   double maxX = (double) -99999.9;
2181   double maxY = (double) -99999.9;
2182   double minX = (double) 99999.9;
2183   double minY = (double) 99999.9;
2184
2185   wxNode *node = m_ops.First();
2186   while (node)
2187   {
2188     wxDrawOp *op = (wxDrawOp *)node->Data();
2189     switch (op->GetOp())
2190     {
2191       case DRAWOP_DRAW_LINE:
2192       case DRAWOP_DRAW_RECT:
2193       case DRAWOP_DRAW_ROUNDED_RECT:
2194       case DRAWOP_DRAW_ELLIPSE:
2195       case DRAWOP_DRAW_POINT:
2196       case DRAWOP_DRAW_TEXT:
2197       {
2198         wxOpDraw *opDraw = (wxOpDraw *)op;
2199         if (opDraw->m_x1 < minX) minX = opDraw->m_x1;
2200         if (opDraw->m_x1 > maxX) maxX = opDraw->m_x1;
2201         if (opDraw->m_y1 < minY) minY = opDraw->m_y1;
2202         if (opDraw->m_y1 > maxY) maxY = opDraw->m_y1;
2203         if (op->GetOp() == DRAWOP_DRAW_LINE)
2204         {
2205           if (opDraw->m_x2 < minX) minX = opDraw->m_x2;
2206           if (opDraw->m_x2 > maxX) maxX = opDraw->m_x2;
2207           if (opDraw->m_y2 < minY) minY = opDraw->m_y2;
2208           if (opDraw->m_y2 > maxY) maxY = opDraw->m_y2;
2209         }
2210         else if (op->GetOp() == DRAWOP_DRAW_RECT ||
2211                  op->GetOp() == DRAWOP_DRAW_ROUNDED_RECT ||
2212                  op->GetOp() == DRAWOP_DRAW_ELLIPSE)
2213         {
2214           if ((opDraw->m_x1 + opDraw->m_x2) < minX) minX = (opDraw->m_x1 + opDraw->m_x2);
2215           if ((opDraw->m_x1 + opDraw->m_x2) > maxX) maxX = (opDraw->m_x1 + opDraw->m_x2);
2216           if ((opDraw->m_y1 + opDraw->m_y2) < minY) minY = (opDraw->m_y1 + opDraw->m_y2);
2217           if ((opDraw->m_y1 + opDraw->m_y2) > maxY) maxY = (opDraw->m_y1 + opDraw->m_y2);
2218         }
2219         break;
2220       }
2221       case DRAWOP_DRAW_ARC:
2222       {
2223         // TODO: don't yet know how to calculate the bounding box
2224         // for an arc. So pretend it's a line; to get a correct
2225         // bounding box, draw a blank rectangle first, of the correct
2226         // size.
2227         wxOpDraw *opDraw = (wxOpDraw *)op;
2228         if (opDraw->m_x1 < minX) minX = opDraw->m_x1;
2229         if (opDraw->m_x1 > maxX) maxX = opDraw->m_x1;
2230         if (opDraw->m_y1 < minY) minY = opDraw->m_y1;
2231         if (opDraw->m_y1 > maxY) maxY = opDraw->m_y1;
2232         if (opDraw->m_x2 < minX) minX = opDraw->m_x2;
2233         if (opDraw->m_x2 > maxX) maxX = opDraw->m_x2;
2234         if (opDraw->m_y2 < minY) minY = opDraw->m_y2;
2235         if (opDraw->m_y2 > maxY) maxY = opDraw->m_y2;
2236         break;
2237       }
2238       case DRAWOP_DRAW_POLYLINE:
2239       case DRAWOP_DRAW_POLYGON:
2240       case DRAWOP_DRAW_SPLINE:
2241       {
2242         wxOpPolyDraw *poly = (wxOpPolyDraw *)op;
2243         for (int i = 0; i < poly->m_noPoints; i++)
2244         {
2245           if (poly->m_points[i].x < minX) minX = poly->m_points[i].x;
2246           if (poly->m_points[i].x > maxX) maxX = poly->m_points[i].x;
2247           if (poly->m_points[i].y < minY) minY = poly->m_points[i].y;
2248           if (poly->m_points[i].y > maxY) maxY = poly->m_points[i].y;
2249         }
2250         break;
2251       }
2252       default:
2253         break;
2254     }
2255     node = node->Next();
2256   }
2257
2258   *boundMinX = minX;
2259   *boundMinY = minY;
2260   *boundMaxX = maxX;
2261   *boundMaxY = maxY;
2262 /*
2263   *w = (double)fabs(maxX - minX);
2264   *h = (double)fabs(maxY - minY);
2265 */
2266 }
2267
2268 // Calculate size from current operations
2269 void wxPseudoMetaFile::CalculateSize(wxDrawnShape* shape)
2270 {
2271   double boundMinX, boundMinY, boundMaxX, boundMaxY;
2272
2273   GetBounds(& boundMinX, & boundMinY, & boundMaxX, & boundMaxY);
2274
2275   SetSize(boundMaxX - boundMinX, boundMaxY - boundMinY);
2276
2277   if (shape)
2278   {
2279     shape->SetWidth(m_width);
2280     shape->SetHeight(m_height);
2281   }
2282 }
2283
2284 // Set of functions for drawing into a pseudo metafile.
2285 // They use integers, but doubles are used internally for accuracy
2286 // when scaling.
2287
2288 void wxPseudoMetaFile::DrawLine(const wxPoint& pt1, const wxPoint& pt2)
2289 {
2290     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_LINE,
2291           (double) pt1.x, (double) pt1.y, (double) pt2.x, (double) pt2.y);
2292
2293     m_ops.Append(theOp);
2294 }
2295
2296 void wxPseudoMetaFile::DrawRectangle(const wxRect& rect)
2297 {
2298     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_RECT,
2299           (double) rect.x, (double) rect.y, (double) rect.width, (double) rect.height);
2300
2301     m_ops.Append(theOp);
2302 }
2303
2304 void wxPseudoMetaFile::DrawRoundedRectangle(const wxRect& rect, double radius)
2305 {
2306     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_ROUNDED_RECT,
2307           (double) rect.x, (double) rect.y, (double) rect.width, (double) rect.height);
2308
2309     theOp->m_radius = radius;
2310
2311     m_ops.Append(theOp);
2312 }
2313
2314 void wxPseudoMetaFile::DrawEllipse(const wxRect& rect)
2315 {
2316     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_ELLIPSE,
2317           (double) rect.x, (double) rect.y, (double) rect.width, (double) rect.height);
2318
2319     m_ops.Append(theOp);
2320 }
2321
2322 void wxPseudoMetaFile::DrawArc(const wxPoint& centrePt, const wxPoint& startPt, const wxPoint& endPt)
2323 {
2324     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_ARC,
2325           (double) centrePt.x, (double) centrePt.y, (double) startPt.x, (double) startPt.y);
2326
2327     theOp->m_x3 = (double) endPt.x;
2328     theOp->m_y3 = (double) endPt.y;
2329
2330     m_ops.Append(theOp);
2331 }
2332
2333 void wxPseudoMetaFile::DrawEllipticArc(const wxRect& rect, double startAngle, double endAngle)
2334 {
2335     const double pi = 3.1415926535897932384626433832795 ;
2336
2337     double startAngleRadians = startAngle* (pi*2.0/360.0);
2338     double endAngleRadians = endAngle* (pi*2.0/360.0);
2339
2340     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_ELLIPTIC_ARC,
2341           (double) rect.x, (double) rect.y, (double) rect.width, (double) rect.height);
2342
2343     theOp->m_x3 = startAngleRadians;
2344     theOp->m_y3 = endAngleRadians;
2345
2346     m_ops.Append(theOp);
2347 }
2348
2349 void wxPseudoMetaFile::DrawPoint(const wxPoint& pt)
2350 {
2351     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_POINT,
2352           (double) pt.x, (double) pt.y, 0.0, 0.0);
2353
2354     m_ops.Append(theOp);
2355 }
2356
2357 void wxPseudoMetaFile::DrawText(const wxString& text, const wxPoint& pt)
2358 {
2359     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_TEXT,
2360           (double) pt.x, (double) pt.y, 0.0, 0.0);
2361
2362     theOp->m_textString = copystring(text);
2363
2364     m_ops.Append(theOp);
2365 }
2366
2367 void wxPseudoMetaFile::DrawLines(int n, wxPoint pts[])
2368 {
2369     wxRealPoint* realPoints = new wxRealPoint[n];
2370     int i;
2371     for (i = 0; i < n; i++)
2372     {
2373         realPoints[i].x = pts[i].x;
2374         realPoints[i].y = pts[i].y;
2375     }
2376     wxOpPolyDraw* theOp = new wxOpPolyDraw(DRAWOP_DRAW_POLYLINE, n, realPoints);
2377     m_ops.Append(theOp);
2378 }
2379
2380 void wxPseudoMetaFile::DrawPolygon(int n, wxPoint pts[], int flags)
2381 {
2382     wxRealPoint* realPoints = new wxRealPoint[n];
2383     int i;
2384     for (i = 0; i < n; i++)
2385     {
2386         realPoints[i].x = pts[i].x;
2387         realPoints[i].y = pts[i].y;
2388     }
2389     wxOpPolyDraw* theOp = new wxOpPolyDraw(DRAWOP_DRAW_POLYGON, n, realPoints);
2390     m_ops.Append(theOp);
2391
2392     if (flags & oglMETAFLAGS_OUTLINE)
2393         m_outlineOp = (m_ops.Number() - 1);
2394 }
2395
2396 void wxPseudoMetaFile::DrawSpline(int n, wxPoint pts[])
2397 {
2398     wxRealPoint* realPoints = new wxRealPoint[n];
2399     int i;
2400     for (i = 0; i < n; i++)
2401     {
2402         realPoints[i].x = pts[i].x;
2403         realPoints[i].y = pts[i].y;
2404     }
2405     wxOpPolyDraw* theOp = new wxOpPolyDraw(DRAWOP_DRAW_SPLINE, n, realPoints);
2406     m_ops.Append(theOp);
2407 }
2408
2409 void wxPseudoMetaFile::SetClippingRect(const wxRect& rect)
2410 {
2411     wxOpSetClipping* theOp = new wxOpSetClipping(DRAWOP_SET_CLIPPING_RECT,
2412         (double) rect.x, (double) rect.y, (double) rect.width, (double) rect.height);
2413 }
2414
2415 void wxPseudoMetaFile::DestroyClippingRect()
2416 {
2417     wxOpSetClipping* theOp = new wxOpSetClipping(DRAWOP_DESTROY_CLIPPING_RECT,
2418         0.0, 0.0, 0.0, 0.0);
2419
2420     m_ops.Append(theOp);
2421 }
2422
2423 void wxPseudoMetaFile::SetPen(wxPen* pen, bool isOutline)
2424 {
2425     m_gdiObjects.Append(pen);
2426     int n = m_gdiObjects.Number();
2427
2428     wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_PEN, this, n - 1);
2429
2430     m_ops.Append(theOp);
2431
2432     if (isOutline)
2433     {
2434         m_outlineColours.Append((wxObject*) (n - 1));
2435     }
2436 }
2437
2438 void wxPseudoMetaFile::SetBrush(wxBrush* brush, bool isFill)
2439 {
2440     m_gdiObjects.Append(brush);
2441     int n = m_gdiObjects.Number();
2442
2443     wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_BRUSH, this, n - 1);
2444
2445     m_ops.Append(theOp);
2446
2447     if (isFill)
2448     {
2449         m_fillColours.Append((wxObject*) (n - 1));
2450     }
2451 }
2452
2453 void wxPseudoMetaFile::SetFont(wxFont* font)
2454 {
2455     m_gdiObjects.Append(font);
2456     int n = m_gdiObjects.Number();
2457
2458     wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_FONT, this, n - 1);
2459
2460     m_ops.Append(theOp);
2461 }
2462
2463 void wxPseudoMetaFile::SetTextColour(const wxColour& colour)
2464 {
2465    wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_TEXT_COLOUR, this, 0);
2466    theOp->m_r = colour.Red();
2467    theOp->m_g = colour.Green();
2468    theOp->m_b = colour.Blue();
2469
2470    m_ops.Append(theOp);
2471 }
2472
2473 void wxPseudoMetaFile::SetBackgroundColour(const wxColour& colour)
2474 {
2475    wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_BK_COLOUR, this, 0);
2476    theOp->m_r = colour.Red();
2477    theOp->m_g = colour.Green();
2478    theOp->m_b = colour.Blue();
2479
2480    m_ops.Append(theOp);
2481 }
2482
2483 void wxPseudoMetaFile::SetBackgroundMode(int mode)
2484 {
2485    wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_BK_MODE, this, 0, mode);
2486
2487    m_ops.Append(theOp);
2488 }
2489