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 #if wxUSE_PROLOGIO
  29 #include <wx/deprecated/wxexpr.h>
  30 #endif
  31
  32 #include "wx/ogl/ogl.h"
  33
  34
  35 #include <math.h>
  36
  37 static void IntToHex(unsigned int dec, wxChar *buf);
  38 static unsigned long HexToInt(wxChar *buf);
  39 extern wxChar *oglBuffer;
  40
  41 #define gyTYPE_PEN   40
  42 #define gyTYPE_BRUSH 41
  43 #define gyTYPE_FONT  42
  44
  45 /*
  46  * Drawn object
  47  *
  48  */
  49
  50 IMPLEMENT_DYNAMIC_CLASS(wxDrawnShape, wxRectangleShape)
  51
  52 wxDrawnShape::wxDrawnShape():wxRectangleShape(100.0, 50.0)
  53 {
  54   m_saveToFile = true;
  55   m_currentAngle = oglDRAWN_ANGLE_0;
  56 }
  57
  58 wxDrawnShape::~wxDrawnShape()
  59 {
  60 }
  61
  62 void wxDrawnShape::OnDraw(wxDC& dc)
  63 {
  64   // Pass pen and brush in case we have force outline
  65   // and fill colours
  66   if (m_shadowMode != SHADOW_NONE)
  67   {
  68     if (m_shadowBrush)
  69       m_metafiles[m_currentAngle].m_fillBrush = m_shadowBrush;
  70     m_metafiles[m_currentAngle].m_outlinePen = g_oglTransparentPen;
  71     m_metafiles[m_currentAngle].Draw(dc, m_xpos + m_shadowOffsetX, m_ypos + m_shadowOffsetY);
  72   }
  73
  74   m_metafiles[m_currentAngle].m_outlinePen = m_pen;
  75   m_metafiles[m_currentAngle].m_fillBrush = m_brush;
  76   m_metafiles[m_currentAngle].Draw(dc, m_xpos, m_ypos);
  77 }
  78
  79 void wxDrawnShape::SetSize(double w, double h, bool WXUNUSED(recursive))
  80 {
  81   SetAttachmentSize(w, h);
  82
  83   double scaleX;
  84   double scaleY;
  85   if (GetWidth() == 0.0)
  86     scaleX = 1.0;
  87   else scaleX = w/GetWidth();
  88   if (GetHeight() == 0.0)
  89     scaleY = 1.0;
  90   else scaleY = h/GetHeight();
  91
  92   for (int i = 0; i < 4; i++)
  93   {
  94     if (m_metafiles[i].IsValid())
  95         m_metafiles[i].Scale(scaleX, scaleY);
  96   }
  97   m_width = w;
  98   m_height = h;
  99   SetDefaultRegionSize();
 100 }
 101
 102 void wxDrawnShape::Scale(double sx, double sy)
 103 {
 104     int i;
 105     for (i = 0; i < 4; i++)
 106     {
 107         if (m_metafiles[i].IsValid())
 108         {
 109             m_metafiles[i].Scale(sx, sy);
 110             m_metafiles[i].CalculateSize(this);
 111         }
 112     }
 113 }
 114
 115 void wxDrawnShape::Translate(double x, double y)
 116 {
 117     int i;
 118     for (i = 0; i < 4; i++)
 119     {
 120         if (m_metafiles[i].IsValid())
 121         {
 122             m_metafiles[i].Translate(x, y);
 123             m_metafiles[i].CalculateSize(this);
 124         }
 125     }
 126 }
 127
 128 // theta is absolute rotation from the zero position
 129 void wxDrawnShape::Rotate(double x, double y, double theta)
 130 {
 131   m_currentAngle = DetermineMetaFile(theta);
 132
 133   if (m_currentAngle == 0)
 134   {
 135     // Rotate metafile
 136     if (!m_metafiles[0].GetRotateable())
 137       return;
 138
 139     m_metafiles[0].Rotate(x, y, theta);
 140   }
 141
 142   double actualTheta = theta-m_rotation;
 143
 144   // Rotate attachment points
 145   double sinTheta = (double)sin(actualTheta);
 146   double cosTheta = (double)cos(actualTheta);
 147   wxNode *node = m_attachmentPoints.GetFirst();
 148   while (node)
 149   {
 150     wxAttachmentPoint *point = (wxAttachmentPoint *)node->GetData();
 151     double x1 = point->m_x;
 152     double y1 = point->m_y;
 153     point->m_x = x1*cosTheta - y1*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 154     point->m_y = x1*sinTheta + y1*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 155     node = node->GetNext();
 156   }
 157   m_rotation = theta;
 158
 159   m_metafiles[m_currentAngle].CalculateSize(this);
 160 }
 161
 162 // Which metafile do we use now? Based on current rotation and validity
 163 // of metafiles.
 164
 165 int wxDrawnShape::DetermineMetaFile(double rotation)
 166 {
 167     double tolerance = 0.0001;
 168     const double pi = 3.1415926535897932384626433832795 ;
 169     double angle1 = 0.0;
 170     double angle2 = pi/2.0;
 171     double angle3 = pi;
 172     double angle4 = 3.0*pi/2.0;
 173
 174     int whichMetafile = 0;
 175
 176     if (oglRoughlyEqual(rotation, angle1, tolerance))
 177     {
 178         whichMetafile = 0;
 179     }
 180     else if (oglRoughlyEqual(rotation, angle2, tolerance))
 181     {
 182         whichMetafile = 1;
 183     }
 184     else if (oglRoughlyEqual(rotation, angle3, tolerance))
 185     {
 186         whichMetafile = 2;
 187     }
 188     else if (oglRoughlyEqual(rotation, angle4, tolerance))
 189     {
 190         whichMetafile = 3;
 191     }
 192
 193     if ((whichMetafile > 0) && !m_metafiles[whichMetafile].IsValid())
 194         whichMetafile = 0;
 195
 196     return whichMetafile;
 197 }
 198
 199 void wxDrawnShape::OnDrawOutline(wxDC& dc, double x, double y, double w, double h)
 200 {
 201     if (m_metafiles[m_currentAngle].GetOutlineOp() != -1)
 202     {
 203         wxNode* node = m_metafiles[m_currentAngle].GetOps().Item(m_metafiles[m_currentAngle].GetOutlineOp());
 204         wxASSERT (node != NULL);
 205         wxDrawOp* op = (wxDrawOp*) node->GetData();
 206
 207         if (op->OnDrawOutline(dc, x, y, w, h, m_width, m_height))
 208             return;
 209     }
 210
 211     // Default... just use a rectangle
 212     wxRectangleShape::OnDrawOutline(dc, x, y, w, h);
 213 }
 214
 215 // Get the perimeter point using the special outline op, if there is one,
 216 // otherwise use default wxRectangleShape scheme
 217 bool wxDrawnShape::GetPerimeterPoint(double x1, double y1,
 218                                      double x2, double y2,
 219                                      double *x3, double *y3)
 220 {
 221     if (m_metafiles[m_currentAngle].GetOutlineOp() != -1)
 222     {
 223         wxNode* node = m_metafiles[m_currentAngle].GetOps().Item(m_metafiles[m_currentAngle].GetOutlineOp());
 224         wxASSERT (node != NULL);
 225         wxDrawOp* op = (wxDrawOp*) node->GetData();
 226
 227         if (op->GetPerimeterPoint(x1, y1, x2, y2, x3, y3, GetX(), GetY(), GetAttachmentMode()))
 228             return true;
 229     }
 230
 231     // Default... just use a rectangle
 232     return wxRectangleShape::GetPerimeterPoint(x1, y1, x2, y2, x3, y3);
 233 }
 234
 235 #if wxUSE_PROLOGIO
 236 void wxDrawnShape::WriteAttributes(wxExpr *clause)
 237 {
 238   wxRectangleShape::WriteAttributes(clause);
 239
 240   clause->AddAttributeValue(_T("current_angle"), (long)m_currentAngle);
 241   clause->AddAttributeValue(_T("save_metafile"), (long)m_saveToFile);
 242   if (m_saveToFile)
 243   {
 244     for (int i = 0; i < 4; i++)
 245     {
 246         if (m_metafiles[i].IsValid())
 247             m_metafiles[i].WriteAttributes(clause, i);
 248     }
 249   }
 250 }
 251
 252 void wxDrawnShape::ReadAttributes(wxExpr *clause)
 253 {
 254   wxRectangleShape::ReadAttributes(clause);
 255
 256   int iVal = (int) m_saveToFile;
 257   clause->GetAttributeValue(_T("save_metafile"), iVal);
 258   clause->GetAttributeValue(_T("current_angle"), m_currentAngle);
 259   m_saveToFile = (iVal != 0);
 260
 261   if (m_saveToFile)
 262   {
 263     for (int i = 0; i < 4; i++)
 264     {
 265       m_metafiles[i].ReadAttributes(clause, i);
 266     }
 267   }
 268 }
 269 #endif
 270
 271 // Does the copying for this object
 272 void wxDrawnShape::Copy(wxShape& copy)
 273 {
 274   wxRectangleShape::Copy(copy);
 275
 276   wxASSERT( copy.IsKindOf(CLASSINFO(wxDrawnShape)) ) ;
 277
 278   wxDrawnShape& drawnCopy = (wxDrawnShape&) copy;
 279
 280   for (int i = 0; i < 4; i++)
 281   {
 282     m_metafiles[i].Copy(drawnCopy.m_metafiles[i]);
 283   }
 284   drawnCopy.m_saveToFile = m_saveToFile;
 285   drawnCopy.m_currentAngle = m_currentAngle;
 286 }
 287
 288 bool wxDrawnShape::LoadFromMetaFile(const wxString& filename)
 289 {
 290   return m_metafiles[0].LoadFromMetaFile(filename, &m_width, &m_height);
 291 }
 292
 293 // Set of functions for drawing into a pseudo metafile.
 294 // They use integers, but doubles are used internally for accuracy
 295 // when scaling.
 296
 297 void wxDrawnShape::DrawLine(const wxPoint& pt1, const wxPoint& pt2)
 298 {
 299     m_metafiles[m_currentAngle].DrawLine(pt1, pt2);
 300 }
 301
 302 void wxDrawnShape::DrawRectangle(const wxRect& rect)
 303 {
 304     m_metafiles[m_currentAngle].DrawRectangle(rect);
 305 }
 306
 307 void wxDrawnShape::DrawRoundedRectangle(const wxRect& rect, double radius)
 308 {
 309     m_metafiles[m_currentAngle].DrawRoundedRectangle(rect, radius);
 310 }
 311
 312 void wxDrawnShape::DrawEllipse(const wxRect& rect)
 313 {
 314     m_metafiles[m_currentAngle].DrawEllipse(rect);
 315 }
 316
 317 void wxDrawnShape::DrawArc(const wxPoint& centrePt, const wxPoint& startPt, const wxPoint& endPt)
 318 {
 319     m_metafiles[m_currentAngle].DrawArc(centrePt, startPt, endPt);
 320 }
 321
 322 void wxDrawnShape::DrawEllipticArc(const wxRect& rect, double startAngle, double endAngle)
 323 {
 324     m_metafiles[m_currentAngle].DrawEllipticArc(rect, startAngle, endAngle);
 325 }
 326
 327 void wxDrawnShape::DrawPoint(const wxPoint& pt)
 328 {
 329     m_metafiles[m_currentAngle].DrawPoint(pt);
 330 }
 331
 332 void wxDrawnShape::DrawText(const wxString& text, const wxPoint& pt)
 333 {
 334     m_metafiles[m_currentAngle].DrawText(text, pt);
 335 }
 336
 337 void wxDrawnShape::DrawLines(int n, wxPoint pts[])
 338 {
 339     m_metafiles[m_currentAngle].DrawLines(n, pts);
 340 }
 341
 342 void wxDrawnShape::DrawPolygon(int n, wxPoint pts[], int flags)
 343 {
 344     if (flags & oglMETAFLAGS_ATTACHMENTS)
 345     {
 346         ClearAttachments();
 347         int i;
 348         for (i = 0; i < n; i++)
 349             m_attachmentPoints.Append(new wxAttachmentPoint(i, pts[i].x, pts[i].y));
 350     }
 351     m_metafiles[m_currentAngle].DrawPolygon(n, pts, flags);
 352 }
 353
 354 void wxDrawnShape::DrawSpline(int n, wxPoint pts[])
 355 {
 356     m_metafiles[m_currentAngle].DrawSpline(n, pts);
 357 }
 358
 359 void wxDrawnShape::SetClippingRect(const wxRect& rect)
 360 {
 361     m_metafiles[m_currentAngle].SetClippingRect(rect);
 362 }
 363
 364 void wxDrawnShape::DestroyClippingRect()
 365 {
 366     m_metafiles[m_currentAngle].DestroyClippingRect();
 367 }
 368
 369 void wxDrawnShape::SetDrawnPen(wxPen* pen, bool isOutline)
 370 {
 371     m_metafiles[m_currentAngle].SetPen(pen, isOutline);
 372 }
 373
 374 void wxDrawnShape::SetDrawnBrush(wxBrush* brush, bool isFill)
 375 {
 376     m_metafiles[m_currentAngle].SetBrush(brush, isFill);
 377 }
 378
 379 void wxDrawnShape::SetDrawnFont(wxFont* font)
 380 {
 381     m_metafiles[m_currentAngle].SetFont(font);
 382 }
 383
 384 void wxDrawnShape::SetDrawnTextColour(const wxColour& colour)
 385 {
 386     m_metafiles[m_currentAngle].SetTextColour(colour);
 387 }
 388
 389 void wxDrawnShape::SetDrawnBackgroundColour(const wxColour& colour)
 390 {
 391     m_metafiles[m_currentAngle].SetBackgroundColour(colour);
 392 }
 393
 394 void wxDrawnShape::SetDrawnBackgroundMode(int mode)
 395 {
 396     m_metafiles[m_currentAngle].SetBackgroundMode(mode);
 397 }
 398
 399
 400 /*
 401  * Individual operations
 402  *
 403  */
 404
 405 /*
 406  * Set font, brush, text colour
 407  *
 408  */
 409
 410 wxOpSetGDI::wxOpSetGDI(int theOp, wxPseudoMetaFile *theImage, int theGdiIndex, int theMode):
 411   wxDrawOp(theOp)
 412 {
 413   m_gdiIndex = theGdiIndex;
 414   m_image = theImage;
 415   m_mode = theMode;
 416 }
 417
 418 void wxOpSetGDI::Do(wxDC& dc, double WXUNUSED(xoffset), double WXUNUSED(yoffset))
 419 {
 420   switch (m_op)
 421   {
 422     case DRAWOP_SET_PEN:
 423     {
 424       // Check for overriding this operation for outline
 425       // colour
 426       if (m_image->m_outlineColours.Member((wxObject *)m_gdiIndex))
 427       {
 428         if (m_image->m_outlinePen)
 429           dc.SetPen(* m_image->m_outlinePen);
 430       }
 431       else
 432       {
 433         wxNode *node = m_image->m_gdiObjects.Item(m_gdiIndex);
 434         if (node)
 435         {
 436           wxPen *pen = (wxPen *)node->GetData();
 437           if (pen)
 438             dc.SetPen(* pen);
 439         }
 440       }
 441       break;
 442     }
 443     case DRAWOP_SET_BRUSH:
 444     {
 445       // Check for overriding this operation for outline or fill
 446       // colour
 447       if (m_image->m_outlineColours.Member((wxObject *)m_gdiIndex))
 448       {
 449         // Need to construct a brush to match the outline pen's colour
 450         if (m_image->m_outlinePen)
 451         {
 452           wxBrush *br = wxTheBrushList->FindOrCreateBrush(m_image->m_outlinePen->GetColour(), wxSOLID);
 453           if (br)
 454             dc.SetBrush(* br);
 455         }
 456       }
 457       else if (m_image->m_fillColours.Member((wxObject *)m_gdiIndex))
 458       {
 459         if (m_image->m_fillBrush)
 460         {
 461           dc.SetBrush(* m_image->m_fillBrush);
 462         }
 463       }
 464       else
 465       {
 466         wxNode *node = m_image->m_gdiObjects.Item(m_gdiIndex);
 467         if (node)
 468         {
 469           wxBrush *brush = (wxBrush *)node->GetData();
 470           if (brush)
 471             dc.SetBrush(* brush);
 472         }
 473       }
 474       break;
 475     }
 476     case DRAWOP_SET_FONT:
 477     {
 478       wxNode *node = m_image->m_gdiObjects.Item(m_gdiIndex);
 479       if (node)
 480       {
 481         wxFont *font = (wxFont *)node->GetData();
 482         if (font)
 483           dc.SetFont(* font);
 484       }
 485       break;
 486     }
 487     case DRAWOP_SET_TEXT_COLOUR:
 488     {
 489       wxColour col(m_r,m_g,m_b);
 490       dc.SetTextForeground(col);
 491       break;
 492     }
 493     case DRAWOP_SET_BK_COLOUR:
 494     {
 495       wxColour col(m_r,m_g,m_b);
 496       dc.SetTextBackground(col);
 497       break;
 498     }
 499     case DRAWOP_SET_BK_MODE:
 500     {
 501       dc.SetBackgroundMode(m_mode);
 502       break;
 503     }
 504     default:
 505       break;
 506   }
 507 }
 508
 509 wxDrawOp *wxOpSetGDI::Copy(wxPseudoMetaFile *newImage)
 510 {
 511   wxOpSetGDI *newOp = new wxOpSetGDI(m_op, newImage, m_gdiIndex, m_mode);
 512   newOp->m_r = m_r;
 513   newOp->m_g = m_g;
 514   newOp->m_b = m_b;
 515   return newOp;
 516 }
 517
 518 #if wxUSE_PROLOGIO
 519 wxExpr *wxOpSetGDI::WriteExpr(wxPseudoMetaFile *WXUNUSED(image))
 520 {
 521   wxExpr *expr = new wxExpr(wxExprList);
 522   expr->Append(new wxExpr((long)m_op));
 523   switch (m_op)
 524   {
 525     case DRAWOP_SET_PEN:
 526     case DRAWOP_SET_BRUSH:
 527     case DRAWOP_SET_FONT:
 528     {
 529       expr->Append(new wxExpr((long)m_gdiIndex));
 530       break;
 531     }
 532     case DRAWOP_SET_TEXT_COLOUR:
 533     case DRAWOP_SET_BK_COLOUR:
 534     {
 535       expr->Append(new wxExpr((long)m_r));
 536       expr->Append(new wxExpr((long)m_g));
 537       expr->Append(new wxExpr((long)m_b));
 538       break;
 539     }
 540     case DRAWOP_SET_BK_MODE:
 541     {
 542       expr->Append(new wxExpr((long)m_mode));
 543       break;
 544     }
 545     default:
 546       break;
 547   }
 548   return expr;
 549 }
 550
 551 void wxOpSetGDI::ReadExpr(wxPseudoMetaFile *WXUNUSED(image), wxExpr *expr)
 552 {
 553   switch (m_op)
 554   {
 555     case DRAWOP_SET_PEN:
 556     case DRAWOP_SET_BRUSH:
 557     case DRAWOP_SET_FONT:
 558     {
 559       m_gdiIndex = (int)expr->Nth(1)->IntegerValue();
 560       break;
 561     }
 562     case DRAWOP_SET_TEXT_COLOUR:
 563     case DRAWOP_SET_BK_COLOUR:
 564     {
 565       m_r = (unsigned char)expr->Nth(1)->IntegerValue();
 566       m_g = (unsigned char)expr->Nth(2)->IntegerValue();
 567       m_b = (unsigned char)expr->Nth(3)->IntegerValue();
 568       break;
 569     }
 570     case DRAWOP_SET_BK_MODE:
 571     {
 572       m_mode = (int)expr->Nth(1)->IntegerValue();
 573       break;
 574     }
 575     default:
 576       break;
 577   }
 578 }
 579 #endif
 580
 581 /*
 582  * Set/destroy clipping
 583  *
 584  */
 585
 586 wxOpSetClipping::wxOpSetClipping(int theOp, double theX1, double theY1,
 587     double theX2, double theY2):wxDrawOp(theOp)
 588 {
 589   m_x1 = theX1;
 590   m_y1 = theY1;
 591   m_x2 = theX2;
 592   m_y2 = theY2;
 593 }
 594
 595 wxDrawOp *wxOpSetClipping::Copy(wxPseudoMetaFile *WXUNUSED(newImage))
 596 {
 597   wxOpSetClipping *newOp = new wxOpSetClipping(m_op, m_x1, m_y1, m_x2, m_y2);
 598   return newOp;
 599 }
 600
 601 void wxOpSetClipping::Do(wxDC& dc, double xoffset, double yoffset)
 602 {
 603   switch (m_op)
 604   {
 605     case DRAWOP_SET_CLIPPING_RECT:
 606     {
 607       dc.SetClippingRegion((long)(m_x1 + xoffset), (long)(m_y1 + yoffset), (long)(m_x2 + xoffset), (long)(m_y2 + yoffset));
 608       break;
 609     }
 610     case DRAWOP_DESTROY_CLIPPING_RECT:
 611     {
 612       dc.DestroyClippingRegion();
 613       break;
 614     }
 615     default:
 616       break;
 617   }
 618 }
 619
 620 void wxOpSetClipping::Scale(double xScale, double yScale)
 621 {
 622   m_x1 *= xScale;
 623   m_y1 *= yScale;
 624   m_x2 *= xScale;
 625   m_y2 *= yScale;
 626 }
 627
 628 void wxOpSetClipping::Translate(double x, double y)
 629 {
 630   m_x1 += x;
 631   m_y1 += y;
 632 }
 633
 634 #if wxUSE_PROLOGIO
 635 wxExpr *wxOpSetClipping::WriteExpr(wxPseudoMetaFile *WXUNUSED(image))
 636 {
 637   wxExpr *expr = new wxExpr(wxExprList);
 638   expr->Append(new wxExpr((long)m_op));
 639   switch (m_op)
 640   {
 641     case DRAWOP_SET_CLIPPING_RECT:
 642     {
 643       expr->Append(new wxExpr(m_x1));
 644       expr->Append(new wxExpr(m_y1));
 645       expr->Append(new wxExpr(m_x2));
 646       expr->Append(new wxExpr(m_y2));
 647       break;
 648     }
 649     default:
 650       break;
 651   }
 652   return expr;
 653 }
 654
 655 void wxOpSetClipping::ReadExpr(wxPseudoMetaFile *WXUNUSED(image), wxExpr *expr)
 656 {
 657   switch (m_op)
 658   {
 659     case DRAWOP_SET_CLIPPING_RECT:
 660     {
 661       m_x1 = expr->Nth(1)->RealValue();
 662       m_y1 = expr->Nth(2)->RealValue();
 663       m_x2 = expr->Nth(3)->RealValue();
 664       m_y2 = expr->Nth(4)->RealValue();
 665       break;
 666     }
 667     default:
 668       break;
 669   }
 670 }
 671 #endif
 672
 673 /*
 674  * Draw line, rectangle, rounded rectangle, ellipse, point, arc, text
 675  *
 676  */
 677
 678 wxOpDraw::wxOpDraw(int theOp, double theX1, double theY1, double theX2, double theY2,
 679          double theRadius, const wxString& s) : wxDrawOp(theOp)
 680 {
 681   m_x1 = theX1;
 682   m_y1 = theY1;
 683   m_x2 = theX2;
 684   m_y2 = theY2;
 685   m_x3 = 0.0;
 686   m_y3 = 0.0;
 687   m_radius = theRadius;
 688   m_textString = s;
 689 }
 690
 691 wxOpDraw::~wxOpDraw()
 692 {
 693 }
 694
 695 wxDrawOp *wxOpDraw::Copy(wxPseudoMetaFile *WXUNUSED(newImage))
 696 {
 697   wxOpDraw *newOp = new wxOpDraw(m_op, m_x1, m_y1, m_x2, m_y2, m_radius, m_textString);
 698   newOp->m_x3 = m_x3;
 699   newOp->m_y3 = m_y3;
 700   return newOp;
 701 }
 702
 703 void wxOpDraw::Do(wxDC& dc, double xoffset, double yoffset)
 704 {
 705   switch (m_op)
 706   {
 707     case DRAWOP_DRAW_LINE:
 708     {
 709       dc.DrawLine(WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset), WXROUND(m_x2+xoffset), WXROUND(m_y2+yoffset));
 710       break;
 711     }
 712     case DRAWOP_DRAW_RECT:
 713     {
 714       dc.DrawRectangle(WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset), WXROUND(m_x2), WXROUND(m_y2));
 715       break;
 716     }
 717     case DRAWOP_DRAW_ROUNDED_RECT:
 718     {
 719       dc.DrawRoundedRectangle(WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset), WXROUND(m_x2), WXROUND(m_y2), m_radius);
 720       break;
 721     }
 722     case DRAWOP_DRAW_ELLIPSE:
 723     {
 724       dc.DrawEllipse(WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset), WXROUND(m_x2), WXROUND(m_y2));
 725       break;
 726     }
 727     case DRAWOP_DRAW_ARC:
 728     {
 729       dc.DrawArc(WXROUND(m_x2+xoffset), WXROUND(m_y2+yoffset),
 730                  WXROUND(m_x3+xoffset), WXROUND(m_y3+yoffset),
 731                  WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset));
 732       break;
 733     }
 734     case DRAWOP_DRAW_ELLIPTIC_ARC:
 735     {
 736       const double pi = 3.1415926535897932384626433832795 ;
 737
 738       // Convert back to degrees
 739       dc.DrawEllipticArc(
 740                  WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset),
 741                  WXROUND(m_x2), WXROUND(m_y2),
 742                  WXROUND(m_x3*(360.0/(2.0*pi))), WXROUND(m_y3*(360.0/(2.0*pi))));
 743       break;
 744     }
 745     case DRAWOP_DRAW_POINT:
 746     {
 747       dc.DrawPoint(WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset));
 748       break;
 749     }
 750     case DRAWOP_DRAW_TEXT:
 751     {
 752       dc.DrawText(m_textString, WXROUND(m_x1+xoffset), WXROUND(m_y1+yoffset));
 753       break;
 754     }
 755     default:
 756       break;
 757   }
 758 }
 759
 760 void wxOpDraw::Scale(double scaleX, double scaleY)
 761 {
 762   m_x1 *= scaleX;
 763   m_y1 *= scaleY;
 764   m_x2 *= scaleX;
 765   m_y2 *= scaleY;
 766
 767   if (m_op != DRAWOP_DRAW_ELLIPTIC_ARC)
 768   {
 769     m_x3 *= scaleX;
 770     m_y3 *= scaleY;
 771   }
 772
 773   m_radius *= scaleX;
 774 }
 775
 776 void wxOpDraw::Translate(double x, double y)
 777 {
 778   m_x1 += x;
 779   m_y1 += y;
 780
 781   switch (m_op)
 782   {
 783     case DRAWOP_DRAW_LINE:
 784     {
 785       m_x2 += x;
 786       m_y2 += y;
 787       break;
 788     }
 789     case DRAWOP_DRAW_ARC:
 790     {
 791       m_x2 += x;
 792       m_y2 += y;
 793       m_x3 += x;
 794       m_y3 += y;
 795       break;
 796     }
 797     case DRAWOP_DRAW_ELLIPTIC_ARC:
 798     {
 799       break;
 800     }
 801     default:
 802       break;
 803   }
 804 }
 805
 806 void wxOpDraw::Rotate(double x, double y, double theta, double sinTheta, double cosTheta)
 807 {
 808   double newX1 = m_x1*cosTheta - m_y1*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 809   double newY1 = m_x1*sinTheta + m_y1*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 810
 811   switch (m_op)
 812   {
 813     case DRAWOP_DRAW_LINE:
 814     {
 815       double newX2 = m_x2*cosTheta - m_y2*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 816       double newY2 = m_x2*sinTheta + m_y2*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 817
 818       m_x1 = newX1;
 819       m_y1 = newY1;
 820       m_x2 = newX2;
 821       m_y2 = newY2;
 822       break;
 823     }
 824     case DRAWOP_DRAW_RECT:
 825     case DRAWOP_DRAW_ROUNDED_RECT:
 826     case DRAWOP_DRAW_ELLIPTIC_ARC:
 827     {
 828       // Assume only 0, 90, 180, 270 degree rotations.
 829       // oldX1, oldY1 represents the top left corner. Find the
 830       // bottom right, and rotate that. Then the width/height is the difference
 831       // between x/y values.
 832       double oldBottomRightX = m_x1 + m_x2;
 833       double oldBottomRightY = m_y1 + m_y2;
 834       double newBottomRightX = oldBottomRightX*cosTheta - oldBottomRightY*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 835       double newBottomRightY = oldBottomRightX*sinTheta + oldBottomRightY*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 836
 837       // Now find the new top-left, bottom-right coordinates.
 838       double minX = wxMin(newX1, newBottomRightX);
 839       double minY = wxMin(newY1, newBottomRightY);
 840       double maxX = wxMax(newX1, newBottomRightX);
 841       double maxY = wxMax(newY1, newBottomRightY);
 842
 843       m_x1 = minX;
 844       m_y1 = minY;
 845       m_x2 = maxX - minX; // width
 846       m_y2 = maxY - minY; // height
 847
 848       if (m_op == DRAWOP_DRAW_ELLIPTIC_ARC)
 849       {
 850         // Add rotation to angles
 851         m_x3 += theta;
 852         m_y3 += theta;
 853       }
 854
 855       break;
 856     }
 857     case DRAWOP_DRAW_ARC:
 858     {
 859       double newX2 = m_x2*cosTheta - m_y2*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 860       double newY2 = m_x2*sinTheta + m_y2*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 861       double newX3 = m_x3*cosTheta - m_y3*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
 862       double newY3 = m_x3*sinTheta + m_y3*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
 863
 864       m_x1 = newX1;
 865       m_y1 = newY1;
 866       m_x2 = newX2;
 867       m_y2 = newY2;
 868       m_x3 = newX3;
 869       m_y3 = newY3;
 870
 871       break;
 872     }
 873     default:
 874       break;
 875   }
 876 }
 877
 878 #if wxUSE_PROLOGIO
 879 wxExpr *wxOpDraw::WriteExpr(wxPseudoMetaFile *WXUNUSED(image))
 880 {
 881   wxExpr *expr = new wxExpr(wxExprList);
 882   expr->Append(new wxExpr((long)m_op));
 883   switch (m_op)
 884   {
 885     case DRAWOP_DRAW_LINE:
 886     case DRAWOP_DRAW_RECT:
 887     case DRAWOP_DRAW_ELLIPSE:
 888     {
 889       expr->Append(new wxExpr(m_x1));
 890       expr->Append(new wxExpr(m_y1));
 891       expr->Append(new wxExpr(m_x2));
 892       expr->Append(new wxExpr(m_y2));
 893       break;
 894     }
 895     case DRAWOP_DRAW_ROUNDED_RECT:
 896     {
 897       expr->Append(new wxExpr(m_x1));
 898       expr->Append(new wxExpr(m_y1));
 899       expr->Append(new wxExpr(m_x2));
 900       expr->Append(new wxExpr(m_y2));
 901       expr->Append(new wxExpr(m_radius));
 902       break;
 903     }
 904     case DRAWOP_DRAW_POINT:
 905     {
 906       expr->Append(new wxExpr(m_x1));
 907       expr->Append(new wxExpr(m_y1));
 908       break;
 909     }
 910     case DRAWOP_DRAW_TEXT:
 911     {
 912       expr->Append(new wxExpr(m_x1));
 913       expr->Append(new wxExpr(m_y1));
 914       expr->Append(new wxExpr(wxExprString, m_textString));
 915       break;
 916     }
 917     case DRAWOP_DRAW_ARC:
 918     case DRAWOP_DRAW_ELLIPTIC_ARC:
 919     {
 920       expr->Append(new wxExpr(m_x1));
 921       expr->Append(new wxExpr(m_y1));
 922       expr->Append(new wxExpr(m_x2));
 923       expr->Append(new wxExpr(m_y2));
 924       expr->Append(new wxExpr(m_x3));
 925       expr->Append(new wxExpr(m_y3));
 926       break;
 927     }
 928     default:
 929     {
 930       break;
 931     }
 932   }
 933   return expr;
 934 }
 935
 936 void wxOpDraw::ReadExpr(wxPseudoMetaFile *WXUNUSED(image), wxExpr *expr)
 937 {
 938   switch (m_op)
 939   {
 940     case DRAWOP_DRAW_LINE:
 941     case DRAWOP_DRAW_RECT:
 942     case DRAWOP_DRAW_ELLIPSE:
 943     {
 944       m_x1 = expr->Nth(1)->RealValue();
 945       m_y1 = expr->Nth(2)->RealValue();
 946       m_x2 = expr->Nth(3)->RealValue();
 947       m_y2 = expr->Nth(4)->RealValue();
 948       break;
 949     }
 950     case DRAWOP_DRAW_ROUNDED_RECT:
 951     {
 952       m_x1 = expr->Nth(1)->RealValue();
 953       m_y1 = expr->Nth(2)->RealValue();
 954       m_x2 = expr->Nth(3)->RealValue();
 955       m_y2 = expr->Nth(4)->RealValue();
 956       m_radius = expr->Nth(5)->RealValue();
 957       break;
 958     }
 959     case DRAWOP_DRAW_POINT:
 960     {
 961       m_x1 = expr->Nth(1)->RealValue();
 962       m_y1 = expr->Nth(2)->RealValue();
 963       break;
 964     }
 965     case DRAWOP_DRAW_TEXT:
 966     {
 967       m_x1 = expr->Nth(1)->RealValue();
 968       m_y1 = expr->Nth(2)->RealValue();
 969       m_textString = wxString(expr->Nth(3)->StringValue());
 970       break;
 971     }
 972     case DRAWOP_DRAW_ARC:
 973     case DRAWOP_DRAW_ELLIPTIC_ARC:
 974     {
 975       m_x1 = expr->Nth(1)->RealValue();
 976       m_y1 = expr->Nth(2)->RealValue();
 977       m_x2 = expr->Nth(3)->RealValue();
 978       m_y2 = expr->Nth(4)->RealValue();
 979       m_x3 = expr->Nth(5)->RealValue();
 980       m_y3 = expr->Nth(6)->RealValue();
 981       break;
 982     }
 983     default:
 984     {
 985       break;
 986     }
 987   }
 988 }
 989 #endif
 990
 991 /*
 992  * Draw polygon, polyline, spline
 993  *
 994  */
 995
 996 wxOpPolyDraw::wxOpPolyDraw(int theOp, int n, wxRealPoint *thePoints):wxDrawOp(theOp)
 997 {
 998   m_noPoints = n;
 999   m_points = thePoints;
1000 }
1001
1002 wxOpPolyDraw::~wxOpPolyDraw()
1003 {
1004   delete[] m_points;
1005 }
1006
1007 wxDrawOp *wxOpPolyDraw::Copy(wxPseudoMetaFile *WXUNUSED(newImage))
1008 {
1009   wxRealPoint *newPoints = new wxRealPoint[m_noPoints];
1010   for (int i = 0; i < m_noPoints; i++)
1011   {
1012     newPoints[i].x = m_points[i].x;
1013     newPoints[i].y = m_points[i].y;
1014   }
1015   wxOpPolyDraw *newOp = new wxOpPolyDraw(m_op, m_noPoints, newPoints);
1016   return newOp;
1017 }
1018
1019 void wxOpPolyDraw::Do(wxDC& dc, double xoffset, double yoffset)
1020 {
1021   switch (m_op)
1022   {
1023     case DRAWOP_DRAW_POLYLINE:
1024     {
1025         wxPoint *actualPoints = new wxPoint[m_noPoints];
1026         int i;
1027         for (i = 0; i < m_noPoints; i++)
1028         {
1029             actualPoints[i].x = WXROUND(m_points[i].x);
1030             actualPoints[i].y = WXROUND(m_points[i].y);
1031         }
1032
1033         dc.DrawLines(m_noPoints, actualPoints, WXROUND(xoffset), WXROUND(yoffset));
1034
1035         delete[] actualPoints;
1036         break;
1037     }
1038     case DRAWOP_DRAW_POLYGON:
1039     {
1040         wxPoint *actualPoints = new wxPoint[m_noPoints];
1041         int i;
1042         for (i = 0; i < m_noPoints; i++)
1043         {
1044             actualPoints[i].x = WXROUND(m_points[i].x);
1045             actualPoints[i].y = WXROUND(m_points[i].y);
1046         }
1047
1048         dc.DrawPolygon(m_noPoints, actualPoints, WXROUND(xoffset), WXROUND(yoffset));
1049
1050         delete[] actualPoints;
1051         break;
1052     }
1053     case DRAWOP_DRAW_SPLINE:
1054     {
1055         wxPoint *actualPoints = new wxPoint[m_noPoints];
1056         int i;
1057         for (i = 0; i < m_noPoints; i++)
1058         {
1059             actualPoints[i].x = WXROUND(m_points[i].x);
1060             actualPoints[i].y = WXROUND(m_points[i].y);
1061         }
1062
1063         dc.DrawSpline(m_noPoints, actualPoints); // no offsets in DrawSpline // , xoffset, yoffset);
1064
1065         delete[] actualPoints;
1066         break;
1067     }
1068     default:
1069       break;
1070   }
1071 }
1072
1073 void wxOpPolyDraw::Scale(double scaleX, double scaleY)
1074 {
1075   for (int i = 0; i < m_noPoints; i++)
1076   {
1077     m_points[i].x *= scaleX;
1078     m_points[i].y *= scaleY;
1079   }
1080 }
1081
1082 void wxOpPolyDraw::Translate(double x, double y)
1083 {
1084   for (int i = 0; i < m_noPoints; i++)
1085   {
1086     m_points[i].x += x;
1087     m_points[i].y += y;
1088   }
1089 }
1090
1091 void wxOpPolyDraw::Rotate(double x, double y, double WXUNUSED(theta), double sinTheta, double cosTheta)
1092 {
1093   for (int i = 0; i < m_noPoints; i++)
1094   {
1095     double x1 = m_points[i].x;
1096     double y1 = m_points[i].y;
1097     m_points[i].x = x1*cosTheta - y1*sinTheta + x*(1.0 - cosTheta) + y*sinTheta;
1098     m_points[i].y = x1*sinTheta + y1*cosTheta + y*(1.0 - cosTheta) + x*sinTheta;
1099   }
1100 }
1101
1102 #if wxUSE_PROLOGIO
1103 wxExpr *wxOpPolyDraw::WriteExpr(wxPseudoMetaFile *WXUNUSED(image))
1104 {
1105   wxExpr *expr = new wxExpr(wxExprList);
1106   expr->Append(new wxExpr((long)m_op));
1107   expr->Append(new wxExpr((long)m_noPoints));
1108
1109 //  char buf1[9];
1110   wxChar buf2[5];
1111   wxChar buf3[5];
1112
1113   oglBuffer[0] = 0;
1114
1115   /*
1116    * Store each coordinate pair in a hex string to save space.
1117    * E.g. "1B9080CD". 4 hex digits per coordinate pair.
1118    *
1119    */
1120
1121   for (int i = 0; i < m_noPoints; i++)
1122   {
1123     long signedX = (long)(m_points[i].x*100.0);
1124     long signedY = (long)(m_points[i].y*100.0);
1125
1126     // Scale to 0 -> 64K
1127     long unSignedX = (long)(signedX + 32767.0);
1128     long unSignedY = (long)(signedY + 32767.0);
1129
1130 //    IntToHex((unsigned int)signedX, buf2);
1131 //    IntToHex((unsigned int)signedY, buf3);
1132     IntToHex((int)unSignedX, buf2);
1133     IntToHex((int)unSignedY, buf3);
1134
1135     // Don't overrun the buffer
1136     if ((i*8) < 3000)
1137     {
1138       wxStrcat(oglBuffer, buf2);
1139       wxStrcat(oglBuffer, buf3);
1140     }
1141   }
1142   expr->Append(new wxExpr(wxExprString, oglBuffer));
1143   return expr;
1144 }
1145
1146 void wxOpPolyDraw::ReadExpr(wxPseudoMetaFile *WXUNUSED(image), wxExpr *expr)
1147 {
1148   m_noPoints = (int)expr->Nth(1)->IntegerValue();
1149
1150   wxChar buf1[5];
1151   wxChar buf2[5];
1152
1153   m_points = new wxRealPoint[m_noPoints];
1154   int i = 0;
1155   int bufPtr = 0;
1156   wxString hexString = expr->Nth(2)->StringValue();
1157   while (i < m_noPoints)
1158   {
1159     buf1[0] = hexString[(size_t)bufPtr];
1160     buf1[1] = hexString[(size_t)(bufPtr + 1)];
1161     buf1[2] = hexString[(size_t)(bufPtr + 2)];
1162     buf1[3] = hexString[(size_t)(bufPtr + 3)];
1163     buf1[4] = 0;
1164
1165     buf2[0] = hexString[(size_t)(bufPtr + 4)];
1166     buf2[1] = hexString[(size_t)(bufPtr + 5)];
1167     buf2[2] = hexString[(size_t)(bufPtr + 6)];
1168     buf2[3] = hexString[(size_t)(bufPtr + 7)];
1169     buf2[4] = 0;
1170
1171     bufPtr += 8;
1172
1173 //    int signedX = (signed int)HexToInt(buf1);
1174 //    int signedY = (signed int)HexToInt(buf2);
1175     long unSignedX = HexToInt(buf1);
1176     long unSignedY = HexToInt(buf2);
1177     // Scale -32K -> +32K
1178     long signedX = unSignedX - 32767;
1179     long signedY = unSignedY - 32767;
1180 #if defined(__WXMSW__) && 0
1181     int testX = (signed int)unSignedX;
1182     int testY = (signed int)unSignedY;
1183 #endif
1184
1185     m_points[i].x = (double)(signedX / 100.0);
1186     m_points[i].y = (double)(signedY / 100.0);
1187
1188     i ++;
1189   }
1190 }
1191 #endif
1192
1193 // Draw an outline using the current operation.
1194 bool wxOpPolyDraw::OnDrawOutline(wxDC& dc, double x, double y, double w, double h, double oldW, double oldH)
1195 {
1196     dc.SetBrush(* wxTRANSPARENT_BRUSH);
1197
1198     // Multiply all points by proportion of new size to old size
1199     double x_proportion = (double)(fabs(w/oldW));
1200     double y_proportion = (double)(fabs(h/oldH));
1201
1202     int n = m_noPoints;
1203     wxPoint *intPoints = new wxPoint[n];
1204     int i;
1205     for (i = 0; i < n; i++)
1206     {
1207         intPoints[i].x = WXROUND (x_proportion * m_points[i].x);
1208         intPoints[i].y = WXROUND (y_proportion * m_points[i].y);
1209     }
1210     dc.DrawPolygon(n, intPoints, (long) x, (long) y);
1211     delete[] intPoints;
1212     return true;
1213 }
1214
1215 // Assume (x1, y1) is centre of box (most generally, line end at box)
1216 bool wxOpPolyDraw::GetPerimeterPoint(double x1, double y1,
1217                                      double x2, double y2,
1218                                      double *x3, double *y3,
1219                                      double xOffset, double yOffset,
1220                                      int attachmentMode)
1221 {
1222   int n = m_noPoints;
1223
1224   // First check for situation where the line is vertical,
1225   // and we would want to connect to a point on that vertical --
1226   // oglFindEndForPolyline can't cope with this (the arrow
1227   // gets drawn to the wrong place).
1228   if ((attachmentMode == ATTACHMENT_MODE_NONE) && (x1 == x2))
1229   {
1230     // Look for the point we'd be connecting to. This is
1231     // a heuristic...
1232     int i;
1233     for (i = 0; i < n; i++)
1234     {
1235       wxRealPoint *point = & (m_points[i]);
1236       if (point->x == 0.0)
1237       {
1238         if ((y2 > y1) && (point->y > 0.0))
1239         {
1240           *x3 = point->x + xOffset;
1241           *y3 = point->y + yOffset;
1242           return true;
1243         }
1244         else if ((y2 < y1) && (point->y < 0.0))
1245         {
1246           *x3 = point->x + xOffset;
1247           *y3 = point->y + yOffset;
1248           return true;
1249         }
1250       }
1251     }
1252   }
1253
1254   double *xpoints = new double[n];
1255   double *ypoints = new double[n];
1256
1257   for (int i = 0; i < n; i++)
1258   {
1259     wxRealPoint *point = & (m_points[i]);
1260     xpoints[i] = point->x + xOffset;
1261     ypoints[i] = point->y + yOffset;
1262   }
1263
1264   oglFindEndForPolyline(n, xpoints, ypoints,
1265                         x1, y1, x2, y2, x3, y3);
1266
1267   delete[] xpoints;
1268   delete[] ypoints;
1269
1270   return true;
1271 }
1272
1273
1274 /*
1275  * Utilities
1276  *
1277  */
1278
1279 static char hexArray[] = {
1280     _T('0'), _T('1'), _T('2'), _T('3'), _T('4'), _T('5'), _T('6'), _T('7'),
1281     _T('8'), _T('9'), _T('A'), _T('B'), _T('C'), _T('D'), _T('E'), _T('F') };
1282
1283 // Convert unsigned 16-bit integer to 4-character hex string
1284 static void IntToHex(unsigned int dec, wxChar *buf)
1285 {
1286   int digit1 = (int)(dec/4096);
1287   int digit2 = (int)((dec - (digit1*4096))/256);
1288   int digit3 = (int)((dec - (digit1*4096) - (digit2*256))/16);
1289   int digit4 = dec - (digit1*4096 + digit2*256 + digit3*16);
1290
1291   buf[0] = hexArray[digit1];
1292   buf[1] = hexArray[digit2];
1293   buf[2] = hexArray[digit3];
1294   buf[3] = hexArray[digit4];
1295   buf[4] = 0;
1296 }
1297
1298 // One hex digit to decimal number
1299 static int HexToInt1(wxChar hex)
1300 {
1301   switch (hex)
1302   {
1303     case _T('0'):
1304       return 0;
1305     case _T('1'):
1306       return 1;
1307     case _T('2'):
1308       return 2;
1309     case _T('3'):
1310       return 3;
1311     case _T('4'):
1312       return 4;
1313     case _T('5'):
1314       return 5;
1315     case _T('6'):
1316       return 6;
1317     case _T('7'):
1318       return 7;
1319     case _T('8'):
1320       return 8;
1321     case _T('9'):
1322       return 9;
1323     case _T('A'):
1324       return 10;
1325     case _T('B'):
1326       return 11;
1327     case _T('C'):
1328       return 12;
1329     case _T('D'):
1330       return 13;
1331     case _T('E'):
1332       return 14;
1333     case _T('F'):
1334       return 15;
1335     #if 0
1336     // handling this default outside switch removes warning under Borland
1337     default:
1338       return 0;
1339     #endif
1340   }
1341
1342   return 0;
1343 }
1344
1345 // 4-digit hex string to unsigned integer
1346 static unsigned long HexToInt(wxChar *buf)
1347 {
1348   long d1 = (long)(HexToInt1(buf[0])*4096.0) ;
1349   long d2 = (long)(HexToInt1(buf[1])*256.0) ;
1350   long d3 = (long)(HexToInt1(buf[2])*16.0) ;
1351   long d4 = (long)(HexToInt1(buf[3])) ;
1352   unsigned long n = (long)(d1 + d2 + d3 + d4) ;
1353   return n;
1354 }
1355
1356 /*
1357  * wxPseudo meta-file
1358  *
1359  */
1360
1361 IMPLEMENT_DYNAMIC_CLASS(wxPseudoMetaFile, wxObject)
1362
1363 wxPseudoMetaFile::wxPseudoMetaFile()
1364 {
1365   m_currentRotation = 0;
1366   m_rotateable = true;
1367   m_width = 0.0;
1368   m_height = 0.0;
1369   m_outlinePen = NULL;
1370   m_fillBrush = NULL;
1371   m_outlineOp = -1;
1372 }
1373
1374 wxPseudoMetaFile::wxPseudoMetaFile(wxPseudoMetaFile& mf)
1375 {
1376   mf.Copy(*this);
1377 }
1378
1379 wxPseudoMetaFile::~wxPseudoMetaFile()
1380 {
1381   Clear();
1382 }
1383
1384 void wxPseudoMetaFile::Clear()
1385 {
1386   wxNode *node = m_ops.GetFirst();
1387   while (node)
1388   {
1389     wxDrawOp *op = (wxDrawOp *)node->GetData();
1390     delete op;
1391     node = node->GetNext();
1392   }
1393   m_ops.Clear();
1394   m_gdiObjects.Clear();
1395   m_outlineColours.Clear();
1396   m_fillColours.Clear();
1397   m_outlineOp = -1;
1398 }
1399
1400 void wxPseudoMetaFile::Draw(wxDC& dc, double xoffset, double yoffset)
1401 {
1402   wxNode *node = m_ops.GetFirst();
1403   while (node)
1404   {
1405     wxDrawOp *op = (wxDrawOp *)node->GetData();
1406     op->Do(dc, xoffset, yoffset);
1407     node = node->GetNext();
1408   }
1409 }
1410
1411 void wxPseudoMetaFile::Scale(double sx, double sy)
1412 {
1413   wxNode *node = m_ops.GetFirst();
1414   while (node)
1415   {
1416     wxDrawOp *op = (wxDrawOp *)node->GetData();
1417     op->Scale(sx, sy);
1418     node = node->GetNext();
1419   }
1420   m_width *= sx;
1421   m_height *= sy;
1422 }
1423
1424 void wxPseudoMetaFile::Translate(double x, double y)
1425 {
1426   wxNode *node = m_ops.GetFirst();
1427   while (node)
1428   {
1429     wxDrawOp *op = (wxDrawOp *)node->GetData();
1430     op->Translate(x, y);
1431     node = node->GetNext();
1432   }
1433 }
1434
1435 void wxPseudoMetaFile::Rotate(double x, double y, double theta)
1436 {
1437   double theta1 = theta-m_currentRotation;
1438   if (theta1 == 0.0) return;
1439   double cosTheta = (double)cos(theta1);
1440   double sinTheta = (double)sin(theta1);
1441
1442   wxNode *node = m_ops.GetFirst();
1443   while (node)
1444   {
1445     wxDrawOp *op = (wxDrawOp *)node->GetData();
1446     op->Rotate(x, y, theta, sinTheta, cosTheta);
1447     node = node->GetNext();
1448   }
1449   m_currentRotation = theta;
1450 }
1451
1452 #if wxUSE_PROLOGIO
1453 void wxPseudoMetaFile::WriteAttributes(wxExpr *clause, int whichAngle)
1454 {
1455   wxString widthStr;
1456   widthStr.Printf(wxT("meta_width%d"), whichAngle);
1457
1458   wxString heightStr;
1459   heightStr.Printf(wxT("meta_height%d"), whichAngle);
1460
1461   wxString outlineStr;
1462   outlineStr.Printf(wxT("outline_op%d"), whichAngle);
1463
1464   wxString rotateableStr;
1465   rotateableStr.Printf(wxT("meta_rotateable%d"), whichAngle);
1466
1467   // Write width and height
1468   clause->AddAttributeValue(widthStr, m_width);
1469   clause->AddAttributeValue(heightStr, m_height);
1470   clause->AddAttributeValue(rotateableStr, (long)m_rotateable);
1471   clause->AddAttributeValue(outlineStr, (long)m_outlineOp);
1472
1473   // Write GDI objects
1474   wxChar buf[50];
1475   int i = 1;
1476   wxNode *node = m_gdiObjects.GetFirst();
1477   while (node)
1478   {
1479     wxSprintf(buf, _T("gdi%d_%d"), whichAngle, i);
1480     wxObject *obj = (wxObject *)node->GetData();
1481     wxExpr *expr = NULL;
1482     if (obj)
1483     {
1484       if (obj->IsKindOf(CLASSINFO(wxPen)))
1485       {
1486         wxPen *thePen = (wxPen *)obj;
1487         expr = new wxExpr(wxExprList);
1488         expr->Append(new wxExpr((long)gyTYPE_PEN));
1489         expr->Append(new wxExpr((long)thePen->GetWidth()));
1490         expr->Append(new wxExpr((long)thePen->GetStyle()));
1491         expr->Append(new wxExpr((long)thePen->GetColour().Red()));
1492         expr->Append(new wxExpr((long)thePen->GetColour().Green()));
1493         expr->Append(new wxExpr((long)thePen->GetColour().Blue()));
1494       }
1495       else if (obj->IsKindOf(CLASSINFO(wxBrush)))
1496       {
1497         wxBrush *theBrush = (wxBrush *)obj;
1498         expr = new wxExpr(wxExprList);
1499         expr->Append(new wxExpr((long)gyTYPE_BRUSH));
1500         expr->Append(new wxExpr((long)theBrush->GetStyle()));
1501         expr->Append(new wxExpr((long)theBrush->GetColour().Red()));
1502         expr->Append(new wxExpr((long)theBrush->GetColour().Green()));
1503         expr->Append(new wxExpr((long)theBrush->GetColour().Blue()));
1504       }
1505       else if (obj->IsKindOf(CLASSINFO(wxFont)))
1506       {
1507         wxFont *theFont = (wxFont *)obj;
1508         expr = new wxExpr(wxExprList);
1509         expr->Append(new wxExpr((long)gyTYPE_FONT));
1510         expr->Append(new wxExpr((long)theFont->GetPointSize()));
1511         expr->Append(new wxExpr((long)theFont->GetFamily()));
1512         expr->Append(new wxExpr((long)theFont->GetStyle()));
1513         expr->Append(new wxExpr((long)theFont->GetWeight()));
1514         expr->Append(new wxExpr((long)theFont->GetUnderlined()));
1515       }
1516     }
1517     else
1518     {
1519       // If no recognised GDI object, append a place holder anyway.
1520       expr = new wxExpr(wxExprList);
1521       expr->Append(new wxExpr((long)0));
1522     }
1523
1524     if (expr)
1525     {
1526       clause->AddAttributeValue(buf, expr);
1527       i ++;
1528     }
1529     node = node->GetNext();
1530   }
1531
1532   // Write drawing operations
1533   i = 1;
1534   node = m_ops.GetFirst();
1535   while (node)
1536   {
1537     wxSprintf(buf, _T("op%d_%d"), whichAngle, i);
1538     wxDrawOp *op = (wxDrawOp *)node->GetData();
1539     wxExpr *expr = op->WriteExpr(this);
1540     if (expr)
1541     {
1542       clause->AddAttributeValue(buf, expr);
1543       i ++;
1544     }
1545     node = node->GetNext();
1546   }
1547
1548   // Write outline and fill GDI op lists (if any)
1549   if (m_outlineColours.GetCount() > 0)
1550   {
1551     wxExpr *outlineExpr = new wxExpr(wxExprList);
1552     node = m_outlineColours.GetFirst();
1553     while (node)
1554     {
1555       outlineExpr->Append(new wxExpr((long)node->GetData()));
1556       node = node->GetNext();
1557     }
1558     wxString outlineObjectsStr;
1559     outlineObjectsStr.Printf(wxT("outline_objects%d"), whichAngle);
1560
1561     clause->AddAttributeValue(outlineObjectsStr, outlineExpr);
1562   }
1563   if (m_fillColours.GetCount() > 0)
1564   {
1565     wxExpr *fillExpr = new wxExpr(wxExprList);
1566     node = m_fillColours.GetFirst();
1567     while (node)
1568     {
1569       fillExpr->Append(new wxExpr((long)node->GetData()));
1570       node = node->GetNext();
1571     }
1572     wxString fillObjectsStr;
1573     fillObjectsStr.Printf(wxT("fill_objects%d"), whichAngle);
1574
1575     clause->AddAttributeValue(fillObjectsStr, fillExpr);
1576   }
1577
1578 }
1579
1580 void wxPseudoMetaFile::ReadAttributes(wxExpr *clause, int whichAngle)
1581 {
1582   wxString widthStr;
1583   widthStr.Printf(wxT("meta_width%d"), whichAngle);
1584
1585   wxString heightStr;
1586   heightStr.Printf(wxT("meta_height%d"), whichAngle);
1587
1588   wxString outlineStr;
1589   outlineStr.Printf(wxT("outline_op%d"), whichAngle);
1590
1591   wxString rotateableStr;
1592   rotateableStr.Printf(wxT("meta_rotateable%d"), whichAngle);
1593
1594   clause->GetAttributeValue(widthStr, m_width);
1595   clause->GetAttributeValue(heightStr, m_height);
1596   clause->GetAttributeValue(outlineStr, m_outlineOp);
1597
1598   int iVal = (int) m_rotateable;
1599   clause->GetAttributeValue(rotateableStr, iVal);
1600   m_rotateable = (iVal != 0);
1601
1602   // Read GDI objects
1603   wxChar buf[50];
1604   int i = 1;
1605   bool keepGoing = true;
1606   while (keepGoing)
1607   {
1608     wxSprintf(buf, _T("gdi%d_%d"), whichAngle, i);
1609     wxExpr *expr = NULL;
1610     clause->GetAttributeValue(buf, &expr);
1611     if (!expr)
1612     {
1613       keepGoing = false;
1614     }
1615     else
1616     {
1617       wxExpr *idExpr = expr->Nth(0);
1618       switch (idExpr->IntegerValue())
1619       {
1620         case gyTYPE_PEN:
1621         {
1622           int penWidth = (int)expr->Nth(1)->IntegerValue();
1623           int penStyle = (int)expr->Nth(2)->IntegerValue();
1624           int penRed = (int)expr->Nth(3)->IntegerValue();
1625           int penGreen = (int)expr->Nth(4)->IntegerValue();
1626           int penBlue = (int)expr->Nth(5)->IntegerValue();
1627           wxColour col(penRed, penGreen, penBlue);
1628           wxPen *p = wxThePenList->FindOrCreatePen(col, penWidth, penStyle);
1629           if (!p)
1630             p = wxBLACK_PEN;
1631           m_gdiObjects.Append(p);
1632           break;
1633         }
1634         case gyTYPE_BRUSH:
1635         {
1636           int brushStyle = (int)expr->Nth(1)->IntegerValue();
1637           int brushRed = (int)expr->Nth(2)->IntegerValue();
1638           int brushGreen = (int)expr->Nth(3)->IntegerValue();
1639           int brushBlue = (int)expr->Nth(4)->IntegerValue();
1640           wxColour col(brushRed, brushGreen, brushBlue);
1641           wxBrush *b = wxTheBrushList->FindOrCreateBrush(col, brushStyle);
1642           if (!b)
1643             b = wxWHITE_BRUSH;
1644           m_gdiObjects.Append(b);
1645           break;
1646         }
1647         case gyTYPE_FONT:
1648         {
1649           int fontPointSize = (int)expr->Nth(1)->IntegerValue();
1650           int fontFamily = (int)expr->Nth(2)->IntegerValue();
1651           int fontStyle = (int)expr->Nth(3)->IntegerValue();
1652           int fontWeight = (int)expr->Nth(4)->IntegerValue();
1653           int fontUnderlined = (int)expr->Nth(5)->IntegerValue();
1654           m_gdiObjects.Append(wxTheFontList->FindOrCreateFont(fontPointSize,
1655                            fontFamily, fontStyle, fontWeight, (fontUnderlined != 0)));
1656           break;
1657         }
1658         default:
1659         {
1660           // Place holder
1661           m_gdiObjects.Append(NULL);
1662           break;
1663         }
1664       }
1665       i ++;
1666     }
1667   }
1668
1669   // Now read in the operations
1670   keepGoing = true;
1671   i = 1;
1672   while (keepGoing)
1673   {
1674     wxSprintf(buf, _T("op%d_%d"), whichAngle, i);
1675     wxExpr *expr = NULL;
1676     clause->GetAttributeValue(buf, &expr);
1677     if (!expr)
1678     {
1679       keepGoing = false;
1680     }
1681     else
1682     {
1683       wxExpr *idExpr = expr->Nth(0);
1684       int opId = (int)idExpr->IntegerValue();
1685       switch (opId)
1686       {
1687         case DRAWOP_SET_PEN:
1688         case DRAWOP_SET_BRUSH:
1689         case DRAWOP_SET_FONT:
1690         case DRAWOP_SET_TEXT_COLOUR:
1691         case DRAWOP_SET_BK_COLOUR:
1692         case DRAWOP_SET_BK_MODE:
1693         {
1694           wxOpSetGDI *theOp = new wxOpSetGDI(opId, this, 0);
1695           theOp->ReadExpr(this, expr);
1696           m_ops.Append(theOp);
1697           break;
1698         }
1699
1700         case DRAWOP_SET_CLIPPING_RECT:
1701         case DRAWOP_DESTROY_CLIPPING_RECT:
1702         {
1703           wxOpSetClipping *theOp = new wxOpSetClipping(opId, 0.0, 0.0, 0.0, 0.0);
1704           theOp->ReadExpr(this, expr);
1705           m_ops.Append(theOp);
1706           break;
1707         }
1708
1709         case DRAWOP_DRAW_LINE:
1710         case DRAWOP_DRAW_RECT:
1711         case DRAWOP_DRAW_ROUNDED_RECT:
1712         case DRAWOP_DRAW_ELLIPSE:
1713         case DRAWOP_DRAW_POINT:
1714         case DRAWOP_DRAW_ARC:
1715         case DRAWOP_DRAW_TEXT:
1716         {
1717           wxOpDraw *theOp = new wxOpDraw(opId, 0.0, 0.0, 0.0, 0.0);
1718           theOp->ReadExpr(this, expr);
1719           m_ops.Append(theOp);
1720           break;
1721         }
1722         case DRAWOP_DRAW_SPLINE:
1723         case DRAWOP_DRAW_POLYLINE:
1724         case DRAWOP_DRAW_POLYGON:
1725         {
1726           wxOpPolyDraw *theOp = new wxOpPolyDraw(opId, 0, NULL);
1727           theOp->ReadExpr(this, expr);
1728           m_ops.Append(theOp);
1729           break;
1730         }
1731         default:
1732           break;
1733       }
1734     }
1735     i ++;
1736   }
1737
1738   wxString outlineObjectsStr;
1739   outlineObjectsStr.Printf(wxT("outline_objects%d"), whichAngle);
1740
1741   // Now read in the list of outline and fill operations, if any
1742   wxExpr *expr1 = clause->AttributeValue(outlineObjectsStr);
1743   if (expr1)
1744   {
1745     wxExpr *eachExpr = expr1->GetFirst();
1746     while (eachExpr)
1747     {
1748       m_outlineColours.Append((wxObject *)eachExpr->IntegerValue());
1749       eachExpr = eachExpr->GetNext();
1750     }
1751   }
1752
1753   wxString fillObjectsStr;
1754   fillObjectsStr.Printf(wxT("fill_objects%d"), whichAngle);
1755
1756   expr1 = clause->AttributeValue(fillObjectsStr);
1757   if (expr1)
1758   {
1759     wxExpr *eachExpr = expr1->GetFirst();
1760     while (eachExpr)
1761     {
1762       m_fillColours.Append((wxObject *)eachExpr->IntegerValue());
1763       eachExpr = eachExpr->GetNext();
1764     }
1765   }
1766 }
1767 #endif
1768
1769 // Does the copying for this object
1770 void wxPseudoMetaFile::Copy(wxPseudoMetaFile& copy)
1771 {
1772   copy.Clear();
1773
1774   copy.m_currentRotation = m_currentRotation;
1775   copy.m_width = m_width;
1776   copy.m_height = m_height;
1777   copy.m_rotateable = m_rotateable;
1778   copy.m_fillBrush = m_fillBrush;
1779   copy.m_outlinePen = m_outlinePen;
1780   copy.m_outlineOp = m_outlineOp;
1781
1782   // Copy the GDI objects
1783   wxNode *node = m_gdiObjects.GetFirst();
1784   while (node)
1785   {
1786     wxObject *obj = (wxObject *)node->GetData();
1787     copy.m_gdiObjects.Append(obj);
1788     node = node->GetNext();
1789   }
1790
1791   // Copy the operations
1792   node = m_ops.GetFirst();
1793   while (node)
1794   {
1795     wxDrawOp *op = (wxDrawOp *)node->GetData();
1796     copy.m_ops.Append(op->Copy(&copy));
1797     node = node->GetNext();
1798   }
1799
1800   // Copy the outline/fill operations
1801   node = m_outlineColours.GetFirst();
1802   while (node)
1803   {
1804     copy.m_outlineColours.Append((wxObject *)node->GetData());
1805     node = node->GetNext();
1806   }
1807   node = m_fillColours.GetFirst();
1808   while (node)
1809   {
1810     copy.m_fillColours.Append((wxObject *)node->GetData());
1811     node = node->GetNext();
1812   }
1813 }
1814
1815 /*
1816  * Pass size of existing image; scale height to
1817  * fit width and return new width and height.
1818  *
1819  */
1820
1821 bool wxPseudoMetaFile::LoadFromMetaFile(const wxString& filename, double *rwidth, double *rheight)
1822 {
1823   if (!wxFileExists(filename))
1824     return false;
1825
1826   wxXMetaFile *metaFile = new wxXMetaFile;
1827
1828   if (!metaFile->ReadFile(filename))
1829   {
1830     delete metaFile;
1831     return false;
1832   }
1833
1834   double lastX = 0.0;
1835   double lastY = 0.0;
1836
1837   // Convert from metafile records to wxDrawnShape records
1838   wxNode *node = metaFile->metaRecords.GetFirst();
1839   while (node)
1840   {
1841     wxMetaRecord *record = (wxMetaRecord *)node->GetData();
1842     switch (record->metaFunction)
1843     {
1844       case META_SETBKCOLOR:
1845       {
1846         wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_BK_COLOUR, this, 0);
1847         op->m_r = (unsigned char)record->param1;
1848         op->m_g = (unsigned char)record->param2;
1849         op->m_b = (unsigned char)record->param3;
1850         m_ops.Append(op);
1851         break;
1852       }
1853       case META_SETBKMODE:
1854       {
1855         wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_BK_MODE, this, 0, (int)record->param1);
1856         m_ops.Append(op);
1857         break;
1858       }
1859       case META_SETMAPMODE:
1860       {
1861         break;
1862       }
1863 //      case META_SETROP2:
1864 //      case META_SETRELABS:
1865 //      case META_SETPOLYFILLMODE:
1866 //      case META_SETSTRETCHBLTMODE:
1867 //      case META_SETTEXTCHAREXTRA:
1868       case META_SETTEXTCOLOR:
1869       {
1870         wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_TEXT_COLOUR, this, 0);
1871         op->m_r = (unsigned char)record->param1;
1872         op->m_g = (unsigned char)record->param2;
1873         op->m_b = (unsigned char)record->param3;
1874         m_ops.Append(op);
1875         break;
1876       }
1877 //      case META_SETTEXTJUSTIFICATION:
1878 //      case META_SETWINDOWORG:
1879 //      case META_SETWINDOWEXT:
1880 //      case META_SETVIEWPORTORG:
1881 //      case META_SETVIEWPORTEXT:
1882 //      case META_OFFSETWINDOWORG:
1883 //      case META_SCALEWINDOWEXT:
1884 //      case META_OFFSETVIEWPORTORG:
1885 //      case META_SCALEVIEWPORTEXT:
1886       case META_LINETO:
1887       {
1888         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_LINE, (double)lastX, (double)lastY,
1889                                (double)record->param1, (double)record->param2);
1890         m_ops.Append(op);
1891         break;
1892       }
1893       case META_MOVETO:
1894       {
1895         lastX = (double)record->param1;
1896         lastY = (double)record->param2;
1897         break;
1898       }
1899       case META_EXCLUDECLIPRECT:
1900       {
1901 /*
1902         wxMetaRecord *rec = new wxMetaRecord(META_EXCLUDECLIPRECT);
1903         rec->param4 = getshort(handle); // m_y2
1904         rec->param3 = getshort(handle); // x2
1905         rec->param2 = getshort(handle); // y1
1906         rec->param1 = getshort(handle); // x1
1907 */
1908         break;
1909       }
1910       case META_INTERSECTCLIPRECT:
1911       {
1912 /*
1913         rec->param4 = getshort(handle); // m_y2
1914         rec->param3 = getshort(handle); // x2
1915         rec->param2 = getshort(handle); // y1
1916         rec->param1 = getshort(handle); // x1
1917 */
1918         break;
1919       }
1920 //      case META_ARC: // DO!!!
1921       case META_ELLIPSE:
1922       {
1923         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_ELLIPSE,
1924                                (double)record->param1, (double)record->param2,
1925                                (double)(record->param3 - record->param1),
1926                                (double)(record->param4 - record->param2));
1927         m_ops.Append(op);
1928         break;
1929       }
1930 //      case META_FLOODFILL:
1931 //      case META_PIE: // DO!!!
1932       case META_RECTANGLE:
1933       {
1934         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_RECT,
1935                                (double)record->param1, (double)record->param2,
1936                                (double)(record->param3 - record->param1),
1937                                (double)(record->param4 - record->param2));
1938         m_ops.Append(op);
1939         break;
1940       }
1941       case META_ROUNDRECT:
1942       {
1943         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_ROUNDED_RECT,
1944               (double)record->param1, (double)record->param2,
1945               (double)(record->param3 - record->param1),
1946               (double)(record->param4 - record->param2), (double)record->param5);
1947         m_ops.Append(op);
1948         break;
1949       }
1950 //      case META_PATBLT:
1951 //      case META_SAVEDC:
1952       case META_SETPIXEL:
1953       {
1954         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_POINT,
1955               (double)record->param1, (double)record->param2,
1956               0.0, 0.0);
1957
1958 //        SHOULD SET THE COLOUR - SET PEN?
1959 //        rec->param3 = getint(handle);   // COLORREF
1960         m_ops.Append(op);
1961         break;
1962       }
1963 //      case META_OFFSETCLIPRGN:
1964       case META_TEXTOUT:
1965       {
1966         wxOpDraw *op = new wxOpDraw(DRAWOP_DRAW_TEXT,
1967               (double)record->param1, (double)record->param2,
1968               0.0, 0.0, 0.0, record->stringParam);
1969         m_ops.Append(op);
1970         break;
1971       }
1972 //      case META_BITBLT:
1973 //      case META_STRETCHBLT:
1974       case META_POLYGON:
1975       {
1976         int n = (int)record->param1;
1977         wxRealPoint *newPoints = new wxRealPoint[n];
1978         for (int i = 0; i < n; i++)
1979         {
1980           newPoints[i].x = record->points[i].x;
1981           newPoints[i].y = record->points[i].y;
1982         }
1983
1984         wxOpPolyDraw *op = new wxOpPolyDraw(DRAWOP_DRAW_POLYGON, n, newPoints);
1985         m_ops.Append(op);
1986         break;
1987       }
1988       case META_POLYLINE:
1989       {
1990         int n = (int)record->param1;
1991         wxRealPoint *newPoints = new wxRealPoint[n];
1992         for (int i = 0; i < n; i++)
1993         {
1994           newPoints[i].x = record->points[i].x;
1995           newPoints[i].y = record->points[i].y;
1996         }
1997
1998         wxOpPolyDraw *op = new wxOpPolyDraw(DRAWOP_DRAW_POLYLINE, n, newPoints);
1999         m_ops.Append(op);
2000         break;
2001       }
2002 //      case META_ESCAPE:
2003 //      case META_RESTOREDC:
2004 //      case META_FILLREGION:
2005 //      case META_FRAMEREGION:
2006 //      case META_INVERTREGION:
2007 //      case META_PAINTREGION:
2008 //      case META_SELECTCLIPREGION: // DO THIS!
2009       case META_SELECTOBJECT:
2010       {
2011         // The pen, brush etc. has already been created when the metafile
2012         // was read in, so we don't create it - we set it.
2013         wxNode *recNode = metaFile->gdiObjects.Item((int)record->param2);
2014         if (recNode)
2015         {
2016           wxMetaRecord *gdiRec = (wxMetaRecord *)recNode->GetData();
2017           if (gdiRec && (gdiRec->param1 != 0))
2018           {
2019             wxObject *obj = (wxObject *)gdiRec->param1;
2020             if (obj->IsKindOf(CLASSINFO(wxPen)))
2021             {
2022               wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_PEN, this, (int)record->param2);
2023               m_ops.Append(op);
2024             }
2025             else if (obj->IsKindOf(CLASSINFO(wxBrush)))
2026             {
2027               wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_BRUSH, this, (int)record->param2);
2028               m_ops.Append(op);
2029             }
2030             else if (obj->IsKindOf(CLASSINFO(wxFont)))
2031             {
2032               wxOpSetGDI *op = new wxOpSetGDI(DRAWOP_SET_FONT, this, (int)record->param2);
2033               m_ops.Append(op);
2034             }
2035           }
2036         }
2037         break;
2038       }
2039 //      case META_SETTEXTALIGN:
2040 //      case META_DRAWTEXT:
2041 //      case META_CHORD:
2042 //      case META_SETMAPPERFLAGS:
2043 //      case META_EXTTEXTOUT:
2044 //      case META_SETDIBTODEV:
2045 //      case META_SELECTPALETTE:
2046 //      case META_REALIZEPALETTE:
2047 //      case META_ANIMATEPALETTE:
2048 //      case META_SETPALENTRIES:
2049 //      case META_POLYPOLYGON:
2050 //      case META_RESIZEPALETTE:
2051 //      case META_DIBBITBLT:
2052 //      case META_DIBSTRETCHBLT:
2053       case META_DIBCREATEPATTERNBRUSH:
2054       {
2055         // Place holder
2056         m_gdiObjects.Append(NULL);
2057         break;
2058       }
2059 //      case META_STRETCHDIB:
2060 //      case META_EXTFLOODFILL:
2061 //      case META_RESETDC:
2062 //      case META_STARTDOC:
2063 //      case META_STARTPAGE:
2064 //      case META_ENDPAGE:
2065 //      case META_ABORTDOC:
2066 //      case META_ENDDOC:
2067 //      case META_DELETEOBJECT: // DO!!
2068       case META_CREATEPALETTE:
2069       {
2070         // Place holder
2071         m_gdiObjects.Append(NULL);
2072         break;
2073       }
2074       case META_CREATEBRUSH:
2075       {
2076         // Place holder
2077         m_gdiObjects.Append(NULL);
2078         break;
2079       }
2080       case META_CREATEPATTERNBRUSH:
2081       {
2082         // Place holder
2083         m_gdiObjects.Append(NULL);
2084         break;
2085       }
2086       case META_CREATEPENINDIRECT:
2087       {
2088         // The pen is created when the metafile is read in.
2089         // We keep track of all the GDI objects needed for this
2090         // image so when reading the wxDrawnShape from file,
2091         // we can read in all the GDI objects, then refer
2092         // to them by an index starting from zero thereafter.
2093         m_gdiObjects.Append((wxObject *)record->param1);
2094         break;
2095       }
2096       case META_CREATEFONTINDIRECT:
2097       {
2098         m_gdiObjects.Append((wxObject *)record->param1);
2099         break;
2100       }
2101       case META_CREATEBRUSHINDIRECT:
2102       {
2103         // Don't have to do anything here: the pen is created
2104         // when the metafile is read in.
2105         m_gdiObjects.Append((wxObject *)record->param1);
2106         break;
2107       }
2108       case META_CREATEBITMAPINDIRECT:
2109       {
2110         // Place holder
2111         m_gdiObjects.Append(NULL);
2112         break;
2113       }
2114       case META_CREATEBITMAP:
2115       {
2116         // Place holder
2117         m_gdiObjects.Append(NULL);
2118         break;
2119       }
2120       case META_CREATEREGION:
2121       {
2122         // Place holder
2123         m_gdiObjects.Append(NULL);
2124         break;
2125       }
2126       default:
2127       {
2128         break;
2129       }
2130     }
2131     node = node->GetNext();
2132   }
2133   double actualWidth = (double)fabs(metaFile->right - metaFile->left);
2134   double actualHeight = (double)fabs(metaFile->bottom - metaFile->top);
2135
2136   double initialScaleX = 1.0;
2137   double initialScaleY = 1.0;
2138
2139   double xoffset, yoffset;
2140
2141   // Translate so origin is at centre of rectangle
2142   if (metaFile->bottom > metaFile->top)
2143     yoffset = - (double)((metaFile->bottom - metaFile->top)/2.0);
2144   else
2145     yoffset = - (double)((metaFile->top - metaFile->bottom)/2.0);
2146
2147   if (metaFile->right > metaFile->left)
2148     xoffset = - (double)((metaFile->right - metaFile->left)/2.0);
2149   else
2150     xoffset = - (double)((metaFile->left - metaFile->right)/2.0);
2151
2152   Translate(xoffset, yoffset);
2153
2154   // Scale to a reasonable size (take the width of this wxDrawnShape
2155   // as a guide)
2156   if (actualWidth != 0.0)
2157   {
2158     initialScaleX = (double)((*rwidth) / actualWidth);
2159     initialScaleY = initialScaleX;
2160     (*rheight) = initialScaleY*actualHeight;
2161   }
2162   Scale(initialScaleX, initialScaleY);
2163
2164   m_width = (actualWidth*initialScaleX);
2165   m_height = *rheight;
2166
2167   delete metaFile;
2168   return true;
2169 }
2170
2171 // Scale to fit size
2172 void wxPseudoMetaFile::ScaleTo(double w, double h)
2173 {
2174   double scaleX = (double)(w/m_width);
2175   double scaleY = (double)(h/m_height);
2176
2177   // Do the scaling
2178   Scale(scaleX, scaleY);
2179 }
2180
2181 void wxPseudoMetaFile::GetBounds(double *boundMinX, double *boundMinY, double *boundMaxX, double *boundMaxY)
2182 {
2183   double maxX = (double) -99999.9;
2184   double maxY = (double) -99999.9;
2185   double minX = (double) 99999.9;
2186   double minY = (double) 99999.9;
2187
2188   wxNode *node = m_ops.GetFirst();
2189   while (node)
2190   {
2191     wxDrawOp *op = (wxDrawOp *)node->GetData();
2192     switch (op->GetOp())
2193     {
2194       case DRAWOP_DRAW_LINE:
2195       case DRAWOP_DRAW_RECT:
2196       case DRAWOP_DRAW_ROUNDED_RECT:
2197       case DRAWOP_DRAW_ELLIPSE:
2198       case DRAWOP_DRAW_POINT:
2199       case DRAWOP_DRAW_TEXT:
2200       {
2201         wxOpDraw *opDraw = (wxOpDraw *)op;
2202         if (opDraw->m_x1 < minX) minX = opDraw->m_x1;
2203         if (opDraw->m_x1 > maxX) maxX = opDraw->m_x1;
2204         if (opDraw->m_y1 < minY) minY = opDraw->m_y1;
2205         if (opDraw->m_y1 > maxY) maxY = opDraw->m_y1;
2206         if (op->GetOp() == DRAWOP_DRAW_LINE)
2207         {
2208           if (opDraw->m_x2 < minX) minX = opDraw->m_x2;
2209           if (opDraw->m_x2 > maxX) maxX = opDraw->m_x2;
2210           if (opDraw->m_y2 < minY) minY = opDraw->m_y2;
2211           if (opDraw->m_y2 > maxY) maxY = opDraw->m_y2;
2212         }
2213         else if (op->GetOp() == DRAWOP_DRAW_RECT ||
2214                  op->GetOp() == DRAWOP_DRAW_ROUNDED_RECT ||
2215                  op->GetOp() == DRAWOP_DRAW_ELLIPSE)
2216         {
2217           if ((opDraw->m_x1 + opDraw->m_x2) < minX) minX = (opDraw->m_x1 + opDraw->m_x2);
2218           if ((opDraw->m_x1 + opDraw->m_x2) > maxX) maxX = (opDraw->m_x1 + opDraw->m_x2);
2219           if ((opDraw->m_y1 + opDraw->m_y2) < minY) minY = (opDraw->m_y1 + opDraw->m_y2);
2220           if ((opDraw->m_y1 + opDraw->m_y2) > maxY) maxY = (opDraw->m_y1 + opDraw->m_y2);
2221         }
2222         break;
2223       }
2224       case DRAWOP_DRAW_ARC:
2225       {
2226         // TODO: don't yet know how to calculate the bounding box
2227         // for an arc. So pretend it's a line; to get a correct
2228         // bounding box, draw a blank rectangle first, of the correct
2229         // size.
2230         wxOpDraw *opDraw = (wxOpDraw *)op;
2231         if (opDraw->m_x1 < minX) minX = opDraw->m_x1;
2232         if (opDraw->m_x1 > maxX) maxX = opDraw->m_x1;
2233         if (opDraw->m_y1 < minY) minY = opDraw->m_y1;
2234         if (opDraw->m_y1 > maxY) maxY = opDraw->m_y1;
2235         if (opDraw->m_x2 < minX) minX = opDraw->m_x2;
2236         if (opDraw->m_x2 > maxX) maxX = opDraw->m_x2;
2237         if (opDraw->m_y2 < minY) minY = opDraw->m_y2;
2238         if (opDraw->m_y2 > maxY) maxY = opDraw->m_y2;
2239         break;
2240       }
2241       case DRAWOP_DRAW_POLYLINE:
2242       case DRAWOP_DRAW_POLYGON:
2243       case DRAWOP_DRAW_SPLINE:
2244       {
2245         wxOpPolyDraw *poly = (wxOpPolyDraw *)op;
2246         for (int i = 0; i < poly->m_noPoints; i++)
2247         {
2248           if (poly->m_points[i].x < minX) minX = poly->m_points[i].x;
2249           if (poly->m_points[i].x > maxX) maxX = poly->m_points[i].x;
2250           if (poly->m_points[i].y < minY) minY = poly->m_points[i].y;
2251           if (poly->m_points[i].y > maxY) maxY = poly->m_points[i].y;
2252         }
2253         break;
2254       }
2255       default:
2256         break;
2257     }
2258     node = node->GetNext();
2259   }
2260
2261   *boundMinX = minX;
2262   *boundMinY = minY;
2263   *boundMaxX = maxX;
2264   *boundMaxY = maxY;
2265 /*
2266   *w = (double)fabs(maxX - minX);
2267   *h = (double)fabs(maxY - minY);
2268 */
2269 }
2270
2271 // Calculate size from current operations
2272 void wxPseudoMetaFile::CalculateSize(wxDrawnShape* shape)
2273 {
2274   double boundMinX, boundMinY, boundMaxX, boundMaxY;
2275
2276   GetBounds(& boundMinX, & boundMinY, & boundMaxX, & boundMaxY);
2277
2278   SetSize(boundMaxX - boundMinX, boundMaxY - boundMinY);
2279
2280   if (shape)
2281   {
2282     shape->SetWidth(m_width);
2283     shape->SetHeight(m_height);
2284   }
2285 }
2286
2287 // Set of functions for drawing into a pseudo metafile.
2288 // They use integers, but doubles are used internally for accuracy
2289 // when scaling.
2290
2291 void wxPseudoMetaFile::DrawLine(const wxPoint& pt1, const wxPoint& pt2)
2292 {
2293     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_LINE,
2294           (double) pt1.x, (double) pt1.y, (double) pt2.x, (double) pt2.y);
2295
2296     m_ops.Append(theOp);
2297 }
2298
2299 void wxPseudoMetaFile::DrawRectangle(const wxRect& rect)
2300 {
2301     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_RECT,
2302           (double) rect.x, (double) rect.y, (double) rect.width, (double) rect.height);
2303
2304     m_ops.Append(theOp);
2305 }
2306
2307 void wxPseudoMetaFile::DrawRoundedRectangle(const wxRect& rect, double radius)
2308 {
2309     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_ROUNDED_RECT,
2310           (double) rect.x, (double) rect.y, (double) rect.width, (double) rect.height);
2311
2312     theOp->m_radius = radius;
2313
2314     m_ops.Append(theOp);
2315 }
2316
2317 void wxPseudoMetaFile::DrawEllipse(const wxRect& rect)
2318 {
2319     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_ELLIPSE,
2320           (double) rect.x, (double) rect.y, (double) rect.width, (double) rect.height);
2321
2322     m_ops.Append(theOp);
2323 }
2324
2325 void wxPseudoMetaFile::DrawArc(const wxPoint& centrePt, const wxPoint& startPt, const wxPoint& endPt)
2326 {
2327     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_ARC,
2328           (double) centrePt.x, (double) centrePt.y, (double) startPt.x, (double) startPt.y);
2329
2330     theOp->m_x3 = (double) endPt.x;
2331     theOp->m_y3 = (double) endPt.y;
2332
2333     m_ops.Append(theOp);
2334 }
2335
2336 void wxPseudoMetaFile::DrawEllipticArc(const wxRect& rect, double startAngle, double endAngle)
2337 {
2338     const double pi = 3.1415926535897932384626433832795 ;
2339
2340     double startAngleRadians = startAngle* (pi*2.0/360.0);
2341     double endAngleRadians = endAngle* (pi*2.0/360.0);
2342
2343     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_ELLIPTIC_ARC,
2344           (double) rect.x, (double) rect.y, (double) rect.width, (double) rect.height);
2345
2346     theOp->m_x3 = startAngleRadians;
2347     theOp->m_y3 = endAngleRadians;
2348
2349     m_ops.Append(theOp);
2350 }
2351
2352 void wxPseudoMetaFile::DrawPoint(const wxPoint& pt)
2353 {
2354     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_POINT,
2355           (double) pt.x, (double) pt.y, 0.0, 0.0);
2356
2357     m_ops.Append(theOp);
2358 }
2359
2360 void wxPseudoMetaFile::DrawText(const wxString& text, const wxPoint& pt)
2361 {
2362     wxOpDraw *theOp = new wxOpDraw(DRAWOP_DRAW_TEXT,
2363           (double) pt.x, (double) pt.y, 0.0, 0.0);
2364
2365     theOp->m_textString = text;
2366
2367     m_ops.Append(theOp);
2368 }
2369
2370 void wxPseudoMetaFile::DrawLines(int n, wxPoint pts[])
2371 {
2372     wxRealPoint* realPoints = new wxRealPoint[n];
2373     int i;
2374     for (i = 0; i < n; i++)
2375     {
2376         realPoints[i].x = pts[i].x;
2377         realPoints[i].y = pts[i].y;
2378     }
2379     wxOpPolyDraw* theOp = new wxOpPolyDraw(DRAWOP_DRAW_POLYLINE, n, realPoints);
2380     m_ops.Append(theOp);
2381 }
2382
2383 void wxPseudoMetaFile::DrawPolygon(int n, wxPoint pts[], int flags)
2384 {
2385     wxRealPoint* realPoints = new wxRealPoint[n];
2386     int i;
2387     for (i = 0; i < n; i++)
2388     {
2389         realPoints[i].x = pts[i].x;
2390         realPoints[i].y = pts[i].y;
2391     }
2392     wxOpPolyDraw* theOp = new wxOpPolyDraw(DRAWOP_DRAW_POLYGON, n, realPoints);
2393     m_ops.Append(theOp);
2394
2395     if (flags & oglMETAFLAGS_OUTLINE)
2396         m_outlineOp = (m_ops.GetCount() - 1);
2397 }
2398
2399 void wxPseudoMetaFile::DrawSpline(int n, wxPoint pts[])
2400 {
2401     wxRealPoint* realPoints = new wxRealPoint[n];
2402     int i;
2403     for (i = 0; i < n; i++)
2404     {
2405         realPoints[i].x = pts[i].x;
2406         realPoints[i].y = pts[i].y;
2407     }
2408     wxOpPolyDraw* theOp = new wxOpPolyDraw(DRAWOP_DRAW_SPLINE, n, realPoints);
2409     m_ops.Append(theOp);
2410 }
2411
2412 void wxPseudoMetaFile::SetClippingRect(const wxRect& rect)
2413 {
2414     /* wxOpSetClipping* theOp = */ new wxOpSetClipping(DRAWOP_SET_CLIPPING_RECT,
2415         (double) rect.x, (double) rect.y, (double) rect.width, (double) rect.height);
2416 }
2417
2418 void wxPseudoMetaFile::DestroyClippingRect()
2419 {
2420     wxOpSetClipping* theOp = new wxOpSetClipping(DRAWOP_DESTROY_CLIPPING_RECT,
2421         0.0, 0.0, 0.0, 0.0);
2422
2423     m_ops.Append(theOp);
2424 }
2425
2426 void wxPseudoMetaFile::SetPen(wxPen* pen, bool isOutline)
2427 {
2428     m_gdiObjects.Append(pen);
2429     int n = m_gdiObjects.GetCount();
2430
2431     wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_PEN, this, n - 1);
2432
2433     m_ops.Append(theOp);
2434
2435     if (isOutline)
2436     {
2437         m_outlineColours.Append((wxObject*) (n - 1));
2438     }
2439 }
2440
2441 void wxPseudoMetaFile::SetBrush(wxBrush* brush, bool isFill)
2442 {
2443     m_gdiObjects.Append(brush);
2444     int n = m_gdiObjects.GetCount();
2445
2446     wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_BRUSH, this, n - 1);
2447
2448     m_ops.Append(theOp);
2449
2450     if (isFill)
2451     {
2452         m_fillColours.Append((wxObject*) (n - 1));
2453     }
2454 }
2455
2456 void wxPseudoMetaFile::SetFont(wxFont* font)
2457 {
2458     m_gdiObjects.Append(font);
2459     int n = m_gdiObjects.GetCount();
2460
2461     wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_FONT, this, n - 1);
2462
2463     m_ops.Append(theOp);
2464 }
2465
2466 void wxPseudoMetaFile::SetTextColour(const wxColour& colour)
2467 {
2468    wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_TEXT_COLOUR, this, 0);
2469    theOp->m_r = colour.Red();
2470    theOp->m_g = colour.Green();
2471    theOp->m_b = colour.Blue();
2472
2473    m_ops.Append(theOp);
2474 }
2475
2476 void wxPseudoMetaFile::SetBackgroundColour(const wxColour& colour)
2477 {
2478    wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_BK_COLOUR, this, 0);
2479    theOp->m_r = colour.Red();
2480    theOp->m_g = colour.Green();
2481    theOp->m_b = colour.Blue();
2482
2483    m_ops.Append(theOp);
2484 }
2485
2486 void wxPseudoMetaFile::SetBackgroundMode(int mode)
2487 {
2488    wxOpSetGDI* theOp = new wxOpSetGDI(DRAWOP_SET_BK_MODE, this, 0, mode);
2489
2490    m_ops.Append(theOp);
2491 }
2492