contrib/src/canvas/canvas.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        canvas.cpp
   3 // Author:      Robert Roebling
   4 // Created:     XX/XX/XX
   5 // Copyright:   2000 (c) Robert Roebling
   6 // Licence:     wxWindows Licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 #ifdef __GNUG__
  10     #pragma implementation "canvas.cpp"
  11 #endif
  12
  13 // For compilers that support precompilation, includes "wx/wx.h".
  14 #include "wx/wxprec.h"
  15
  16 #ifdef __BORLANDC__
  17     #pragma hdrstop
  18 #endif
  19
  20 #include "wx/canvas/canvas.h"
  21 #include "wx/canvas/polygon.h"
  22 #include "wx/canvas/liner.h"
  23
  24 #ifdef __WXGTK__
  25     #include <gtk/gtk.h>
  26     #include <gdk/gdkrgb.h>
  27     #include "wx/gtk/win_gtk.h"
  28 #endif
  29
  30 #ifndef wxUSE_FREETYPE
  31     #define wxUSE_FREETYPE 0
  32 #endif
  33
  34 #if wxUSE_FREETYPE
  35     #include <freetype/freetype.h>
  36 #endif
  37
  38 //#define CANVASDEBUG
  39
  40 //----------------------------------------------------------------------------
  41 // globals
  42 //----------------------------------------------------------------------------
  43
  44 const double pi = 3.1415926535;
  45
  46 #if wxUSE_FREETYPE
  47 FT_Library g_freetypeLibrary;
  48 #endif
  49
  50 //----------------------------------------------------------------------------
  51 // wxCanvasObject
  52 //----------------------------------------------------------------------------
  53
  54 wxCanvasObject::wxCanvasObject()
  55 {
  56     // the default event handler is just this object
  57     m_eventHandler=this;
  58     m_admin = NULL;
  59     m_isControl = FALSE;
  60     m_isVector = FALSE;
  61     m_isImage = FALSE;
  62     m_visible  = TRUE;
  63     m_dragmode = DRAG_ONTOP;
  64 //  handy when debugging
  65 //  m_dragmode = DRAG_RECTANGLE;
  66     m_dragable = TRUE;
  67 }
  68
  69 bool wxCanvasObject::ProcessCanvasObjectEvent(wxEvent& event)
  70 {
  71     return m_eventHandler->ProcessEvent(event);
  72 }
  73
  74 void wxCanvasObject::PushEventHandler(wxEvtHandler *handler)
  75 {
  76     handler->SetNextHandler(GetEventHandler());
  77     m_eventHandler=handler;
  78 }
  79
  80 wxEvtHandler *wxCanvasObject::PopEventHandler(bool deleteHandler)
  81 {
  82     wxEvtHandler *handlerA = m_eventHandler;
  83     if ( handlerA )
  84     {
  85         wxEvtHandler *handlerB = handlerA->GetNextHandler();
  86         handlerA->SetNextHandler((wxEvtHandler *)NULL);
  87         m_eventHandler=handlerB;
  88         if ( deleteHandler )
  89         {
  90             delete handlerA;
  91             handlerA = (wxEvtHandler *)NULL;
  92         }
  93     }
  94
  95     return handlerA;
  96 }
  97
  98 void wxCanvasObject::AppendEventHandler(wxEvtHandler *handler)
  99 {
 100     GetEventHandler()->SetNextHandler(handler);
 101 }
 102
 103 wxEvtHandler *wxCanvasObject::RemoveLastEventHandler(bool deleteHandler)
 104 {
 105     //always the first in the row
 106     wxEvtHandler *handlerA = m_eventHandler;
 107     wxEvtHandler *handlerB=handlerA;
 108     //goto the end
 109     while ( handlerA->GetNextHandler() )
 110     {
 111         handlerB = handlerA;
 112         handlerA = handlerA->GetNextHandler();
 113     }
 114
 115     handlerB->SetNextHandler((wxEvtHandler *)NULL);
 116     if ( deleteHandler )
 117     {
 118         delete handlerA;
 119     }
 120
 121     return GetEventHandler();
 122 }
 123
 124 wxRect wxCanvasObject::GetAbsoluteArea(const wxTransformMatrix& cworld)
 125 {
 126     wxBoundingBox tmp=m_bbox;
 127     tmp.MapBbox(cworld);
 128
 129     int x1 = m_admin->LogicalToDeviceX( tmp.GetMinX() );
 130     int y1 = m_admin->LogicalToDeviceY( tmp.GetMinY() );
 131     int x2 = m_admin->LogicalToDeviceX( tmp.GetMaxX() );
 132     int y2 = m_admin->LogicalToDeviceY( tmp.GetMaxY() );
 133
 134     if (x1 > x2)
 135     {
 136         int tmp = x1;
 137         x1 = x2;
 138         x2 = tmp;
 139     }
 140     if (y1 > y2)
 141     {
 142         int tmp = y1;
 143         y1 = y2;
 144         y2 = tmp;
 145     }
 146
 147     wxRect tmparea;
 148     tmparea.x = x1;
 149     tmparea.y = y1;
 150     tmparea.width = x2-x1;    // FIXME +1 ?
 151     tmparea.height = y2-y1;   // FIXME +1 ?
 152
 153     return tmparea;
 154 }
 155
 156 void wxCanvasObject::MoveAbsolute( double x, double y )
 157 {
 158     //save old position of boundingbox
 159     double oldx = GetXMin();
 160     double oldy = GetYMin();
 161     double w = m_bbox.GetWidth();
 162     double h = m_bbox.GetHeight();
 163
 164     SetPosXY(x,y);
 165
 166     double newx=GetXMin();
 167     double newy=GetYMin();
 168
 169     double leftu,rightu,bottomu,topu ;
 170     leftu   = wxMin (oldx, newx ) ;
 171     rightu  = wxMax (oldx + w, newx + w) ;
 172     topu    = wxMin (oldy, newy) ;
 173     bottomu = wxMax (oldy + h, newy + h) ;
 174
 175     if ( rightu - leftu < 2*w && bottomu - topu < 2*h )
 176     {
 177         m_admin->Update( this,leftu, topu, rightu - leftu, bottomu - topu);
 178     }
 179     else
 180     {
 181         m_admin->Update( this, oldx, oldy, w, h );
 182         m_admin->Update( this, newx, newy, w, h );
 183     }
 184 }
 185
 186 void wxCanvasObject::MoveRelative( double x, double y )
 187 {
 188     //save old position of boundingbox
 189     double oldx = GetXMin();
 190     double oldy = GetYMin();
 191     double w = m_bbox.GetWidth();
 192     double h = m_bbox.GetHeight();
 193
 194     TransLate(x,y);
 195
 196     double newx=GetXMin();
 197     double newy=GetYMin();
 198
 199     double leftu,rightu,bottomu,topu ;
 200     leftu   = wxMin (oldx, newx ) ;
 201     rightu  = wxMax (oldx + w, newx + w) ;
 202     topu    = wxMin (oldy, newy) ;
 203     bottomu = wxMax (oldy + h, newy + h) ;
 204
 205     if ( rightu - leftu < 2*w && bottomu - topu < 2*h )
 206     {
 207         m_admin->Update( this,leftu, topu, rightu - leftu, bottomu - topu);
 208     }
 209     else
 210     {
 211         m_admin->Update( this, oldx, oldy, w, h );
 212         m_admin->Update( this, newx, newy, w, h );
 213     }
 214 }
 215
 216
 217 void wxCanvasObject::DragStart()
 218 {
 219     if (m_dragmode == DRAG_RECTANGLE)
 220     {
 221         this->SetVisible(FALSE);
 222         wxTransformMatrix help;
 223         double x = GetXMin();
 224         double y = GetYMin();
 225         double w = m_bbox.GetWidth();
 226         double h = m_bbox.GetHeight();
 227         m_admin->Update( this, x, y, w, h );
 228         m_admin->UpdateNow();
 229
 230         wxRect recold=GetAbsoluteArea(help);
 231         wxClientDC dc(m_admin->GetActive());
 232         dc.SetPen(*wxBLACK_PEN);
 233         dc.SetBrush(*wxTRANSPARENT_BRUSH);
 234         dc.SetLogicalFunction(wxINVERT);
 235         dc.DrawRectangle(recold);
 236         dc.SetBrush(wxNullBrush);
 237         dc.SetPen(wxNullPen);
 238     }
 239     else
 240     {
 241         this->SetVisible(FALSE);
 242         wxTransformMatrix help;
 243         double x = GetXMin();
 244         double y = GetYMin();
 245         double w = m_bbox.GetWidth();
 246         double h = m_bbox.GetHeight();
 247
 248         wxRect recnew=GetAbsoluteArea(help);
 249
 250          //redraw in buffer what should be there without this object
 251         m_admin->Update( this, x, y, w, h );
 252         m_admin->GetActive()->Freeze();
 253
 254         //save the drawing (without the object itself to a bitmap)
 255         m_atnewpos = wxBitmap(recnew.width,recnew.height);
 256         wxMemoryDC dcm;
 257         dcm.SelectObject(*m_admin->GetActive()->GetBuffer());
 258         wxMemoryDC tmp;
 259         tmp.SelectObject(m_atnewpos);
 260         tmp.Blit(0,0,recnew.width,recnew.height,&dcm,recnew.x,recnew.y,wxCOPY,FALSE);
 261         tmp.SelectObject(wxNullBitmap);
 262         dcm.SelectObject(wxNullBitmap);
 263     }
 264 }
 265
 266
 267 void wxCanvasObject::DragRelative( double x, double y)
 268 {
 269     if (m_dragmode == DRAG_RECTANGLE)
 270     {
 271         wxTransformMatrix help;
 272
 273         wxRect recold=GetAbsoluteArea(help);
 274
 275         TransLate(x,y);
 276
 277         wxRect recnew=GetAbsoluteArea(help);
 278
 279         wxClientDC dc(m_admin->GetActive());
 280         dc.SetPen(*wxBLACK_PEN);
 281         dc.SetBrush(*wxTRANSPARENT_BRUSH);
 282         dc.SetLogicalFunction(wxINVERT);
 283         dc.DrawRectangle(recold);
 284         dc.DrawRectangle(recnew);
 285         dc.SetBrush(wxNullBrush);
 286         dc.SetPen(wxNullPen);
 287     }
 288     else
 289     {
 290         wxClientDC dc(m_admin->GetActive());
 291         wxMemoryDC tmp;
 292
 293         wxTransformMatrix help;
 294         wxRect recold=GetAbsoluteArea(help);
 295
 296         //restore what was there (without the object itself)
 297         wxMemoryDC dcm;
 298         dcm.SelectObject(*m_admin->GetActive()->GetBuffer());
 299         tmp.SelectObject(m_atnewpos);
 300         dcm.Blit(recold.x,recold.y,recold.width,recold.height,&tmp,0,0,wxCOPY,FALSE);
 301
 302         TransLate(x,y);
 303
 304         wxRect recnew=GetAbsoluteArea(help);
 305
 306         //save the contents of the buffer at the new position
 307         tmp.Blit(0,0,recnew.width,recnew.height,&dcm,recnew.x,recnew.y,wxCOPY,FALSE);
 308         tmp.SelectObject(wxNullBitmap);
 309
 310         //m_atnewpos = m_admin->GetActive()->GetBuffer()->GetSubBitmap( recnew );
 311
 312         this->SetVisible(TRUE);
 313         //redraw object into the buffer
 314         m_admin->GetActive()->SetDC(&dcm);
 315         Render(&help,recnew.x,recnew.y,recnew.width,recnew.height);
 316
 317         //draw the union or seperate to the canvas
 318         double leftu,rightu,bottomu,topu ;
 319         leftu   = wxMin (recold.x, recnew.x ) ;
 320         rightu  = wxMax (recold.x + recold.width, recnew.x + recnew.width ) ;
 321         topu    = wxMin (recold.y, recnew.y) ;
 322         bottomu = wxMax (recold.y + recold.height, recnew.y + recnew.height) ;
 323
 324         if ( rightu - leftu < 2*recold.width && bottomu - topu < 2*recold.height)
 325         {
 326             dc.Blit(leftu,topu,rightu - leftu,bottomu - topu,&dcm,leftu,topu,wxCOPY,FALSE);
 327         }
 328         else
 329         {
 330             //do them seperate
 331             //first redraw what should be at the old position in the canvas
 332             dc.Blit(recold.x,recold.y,recold.width,recold.height,&dcm,recold.x,recold.y,wxCOPY,FALSE);
 333             //blit the new position of the object to the canvas
 334             dc.Blit(recnew.x,recnew.y,recnew.width,recnew.height,&dcm,recnew.x,recnew.y,wxCOPY,FALSE);
 335         }
 336         dcm.SelectObject(wxNullBitmap);
 337         this->SetVisible(FALSE);
 338     }
 339 }
 340
 341
 342 void wxCanvasObject::DragEnd()
 343 {
 344     m_atnewpos = wxBitmap(0,0);
 345     m_admin->GetActive()->Thaw();
 346     this->SetVisible(TRUE);
 347     double x = GetXMin();
 348     double y = GetYMin();
 349     double w = m_bbox.GetWidth();
 350     double h = m_bbox.GetHeight();
 351     m_admin->Update( this, x, y, w, h );
 352     m_admin->UpdateNow();
 353 }
 354
 355 wxCanvasObject* wxCanvasObject::IsHitWorld( double x, double y, double margin )
 356 {
 357     if ((x >= m_bbox.GetMinX()-margin) &&
 358         (x <= m_bbox.GetMaxX()+margin) &&
 359         (y >= m_bbox.GetMinY()-margin) &&
 360         (y <= m_bbox.GetMaxY()+margin))
 361     {
 362         return this;
 363     }
 364
 365     return (wxCanvasObject*) NULL;
 366 }
 367
 368 wxCanvasObject* wxCanvasObject::Contains( wxCanvasObject* obj )
 369 {
 370     if (obj == this)
 371         return this;
 372
 373     return (wxCanvasObject*) NULL;
 374 }
 375
 376 void wxCanvasObject::CaptureMouse()
 377 {
 378     m_admin->GetActive()->SetCaptureMouse( this );
 379 }
 380
 381 void wxCanvasObject::ReleaseMouse()
 382 {
 383     m_admin->GetActive()->SetCaptureMouse( NULL );
 384 }
 385
 386 bool wxCanvasObject::IsCapturedMouse()
 387 {
 388     return (m_admin->GetActive()->GetCaptured() == this);
 389 }
 390
 391
 392 void wxCanvasObject::Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height )
 393 {
 394 }
 395
 396 void wxCanvasObject::CalcBoundingBox()
 397 {
 398 }
 399
 400 void wxCanvasObject::WriteSVG( wxTextOutputStream &stream )
 401 {
 402 }
 403
 404 //----------------------------------------------------------------------------
 405 // wxCanvasObjectGroup
 406 //----------------------------------------------------------------------------
 407
 408 wxCanvasObjectGroup::wxCanvasObjectGroup(double x, double y)
 409 {
 410     lworld.Translate(x,y);
 411     //no objects make the bounding box the x,y and take care of it later
 412     m_bbox.Expand(x,y);
 413 }
 414
 415 wxCanvasObjectGroup::~wxCanvasObjectGroup()
 416 {
 417 }
 418
 419 void wxCanvasObjectGroup::PushEventHandler(wxEvtHandler *handler)
 420 {
 421     wxCanvasObject::PushEventHandler(handler);
 422     wxNode *node = m_objects.First();
 423     while (node)
 424     {
 425         wxCanvasObject *obj = (wxCanvasObject*) node->Data();
 426
 427         obj->PushEventHandler(handler);
 428
 429         node = node->Next();
 430     }
 431 }
 432
 433 wxEvtHandler *wxCanvasObjectGroup::PopEventHandler(bool deleteHandler)
 434 {
 435     wxNode *node = m_objects.First();
 436     while (node)
 437     {
 438         wxCanvasObject *obj = (wxCanvasObject*) node->Data();
 439
 440         obj->PopEventHandler(deleteHandler);
 441
 442         node = node->Next();
 443     }
 444     return wxCanvasObject::PopEventHandler(deleteHandler);
 445 }
 446
 447 void wxCanvasObjectGroup::AppendEventHandler(wxEvtHandler *handler)
 448 {
 449     wxCanvasObject::AppendEventHandler(handler);
 450     wxNode *node = m_objects.First();
 451     while (node)
 452     {
 453         wxCanvasObject *obj = (wxCanvasObject*) node->Data();
 454
 455         obj->AppendEventHandler(handler);
 456
 457         node = node->Next();
 458     }
 459 }
 460
 461 wxEvtHandler *wxCanvasObjectGroup::RemoveLastEventHandler(bool deleteHandler)
 462 {
 463     wxNode *node = m_objects.First();
 464     while (node)
 465     {
 466         wxCanvasObject *obj = (wxCanvasObject*) node->Data();
 467
 468         obj->RemoveLastEventHandler(deleteHandler);
 469
 470         node = node->Next();
 471     }
 472     return wxCanvasObject::RemoveLastEventHandler(deleteHandler);
 473 }
 474
 475 void wxCanvasObjectGroup::TransLate( double x, double y )
 476 {
 477     lworld.Translate(x,y);
 478     CalcBoundingBox();
 479 }
 480
 481 void wxCanvasObjectGroup::SetAdmin(wxCanvasAdmin* admin)
 482 {
 483     m_admin=admin;
 484     wxNode *node = m_objects.First();
 485     while (node)
 486     {
 487         wxCanvasObject *obj = (wxCanvasObject*) node->Data();
 488
 489         obj->SetAdmin(admin);
 490
 491         node = node->Next();
 492     }
 493 }
 494
 495 void wxCanvasObjectGroup::DeleteContents( bool flag)
 496 {
 497     m_objects.DeleteContents( flag );
 498     m_bbox.SetValid(FALSE);
 499     CalcBoundingBox();
 500 }
 501
 502 void wxCanvasObjectGroup::Prepend( wxCanvasObject* obj )
 503 {
 504     m_objects.Insert( obj );
 505     if (m_objects.First())
 506     {
 507         m_bbox.Expand(obj->GetBbox());
 508     }
 509     else
 510     {
 511         m_bbox.SetValid(FALSE);
 512         CalcBoundingBox();
 513     }
 514 }
 515
 516 void wxCanvasObjectGroup::Append( wxCanvasObject* obj )
 517 {
 518     m_objects.Append( obj );
 519     if (m_objects.First())
 520     {
 521         m_bbox.Expand(obj->GetBbox());
 522     }
 523     else
 524     {
 525         m_bbox.SetValid(FALSE);
 526         CalcBoundingBox();
 527     }
 528 }
 529
 530 void wxCanvasObjectGroup::Insert( size_t before, wxCanvasObject* obj )
 531 {
 532     m_objects.Insert( before, obj );
 533     m_bbox.SetValid(FALSE);
 534     if (m_objects.First())
 535     {
 536         m_bbox.Expand(obj->GetBbox());
 537     }
 538     else
 539     {
 540         m_bbox.SetValid(FALSE);
 541         CalcBoundingBox();
 542     }
 543 }
 544
 545 void wxCanvasObjectGroup::Remove( wxCanvasObject* obj )
 546 {
 547     m_objects.DeleteObject( obj );
 548     m_bbox.SetValid(FALSE);
 549     CalcBoundingBox();
 550 }
 551
 552 void wxCanvasObjectGroup::CalcBoundingBox()
 553 {
 554     m_bbox.SetValid(FALSE);
 555     wxNode *node = m_objects.First();
 556     while (node)
 557     {
 558         wxCanvasObject *obj = (wxCanvasObject*) node->Data();
 559
 560
 561         obj->CalcBoundingBox();
 562         wxBoundingBox tmp;
 563         tmp=obj->GetBbox();
 564         tmp.MapBbox(lworld);
 565
 566         m_bbox.Expand( tmp );
 567         node = node->Next();
 568     }
 569 }
 570
 571 void wxCanvasObjectGroup::Render(wxTransformMatrix* cworld, int x, int y, int width, int height )
 572 {
 573     if (!m_visible) return;
 574
 575     wxTransformMatrix backup = *cworld;
 576     *cworld *= lworld;
 577
 578     wxNode *node = m_objects.First();
 579
 580     if (!node) return;
 581
 582
 583 #ifdef CANVASDEBUG
 584     wxRect absarea=GetAbsoluteArea(*cworld);
 585     wxDC *dc = m_admin->GetActive()->GetDC();
 586     dc->SetPen(*wxBLACK_PEN);
 587     dc->SetBrush(*wxTRANSPARENT_BRUSH);
 588     dc->DrawRectangle( absarea.x , absarea.y , absarea.width , absarea.height );
 589     dc->SetBrush(wxNullBrush);
 590     dc->SetPen(wxNullPen);
 591 #endif
 592     //TODO the next will only work if all boundingboxes stay up to date (problem when mowing currently
 593     /*
 594     if (! ( wxMax(absarea.x, x) < wxMin(absarea.x + absarea.width , x + width ) &&
 595             wxMax(absarea.y, y) < wxMin(absarea.y + absarea.height , y + height )
 596           )
 597        )
 598         return;
 599     */
 600
 601     // cycle through all objects
 602     while (node)
 603     {
 604         wxCanvasObject *obj = (wxCanvasObject*) node->Data();
 605
 606         if (!obj->IsControl() && obj->GetVisible())
 607         {
 608
 609             //get area at the absolute position
 610             wxRect absareaobject = obj->GetAbsoluteArea(*cworld);
 611
 612             // If we have 10.000 objects, we will go through
 613             // this 10.000 times for each update, so we have
 614             // to optimise carefully.
 615             int clip_x = absareaobject.x;
 616             int clip_width = absareaobject.width;
 617             if (clip_x < x)
 618             {
 619                 clip_width -= x-clip_x;
 620                 clip_x = x;
 621             }
 622             if (clip_width > 0)
 623             {
 624                 if (clip_x + clip_width > x + width)
 625                     clip_width = x+width-clip_x;
 626
 627                 if (clip_width > 0)
 628                 {
 629                     int clip_y = absareaobject.y;
 630                     int clip_height = absareaobject.height;
 631                     if (clip_y < y)
 632                     {
 633                         clip_height -= y-clip_y;
 634                         clip_y = y;
 635                     }
 636                     if (clip_height > 0)
 637                     {
 638                         if (clip_y + clip_height > y + height)
 639                             clip_height = y+height-clip_y;
 640
 641                         if (clip_height > 0)
 642                         {
 643                             obj->Render(cworld, clip_x, clip_y, clip_width, clip_height );
 644                         }
 645                     }
 646                 }
 647             }
 648         }
 649
 650         node = node->Next();
 651     }
 652     *cworld = backup;
 653 }
 654
 655 void wxCanvasObjectGroup::WriteSVG( wxTextOutputStream &stream )
 656 {
 657 }
 658
 659 wxCanvasObject* wxCanvasObjectGroup::IsHitWorld( double x, double y, double margin )
 660 {
 661     //KKKfirst check if within bbox
 662     //will only work if they are always uptodate
 663     //if (!m_bbox.PointInBox(x,y,margin))
 664     //    return (wxCanvasObject*) NULL;
 665
 666     wxTransformMatrix inverse =  lworld;
 667     double xh,yh;
 668     inverse.Invert();
 669     inverse.TransformPoint(x,y,xh,yh);
 670
 671     wxCanvasObject *obj=0;
 672     wxNode *node = m_objects.Last();
 673     while (node)
 674     {
 675         obj=(wxCanvasObject*) node->Data();
 676
 677         if (!obj->IsControl() )
 678         {
 679             if (obj->IsHitWorld(x,y,margin))
 680             {
 681                 return obj;
 682             }
 683         }
 684         node = node->Previous();
 685     }
 686
 687     return (wxCanvasObject*) NULL;
 688 }
 689
 690 wxCanvasObject* wxCanvasObjectGroup::Contains( wxCanvasObject* obj )
 691 {
 692     wxCanvasObject* cobj;
 693     wxNode *node = m_objects.First();
 694     while (node)
 695     {
 696         cobj=(wxCanvasObject*) node->Data();
 697
 698         if (cobj->Contains(obj))
 699         {
 700             return obj;
 701         }
 702         node = node->Next();
 703     }
 704
 705     return (wxCanvasObject*) NULL;
 706 }
 707
 708 int wxCanvasObjectGroup::IndexOf( wxCanvasObject* obj )
 709 {
 710     return m_objects.IndexOf( obj );
 711 }
 712
 713 //----------------------------------------------------------------------------
 714 // wxCanvasObjectRef
 715 //----------------------------------------------------------------------------
 716
 717 wxCanvasObjectRef::wxCanvasObjectRef(double x, double y, wxCanvasObject* obj)
 718    : wxCanvasObject()
 719 {
 720     lworld.Translate(x,y);
 721     m_obj = obj;
 722
 723     m_bbox.SetValid(FALSE);
 724     wxBoundingBox tmp;
 725     tmp=obj->GetBbox();
 726     tmp.MapBbox(lworld);
 727     m_bbox.Expand( tmp );
 728 }
 729
 730 void wxCanvasObjectRef::PushEventHandler(wxEvtHandler *handler)
 731 {
 732     wxCanvasObject::PushEventHandler(handler);
 733     m_obj->PushEventHandler(handler);
 734 }
 735
 736 wxEvtHandler *wxCanvasObjectRef::PopEventHandler(bool deleteHandler)
 737 {
 738     m_obj->PopEventHandler(deleteHandler);
 739     return wxCanvasObject::PopEventHandler(deleteHandler);
 740 }
 741
 742 void wxCanvasObjectRef::AppendEventHandler(wxEvtHandler *handler)
 743 {
 744     wxCanvasObject::AppendEventHandler(handler);
 745     m_obj->AppendEventHandler(handler);
 746 }
 747
 748 wxEvtHandler *wxCanvasObjectRef::RemoveLastEventHandler(bool deleteHandler)
 749 {
 750     m_obj->RemoveLastEventHandler(deleteHandler);
 751     return wxCanvasObject::RemoveLastEventHandler(deleteHandler);
 752 }
 753
 754 void wxCanvasObjectRef::TransLate( double x, double y )
 755 {
 756     lworld.Translate(x,y);
 757     CalcBoundingBox();
 758 }
 759
 760 wxCanvasObject* wxCanvasObjectRef::Contains( wxCanvasObject* obj )
 761 {
 762     if (obj == this || m_obj->Contains(obj))
 763         return this;
 764
 765     return (wxCanvasObject*) NULL;
 766 }
 767
 768
 769 void wxCanvasObjectRef::SetRotation(double rotation)
 770 {
 771     lworld.SetRotation(rotation);
 772     CalcBoundingBox();
 773 }
 774
 775 void wxCanvasObjectRef::SetScale(double scalex,double scaley)
 776 {
 777     lworld.Scale(scalex,scaley,lworld.GetValue(2,0),lworld.GetValue(2,1));
 778     CalcBoundingBox();
 779 }
 780
 781 void wxCanvasObjectRef::SetAdmin(wxCanvasAdmin* admin)
 782 {
 783     m_admin = admin;
 784     m_obj->SetAdmin(admin);
 785 }
 786
 787 void wxCanvasObjectRef::CalcBoundingBox()
 788 {
 789     m_bbox.SetValid(FALSE);
 790     m_obj->CalcBoundingBox();
 791
 792     wxBoundingBox tmp;
 793     tmp=m_obj->GetBbox();
 794     tmp.MapBbox(lworld);
 795     m_bbox.Expand( tmp );
 796 }
 797
 798 void wxCanvasObjectRef::Render(wxTransformMatrix* cworld, int x, int y, int width, int height )
 799 {
 800     if (!m_visible) return;
 801
 802     //get the absolute area (without the local matrix included)
 803     //the boundingbox is relative to the parent.
 804     wxRect absarea=GetAbsoluteArea(*cworld);
 805
 806     wxTransformMatrix backup = *cworld;
 807     *cworld *= lworld;
 808
 809 #ifdef CANVASDEBUG
 810     wxDC *dc = m_admin->GetActive()->GetDC();
 811     dc->SetPen(*wxBLACK_PEN);
 812     dc->SetBrush(*wxTRANSPARENT_BRUSH);
 813     dc->DrawRectangle( absarea.x , absarea.y , absarea.width , absarea.height );
 814     dc->SetBrush(wxNullBrush);
 815     dc->SetPen(wxNullPen);
 816 #endif
 817
 818     int clip_x = absarea.x;
 819     int clip_width = absarea.width;
 820     if (clip_x < x)
 821     {
 822         clip_width -= x-clip_x;
 823         clip_x = x;
 824     }
 825     if (clip_width > 0)
 826     {
 827         if (clip_x + clip_width > x + width)
 828             clip_width = x+width-clip_x;
 829
 830         if (clip_width > 0)
 831         {
 832             int clip_y = absarea.y;
 833             int clip_height = absarea.height;
 834             if (clip_y < y)
 835             {
 836                 clip_height -= y-clip_y;
 837                 clip_y = y;
 838             }
 839             if (clip_height > 0)
 840             {
 841                 if (clip_y + clip_height > y + height)
 842                     clip_height = y+height-clip_y;
 843
 844                 if (clip_height > 0)
 845                     m_obj->Render(cworld, clip_x, clip_y, clip_width, clip_height );
 846             }
 847         }
 848     }
 849
 850     *cworld = backup;
 851 }
 852
 853 void wxCanvasObjectRef::WriteSVG( wxTextOutputStream &stream )
 854 {
 855 }
 856
 857 wxCanvasObject* wxCanvasObjectRef::IsHitWorld( double x, double y, double margin )
 858 {
 859     //KKKfirst check if within bbox
 860     //will only work if they are always uptodate
 861     //if (!m_bbox.PointInBox(x,y,margin))
 862     //    return (wxCanvasObject*) NULL;
 863
 864     wxTransformMatrix inverse =  lworld;
 865     double xh,yh;
 866     inverse.Invert();
 867     inverse.TransformPoint(x,y,xh,yh);
 868
 869     if (m_obj->IsHitWorld(xh,yh,margin))
 870         return this;
 871
 872     return (wxCanvasObject*) NULL;
 873 }
 874
 875
 876
 877 //----------------------------------------------------------------------------
 878 // wxCanvasRect
 879 //----------------------------------------------------------------------------
 880
 881 wxCanvasRect::wxCanvasRect( double x, double y, double w, double h , double radius )
 882    : wxCanvasObject()
 883 {
 884     m_x = x;
 885     m_y = y;
 886     m_width = w;
 887     m_height = h;
 888     m_radius = radius;
 889
 890     m_brush = *wxBLACK_BRUSH;
 891     m_pen = *wxTRANSPARENT_PEN;
 892     CalcBoundingBox();
 893 }
 894
 895 void wxCanvasRect::TransLate( double x, double y )
 896 {
 897     m_x += x;
 898     m_y += y;
 899     CalcBoundingBox();
 900 }
 901
 902 void wxCanvasRect::CalcBoundingBox()
 903 {
 904     m_bbox.SetMin( m_x , m_y);
 905     m_bbox.SetMax( m_x + m_width ,m_y + m_height );
 906
 907     //include the pen width also
 908 //KKK    m_bbox.EnLarge(m_pen.GetWidth()+m_radius);
 909     m_bbox.EnLarge(m_pen.GetWidth()/2);
 910 }
 911
 912 void wxCanvasRect::Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height )
 913 {
 914     if (!m_visible) return;
 915
 916     if (cworld->GetRotation())
 917     {
 918         wxPoint *cpoints = new wxPoint[4];
 919         double x;
 920         double y;
 921         cworld->TransformPoint( m_x, m_y, x, y );
 922         cpoints[0].x = m_admin->LogicalToDeviceX(x);
 923         cpoints[0].y = m_admin->LogicalToDeviceY(y);
 924         cworld->TransformPoint( m_x , m_y + m_height, x, y );
 925         cpoints[1].x = m_admin->LogicalToDeviceX(x);
 926         cpoints[1].y = m_admin->LogicalToDeviceY(y);
 927         cworld->TransformPoint( m_x + m_width, m_y + m_height, x, y );
 928         cpoints[2].x = m_admin->LogicalToDeviceX(x);
 929         cpoints[2].y = m_admin->LogicalToDeviceY(y);
 930         cworld->TransformPoint( m_x + m_width, m_y , x, y );
 931         cpoints[3].x = m_admin->LogicalToDeviceX(x);
 932         cpoints[3].y = m_admin->LogicalToDeviceY(y);
 933
 934         wxDC *dc = m_admin->GetActive()->GetDC();
 935         dc->SetClippingRegion(clip_x, clip_y, clip_width, clip_height);
 936         dc->SetBrush(m_brush);
 937         int pw=m_pen.GetWidth();
 938         m_pen.SetWidth(m_admin->LogicalToDeviceXRel(pw));
 939         dc->SetPen(m_pen);
 940         dc->DrawPolygon(4, cpoints, 0,0,wxWINDING_RULE);
 941         delete [] cpoints;
 942         dc->SetBrush(wxNullBrush);
 943         dc->SetPen(wxNullPen);
 944         dc->DestroyClippingRegion();
 945         m_pen.SetWidth(pw);
 946     }
 947     else
 948     {
 949         wxDC *dc = m_admin->GetActive()->GetDC();
 950         dc->SetClippingRegion(clip_x, clip_y, clip_width, clip_height);
 951         dc->SetBrush(m_brush);
 952         int pw=m_pen.GetWidth();
 953         m_pen.SetWidth(m_admin->LogicalToDeviceXRel(pw));
 954         dc->SetPen(m_pen);
 955         //yes the whole not only the clipping region, because we have a pen also
 956         int x = m_admin->LogicalToDeviceX(cworld->GetValue(2,0) + m_x );
 957         int y = m_admin->LogicalToDeviceY(cworld->GetValue(2,1) + m_y );
 958         int w = m_admin->LogicalToDeviceXRel( m_width );
 959         int h = m_admin->LogicalToDeviceYRel( m_height );
 960         int r = m_admin->LogicalToDeviceYRel( m_radius );
 961         if (w > 0 && w < 1) w=1;
 962         if (w < 0 && w > -1) w=-1;
 963         if (h > 0 && h < 1) h=1;
 964         if (h < 0 && h > -1) h=-1;
 965         if (m_radius)
 966             dc->DrawRoundedRectangle( x,y,w,h,r);
 967         else
 968             dc->DrawRectangle( x,y,w,h);
 969         dc->SetBrush(wxNullBrush);
 970         dc->SetPen(wxNullPen);
 971         dc->DestroyClippingRegion();
 972         m_pen.SetWidth(pw);
 973     }
 974 }
 975
 976 void wxCanvasRect::WriteSVG( wxTextOutputStream &stream )
 977 {
 978 }
 979
 980 //----------------------------------------------------------------------------
 981 // wxCanvasCircle
 982 //----------------------------------------------------------------------------
 983
 984 wxCanvasCircle::wxCanvasCircle( double x, double y, double radius )
 985    : wxCanvasObject()
 986 {
 987     m_x = x;
 988     m_y = y;
 989     m_radius = radius;
 990
 991     m_brush = *wxBLACK_BRUSH;
 992     m_pen = *wxTRANSPARENT_PEN;
 993     CalcBoundingBox();
 994 }
 995
 996 void wxCanvasCircle::TransLate( double x, double y )
 997 {
 998     m_x += x;
 999     m_y += y;
1000     CalcBoundingBox();
1001 }
1002
1003 void wxCanvasCircle::CalcBoundingBox()
1004 {
1005     m_bbox.SetMin( m_x-m_radius , m_y-m_radius );
1006     m_bbox.SetMax( m_x+m_radius , m_y+m_radius );
1007
1008     //include the pen width also
1009     m_bbox.EnLarge(m_pen.GetWidth()/2);
1010 }
1011
1012 void wxCanvasCircle::Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height )
1013 {
1014     if (!m_visible) return;
1015
1016     wxDC *dc = m_admin->GetActive()->GetDC();
1017     dc->SetClippingRegion(clip_x, clip_y, clip_width, clip_height);
1018     dc->SetBrush(m_brush);
1019     int pw=m_pen.GetWidth();
1020     m_pen.SetWidth(m_admin->LogicalToDeviceXRel(pw));
1021     dc->SetPen(m_pen);
1022     //yes the whole not only the clipping region, because we have a pen also
1023     //and rotation on a circle is not important so only a shift with cworld
1024     int x = m_admin->LogicalToDeviceX(cworld->GetValue(2,0) + m_x );
1025     int y = m_admin->LogicalToDeviceY(cworld->GetValue(2,1) + m_y );
1026     int radius = m_admin->LogicalToDeviceXRel( m_radius );
1027     if (radius < 1) radius=1;
1028     dc->DrawCircle( x,y,radius);
1029     dc->SetBrush(wxNullBrush);
1030     dc->SetPen(wxNullPen);
1031     dc->DestroyClippingRegion();
1032     m_pen.SetWidth(pw);
1033 }
1034
1035 void wxCanvasCircle::WriteSVG( wxTextOutputStream &stream )
1036 {
1037 }
1038
1039 wxCanvasObject* wxCanvasCircle::IsHitWorld( double x, double y, double margin )
1040 {
1041     if ((x >= m_bbox.GetMinX()-margin) &&
1042         (x <= m_bbox.GetMaxX()+margin) &&
1043         (y >= m_bbox.GetMinY()-margin) &&
1044         (y <= m_bbox.GetMaxY()+margin)
1045        )
1046     {
1047         if (m_radius+m_pen.GetWidth()/2+margin > sqrt(pow(m_x-x,2)+pow(m_y-y,2)))
1048             return this;
1049         else
1050             return (wxCanvasObject*) NULL;
1051     }
1052     return (wxCanvasObject*) NULL;
1053 }
1054
1055 //----------------------------------------------------------------------------
1056 // wxCanvasEllipse
1057 //----------------------------------------------------------------------------
1058
1059 wxCanvasEllipse::wxCanvasEllipse( double x, double y, double width, double height )
1060    : wxCanvasObject()
1061 {
1062     m_x = x;
1063     m_y = y;
1064     m_width = width;
1065     m_height = height;
1066
1067     m_brush = *wxBLACK_BRUSH;
1068     m_pen = *wxTRANSPARENT_PEN;
1069     CalcBoundingBox();
1070 }
1071
1072 void wxCanvasEllipse::TransLate( double x, double y )
1073 {
1074     m_x += x;
1075     m_y += y;
1076     CalcBoundingBox();
1077 }
1078
1079 void wxCanvasEllipse::CalcBoundingBox()
1080 {
1081     m_bbox.SetMin( m_x, m_y );
1082     m_bbox.SetMax( m_x+m_width , m_y+m_height );
1083
1084     //include the pen width also
1085     m_bbox.EnLarge(m_pen.GetWidth()/2);
1086 }
1087
1088 void wxCanvasEllipse::Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height )
1089 {
1090     if (!m_visible) return;
1091
1092     wxDC *dc = m_admin->GetActive()->GetDC();
1093     dc->SetClippingRegion(clip_x, clip_y, clip_width, clip_height);
1094     dc->SetBrush(m_brush);
1095     int pw=m_pen.GetWidth();
1096     m_pen.SetWidth(m_admin->LogicalToDeviceXRel(pw));
1097     dc->SetPen(m_pen);
1098     int x = m_admin->LogicalToDeviceX(cworld->GetValue(2,0) + m_x );
1099     int y = m_admin->LogicalToDeviceY(cworld->GetValue(2,1) + m_y );
1100     int w = m_admin->LogicalToDeviceXRel( m_width );
1101     int h = m_admin->LogicalToDeviceYRel( m_height );
1102     if (w > 0 && w < 1) w=1;
1103     if (w < 0 && w > -1) w=-1;
1104     if (h > 0 && h < 1) h=1;
1105     if (h < 0 && h > -1) h=-1;
1106     dc->DrawEllipse( x,y,w,h);
1107     dc->SetBrush(wxNullBrush);
1108     dc->SetPen(wxNullPen);
1109     dc->DestroyClippingRegion();
1110     m_pen.SetWidth(pw);
1111 }
1112
1113 void wxCanvasEllipse::WriteSVG( wxTextOutputStream &stream )
1114 {
1115 }
1116
1117 wxCanvasObject* wxCanvasEllipse::IsHitWorld( double x, double y, double margin )
1118 {
1119     if ((x >= m_bbox.GetMinX()-margin) &&
1120         (x <= m_bbox.GetMaxX()+margin) &&
1121         (y >= m_bbox.GetMinY()-margin) &&
1122         (y <= m_bbox.GetMaxY()+margin)
1123        )
1124     {
1125         double a=(m_width+m_pen.GetWidth())/2+margin ;
1126         double b=(m_height+m_pen.GetWidth())/2+margin;
1127         double c=pow((m_x+m_width/2-x)/a,2)+pow((m_y+m_height/2-y)/b,2);
1128         if ( 1 > c)
1129             return this;
1130         else
1131             return (wxCanvasObject*) NULL;
1132     }
1133     return (wxCanvasObject*) NULL;
1134 }
1135
1136 //----------------------------------------------------------------------------
1137 // wxCanvasEllipticArc
1138 //----------------------------------------------------------------------------
1139
1140 wxCanvasEllipticArc::wxCanvasEllipticArc( double x, double y, double width, double height, double start, double end )
1141    : wxCanvasObject()
1142 {
1143     m_x = x;
1144     m_y = y;
1145     m_width  = width;
1146     m_height = height;
1147     m_start  = start;
1148     m_end    = end;
1149
1150     m_brush = *wxBLACK_BRUSH;
1151     m_pen = *wxTRANSPARENT_PEN;
1152     CalcBoundingBox();
1153 }
1154
1155 void wxCanvasEllipticArc::TransLate( double x, double y )
1156 {
1157     m_x += x;
1158     m_y += y;
1159     CalcBoundingBox();
1160 }
1161
1162 void wxCanvasEllipticArc::CalcBoundingBox()
1163 {
1164     m_bbox.SetMin( m_x, m_y );
1165     m_bbox.SetMax( m_x+m_width , m_y+m_height );
1166
1167     //include the pen width also
1168     m_bbox.EnLarge(m_pen.GetWidth()/2);
1169 }
1170
1171 void wxCanvasEllipticArc::Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height )
1172 {
1173     if (!m_visible) return;
1174
1175     wxDC *dc = m_admin->GetActive()->GetDC();
1176     dc->SetClippingRegion(clip_x, clip_y, clip_width, clip_height);
1177     dc->SetBrush(m_brush);
1178     int pw=m_pen.GetWidth();
1179     m_pen.SetWidth(m_admin->LogicalToDeviceXRel(pw));
1180     dc->SetPen(m_pen);
1181     int x = m_admin->LogicalToDeviceX(cworld->GetValue(2,0) + m_x );
1182     int y = m_admin->LogicalToDeviceY(cworld->GetValue(2,1) + m_y );
1183     int w = m_admin->LogicalToDeviceXRel( m_width );
1184     int h = m_admin->LogicalToDeviceYRel( m_height );
1185     if (w > 0 && w < 1) w=1;
1186     if (w < 0 && w > -1) w=-1;
1187     if (h > 0 && h < 1) h=1;
1188     if (h < 0 && h > -1) h=-1;
1189     if (m_admin->GetActive()->GetYaxis())
1190         dc->DrawEllipticArc( x,y,w,h,-m_end,-m_start);
1191     else
1192         dc->DrawEllipticArc( x,y,w,h,m_start,m_end);
1193     dc->SetBrush(wxNullBrush);
1194     dc->SetPen(wxNullPen);
1195     dc->DestroyClippingRegion();
1196     m_pen.SetWidth(pw);
1197 }
1198
1199 void wxCanvasEllipticArc::WriteSVG( wxTextOutputStream &stream )
1200 {
1201 }
1202
1203 wxCanvasObject* wxCanvasEllipticArc::IsHitWorld( double x, double y, double margin )
1204 {
1205     if ((x >= m_bbox.GetMinX()-margin) &&
1206         (x <= m_bbox.GetMaxX()+margin) &&
1207         (y >= m_bbox.GetMinY()-margin) &&
1208         (y <= m_bbox.GetMaxY()+margin)
1209        )
1210     {
1211         double a=(m_width+m_pen.GetWidth())/2+margin ;
1212         double b=(m_height+m_pen.GetWidth())/2+margin;
1213         double c=pow((m_x+m_width/2-x)/a,2)+pow((m_y+m_height/2-y)/b,2);
1214         if ( 1 > c)
1215             return this;
1216         else
1217             return (wxCanvasObject*) NULL;
1218     }
1219     return (wxCanvasObject*) NULL;
1220 }
1221
1222 //----------------------------------------------------------------------------
1223 // wxCanvasLine
1224 //----------------------------------------------------------------------------
1225
1226 wxCanvasLine::wxCanvasLine( double x1, double y1, double x2, double y2 )
1227    : wxCanvasObject()
1228 {
1229     m_x1 = x1;
1230     m_y1 = y1;
1231     m_x2 = x2;
1232     m_y2 = y2;
1233
1234     m_pen = *wxBLACK_PEN;
1235     CalcBoundingBox();
1236 }
1237
1238 void wxCanvasLine::TransLate( double x, double y )
1239 {
1240     m_x1 += x;
1241     m_y1 += y;
1242     m_x2 += x;
1243     m_y2 += y;
1244     CalcBoundingBox();
1245 }
1246
1247 void wxCanvasLine::CalcBoundingBox()
1248 {
1249     m_bbox.SetMin( m_x1 , m_y1);
1250     m_bbox.SetMax( m_x2 , m_y2);
1251
1252     //include the pen width also
1253     m_bbox.EnLarge(m_pen.GetWidth()/2);
1254 }
1255
1256 void wxCanvasLine::Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height )
1257 {
1258     if (!m_visible) return;
1259
1260     double x1,y1,x2,y2;
1261     cworld->TransformPoint( m_x1, m_y1, x1, y1 );
1262     cworld->TransformPoint( m_x2, m_y2, x2, y2 );
1263     x1 = m_admin->LogicalToDeviceX( x1 );
1264     y1 = m_admin->LogicalToDeviceY( y1 );
1265     x2 = m_admin->LogicalToDeviceX( x2 );
1266     y2 = m_admin->LogicalToDeviceY( y2 );
1267
1268     wxDC *dc = m_admin->GetActive()->GetDC();
1269     dc->SetClippingRegion( clip_x, clip_y, clip_width, clip_height );
1270     int pw=m_pen.GetWidth();
1271     m_pen.SetWidth(m_admin->LogicalToDeviceXRel(pw));
1272     dc->SetPen( m_pen );
1273     dc->DrawLine( x1, y1, x2, y2 );
1274
1275     dc->DestroyClippingRegion();
1276     m_pen.SetWidth(pw);
1277 }
1278
1279 void wxCanvasLine::WriteSVG( wxTextOutputStream &stream )
1280 {
1281     // no idea
1282 }
1283
1284 wxCanvasObject* wxCanvasLine::IsHitWorld( double x, double y, double margin )
1285 {
1286     if ((x >= m_bbox.GetMinX()-margin) &&
1287         (x <= m_bbox.GetMaxX()+margin) &&
1288         (y >= m_bbox.GetMinY()-margin) &&
1289         (y <= m_bbox.GetMaxY()+margin)
1290        )
1291     {
1292         wxLine line1(m_x1,m_y1,m_x2,m_y2);
1293         wxPoint2DDouble P=wxPoint2DDouble(x,y);
1294         double distance;
1295         if (line1.PointInLine(P,distance,m_pen.GetWidth()/2+margin) == R_IN_AREA)
1296             return this;
1297         else
1298             return (wxCanvasObject*) NULL;
1299     }
1300     return (wxCanvasObject*) NULL;
1301 }
1302
1303 //----------------------------------------------------------------------------
1304 // wxCanvasImage
1305 //----------------------------------------------------------------------------
1306
1307 wxCanvasImage::wxCanvasImage( const wxImage &image, double x, double y, double w, double h )
1308    : wxCanvasObject()
1309 {
1310     m_x = x;
1311     m_y = y;
1312     m_width = w;
1313     m_height = h;
1314
1315     m_image = image;
1316
1317     m_orgw = m_image.GetWidth();
1318     m_orgh = m_image.GetHeight();
1319
1320     m_isImage = TRUE;
1321     CalcBoundingBox();
1322 }
1323
1324 void wxCanvasImage::TransLate( double x, double y )
1325 {
1326     m_x += x;
1327     m_y += y;
1328     CalcBoundingBox();
1329 }
1330
1331 void wxCanvasImage::CalcBoundingBox()
1332 {
1333     m_bbox.SetMin( m_x, m_y );
1334     m_bbox.SetMax( m_x + m_width, m_y + m_height );
1335 }
1336
1337 void wxCanvasImage::Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height )
1338 {
1339     if (!m_visible) return;
1340
1341     wxRect tmparea;
1342
1343     tmparea.x = m_admin->LogicalToDeviceXRel( m_bbox.GetMinX());
1344     tmparea.y = m_admin->LogicalToDeviceYRel( m_bbox.GetMinY());
1345     tmparea.width = m_admin->LogicalToDeviceXRel( m_bbox.GetWidth() );
1346     tmparea.height = m_admin->LogicalToDeviceYRel( m_bbox.GetHeight() );
1347
1348     double x;
1349     double y;
1350     cworld->TransformPoint( m_x, m_y, x, y );
1351     x = m_admin->LogicalToDeviceX(x);
1352     y = m_admin->LogicalToDeviceY(y);
1353
1354
1355     if (  m_orgw*5 < m_admin->LogicalToDeviceXRel( m_bbox.GetWidth()  ) ||
1356           m_orgw/5 > m_admin->LogicalToDeviceXRel( m_bbox.GetWidth()  ) ||
1357           m_orgh*5 < m_admin->LogicalToDeviceYRel( m_bbox.GetHeight() ) ||
1358           m_orgh/5 > m_admin->LogicalToDeviceYRel( m_bbox.GetHeight() )
1359        )
1360     {
1361         wxDC *dc = m_admin->GetActive()->GetDC();
1362         dc->SetClippingRegion(clip_x, clip_y, clip_width, clip_height);
1363         dc->SetBrush(*wxTRANSPARENT_BRUSH);
1364         dc->SetPen(*wxBLACK_PEN);
1365         //yes the whole not only the clipping region, because we have a pen also
1366         int x = m_admin->LogicalToDeviceX(cworld->GetValue(2,0) + m_x );
1367         int y = m_admin->LogicalToDeviceY(cworld->GetValue(2,1) + m_y );
1368         int w = m_admin->LogicalToDeviceXRel( m_width );
1369         int h = m_admin->LogicalToDeviceYRel( m_height );
1370         if (w < 1) w=1;
1371         if (h < 1) h=1;
1372         dc->DrawRectangle( x,y,w,h);
1373         dc->SetBrush(wxNullBrush);
1374         dc->SetPen(wxNullPen);
1375         dc->DestroyClippingRegion();
1376         return;
1377     }
1378
1379     if ((m_admin->LogicalToDeviceXRel( m_bbox.GetWidth() ) == m_image.GetWidth()) &&
1380         (m_admin->LogicalToDeviceYRel( m_bbox.GetHeight() ) == m_image.GetHeight()))
1381     {
1382         m_tmp = m_image;
1383     }
1384     else
1385     {
1386         m_tmp = m_image.Scale( m_admin->LogicalToDeviceXRel( m_bbox.GetWidth()),
1387                                m_admin->LogicalToDeviceYRel( m_bbox.GetHeight()) );
1388     }
1389
1390     wxBitmap bmp;
1391 //    wxPoint centr(m_admin->LogicalToDeviceX(m_x),m_admin->LogicalToDeviceY(m_y));
1392     wxPoint centr(0,0);
1393
1394     if (cworld->GetRotation())
1395     {
1396         bmp=m_tmp.Rotate(-cworld->GetRotation()/180.0 * pi,centr, TRUE,  NULL).ConvertToBitmap();
1397     }
1398     else
1399     {
1400         bmp = m_tmp.ConvertToBitmap();
1401     }
1402
1403     wxDC *dc = m_admin->GetActive()->GetDC();
1404
1405     wxPoint centr2;
1406     if (cworld->GetRotation()> 0)
1407     {
1408         centr2.x= (int) (x+m_height*sin(-cworld->GetRotation()/180.0 * pi));
1409         centr2.y= (int) y;
1410     }
1411     else
1412     {
1413         centr2.x= (int) x;
1414         centr2.y= (int) (y-m_width*sin(-cworld->GetRotation()/180.0 * pi));
1415     }
1416
1417     if (cworld->GetRotation() != 0)
1418     {
1419         //TODO clipping not right
1420             dc->DrawBitmap(bmp,centr2,TRUE );
1421 //        dc->DrawPoint(centr2);
1422 //        dc->DrawPoint(x,y);
1423     }
1424     else
1425     {
1426         //TODO clipping not right
1427 //        dc->DrawPoint(centr2);
1428 //        dc->DrawPoint(x,y);
1429
1430         if ((clip_x == x) &&
1431             (clip_y == y) &&
1432             (clip_width == tmparea.width) &&
1433             (clip_height == tmparea.height))
1434         {
1435             dc->DrawBitmap( m_tmp, clip_x, clip_y, TRUE );
1436         }
1437         else
1438         {
1439             int start_x = clip_x - (int)x;
1440             int start_y = clip_y - (int)y;
1441
1442             //dc->DrawBitmap( bmp, x, y, TRUE );
1443             wxMemoryDC dcm;
1444             dcm.SelectObject(bmp);
1445             dc->Blit(clip_x, clip_y,clip_width, clip_height,&dcm,start_x,start_y,wxCOPY,TRUE);
1446             dcm.SelectObject(wxNullBitmap);
1447         }
1448     }
1449 }
1450
1451 void wxCanvasImage::WriteSVG( wxTextOutputStream &stream )
1452 {
1453     // no idea
1454 }
1455
1456 //----------------------------------------------------------------------------
1457 // wxCanvasCtrl
1458 //----------------------------------------------------------------------------
1459
1460 wxCanvasControl::wxCanvasControl( wxWindow *control )
1461    : wxCanvasObject()
1462 {
1463     m_isControl = TRUE;
1464     m_control = control;
1465     CalcBoundingBox();
1466 }
1467
1468 double wxCanvasControl::GetPosX()
1469 {
1470     int x,y ;
1471     m_control->GetPosition( &x, &y );
1472     return m_admin->DeviceToLogicalX(x);
1473 }
1474
1475 double wxCanvasControl::GetPosY()
1476 {
1477     int x,y ;
1478     m_control->GetPosition( &x, &y );
1479     return m_admin->DeviceToLogicalY(y);
1480 }
1481
1482 void wxCanvasControl::SetPosXY( double x, double y)
1483 {
1484     int xd = m_admin->LogicalToDeviceX(x);
1485     int yd = m_admin->LogicalToDeviceY(y);
1486     m_control->Move(xd,yd);
1487 }
1488
1489
1490 void wxCanvasControl::TransLate( double x, double y )
1491 {
1492     int xdo,ydo;
1493     m_control->GetPosition( &xdo, &ydo );
1494     int xd = m_admin->LogicalToDeviceX(x)-xdo;
1495     int yd = m_admin->LogicalToDeviceY(y)-ydo;
1496     m_control->Move(xd,yd);
1497     CalcBoundingBox();
1498 }
1499
1500 wxCanvasControl::~wxCanvasControl()
1501 {
1502     m_control->Destroy();
1503 }
1504
1505 void wxCanvasControl::CalcBoundingBox()
1506 {
1507     wxRect tmparea;
1508
1509     m_control->GetSize( &tmparea.width, &tmparea.height );
1510     m_control->GetPosition( &tmparea.x, &tmparea.y );
1511
1512     m_bbox.SetMin( tmparea.x , tmparea.y);
1513     m_bbox.SetMax( tmparea.x + tmparea.width , tmparea.y + tmparea.height);
1514
1515 }
1516
1517 void wxCanvasControl::MoveRelative( double x, double y )
1518 {
1519     m_control->Move( m_admin->LogicalToDeviceX(x),  m_admin->LogicalToDeviceX(y) );
1520 }
1521
1522 //----------------------------------------------------------------------------
1523 // wxCanvasText
1524 //----------------------------------------------------------------------------
1525
1526 class wxFaceData
1527 {
1528 public:
1529 #if wxUSE_FREETYPE
1530      FT_Face   m_face;
1531 #else
1532      void     *m_dummy;
1533 #endif
1534 };
1535
1536 wxCanvasText::wxCanvasText( const wxString &text, double x, double y, const wxString &fontFile, int size )
1537    : wxCanvasObject()
1538 {
1539     m_text = text;
1540     m_fontFileName = fontFile;
1541     m_size = size;
1542
1543     m_red = 0;
1544     m_green = 0;
1545     m_blue = 0;
1546
1547     m_alpha = NULL;
1548
1549     m_x = x;
1550     m_y = y;
1551
1552 #if wxUSE_FREETYPE
1553     wxFaceData *data = new wxFaceData;
1554     m_faceData = data;
1555
1556     int error = FT_New_Face( g_freetypeLibrary,
1557                              m_fontFileName,
1558                              0,
1559                              &(data->m_face) );
1560
1561     error = FT_Set_Char_Size( data->m_face,
1562                               0,
1563                               m_size*64,
1564                               96,    // screen dpi
1565                               96 );
1566 #endif
1567     CalcBoundingBox();
1568 }
1569
1570 wxCanvasText::~wxCanvasText()
1571 {
1572 #if wxUSE_FREETYPE
1573     wxFaceData *data = (wxFaceData*) m_faceData;
1574     delete data;
1575 #endif
1576
1577     if (m_alpha) delete [] m_alpha;
1578 }
1579
1580 void wxCanvasText::SetRGB( unsigned char red, unsigned char green, unsigned char blue )
1581 {
1582     m_red = red;
1583     m_green = green;
1584     m_blue = blue;
1585 }
1586
1587 void wxCanvasText::SetFlag( int flag )
1588 {
1589     m_flag = flag;
1590 }
1591
1592 void wxCanvasText::Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height )
1593 {
1594     if (!m_visible) return;
1595
1596     wxRect tmparea;
1597     tmparea.x = m_admin->LogicalToDeviceX( m_bbox.GetMinX());
1598     tmparea.y = m_admin->LogicalToDeviceY( m_bbox.GetMinY());
1599     tmparea.width = m_admin->LogicalToDeviceXRel( m_bbox.GetWidth() );
1600     tmparea.height = m_admin->LogicalToDeviceYRel( m_bbox.GetHeight() );
1601
1602     m_alpha = new unsigned char[tmparea.width*tmparea.height];
1603     memset( m_alpha, 0, tmparea.width*tmparea.height );
1604
1605     if (!m_alpha) return;
1606
1607 #if wxUSE_FREETYPE
1608     FT_Face face = ((wxFaceData*)m_faceData)->m_face;
1609     FT_GlyphSlot slot = face->glyph;
1610     int pen_x = 0;
1611     int pen_y = m_size;
1612
1613     for (int n = 0; n < (int)m_text.Len(); n++)
1614     {
1615         FT_UInt index = FT_Get_Char_Index( face, m_text[(unsigned int)n] );
1616
1617         int error = FT_Load_Glyph( face, index, FT_LOAD_DEFAULT );
1618         if (error) continue;
1619
1620         error = FT_Render_Glyph( face->glyph, ft_render_mode_normal );
1621         if (error) continue;
1622
1623         FT_Bitmap *bitmap = &slot->bitmap;
1624         unsigned char* buffer = bitmap->buffer;
1625         for (int y = 0; y < bitmap->rows; y++)
1626             for (int x = 0; x < bitmap->width; x++)
1627             {
1628                 unsigned char alpha = buffer[ y*bitmap->pitch + x ];
1629                 if (alpha == 0) continue;
1630
1631                 int xx = pen_x + slot->bitmap_left + x;
1632                 int yy = pen_y - slot->bitmap_top + y;
1633                 m_alpha[ yy * tmparea.width + xx ] = alpha;
1634             }
1635
1636         pen_x += slot->advance.x >> 6;
1637         pen_y += slot->advance.y >> 6;
1638     }
1639 #endif
1640
1641     wxBitmap *bitmap = m_admin->GetActive()->GetBuffer();
1642     wxRect sub_rect( clip_x, clip_y, clip_width, clip_height );
1643     wxBitmap sub_bitmap( bitmap->GetSubBitmap( sub_rect ) );
1644
1645     wxImage image( sub_bitmap );
1646
1647     // local coordinates
1648     int start_x = clip_x - tmparea.x;
1649     int end_x = clip_width + start_x;
1650     int start_y = clip_y - tmparea.y;
1651     int end_y = clip_height + start_y;
1652
1653     for (int y = start_y; y < end_y; y++)
1654         for (int x = start_x; x < end_x; x++)
1655         {
1656             int alpha = m_alpha[y*tmparea.width + x];
1657             if (alpha)
1658             {
1659                 int image_x = x - start_x;
1660                 int image_y = y - start_y;
1661                 if (alpha == 255)
1662                 {
1663                     image.SetRGB( image_x, image_y, m_red, m_green, m_blue );
1664                     continue;
1665                 }
1666                 int red1 = (m_red * alpha) / 255;
1667                 int green1 = (m_green * alpha) / 255;
1668                 int blue1 = (m_blue * alpha) / 255;
1669
1670                 alpha = 255-alpha;
1671                 int red2 = image.GetRed( image_x, image_y );
1672                 int green2 = image.GetGreen( image_x, image_y );
1673                 int blue2 = image.GetBlue( image_x, image_y );
1674                 red2 = (red2 * alpha) / 255;
1675                 green2 = (green2 * alpha) / 255;
1676                 blue2 = (blue2 * alpha) / 255;
1677
1678                 image.SetRGB( image_x, image_y, red1+red2, green1+green2, blue1+blue2 );
1679             }
1680         }
1681
1682    sub_bitmap = image.ConvertToBitmap();
1683
1684    wxDC *dc = m_admin->GetActive()->GetDC();
1685    dc->DrawBitmap( sub_bitmap, clip_x, clip_y );
1686 }
1687
1688 void wxCanvasText::WriteSVG( wxTextOutputStream &stream )
1689 {
1690 }
1691
1692 void wxCanvasText::TransLate( double x, double y )
1693 {
1694     m_x += x;
1695     m_y += y;
1696     CalcBoundingBox();
1697 }
1698
1699 void wxCanvasText::CalcBoundingBox()
1700 {
1701     if (m_alpha) delete [] m_alpha;
1702
1703     m_bbox.SetMin( m_x , m_y);
1704     m_bbox.SetMax( m_x + 100 , m_y + m_size + (m_size/2));
1705
1706
1707 }
1708
1709 //----------------------------------------------------------------------------
1710 // wxCanvas
1711 //----------------------------------------------------------------------------
1712
1713 IMPLEMENT_CLASS(wxCanvas,wxScrolledWindow)
1714
1715 BEGIN_EVENT_TABLE(wxCanvas,wxScrolledWindow)
1716     EVT_PAINT( wxCanvas::OnPaint )
1717     EVT_IDLE( wxCanvas::OnIdle )
1718     EVT_SIZE( wxCanvas::OnSize )
1719     EVT_MOUSE_EVENTS( wxCanvas::OnMouse )
1720     EVT_SET_FOCUS( wxCanvas::OnSetFocus )
1721     EVT_KILL_FOCUS( wxCanvas::OnKillFocus )
1722     EVT_ERASE_BACKGROUND( wxCanvas::OnEraseBackground )
1723 END_EVENT_TABLE()
1724
1725 wxCanvas::wxCanvas( wxCanvasAdmin* admin, wxWindow *parent, wxWindowID id,
1726     const wxPoint &position, const wxSize& size, long style ) :
1727     wxScrolledWindow( parent, id, position, size, style )
1728 {
1729     // These are unused in wxVectorCanvas
1730     m_bufferX = 0;
1731     m_bufferY = 0;
1732
1733     m_admin = admin;
1734     m_admin->Append( this );
1735
1736     m_needUpdate = FALSE;
1737     m_background = *wxWHITE;
1738     m_lastMouse = (wxCanvasObject*)NULL;
1739     m_captureMouse = (wxCanvasObject*)NULL;
1740     m_frozen = FALSE;
1741     m_oldDeviceX = 0;
1742     m_oldDeviceY = 0;
1743     m_root = (wxCanvasObjectGroup*)NULL;
1744 }
1745
1746 wxCanvas::~wxCanvas()
1747 {
1748     wxNode *node = m_updateRects.First();
1749     while (node)
1750     {
1751         wxRect *rect = (wxRect*) node->Data();
1752         delete rect;
1753         m_updateRects.DeleteNode( node );
1754         node = m_updateRects.First();
1755     }
1756 }
1757
1758 double wxCanvas::GetMinX() const
1759 {
1760     return 0.0;
1761 }
1762
1763 double wxCanvas::GetMinY() const
1764 {
1765     return 0.0;
1766 }
1767
1768 double wxCanvas::GetMaxX() const
1769 {
1770    int width;
1771    GetVirtualSize( &width, NULL );
1772    return width;
1773 }
1774
1775 double wxCanvas::GetMaxY() const
1776 {
1777    int height;
1778    GetVirtualSize( NULL, &height );
1779    return height;
1780 }
1781
1782 void wxCanvas::SetColour( const wxColour& background )
1783 {
1784     m_background = background;
1785     SetBackgroundColour( m_background );
1786
1787     if (m_frozen) return;
1788
1789     wxMemoryDC dc;
1790     dc.SelectObject( m_buffer );
1791     dc.SetPen( *wxTRANSPARENT_PEN );
1792     wxBrush brush( m_background, wxSOLID );
1793     dc.SetBrush( brush );
1794     dc.DrawRectangle( 0, 0, m_buffer.GetWidth(), m_buffer.GetHeight() );
1795     dc.SelectObject( wxNullBitmap );
1796 }
1797
1798 void wxCanvas::SetCaptureMouse( wxCanvasObject *obj )
1799 {
1800     if (obj)
1801     {
1802         wxWindow::CaptureMouse();
1803         m_captureMouse = obj;
1804     }
1805     else
1806     {
1807         wxWindow::ReleaseMouse();
1808         m_captureMouse = NULL;
1809     }
1810 }
1811
1812 void wxCanvas::Freeze()
1813 {
1814     m_frozen = TRUE;
1815 }
1816
1817 void wxCanvas::Thaw()
1818 {
1819     wxNode *node = m_updateRects.First();
1820     while (node)
1821     {
1822         wxRect *rect = (wxRect*) node->Data();
1823         delete rect;
1824         m_updateRects.DeleteNode( node );
1825         node = m_updateRects.First();
1826     }
1827
1828     m_frozen = FALSE;
1829
1830     if (m_buffer.Ok())
1831         Update( m_bufferX, m_bufferY, m_buffer.GetWidth(), m_buffer.GetHeight() );
1832 }
1833
1834 void wxCanvas::Update( int x, int y, int width, int height, bool blit )
1835 {
1836     CalcScrolledPosition( 0, 0, &m_oldDeviceX, &m_oldDeviceY );
1837
1838     m_admin->SetActive(this);
1839
1840     if (!m_root) return;
1841
1842     if (m_frozen) return;
1843
1844     // clip to buffer
1845     if (x < m_bufferX)
1846     {
1847         width -= m_bufferX-x;
1848         x = m_bufferX;
1849     }
1850     if (width <= 0) return;
1851
1852     if (y < m_bufferY)
1853     {
1854         height -= m_bufferY-y;
1855         y = m_bufferY;
1856     }
1857     if (height <= 0) return;
1858
1859     if (x+width > m_bufferX+m_buffer.GetWidth())
1860     {
1861         width = m_bufferX+m_buffer.GetWidth() - x;
1862     }
1863     if (width <= 0) return;
1864
1865     if (y+height > m_bufferY+m_buffer.GetHeight())
1866     {
1867         height = m_bufferY+m_buffer.GetHeight() - y;
1868     }
1869     if (height <= 0) return;
1870
1871     // update is within the buffer
1872     m_needUpdate = TRUE;
1873
1874     // has to be blitted to screen later
1875     if (blit)
1876     {
1877         m_updateRects.Append(
1878             (wxObject*) new wxRect( x,y,width,height ) );
1879     }
1880
1881     wxTransformMatrix cworld;
1882
1883     wxMemoryDC dc;
1884     dc.SelectObject( m_buffer );
1885
1886     dc.SetPen( *wxTRANSPARENT_PEN );
1887     wxBrush brush( m_background, wxSOLID );
1888     dc.SetBrush( brush );
1889     dc.SetLogicalFunction(wxCOPY);
1890
1891 #if 0
1892     if (width != m_buffer.GetWidth() && height != m_buffer.GetHeight())
1893     {
1894         dc.SetClippingRegion(x,y,width,height);
1895         dc.DrawRectangle(x-2,y-2,width+4,height+4);
1896         dc.DestroyClippingRegion();
1897     }
1898     else
1899     {
1900         dc.Clear();
1901         dc.DrawRectangle(0,0,m_buffer.GetWidth(),m_buffer.GetHeight());
1902     }
1903 #else
1904     // No idea, what the code up there does.
1905     dc.DrawRectangle( x-m_bufferX, y-m_bufferY, width, height );
1906 #endif
1907
1908     dc.SetBrush(wxNullBrush);
1909     dc.SetPen(wxNullPen);
1910
1911     dc.SetDeviceOrigin( m_oldDeviceX, m_oldDeviceY );
1912     m_renderDC = &dc;
1913
1914     m_root->Render( &cworld, x, y, width, height );
1915
1916     m_renderDC = NULL;
1917     dc.SelectObject( wxNullBitmap );
1918 }
1919
1920 void wxCanvas::BlitBuffer( wxDC &dc )
1921 {
1922     wxNode *node = m_updateRects.First();
1923     while (node)
1924     {
1925         wxRect *rect = (wxRect*) node->Data();
1926
1927         wxMemoryDC mdc;
1928         mdc.SelectObject( m_buffer );
1929         dc.Blit( rect->x,
1930                  rect->y,
1931                  rect->width,
1932                  rect->height,
1933                  &mdc,
1934                  rect->x - m_bufferX,
1935                  rect->y - m_bufferY );
1936         mdc.SelectObject( wxNullBitmap );
1937
1938         delete rect;
1939         m_updateRects.DeleteNode( node );
1940         node = m_updateRects.First();
1941     }
1942
1943     m_needUpdate = FALSE;
1944 }
1945
1946 void wxCanvas::UpdateNow()
1947 {
1948     if (m_frozen) return;
1949
1950     if (!m_needUpdate) return;
1951
1952     wxClientDC dc( this );
1953     PrepareDC( dc );
1954
1955     BlitBuffer( dc );
1956 }
1957
1958 void wxCanvas::OnSize(wxSizeEvent &event)
1959 {
1960     int w,h;
1961     GetClientSize( &w, &h );
1962     m_buffer = wxBitmap( w, h );
1963
1964     CalcUnscrolledPosition( 0, 0, &m_bufferX, &m_bufferY );
1965
1966     wxNode *node = m_updateRects.First();
1967     while (node)
1968     {
1969         wxRect *rect = (wxRect*) node->Data();
1970         delete rect;
1971         m_updateRects.DeleteNode( node );
1972         node = m_updateRects.First();
1973     }
1974
1975     m_frozen = FALSE;
1976
1977     Update( m_bufferX, m_bufferY, m_buffer.GetWidth(), m_buffer.GetHeight(), FALSE );
1978
1979     event.Skip();
1980 }
1981
1982 void wxCanvas::OnPaint(wxPaintEvent &event)
1983 {
1984     wxPaintDC dc(this);
1985     PrepareDC( dc );
1986
1987     if (!m_buffer.Ok()) return;
1988
1989     if (m_frozen) return;
1990
1991     m_needUpdate = TRUE;
1992
1993     wxRegionIterator it( GetUpdateRegion() );
1994     while (it)
1995     {
1996         int x = it.GetX();
1997         int y = it.GetY();
1998
1999         int w = it.GetWidth();
2000         int h = it.GetHeight();
2001
2002         if (x+w > m_buffer.GetWidth())
2003             w = m_buffer.GetWidth() - x;
2004         if (y+h > m_buffer.GetHeight())
2005             h = m_buffer.GetHeight() - y;
2006
2007         if ((w > 0) && (h > 0))
2008         {
2009             x += m_bufferX;
2010             y += m_bufferY;
2011             m_updateRects.Append( (wxObject*) new wxRect( x, y, w, h ) );
2012         }
2013
2014         it++;
2015     }
2016
2017     BlitBuffer( dc );
2018 }
2019
2020 void wxCanvas::ScrollWindow( int dx, int dy, const wxRect* rect )
2021 {
2022     // If any updates are pending, do them now since they will
2023     // expect the previous m_bufferX and m_bufferY as well as
2024     // the previous device origin values.
2025     wxClientDC dc( this );
2026     dc.SetDeviceOrigin( m_oldDeviceX, m_oldDeviceY );
2027     BlitBuffer( dc );
2028
2029     // The buffer always starts at the top left corner of the
2030     // client area. Indeed, it is the client area.
2031     CalcUnscrolledPosition( 0, 0, &m_bufferX, &m_bufferY );
2032
2033     // Update everything.
2034     Update( m_bufferX, m_bufferY, m_buffer.GetWidth(), m_buffer.GetHeight(), FALSE );
2035
2036     // Scroll, actually.
2037     wxWindow::ScrollWindow( dx, dy, rect );
2038 }
2039
2040 void wxCanvas::OnMouse(wxMouseEvent &event)
2041 {
2042     m_admin->SetActive(this);
2043     if (!m_root)
2044     {
2045         event.Skip();
2046         return;
2047     }
2048
2049     int x = event.GetX();
2050     int y = event.GetY();
2051
2052     //to world coordinates to do hit test in world coordinates
2053     double xw = DeviceToLogicalX( x );
2054     double yw = DeviceToLogicalY( y );
2055
2056     //make a select margin of 2 pixels, so also zero line thickness will be hit
2057     double margin = DeviceToLogicalXRel( 2 );
2058
2059     if (event.GetEventType() == wxEVT_MOTION)
2060     {
2061         if (m_captureMouse) //no matter what go to this one
2062         {
2063             wxMouseEvent child_event( wxEVT_MOTION );
2064             child_event.SetEventObject(m_captureMouse);
2065             child_event.m_x = x;
2066             child_event.m_y = y;
2067             child_event.m_leftDown = event.m_leftDown;
2068             child_event.m_rightDown = event.m_rightDown;
2069             child_event.m_middleDown = event.m_middleDown;
2070             child_event.m_controlDown = event.m_controlDown;
2071             child_event.m_shiftDown = event.m_shiftDown;
2072             child_event.m_altDown = event.m_altDown;
2073             child_event.m_metaDown = event.m_metaDown;
2074
2075             m_captureMouse->ProcessCanvasObjectEvent( child_event );
2076             return;
2077         }
2078         else
2079         {
2080             wxCanvasObject *obj = m_root->IsHitWorld(xw,yw,margin);
2081
2082             if (obj && !obj->IsControl())
2083             {
2084                 wxMouseEvent child_event( wxEVT_MOTION );
2085                 child_event.SetEventObject( obj );
2086                 child_event.m_x = x;
2087                 child_event.m_y = y;
2088                 child_event.m_leftDown = event.m_leftDown;
2089                 child_event.m_rightDown = event.m_rightDown;
2090                 child_event.m_middleDown = event.m_middleDown;
2091                 child_event.m_controlDown = event.m_controlDown;
2092                 child_event.m_shiftDown = event.m_shiftDown;
2093                 child_event.m_altDown = event.m_altDown;
2094                 child_event.m_metaDown = event.m_metaDown;
2095
2096                 if ((obj != m_lastMouse) && (m_lastMouse != NULL))
2097                 {
2098                     child_event.SetEventType( wxEVT_LEAVE_WINDOW );
2099                     child_event.SetEventObject( m_lastMouse );
2100                     child_event.m_x = x;
2101                     child_event.m_y = y;
2102                     m_lastMouse->ProcessCanvasObjectEvent( child_event );
2103
2104                     m_lastMouse = obj;
2105                     child_event.SetEventType( wxEVT_ENTER_WINDOW );
2106                     child_event.SetEventObject( m_lastMouse );
2107                     child_event.m_x = x;
2108                     child_event.m_y = y;
2109                     m_lastMouse->ProcessCanvasObjectEvent( child_event );
2110
2111                     child_event.SetEventType( wxEVT_MOTION );
2112                     child_event.SetEventObject( obj );
2113                 }
2114
2115                 obj->ProcessCanvasObjectEvent( child_event );
2116                 return;
2117             }
2118         }
2119         if (m_lastMouse)
2120         {
2121             wxMouseEvent child_event( wxEVT_LEAVE_WINDOW );
2122             child_event.SetEventObject( m_lastMouse );
2123             child_event.m_x = x;
2124             child_event.m_y = y;
2125             child_event.m_leftDown = event.m_leftDown;
2126             child_event.m_rightDown = event.m_rightDown;
2127             child_event.m_middleDown = event.m_middleDown;
2128             child_event.m_controlDown = event.m_controlDown;
2129             child_event.m_shiftDown = event.m_shiftDown;
2130             child_event.m_altDown = event.m_altDown;
2131             child_event.m_metaDown = event.m_metaDown;
2132             m_lastMouse->ProcessCanvasObjectEvent( child_event );
2133
2134             m_lastMouse = (wxCanvasObject*) NULL;
2135             return;
2136         }
2137     }
2138     else
2139     {
2140         if (m_captureMouse) //no matter what go to this one
2141         {
2142             wxMouseEvent child_event( event.GetEventType() );
2143             child_event.SetEventObject(m_captureMouse);
2144             child_event.m_x = x;
2145             child_event.m_y = y;
2146             child_event.m_leftDown = event.m_leftDown;
2147             child_event.m_rightDown = event.m_rightDown;
2148             child_event.m_middleDown = event.m_middleDown;
2149             child_event.m_controlDown = event.m_controlDown;
2150             child_event.m_shiftDown = event.m_shiftDown;
2151             child_event.m_altDown = event.m_altDown;
2152             child_event.m_metaDown = event.m_metaDown;
2153             m_captureMouse->ProcessCanvasObjectEvent( child_event );
2154         }
2155         else
2156         {
2157             wxCanvasObject *obj = m_root->IsHitWorld(xw,yw,margin);
2158
2159             if (obj && !obj->IsControl())
2160             {
2161                 wxMouseEvent child_event( event.GetEventType() );
2162                 child_event.SetEventObject( obj );
2163                 child_event.m_x = x;
2164                 child_event.m_y = y;
2165                 child_event.m_leftDown = event.m_leftDown;
2166                 child_event.m_rightDown = event.m_rightDown;
2167                 child_event.m_middleDown = event.m_middleDown;
2168                 child_event.m_controlDown = event.m_controlDown;
2169                 child_event.m_shiftDown = event.m_shiftDown;
2170                 child_event.m_altDown = event.m_altDown;
2171                 child_event.m_metaDown = event.m_metaDown;
2172
2173                 obj->ProcessCanvasObjectEvent( child_event );
2174                 return;
2175             }
2176         }
2177     }
2178
2179     event.Skip();
2180 }
2181
2182 void wxCanvas::OnIdle(wxIdleEvent &event)
2183 {
2184     m_admin->SetActive(this);
2185     UpdateNow();
2186     event.Skip();
2187 }
2188
2189 void wxCanvas::OnSetFocus(wxFocusEvent &event)
2190 {
2191     m_admin->SetActive(this);
2192 }
2193
2194 void wxCanvas::OnKillFocus(wxFocusEvent &event)
2195 {
2196 }
2197
2198
2199 void wxCanvas::OnEraseBackground(wxEraseEvent &event)
2200 {
2201 }
2202
2203 // coordinates conversions
2204 // -----------------------
2205 double wxCanvas::DeviceToLogicalX(int x) const
2206 {
2207     return (double)(x);
2208 }
2209
2210 double wxCanvas::DeviceToLogicalY(int y) const
2211 {
2212     return (double)(y);
2213 }
2214
2215 double wxCanvas::DeviceToLogicalXRel(int x) const
2216 {
2217     return (double)x;
2218 }
2219
2220 double wxCanvas::DeviceToLogicalYRel(int y) const
2221 {
2222     return (double)y;
2223 }
2224
2225 int wxCanvas::LogicalToDeviceX(double x) const
2226 {
2227     return (int)(x + 0.5);
2228 }
2229
2230 int wxCanvas::LogicalToDeviceY(double y) const
2231 {
2232     return (int)(y + 0.5);
2233 }
2234
2235 int wxCanvas::LogicalToDeviceXRel(double x) const
2236 {
2237     return (int)(x + 0.5);
2238 }
2239
2240 int wxCanvas::LogicalToDeviceYRel(double y) const
2241 {
2242     return (int)(y + 0.5);
2243 }
2244
2245 //----------------------------------------------------------------------------
2246 // wxVectorCanvas
2247 //----------------------------------------------------------------------------
2248
2249 IMPLEMENT_CLASS(wxVectorCanvas,wxCanvas)
2250
2251 BEGIN_EVENT_TABLE(wxVectorCanvas,wxCanvas)
2252     EVT_SCROLLWIN( wxVectorCanvas::OnScroll )
2253     EVT_CHAR( wxVectorCanvas::OnChar )
2254     EVT_SIZE( wxVectorCanvas::OnSize )
2255 END_EVENT_TABLE()
2256
2257 wxVectorCanvas::wxVectorCanvas( wxCanvasAdmin* admin, wxWindow *parent, wxWindowID id,
2258     const wxPoint &position, const wxSize& size, long style ) :
2259     wxCanvas( admin, parent, id, position, size, style )
2260 {
2261     m_scrolled = FALSE;
2262     m_yaxis = FALSE;
2263 }
2264
2265 double wxVectorCanvas::GetMinX() const
2266 {
2267     return m_virt_minX;
2268 }
2269
2270 double wxVectorCanvas::GetMinY() const
2271 {
2272     return m_virt_minY;
2273 }
2274
2275 double wxVectorCanvas::GetMaxX() const
2276 {
2277    return m_virt_maxX;
2278 }
2279
2280 double wxVectorCanvas::GetMaxY() const
2281 {
2282     return m_virt_maxY;
2283 }
2284
2285 void wxVectorCanvas::ScrollWindow( int dx, int dy, const wxRect* rect )
2286 {
2287     // If any updates are pending, do them now since they will
2288     // expect the previous m_bufferX and m_bufferY as well as
2289     // the previous device origin values.
2290     wxClientDC dc( this );
2291     dc.SetDeviceOrigin( m_oldDeviceX, m_oldDeviceY );
2292     BlitBuffer( dc );
2293
2294     if (dy != 0)
2295     {
2296         double dyv=DeviceToLogicalYRel(dy);
2297         m_virt_minY=m_virt_minY-dyv;
2298         m_virt_maxY=m_virt_maxY-dyv;
2299     }
2300     if (dx != 0)
2301     {
2302         double dxv=DeviceToLogicalXRel(dx);
2303         m_virt_minX=m_virt_minX-dxv;
2304         m_virt_maxX=m_virt_maxX-dxv;
2305     }
2306
2307     m_admin->SetActive(this);
2308     SetMappingScroll(m_virt_minX,m_virt_minY,m_virt_maxX,m_virt_maxY,FALSE);
2309
2310
2311     if (dy != 0)
2312     {
2313         if (dy > 0 && dy < m_buffer.GetHeight())
2314         {
2315             wxRect rect( 0, 0, m_buffer.GetWidth(), m_buffer.GetHeight()-dy);
2316             wxBitmap sub_bitmap( m_buffer.GetSubBitmap( rect ) );
2317             wxMemoryDC dcm;
2318             dcm.SelectObject( m_buffer );
2319             dcm.DrawBitmap( sub_bitmap, 0, dy, TRUE );
2320             dcm.SelectObject( wxNullBitmap );
2321
2322             Update( 0, 0, m_buffer.GetWidth(), dy, TRUE );
2323         }
2324         else  if (dy < 0 && dy > -m_buffer.GetHeight())
2325         {
2326             wxRect rect( 0, -dy, m_buffer.GetWidth(), m_buffer.GetHeight()+dy);
2327             wxBitmap sub_bitmap( m_buffer.GetSubBitmap( rect ) );
2328             wxMemoryDC dcm;
2329             dcm.SelectObject( m_buffer );
2330             dcm.DrawBitmap( sub_bitmap, 0, 0, TRUE );
2331             dcm.SelectObject( wxNullBitmap );
2332
2333             Update( 0, m_buffer.GetHeight()+dy, m_buffer.GetWidth(), m_buffer.GetHeight(), TRUE );
2334         }
2335         else
2336             Update( 0, 0, m_buffer.GetWidth(), m_buffer.GetHeight(), TRUE );
2337     }
2338
2339     if (dx != 0)
2340     {
2341         if (dx > 0 && dx < m_buffer.GetWidth())
2342         {
2343             wxRect rect( 0, 0, m_buffer.GetWidth()-dx, m_buffer.GetHeight());
2344             wxBitmap sub_bitmap( m_buffer.GetSubBitmap( rect ) );
2345             wxMemoryDC dcm;
2346             dcm.SelectObject( m_buffer );
2347             dcm.DrawBitmap( sub_bitmap, dx, 0, TRUE );
2348             dcm.SelectObject( wxNullBitmap );
2349
2350             Update( 0, 0, dx, m_buffer.GetHeight(), TRUE );
2351         }
2352         else if (dx < 0 && dx > -m_buffer.GetWidth())
2353         {
2354             wxRect rect( -dx, 0, m_buffer.GetWidth()+dx, m_buffer.GetHeight());
2355             wxBitmap sub_bitmap( m_buffer.GetSubBitmap( rect ) );
2356             wxMemoryDC dcm;
2357             dcm.SelectObject( m_buffer );
2358             dcm.DrawBitmap( sub_bitmap, 0, 0, TRUE );
2359             dcm.SelectObject( wxNullBitmap );
2360
2361             Update( m_buffer.GetWidth()+dx, 0, m_buffer.GetWidth(), m_buffer.GetHeight(), TRUE );
2362         }
2363         else
2364             Update( 0,0, m_buffer.GetWidth(), m_buffer.GetHeight(), TRUE );
2365     }
2366
2367     wxWindow::ScrollWindow( dx, dy, rect );
2368
2369     //must be done now because quick repeated scrolling will prevent wxPaint
2370     //from doing it properly
2371     UpdateNow();
2372 }
2373
2374 void wxVectorCanvas::OnSize(wxSizeEvent &event)
2375 {
2376     int w,h;
2377
2378     GetClientSize( &w, &h );
2379
2380     wxMemoryDC dc;
2381     m_buffer = wxBitmap( w, h );
2382     dc.SelectObject( m_buffer );
2383     dc.SetPen( *wxTRANSPARENT_PEN );
2384     wxBrush brush( m_background , wxSOLID );
2385     dc.SetBrush( brush );
2386     dc.DrawRectangle( 0, 0, m_buffer.GetWidth(), m_buffer.GetHeight() );
2387     dc.SelectObject( wxNullBitmap );
2388
2389     wxNode *node = m_updateRects.First();
2390     while (node)
2391     {
2392         wxRect *rect = (wxRect*) node->Data();
2393         delete rect;
2394         m_updateRects.DeleteNode( node );
2395         node = m_updateRects.First();
2396     }
2397
2398     m_frozen = FALSE;
2399
2400     m_admin->SetActive(this);
2401     SetMappingScroll(m_virt_minX,m_virt_minY,m_virt_maxX,m_virt_maxY,FALSE);
2402
2403     Update( 0,0, m_buffer.GetWidth(), m_buffer.GetHeight(), FALSE );
2404
2405 //    event.Skip();
2406 }
2407
2408 // maps the virtual window (Real drawing to the window coordinates
2409 // also used for zooming
2410 void wxVectorCanvas::SetMappingScroll( double vx1,    double vy1, double vx2, double vy2, bool border)
2411 {
2412     int dwxi,dwyi;
2413     GetClientSize(&dwxi,&dwyi);
2414
2415     if (vx2==vx1) vx2=vx1+100000;
2416     if (vy2==vy1) vy2=vy1+100000;
2417     m_virt_minX=vx1;
2418     m_virt_minY=vy1;
2419     m_virt_maxX=vx2;
2420     m_virt_maxY=vy2;
2421
2422     double dwx=dwxi;
2423     double dwy=dwyi;
2424     if (dwx==0) dwx=1;
2425     if (dwy==0) dwy=1;
2426
2427     double dvx = m_virt_maxX - m_virt_minX;
2428     double dvy = m_virt_maxY - m_virt_minY;
2429
2430     // calculate the scaling factor for the virtual window
2431     double temp_x=0;
2432     double temp_y=0;
2433     if ((dvy / dvx) < (dwy / dwx))
2434     {
2435         dvy = dvx * (dwy / dwx);
2436         // calculate the change in the coordinates
2437         temp_y = (dvy - (m_virt_maxY - m_virt_minY) )/ 2.0;
2438     }
2439     else
2440     {
2441         dvx = dvy * (dwx / dwy);
2442         // calculate the change in the coordinates
2443         temp_x = (dvx - (m_virt_maxX - m_virt_minX) )/ 2.0;
2444     }
2445
2446     // add or substract the change from the original coordinates
2447     m_virt_minX=m_virt_minX-temp_x;
2448     m_virt_minY=m_virt_minY-temp_y;
2449
2450     m_virt_maxX=m_virt_maxX+temp_x;
2451     m_virt_maxY=m_virt_maxY+temp_y;
2452
2453     // initialize the mapping_matrix used for mapping the
2454     // virtual windows to the drawing window
2455
2456      // make mappingmatrix
2457     m_mapping_matrix.Identity();
2458     if (!border)
2459     {
2460         // translate the drawing to 0,0
2461         if (m_yaxis)
2462             m_mapping_matrix.Translate(-m_virt_minX,-m_virt_maxY);
2463         else
2464             m_mapping_matrix.Translate(-m_virt_minX,-m_virt_minY);
2465     }
2466     else
2467     {
2468         // make a small white border around the drawing
2469         m_virt_minX=m_virt_minX- 0.05 * dvx;
2470         m_virt_minY=m_virt_minY- 0.05 * dvy;
2471
2472         m_virt_maxX=m_virt_maxX+ 0.05 * dvx;
2473         m_virt_maxY=m_virt_maxY+ 0.05 * dvy;
2474
2475         // translate the drawing to 0,0
2476         if (m_yaxis)
2477             m_mapping_matrix.Translate(-m_virt_minX,-m_virt_maxY);
2478         else
2479             m_mapping_matrix.Translate(-m_virt_minX,-m_virt_minY);
2480     }
2481
2482     double scalefactor_x = dwx;
2483     scalefactor_x /= (m_virt_maxX - m_virt_minX);
2484
2485     double scalefactor_y = dwy;
2486     scalefactor_y /= (m_virt_maxY - m_virt_minY);
2487
2488     // scale the drawing so it fit's in the window
2489     m_mapping_matrix.Scale(scalefactor_x, scalefactor_y, 0, 0);
2490
2491     // because of coordinate change mirror over X
2492     // 0,0 in graphic computerscreens: upperleft corner
2493     // 0,0 in cartesian: lowerleft corner
2494     if (m_yaxis)
2495     {
2496         m_mapping_matrix.Mirror();
2497     }
2498     // make inverse of mapping matrix
2499     // this is to set coordinates in the statusbar
2500     // and the calculate screencoordinates to world coordinates used
2501     // in zooming
2502     m_inverse_mapping=m_mapping_matrix;
2503     m_inverse_mapping.Invert();
2504
2505     if (m_scrolled)
2506         SetScroll(m_virtm_minX,m_virtm_minY,m_virtm_maxX,m_virtm_maxY);
2507
2508     int dx2,dy2;
2509     GetClientSize(&dx2,&dy2);
2510     if ( dwxi != dx2 || dwyi  != dy2) //scrollbar is/became empty
2511         SetScroll(m_virtm_minX,m_virtm_minY,m_virtm_maxX,m_virtm_maxY);
2512 }
2513
2514
2515 void wxVectorCanvas::SetScroll(double vx1,double vy1,double vx2,double vy2)
2516 {
2517     m_virtm_minX=vx1;
2518     m_virtm_minY=vy1;
2519     m_virtm_maxX=vx2;
2520     m_virtm_maxY=vy2;
2521
2522     double dvx = m_virt_maxX - m_virt_minX;
2523     double dvy = m_virt_maxY - m_virt_minY;
2524     double dmvx = m_virtm_maxX - m_virtm_minX;
2525     double dmvy = m_virtm_maxY - m_virtm_minY;
2526
2527     SetScrollbar(wxHORIZONTAL,(m_virt_minX-m_virtm_minX)/dmvx *1000,dvx/dmvx *1000,1000,FALSE);
2528     if (m_yaxis)
2529     {
2530         SetScrollbar(wxVERTICAL,(m_virtm_maxY-m_virt_maxY)/dmvy *1000,dvy/dmvy *1000,1000,FALSE);
2531     }
2532     else
2533     {
2534         SetScrollbar(wxVERTICAL,(m_virt_minY-m_virtm_minY)/dmvy *1000,dvy/dmvy *1000,1000,FALSE);
2535     }
2536
2537     m_scrolled=TRUE;
2538 }
2539
2540 // coordinates conversions
2541 // -----------------------
2542 double wxVectorCanvas::DeviceToLogicalX(int x) const
2543 {
2544     return m_inverse_mapping.GetValue(0,0) * x + m_inverse_mapping.GetValue(2,0);
2545 }
2546
2547 double wxVectorCanvas::DeviceToLogicalY(int y) const
2548 {
2549     return m_inverse_mapping.GetValue(1,1) * y + m_inverse_mapping.GetValue(2,1);
2550 }
2551
2552 double wxVectorCanvas::DeviceToLogicalXRel(int x) const
2553 {
2554     return x*m_inverse_mapping.GetValue(0,0);
2555 }
2556
2557 double wxVectorCanvas::DeviceToLogicalYRel(int y) const
2558 {
2559     return y*m_inverse_mapping.GetValue(1,1);
2560 }
2561
2562 int wxVectorCanvas::LogicalToDeviceX(double x) const
2563 {
2564     return (int) (m_mapping_matrix.GetValue(0,0) * x + m_mapping_matrix.GetValue(2,0) + 0.5);
2565 }
2566
2567 int wxVectorCanvas::LogicalToDeviceY(double y) const
2568 {
2569     return (int) (m_mapping_matrix.GetValue(1,1) * y + m_mapping_matrix.GetValue(2,1) + 0.5);
2570 }
2571
2572 int wxVectorCanvas::LogicalToDeviceXRel(double x) const
2573 {
2574     return (int) (x*m_mapping_matrix.GetValue(0,0) + 0.5);
2575 }
2576
2577 int wxVectorCanvas::LogicalToDeviceYRel(double y) const
2578 {
2579     return (int) (y*m_mapping_matrix.GetValue(1,1) + 0.5);
2580 }
2581
2582
2583 // return the inverse mapping matrix for zooming or coordinates
2584 wxTransformMatrix wxVectorCanvas::GetInverseMappingMatrix()
2585 {
2586     return m_inverse_mapping;
2587 }
2588
2589 wxTransformMatrix wxVectorCanvas::GetMappingMatrix()
2590 {
2591     return m_mapping_matrix;
2592 }
2593
2594
2595 // ----------------------------------------------------------------------------
2596 // scrolling behaviour
2597 // ----------------------------------------------------------------------------
2598
2599 void wxVectorCanvas::OnScroll(wxScrollWinEvent& event)
2600 {
2601     if (event.GetEventType()==wxEVT_SCROLLWIN_THUMBRELEASE)
2602     {
2603         if (event.GetOrientation()==wxHORIZONTAL)
2604         {
2605           double x=m_virtm_minX+event.GetPosition()/1000.0*(m_virtm_maxX-m_virtm_minX);
2606           x=LogicalToDeviceXRel(x-m_virt_minX);
2607           ScrollWindow(-x, 0, (const wxRect *) NULL);
2608         }
2609         else
2610         {
2611           double y=m_virtm_minY+event.GetPosition()/1000.0*(m_virtm_maxY-m_virtm_minY);
2612           y=LogicalToDeviceYRel(y-m_virt_minY);
2613           ScrollWindow(0, -y, (const wxRect *) NULL);
2614         }
2615     }
2616     else if (event.GetEventType()==wxEVT_SCROLLWIN_PAGEUP)
2617     {
2618         if (event.GetOrientation()==wxHORIZONTAL)
2619         {
2620           double x=GetBufferWidth();
2621           ScrollWindow(x, 0, (const wxRect *) NULL);
2622         }
2623         else
2624         {
2625           double y=GetBufferHeight();
2626           ScrollWindow(0, y, (const wxRect *) NULL);
2627         }
2628     }
2629     else if (event.GetEventType()==wxEVT_SCROLLWIN_PAGEDOWN)
2630     {
2631         if (event.GetOrientation()==wxHORIZONTAL)
2632         {
2633           double x=-GetBufferWidth();
2634           ScrollWindow(x, 0, (const wxRect *) NULL);
2635         }
2636         else
2637         {
2638           double y=-GetBufferHeight();
2639           ScrollWindow(0, y, (const wxRect *) NULL);
2640         }
2641     }
2642     else if (event.GetEventType()==wxEVT_SCROLLWIN_LINEUP)
2643     {
2644         if (event.GetOrientation()==wxHORIZONTAL)
2645         {
2646           int x=GetBufferWidth()/10;
2647           ScrollWindow(x, 0, (const wxRect *) NULL);
2648         }
2649         else
2650         {
2651           int y=GetBufferHeight()/10;
2652           ScrollWindow(0, y, (const wxRect *) NULL);
2653         }
2654     }
2655     else if (event.GetEventType()==wxEVT_SCROLLWIN_LINEDOWN)
2656     {
2657         if (event.GetOrientation()==wxHORIZONTAL)
2658         {
2659           int x=-GetBufferWidth()/10;
2660           ScrollWindow(x, 0, (const wxRect *) NULL);
2661         }
2662         else
2663         {
2664           int y=-GetBufferHeight()/10;
2665           ScrollWindow(0, y, (const wxRect *) NULL);
2666         }
2667     }
2668
2669 }
2670
2671 void wxVectorCanvas::OnChar(wxKeyEvent& event)
2672 {
2673     switch ( event.KeyCode() )
2674     {
2675         case WXK_PAGEUP:
2676         case WXK_PRIOR:
2677             {
2678               double y=GetBufferHeight();
2679               ScrollWindow(0, y, (const wxRect *) NULL);
2680             }
2681             break;
2682         case WXK_PAGEDOWN:
2683         case WXK_NEXT:
2684             {
2685               double y=-GetBufferHeight();
2686               ScrollWindow(0, y, (const wxRect *) NULL);
2687             }
2688             break;
2689         case WXK_HOME:
2690             {
2691                 double y=m_virtm_minY;
2692                 y=LogicalToDeviceYRel(y-m_virt_minY);
2693                 ScrollWindow(0, -y, (const wxRect *) NULL);
2694             }
2695             break;
2696         case WXK_END:
2697             {
2698                 double y=m_virtm_minY+(m_virtm_maxY-m_virtm_minY);
2699                 y=LogicalToDeviceYRel(y-m_virt_minY);
2700                 ScrollWindow(0, -y, (const wxRect *) NULL);
2701             }
2702             break;
2703         case WXK_UP:
2704             {
2705                 int y;
2706                 if  (!event.ControlDown())
2707                     y=GetBufferHeight()/10;
2708                 else
2709                     y=GetBufferHeight();
2710                 ScrollWindow(0, y, (const wxRect *) NULL);
2711             }
2712             break;
2713
2714         case WXK_DOWN:
2715             {
2716                 int y;
2717                 if  (!event.ControlDown())
2718                     y=-GetBufferHeight()/10;
2719                 else
2720                     y=-GetBufferHeight();
2721                 ScrollWindow(0, y, (const wxRect *) NULL);
2722             }
2723             break;
2724
2725         case WXK_LEFT:
2726             {
2727                 int x;
2728                 if  (!event.ControlDown())
2729                     x=GetBufferWidth()/10;
2730                 else
2731                     x=GetBufferWidth();
2732                 ScrollWindow(x, 0, (const wxRect *) NULL);
2733             }
2734             break;
2735         case WXK_RIGHT:
2736             {
2737                 int x;
2738                 if  (!event.ControlDown())
2739                     x=-GetBufferWidth()/10;
2740                 else
2741                     x=-GetBufferWidth();
2742                 ScrollWindow(x, 0, (const wxRect *) NULL);
2743             }
2744             break;
2745         default:
2746             // not for us
2747             event.Skip();
2748     }
2749 }
2750
2751
2752 //----------------------------------------------------------------------------
2753 // wxCanvasAdmin
2754 //----------------------------------------------------------------------------
2755
2756 wxCanvasAdmin::wxCanvasAdmin()
2757 {
2758
2759 }
2760
2761 wxCanvasAdmin::~wxCanvasAdmin()
2762 {
2763 }
2764
2765
2766 void wxCanvasAdmin::Append( wxCanvas* canvas )
2767 {
2768     m_canvaslist.Append( canvas );
2769 }
2770
2771 void wxCanvasAdmin::Remove( wxCanvas* canvas )
2772 {
2773     m_canvaslist.DeleteObject( canvas );
2774 }
2775
2776 void wxCanvasAdmin::Update(wxCanvasObject* obj, double x, double y, double width, double height)
2777 {
2778     wxNode *node = m_canvaslist.First();
2779     while (node)
2780     {
2781
2782         wxCanvas *canvas = (wxCanvas*) node->Data();
2783
2784         if (m_active == canvas)
2785         {
2786             int xi = canvas->LogicalToDeviceX( x);
2787             int yi = canvas->LogicalToDeviceY( y);
2788             int wi = canvas->LogicalToDeviceXRel( width );
2789             int hi = canvas->LogicalToDeviceYRel( height);
2790             //update a little more then is strictly needed,
2791             //to get rid of the 1 bit bugs
2792             if (canvas->GetYaxis())
2793                 canvas->Update( xi-2, yi+hi-2, wi+4, -hi+4);
2794             else
2795                 canvas->Update( xi-2, yi-2, wi+4, hi+4);
2796         }
2797         else
2798         {   wxCanvasObject* topobj=canvas->GetRoot()->Contains(obj);
2799             if (topobj)
2800             {
2801                 wxCanvas* tcanvas = m_active;
2802                 SetActive(canvas);
2803
2804                 /*
2805                 //KKK TODO somehow the next does not work for update i do not know why
2806                 canvas->GetRoot()->CalcBoundingBox();
2807                 int xi = topobj->GetX();
2808                 int yi = topobj->GetY();
2809                 int wi = topobj->GetWidth();
2810                 int hi = topobj->GetHeight();
2811                 */
2812                 canvas->Update( 0,0, canvas->GetBufferWidth(),canvas->GetBufferHeight());
2813                 SetActive(tcanvas);
2814             }
2815         }
2816
2817         node = node->Next();
2818     }
2819 }
2820
2821 void wxCanvasAdmin::UpdateNow()
2822 {
2823     wxNode *node = m_canvaslist.First();
2824     while (node)
2825     {
2826         wxCanvas *canvas = (wxCanvas*) node->Data();
2827
2828         canvas->UpdateNow();
2829         node = node->Next();
2830     }
2831 }
2832
2833 // coordinates conversions
2834 // -----------------------
2835 double wxCanvasAdmin::DeviceToLogicalX(int x) const
2836 {
2837     return m_active->DeviceToLogicalX(x);
2838 }
2839
2840 double wxCanvasAdmin::DeviceToLogicalY(int y) const
2841 {
2842     return m_active->DeviceToLogicalY(y);
2843 }
2844
2845 double wxCanvasAdmin::DeviceToLogicalXRel(int x) const
2846 {
2847     return m_active->DeviceToLogicalXRel(x);
2848 }
2849
2850 double wxCanvasAdmin::DeviceToLogicalYRel(int y) const
2851 {
2852     return m_active->DeviceToLogicalYRel(y);
2853 }
2854
2855 int wxCanvasAdmin::LogicalToDeviceX(double x) const
2856 {
2857     return m_active->LogicalToDeviceX(x);
2858 }
2859
2860 int wxCanvasAdmin::LogicalToDeviceY(double y) const
2861 {
2862     return m_active->LogicalToDeviceY(y);
2863 }
2864
2865 int wxCanvasAdmin::LogicalToDeviceXRel(double x) const
2866 {
2867     return m_active->LogicalToDeviceXRel(x);
2868 }
2869
2870 int wxCanvasAdmin::LogicalToDeviceYRel(double y) const
2871 {
2872     return m_active->LogicalToDeviceYRel(y);
2873 }
2874
2875 void wxCanvasAdmin::SetActive(wxCanvas* activate)
2876 {
2877     wxNode *node = m_canvaslist.First();
2878     while (node)
2879     {
2880         wxCanvas *canvas = (wxCanvas*) node->Data();
2881
2882         if (activate == canvas)
2883         {
2884             m_active=canvas;
2885             break;
2886         }
2887         node = node->Next();
2888     }
2889 }
2890 //--------------------------------------------------------------------
2891 // wxCanvasModule
2892 //--------------------------------------------------------------------
2893
2894 class wxCanvasModule : public wxModule
2895 {
2896 public:
2897     virtual bool OnInit();
2898     virtual void OnExit();
2899
2900 private:
2901     DECLARE_DYNAMIC_CLASS(wxCanvasModule)
2902 };
2903
2904 IMPLEMENT_DYNAMIC_CLASS(wxCanvasModule, wxModule)
2905
2906 bool wxCanvasModule::OnInit()
2907 {
2908 #if wxUSE_FREETYPE
2909     int error = FT_Init_FreeType( &g_freetypeLibrary );
2910     if (error) return FALSE;
2911 #endif
2912
2913     return TRUE;
2914 }
2915
2916 void wxCanvasModule::OnExit()
2917 {
2918 #if wxUSE_FREETYPE
2919     FT_Done_FreeType( g_freetypeLibrary );
2920 #endif
2921 }
2922
2923
2924
2925