src/mac/carbon/dccg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/dccg.cpp
   3 // Purpose:     wxDC class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/dc.h"
  15
  16 #if wxMAC_USE_CORE_GRAPHICS
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/log.h"
  20     #include "wx/app.h"
  21     #include "wx/dcmemory.h"
  22     #include "wx/dcprint.h"
  23     #include "wx/region.h"
  24     #include "wx/image.h"
  25 #endif
  26
  27 #include "wx/mac/uma.h"
  28
  29
  30 #ifdef __MSL__
  31     #if __MSL__ >= 0x6000
  32         #include "math.h"
  33         // in case our functions were defined outside std, we make it known all the same
  34         namespace std { }
  35         using namespace std ;
  36     #endif
  37 #endif
  38
  39 #include "wx/mac/private.h"
  40
  41 IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
  42
  43 #ifndef wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
  44 #define wxMAC_USE_CORE_GRAPHICS_BLEND_MODES 0
  45 #endif
  46
  47 #if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4
  48 typedef float CGFloat ;
  49 #endif
  50
  51 //-----------------------------------------------------------------------------
  52 // constants
  53 //-----------------------------------------------------------------------------
  54
  55 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
  56 #ifndef M_PI
  57 const double M_PI = 3.14159265358979 ;
  58 #endif
  59 #endif
  60
  61 const double RAD2DEG = 180.0 / M_PI;
  62 const short kEmulatedMode = -1 ;
  63 const short kUnsupportedMode = -2 ;
  64
  65 extern TECObjectRef s_TECNativeCToUnicode ;
  66
  67
  68 // TODO: update
  69 // The textctrl implementation still needs that (needs what?) for the non-HIView implementation
  70 //
  71 wxMacWindowClipper::wxMacWindowClipper( const wxWindow* win ) :
  72     wxMacPortSaver( (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) )
  73 {
  74     m_newPort = (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) ;
  75     m_formerClip = NewRgn() ;
  76     m_newClip = NewRgn() ;
  77     GetClip( m_formerClip ) ;
  78
  79     if ( win )
  80     {
  81         // guard against half constructed objects, this just leads to a empty clip
  82         if ( win->GetPeer() )
  83         {
  84             int x = 0 , y = 0;
  85             win->MacWindowToRootWindow( &x, &y ) ;
  86
  87             // get area including focus rect
  88             CopyRgn( (RgnHandle) ((wxWindow*)win)->MacGetVisibleRegion(true).GetWXHRGN() , m_newClip ) ;
  89             if ( !EmptyRgn( m_newClip ) )
  90                 OffsetRgn( m_newClip , x , y ) ;
  91         }
  92
  93         SetClip( m_newClip ) ;
  94     }
  95 }
  96
  97 wxMacWindowClipper::~wxMacWindowClipper()
  98 {
  99     SetPort( m_newPort ) ;
 100     SetClip( m_formerClip ) ;
 101     DisposeRgn( m_newClip ) ;
 102     DisposeRgn( m_formerClip ) ;
 103 }
 104
 105 wxMacWindowStateSaver::wxMacWindowStateSaver( const wxWindow* win ) :
 106     wxMacWindowClipper( win )
 107 {
 108     // the port is already set at this point
 109     m_newPort = (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) ;
 110     GetThemeDrawingState( &m_themeDrawingState ) ;
 111 }
 112
 113 wxMacWindowStateSaver::~wxMacWindowStateSaver()
 114 {
 115     SetPort( m_newPort ) ;
 116     SetThemeDrawingState( m_themeDrawingState , true ) ;
 117 }
 118
 119 // minimal implementation only used for appearance drawing < 10.3
 120
 121 wxMacPortSetter::wxMacPortSetter( const wxDC* dc ) :
 122     m_ph( (GrafPtr) dc->m_macPort )
 123 {
 124     wxASSERT( dc->Ok() ) ;
 125     m_dc = dc ;
 126
 127 //    dc->MacSetupPort(&m_ph) ;
 128 }
 129
 130 wxMacPortSetter::~wxMacPortSetter()
 131 {
 132 //    m_dc->MacCleanupPort(&m_ph) ;
 133 }
 134
 135 //-----------------------------------------------------------------------------
 136 // Local functions
 137 //-----------------------------------------------------------------------------
 138
 139 static inline double dmin(double a, double b) { return a < b ? a : b; }
 140 static inline double dmax(double a, double b) { return a > b ? a : b; }
 141 static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
 142
 143 //-----------------------------------------------------------------------------
 144 // device context implementation
 145 //
 146 // more and more of the dc functionality should be implemented by calling
 147 // the appropricate wxMacCGContext, but we will have to do that step by step
 148 // also coordinate conversions should be moved to native matrix ops
 149 //-----------------------------------------------------------------------------
 150
 151 // we always stock two context states, one at entry, to be able to preserve the
 152 // state we were called with, the other one after changing to HI Graphics orientation
 153 // (this one is used for getting back clippings etc)
 154
 155 //-----------------------------------------------------------------------------
 156 // wxGraphicPath implementation
 157 //-----------------------------------------------------------------------------
 158
 159 wxMacCGPath::wxMacCGPath()
 160 {
 161     m_path = CGPathCreateMutable() ;
 162 }
 163
 164 wxMacCGPath::~wxMacCGPath()
 165 {
 166     CGPathRelease( m_path ) ;
 167 }
 168
 169 // opens (starts) a new subpath
 170 void wxMacCGPath::MoveToPoint( wxCoord x1 , wxCoord y1 )
 171 {
 172     CGPathMoveToPoint( m_path , NULL , x1 , y1 ) ;
 173 }
 174
 175 void wxMacCGPath::AddLineToPoint( wxCoord x1 , wxCoord y1 )
 176 {
 177     CGPathAddLineToPoint( m_path , NULL , x1 , y1 ) ;
 178 }
 179
 180 void wxMacCGPath::AddQuadCurveToPoint( wxCoord cx1, wxCoord cy1, wxCoord x1, wxCoord y1 )
 181 {
 182     CGPathAddQuadCurveToPoint( m_path , NULL , cx1 , cy1 , x1 , y1 );
 183 }
 184
 185 void wxMacCGPath::AddRectangle( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 186 {
 187     CGRect cgRect = { { x , y } , { w , h } } ;
 188     CGPathAddRect( m_path , NULL , cgRect ) ;
 189 }
 190
 191 void wxMacCGPath::AddCircle( wxCoord x, wxCoord y , wxCoord r )
 192 {
 193     CGPathAddArc( m_path , NULL , x , y , r , 0.0 , 2 * M_PI , true ) ;
 194 }
 195
 196 // closes the current subpath
 197 void wxMacCGPath::CloseSubpath()
 198 {
 199     CGPathCloseSubpath( m_path ) ;
 200 }
 201
 202 CGPathRef wxMacCGPath::GetPath() const
 203 {
 204     return m_path ;
 205 }
 206
 207 void wxMacCGPath::AddArcToPoint( wxCoord x1, wxCoord y1 , wxCoord x2, wxCoord y2, wxCoord r )
 208 {
 209     CGPathAddArcToPoint( m_path, NULL , x1, y1, x2, y2, r);
 210 }
 211
 212 void wxMacCGPath::AddArc( wxCoord x, wxCoord y, wxCoord r, double startAngle, double endAngle, bool clockwise )
 213 {
 214     CGPathAddArc( m_path, NULL , x, y, r, startAngle, endAngle, clockwise);
 215 }
 216
 217 //-----------------------------------------------------------------------------
 218 // wxGraphicContext implementation
 219 //-----------------------------------------------------------------------------
 220
 221 wxMacCGContext::wxMacCGContext( CGrafPtr port )
 222 {
 223     m_qdPort = port ;
 224     m_cgContext = NULL ;
 225     m_mode = kCGPathFill;
 226     m_macATSUIStyle = NULL ;
 227 }
 228
 229 wxMacCGContext::wxMacCGContext( CGContextRef cgcontext )
 230 {
 231     m_qdPort = NULL ;
 232     m_cgContext = cgcontext ;
 233     m_mode = kCGPathFill;
 234     m_macATSUIStyle = NULL ;
 235     CGContextSaveGState( m_cgContext ) ;
 236     CGContextSaveGState( m_cgContext ) ;
 237 }
 238
 239 wxMacCGContext::wxMacCGContext()
 240 {
 241     m_qdPort = NULL ;
 242     m_cgContext = NULL ;
 243     m_mode = kCGPathFill;
 244     m_macATSUIStyle = NULL ;
 245 }
 246
 247 wxMacCGContext::~wxMacCGContext()
 248 {
 249     if ( m_cgContext )
 250     {
 251         CGContextSynchronize( m_cgContext ) ;
 252         CGContextRestoreGState( m_cgContext ) ;
 253         CGContextRestoreGState( m_cgContext ) ;
 254     }
 255
 256     if ( m_qdPort )
 257         QDEndCGContext( m_qdPort, &m_cgContext ) ;
 258 }
 259
 260
 261 void wxMacCGContext::Clip( const wxRegion &region )
 262 {
 263 //    ClipCGContextToRegion ( m_cgContext, &bounds , (RgnHandle) dc->m_macCurrentClipRgn ) ;
 264 }
 265
 266 void wxMacCGContext::StrokePath( const wxGraphicPath *p )
 267 {
 268     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 269
 270     int width = m_pen.GetWidth();
 271     if ( width == 0 )
 272         width = 1 ;
 273     if ( m_pen.GetStyle() == wxTRANSPARENT )
 274         width = 0 ;
 275
 276     bool offset = ( width % 2 ) == 1 ;
 277
 278     if ( offset )
 279         CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
 280
 281     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 282     CGContextStrokePath( m_cgContext ) ;
 283
 284     if ( offset )
 285         CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
 286 }
 287
 288 void wxMacCGContext::DrawPath( const wxGraphicPath *p , int fillStyle )
 289 {
 290     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 291     CGPathDrawingMode mode = m_mode ;
 292
 293     if ( fillStyle == wxODDEVEN_RULE )
 294     {
 295         if ( mode == kCGPathFill )
 296             mode = kCGPathEOFill ;
 297         else if ( mode == kCGPathFillStroke )
 298             mode = kCGPathEOFillStroke ;
 299     }
 300
 301     int width = m_pen.GetWidth();
 302     if ( width == 0 )
 303         width = 1 ;
 304     if ( m_pen.GetStyle() == wxTRANSPARENT )
 305         width = 0 ;
 306
 307     bool offset = ( width % 2 ) == 1 ;
 308
 309     if ( offset )
 310         CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
 311
 312     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 313     CGContextDrawPath( m_cgContext , mode ) ;
 314
 315     if ( offset )
 316         CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
 317 }
 318
 319 void wxMacCGContext::FillPath( const wxGraphicPath *p , const wxColor &fillColor , int fillStyle )
 320 {
 321     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 322     CGContextSaveGState( m_cgContext ) ;
 323
 324     RGBColor col = MAC_WXCOLORREF( fillColor.GetPixel() ) ;
 325     CGContextSetRGBFillColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 326     CGPathDrawingMode mode = kCGPathFill ;
 327
 328     if ( fillStyle == wxODDEVEN_RULE )
 329         mode = kCGPathEOFill ;
 330
 331     CGContextBeginPath( m_cgContext ) ;
 332     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 333     CGContextClosePath( m_cgContext ) ;
 334     CGContextDrawPath( m_cgContext , mode ) ;
 335
 336     CGContextRestoreGState( m_cgContext ) ;
 337 }
 338
 339 wxGraphicPath* wxMacCGContext::CreatePath()
 340 {
 341     // make sure that we now have a real cgref, before doing
 342     // anything with paths
 343     CGContextRef cg = GetNativeContext() ;
 344     cg = NULL ;
 345
 346     return new wxMacCGPath() ;
 347 }
 348
 349 // in case we only got a QDPort only create a cgref now
 350
 351 CGContextRef wxMacCGContext::GetNativeContext()
 352 {
 353     if ( m_cgContext == NULL )
 354     {
 355         Rect bounds ;
 356         GetPortBounds( (CGrafPtr) m_qdPort , &bounds ) ;
 357         OSStatus status = QDBeginCGContext((CGrafPtr) m_qdPort , &m_cgContext) ;
 358         CGContextSaveGState( m_cgContext ) ;
 359
 360         wxASSERT_MSG( status == noErr , wxT("Cannot nest wxDCs on the same window") ) ;
 361
 362         CGContextTranslateCTM( m_cgContext , 0 , bounds.bottom - bounds.top ) ;
 363         CGContextScaleCTM( m_cgContext , 1 , -1 ) ;
 364
 365         CGContextSaveGState( m_cgContext ) ;
 366         SetPen( m_pen ) ;
 367         SetBrush( m_brush ) ;
 368     }
 369
 370     return m_cgContext ;
 371 }
 372
 373 void wxMacCGContext::SetNativeContext( CGContextRef cg )
 374 {
 375     // we allow either setting or clearing but not replacing
 376     wxASSERT( m_cgContext == NULL || cg == NULL ) ;
 377
 378     if ( cg )
 379         CGContextSaveGState( cg ) ;
 380     m_cgContext = cg ;
 381 }
 382
 383 void wxMacCGContext::Translate( wxCoord dx , wxCoord dy )
 384 {
 385     CGContextTranslateCTM( m_cgContext, dx, dy );
 386 }
 387
 388 void wxMacCGContext::Scale( wxCoord xScale , wxCoord yScale )
 389 {
 390     CGContextScaleCTM( m_cgContext , xScale , yScale ) ;
 391 }
 392
 393 void wxMacCGContext::DrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 394 {
 395     CGImageRef image = (CGImageRef)( bmp.CGImageCreate() ) ;
 396     HIRect r = CGRectMake( x , y , w , h ) ;
 397     HIViewDrawCGImage( m_cgContext , &r , image ) ;
 398     CGImageRelease( image ) ;
 399 }
 400
 401 void wxMacCGContext::DrawIcon( const wxIcon &icon, wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 402 {
 403     CGRect r = CGRectMake( 00 , 00 , w , h ) ;
 404     CGContextSaveGState( m_cgContext );
 405     CGContextTranslateCTM( m_cgContext, x , y + h );
 406     CGContextScaleCTM( m_cgContext, 1, -1 );
 407     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
 408         NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) ) ;
 409     CGContextRestoreGState( m_cgContext ) ;
 410 }
 411
 412 void wxMacCGContext::PushState()
 413 {
 414     CGContextSaveGState( m_cgContext );
 415 }
 416
 417 void wxMacCGContext::PopState()
 418 {
 419     CGContextRestoreGState( m_cgContext );
 420 }
 421
 422 void wxMacCGContext::SetTextColor( const wxColour &col )
 423 {
 424     m_textForegroundColor = col ;
 425 }
 426
 427 #pragma mark -
 428 #pragma mark wxMacCGPattern, ImagePattern, HatchPattern classes
 429
 430 // CGPattern wrapper class: always allocate on heap, never call destructor
 431
 432 class wxMacCGPattern
 433 {
 434 public :
 435     wxMacCGPattern() {}
 436
 437     // is guaranteed to be called only with a non-Null CGContextRef
 438     virtual void Render( CGContextRef ctxRef ) = 0 ;
 439
 440     operator CGPatternRef() const { return m_patternRef ; }
 441
 442 protected :
 443     virtual ~wxMacCGPattern()
 444     {
 445         // as this is called only when the m_patternRef is been released;
 446         // don't release it again
 447     }
 448
 449     static void _Render( void *info, CGContextRef ctxRef )
 450     {
 451         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 452         if ( self && ctxRef )
 453             self->Render( ctxRef ) ;
 454     }
 455
 456     static void _Dispose( void *info )
 457     {
 458         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 459         delete self ;
 460     }
 461
 462     CGPatternRef m_patternRef ;
 463
 464     static const CGPatternCallbacks ms_Callbacks ;
 465 } ;
 466
 467 const CGPatternCallbacks wxMacCGPattern::ms_Callbacks = { 0, &wxMacCGPattern::_Render, &wxMacCGPattern::_Dispose };
 468
 469 class ImagePattern : public wxMacCGPattern
 470 {
 471 public :
 472     ImagePattern( const wxBitmap* bmp , CGAffineTransform transform )
 473     {
 474         wxASSERT( bmp && bmp->Ok() ) ;
 475
 476         Init( (CGImageRef) bmp->CGImageCreate() , transform ) ;
 477     }
 478
 479     // ImagePattern takes ownership of CGImageRef passed in
 480     ImagePattern( CGImageRef image , CGAffineTransform transform )
 481     {
 482         if ( image )
 483             CFRetain( image ) ;
 484
 485         Init( image , transform ) ;
 486     }
 487
 488     virtual void Render( CGContextRef ctxRef )
 489     {
 490         if (m_image != NULL)
 491             HIViewDrawCGImage( ctxRef, &m_imageBounds, m_image );
 492     }
 493
 494 protected :
 495     void Init( CGImageRef image, CGAffineTransform transform )
 496     {
 497         m_image = image ;
 498         if ( m_image )
 499         {
 500             m_imageBounds = CGRectMake( 0.0, 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) ) ;
 501             m_patternRef = CGPatternCreate(
 502                 this , m_imageBounds, transform ,
 503                 m_imageBounds.size.width, m_imageBounds.size.height,
 504                 kCGPatternTilingNoDistortion, true , &wxMacCGPattern::ms_Callbacks ) ;
 505         }
 506     }
 507
 508     virtual ~ImagePattern()
 509     {
 510         if ( m_image )
 511             CGImageRelease( m_image ) ;
 512     }
 513
 514     CGImageRef m_image ;
 515     CGRect m_imageBounds ;
 516 } ;
 517
 518 class HatchPattern : public wxMacCGPattern
 519 {
 520 public :
 521     HatchPattern( int hatchstyle, CGAffineTransform transform )
 522     {
 523         m_hatch = hatchstyle ;
 524         m_imageBounds = CGRectMake( 0.0, 0.0, 8.0 , 8.0 ) ;
 525         m_patternRef = CGPatternCreate(
 526             this , m_imageBounds, transform ,
 527             m_imageBounds.size.width, m_imageBounds.size.height,
 528             kCGPatternTilingNoDistortion, false , &wxMacCGPattern::ms_Callbacks ) ;
 529     }
 530
 531     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 532     {
 533 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
 534         if ( UMAGetSystemVersion() >= 0x1040 )
 535         {
 536             CGContextStrokeLineSegments( ctxRef , pts , count ) ;
 537         }
 538         else
 539 #endif
 540         {
 541             CGContextBeginPath( ctxRef );
 542             for (size_t i = 0; i < count; i += 2)
 543             {
 544                 CGContextMoveToPoint(ctxRef, pts[i].x, pts[i].y);
 545                 CGContextAddLineToPoint(ctxRef, pts[i+1].x, pts[i+1].y);
 546             }
 547             CGContextStrokePath(ctxRef);
 548         }
 549     }
 550
 551     virtual void Render( CGContextRef ctxRef )
 552     {
 553         switch ( m_hatch )
 554         {
 555             case wxBDIAGONAL_HATCH :
 556                 {
 557                     CGPoint pts[] =
 558                     {
 559                     { 8.0 , 0.0 } , { 0.0 , 8.0 }
 560                     };
 561                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 562                 }
 563                 break ;
 564
 565             case wxCROSSDIAG_HATCH :
 566                 {
 567                     CGPoint pts[] =
 568                     {
 569                         { 0.0 , 0.0 } , { 8.0 , 8.0 } ,
 570                         { 8.0 , 0.0 } , { 0.0 , 8.0 }
 571                     };
 572                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 573                 }
 574                 break ;
 575
 576             case wxFDIAGONAL_HATCH :
 577                 {
 578                     CGPoint pts[] =
 579                     {
 580                     { 0.0 , 0.0 } , { 8.0 , 8.0 }
 581                     };
 582                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 583                 }
 584                 break ;
 585
 586             case wxCROSS_HATCH :
 587                 {
 588                     CGPoint pts[] =
 589                     {
 590                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 591                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 592                     };
 593                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 594                 }
 595                 break ;
 596
 597             case wxHORIZONTAL_HATCH :
 598                 {
 599                     CGPoint pts[] =
 600                     {
 601                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 602                     };
 603                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 604                 }
 605                 break ;
 606
 607             case wxVERTICAL_HATCH :
 608                 {
 609                     CGPoint pts[] =
 610                     {
 611                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 612                     };
 613                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 614                 }
 615                 break ;
 616
 617             default:
 618                 break;
 619         }
 620     }
 621
 622 protected :
 623     virtual ~HatchPattern() {}
 624
 625     CGRect      m_imageBounds ;
 626     int         m_hatch ;
 627 };
 628
 629 #pragma mark -
 630
 631 void wxMacCGContext::SetPen( const wxPen &pen )
 632 {
 633     m_pen = pen ;
 634     if ( m_cgContext == NULL )
 635         return ;
 636
 637     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
 638     bool stroke = pen.GetStyle() != wxTRANSPARENT ;
 639
 640 #if 0
 641     // we can benchmark performance; should go into a setting eventually
 642     CGContextSetShouldAntialias( m_cgContext , false ) ;
 643 #endif
 644
 645     if ( fill | stroke )
 646     {
 647         // set up brushes
 648         m_mode = kCGPathFill ; // just a default
 649
 650         if ( stroke )
 651         {
 652             CGContextSetRGBStrokeColor( m_cgContext , pen.GetColour().Red() / 255.0 , pen.GetColour().Green() / 255.0 ,
 653                     pen.GetColour().Blue() / 255.0 , pen.GetColour().Alpha() / 255.0 ) ;
 654
 655             // TODO: * m_dc->m_scaleX
 656             CGFloat penWidth = pen.GetWidth();
 657             if (penWidth <= 0.0)
 658                 penWidth = 0.1;
 659             CGContextSetLineWidth( m_cgContext , penWidth ) ;
 660
 661             CGLineCap cap ;
 662             switch ( pen.GetCap() )
 663             {
 664                 case wxCAP_ROUND :
 665                     cap = kCGLineCapRound ;
 666                     break ;
 667
 668                 case wxCAP_PROJECTING :
 669                     cap = kCGLineCapSquare ;
 670                     break ;
 671
 672                 case wxCAP_BUTT :
 673                     cap = kCGLineCapButt ;
 674                     break ;
 675
 676                 default :
 677                     cap = kCGLineCapButt ;
 678                     break ;
 679             }
 680
 681             CGLineJoin join ;
 682             switch ( pen.GetJoin() )
 683             {
 684                 case wxJOIN_BEVEL :
 685                     join = kCGLineJoinBevel ;
 686                     break ;
 687
 688                 case wxJOIN_MITER :
 689                     join = kCGLineJoinMiter ;
 690                     break ;
 691
 692                 case wxJOIN_ROUND :
 693                     join = kCGLineJoinRound ;
 694                     break ;
 695
 696                 default :
 697                     join = kCGLineJoinMiter ;
 698                     break;
 699             }
 700
 701             m_mode = kCGPathStroke ;
 702             int count = 0 ;
 703
 704             const CGFloat *lengths = NULL ;
 705             CGFloat *userLengths = NULL ;
 706
 707             const CGFloat dashUnit = penWidth < 1.0 ? 1.0 : penWidth;
 708
 709             const CGFloat dotted[] = { dashUnit , dashUnit + 2.0 };
 710             const CGFloat short_dashed[] = { 9.0 , 6.0 };
 711             const CGFloat dashed[] = { 19.0 , 9.0 };
 712             const CGFloat dotted_dashed[] = { 9.0 , 6.0 , 3.0 , 3.0 };
 713
 714             switch ( pen.GetStyle() )
 715             {
 716                 case wxSOLID :
 717                     break ;
 718
 719                 case wxDOT :
 720                     lengths = dotted ;
 721                     count = WXSIZEOF(dotted);
 722                     break ;
 723
 724                 case wxLONG_DASH :
 725                     lengths = dashed ;
 726                     count = WXSIZEOF(dashed) ;
 727                     break ;
 728
 729                 case wxSHORT_DASH :
 730                     lengths = short_dashed ;
 731                     count = WXSIZEOF(short_dashed) ;
 732                     break ;
 733
 734                 case wxDOT_DASH :
 735                     lengths = dotted_dashed ;
 736                     count = WXSIZEOF(dotted_dashed);
 737                     break ;
 738
 739                 case wxUSER_DASH :
 740                     wxDash *dashes ;
 741                     count = pen.GetDashes( &dashes ) ;
 742                     if ((dashes != NULL) && (count > 0))
 743                     {
 744                         userLengths = new CGFloat[count] ;
 745                         for ( int i = 0 ; i < count ; ++i )
 746                         {
 747                             userLengths[i] = dashes[i] * dashUnit ;
 748
 749                             if ( i % 2 == 1 && userLengths[i] < dashUnit + 2.0 )
 750                                 userLengths[i] = dashUnit + 2.0 ;
 751                             else if ( i % 2 == 0 && userLengths[i] < dashUnit )
 752                                 userLengths[i] = dashUnit ;
 753                         }
 754                     }
 755                     lengths = userLengths ;
 756                     break ;
 757
 758                 case wxSTIPPLE :
 759                     {
 760                         CGFloat  alphaArray[1] = { 1.0 } ;
 761                         wxBitmap* bmp = pen.GetStipple() ;
 762                         if ( bmp && bmp->Ok() )
 763                         {
 764                             wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 765                             CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 766                             wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 767                             CGContextSetStrokePattern( m_cgContext, pattern , alphaArray ) ;
 768                         }
 769                     }
 770                     break ;
 771
 772                 default :
 773                     {
 774                         wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 775                         CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 776                         wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( pen.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 777
 778                         CGFloat  colorArray[4] = { pen.GetColour().Red() / 255.0 , pen.GetColour().Green() / 255.0 ,
 779                             pen.GetColour().Blue() / 255.0 , pen.GetColour().Alpha() / 255.0 } ;
 780
 781                         CGContextSetStrokePattern( m_cgContext, pattern , colorArray ) ;
 782                     }
 783                     break ;
 784             }
 785
 786             if ((lengths != NULL) && (count > 0))
 787             {
 788                 CGContextSetLineDash( m_cgContext , 0 , lengths , count ) ;
 789                 // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 790                 cap = kCGLineCapButt ;
 791             }
 792             else
 793             {
 794                CGContextSetLineDash( m_cgContext , 0 , NULL , 0 ) ;
 795             }
 796
 797             CGContextSetLineCap( m_cgContext , cap ) ;
 798             CGContextSetLineJoin( m_cgContext , join ) ;
 799
 800             delete[] userLengths ;
 801         }
 802
 803         if ( fill && stroke )
 804             m_mode = kCGPathFillStroke ;
 805     }
 806 }
 807
 808 void wxMacCGContext::SetBrush( const wxBrush &brush )
 809 {
 810     m_brush = brush ;
 811     if ( m_cgContext == NULL )
 812         return ;
 813
 814     bool fill = brush.GetStyle() != wxTRANSPARENT ;
 815     bool stroke = m_pen.GetStyle() != wxTRANSPARENT ;
 816
 817 #if 0
 818     // we can benchmark performance, should go into a setting later
 819     CGContextSetShouldAntialias( m_cgContext , false ) ;
 820 #endif
 821
 822     if ( fill | stroke )
 823     {
 824         // setup brushes
 825         m_mode = kCGPathFill ; // just a default
 826
 827         if ( fill )
 828         {
 829             if ( brush.GetStyle() == wxSOLID )
 830             {
 831                 CGContextSetRGBFillColor( m_cgContext , brush.GetColour().Red() / 255.0 , brush.GetColour().Green() / 255.0 ,
 832                     brush.GetColour().Blue() / 255.0 , brush.GetColour().Alpha() / 255.0 ) ;
 833             }
 834             else if ( brush.IsHatch() )
 835             {
 836                 wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 837                 CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 838                 wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( brush.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 839
 840                 CGFloat  colorArray[4] = { brush.GetColour().Red() / 255.0 , brush.GetColour().Green() / 255.0 ,
 841                     brush.GetColour().Blue() / 255.0 , brush.GetColour().Alpha() / 255.0 } ;
 842
 843                 CGContextSetFillPattern( m_cgContext, pattern , colorArray ) ;
 844             }
 845             else
 846             {
 847                 // now brush is a bitmap
 848                 CGFloat  alphaArray[1] = { 1.0 } ;
 849                 wxBitmap* bmp = brush.GetStipple() ;
 850                 if ( bmp && bmp->Ok() )
 851                 {
 852                     wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 853                     CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 854                     wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 855                     CGContextSetFillPattern( m_cgContext, pattern , alphaArray ) ;
 856                 }
 857             }
 858
 859             m_mode = kCGPathFill ;
 860         }
 861
 862         if ( fill && stroke )
 863             m_mode = kCGPathFillStroke ;
 864         else if ( stroke )
 865             m_mode = kCGPathStroke ;
 866     }
 867 }
 868
 869 void wxMacCGContext::DrawText( const wxString &str, wxCoord x, wxCoord y, double angle )
 870 {
 871     OSStatus status = noErr ;
 872     ATSUTextLayout atsuLayout ;
 873     UniCharCount chars = str.length() ;
 874     UniChar* ubuf = NULL ;
 875
 876 #if SIZEOF_WCHAR_T == 4
 877     wxMBConvUTF16 converter ;
 878 #if wxUSE_UNICODE
 879     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
 880     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
 881     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
 882 #else
 883     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
 884     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
 885     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
 886     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
 887 #endif
 888     chars = unicharlen / 2 ;
 889 #else
 890 #if wxUSE_UNICODE
 891     ubuf = (UniChar*) str.wc_str() ;
 892 #else
 893     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
 894     chars = wxWcslen( wchar.data() ) ;
 895     ubuf = (UniChar*) wchar.data() ;
 896 #endif
 897 #endif
 898
 899     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
 900         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
 901
 902     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
 903
 904     status = ::ATSUSetTransientFontMatching( atsuLayout , true ) ;
 905     wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
 906
 907     int iAngle = int( angle );
 908     if ( abs(iAngle) > 0 )
 909     {
 910         Fixed atsuAngle = IntToFixed( iAngle ) ;
 911         ATSUAttributeTag atsuTags[] =
 912         {
 913             kATSULineRotationTag ,
 914         } ;
 915         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 916         {
 917             sizeof( Fixed ) ,
 918         } ;
 919         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 920         {
 921             &atsuAngle ,
 922         } ;
 923         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
 924             atsuTags, atsuSizes, atsuValues ) ;
 925     }
 926
 927     {
 928         ATSUAttributeTag atsuTags[] =
 929         {
 930             kATSUCGContextTag ,
 931         } ;
 932         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 933         {
 934             sizeof( CGContextRef ) ,
 935         } ;
 936         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 937         {
 938             &m_cgContext ,
 939         } ;
 940         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
 941             atsuTags, atsuSizes, atsuValues ) ;
 942     }
 943
 944     ATSUTextMeasurement textBefore, textAfter ;
 945     ATSUTextMeasurement ascent, descent ;
 946
 947     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
 948         &textBefore , &textAfter, &ascent , &descent );
 949
 950     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
 951
 952     Rect rect ;
 953 /*
 954     // TODO
 955     if ( m_backgroundMode == wxSOLID )
 956     {
 957         wxGraphicPath* path = m_graphicContext->CreatePath() ;
 958         path->MoveToPoint( drawX , drawY ) ;
 959         path->AddLineToPoint(
 960             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent)) ,
 961             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent)) ) ;
 962         path->AddLineToPoint(
 963             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent ) + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
 964             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent) - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
 965         path->AddLineToPoint(
 966             (int) (drawX + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
 967             (int) (drawY - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
 968
 969         m_graphicContext->FillPath( path , m_textBackgroundColour ) ;
 970         delete path ;
 971     }
 972 */
 973     x += (int)(sin(angle / RAD2DEG) * FixedToInt(ascent));
 974     y += (int)(cos(angle / RAD2DEG) * FixedToInt(ascent));
 975
 976     status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
 977         IntToFixed(x) , IntToFixed(y) , &rect );
 978     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
 979
 980     CGContextSaveGState(m_cgContext);
 981     CGContextTranslateCTM(m_cgContext, x, y);
 982     CGContextScaleCTM(m_cgContext, 1, -1);
 983     status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
 984         IntToFixed(0) , IntToFixed(0) );
 985
 986     wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
 987
 988     CGContextRestoreGState(m_cgContext) ;
 989
 990     ::ATSUDisposeTextLayout(atsuLayout);
 991
 992 #if SIZEOF_WCHAR_T == 4
 993     free( ubuf ) ;
 994 #endif
 995 }
 996
 997 void wxMacCGContext::GetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
 998                             wxCoord *descent, wxCoord *externalLeading ) const
 999 {
1000     wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoGetTextExtent - no valid font set") ) ;
1001
1002     OSStatus status = noErr ;
1003
1004     ATSUTextLayout atsuLayout ;
1005     UniCharCount chars = str.length() ;
1006     UniChar* ubuf = NULL ;
1007
1008 #if SIZEOF_WCHAR_T == 4
1009     wxMBConvUTF16 converter ;
1010 #if wxUSE_UNICODE
1011     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
1012     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1013     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
1014 #else
1015     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1016     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1017     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1018     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1019 #endif
1020     chars = unicharlen / 2 ;
1021 #else
1022 #if wxUSE_UNICODE
1023     ubuf = (UniChar*) str.wc_str() ;
1024 #else
1025     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1026     chars = wxWcslen( wchar.data() ) ;
1027     ubuf = (UniChar*) wchar.data() ;
1028 #endif
1029 #endif
1030
1031     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1032         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1033
1034     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
1035
1036     ATSUTextMeasurement textBefore, textAfter ;
1037     ATSUTextMeasurement textAscent, textDescent ;
1038
1039     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1040         &textBefore , &textAfter, &textAscent , &textDescent );
1041
1042     if ( height )
1043         *height = FixedToInt(textAscent + textDescent) ;
1044     if ( descent )
1045         *descent = FixedToInt(textDescent) ;
1046     if ( externalLeading )
1047         *externalLeading = 0 ;
1048     if ( width )
1049         *width = FixedToInt(textAfter - textBefore) ;
1050
1051     ::ATSUDisposeTextLayout(atsuLayout);
1052 }
1053
1054 void wxMacCGContext::GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
1055 {
1056     widths.Empty();
1057     widths.Add(0, text.length());
1058
1059     if (text.empty())
1060         return ;
1061
1062     ATSUTextLayout atsuLayout ;
1063     UniCharCount chars = text.length() ;
1064     UniChar* ubuf = NULL ;
1065
1066 #if SIZEOF_WCHAR_T == 4
1067     wxMBConvUTF16 converter ;
1068 #if wxUSE_UNICODE
1069     size_t unicharlen = converter.WC2MB( NULL , text.wc_str() , 0 ) ;
1070     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1071     converter.WC2MB( (char*) ubuf , text.wc_str(), unicharlen + 2 ) ;
1072 #else
1073     const wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1074     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1075     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1076     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1077 #endif
1078     chars = unicharlen / 2 ;
1079 #else
1080 #if wxUSE_UNICODE
1081     ubuf = (UniChar*) text.wc_str() ;
1082 #else
1083     wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1084     chars = wxWcslen( wchar.data() ) ;
1085     ubuf = (UniChar*) wchar.data() ;
1086 #endif
1087 #endif
1088
1089     OSStatus status;
1090     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1091         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1092
1093     for ( int pos = 0; pos < (int)chars; pos ++ )
1094     {
1095         unsigned long actualNumberOfBounds = 0;
1096         ATSTrapezoid glyphBounds;
1097
1098         // We get a single bound, since the text should only require one. If it requires more, there is an issue
1099         OSStatus result;
1100         result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
1101             kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
1102         if (result != noErr || actualNumberOfBounds != 1 )
1103             return ;
1104
1105         widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
1106         //unsigned char uch = s[i];
1107     }
1108
1109     ::ATSUDisposeTextLayout(atsuLayout);
1110 }
1111
1112 void wxMacCGContext::SetFont( const wxFont &font )
1113 {
1114     if ( m_macATSUIStyle )
1115     {
1116         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
1117         m_macATSUIStyle = NULL ;
1118     }
1119
1120     if ( font.Ok() )
1121     {
1122         OSStatus status ;
1123
1124         status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , (ATSUStyle*) &m_macATSUIStyle ) ;
1125
1126         wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") ) ;
1127
1128         // we need the scale here ...
1129
1130         Fixed atsuSize = IntToFixed( int( /*m_scaleY*/ 1 * font.MacGetFontSize()) ) ;
1131         RGBColor atsuColor = MAC_WXCOLORREF( m_textForegroundColor.GetPixel() ) ;
1132         ATSUAttributeTag atsuTags[] =
1133         {
1134                 kATSUSizeTag ,
1135                 kATSUColorTag ,
1136         } ;
1137         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1138         {
1139                 sizeof( Fixed ) ,
1140                 sizeof( RGBColor ) ,
1141         } ;
1142         ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1143         {
1144                 &atsuSize ,
1145                 &atsuColor ,
1146         } ;
1147
1148         status = ::ATSUSetAttributes(
1149             (ATSUStyle)m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
1150             atsuTags, atsuSizes, atsuValues);
1151
1152         wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") ) ;
1153     }
1154 }
1155
1156
1157 #pragma mark -
1158
1159 wxDC::wxDC()
1160 {
1161     m_ok = false ;
1162     m_colour = true;
1163     m_mm_to_pix_x = mm2pt;
1164     m_mm_to_pix_y = mm2pt;
1165
1166     m_externalDeviceOriginX = 0;
1167     m_externalDeviceOriginY = 0;
1168     m_logicalScaleX = 1.0;
1169     m_logicalScaleY = 1.0;
1170     m_userScaleX = 1.0;
1171     m_userScaleY = 1.0;
1172     m_scaleX = 1.0;
1173     m_scaleY = 1.0;
1174     m_needComputeScaleX =
1175     m_needComputeScaleY = false;
1176
1177     m_macPort = 0 ;
1178     m_macLocalOrigin.x =
1179     m_macLocalOrigin.y = 0 ;
1180
1181     m_pen = *wxBLACK_PEN;
1182     m_font = *wxNORMAL_FONT;
1183     m_brush = *wxWHITE_BRUSH;
1184
1185     m_macATSUIStyle = NULL ;
1186     m_graphicContext = NULL ;
1187 }
1188
1189 wxDC::~wxDC()
1190 {
1191     if ( m_macATSUIStyle )
1192     {
1193         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
1194         m_macATSUIStyle = NULL ;
1195     }
1196
1197     delete m_graphicContext ;
1198 }
1199
1200 void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask )
1201 {
1202     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid DC") );
1203     wxCHECK_RET( bmp.Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid bitmap") );
1204
1205     wxCoord xx = XLOG2DEVMAC(x);
1206     wxCoord yy = YLOG2DEVMAC(y);
1207     wxCoord w = bmp.GetWidth();
1208     wxCoord h = bmp.GetHeight();
1209     wxCoord ww = XLOG2DEVREL(w);
1210     wxCoord hh = YLOG2DEVREL(h);
1211
1212     m_graphicContext->DrawBitmap( bmp, xx , yy , ww , hh ) ;
1213 }
1214
1215 void wxDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
1216 {
1217     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid DC") );
1218     wxCHECK_RET( icon.Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid icon") );
1219
1220     wxCoord xx = XLOG2DEVMAC(x);
1221     wxCoord yy = YLOG2DEVMAC(y);
1222     wxCoord w = icon.GetWidth();
1223     wxCoord h = icon.GetHeight();
1224     wxCoord ww = XLOG2DEVREL(w);
1225     wxCoord hh = YLOG2DEVREL(h);
1226
1227     m_graphicContext->DrawIcon( icon , xx, yy, ww, hh ) ;
1228 }
1229
1230 void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
1231 {
1232     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegion - invalid DC") );
1233
1234     wxCoord xx, yy, ww, hh;
1235     xx = XLOG2DEVMAC(x);
1236     yy = YLOG2DEVMAC(y);
1237     ww = XLOG2DEVREL(width);
1238     hh = YLOG2DEVREL(height);
1239
1240     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1241     CGRect clipRect = CGRectMake( xx , yy , ww, hh ) ;
1242     CGContextClipToRect( cgContext , clipRect ) ;
1243
1244 //    SetRectRgn( (RgnHandle) m_macCurrentClipRgn , xx , yy , xx + ww , yy + hh ) ;
1245 //    SectRgn( (RgnHandle) m_macCurrentClipRgn , (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
1246
1247     if ( m_clipping )
1248     {
1249         m_clipX1 = wxMax( m_clipX1, xx );
1250         m_clipY1 = wxMax( m_clipY1, yy );
1251         m_clipX2 = wxMin( m_clipX2, (xx + ww) );
1252         m_clipY2 = wxMin( m_clipY2, (yy + hh) );
1253     }
1254     else
1255     {
1256         m_clipping = true;
1257
1258         m_clipX1 = xx;
1259         m_clipY1 = yy;
1260         m_clipX2 = xx + ww;
1261         m_clipY2 = yy + hh;
1262     }
1263
1264     // TODO: as soon as we don't reset the context for each operation anymore
1265     // we have to update the context as well
1266 }
1267
1268 void wxDC::DoSetClippingRegionAsRegion( const wxRegion &region )
1269 {
1270     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegionAsRegion - invalid DC") );
1271
1272     if (region.Empty())
1273     {
1274         DestroyClippingRegion();
1275         return;
1276     }
1277
1278     wxCoord x, y, w, h;
1279     region.GetBox( x, y, w, h );
1280     wxCoord xx, yy, ww, hh;
1281     xx = XLOG2DEVMAC(x);
1282     yy = YLOG2DEVMAC(y);
1283     ww = XLOG2DEVREL(w);
1284     hh = YLOG2DEVREL(h);
1285
1286     // if we have a scaling that we cannot map onto native regions
1287     // we must use the box
1288     if ( ww != w || hh != h )
1289     {
1290         wxDC::DoSetClippingRegion( x, y, w, h );
1291     }
1292     else
1293     {
1294 #if 0
1295         CopyRgn( (RgnHandle) region.GetWXHRGN() , (RgnHandle) m_macCurrentClipRgn ) ;
1296         if ( xx != x || yy != y )
1297             OffsetRgn( (RgnHandle) m_macCurrentClipRgn , xx - x , yy - y ) ;
1298         SectRgn( (RgnHandle)m_macCurrentClipRgn , (RgnHandle)m_macBoundaryClipRgn , (RgnHandle)m_macCurrentClipRgn ) ;
1299 #endif
1300
1301         if ( m_clipping )
1302         {
1303             m_clipX1 = wxMax( m_clipX1, xx );
1304             m_clipY1 = wxMax( m_clipY1, yy );
1305             m_clipX2 = wxMin( m_clipX2, (xx + ww) );
1306             m_clipY2 = wxMin( m_clipY2, (yy + hh) );
1307         }
1308         else
1309         {
1310             m_clipping = true;
1311
1312             m_clipX1 = xx;
1313             m_clipY1 = yy;
1314             m_clipX2 = xx + ww;
1315             m_clipY2 = yy + hh;
1316         }
1317     }
1318 }
1319
1320 void wxDC::DestroyClippingRegion()
1321 {
1322 //    CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
1323
1324     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1325     CGContextRestoreGState( cgContext );
1326     CGContextSaveGState( cgContext );
1327
1328     m_graphicContext->SetPen( m_pen ) ;
1329     m_graphicContext->SetBrush( m_brush ) ;
1330
1331     m_clipping = false;
1332 }
1333
1334 void wxDC::DoGetSizeMM( int* width, int* height ) const
1335 {
1336     int w = 0, h = 0;
1337
1338     GetSize( &w, &h );
1339     if (width)
1340         *width = long( double(w) / (m_scaleX * m_mm_to_pix_x) );
1341     if (height)
1342         *height = long( double(h) / (m_scaleY * m_mm_to_pix_y) );
1343 }
1344
1345 void wxDC::SetTextForeground( const wxColour &col )
1346 {
1347     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextForeground - invalid DC") );
1348
1349     if ( col != m_textForegroundColour )
1350     {
1351         m_textForegroundColour = col;
1352         m_graphicContext->SetTextColor( col );
1353         // in the current implementation the font contains the text color
1354         m_graphicContext->SetFont(m_font);
1355     }
1356 }
1357
1358 void wxDC::SetTextBackground( const wxColour &col )
1359 {
1360     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextBackground - invalid DC") );
1361
1362     m_textBackgroundColour = col;
1363 }
1364
1365 void wxDC::SetMapMode( int mode )
1366 {
1367     switch (mode)
1368     {
1369     case wxMM_TWIPS:
1370         SetLogicalScale( twips2mm * m_mm_to_pix_x, twips2mm * m_mm_to_pix_y );
1371         break;
1372
1373     case wxMM_POINTS:
1374         SetLogicalScale( pt2mm * m_mm_to_pix_x, pt2mm * m_mm_to_pix_y );
1375         break;
1376
1377     case wxMM_METRIC:
1378         SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
1379         break;
1380
1381     case wxMM_LOMETRIC:
1382         SetLogicalScale( m_mm_to_pix_x / 10.0, m_mm_to_pix_y / 10.0 );
1383         break;
1384
1385     case wxMM_TEXT:
1386     default:
1387         SetLogicalScale( 1.0, 1.0 );
1388         break;
1389     }
1390
1391     if (mode != wxMM_TEXT)
1392     {
1393         m_needComputeScaleX =
1394         m_needComputeScaleY = true;
1395     }
1396 }
1397
1398 void wxDC::SetUserScale( double x, double y )
1399 {
1400     // allow negative ? -> no
1401     m_userScaleX = x;
1402     m_userScaleY = y;
1403     ComputeScaleAndOrigin();
1404 }
1405
1406 void wxDC::SetLogicalScale( double x, double y )
1407 {
1408     // allow negative ?
1409     m_logicalScaleX = x;
1410     m_logicalScaleY = y;
1411     ComputeScaleAndOrigin();
1412 }
1413
1414 void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
1415 {
1416     m_logicalOriginX = x * m_signX;   // is this still correct ?
1417     m_logicalOriginY = y * m_signY;
1418     ComputeScaleAndOrigin();
1419 }
1420
1421 void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
1422 {
1423     m_externalDeviceOriginX = x;
1424     m_externalDeviceOriginY = y;
1425     ComputeScaleAndOrigin();
1426 }
1427
1428 void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1429 {
1430     m_signX = (xLeftRight ?  1 : -1);
1431     m_signY = (yBottomUp ? -1 :  1);
1432     ComputeScaleAndOrigin();
1433 }
1434
1435 wxSize wxDC::GetPPI() const
1436 {
1437     return wxSize(72, 72);
1438 }
1439
1440 int wxDC::GetDepth() const
1441 {
1442     return 32;
1443 }
1444
1445 void wxDC::ComputeScaleAndOrigin()
1446 {
1447     // CMB: copy scale to see if it changes
1448     double origScaleX = m_scaleX;
1449     double origScaleY = m_scaleY;
1450     m_scaleX = m_logicalScaleX * m_userScaleX;
1451     m_scaleY = m_logicalScaleY * m_userScaleY;
1452     m_deviceOriginX = m_externalDeviceOriginX;
1453     m_deviceOriginY = m_externalDeviceOriginY;
1454
1455     // CMB: if scale has changed call SetPen to recalulate the line width
1456     if (m_scaleX != origScaleX || m_scaleY != origScaleY)
1457     {
1458         // this is a bit artificial, but we need to force wxDC to think
1459         // the pen has changed
1460         wxPen pen( GetPen() );
1461
1462         m_pen = wxNullPen;
1463         SetPen( pen );
1464     }
1465 }
1466
1467 void wxDC::SetPalette( const wxPalette& palette )
1468 {
1469 }
1470
1471 void wxDC::SetBackgroundMode( int mode )
1472 {
1473     m_backgroundMode = mode ;
1474 }
1475
1476 void wxDC::SetFont( const wxFont &font )
1477 {
1478     m_font = font;
1479     if ( m_graphicContext )
1480         m_graphicContext->SetFont( font ) ;
1481 }
1482
1483 void wxDC::SetPen( const wxPen &pen )
1484 {
1485     if ( m_pen == pen )
1486         return ;
1487
1488     m_pen = pen;
1489     if ( m_graphicContext )
1490     {
1491         if ( m_pen.GetStyle() == wxSOLID || m_pen.GetStyle() == wxTRANSPARENT )
1492         {
1493             m_graphicContext->SetPen( m_pen ) ;
1494         }
1495         else
1496         {
1497             // we have to compensate for moved device origins etc. otherwise patterned pens are standing still
1498             // eg when using a wxScrollWindow and scrolling around
1499             int origX = XLOG2DEVMAC( 0 ) ;
1500             int origY = YLOG2DEVMAC( 0 ) ;
1501             m_graphicContext->Translate( origX , origY ) ;
1502             m_graphicContext->SetPen( m_pen ) ;
1503             m_graphicContext->Translate( -origX , -origY ) ;
1504         }
1505     }
1506 }
1507
1508 void wxDC::SetBrush( const wxBrush &brush )
1509 {
1510     if (m_brush == brush)
1511         return;
1512
1513     m_brush = brush;
1514     if ( m_graphicContext )
1515     {
1516         if ( brush.GetStyle() == wxSOLID || brush.GetStyle() == wxTRANSPARENT )
1517         {
1518             m_graphicContext->SetBrush( m_brush ) ;
1519         }
1520         else
1521         {
1522             // we have to compensate for moved device origins etc. otherwise patterned brushes are standing still
1523             // eg when using a wxScrollWindow and scrolling around
1524             int origX = XLOG2DEVMAC(0) ;
1525             int origY = YLOG2DEVMAC(0) ;
1526             m_graphicContext->Translate( origX , origY ) ;
1527             m_graphicContext->SetBrush( m_brush ) ;
1528             m_graphicContext->Translate( -origX , -origY ) ;
1529         }
1530     }
1531 }
1532
1533 void wxDC::SetBackground( const wxBrush &brush )
1534 {
1535     if (m_backgroundBrush == brush)
1536         return;
1537
1538     m_backgroundBrush = brush;
1539     if (!m_backgroundBrush.Ok())
1540         return;
1541 }
1542
1543 void wxDC::SetLogicalFunction( int function )
1544 {
1545     if (m_logicalFunction == function)
1546         return;
1547
1548     m_logicalFunction = function ;
1549 #if wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1550     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1551     if ( m_logicalFunction == wxCOPY )
1552         CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
1553     else if ( m_logicalFunction == wxINVERT )
1554         CGContextSetBlendMode( cgContext, kCGBlendModeExclusion ) ;
1555     else
1556         CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
1557 #endif
1558 }
1559
1560 extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
1561                           const wxColour & col, int style);
1562
1563 bool wxDC::DoFloodFill(wxCoord x, wxCoord y,
1564                        const wxColour& col, int style)
1565 {
1566     return wxDoFloodFill(this, x, y, col, style);
1567 }
1568
1569 bool wxDC::DoGetPixel( wxCoord x, wxCoord y, wxColour *col ) const
1570 {
1571     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPixel - invalid DC") );
1572
1573     wxMacPortSaver helper((CGrafPtr)m_macPort) ;
1574     RGBColor colour;
1575
1576     // NB: GetCPixel is a deprecated QD call, and a slow one at that
1577     GetCPixel(
1578         XLOG2DEVMAC(x) + m_macLocalOriginInPort.x - m_macLocalOrigin.x,
1579         YLOG2DEVMAC(y) + m_macLocalOriginInPort.y - m_macLocalOrigin.y, &colour );
1580
1581     // convert from Mac colour to wx
1582     col->Set( colour.red >> 8, colour.green >> 8, colour.blue >> 8 );
1583
1584     return true ;
1585 }
1586
1587 void wxDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
1588 {
1589     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLine - invalid DC") );
1590
1591 #if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1592     if ( m_logicalFunction != wxCOPY )
1593         return ;
1594 #endif
1595
1596     wxCoord xx1 = XLOG2DEVMAC(x1) ;
1597     wxCoord yy1 = YLOG2DEVMAC(y1) ;
1598     wxCoord xx2 = XLOG2DEVMAC(x2) ;
1599     wxCoord yy2 = YLOG2DEVMAC(y2) ;
1600
1601     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1602     path->MoveToPoint( xx1, yy1 ) ;
1603     path->AddLineToPoint( xx2 , yy2 ) ;
1604     path->CloseSubpath() ;
1605     m_graphicContext->StrokePath( path ) ;
1606     delete path ;
1607
1608     CalcBoundingBox(x1, y1);
1609     CalcBoundingBox(x2, y2);
1610 }
1611
1612 void wxDC::DoCrossHair( wxCoord x, wxCoord y )
1613 {
1614     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoCrossHair - invalid DC") );
1615
1616     if ( m_logicalFunction != wxCOPY )
1617         return ;
1618
1619     int w = 0, h = 0;
1620
1621     GetSize( &w, &h );
1622     wxCoord xx = XLOG2DEVMAC(x);
1623     wxCoord yy = YLOG2DEVMAC(y);
1624
1625     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1626     path->MoveToPoint( XLOG2DEVMAC(0), yy ) ;
1627     path->AddLineToPoint( XLOG2DEVMAC(w), yy ) ;
1628     path->CloseSubpath() ;
1629     path->MoveToPoint( xx, YLOG2DEVMAC(0) ) ;
1630     path->AddLineToPoint( xx, YLOG2DEVMAC(h) ) ;
1631     path->CloseSubpath() ;
1632     m_graphicContext->StrokePath( path ) ;
1633     delete path ;
1634
1635     CalcBoundingBox(x, y);
1636     CalcBoundingBox(x + w, y + h);
1637 }
1638
1639 void wxDC::DoDrawArc( wxCoord x1, wxCoord y1,
1640                       wxCoord x2, wxCoord y2,
1641                       wxCoord xc, wxCoord yc )
1642 {
1643     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawArc - invalid DC") );
1644
1645     if ( m_logicalFunction != wxCOPY )
1646         return ;
1647
1648     wxCoord xx1 = XLOG2DEVMAC(x1);
1649     wxCoord yy1 = YLOG2DEVMAC(y1);
1650     wxCoord xx2 = XLOG2DEVMAC(x2);
1651     wxCoord yy2 = YLOG2DEVMAC(y2);
1652     wxCoord xxc = XLOG2DEVMAC(xc);
1653     wxCoord yyc = YLOG2DEVMAC(yc);
1654
1655     double dx = xx1 - xxc;
1656     double dy = yy1 - yyc;
1657     double radius = sqrt((double)(dx * dx + dy * dy));
1658     wxCoord rad = (wxCoord)radius;
1659     double sa, ea;
1660     if (xx1 == xx2 && yy1 == yy2)
1661     {
1662         sa = 0.0;
1663         ea = 360.0;
1664     }
1665     else if (radius == 0.0)
1666     {
1667         sa = ea = 0.0;
1668     }
1669     else
1670     {
1671         sa = (xx1 - xxc == 0) ?
1672             (yy1 - yyc < 0) ? 90.0 : -90.0 :
1673         -atan2(double(yy1 - yyc), double(xx1 - xxc)) * RAD2DEG;
1674         ea = (xx2 - xxc == 0) ?
1675             (yy2 - yyc < 0) ? 90.0 : -90.0 :
1676         -atan2(double(yy2 - yyc), double(xx2 - xxc)) * RAD2DEG;
1677     }
1678
1679     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1680
1681     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1682     m_graphicContext->PushState() ;
1683     m_graphicContext->Translate( xxc, yyc ) ;
1684     m_graphicContext->Scale( 1, -1 ) ;
1685     if ( fill )
1686         path->MoveToPoint( 0, 0 ) ;
1687     path->AddArc( 0, 0, rad , DegToRad(sa) , DegToRad(ea), false ) ;
1688     if ( fill )
1689         path->AddLineToPoint( 0, 0 ) ;
1690     m_graphicContext->DrawPath( path ) ;
1691     m_graphicContext->PopState() ;
1692     delete path ;
1693 }
1694
1695 void wxDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h,
1696                               double sa, double ea )
1697 {
1698     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipticArc - invalid DC") );
1699
1700     if ( m_logicalFunction != wxCOPY )
1701         return ;
1702
1703     wxCoord xx = XLOG2DEVMAC(x);
1704     wxCoord yy = YLOG2DEVMAC(y);
1705     wxCoord ww = m_signX * XLOG2DEVREL(w);
1706     wxCoord hh = m_signY * YLOG2DEVREL(h);
1707
1708     // handle -ve width and/or height
1709     if (ww < 0)
1710     {
1711         ww = -ww;
1712         xx = xx - ww;
1713     }
1714     if (hh < 0)
1715     {
1716         hh = -hh;
1717         yy = yy - hh;
1718     }
1719
1720     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1721
1722     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1723     m_graphicContext->PushState() ;
1724     m_graphicContext->Translate( xx + ww / 2, yy + hh / 2 ) ;
1725     m_graphicContext->Scale( 1 * ww / 2 , -1 * hh / 2 ) ;
1726     if ( fill )
1727         path->MoveToPoint( 0, 0 ) ;
1728     path->AddArc( 0, 0, 1 , DegToRad(sa) , DegToRad(ea), false ) ;
1729     if ( fill )
1730         path->AddLineToPoint( 0, 0 ) ;
1731     m_graphicContext->DrawPath( path ) ;
1732     m_graphicContext->PopState() ;
1733     delete path ;
1734 }
1735
1736 void wxDC::DoDrawPoint( wxCoord x, wxCoord y )
1737 {
1738     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPoint - invalid DC") );
1739
1740     DoDrawLine( x , y , x + 1 , y + 1 ) ;
1741 }
1742
1743 void wxDC::DoDrawLines(int n, wxPoint points[],
1744                         wxCoord xoffset, wxCoord yoffset)
1745 {
1746     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLines - invalid DC") );
1747
1748 #if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1749     if ( m_logicalFunction != wxCOPY )
1750         return ;
1751 #endif
1752
1753     wxCoord x1, x2 , y1 , y2 ;
1754     x1 = XLOG2DEVMAC(points[0].x + xoffset);
1755     y1 = YLOG2DEVMAC(points[0].y + yoffset);
1756     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1757     path->MoveToPoint( x1 , y1 ) ;
1758     for (int i = 1; i < n; i++)
1759     {
1760         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1761         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1762
1763         path->AddLineToPoint( x2 , y2 ) ;
1764     }
1765
1766     m_graphicContext->StrokePath( path ) ;
1767     delete path ;
1768 }
1769
1770 #if wxUSE_SPLINES
1771 void wxDC::DoDrawSpline(wxList *points)
1772 {
1773     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawSpline - invalid DC") );
1774
1775     if ( m_logicalFunction != wxCOPY )
1776         return ;
1777
1778     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1779
1780     wxList::compatibility_iterator node = points->GetFirst();
1781     if (node == wxList::compatibility_iterator())
1782         // empty list
1783         return;
1784
1785     wxPoint *p = (wxPoint *)node->GetData();
1786
1787     wxCoord x1 = p->x;
1788     wxCoord y1 = p->y;
1789
1790     node = node->GetNext();
1791     p = (wxPoint *)node->GetData();
1792
1793     wxCoord x2 = p->x;
1794     wxCoord y2 = p->y;
1795     wxCoord cx1 = ( x1 + x2 ) / 2;
1796     wxCoord cy1 = ( y1 + y2 ) / 2;
1797
1798     path->MoveToPoint( XLOG2DEVMAC( x1 ) , YLOG2DEVMAC( y1 ) ) ;
1799     path->AddLineToPoint( XLOG2DEVMAC( cx1 ) , YLOG2DEVMAC( cy1 ) ) ;
1800
1801 #if !wxUSE_STL
1802     while ((node = node->GetNext()) != NULL)
1803 #else
1804     while ((node = node->GetNext()))
1805 #endif // !wxUSE_STL
1806     {
1807         p = (wxPoint *)node->GetData();
1808         x1 = x2;
1809         y1 = y2;
1810         x2 = p->x;
1811         y2 = p->y;
1812         wxCoord cx4 = (x1 + x2) / 2;
1813         wxCoord cy4 = (y1 + y2) / 2;
1814
1815         path->AddQuadCurveToPoint(
1816             XLOG2DEVMAC( x1 ) , YLOG2DEVMAC( y1 ) ,
1817             XLOG2DEVMAC( cx4 ) , YLOG2DEVMAC( cy4 ) ) ;
1818
1819         cx1 = cx4;
1820         cy1 = cy4;
1821     }
1822
1823     path->AddLineToPoint( XLOG2DEVMAC( x2 ) , YLOG2DEVMAC( y2 ) ) ;
1824
1825     m_graphicContext->StrokePath( path ) ;
1826     delete path ;
1827 }
1828 #endif
1829
1830 void wxDC::DoDrawPolygon( int n, wxPoint points[],
1831                           wxCoord xoffset, wxCoord yoffset,
1832                           int fillStyle )
1833 {
1834     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPolygon - invalid DC") );
1835
1836     if ( n <= 0 || (m_brush.GetStyle() == wxTRANSPARENT && m_pen.GetStyle() == wxTRANSPARENT ) )
1837         return ;
1838     if ( m_logicalFunction != wxCOPY )
1839         return ;
1840
1841     wxCoord x1, x2 , y1 , y2 ;
1842     x2 = x1 = XLOG2DEVMAC(points[0].x + xoffset);
1843     y2 = y1 = YLOG2DEVMAC(points[0].y + yoffset);
1844
1845     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1846     path->MoveToPoint( x1 , y1 ) ;
1847     for (int i = 1; i < n; i++)
1848     {
1849         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1850         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1851
1852         path->AddLineToPoint( x2 , y2 ) ;
1853     }
1854
1855     if ( x1 != x2 || y1 != y2 )
1856         path->AddLineToPoint( x1, y1 ) ;
1857
1858     path->CloseSubpath() ;
1859     m_graphicContext->DrawPath( path , fillStyle ) ;
1860
1861     delete path ;
1862 }
1863
1864 void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1865 {
1866     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRectangle - invalid DC") );
1867
1868     if ( m_logicalFunction != wxCOPY )
1869         return ;
1870
1871     wxCoord xx = XLOG2DEVMAC(x);
1872     wxCoord yy = YLOG2DEVMAC(y);
1873     wxCoord ww = m_signX * XLOG2DEVREL(width);
1874     wxCoord hh = m_signY * YLOG2DEVREL(height);
1875
1876     // CMB: draw nothing if transformed w or h is 0
1877     if (ww == 0 || hh == 0)
1878         return;
1879
1880     // CMB: handle -ve width and/or height
1881     if (ww < 0)
1882     {
1883         ww = -ww;
1884         xx = xx - ww;
1885     }
1886     if (hh < 0)
1887     {
1888         hh = -hh;
1889         yy = yy - hh;
1890     }
1891
1892     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1893     path->AddRectangle( xx , yy , ww , hh ) ;
1894     m_graphicContext->DrawPath( path ) ;
1895     delete path ;
1896 }
1897
1898 void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y,
1899                                    wxCoord width, wxCoord height,
1900                                    double radius)
1901 {
1902     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRoundedRectangle - invalid DC") );
1903
1904     if ( m_logicalFunction != wxCOPY )
1905         return ;
1906
1907     if (radius < 0.0)
1908         radius = - radius * ((width < height) ? width : height);
1909     wxCoord xx = XLOG2DEVMAC(x);
1910     wxCoord yy = YLOG2DEVMAC(y);
1911     wxCoord ww = m_signX * XLOG2DEVREL(width);
1912     wxCoord hh = m_signY * YLOG2DEVREL(height);
1913
1914     // CMB: draw nothing if transformed w or h is 0
1915     if (ww == 0 || hh == 0)
1916         return;
1917
1918     // CMB: handle -ve width and/or height
1919     if (ww < 0)
1920     {
1921         ww = -ww;
1922         xx = xx - ww;
1923     }
1924     if (hh < 0)
1925     {
1926         hh = -hh;
1927         yy = yy - hh;
1928     }
1929
1930     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1931     if ( radius == 0)
1932     {
1933         path->AddRectangle( xx , yy , ww , hh ) ;
1934         m_graphicContext->DrawPath( path ) ;
1935     }
1936     else
1937     {
1938         m_graphicContext->PushState() ;
1939         m_graphicContext->Translate( xx , yy ) ;
1940         m_graphicContext->Scale( radius , radius ) ;
1941         double fw = ww / radius ;
1942         double fh = hh / radius;
1943         path->MoveToPoint(fw, fh / 2);
1944         path->AddArcToPoint(fw, fh, fw / 2, fh, 1);
1945         path->AddArcToPoint(0, fh, 0, fh / 2, 1);
1946         path->AddArcToPoint(0, 0, fw / 2, 0, 1);
1947         path->AddArcToPoint(fw, 0, fw, fh / 2, 1);
1948         path->CloseSubpath();
1949         m_graphicContext->DrawPath( path ) ;
1950         m_graphicContext->PopState() ;
1951     }
1952     delete path ;
1953 }
1954
1955 void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1956 {
1957     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipse - invalid DC") );
1958
1959     if ( m_logicalFunction != wxCOPY )
1960         return ;
1961
1962     wxCoord xx = XLOG2DEVMAC(x);
1963     wxCoord yy = YLOG2DEVMAC(y);
1964     wxCoord ww = m_signX * XLOG2DEVREL(width);
1965     wxCoord hh = m_signY * YLOG2DEVREL(height);
1966
1967     // CMB: draw nothing if transformed w or h is 0
1968     if (ww == 0 || hh == 0)
1969         return;
1970
1971     // CMB: handle -ve width and/or height
1972     if (ww < 0)
1973     {
1974         ww = -ww;
1975         xx = xx - ww;
1976     }
1977     if (hh < 0)
1978     {
1979         hh = -hh;
1980         yy = yy - hh;
1981     }
1982
1983     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1984     m_graphicContext->PushState() ;
1985     m_graphicContext->Translate(xx + ww / 2, yy + hh / 2);
1986     m_graphicContext->Scale(ww / 2 , hh / 2);
1987     path->AddArc( 0, 0, 1, 0 , 2 * M_PI , false ) ;
1988     m_graphicContext->DrawPath( path ) ;
1989     m_graphicContext->PopState() ;
1990     delete path ;
1991 }
1992
1993 bool wxDC::CanDrawBitmap() const
1994 {
1995     return true ;
1996 }
1997
1998 bool wxDC::DoBlit(
1999     wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
2000     wxDC *source, wxCoord xsrc, wxCoord ysrc, int logical_func , bool useMask,
2001     wxCoord xsrcMask, wxCoord ysrcMask )
2002 {
2003     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoBlit - invalid DC") );
2004     wxCHECK_MSG( source->Ok(), false, wxT("wxDC(cg)::DoBlit - invalid source DC") );
2005
2006     if ( logical_func == wxNO_OP )
2007         return true ;
2008
2009     if (xsrcMask == -1 && ysrcMask == -1)
2010     {
2011         xsrcMask = xsrc;
2012         ysrcMask = ysrc;
2013     }
2014
2015     wxCoord yysrc = source->YLOG2DEVMAC(ysrc) ;
2016     wxCoord xxsrc = source->XLOG2DEVMAC(xsrc) ;
2017     wxCoord wwsrc = source->XLOG2DEVREL(width) ;
2018     wxCoord hhsrc = source->YLOG2DEVREL(height) ;
2019
2020     wxCoord yydest = YLOG2DEVMAC(ydest) ;
2021     wxCoord xxdest = XLOG2DEVMAC(xdest) ;
2022     wxCoord wwdest = XLOG2DEVREL(width) ;
2023     wxCoord hhdest = YLOG2DEVREL(height) ;
2024
2025     wxMemoryDC* memdc = dynamic_cast<wxMemoryDC*>(source) ;
2026     if ( memdc && logical_func == wxCOPY )
2027     {
2028         wxBitmap blit = memdc->GetSelectedObject() ;
2029
2030         wxASSERT_MSG( blit.Ok() , wxT("Invalid bitmap for blitting") ) ;
2031
2032         wxCoord bmpwidth = blit.GetWidth();
2033         wxCoord bmpheight = blit.GetHeight();
2034
2035         if ( xxsrc != 0 || yysrc != 0 || bmpwidth != wwsrc || bmpheight != hhsrc )
2036         {
2037             wwsrc = wxMin( wwsrc , bmpwidth - xxsrc ) ;
2038             hhsrc = wxMin( hhsrc , bmpheight - yysrc ) ;
2039             if ( wwsrc > 0 && hhsrc > 0 )
2040             {
2041                 if ( xxsrc >= 0 && yysrc >= 0 )
2042                 {
2043                     wxRect subrect( xxsrc, yysrc, wwsrc , hhsrc ) ;
2044                     // TODO we perhaps could add a DrawSubBitmap call to dc for performance reasons
2045                     blit = blit.GetSubBitmap( subrect ) ;
2046                 }
2047                 else
2048                 {
2049                     // in this case we'd probably have to adjust the different coordinates, but
2050                     // we have to find out proper contract first
2051                     blit = wxNullBitmap ;
2052                 }
2053             }
2054             else
2055             {
2056                 blit = wxNullBitmap ;
2057             }
2058         }
2059
2060         if ( blit.Ok() )
2061         {
2062             m_graphicContext->DrawBitmap( blit, xxdest , yydest , wwdest , hhdest ) ;
2063         }
2064     }
2065     else
2066     {
2067         wxFAIL_MSG( wxT("Blitting is only supported from bitmap contexts, and only with wxCOPY logical operation.") ) ;
2068         return false ;
2069     }
2070
2071     return true;
2072 }
2073
2074 void wxDC::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y,
2075                               double angle)
2076 {
2077     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRotatedText - invalid DC") );
2078 //    wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoDrawRotatedText - no valid font set") );
2079
2080     if ( str.length() == 0 )
2081         return ;
2082     if ( m_logicalFunction != wxCOPY )
2083         return ;
2084
2085     int drawX = XLOG2DEVMAC(x) ;
2086     int drawY = YLOG2DEVMAC(y) ;
2087
2088     m_graphicContext->DrawText( str, drawX ,drawY , angle ) ;
2089 }
2090
2091 void wxDC::DoDrawText(const wxString& strtext, wxCoord x, wxCoord y)
2092 {
2093     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawText - invalid DC") );
2094
2095     DoDrawRotatedText( strtext , x , y , 0.0 ) ;
2096 }
2097
2098 bool wxDC::CanGetTextExtent() const
2099 {
2100     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::CanGetTextExtent - invalid DC") );
2101
2102     return true ;
2103 }
2104
2105 void wxDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
2106                             wxCoord *descent, wxCoord *externalLeading ,
2107                             wxFont *theFont ) const
2108 {
2109     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoGetTextExtent - invalid DC") );
2110
2111     wxFont formerFont = m_font ;
2112     if ( theFont )
2113     {
2114         m_graphicContext->SetFont( *theFont ) ;
2115     }
2116
2117     wxCoord h , d , e , w ;
2118
2119     m_graphicContext->GetTextExtent( str, &w, &h, &d, &e ) ;
2120
2121     if ( height )
2122         *height = YDEV2LOGREL( h ) ;
2123     if ( descent )
2124         *descent =YDEV2LOGREL( d);
2125     if ( externalLeading )
2126         *externalLeading = YDEV2LOGREL( e);
2127     if ( width )
2128         *width = XDEV2LOGREL( w ) ;
2129
2130     if ( theFont )
2131     {
2132         m_graphicContext->SetFont( m_font ) ;
2133     }
2134 }
2135
2136 bool wxDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
2137 {
2138     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPartialTextExtents - invalid DC") );
2139
2140     m_graphicContext->GetPartialTextExtents( text, widths ) ;
2141     for ( size_t i = 0 ; i < widths.GetCount() ; ++i )
2142         widths[i] = XDEV2LOGREL( widths[i] );
2143
2144     return true;
2145 }
2146
2147 wxCoord wxDC::GetCharWidth(void) const
2148 {
2149     wxCoord width ;
2150     DoGetTextExtent( wxT("g") , &width , NULL , NULL , NULL , NULL ) ;
2151
2152     return width ;
2153 }
2154
2155 wxCoord wxDC::GetCharHeight(void) const
2156 {
2157     wxCoord height ;
2158     DoGetTextExtent( wxT("g") , NULL , &height , NULL , NULL , NULL ) ;
2159
2160     return height ;
2161 }
2162
2163 void wxDC::Clear(void)
2164 {
2165     wxCHECK_RET( Ok(), wxT("wxDC(cg)::Clear - invalid DC") );
2166
2167     if (m_backgroundBrush.Ok() && m_backgroundBrush.GetStyle() != wxTRANSPARENT)
2168     {
2169         HIRect rect = CGRectMake( -10000 , -10000 , 20000 , 20000 ) ;
2170         CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
2171         switch ( m_backgroundBrush.MacGetBrushKind() )
2172         {
2173             case kwxMacBrushTheme :
2174                 {
2175 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
2176                     if ( HIThemeSetFill != 0 )
2177                     {
2178                         HIThemeSetFill( m_backgroundBrush.MacGetTheme(), NULL, cg, kHIThemeOrientationNormal );
2179                         CGContextFillRect(cg, rect);
2180
2181                     }
2182                     else
2183 #endif
2184                     {
2185                         RGBColor color;
2186                         GetThemeBrushAsColor( m_backgroundBrush.MacGetTheme(), 32, true, &color );
2187                         CGContextSetRGBFillColor( cg, (CGFloat) color.red / 65536,
2188                             (CGFloat) color.green / 65536, (CGFloat) color.blue / 65536, 1 );
2189                             CGContextFillRect( cg, rect );
2190                     }
2191
2192                     // reset to normal value
2193                     RGBColor col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2194                     CGContextSetRGBFillColor( cg, col.red / 65536.0, col.green / 65536.0, col.blue / 65536.0, 1.0 );
2195                 }
2196                 break ;
2197
2198             case kwxMacBrushThemeBackground :
2199                 {
2200                     wxFAIL_MSG( wxT("There shouldn't be theme backgrounds under Quartz") ) ;
2201
2202 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3
2203                     if ( UMAGetSystemVersion() >= 0x1030 )
2204                     {
2205                         HIThemeBackgroundDrawInfo drawInfo ;
2206                         drawInfo.version = 0 ;
2207                         drawInfo.state = kThemeStateActive ;
2208                         drawInfo.kind = m_backgroundBrush.MacGetThemeBackground( NULL ) ;
2209                         if ( drawInfo.kind == kThemeBackgroundMetal )
2210                         {
2211                             HIThemeDrawBackground( &rect, &drawInfo, cg, kHIThemeOrientationNormal ) ;
2212                             HIThemeApplyBackground( &rect, &drawInfo, cg, kHIThemeOrientationNormal ) ;
2213                         }
2214                     }
2215 #endif
2216                 }
2217                 break ;
2218
2219             case kwxMacBrushColour :
2220                 {
2221                     // FIXME: doesn't correctly render stippled brushes !!
2222                     // FIXME: should this be replaced by ::SetBrush() ??
2223
2224                     RGBColor col = MAC_WXCOLORREF( m_backgroundBrush.GetColour().GetPixel()) ;
2225                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2226                     CGContextFillRect(cg, rect);
2227
2228                     // reset to normal value
2229                     col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2230                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2231                 }
2232                 break ;
2233
2234             default :
2235                 wxFAIL_MSG( wxT("unknown brush kind") ) ;
2236                 break ;
2237         }
2238     }
2239 }
2240
2241 #pragma mark -
2242
2243 // ---------------------------------------------------------------------------
2244 // coordinates transformations
2245 // ---------------------------------------------------------------------------
2246
2247 wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
2248 {
2249     return ((wxDC *)this)->XDEV2LOG(x);
2250 }
2251
2252 wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
2253 {
2254     return ((wxDC *)this)->YDEV2LOG(y);
2255 }
2256
2257 wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
2258 {
2259     return ((wxDC *)this)->XDEV2LOGREL(x);
2260 }
2261
2262 wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
2263 {
2264     return ((wxDC *)this)->YDEV2LOGREL(y);
2265 }
2266
2267 wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
2268 {
2269     return ((wxDC *)this)->XLOG2DEV(x);
2270 }
2271
2272 wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
2273 {
2274     return ((wxDC *)this)->YLOG2DEV(y);
2275 }
2276
2277 wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
2278 {
2279     return ((wxDC *)this)->XLOG2DEVREL(x);
2280 }
2281
2282 wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
2283 {
2284     return ((wxDC *)this)->YLOG2DEVREL(y);
2285 }
2286
2287 #endif // wxMAC_USE_CORE_GRAPHICS