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