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/dcmemory.h"
  21     #include "wx/region.h"
  22 #endif
  23
  24 #include "wx/mac/uma.h"
  25
  26 #ifdef __MSL__
  27     #if __MSL__ >= 0x6000
  28         #include "math.h"
  29         // in case our functions were defined outside std, we make it known all the same
  30         namespace std { }
  31         using namespace std ;
  32     #endif
  33 #endif
  34
  35 #include "wx/mac/private.h"
  36
  37 IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
  38
  39 #ifndef wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
  40 #define wxMAC_USE_CORE_GRAPHICS_BLEND_MODES 0
  41 #endif
  42
  43 #if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4
  44 typedef float CGFloat ;
  45 #endif
  46
  47 //-----------------------------------------------------------------------------
  48 // constants
  49 //-----------------------------------------------------------------------------
  50
  51 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
  52 #ifndef M_PI
  53 const double M_PI = 3.14159265358979 ;
  54 #endif
  55 #endif
  56
  57 static const double RAD2DEG = 180.0 / M_PI;
  58
  59 #ifndef __LP64__
  60
  61 // TODO: update
  62 // The textctrl implementation still needs that (needs what?) for the non-HIView implementation
  63 //
  64 wxMacWindowClipper::wxMacWindowClipper( const wxWindow* win ) :
  65     wxMacPortSaver( (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) )
  66 {
  67     m_newPort = (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) ;
  68     m_formerClip = NewRgn() ;
  69     m_newClip = NewRgn() ;
  70     GetClip( m_formerClip ) ;
  71
  72     if ( win )
  73     {
  74         // guard against half constructed objects, this just leads to a empty clip
  75         if ( win->GetPeer() )
  76         {
  77             int x = 0 , y = 0;
  78             win->MacWindowToRootWindow( &x, &y ) ;
  79
  80             // get area including focus rect
  81             CopyRgn( (RgnHandle) ((wxWindow*)win)->MacGetVisibleRegion(true).GetWXHRGN() , m_newClip ) ;
  82             if ( !EmptyRgn( m_newClip ) )
  83                 OffsetRgn( m_newClip , x , y ) ;
  84         }
  85
  86         SetClip( m_newClip ) ;
  87     }
  88 }
  89
  90 wxMacWindowClipper::~wxMacWindowClipper()
  91 {
  92     SetPort( m_newPort ) ;
  93     SetClip( m_formerClip ) ;
  94     DisposeRgn( m_newClip ) ;
  95     DisposeRgn( m_formerClip ) ;
  96 }
  97
  98 wxMacWindowStateSaver::wxMacWindowStateSaver( const wxWindow* win ) :
  99     wxMacWindowClipper( win )
 100 {
 101     // the port is already set at this point
 102     m_newPort = (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) ;
 103     GetThemeDrawingState( &m_themeDrawingState ) ;
 104 }
 105
 106 wxMacWindowStateSaver::~wxMacWindowStateSaver()
 107 {
 108     SetPort( m_newPort ) ;
 109     SetThemeDrawingState( m_themeDrawingState , true ) ;
 110 }
 111
 112 // minimal implementation only used for appearance drawing < 10.3
 113
 114 wxMacPortSetter::wxMacPortSetter( const wxDC* dc ) :
 115     m_ph( (GrafPtr) dc->m_macPort )
 116 {
 117     wxASSERT( dc->Ok() ) ;
 118     m_dc = dc ;
 119
 120 //    dc->MacSetupPort(&m_ph) ;
 121 }
 122
 123 wxMacPortSetter::~wxMacPortSetter()
 124 {
 125 //    m_dc->MacCleanupPort(&m_ph) ;
 126 }
 127 #endif
 128
 129 //-----------------------------------------------------------------------------
 130 // Local functions
 131 //-----------------------------------------------------------------------------
 132
 133 static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
 134
 135 //-----------------------------------------------------------------------------
 136 // device context implementation
 137 //
 138 // more and more of the dc functionality should be implemented by calling
 139 // the appropricate wxMacCGContext, but we will have to do that step by step
 140 // also coordinate conversions should be moved to native matrix ops
 141 //-----------------------------------------------------------------------------
 142
 143 // we always stock two context states, one at entry, to be able to preserve the
 144 // state we were called with, the other one after changing to HI Graphics orientation
 145 // (this one is used for getting back clippings etc)
 146
 147 //-----------------------------------------------------------------------------
 148 // wxGraphicPath implementation
 149 //-----------------------------------------------------------------------------
 150
 151 wxMacCGPath::wxMacCGPath()
 152 {
 153     m_path = CGPathCreateMutable() ;
 154 }
 155
 156 wxMacCGPath::~wxMacCGPath()
 157 {
 158     CGPathRelease( m_path ) ;
 159 }
 160
 161 // opens (starts) a new subpath
 162 void wxMacCGPath::MoveToPoint( wxCoord x1 , wxCoord y1 )
 163 {
 164     CGPathMoveToPoint( m_path , NULL , x1 , y1 ) ;
 165 }
 166
 167 void wxMacCGPath::AddLineToPoint( wxCoord x1 , wxCoord y1 )
 168 {
 169     CGPathAddLineToPoint( m_path , NULL , x1 , y1 ) ;
 170 }
 171
 172 void wxMacCGPath::AddQuadCurveToPoint( wxCoord cx1, wxCoord cy1, wxCoord x1, wxCoord y1 )
 173 {
 174     CGPathAddQuadCurveToPoint( m_path , NULL , cx1 , cy1 , x1 , y1 );
 175 }
 176
 177 void wxMacCGPath::AddRectangle( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 178 {
 179     CGRect cgRect = { { x , y } , { w , h } } ;
 180     CGPathAddRect( m_path , NULL , cgRect ) ;
 181 }
 182
 183 void wxMacCGPath::AddCircle( wxCoord x, wxCoord y , wxCoord r )
 184 {
 185     CGPathAddArc( m_path , NULL , x , y , r , 0.0 , 2 * M_PI , true ) ;
 186 }
 187
 188 // closes the current subpath
 189 void wxMacCGPath::CloseSubpath()
 190 {
 191     CGPathCloseSubpath( m_path ) ;
 192 }
 193
 194 CGPathRef wxMacCGPath::GetPath() const
 195 {
 196     return m_path ;
 197 }
 198
 199 void wxMacCGPath::AddArcToPoint( wxCoord x1, wxCoord y1 , wxCoord x2, wxCoord y2, wxCoord r )
 200 {
 201     CGPathAddArcToPoint( m_path, NULL , x1, y1, x2, y2, r);
 202 }
 203
 204 void wxMacCGPath::AddArc( wxCoord x, wxCoord y, wxCoord r, double startAngle, double endAngle, bool clockwise )
 205 {
 206     CGPathAddArc( m_path, NULL , x, y, r, startAngle, endAngle, clockwise);
 207 }
 208
 209 //-----------------------------------------------------------------------------
 210 // wxGraphicContext implementation
 211 //-----------------------------------------------------------------------------
 212
 213 wxMacCGContext::wxMacCGContext( CGrafPtr port )
 214 {
 215     m_qdPort = port ;
 216     m_cgContext = NULL ;
 217     m_mode = kCGPathFill;
 218     m_macATSUIStyle = NULL ;
 219 }
 220
 221 wxMacCGContext::wxMacCGContext( CGContextRef cgcontext )
 222 {
 223     m_qdPort = NULL ;
 224     m_cgContext = cgcontext ;
 225     m_mode = kCGPathFill;
 226     m_macATSUIStyle = NULL ;
 227     CGContextSaveGState( m_cgContext ) ;
 228     CGContextSaveGState( m_cgContext ) ;
 229 }
 230
 231 wxMacCGContext::wxMacCGContext()
 232 {
 233     m_qdPort = NULL ;
 234     m_cgContext = NULL ;
 235     m_mode = kCGPathFill;
 236     m_macATSUIStyle = NULL ;
 237 }
 238
 239 wxMacCGContext::~wxMacCGContext()
 240 {
 241     if ( m_cgContext )
 242     {
 243         CGContextSynchronize( m_cgContext ) ;
 244         CGContextRestoreGState( m_cgContext ) ;
 245         CGContextRestoreGState( m_cgContext ) ;
 246     }
 247 #ifndef __LP64__
 248     if ( m_qdPort )
 249         QDEndCGContext( m_qdPort, &m_cgContext ) ;
 250 #endif
 251 }
 252
 253
 254 void wxMacCGContext::Clip( const wxRegion &region )
 255 {
 256 //    ClipCGContextToRegion ( m_cgContext, &bounds , (RgnHandle) dc->m_macCurrentClipRgn ) ;
 257 }
 258
 259 void wxMacCGContext::StrokePath( const wxGraphicPath *p )
 260 {
 261     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 262
 263     int width = m_pen.GetWidth();
 264     if ( width == 0 )
 265         width = 1 ;
 266     if ( m_pen.GetStyle() == wxTRANSPARENT )
 267         width = 0 ;
 268
 269     bool offset = ( width % 2 ) == 1 ;
 270
 271     if ( offset )
 272         CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
 273
 274     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 275     CGContextStrokePath( m_cgContext ) ;
 276
 277     if ( offset )
 278         CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
 279 }
 280
 281 void wxMacCGContext::DrawPath( const wxGraphicPath *p , int fillStyle )
 282 {
 283     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 284     CGPathDrawingMode mode = m_mode ;
 285
 286     if ( fillStyle == wxODDEVEN_RULE )
 287     {
 288         if ( mode == kCGPathFill )
 289             mode = kCGPathEOFill ;
 290         else if ( mode == kCGPathFillStroke )
 291             mode = kCGPathEOFillStroke ;
 292     }
 293
 294     int width = m_pen.GetWidth();
 295     if ( width == 0 )
 296         width = 1 ;
 297     if ( m_pen.GetStyle() == wxTRANSPARENT )
 298         width = 0 ;
 299
 300     bool offset = ( width % 2 ) == 1 ;
 301
 302     if ( offset )
 303         CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
 304
 305     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 306     CGContextDrawPath( m_cgContext , mode ) ;
 307
 308     if ( offset )
 309         CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
 310 }
 311
 312 void wxMacCGContext::FillPath( const wxGraphicPath *p , const wxColor &fillColor , int fillStyle )
 313 {
 314     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 315     CGContextSaveGState( m_cgContext ) ;
 316
 317     RGBColor col = MAC_WXCOLORREF( fillColor.GetPixel() ) ;
 318     CGContextSetRGBFillColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 319     CGPathDrawingMode mode = kCGPathFill ;
 320
 321     if ( fillStyle == wxODDEVEN_RULE )
 322         mode = kCGPathEOFill ;
 323
 324     CGContextBeginPath( m_cgContext ) ;
 325     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 326     CGContextClosePath( m_cgContext ) ;
 327     CGContextDrawPath( m_cgContext , mode ) ;
 328
 329     CGContextRestoreGState( m_cgContext ) ;
 330 }
 331
 332 wxGraphicPath* wxMacCGContext::CreatePath()
 333 {
 334     // make sure that we now have a real cgref, before doing
 335     // anything with paths
 336     CGContextRef cg = GetNativeContext() ;
 337     cg = NULL ;
 338
 339     return new wxMacCGPath() ;
 340 }
 341
 342 // in case we only got a QDPort only create a cgref now
 343
 344 CGContextRef wxMacCGContext::GetNativeContext()
 345 {
 346     if ( m_cgContext == NULL )
 347     {
 348         Rect bounds ;
 349         OSStatus status = noErr;
 350 #ifndef __LP64__
 351         GetPortBounds( (CGrafPtr) m_qdPort , &bounds ) ;
 352         status = QDBeginCGContext((CGrafPtr) m_qdPort , &m_cgContext) ;
 353 #endif
 354         CGContextSaveGState( m_cgContext ) ;
 355
 356         wxASSERT_MSG( status == noErr , wxT("Cannot nest wxDCs on the same window") ) ;
 357
 358         CGContextTranslateCTM( m_cgContext , 0 , bounds.bottom - bounds.top ) ;
 359         CGContextScaleCTM( m_cgContext , 1 , -1 ) ;
 360
 361         CGContextSaveGState( m_cgContext ) ;
 362         SetPen( m_pen ) ;
 363         SetBrush( m_brush ) ;
 364     }
 365
 366     return m_cgContext ;
 367 }
 368
 369 void wxMacCGContext::SetNativeContext( CGContextRef cg )
 370 {
 371     // we allow either setting or clearing but not replacing
 372     wxASSERT( m_cgContext == NULL || cg == NULL ) ;
 373
 374     if ( cg )
 375         CGContextSaveGState( cg ) ;
 376     m_cgContext = cg ;
 377 }
 378
 379 void wxMacCGContext::Translate( wxCoord dx , wxCoord dy )
 380 {
 381     CGContextTranslateCTM( m_cgContext, dx, dy );
 382 }
 383
 384 void wxMacCGContext::Scale( wxCoord xScale , wxCoord yScale )
 385 {
 386     CGContextScaleCTM( m_cgContext , xScale , yScale ) ;
 387 }
 388
 389 void wxMacCGContext::DrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 390 {
 391     CGImageRef image = (CGImageRef)( bmp.CGImageCreate() ) ;
 392     HIRect r = CGRectMake( 0 , 0 , w , h );
 393
 394     CGContextSaveGState( m_cgContext );
 395     CGContextTranslateCTM( m_cgContext, x , y + h );
 396     CGContextScaleCTM( m_cgContext, 1, -1 );
 397
 398     // in case image is a mask, set the foreground color
 399     CGContextSetRGBFillColor( m_cgContext , m_textForegroundColor.Red() / 255.0 , m_textForegroundColor.Green() / 255.0 ,
 400         m_textForegroundColor.Blue() / 255.0 , m_textForegroundColor.Alpha() / 255.0 ) ;
 401     CGContextDrawImage( m_cgContext, r, image );
 402     CGContextRestoreGState( m_cgContext );
 403
 404     CGImageRelease( image ) ;
 405 }
 406
 407 void wxMacCGContext::DrawIcon( const wxIcon &icon, wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 408 {
 409     CGRect r = CGRectMake( 0 , 0 , w , h ) ;
 410     CGContextSaveGState( m_cgContext );
 411     CGContextTranslateCTM( m_cgContext, x , y + h );
 412     CGContextScaleCTM( m_cgContext, 1, -1 );
 413     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
 414         NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) ) ;
 415     CGContextRestoreGState( m_cgContext ) ;
 416 }
 417
 418 void wxMacCGContext::PushState()
 419 {
 420     CGContextSaveGState( m_cgContext );
 421 }
 422
 423 void wxMacCGContext::PopState()
 424 {
 425     CGContextRestoreGState( m_cgContext );
 426 }
 427
 428 void wxMacCGContext::SetTextColor( const wxColour &col )
 429 {
 430     m_textForegroundColor = col ;
 431 }
 432
 433 #pragma mark -
 434 #pragma mark wxMacCGPattern, ImagePattern, HatchPattern classes
 435
 436 // CGPattern wrapper class: always allocate on heap, never call destructor
 437
 438 class wxMacCGPattern
 439 {
 440 public :
 441     wxMacCGPattern() {}
 442
 443     // is guaranteed to be called only with a non-Null CGContextRef
 444     virtual void Render( CGContextRef ctxRef ) = 0 ;
 445
 446     operator CGPatternRef() const { return m_patternRef ; }
 447
 448 protected :
 449     virtual ~wxMacCGPattern()
 450     {
 451         // as this is called only when the m_patternRef is been released;
 452         // don't release it again
 453     }
 454
 455     static void _Render( void *info, CGContextRef ctxRef )
 456     {
 457         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 458         if ( self && ctxRef )
 459             self->Render( ctxRef ) ;
 460     }
 461
 462     static void _Dispose( void *info )
 463     {
 464         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 465         delete self ;
 466     }
 467
 468     CGPatternRef m_patternRef ;
 469
 470     static const CGPatternCallbacks ms_Callbacks ;
 471 } ;
 472
 473 const CGPatternCallbacks wxMacCGPattern::ms_Callbacks = { 0, &wxMacCGPattern::_Render, &wxMacCGPattern::_Dispose };
 474
 475 class ImagePattern : public wxMacCGPattern
 476 {
 477 public :
 478     ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
 479     {
 480         wxASSERT( bmp && bmp->Ok() ) ;
 481
 482         Init( (CGImageRef) bmp->CGImageCreate() , transform ) ;
 483     }
 484
 485     // ImagePattern takes ownership of CGImageRef passed in
 486     ImagePattern( CGImageRef image , const CGAffineTransform& transform )
 487     {
 488         if ( image )
 489             CFRetain( image ) ;
 490
 491         Init( image , transform ) ;
 492     }
 493
 494     virtual void Render( CGContextRef ctxRef )
 495     {
 496         if (m_image != NULL)
 497             HIViewDrawCGImage( ctxRef, &m_imageBounds, m_image );
 498     }
 499
 500 protected :
 501     void Init( CGImageRef image, const CGAffineTransform& transform )
 502     {
 503         m_image = image ;
 504         if ( m_image )
 505         {
 506             m_imageBounds = CGRectMake( 0.0, 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) ) ;
 507             m_patternRef = CGPatternCreate(
 508                 this , m_imageBounds, transform ,
 509                 m_imageBounds.size.width, m_imageBounds.size.height,
 510                 kCGPatternTilingNoDistortion, true , &wxMacCGPattern::ms_Callbacks ) ;
 511         }
 512     }
 513
 514     virtual ~ImagePattern()
 515     {
 516         if ( m_image )
 517             CGImageRelease( m_image ) ;
 518     }
 519
 520     CGImageRef m_image ;
 521     CGRect m_imageBounds ;
 522 } ;
 523
 524 class HatchPattern : public wxMacCGPattern
 525 {
 526 public :
 527     HatchPattern( int hatchstyle, const CGAffineTransform& transform )
 528     {
 529         m_hatch = hatchstyle ;
 530         m_imageBounds = CGRectMake( 0.0, 0.0, 8.0 , 8.0 ) ;
 531         m_patternRef = CGPatternCreate(
 532             this , m_imageBounds, transform ,
 533             m_imageBounds.size.width, m_imageBounds.size.height,
 534             kCGPatternTilingNoDistortion, false , &wxMacCGPattern::ms_Callbacks ) ;
 535     }
 536
 537     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 538     {
 539 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
 540         if ( UMAGetSystemVersion() >= 0x1040 )
 541         {
 542             CGContextStrokeLineSegments( ctxRef , pts , count ) ;
 543         }
 544         else
 545 #endif
 546         {
 547             CGContextBeginPath( ctxRef );
 548             for (size_t i = 0; i < count; i += 2)
 549             {
 550                 CGContextMoveToPoint(ctxRef, pts[i].x, pts[i].y);
 551                 CGContextAddLineToPoint(ctxRef, pts[i+1].x, pts[i+1].y);
 552             }
 553             CGContextStrokePath(ctxRef);
 554         }
 555     }
 556
 557     virtual void Render( CGContextRef ctxRef )
 558     {
 559         switch ( m_hatch )
 560         {
 561             case wxBDIAGONAL_HATCH :
 562                 {
 563                     CGPoint pts[] =
 564                     {
 565                     { 8.0 , 0.0 } , { 0.0 , 8.0 }
 566                     };
 567                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 568                 }
 569                 break ;
 570
 571             case wxCROSSDIAG_HATCH :
 572                 {
 573                     CGPoint pts[] =
 574                     {
 575                         { 0.0 , 0.0 } , { 8.0 , 8.0 } ,
 576                         { 8.0 , 0.0 } , { 0.0 , 8.0 }
 577                     };
 578                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 579                 }
 580                 break ;
 581
 582             case wxFDIAGONAL_HATCH :
 583                 {
 584                     CGPoint pts[] =
 585                     {
 586                     { 0.0 , 0.0 } , { 8.0 , 8.0 }
 587                     };
 588                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 589                 }
 590                 break ;
 591
 592             case wxCROSS_HATCH :
 593                 {
 594                     CGPoint pts[] =
 595                     {
 596                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 597                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 598                     };
 599                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 600                 }
 601                 break ;
 602
 603             case wxHORIZONTAL_HATCH :
 604                 {
 605                     CGPoint pts[] =
 606                     {
 607                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 608                     };
 609                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 610                 }
 611                 break ;
 612
 613             case wxVERTICAL_HATCH :
 614                 {
 615                     CGPoint pts[] =
 616                     {
 617                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 618                     };
 619                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 620                 }
 621                 break ;
 622
 623             default:
 624                 break;
 625         }
 626     }
 627
 628 protected :
 629     virtual ~HatchPattern() {}
 630
 631     CGRect      m_imageBounds ;
 632     int         m_hatch ;
 633 };
 634
 635 #pragma mark -
 636
 637 void wxMacCGContext::SetPen( const wxPen &pen )
 638 {
 639     m_pen = pen ;
 640     if ( m_cgContext == NULL )
 641         return ;
 642
 643     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
 644     bool stroke = pen.GetStyle() != wxTRANSPARENT ;
 645
 646 #if 0
 647     // we can benchmark performance; should go into a setting eventually
 648     CGContextSetShouldAntialias( m_cgContext , false ) ;
 649 #endif
 650
 651     if ( fill || stroke )
 652     {
 653         // set up brushes
 654         m_mode = kCGPathFill ; // just a default
 655
 656         if ( stroke )
 657         {
 658             CGContextSetRGBStrokeColor( m_cgContext , pen.GetColour().Red() / 255.0 , pen.GetColour().Green() / 255.0 ,
 659                     pen.GetColour().Blue() / 255.0 , pen.GetColour().Alpha() / 255.0 ) ;
 660
 661             // TODO: * m_dc->m_scaleX
 662             CGFloat penWidth = pen.GetWidth();
 663             if (penWidth <= 0.0)
 664                 penWidth = 0.1;
 665             CGContextSetLineWidth( m_cgContext , penWidth ) ;
 666
 667             CGLineCap cap ;
 668             switch ( pen.GetCap() )
 669             {
 670                 case wxCAP_ROUND :
 671                     cap = kCGLineCapRound ;
 672                     break ;
 673
 674                 case wxCAP_PROJECTING :
 675                     cap = kCGLineCapSquare ;
 676                     break ;
 677
 678                 case wxCAP_BUTT :
 679                     cap = kCGLineCapButt ;
 680                     break ;
 681
 682                 default :
 683                     cap = kCGLineCapButt ;
 684                     break ;
 685             }
 686
 687             CGLineJoin join ;
 688             switch ( pen.GetJoin() )
 689             {
 690                 case wxJOIN_BEVEL :
 691                     join = kCGLineJoinBevel ;
 692                     break ;
 693
 694                 case wxJOIN_MITER :
 695                     join = kCGLineJoinMiter ;
 696                     break ;
 697
 698                 case wxJOIN_ROUND :
 699                     join = kCGLineJoinRound ;
 700                     break ;
 701
 702                 default :
 703                     join = kCGLineJoinMiter ;
 704                     break;
 705             }
 706
 707             m_mode = kCGPathStroke ;
 708             int count = 0 ;
 709
 710             const CGFloat *lengths = NULL ;
 711             CGFloat *userLengths = NULL ;
 712
 713             const CGFloat dashUnit = penWidth < 1.0 ? 1.0 : penWidth;
 714
 715             const CGFloat dotted[] = { dashUnit , dashUnit + 2.0 };
 716             const CGFloat short_dashed[] = { 9.0 , 6.0 };
 717             const CGFloat dashed[] = { 19.0 , 9.0 };
 718             const CGFloat dotted_dashed[] = { 9.0 , 6.0 , 3.0 , 3.0 };
 719
 720             switch ( pen.GetStyle() )
 721             {
 722                 case wxSOLID :
 723                     break ;
 724
 725                 case wxDOT :
 726                     lengths = dotted ;
 727                     count = WXSIZEOF(dotted);
 728                     break ;
 729
 730                 case wxLONG_DASH :
 731                     lengths = dashed ;
 732                     count = WXSIZEOF(dashed) ;
 733                     break ;
 734
 735                 case wxSHORT_DASH :
 736                     lengths = short_dashed ;
 737                     count = WXSIZEOF(short_dashed) ;
 738                     break ;
 739
 740                 case wxDOT_DASH :
 741                     lengths = dotted_dashed ;
 742                     count = WXSIZEOF(dotted_dashed);
 743                     break ;
 744
 745                 case wxUSER_DASH :
 746                     wxDash *dashes ;
 747                     count = pen.GetDashes( &dashes ) ;
 748                     if ((dashes != NULL) && (count > 0))
 749                     {
 750                         userLengths = new CGFloat[count] ;
 751                         for ( int i = 0 ; i < count ; ++i )
 752                         {
 753                             userLengths[i] = dashes[i] * dashUnit ;
 754
 755                             if ( i % 2 == 1 && userLengths[i] < dashUnit + 2.0 )
 756                                 userLengths[i] = dashUnit + 2.0 ;
 757                             else if ( i % 2 == 0 && userLengths[i] < dashUnit )
 758                                 userLengths[i] = dashUnit ;
 759                         }
 760                     }
 761                     lengths = userLengths ;
 762                     break ;
 763
 764                 case wxSTIPPLE :
 765                     {
 766                         CGFloat  alphaArray[1] = { 1.0 } ;
 767                         wxBitmap* bmp = pen.GetStipple() ;
 768                         if ( bmp && bmp->Ok() )
 769                         {
 770                             wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 771                             CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 772                             wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 773                             CGContextSetStrokePattern( m_cgContext, pattern , alphaArray ) ;
 774                         }
 775                     }
 776                     break ;
 777
 778                 default :
 779                     {
 780                         wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 781                         CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 782                         wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( pen.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 783
 784                         CGFloat  colorArray[4] = { pen.GetColour().Red() / 255.0 , pen.GetColour().Green() / 255.0 ,
 785                             pen.GetColour().Blue() / 255.0 , pen.GetColour().Alpha() / 255.0 } ;
 786
 787                         CGContextSetStrokePattern( m_cgContext, pattern , colorArray ) ;
 788                     }
 789                     break ;
 790             }
 791
 792             if ((lengths != NULL) && (count > 0))
 793             {
 794                 CGContextSetLineDash( m_cgContext , 0 , lengths , count ) ;
 795                 // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 796                 cap = kCGLineCapButt ;
 797             }
 798             else
 799             {
 800                CGContextSetLineDash( m_cgContext , 0 , NULL , 0 ) ;
 801             }
 802
 803             CGContextSetLineCap( m_cgContext , cap ) ;
 804             CGContextSetLineJoin( m_cgContext , join ) ;
 805
 806             delete[] userLengths ;
 807         }
 808
 809         if ( fill && stroke )
 810             m_mode = kCGPathFillStroke ;
 811     }
 812 }
 813
 814 void wxMacCGContext::SetBrush( const wxBrush &brush )
 815 {
 816     m_brush = brush ;
 817     if ( m_cgContext == NULL )
 818         return ;
 819
 820     bool fill = brush.GetStyle() != wxTRANSPARENT ;
 821     bool stroke = m_pen.GetStyle() != wxTRANSPARENT ;
 822
 823 #if 0
 824     // we can benchmark performance, should go into a setting later
 825     CGContextSetShouldAntialias( m_cgContext , false ) ;
 826 #endif
 827
 828     if ( fill || stroke )
 829     {
 830         // setup brushes
 831         m_mode = kCGPathFill ; // just a default
 832
 833         if ( fill )
 834         {
 835             if ( brush.GetStyle() == wxSOLID )
 836             {
 837                 CGContextSetRGBFillColor( m_cgContext , brush.GetColour().Red() / 255.0 , brush.GetColour().Green() / 255.0 ,
 838                     brush.GetColour().Blue() / 255.0 , brush.GetColour().Alpha() / 255.0 ) ;
 839             }
 840             else if ( brush.IsHatch() )
 841             {
 842                 wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 843                 CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 844                 wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( brush.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 845
 846                 CGFloat  colorArray[4] = { brush.GetColour().Red() / 255.0 , brush.GetColour().Green() / 255.0 ,
 847                     brush.GetColour().Blue() / 255.0 , brush.GetColour().Alpha() / 255.0 } ;
 848
 849                 CGContextSetFillPattern( m_cgContext, pattern , colorArray ) ;
 850             }
 851             else
 852             {
 853                 // now brush is a bitmap
 854                 CGFloat  alphaArray[1] = { 1.0 } ;
 855                 wxBitmap* bmp = brush.GetStipple() ;
 856                 if ( bmp && bmp->Ok() )
 857                 {
 858                     wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 859                     CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 860                     wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 861                     CGContextSetFillPattern( m_cgContext, pattern , alphaArray ) ;
 862                 }
 863             }
 864
 865             m_mode = kCGPathFill ;
 866         }
 867
 868         if ( fill && stroke )
 869             m_mode = kCGPathFillStroke ;
 870         else if ( stroke )
 871             m_mode = kCGPathStroke ;
 872     }
 873 }
 874
 875 void wxMacCGContext::DrawText( const wxString &str, wxCoord x, wxCoord y, double angle )
 876 {
 877     OSStatus status = noErr ;
 878     ATSUTextLayout atsuLayout ;
 879     UniCharCount chars = str.length() ;
 880     UniChar* ubuf = NULL ;
 881
 882 #if SIZEOF_WCHAR_T == 4
 883     wxMBConvUTF16 converter ;
 884 #if wxUSE_UNICODE
 885     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
 886     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
 887     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
 888 #else
 889     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
 890     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
 891     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
 892     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
 893 #endif
 894     chars = unicharlen / 2 ;
 895 #else
 896 #if wxUSE_UNICODE
 897     ubuf = (UniChar*) str.wc_str() ;
 898 #else
 899     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
 900     chars = wxWcslen( wchar.data() ) ;
 901     ubuf = (UniChar*) wchar.data() ;
 902 #endif
 903 #endif
 904
 905     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
 906         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
 907
 908     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
 909
 910     status = ::ATSUSetTransientFontMatching( atsuLayout , true ) ;
 911     wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
 912
 913     int iAngle = int( angle );
 914     if ( abs(iAngle) > 0 )
 915     {
 916         Fixed atsuAngle = IntToFixed( iAngle ) ;
 917         ATSUAttributeTag atsuTags[] =
 918         {
 919             kATSULineRotationTag ,
 920         } ;
 921         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 922         {
 923             sizeof( Fixed ) ,
 924         } ;
 925         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 926         {
 927             &atsuAngle ,
 928         } ;
 929         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
 930             atsuTags, atsuSizes, atsuValues ) ;
 931     }
 932
 933     {
 934         ATSUAttributeTag atsuTags[] =
 935         {
 936             kATSUCGContextTag ,
 937         } ;
 938         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 939         {
 940             sizeof( CGContextRef ) ,
 941         } ;
 942         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 943         {
 944             &m_cgContext ,
 945         } ;
 946         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
 947             atsuTags, atsuSizes, atsuValues ) ;
 948     }
 949
 950     ATSUTextMeasurement textBefore, textAfter ;
 951     ATSUTextMeasurement ascent, descent ;
 952
 953     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
 954         &textBefore , &textAfter, &ascent , &descent );
 955
 956     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
 957
 958     Rect rect ;
 959 /*
 960     // TODO
 961     if ( m_backgroundMode == wxSOLID )
 962     {
 963         wxGraphicPath* path = m_graphicContext->CreatePath() ;
 964         path->MoveToPoint( drawX , drawY ) ;
 965         path->AddLineToPoint(
 966             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent)) ,
 967             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent)) ) ;
 968         path->AddLineToPoint(
 969             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent ) + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
 970             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent) - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
 971         path->AddLineToPoint(
 972             (int) (drawX + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
 973             (int) (drawY - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
 974
 975         m_graphicContext->FillPath( path , m_textBackgroundColour ) ;
 976         delete path ;
 977     }
 978 */
 979     x += (int)(sin(angle / RAD2DEG) * FixedToInt(ascent));
 980     y += (int)(cos(angle / RAD2DEG) * FixedToInt(ascent));
 981
 982     status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
 983         IntToFixed(x) , IntToFixed(y) , &rect );
 984     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
 985
 986     CGContextSaveGState(m_cgContext);
 987     CGContextTranslateCTM(m_cgContext, x, y);
 988     CGContextScaleCTM(m_cgContext, 1, -1);
 989     status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
 990         IntToFixed(0) , IntToFixed(0) );
 991
 992     wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
 993
 994     CGContextRestoreGState(m_cgContext) ;
 995
 996     ::ATSUDisposeTextLayout(atsuLayout);
 997
 998 #if SIZEOF_WCHAR_T == 4
 999     free( ubuf ) ;
1000 #endif
1001 }
1002
1003 void wxMacCGContext::GetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
1004                             wxCoord *descent, wxCoord *externalLeading ) const
1005 {
1006     wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoGetTextExtent - no valid font set") ) ;
1007
1008     OSStatus status = noErr ;
1009
1010     ATSUTextLayout atsuLayout ;
1011     UniCharCount chars = str.length() ;
1012     UniChar* ubuf = NULL ;
1013
1014 #if SIZEOF_WCHAR_T == 4
1015     wxMBConvUTF16 converter ;
1016 #if wxUSE_UNICODE
1017     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
1018     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1019     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
1020 #else
1021     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1022     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1023     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1024     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1025 #endif
1026     chars = unicharlen / 2 ;
1027 #else
1028 #if wxUSE_UNICODE
1029     ubuf = (UniChar*) str.wc_str() ;
1030 #else
1031     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1032     chars = wxWcslen( wchar.data() ) ;
1033     ubuf = (UniChar*) wchar.data() ;
1034 #endif
1035 #endif
1036
1037     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1038         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1039
1040     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
1041
1042     ATSUTextMeasurement textBefore, textAfter ;
1043     ATSUTextMeasurement textAscent, textDescent ;
1044
1045     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1046         &textBefore , &textAfter, &textAscent , &textDescent );
1047
1048     if ( height )
1049         *height = FixedToInt(textAscent + textDescent) ;
1050     if ( descent )
1051         *descent = FixedToInt(textDescent) ;
1052     if ( externalLeading )
1053         *externalLeading = 0 ;
1054     if ( width )
1055         *width = FixedToInt(textAfter - textBefore) ;
1056
1057     ::ATSUDisposeTextLayout(atsuLayout);
1058 }
1059
1060 void wxMacCGContext::GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
1061 {
1062     widths.Empty();
1063     widths.Add(0, text.length());
1064
1065     if (text.empty())
1066         return ;
1067
1068     ATSUTextLayout atsuLayout ;
1069     UniCharCount chars = text.length() ;
1070     UniChar* ubuf = NULL ;
1071
1072 #if SIZEOF_WCHAR_T == 4
1073     wxMBConvUTF16 converter ;
1074 #if wxUSE_UNICODE
1075     size_t unicharlen = converter.WC2MB( NULL , text.wc_str() , 0 ) ;
1076     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1077     converter.WC2MB( (char*) ubuf , text.wc_str(), unicharlen + 2 ) ;
1078 #else
1079     const wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1080     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1081     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1082     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1083 #endif
1084     chars = unicharlen / 2 ;
1085 #else
1086 #if wxUSE_UNICODE
1087     ubuf = (UniChar*) text.wc_str() ;
1088 #else
1089     wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1090     chars = wxWcslen( wchar.data() ) ;
1091     ubuf = (UniChar*) wchar.data() ;
1092 #endif
1093 #endif
1094
1095     ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1096         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1097
1098     for ( int pos = 0; pos < (int)chars; pos ++ )
1099     {
1100         unsigned long actualNumberOfBounds = 0;
1101         ATSTrapezoid glyphBounds;
1102
1103         // We get a single bound, since the text should only require one. If it requires more, there is an issue
1104         OSStatus result;
1105         result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
1106             kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
1107         if (result != noErr || actualNumberOfBounds != 1 )
1108             return ;
1109
1110         widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
1111         //unsigned char uch = s[i];
1112     }
1113
1114     ::ATSUDisposeTextLayout(atsuLayout);
1115 }
1116
1117 void wxMacCGContext::SetFont( const wxFont &font )
1118 {
1119     if ( m_macATSUIStyle )
1120     {
1121         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
1122         m_macATSUIStyle = NULL ;
1123     }
1124
1125     if ( font.Ok() )
1126     {
1127         OSStatus status ;
1128
1129         status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , (ATSUStyle*) &m_macATSUIStyle ) ;
1130
1131         wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") ) ;
1132
1133         // we need the scale here ...
1134
1135         Fixed atsuSize = IntToFixed( int( /*m_scaleY*/ 1 * font.MacGetFontSize()) ) ;
1136         RGBColor atsuColor = MAC_WXCOLORREF( m_textForegroundColor.GetPixel() ) ;
1137         ATSUAttributeTag atsuTags[] =
1138         {
1139                 kATSUSizeTag ,
1140                 kATSUColorTag ,
1141         } ;
1142         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1143         {
1144                 sizeof( Fixed ) ,
1145                 sizeof( RGBColor ) ,
1146         } ;
1147         ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1148         {
1149                 &atsuSize ,
1150                 &atsuColor ,
1151         } ;
1152
1153         status = ::ATSUSetAttributes(
1154             (ATSUStyle)m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
1155             atsuTags, atsuSizes, atsuValues);
1156
1157         wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") ) ;
1158     }
1159 }
1160
1161
1162 #pragma mark -
1163
1164 wxDC::wxDC()
1165 {
1166     m_ok = false ;
1167     m_colour = true;
1168     m_mm_to_pix_x = mm2pt;
1169     m_mm_to_pix_y = mm2pt;
1170
1171     m_externalDeviceOriginX = 0;
1172     m_externalDeviceOriginY = 0;
1173     m_logicalScaleX = 1.0;
1174     m_logicalScaleY = 1.0;
1175     m_userScaleX = 1.0;
1176     m_userScaleY = 1.0;
1177     m_scaleX = 1.0;
1178     m_scaleY = 1.0;
1179     m_needComputeScaleX =
1180     m_needComputeScaleY = false;
1181
1182     m_macPort = 0 ;
1183     m_macLocalOrigin.x =
1184     m_macLocalOrigin.y = 0 ;
1185
1186     m_pen = *wxBLACK_PEN;
1187     m_font = *wxNORMAL_FONT;
1188     m_brush = *wxWHITE_BRUSH;
1189
1190     m_macATSUIStyle = NULL ;
1191     m_graphicContext = NULL ;
1192 }
1193
1194 wxDC::~wxDC()
1195 {
1196     if ( m_macATSUIStyle )
1197     {
1198         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
1199         m_macATSUIStyle = NULL ;
1200     }
1201
1202     delete m_graphicContext ;
1203 }
1204
1205 void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask )
1206 {
1207     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid DC") );
1208     wxCHECK_RET( bmp.Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid bitmap") );
1209
1210     wxCoord xx = XLOG2DEVMAC(x);
1211     wxCoord yy = YLOG2DEVMAC(y);
1212     wxCoord w = bmp.GetWidth();
1213     wxCoord h = bmp.GetHeight();
1214     wxCoord ww = XLOG2DEVREL(w);
1215     wxCoord hh = YLOG2DEVREL(h);
1216
1217     if ( bmp.GetDepth()==1 )
1218     {
1219         wxGraphicPath* path = m_graphicContext->CreatePath() ;
1220         path->AddRectangle( xx , yy , ww , hh ) ;
1221         m_graphicContext->FillPath( path , m_textBackgroundColour, wxODDEVEN_RULE) ;
1222         delete path;
1223         m_graphicContext->DrawBitmap( bmp, xx , yy , ww , hh ) ;
1224     }
1225     else
1226     {
1227         m_graphicContext->DrawBitmap( bmp, xx , yy , ww , hh ) ;
1228     }
1229 }
1230
1231 void wxDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
1232 {
1233     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid DC") );
1234     wxCHECK_RET( icon.Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid icon") );
1235
1236     wxCoord xx = XLOG2DEVMAC(x);
1237     wxCoord yy = YLOG2DEVMAC(y);
1238     wxCoord w = icon.GetWidth();
1239     wxCoord h = icon.GetHeight();
1240     wxCoord ww = XLOG2DEVREL(w);
1241     wxCoord hh = YLOG2DEVREL(h);
1242
1243     m_graphicContext->DrawIcon( icon , xx, yy, ww, hh ) ;
1244 }
1245
1246 void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
1247 {
1248     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegion - invalid DC") );
1249
1250     wxCoord xx, yy, ww, hh;
1251     xx = XLOG2DEVMAC(x);
1252     yy = YLOG2DEVMAC(y);
1253     ww = XLOG2DEVREL(width);
1254     hh = YLOG2DEVREL(height);
1255
1256     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1257     CGRect clipRect = CGRectMake( xx , yy , ww, hh ) ;
1258     CGContextClipToRect( cgContext , clipRect ) ;
1259
1260 //    SetRectRgn( (RgnHandle) m_macCurrentClipRgn , xx , yy , xx + ww , yy + hh ) ;
1261 //    SectRgn( (RgnHandle) m_macCurrentClipRgn , (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
1262
1263     if ( m_clipping )
1264     {
1265         m_clipX1 = wxMax( m_clipX1, xx );
1266         m_clipY1 = wxMax( m_clipY1, yy );
1267         m_clipX2 = wxMin( m_clipX2, (xx + ww) );
1268         m_clipY2 = wxMin( m_clipY2, (yy + hh) );
1269     }
1270     else
1271     {
1272         m_clipping = true;
1273
1274         m_clipX1 = xx;
1275         m_clipY1 = yy;
1276         m_clipX2 = xx + ww;
1277         m_clipY2 = yy + hh;
1278     }
1279
1280     // TODO: as soon as we don't reset the context for each operation anymore
1281     // we have to update the context as well
1282 }
1283
1284 void wxDC::DoSetClippingRegionAsRegion( const wxRegion &region )
1285 {
1286     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegionAsRegion - invalid DC") );
1287
1288     if (region.Empty())
1289     {
1290         DestroyClippingRegion();
1291         return;
1292     }
1293
1294     wxCoord x, y, w, h;
1295     region.GetBox( x, y, w, h );
1296     wxCoord xx, yy, ww, hh;
1297     xx = XLOG2DEVMAC(x);
1298     yy = YLOG2DEVMAC(y);
1299     ww = XLOG2DEVREL(w);
1300     hh = YLOG2DEVREL(h);
1301
1302     // if we have a scaling that we cannot map onto native regions
1303     // we must use the box
1304     if ( ww != w || hh != h )
1305     {
1306         wxDC::DoSetClippingRegion( x, y, w, h );
1307     }
1308     else
1309     {
1310 #if 0
1311         CopyRgn( (RgnHandle) region.GetWXHRGN() , (RgnHandle) m_macCurrentClipRgn ) ;
1312         if ( xx != x || yy != y )
1313             OffsetRgn( (RgnHandle) m_macCurrentClipRgn , xx - x , yy - y ) ;
1314         SectRgn( (RgnHandle)m_macCurrentClipRgn , (RgnHandle)m_macBoundaryClipRgn , (RgnHandle)m_macCurrentClipRgn ) ;
1315 #endif
1316
1317         if ( m_clipping )
1318         {
1319             m_clipX1 = wxMax( m_clipX1, xx );
1320             m_clipY1 = wxMax( m_clipY1, yy );
1321             m_clipX2 = wxMin( m_clipX2, (xx + ww) );
1322             m_clipY2 = wxMin( m_clipY2, (yy + hh) );
1323         }
1324         else
1325         {
1326             m_clipping = true;
1327
1328             m_clipX1 = xx;
1329             m_clipY1 = yy;
1330             m_clipX2 = xx + ww;
1331             m_clipY2 = yy + hh;
1332         }
1333     }
1334 }
1335
1336 void wxDC::DestroyClippingRegion()
1337 {
1338 //    CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
1339
1340     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1341     CGContextRestoreGState( cgContext );
1342     CGContextSaveGState( cgContext );
1343
1344     m_graphicContext->SetPen( m_pen ) ;
1345     m_graphicContext->SetBrush( m_brush ) ;
1346
1347     m_clipping = false;
1348 }
1349
1350 void wxDC::DoGetSizeMM( int* width, int* height ) const
1351 {
1352     int w = 0, h = 0;
1353
1354     GetSize( &w, &h );
1355     if (width)
1356         *width = long( double(w) / (m_scaleX * m_mm_to_pix_x) );
1357     if (height)
1358         *height = long( double(h) / (m_scaleY * m_mm_to_pix_y) );
1359 }
1360
1361 void wxDC::SetTextForeground( const wxColour &col )
1362 {
1363     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextForeground - invalid DC") );
1364
1365     if ( col != m_textForegroundColour )
1366     {
1367         m_textForegroundColour = col;
1368         m_graphicContext->SetTextColor( col );
1369         // in the current implementation the font contains the text color
1370         m_graphicContext->SetFont(m_font);
1371     }
1372 }
1373
1374 void wxDC::SetTextBackground( const wxColour &col )
1375 {
1376     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextBackground - invalid DC") );
1377
1378     m_textBackgroundColour = col;
1379 }
1380
1381 void wxDC::SetMapMode( int mode )
1382 {
1383     switch (mode)
1384     {
1385     case wxMM_TWIPS:
1386         SetLogicalScale( twips2mm * m_mm_to_pix_x, twips2mm * m_mm_to_pix_y );
1387         break;
1388
1389     case wxMM_POINTS:
1390         SetLogicalScale( pt2mm * m_mm_to_pix_x, pt2mm * m_mm_to_pix_y );
1391         break;
1392
1393     case wxMM_METRIC:
1394         SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
1395         break;
1396
1397     case wxMM_LOMETRIC:
1398         SetLogicalScale( m_mm_to_pix_x / 10.0, m_mm_to_pix_y / 10.0 );
1399         break;
1400
1401     case wxMM_TEXT:
1402     default:
1403         SetLogicalScale( 1.0, 1.0 );
1404         break;
1405     }
1406
1407     if (mode != wxMM_TEXT)
1408     {
1409         m_needComputeScaleX =
1410         m_needComputeScaleY = true;
1411     }
1412 }
1413
1414 void wxDC::SetUserScale( double x, double y )
1415 {
1416     // allow negative ? -> no
1417     m_userScaleX = x;
1418     m_userScaleY = y;
1419     ComputeScaleAndOrigin();
1420 }
1421
1422 void wxDC::SetLogicalScale( double x, double y )
1423 {
1424     // allow negative ?
1425     m_logicalScaleX = x;
1426     m_logicalScaleY = y;
1427     ComputeScaleAndOrigin();
1428 }
1429
1430 void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
1431 {
1432     m_logicalOriginX = x * m_signX;   // is this still correct ?
1433     m_logicalOriginY = y * m_signY;
1434     ComputeScaleAndOrigin();
1435 }
1436
1437 void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
1438 {
1439     m_externalDeviceOriginX = x;
1440     m_externalDeviceOriginY = y;
1441     ComputeScaleAndOrigin();
1442 }
1443
1444 void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1445 {
1446     m_signX = (xLeftRight ?  1 : -1);
1447     m_signY = (yBottomUp ? -1 :  1);
1448     ComputeScaleAndOrigin();
1449 }
1450
1451 wxSize wxDC::GetPPI() const
1452 {
1453     return wxSize(72, 72);
1454 }
1455
1456 int wxDC::GetDepth() const
1457 {
1458     return 32;
1459 }
1460
1461 void wxDC::ComputeScaleAndOrigin()
1462 {
1463     // CMB: copy scale to see if it changes
1464     double origScaleX = m_scaleX;
1465     double origScaleY = m_scaleY;
1466     m_scaleX = m_logicalScaleX * m_userScaleX;
1467     m_scaleY = m_logicalScaleY * m_userScaleY;
1468     m_deviceOriginX = m_externalDeviceOriginX;
1469     m_deviceOriginY = m_externalDeviceOriginY;
1470
1471     // CMB: if scale has changed call SetPen to recalulate the line width
1472     if (m_scaleX != origScaleX || m_scaleY != origScaleY)
1473     {
1474         // this is a bit artificial, but we need to force wxDC to think
1475         // the pen has changed
1476         wxPen pen( GetPen() );
1477
1478         m_pen = wxNullPen;
1479         SetPen( pen );
1480     }
1481 }
1482
1483 void wxDC::SetPalette( const wxPalette& palette )
1484 {
1485 }
1486
1487 void wxDC::SetBackgroundMode( int mode )
1488 {
1489     m_backgroundMode = mode ;
1490 }
1491
1492 void wxDC::SetFont( const wxFont &font )
1493 {
1494     m_font = font;
1495     if ( m_graphicContext )
1496         m_graphicContext->SetFont( font ) ;
1497 }
1498
1499 void wxDC::SetPen( const wxPen &pen )
1500 {
1501     if ( m_pen == pen )
1502         return ;
1503
1504     m_pen = pen;
1505     if ( m_graphicContext )
1506     {
1507         if ( m_pen.GetStyle() == wxSOLID || m_pen.GetStyle() == wxTRANSPARENT )
1508         {
1509             m_graphicContext->SetPen( m_pen ) ;
1510         }
1511         else
1512         {
1513             // we have to compensate for moved device origins etc. otherwise patterned pens are standing still
1514             // eg when using a wxScrollWindow and scrolling around
1515             int origX = XLOG2DEVMAC( 0 ) ;
1516             int origY = YLOG2DEVMAC( 0 ) ;
1517             m_graphicContext->Translate( origX , origY ) ;
1518             m_graphicContext->SetPen( m_pen ) ;
1519             m_graphicContext->Translate( -origX , -origY ) ;
1520         }
1521     }
1522 }
1523
1524 void wxDC::SetBrush( const wxBrush &brush )
1525 {
1526     if (m_brush == brush)
1527         return;
1528
1529     m_brush = brush;
1530     if ( m_graphicContext )
1531     {
1532         if ( brush.GetStyle() == wxSOLID || brush.GetStyle() == wxTRANSPARENT )
1533         {
1534             m_graphicContext->SetBrush( m_brush ) ;
1535         }
1536         else
1537         {
1538             // we have to compensate for moved device origins etc. otherwise patterned brushes are standing still
1539             // eg when using a wxScrollWindow and scrolling around
1540             int origX = XLOG2DEVMAC(0) ;
1541             int origY = YLOG2DEVMAC(0) ;
1542             m_graphicContext->Translate( origX , origY ) ;
1543             m_graphicContext->SetBrush( m_brush ) ;
1544             m_graphicContext->Translate( -origX , -origY ) ;
1545         }
1546     }
1547 }
1548
1549 void wxDC::SetBackground( const wxBrush &brush )
1550 {
1551     if (m_backgroundBrush == brush)
1552         return;
1553
1554     m_backgroundBrush = brush;
1555     if (!m_backgroundBrush.Ok())
1556         return;
1557 }
1558
1559 void wxDC::SetLogicalFunction( int function )
1560 {
1561     if (m_logicalFunction == function)
1562         return;
1563
1564     m_logicalFunction = function ;
1565 #if wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1566     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1567     if ( m_logicalFunction == wxCOPY )
1568         CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
1569     else if ( m_logicalFunction == wxINVERT )
1570         CGContextSetBlendMode( cgContext, kCGBlendModeExclusion ) ;
1571     else
1572         CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
1573 #endif
1574 }
1575
1576 extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
1577                           const wxColour & col, int style);
1578
1579 bool wxDC::DoFloodFill(wxCoord x, wxCoord y,
1580                        const wxColour& col, int style)
1581 {
1582     return wxDoFloodFill(this, x, y, col, style);
1583 }
1584
1585 bool wxDC::DoGetPixel( wxCoord x, wxCoord y, wxColour *col ) const
1586 {
1587     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPixel - invalid DC") );
1588
1589     RGBColor colour;
1590 #ifndef __LP64__
1591     wxMacPortSaver helper((CGrafPtr)m_macPort) ;
1592     // NB: GetCPixel is a deprecated QD call, and a slow one at that
1593     GetCPixel(
1594         XLOG2DEVMAC(x) + m_macLocalOriginInPort.x - m_macLocalOrigin.x,
1595         YLOG2DEVMAC(y) + m_macLocalOriginInPort.y - m_macLocalOrigin.y, &colour );
1596 #endif
1597     // convert from Mac colour to wx
1598     col->Set( colour.red >> 8, colour.green >> 8, colour.blue >> 8 );
1599
1600     return true ;
1601 }
1602
1603 void wxDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
1604 {
1605     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLine - invalid DC") );
1606
1607 #if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1608     if ( m_logicalFunction != wxCOPY )
1609         return ;
1610 #endif
1611
1612     wxCoord xx1 = XLOG2DEVMAC(x1) ;
1613     wxCoord yy1 = YLOG2DEVMAC(y1) ;
1614     wxCoord xx2 = XLOG2DEVMAC(x2) ;
1615     wxCoord yy2 = YLOG2DEVMAC(y2) ;
1616
1617     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1618     path->MoveToPoint( xx1, yy1 ) ;
1619     path->AddLineToPoint( xx2 , yy2 ) ;
1620     path->CloseSubpath() ;
1621     m_graphicContext->StrokePath( path ) ;
1622     delete path ;
1623
1624     CalcBoundingBox(x1, y1);
1625     CalcBoundingBox(x2, y2);
1626 }
1627
1628 void wxDC::DoCrossHair( wxCoord x, wxCoord y )
1629 {
1630     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoCrossHair - invalid DC") );
1631
1632     if ( m_logicalFunction != wxCOPY )
1633         return ;
1634
1635     int w = 0, h = 0;
1636
1637     GetSize( &w, &h );
1638     wxCoord xx = XLOG2DEVMAC(x);
1639     wxCoord yy = YLOG2DEVMAC(y);
1640
1641     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1642     path->MoveToPoint( XLOG2DEVMAC(0), yy ) ;
1643     path->AddLineToPoint( XLOG2DEVMAC(w), yy ) ;
1644     path->CloseSubpath() ;
1645     path->MoveToPoint( xx, YLOG2DEVMAC(0) ) ;
1646     path->AddLineToPoint( xx, YLOG2DEVMAC(h) ) ;
1647     path->CloseSubpath() ;
1648     m_graphicContext->StrokePath( path ) ;
1649     delete path ;
1650
1651     CalcBoundingBox(x, y);
1652     CalcBoundingBox(x + w, y + h);
1653 }
1654
1655 void wxDC::DoDrawArc( wxCoord x1, wxCoord y1,
1656                       wxCoord x2, wxCoord y2,
1657                       wxCoord xc, wxCoord yc )
1658 {
1659     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawArc - invalid DC") );
1660
1661     if ( m_logicalFunction != wxCOPY )
1662         return ;
1663
1664     wxCoord xx1 = XLOG2DEVMAC(x1);
1665     wxCoord yy1 = YLOG2DEVMAC(y1);
1666     wxCoord xx2 = XLOG2DEVMAC(x2);
1667     wxCoord yy2 = YLOG2DEVMAC(y2);
1668     wxCoord xxc = XLOG2DEVMAC(xc);
1669     wxCoord yyc = YLOG2DEVMAC(yc);
1670
1671     double dx = xx1 - xxc;
1672     double dy = yy1 - yyc;
1673     double radius = sqrt((double)(dx * dx + dy * dy));
1674     wxCoord rad = (wxCoord)radius;
1675     double sa, ea;
1676     if (xx1 == xx2 && yy1 == yy2)
1677     {
1678         sa = 0.0;
1679         ea = 360.0;
1680     }
1681     else if (radius == 0.0)
1682     {
1683         sa = ea = 0.0;
1684     }
1685     else
1686     {
1687         sa = (xx1 - xxc == 0) ?
1688             (yy1 - yyc < 0) ? 90.0 : -90.0 :
1689         -atan2(double(yy1 - yyc), double(xx1 - xxc)) * RAD2DEG;
1690         ea = (xx2 - xxc == 0) ?
1691             (yy2 - yyc < 0) ? 90.0 : -90.0 :
1692         -atan2(double(yy2 - yyc), double(xx2 - xxc)) * RAD2DEG;
1693     }
1694
1695     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1696
1697     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1698     m_graphicContext->PushState() ;
1699     m_graphicContext->Translate( xxc, yyc ) ;
1700     m_graphicContext->Scale( 1, -1 ) ;
1701     if ( fill )
1702         path->MoveToPoint( 0, 0 ) ;
1703     path->AddArc( 0, 0, rad , DegToRad(sa) , DegToRad(ea), false ) ;
1704     if ( fill )
1705         path->AddLineToPoint( 0, 0 ) ;
1706     m_graphicContext->DrawPath( path ) ;
1707     m_graphicContext->PopState() ;
1708     delete path ;
1709 }
1710
1711 void wxDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h,
1712                               double sa, double ea )
1713 {
1714     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipticArc - invalid DC") );
1715
1716     if ( m_logicalFunction != wxCOPY )
1717         return ;
1718
1719     wxCoord xx = XLOG2DEVMAC(x);
1720     wxCoord yy = YLOG2DEVMAC(y);
1721     wxCoord ww = m_signX * XLOG2DEVREL(w);
1722     wxCoord hh = m_signY * YLOG2DEVREL(h);
1723
1724     // handle -ve width and/or height
1725     if (ww < 0)
1726     {
1727         ww = -ww;
1728         xx = xx - ww;
1729     }
1730     if (hh < 0)
1731     {
1732         hh = -hh;
1733         yy = yy - hh;
1734     }
1735
1736     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1737
1738     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1739     m_graphicContext->PushState() ;
1740     m_graphicContext->Translate( xx + ww / 2, yy + hh / 2 ) ;
1741     m_graphicContext->Scale( 1 * ww / 2 , -1 * hh / 2 ) ;
1742     if ( fill )
1743         path->MoveToPoint( 0, 0 ) ;
1744     path->AddArc( 0, 0, 1 , DegToRad(sa) , DegToRad(ea), false ) ;
1745     if ( fill )
1746         path->AddLineToPoint( 0, 0 ) ;
1747     m_graphicContext->DrawPath( path ) ;
1748     m_graphicContext->PopState() ;
1749     delete path ;
1750 }
1751
1752 void wxDC::DoDrawPoint( wxCoord x, wxCoord y )
1753 {
1754     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPoint - invalid DC") );
1755
1756     DoDrawLine( x , y , x + 1 , y + 1 ) ;
1757 }
1758
1759 void wxDC::DoDrawLines(int n, wxPoint points[],
1760                         wxCoord xoffset, wxCoord yoffset)
1761 {
1762     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLines - invalid DC") );
1763
1764 #if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1765     if ( m_logicalFunction != wxCOPY )
1766         return ;
1767 #endif
1768
1769     wxCoord x1, x2 , y1 , y2 ;
1770     x1 = XLOG2DEVMAC(points[0].x + xoffset);
1771     y1 = YLOG2DEVMAC(points[0].y + yoffset);
1772     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1773     path->MoveToPoint( x1 , y1 ) ;
1774     for (int i = 1; i < n; i++)
1775     {
1776         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1777         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1778
1779         path->AddLineToPoint( x2 , y2 ) ;
1780     }
1781
1782     m_graphicContext->StrokePath( path ) ;
1783     delete path ;
1784 }
1785
1786 #if wxUSE_SPLINES
1787 void wxDC::DoDrawSpline(wxList *points)
1788 {
1789     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawSpline - invalid DC") );
1790
1791     if ( m_logicalFunction != wxCOPY )
1792         return ;
1793
1794     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1795
1796     wxList::compatibility_iterator node = points->GetFirst();
1797     if (node == wxList::compatibility_iterator())
1798         // empty list
1799         return;
1800
1801     wxPoint *p = (wxPoint *)node->GetData();
1802
1803     wxCoord x1 = p->x;
1804     wxCoord y1 = p->y;
1805
1806     node = node->GetNext();
1807     p = (wxPoint *)node->GetData();
1808
1809     wxCoord x2 = p->x;
1810     wxCoord y2 = p->y;
1811     wxCoord cx1 = ( x1 + x2 ) / 2;
1812     wxCoord cy1 = ( y1 + y2 ) / 2;
1813
1814     path->MoveToPoint( XLOG2DEVMAC( x1 ) , YLOG2DEVMAC( y1 ) ) ;
1815     path->AddLineToPoint( XLOG2DEVMAC( cx1 ) , YLOG2DEVMAC( cy1 ) ) ;
1816
1817 #if !wxUSE_STL
1818     while ((node = node->GetNext()) != NULL)
1819 #else
1820     while ((node = node->GetNext()))
1821 #endif // !wxUSE_STL
1822     {
1823         p = (wxPoint *)node->GetData();
1824         x1 = x2;
1825         y1 = y2;
1826         x2 = p->x;
1827         y2 = p->y;
1828         wxCoord cx4 = (x1 + x2) / 2;
1829         wxCoord cy4 = (y1 + y2) / 2;
1830
1831         path->AddQuadCurveToPoint(
1832             XLOG2DEVMAC( x1 ) , YLOG2DEVMAC( y1 ) ,
1833             XLOG2DEVMAC( cx4 ) , YLOG2DEVMAC( cy4 ) ) ;
1834
1835         cx1 = cx4;
1836         cy1 = cy4;
1837     }
1838
1839     path->AddLineToPoint( XLOG2DEVMAC( x2 ) , YLOG2DEVMAC( y2 ) ) ;
1840
1841     m_graphicContext->StrokePath( path ) ;
1842     delete path ;
1843 }
1844 #endif
1845
1846 void wxDC::DoDrawPolygon( int n, wxPoint points[],
1847                           wxCoord xoffset, wxCoord yoffset,
1848                           int fillStyle )
1849 {
1850     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPolygon - invalid DC") );
1851
1852     if ( n <= 0 || (m_brush.GetStyle() == wxTRANSPARENT && m_pen.GetStyle() == wxTRANSPARENT ) )
1853         return ;
1854     if ( m_logicalFunction != wxCOPY )
1855         return ;
1856
1857     wxCoord x1, x2 , y1 , y2 ;
1858     x2 = x1 = XLOG2DEVMAC(points[0].x + xoffset);
1859     y2 = y1 = YLOG2DEVMAC(points[0].y + yoffset);
1860
1861     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1862     path->MoveToPoint( x1 , y1 ) ;
1863     for (int i = 1; i < n; i++)
1864     {
1865         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1866         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1867
1868         path->AddLineToPoint( x2 , y2 ) ;
1869     }
1870
1871     if ( x1 != x2 || y1 != y2 )
1872         path->AddLineToPoint( x1, y1 ) ;
1873
1874     path->CloseSubpath() ;
1875     m_graphicContext->DrawPath( path , fillStyle ) ;
1876
1877     delete path ;
1878 }
1879
1880 void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1881 {
1882     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRectangle - invalid DC") );
1883
1884     if ( m_logicalFunction != wxCOPY )
1885         return ;
1886
1887     wxCoord xx = XLOG2DEVMAC(x);
1888     wxCoord yy = YLOG2DEVMAC(y);
1889     wxCoord ww = m_signX * XLOG2DEVREL(width);
1890     wxCoord hh = m_signY * YLOG2DEVREL(height);
1891
1892     // CMB: draw nothing if transformed w or h is 0
1893     if (ww == 0 || hh == 0)
1894         return;
1895
1896     // CMB: handle -ve width and/or height
1897     if (ww < 0)
1898     {
1899         ww = -ww;
1900         xx = xx - ww;
1901     }
1902     if (hh < 0)
1903     {
1904         hh = -hh;
1905         yy = yy - hh;
1906     }
1907
1908     int penwidth = m_pen.GetWidth();
1909     if ( penwidth == 0 )
1910         penwidth = 1 ;
1911     if ( m_pen.GetStyle() == wxTRANSPARENT )
1912         penwidth = 0 ;
1913
1914     bool offset = ( penwidth % 2 ) == 1 ;
1915
1916     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1917     // if we are offsetting the entire rectangle is moved 0.5, so the border line gets off by 1
1918     if ( offset )
1919         path->AddRectangle( xx , yy , ww-1 , hh-1 ) ;
1920     else
1921         path->AddRectangle( xx , yy , ww , hh ) ;
1922
1923     m_graphicContext->DrawPath( path ) ;
1924     delete path ;
1925 }
1926
1927 void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y,
1928                                    wxCoord width, wxCoord height,
1929                                    double radius)
1930 {
1931     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRoundedRectangle - invalid DC") );
1932
1933     if ( m_logicalFunction != wxCOPY )
1934         return ;
1935
1936     if (radius < 0.0)
1937         radius = - radius * ((width < height) ? width : height);
1938     wxCoord xx = XLOG2DEVMAC(x);
1939     wxCoord yy = YLOG2DEVMAC(y);
1940     wxCoord ww = m_signX * XLOG2DEVREL(width);
1941     wxCoord hh = m_signY * YLOG2DEVREL(height);
1942
1943     // CMB: draw nothing if transformed w or h is 0
1944     if (ww == 0 || hh == 0)
1945         return;
1946
1947     // CMB: handle -ve width and/or height
1948     if (ww < 0)
1949     {
1950         ww = -ww;
1951         xx = xx - ww;
1952     }
1953     if (hh < 0)
1954     {
1955         hh = -hh;
1956         yy = yy - hh;
1957     }
1958
1959     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1960     if ( radius == 0)
1961     {
1962         path->AddRectangle( xx , yy , ww , hh ) ;
1963         m_graphicContext->DrawPath( path ) ;
1964     }
1965     else
1966     {
1967         path->MoveToPoint( xx + ww, yy + hh / 2);
1968         path->AddArcToPoint(xx + ww, yy + hh, xx + ww / 2,yy +  hh, radius);
1969         path->AddArcToPoint(xx , yy + hh, xx , yy + hh / 2, radius);
1970         path->AddArcToPoint(xx , yy , xx + ww / 2, yy , radius);
1971         path->AddArcToPoint(xx + ww, yy , xx + ww, yy + hh / 2, radius);
1972         path->CloseSubpath();
1973         m_graphicContext->DrawPath( path ) ;
1974     }
1975     delete path ;
1976 }
1977
1978 void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1979 {
1980     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipse - invalid DC") );
1981
1982     if ( m_logicalFunction != wxCOPY )
1983         return ;
1984
1985     wxCoord xx = XLOG2DEVMAC(x);
1986     wxCoord yy = YLOG2DEVMAC(y);
1987     wxCoord ww = m_signX * XLOG2DEVREL(width);
1988     wxCoord hh = m_signY * YLOG2DEVREL(height);
1989
1990     // CMB: draw nothing if transformed w or h is 0
1991     if (ww == 0 || hh == 0)
1992         return;
1993
1994     // CMB: handle -ve width and/or height
1995     if (ww < 0)
1996     {
1997         ww = -ww;
1998         xx = xx - ww;
1999     }
2000     if (hh < 0)
2001     {
2002         hh = -hh;
2003         yy = yy - hh;
2004     }
2005
2006     wxGraphicPath* path = m_graphicContext->CreatePath() ;
2007     m_graphicContext->PushState() ;
2008     m_graphicContext->Translate(xx + ww / 2, yy + hh / 2);
2009     m_graphicContext->Scale(ww / 2 , hh / 2);
2010     path->AddArc( 0, 0, 1, 0 , 2 * M_PI , false ) ;
2011     m_graphicContext->DrawPath( path ) ;
2012     m_graphicContext->PopState() ;
2013     delete path ;
2014 }
2015
2016 bool wxDC::CanDrawBitmap() const
2017 {
2018     return true ;
2019 }
2020
2021 bool wxDC::DoBlit(
2022     wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
2023     wxDC *source, wxCoord xsrc, wxCoord ysrc, int logical_func , bool useMask,
2024     wxCoord xsrcMask, wxCoord ysrcMask )
2025 {
2026     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoBlit - invalid DC") );
2027     wxCHECK_MSG( source->Ok(), false, wxT("wxDC(cg)::DoBlit - invalid source DC") );
2028
2029     if ( logical_func == wxNO_OP )
2030         return true ;
2031
2032     if (xsrcMask == -1 && ysrcMask == -1)
2033     {
2034         xsrcMask = xsrc;
2035         ysrcMask = ysrc;
2036     }
2037
2038     wxCoord yysrc = source->YLOG2DEVMAC(ysrc) ;
2039     wxCoord xxsrc = source->XLOG2DEVMAC(xsrc) ;
2040     wxCoord wwsrc = source->XLOG2DEVREL(width) ;
2041     wxCoord hhsrc = source->YLOG2DEVREL(height) ;
2042
2043     wxCoord yydest = YLOG2DEVMAC(ydest) ;
2044     wxCoord xxdest = XLOG2DEVMAC(xdest) ;
2045     wxCoord wwdest = XLOG2DEVREL(width) ;
2046     wxCoord hhdest = YLOG2DEVREL(height) ;
2047
2048     wxMemoryDC* memdc = dynamic_cast<wxMemoryDC*>(source) ;
2049     if ( memdc && logical_func == wxCOPY )
2050     {
2051         wxBitmap blit = memdc->GetSelectedObject() ;
2052
2053         wxASSERT_MSG( blit.Ok() , wxT("Invalid bitmap for blitting") ) ;
2054
2055         wxCoord bmpwidth = blit.GetWidth();
2056         wxCoord bmpheight = blit.GetHeight();
2057
2058         if ( xxsrc != 0 || yysrc != 0 || bmpwidth != wwsrc || bmpheight != hhsrc )
2059         {
2060             wwsrc = wxMin( wwsrc , bmpwidth - xxsrc ) ;
2061             hhsrc = wxMin( hhsrc , bmpheight - yysrc ) ;
2062             if ( wwsrc > 0 && hhsrc > 0 )
2063             {
2064                 if ( xxsrc >= 0 && yysrc >= 0 )
2065                 {
2066                     wxRect subrect( xxsrc, yysrc, wwsrc , hhsrc ) ;
2067                     // TODO we perhaps could add a DrawSubBitmap call to dc for performance reasons
2068                     blit = blit.GetSubBitmap( subrect ) ;
2069                 }
2070                 else
2071                 {
2072                     // in this case we'd probably have to adjust the different coordinates, but
2073                     // we have to find out proper contract first
2074                     blit = wxNullBitmap ;
2075                 }
2076             }
2077             else
2078             {
2079                 blit = wxNullBitmap ;
2080             }
2081         }
2082
2083         if ( blit.Ok() )
2084         {
2085             m_graphicContext->DrawBitmap( blit, xxdest , yydest , wwdest , hhdest ) ;
2086         }
2087     }
2088     else
2089     {
2090         wxFAIL_MSG( wxT("Blitting is only supported from bitmap contexts, and only with wxCOPY logical operation.") ) ;
2091         return false ;
2092     }
2093
2094     return true;
2095 }
2096
2097 void wxDC::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y,
2098                               double angle)
2099 {
2100     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRotatedText - invalid DC") );
2101 //    wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoDrawRotatedText - no valid font set") );
2102
2103     if ( str.length() == 0 )
2104         return ;
2105     if ( m_logicalFunction != wxCOPY )
2106         return ;
2107
2108     int drawX = XLOG2DEVMAC(x) ;
2109     int drawY = YLOG2DEVMAC(y) ;
2110
2111     m_graphicContext->DrawText( str, drawX ,drawY , angle ) ;
2112 }
2113
2114 void wxDC::DoDrawText(const wxString& strtext, wxCoord x, wxCoord y)
2115 {
2116     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawText - invalid DC") );
2117
2118     DoDrawRotatedText( strtext , x , y , 0.0 ) ;
2119 }
2120
2121 bool wxDC::CanGetTextExtent() const
2122 {
2123     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::CanGetTextExtent - invalid DC") );
2124
2125     return true ;
2126 }
2127
2128 void wxDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
2129                             wxCoord *descent, wxCoord *externalLeading ,
2130                             wxFont *theFont ) const
2131 {
2132     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoGetTextExtent - invalid DC") );
2133
2134     if ( theFont )
2135     {
2136         m_graphicContext->SetFont( *theFont ) ;
2137     }
2138
2139     wxCoord h , d , e , w ;
2140
2141     m_graphicContext->GetTextExtent( str, &w, &h, &d, &e ) ;
2142
2143     if ( height )
2144         *height = YDEV2LOGREL( h ) ;
2145     if ( descent )
2146         *descent =YDEV2LOGREL( d);
2147     if ( externalLeading )
2148         *externalLeading = YDEV2LOGREL( e);
2149     if ( width )
2150         *width = XDEV2LOGREL( w ) ;
2151
2152     if ( theFont )
2153     {
2154         m_graphicContext->SetFont( m_font ) ;
2155     }
2156 }
2157
2158 bool wxDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
2159 {
2160     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPartialTextExtents - invalid DC") );
2161
2162     m_graphicContext->GetPartialTextExtents( text, widths ) ;
2163     for ( size_t i = 0 ; i < widths.GetCount() ; ++i )
2164         widths[i] = XDEV2LOGREL( widths[i] );
2165
2166     return true;
2167 }
2168
2169 wxCoord wxDC::GetCharWidth(void) const
2170 {
2171     wxCoord width ;
2172     DoGetTextExtent( wxT("g") , &width , NULL , NULL , NULL , NULL ) ;
2173
2174     return width ;
2175 }
2176
2177 wxCoord wxDC::GetCharHeight(void) const
2178 {
2179     wxCoord height ;
2180     DoGetTextExtent( wxT("g") , NULL , &height , NULL , NULL , NULL ) ;
2181
2182     return height ;
2183 }
2184
2185 void wxDC::Clear(void)
2186 {
2187     wxCHECK_RET( Ok(), wxT("wxDC(cg)::Clear - invalid DC") );
2188
2189     if (m_backgroundBrush.Ok() && m_backgroundBrush.GetStyle() != wxTRANSPARENT)
2190     {
2191         HIRect rect = CGRectMake( -10000 , -10000 , 20000 , 20000 ) ;
2192         CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
2193         switch ( m_backgroundBrush.MacGetBrushKind() )
2194         {
2195             case kwxMacBrushTheme :
2196                 {
2197 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
2198                     if ( HIThemeSetFill != 0 )
2199                     {
2200                         HIThemeSetFill( m_backgroundBrush.MacGetTheme(), NULL, cg, kHIThemeOrientationNormal );
2201                         CGContextFillRect(cg, rect);
2202
2203                     }
2204                     else
2205 #endif
2206                     {
2207                         RGBColor color;
2208                         GetThemeBrushAsColor( m_backgroundBrush.MacGetTheme(), 32, true, &color );
2209                         CGContextSetRGBFillColor( cg, (CGFloat) color.red / 65536,
2210                             (CGFloat) color.green / 65536, (CGFloat) color.blue / 65536, 1 );
2211                             CGContextFillRect( cg, rect );
2212                     }
2213
2214                     // reset to normal value
2215                     RGBColor col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2216                     CGContextSetRGBFillColor( cg, col.red / 65536.0, col.green / 65536.0, col.blue / 65536.0, 1.0 );
2217                 }
2218                 break ;
2219
2220             case kwxMacBrushThemeBackground :
2221                 {
2222                     wxFAIL_MSG( wxT("There shouldn't be theme backgrounds under Quartz") ) ;
2223
2224 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3
2225                     if ( UMAGetSystemVersion() >= 0x1030 )
2226                     {
2227                         HIThemeBackgroundDrawInfo drawInfo ;
2228                         drawInfo.version = 0 ;
2229                         drawInfo.state = kThemeStateActive ;
2230                         drawInfo.kind = m_backgroundBrush.MacGetThemeBackground( NULL ) ;
2231                         if ( drawInfo.kind == kThemeBackgroundMetal )
2232                         {
2233                             HIThemeDrawBackground( &rect, &drawInfo, cg, kHIThemeOrientationNormal ) ;
2234                             HIThemeApplyBackground( &rect, &drawInfo, cg, kHIThemeOrientationNormal ) ;
2235                         }
2236                     }
2237 #endif
2238                 }
2239                 break ;
2240
2241             case kwxMacBrushColour :
2242                 {
2243                     // FIXME: doesn't correctly render stippled brushes !!
2244                     // FIXME: should this be replaced by ::SetBrush() ??
2245
2246                     RGBColor col = MAC_WXCOLORREF( m_backgroundBrush.GetColour().GetPixel()) ;
2247                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2248                     CGContextFillRect(cg, rect);
2249
2250                     // reset to normal value
2251                     col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2252                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2253                 }
2254                 break ;
2255
2256             default :
2257                 wxFAIL_MSG( wxT("unknown brush kind") ) ;
2258                 break ;
2259         }
2260     }
2261 }
2262
2263 #pragma mark -
2264
2265 // ---------------------------------------------------------------------------
2266 // coordinates transformations
2267 // ---------------------------------------------------------------------------
2268
2269 wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
2270 {
2271     return ((wxDC *)this)->XDEV2LOG(x);
2272 }
2273
2274 wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
2275 {
2276     return ((wxDC *)this)->YDEV2LOG(y);
2277 }
2278
2279 wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
2280 {
2281     return ((wxDC *)this)->XDEV2LOGREL(x);
2282 }
2283
2284 wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
2285 {
2286     return ((wxDC *)this)->YDEV2LOGREL(y);
2287 }
2288
2289 wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
2290 {
2291     return ((wxDC *)this)->XLOG2DEV(x);
2292 }
2293
2294 wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
2295 {
2296     return ((wxDC *)this)->YLOG2DEV(y);
2297 }
2298
2299 wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
2300 {
2301     return ((wxDC *)this)->XLOG2DEVREL(x);
2302 }
2303
2304 wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
2305 {
2306     return ((wxDC *)this)->YLOG2DEVREL(y);
2307 }
2308
2309 #endif // wxMAC_USE_CORE_GRAPHICS