src/osx/carbon/graphics.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/carbon/graphics.cpp
   3 // Purpose:     wxDC class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     01/02/97
   7 // copyright:   (c) Stefan Csomor
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #include "wx/wxprec.h"
  12
  13 #include "wx/graphics.h"
  14 #include "wx/private/graphics.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/dcclient.h"
  18     #include "wx/dcmemory.h"
  19     #include "wx/dcprint.h"
  20     #include "wx/log.h"
  21     #include "wx/region.h"
  22     #include "wx/image.h"
  23     #include "wx/icon.h"
  24 #endif
  25
  26
  27 #ifdef __MSL__
  28     #if __MSL__ >= 0x6000
  29         #include "math.h"
  30         // in case our functions were defined outside std, we make it known all the same
  31         namespace std { }
  32         using namespace std;
  33     #endif
  34 #endif
  35
  36 #ifdef __WXMAC__
  37     #include "wx/osx/private.h"
  38     #include "wx/osx/dcprint.h"
  39     #include "wx/osx/dcclient.h"
  40     #include "wx/osx/dcmemory.h"
  41     #include "wx/osx/private.h"
  42 #else
  43     #include "CoreServices/CoreServices.h"
  44     #include "ApplicationServices/ApplicationServices.h"
  45     #include "wx/osx/core/cfstring.h"
  46     #include "wx/cocoa/dcclient.h"
  47 #endif
  48
  49 #ifdef __WXCOCOA__
  50
  51 CGColorSpaceRef wxMacGetGenericRGBColorSpace()
  52 {
  53     static wxCFRef<CGColorSpaceRef> genericRGBColorSpace;
  54
  55     if (genericRGBColorSpace == NULL)
  56     {
  57         genericRGBColorSpace.reset( CGColorSpaceCreateWithName( kCGColorSpaceGenericRGB ) );
  58     }
  59
  60     return genericRGBColorSpace;
  61 }
  62
  63 int UMAGetSystemVersion()
  64 {
  65     return 0x1050;
  66 }
  67
  68
  69 #define wxOSX_USE_CORE_TEXT 1
  70
  71 #endif
  72
  73 #if wxOSX_USE_COCOA_OR_IPHONE
  74 extern CGContextRef wxOSXGetContextFromCurrentContext() ;
  75 #if wxOSX_USE_COCOA
  76 extern bool wxOSXLockFocus( WXWidget view) ;
  77 extern void wxOSXUnlockFocus( WXWidget view) ;
  78 #endif
  79 #endif
  80
  81 #if 1 // MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
  82
  83 // TODO test whether this private API also works under 10.3
  84
  85 // copying values from NSCompositingModes (see also webkit and cairo sources)
  86
  87 typedef enum CGCompositeOperation {
  88    kCGCompositeOperationClear           = 0,
  89    kCGCompositeOperationCopy            = 1,
  90    kCGCompositeOperationSourceOver      = 2,
  91    kCGCompositeOperationSourceIn        = 3,
  92    kCGCompositeOperationSourceOut       = 4,
  93    kCGCompositeOperationSourceAtop      = 5,
  94    kCGCompositeOperationDestinationOver = 6,
  95    kCGCompositeOperationDestinationIn   = 7,
  96    kCGCompositeOperationDestinationOut  = 8,
  97    kCGCompositeOperationDestinationAtop = 9,
  98    kCGCompositeOperationXOR             = 10,
  99    kCGCompositeOperationPlusDarker      = 11,
 100 // NS only, unsupported by CG : Highlight
 101    kCGCompositeOperationPlusLighter     = 12
 102 } CGCompositeOperation ;
 103
 104 extern "C"
 105 {
 106    CG_EXTERN void CGContextSetCompositeOperation (CGContextRef context, int operation);
 107 } ;
 108
 109 #endif
 110
 111 //-----------------------------------------------------------------------------
 112 // constants
 113 //-----------------------------------------------------------------------------
 114
 115 #ifndef M_PI
 116 const double M_PI = 3.14159265358979;
 117 #endif
 118
 119 static const double RAD2DEG = 180.0 / M_PI;
 120
 121 //
 122 // Pen, Brushes and Fonts
 123 //
 124
 125 #pragma mark -
 126 #pragma mark wxMacCoreGraphicsPattern, ImagePattern, HatchPattern classes
 127
 128 OSStatus wxMacDrawCGImage(
 129                   CGContextRef    inContext,
 130                   const CGRect *  inBounds,
 131                   CGImageRef      inImage)
 132 {
 133 #if wxOSX_USE_CARBON
 134     return HIViewDrawCGImage( inContext, inBounds, inImage );
 135 #else
 136     CGContextSaveGState(inContext);
 137     CGContextTranslateCTM(inContext, inBounds->origin.x, inBounds->origin.y + inBounds->size.height);
 138     CGRect r = *inBounds;
 139     r.origin.x = r.origin.y = 0;
 140     CGContextScaleCTM(inContext, 1, -1);
 141     CGContextDrawImage(inContext, r, inImage );
 142     CGContextRestoreGState(inContext);
 143     return noErr;
 144 #endif
 145 }
 146
 147 CGColorRef wxMacCreateCGColor( const wxColour& col )
 148 {
 149     CGColorRef retval = col.CreateCGColor();
 150
 151     wxASSERT(retval != NULL);
 152     return retval;
 153 }
 154
 155 #if wxOSX_USE_CORE_TEXT
 156
 157 CTFontRef wxMacCreateCTFont( const wxFont& font )
 158 {
 159 #ifdef __WXMAC__
 160     return wxCFRetain((CTFontRef) font.OSXGetCTFont());
 161 #else
 162     return CTFontCreateWithName( wxCFStringRef( font.GetFaceName(), wxLocale::GetSystemEncoding() ) , font.GetPointSize() , NULL );
 163 #endif
 164 }
 165
 166 #endif
 167
 168 // CGPattern wrapper class: always allocate on heap, never call destructor
 169
 170 class wxMacCoreGraphicsPattern
 171 {
 172 public :
 173     wxMacCoreGraphicsPattern() {}
 174
 175     // is guaranteed to be called only with a non-Null CGContextRef
 176     virtual void Render( CGContextRef ctxRef ) = 0;
 177
 178     operator CGPatternRef() const { return m_patternRef; }
 179
 180 protected :
 181     virtual ~wxMacCoreGraphicsPattern()
 182     {
 183         // as this is called only when the m_patternRef is been released;
 184         // don't release it again
 185     }
 186
 187     static void _Render( void *info, CGContextRef ctxRef )
 188     {
 189         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 190         if ( self && ctxRef )
 191             self->Render( ctxRef );
 192     }
 193
 194     static void _Dispose( void *info )
 195     {
 196         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 197         delete self;
 198     }
 199
 200     CGPatternRef m_patternRef;
 201
 202     static const CGPatternCallbacks ms_Callbacks;
 203 };
 204
 205 const CGPatternCallbacks wxMacCoreGraphicsPattern::ms_Callbacks = { 0, &wxMacCoreGraphicsPattern::_Render, &wxMacCoreGraphicsPattern::_Dispose };
 206
 207 class ImagePattern : public wxMacCoreGraphicsPattern
 208 {
 209 public :
 210     ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
 211     {
 212         wxASSERT( bmp && bmp->IsOk() );
 213 #ifdef __WXMAC__
 214         Init( (CGImageRef) bmp->CreateCGImage() , transform );
 215 #endif
 216     }
 217
 218     // ImagePattern takes ownership of CGImageRef passed in
 219     ImagePattern( CGImageRef image , const CGAffineTransform& transform )
 220     {
 221         if ( image )
 222             CFRetain( image );
 223
 224         Init( image , transform );
 225     }
 226
 227     virtual void Render( CGContextRef ctxRef )
 228     {
 229         if (m_image != NULL)
 230             wxMacDrawCGImage( ctxRef, &m_imageBounds, m_image );
 231     }
 232
 233 protected :
 234     void Init( CGImageRef image, const CGAffineTransform& transform )
 235     {
 236         m_image = image;
 237         if ( m_image )
 238         {
 239             m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) );
 240             m_patternRef = CGPatternCreate(
 241                 this , m_imageBounds, transform ,
 242                 m_imageBounds.size.width, m_imageBounds.size.height,
 243                 kCGPatternTilingNoDistortion, true , &wxMacCoreGraphicsPattern::ms_Callbacks );
 244         }
 245     }
 246
 247     virtual ~ImagePattern()
 248     {
 249         if ( m_image )
 250             CGImageRelease( m_image );
 251     }
 252
 253     CGImageRef m_image;
 254     CGRect m_imageBounds;
 255 };
 256
 257 class HatchPattern : public wxMacCoreGraphicsPattern
 258 {
 259 public :
 260     HatchPattern( int hatchstyle, const CGAffineTransform& transform )
 261     {
 262         m_hatch = hatchstyle;
 263         m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat) 8.0 , (CGFloat) 8.0 );
 264         m_patternRef = CGPatternCreate(
 265             this , m_imageBounds, transform ,
 266             m_imageBounds.size.width, m_imageBounds.size.height,
 267             kCGPatternTilingNoDistortion, false , &wxMacCoreGraphicsPattern::ms_Callbacks );
 268     }
 269
 270     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 271     {
 272         CGContextStrokeLineSegments( ctxRef , pts , count );
 273     }
 274
 275     virtual void Render( CGContextRef ctxRef )
 276     {
 277         switch ( m_hatch )
 278         {
 279             case wxBDIAGONAL_HATCH :
 280                 {
 281                     CGPoint pts[] =
 282                     {
 283                     { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 284                     };
 285                     StrokeLineSegments( ctxRef , pts , 2 );
 286                 }
 287                 break;
 288
 289             case wxCROSSDIAG_HATCH :
 290                 {
 291                     CGPoint pts[] =
 292                     {
 293                         { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 } ,
 294                         { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 295                     };
 296                     StrokeLineSegments( ctxRef , pts , 4 );
 297                 }
 298                 break;
 299
 300             case wxFDIAGONAL_HATCH :
 301                 {
 302                     CGPoint pts[] =
 303                     {
 304                     { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 }
 305                     };
 306                     StrokeLineSegments( ctxRef , pts , 2 );
 307                 }
 308                 break;
 309
 310             case wxCROSS_HATCH :
 311                 {
 312                     CGPoint pts[] =
 313                     {
 314                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 315                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 316                     };
 317                     StrokeLineSegments( ctxRef , pts , 4 );
 318                 }
 319                 break;
 320
 321             case wxHORIZONTAL_HATCH :
 322                 {
 323                     CGPoint pts[] =
 324                     {
 325                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 326                     };
 327                     StrokeLineSegments( ctxRef , pts , 2 );
 328                 }
 329                 break;
 330
 331             case wxVERTICAL_HATCH :
 332                 {
 333                     CGPoint pts[] =
 334                     {
 335                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 336                     };
 337                     StrokeLineSegments( ctxRef , pts , 2 );
 338                 }
 339                 break;
 340
 341             default:
 342                 break;
 343         }
 344     }
 345
 346 protected :
 347     virtual ~HatchPattern() {}
 348
 349     CGRect      m_imageBounds;
 350     int         m_hatch;
 351 };
 352
 353 class wxMacCoreGraphicsPenData : public wxGraphicsObjectRefData
 354 {
 355 public:
 356     wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
 357     ~wxMacCoreGraphicsPenData();
 358
 359     void Init();
 360     virtual void Apply( wxGraphicsContext* context );
 361     virtual wxDouble GetWidth() { return m_width; }
 362
 363 protected :
 364     CGLineCap m_cap;
 365     wxCFRef<CGColorRef> m_color;
 366     wxCFRef<CGColorSpaceRef> m_colorSpace;
 367
 368     CGLineJoin m_join;
 369     CGFloat m_width;
 370
 371     int m_count;
 372     const CGFloat *m_lengths;
 373     CGFloat *m_userLengths;
 374
 375
 376     bool m_isPattern;
 377     wxCFRef<CGPatternRef> m_pattern;
 378     CGFloat* m_patternColorComponents;
 379 };
 380
 381 wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) :
 382     wxGraphicsObjectRefData( renderer )
 383 {
 384     Init();
 385
 386     m_color.reset( wxMacCreateCGColor( pen.GetColour() ) ) ;
 387
 388     // TODO: * m_dc->m_scaleX
 389     m_width = pen.GetWidth();
 390     if (m_width <= 0.0)
 391         m_width = (CGFloat) 0.1;
 392
 393     switch ( pen.GetCap() )
 394     {
 395         case wxCAP_ROUND :
 396             m_cap = kCGLineCapRound;
 397             break;
 398
 399         case wxCAP_PROJECTING :
 400             m_cap = kCGLineCapSquare;
 401             break;
 402
 403         case wxCAP_BUTT :
 404             m_cap = kCGLineCapButt;
 405             break;
 406
 407         default :
 408             m_cap = kCGLineCapButt;
 409             break;
 410     }
 411
 412     switch ( pen.GetJoin() )
 413     {
 414         case wxJOIN_BEVEL :
 415             m_join = kCGLineJoinBevel;
 416             break;
 417
 418         case wxJOIN_MITER :
 419             m_join = kCGLineJoinMiter;
 420             break;
 421
 422         case wxJOIN_ROUND :
 423             m_join = kCGLineJoinRound;
 424             break;
 425
 426         default :
 427             m_join = kCGLineJoinMiter;
 428             break;
 429     }
 430
 431     const CGFloat dashUnit = m_width < 1.0 ? (CGFloat) 1.0 : m_width;
 432
 433     const CGFloat dotted[] = { (CGFloat) dashUnit , (CGFloat) (dashUnit + 2.0) };
 434     static const CGFloat short_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 };
 435     static const CGFloat dashed[] = { (CGFloat) 19.0 , (CGFloat) 9.0 };
 436     static const CGFloat dotted_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 , (CGFloat) 3.0 , (CGFloat) 3.0 };
 437
 438     switch ( pen.GetStyle() )
 439     {
 440         case wxPENSTYLE_SOLID:
 441             break;
 442
 443         case wxPENSTYLE_DOT:
 444             m_count = WXSIZEOF(dotted);
 445             m_userLengths = new CGFloat[ m_count ] ;
 446             memcpy( m_userLengths, dotted, sizeof(dotted) );
 447             m_lengths = m_userLengths;
 448             break;
 449
 450         case wxPENSTYLE_LONG_DASH:
 451             m_count = WXSIZEOF(dashed);
 452             m_lengths = dashed;
 453             break;
 454
 455         case wxPENSTYLE_SHORT_DASH:
 456             m_count = WXSIZEOF(short_dashed);
 457             m_lengths = short_dashed;
 458             break;
 459
 460         case wxPENSTYLE_DOT_DASH:
 461             m_count = WXSIZEOF(dotted_dashed);
 462             m_lengths = dotted_dashed;
 463             break;
 464
 465         case wxPENSTYLE_USER_DASH:
 466             wxDash *dashes;
 467             m_count = pen.GetDashes( &dashes );
 468             if ((dashes != NULL) && (m_count > 0))
 469             {
 470                 m_userLengths = new CGFloat[m_count];
 471                 for ( int i = 0; i < m_count; ++i )
 472                 {
 473                     m_userLengths[i] = dashes[i] * dashUnit;
 474
 475                     if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
 476                         m_userLengths[i] = (CGFloat) (dashUnit + 2.0);
 477                     else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
 478                         m_userLengths[i] = dashUnit;
 479                 }
 480             }
 481             m_lengths = m_userLengths;
 482             break;
 483
 484         case wxPENSTYLE_STIPPLE:
 485             {
 486                 wxBitmap* bmp = pen.GetStipple();
 487                 if ( bmp && bmp->IsOk() )
 488                 {
 489                     m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 490                     m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 491                     m_patternColorComponents = new CGFloat[1] ;
 492                     m_patternColorComponents[0] = (CGFloat) 1.0;
 493                     m_isPattern = true;
 494                 }
 495             }
 496             break;
 497
 498         default :
 499             {
 500                 m_isPattern = true;
 501                 m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 502                 m_pattern.reset( (CGPatternRef) *( new HatchPattern( pen.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 503                 m_patternColorComponents = new CGFloat[4] ;
 504                 m_patternColorComponents[0] = (CGFloat) (pen.GetColour().Red() / 255.0);
 505                 m_patternColorComponents[1] = (CGFloat) (pen.GetColour().Green() / 255.0);
 506                 m_patternColorComponents[2] = (CGFloat) (pen.GetColour().Blue() / 255.0);
 507                 m_patternColorComponents[3] =  (CGFloat) (pen.GetColour().Alpha() / 255.0);
 508             }
 509             break;
 510     }
 511     if ((m_lengths != NULL) && (m_count > 0))
 512     {
 513         // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 514         m_cap = kCGLineCapButt;
 515     }
 516 }
 517
 518 wxMacCoreGraphicsPenData::~wxMacCoreGraphicsPenData()
 519 {
 520     delete[] m_userLengths;
 521     delete[] m_patternColorComponents;
 522 }
 523
 524 void wxMacCoreGraphicsPenData::Init()
 525 {
 526     m_lengths = NULL;
 527     m_userLengths = NULL;
 528     m_width = 0;
 529     m_count = 0;
 530     m_patternColorComponents = NULL;
 531     m_isPattern = false;
 532 }
 533
 534 void wxMacCoreGraphicsPenData::Apply( wxGraphicsContext* context )
 535 {
 536     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 537     CGContextSetLineWidth( cg , m_width );
 538     CGContextSetLineJoin( cg , m_join );
 539
 540     CGContextSetLineDash( cg , 0 , m_lengths , m_count );
 541     CGContextSetLineCap( cg , m_cap );
 542
 543     if ( m_isPattern )
 544     {
 545         CGAffineTransform matrix = CGContextGetCTM( cg );
 546         CGContextSetPatternPhase( cg, CGSizeMake(matrix.tx, matrix.ty) );
 547         CGContextSetStrokeColorSpace( cg , m_colorSpace );
 548         CGContextSetStrokePattern( cg, m_pattern , m_patternColorComponents );
 549     }
 550     else
 551     {
 552         CGContextSetStrokeColorWithColor( cg , m_color );
 553     }
 554 }
 555
 556 //
 557 // Brush
 558 //
 559
 560 // make sure we all use one class for all conversions from wx to native colour
 561
 562 class wxMacCoreGraphicsColour
 563 {
 564     public:
 565         wxMacCoreGraphicsColour();
 566         wxMacCoreGraphicsColour(const wxBrush &brush);
 567         ~wxMacCoreGraphicsColour();
 568
 569         void Apply( CGContextRef cgContext );
 570     protected:
 571         void Init();
 572         wxCFRef<CGColorRef> m_color;
 573         wxCFRef<CGColorSpaceRef> m_colorSpace;
 574
 575         bool m_isPattern;
 576         wxCFRef<CGPatternRef> m_pattern;
 577         CGFloat* m_patternColorComponents;
 578 } ;
 579
 580 wxMacCoreGraphicsColour::~wxMacCoreGraphicsColour()
 581 {
 582     delete[] m_patternColorComponents;
 583 }
 584
 585 void wxMacCoreGraphicsColour::Init()
 586 {
 587     m_isPattern = false;
 588     m_patternColorComponents = NULL;
 589 }
 590
 591 void wxMacCoreGraphicsColour::Apply( CGContextRef cgContext )
 592 {
 593     if ( m_isPattern )
 594     {
 595         CGAffineTransform matrix = CGContextGetCTM( cgContext );
 596         CGContextSetPatternPhase( cgContext, CGSizeMake(matrix.tx, matrix.ty) );
 597         CGContextSetFillColorSpace( cgContext , m_colorSpace );
 598         CGContextSetFillPattern( cgContext, m_pattern , m_patternColorComponents );
 599     }
 600     else
 601     {
 602         CGContextSetFillColorWithColor( cgContext, m_color );
 603     }
 604 }
 605
 606 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour()
 607 {
 608     Init();
 609 }
 610
 611 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour( const wxBrush &brush )
 612 {
 613     Init();
 614     if ( brush.GetStyle() == wxSOLID )
 615     {
 616         m_color.reset( wxMacCreateCGColor( brush.GetColour() ));
 617     }
 618     else if ( brush.IsHatch() )
 619     {
 620         m_isPattern = true;
 621         m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 622         m_pattern.reset( (CGPatternRef) *( new HatchPattern( brush.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 623
 624         m_patternColorComponents = new CGFloat[4] ;
 625         m_patternColorComponents[0] = (CGFloat) (brush.GetColour().Red() / 255.0);
 626         m_patternColorComponents[1] = (CGFloat) (brush.GetColour().Green() / 255.0);
 627         m_patternColorComponents[2] = (CGFloat) (brush.GetColour().Blue() / 255.0);
 628         m_patternColorComponents[3] = (CGFloat) (brush.GetColour().Alpha() / 255.0);
 629     }
 630     else
 631     {
 632         // now brush is a bitmap
 633         wxBitmap* bmp = brush.GetStipple();
 634         if ( bmp && bmp->IsOk() )
 635         {
 636             m_isPattern = true;
 637             m_patternColorComponents = new CGFloat[1] ;
 638             m_patternColorComponents[0] = (CGFloat) 1.0;
 639             m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 640             m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 641         }
 642     }
 643 }
 644
 645 class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
 646 {
 647 public:
 648     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
 649     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
 650     ~wxMacCoreGraphicsBrushData ();
 651
 652     virtual void Apply( wxGraphicsContext* context );
 653     void CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
 654                                    wxDouble x2, wxDouble y2,
 655                                    const wxGraphicsGradientStops& stops);
 656     void CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
 657                                    wxDouble xc, wxDouble yc, wxDouble radius,
 658                                    const wxGraphicsGradientStops& stops);
 659
 660     virtual bool IsShading() { return m_isShading; }
 661     CGShadingRef GetShading() { return m_shading; }
 662 protected:
 663     CGFunctionRef CreateGradientFunction(const wxGraphicsGradientStops& stops);
 664
 665     static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
 666     virtual void Init();
 667
 668     wxMacCoreGraphicsColour m_cgColor;
 669
 670     bool m_isShading;
 671     CGFunctionRef m_gradientFunction;
 672     CGShadingRef m_shading;
 673
 674     // information about a single gradient component
 675     struct GradientComponent
 676     {
 677         CGFloat pos;
 678         CGFloat red;
 679         CGFloat green;
 680         CGFloat blue;
 681         CGFloat alpha;
 682     };
 683
 684     // and information about all of them
 685     struct GradientComponents
 686     {
 687         GradientComponents()
 688         {
 689             count = 0;
 690             comps = NULL;
 691         }
 692
 693         void Init(unsigned count_)
 694         {
 695             count = count_;
 696             comps = new GradientComponent[count];
 697         }
 698
 699         ~GradientComponents()
 700         {
 701             delete [] comps;
 702         }
 703
 704         unsigned count;
 705         GradientComponent *comps;
 706     };
 707
 708     GradientComponents m_gradientComponents;
 709 };
 710
 711 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
 712 {
 713     Init();
 714 }
 715
 716 void
 717 wxMacCoreGraphicsBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
 718                                                       wxDouble x2, wxDouble y2,
 719                                                       const wxGraphicsGradientStops& stops)
 720 {
 721     m_gradientFunction = CreateGradientFunction(stops);
 722     m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) x1, (CGFloat) y1),
 723                                         CGPointMake((CGFloat) x2,(CGFloat) y2), m_gradientFunction, true, true ) ;
 724     m_isShading = true ;
 725 }
 726
 727 void
 728 wxMacCoreGraphicsBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
 729                                                       wxDouble xc, wxDouble yc,
 730                                                       wxDouble radius,
 731                                                       const wxGraphicsGradientStops& stops)
 732 {
 733     m_gradientFunction = CreateGradientFunction(stops);
 734     m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) xo,(CGFloat) yo), 0,
 735                                         CGPointMake((CGFloat) xc,(CGFloat) yc), (CGFloat) radius, m_gradientFunction, true, true ) ;
 736     m_isShading = true ;
 737 }
 738
 739 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer ),
 740     m_cgColor( brush )
 741 {
 742     Init();
 743
 744 }
 745
 746 wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
 747 {
 748     if ( m_shading )
 749         CGShadingRelease(m_shading);
 750
 751     if( m_gradientFunction )
 752         CGFunctionRelease(m_gradientFunction);
 753 }
 754
 755 void wxMacCoreGraphicsBrushData::Init()
 756 {
 757     m_gradientFunction = NULL;
 758     m_shading = NULL;
 759     m_isShading = false;
 760 }
 761
 762 void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
 763 {
 764     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 765
 766     if ( m_isShading )
 767     {
 768         // nothing to set as shades are processed by clipping using the path and filling
 769     }
 770     else
 771     {
 772         m_cgColor.Apply( cg );
 773     }
 774 }
 775
 776 void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
 777 {
 778     const GradientComponents& stops = *(GradientComponents*) info ;
 779
 780     CGFloat f = *in;
 781     if (f <= 0.0)
 782     {
 783         // Start
 784         out[0] = stops.comps[0].red;
 785         out[1] = stops.comps[0].green;
 786         out[2] = stops.comps[0].blue;
 787         out[3] = stops.comps[0].alpha;
 788     }
 789     else if (f >= 1.0)
 790     {
 791         // end
 792         out[0] = stops.comps[stops.count - 1].red;
 793         out[1] = stops.comps[stops.count - 1].green;
 794         out[2] = stops.comps[stops.count - 1].blue;
 795         out[3] = stops.comps[stops.count - 1].alpha;
 796     }
 797     else
 798     {
 799         // Find first component with position greater than f
 800         unsigned i;
 801         for ( i = 0; i < stops.count; i++ )
 802         {
 803             if (stops.comps[i].pos > f)
 804                 break;
 805         }
 806
 807         // Interpolated between stops
 808         CGFloat diff = (f - stops.comps[i-1].pos);
 809         CGFloat range = (stops.comps[i].pos - stops.comps[i-1].pos);
 810         CGFloat fact = diff / range;
 811
 812         out[0] = stops.comps[i - 1].red + (stops.comps[i].red - stops.comps[i - 1].red) * fact;
 813         out[1] = stops.comps[i - 1].green + (stops.comps[i].green - stops.comps[i - 1].green) * fact;
 814         out[2] = stops.comps[i - 1].blue + (stops.comps[i].blue - stops.comps[i - 1].blue) * fact;
 815         out[3] = stops.comps[i - 1].alpha + (stops.comps[i].alpha - stops.comps[i - 1].alpha) * fact;
 816     }
 817 }
 818
 819 CGFunctionRef
 820 wxMacCoreGraphicsBrushData::CreateGradientFunction(const wxGraphicsGradientStops& stops)
 821 {
 822
 823     static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL };
 824     static const CGFloat input_value_range [2] = { 0, 1 };
 825     static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 };
 826
 827     m_gradientComponents.Init(stops.GetCount());
 828     for ( unsigned i = 0; i < m_gradientComponents.count; i++ )
 829     {
 830         const wxGraphicsGradientStop stop = stops.Item(i);
 831
 832         m_gradientComponents.comps[i].pos = stop.GetPosition();
 833
 834         const wxColour col = stop.GetColour();
 835         m_gradientComponents.comps[i].red = (CGFloat) (col.Red() / 255.0);
 836         m_gradientComponents.comps[i].green = (CGFloat) (col.Green() / 255.0);
 837         m_gradientComponents.comps[i].blue = (CGFloat) (col.Blue() / 255.0);
 838         m_gradientComponents.comps[i].alpha = (CGFloat) (col.Alpha() / 255.0);
 839     }
 840
 841     return CGFunctionCreate ( &m_gradientComponents,  1,
 842                             input_value_range,
 843                             4,
 844                             output_value_ranges,
 845                             &callbacks);
 846 }
 847
 848 //
 849 // Font
 850 //
 851
 852 #if wxOSX_USE_IPHONE
 853
 854 extern UIFont* CreateUIFont( const wxFont& font );
 855 extern void DrawTextInContext( CGContextRef context, CGPoint where, UIFont *font, NSString* text );
 856 extern CGSize MeasureTextInContext( UIFont *font, NSString* text );
 857
 858 #endif
 859
 860 class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
 861 {
 862 public:
 863     wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
 864     ~wxMacCoreGraphicsFontData();
 865
 866 #if wxOSX_USE_ATSU_TEXT
 867     virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
 868 #endif
 869 #if wxOSX_USE_CORE_TEXT
 870     CTFontRef OSXGetCTFont() const { return m_ctFont ; }
 871 #endif
 872     wxColour GetColour() const { return m_colour ; }
 873
 874     bool GetUnderlined() const { return m_underlined ; }
 875 #if wxOSX_USE_IPHONE
 876     UIFont* GetUIFont() const { return m_uiFont; }
 877 #endif
 878 private :
 879     wxColour m_colour;
 880     bool m_underlined;
 881 #if wxOSX_USE_ATSU_TEXT
 882     ATSUStyle m_macATSUIStyle;
 883 #endif
 884 #if wxOSX_USE_CORE_TEXT
 885     wxCFRef< CTFontRef > m_ctFont;
 886 #endif
 887 #if wxOSX_USE_IPHONE
 888     UIFont*  m_uiFont;
 889 #endif
 890 };
 891
 892 wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
 893 {
 894     m_colour = col;
 895     m_underlined = font.GetUnderlined();
 896
 897 #if wxOSX_USE_CORE_TEXT
 898     m_ctFont.reset( wxMacCreateCTFont( font ) );
 899 #endif
 900 #if wxOSX_USE_IPHONE
 901     m_uiFont = CreateUIFont(font);
 902     wxMacCocoaRetain( m_uiFont );
 903 #endif
 904 #if wxOSX_USE_ATSU_TEXT
 905     OSStatus status = noErr;
 906     m_macATSUIStyle = NULL;
 907
 908     status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
 909
 910     wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
 911
 912     // we need the scale here ...
 913
 914     Fixed atsuSize = IntToFixed( int( 1 * font.GetPointSize()) );
 915     RGBColor atsuColor ;
 916     col.GetRGBColor( &atsuColor );
 917     ATSUAttributeTag atsuTags[] =
 918     {
 919             kATSUSizeTag ,
 920             kATSUColorTag ,
 921     };
 922     ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
 923     {
 924             sizeof( Fixed ) ,
 925             sizeof( RGBColor ) ,
 926     };
 927     ATSUAttributeValuePtr atsuValues[WXSIZEOF(atsuTags)] =
 928     {
 929             &atsuSize ,
 930             &atsuColor ,
 931     };
 932
 933     status = ::ATSUSetAttributes(
 934         m_macATSUIStyle, WXSIZEOF(atsuTags),
 935         atsuTags, atsuSizes, atsuValues);
 936
 937     wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
 938 #endif
 939 }
 940
 941 wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
 942 {
 943 #if wxOSX_USE_CORE_TEXT
 944 #endif
 945 #if wxOSX_USE_ATSU_TEXT
 946     if ( m_macATSUIStyle )
 947     {
 948         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 949         m_macATSUIStyle = NULL;
 950     }
 951 #endif
 952 #if wxOSX_USE_IPHONE
 953     wxMacCocoaRelease( m_uiFont );
 954 #endif
 955 }
 956
 957 class wxMacCoreGraphicsBitmapData : public wxGraphicsBitmapData
 958 {
 959 public:
 960     wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome );
 961     ~wxMacCoreGraphicsBitmapData();
 962
 963     virtual CGImageRef GetBitmap() { return m_bitmap; }
 964     virtual void* GetNativeBitmap() const { return m_bitmap; }
 965     bool IsMonochrome() { return m_monochrome; }
 966
 967 #if wxUSE_IMAGE
 968     wxImage ConvertToImage() const
 969     {
 970         return wxBitmap(m_bitmap).ConvertToImage();
 971     }
 972 #endif // wxUSE_IMAGE
 973
 974 private :
 975     CGImageRef m_bitmap;
 976     bool m_monochrome;
 977 };
 978
 979 wxMacCoreGraphicsBitmapData::wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome ) : wxGraphicsBitmapData( renderer ),
 980     m_bitmap(bitmap), m_monochrome(monochrome)
 981 {
 982 }
 983
 984 wxMacCoreGraphicsBitmapData::~wxMacCoreGraphicsBitmapData()
 985 {
 986     CGImageRelease( m_bitmap );
 987 }
 988
 989
 990 //
 991 // Graphics Matrix
 992 //
 993
 994 //-----------------------------------------------------------------------------
 995 // wxMacCoreGraphicsMatrix declaration
 996 //-----------------------------------------------------------------------------
 997
 998 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
 999 {
1000 public :
1001     wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
1002
1003     virtual ~wxMacCoreGraphicsMatrixData() ;
1004
1005     virtual wxGraphicsObjectRefData *Clone() const ;
1006
1007     // concatenates the matrix
1008     virtual void Concat( const wxGraphicsMatrixData *t );
1009
1010     // sets the matrix to the respective values
1011     virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
1012         wxDouble tx=0.0, wxDouble ty=0.0);
1013
1014     // gets the component valuess of the matrix
1015     virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL,  wxDouble* c=NULL,
1016                      wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
1017
1018     // makes this the inverse matrix
1019     virtual void Invert();
1020
1021     // returns true if the elements of the transformation matrix are equal ?
1022     virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
1023
1024     // return true if this is the identity matrix
1025     virtual bool IsIdentity() const;
1026
1027     //
1028     // transformation
1029     //
1030
1031     // add the translation to this matrix
1032     virtual void Translate( wxDouble dx , wxDouble dy );
1033
1034     // add the scale to this matrix
1035     virtual void Scale( wxDouble xScale , wxDouble yScale );
1036
1037     // add the rotation to this matrix (radians)
1038     virtual void Rotate( wxDouble angle );
1039
1040     //
1041     // apply the transforms
1042     //
1043
1044     // applies that matrix to the point
1045     virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
1046
1047     // applies the matrix except for translations
1048     virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
1049
1050     // returns the native representation
1051     virtual void * GetNativeMatrix() const;
1052
1053 private :
1054     CGAffineTransform m_matrix;
1055 } ;
1056
1057 //-----------------------------------------------------------------------------
1058 // wxMacCoreGraphicsMatrix implementation
1059 //-----------------------------------------------------------------------------
1060
1061 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
1062 {
1063 }
1064
1065 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
1066 {
1067 }
1068
1069 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
1070 {
1071     wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
1072     m->m_matrix = m_matrix ;
1073     return m;
1074 }
1075
1076 // concatenates the matrix
1077 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
1078 {
1079     m_matrix = CGAffineTransformConcat(*((CGAffineTransform*) t->GetNativeMatrix()), m_matrix );
1080 }
1081
1082 // sets the matrix to the respective values
1083 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
1084     wxDouble tx, wxDouble ty)
1085 {
1086     m_matrix = CGAffineTransformMake((CGFloat) a,(CGFloat) b,(CGFloat) c,(CGFloat) d,(CGFloat) tx,(CGFloat) ty);
1087 }
1088
1089 // gets the component valuess of the matrix
1090 void wxMacCoreGraphicsMatrixData::Get(wxDouble* a, wxDouble* b,  wxDouble* c,
1091                                       wxDouble* d, wxDouble* tx, wxDouble* ty) const
1092 {
1093     if (a)  *a = m_matrix.a;
1094     if (b)  *b = m_matrix.b;
1095     if (c)  *c = m_matrix.c;
1096     if (d)  *d = m_matrix.d;
1097     if (tx) *tx= m_matrix.tx;
1098     if (ty) *ty= m_matrix.ty;
1099 }
1100
1101 // makes this the inverse matrix
1102 void wxMacCoreGraphicsMatrixData::Invert()
1103 {
1104     m_matrix = CGAffineTransformInvert( m_matrix );
1105 }
1106
1107 // returns true if the elements of the transformation matrix are equal ?
1108 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
1109 {
1110     return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
1111 }
1112
1113 // return true if this is the identity matrix
1114 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
1115 {
1116     return ( m_matrix.a == 1 && m_matrix.d == 1 &&
1117         m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
1118 }
1119
1120 //
1121 // transformation
1122 //
1123
1124 // add the translation to this matrix
1125 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
1126 {
1127     m_matrix = CGAffineTransformTranslate( m_matrix, (CGFloat) dx, (CGFloat) dy);
1128 }
1129
1130 // add the scale to this matrix
1131 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1132 {
1133     m_matrix = CGAffineTransformScale( m_matrix, (CGFloat) xScale, (CGFloat) yScale);
1134 }
1135
1136 // add the rotation to this matrix (radians)
1137 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
1138 {
1139     m_matrix = CGAffineTransformRotate( m_matrix, (CGFloat) angle);
1140 }
1141
1142 //
1143 // apply the transforms
1144 //
1145
1146 // applies that matrix to the point
1147 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1148 {
1149     CGPoint pt = CGPointApplyAffineTransform( CGPointMake((CGFloat) *x,(CGFloat) *y), m_matrix);
1150
1151     *x = pt.x;
1152     *y = pt.y;
1153 }
1154
1155 // applies the matrix except for translations
1156 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1157 {
1158     CGSize sz = CGSizeApplyAffineTransform( CGSizeMake((CGFloat) *dx,(CGFloat) *dy) , m_matrix );
1159     *dx = sz.width;
1160     *dy = sz.height;
1161 }
1162
1163 // returns the native representation
1164 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
1165 {
1166     return (void*) &m_matrix;
1167 }
1168
1169 //
1170 // Graphics Path
1171 //
1172
1173 //-----------------------------------------------------------------------------
1174 // wxMacCoreGraphicsPath declaration
1175 //-----------------------------------------------------------------------------
1176
1177 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
1178 {
1179 public :
1180     wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
1181
1182     ~wxMacCoreGraphicsPathData();
1183
1184     virtual wxGraphicsObjectRefData *Clone() const;
1185
1186     // begins a new subpath at (x,y)
1187     virtual void MoveToPoint( wxDouble x, wxDouble y );
1188
1189     // adds a straight line from the current point to (x,y)
1190     virtual void AddLineToPoint( wxDouble x, wxDouble y );
1191
1192     // adds a cubic Bezier curve from the current point, using two control points and an end point
1193     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
1194
1195     // closes the current sub-path
1196     virtual void CloseSubpath();
1197
1198     // gets the last point of the current path, (0,0) if not yet set
1199     virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
1200
1201     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1202     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
1203
1204     //
1205     // These are convenience functions which - if not available natively will be assembled
1206     // using the primitives from above
1207     //
1208
1209     // adds a quadratic Bezier curve from the current point, using a control point and an end point
1210     virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
1211
1212     // appends a rectangle as a new closed subpath
1213     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1214
1215     // appends a circle as a new closed subpath
1216     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1217
1218     // appends an ellipsis as a new closed subpath fitting the passed rectangle
1219     virtual void AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
1220
1221     // draws a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
1222     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1223
1224     // adds another path
1225     virtual void AddPath( const wxGraphicsPathData* path );
1226
1227     // returns the native path
1228     virtual void * GetNativePath() const { return m_path; }
1229
1230     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1231     virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1232
1233     // transforms each point of this path by the matrix
1234     virtual void Transform( const wxGraphicsMatrixData* matrix );
1235
1236     // gets the bounding box enclosing all points (possibly including control points)
1237     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const;
1238
1239     virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
1240 private :
1241     CGMutablePathRef m_path;
1242 };
1243
1244 //-----------------------------------------------------------------------------
1245 // wxMacCoreGraphicsPath implementation
1246 //-----------------------------------------------------------------------------
1247
1248 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1249 {
1250     if ( path )
1251         m_path = path;
1252     else
1253         m_path = CGPathCreateMutable();
1254 }
1255
1256 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1257 {
1258     CGPathRelease( m_path );
1259 }
1260
1261 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1262 {
1263     wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1264     return clone ;
1265 }
1266
1267
1268 // opens (starts) a new subpath
1269 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1270 {
1271     CGPathMoveToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1272 }
1273
1274 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1275 {
1276     CGPathAddLineToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1277 }
1278
1279 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1280 {
1281     CGPathAddCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) cx2, (CGFloat) cy2, (CGFloat) x , (CGFloat) y );
1282 }
1283
1284 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1285 {
1286     CGPathAddQuadCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) x , (CGFloat) y );
1287 }
1288
1289 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1290 {
1291     CGRect cgRect = { { (CGFloat) x , (CGFloat) y } , { (CGFloat) w , (CGFloat) h } };
1292     CGPathAddRect( m_path , NULL , cgRect );
1293 }
1294
1295 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1296 {
1297     CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x-r,y-r,2*r,2*r));
1298 }
1299
1300 void wxMacCoreGraphicsPathData::AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1301 {
1302     CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x,y,w,h));
1303 }
1304
1305 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1306 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1307 {
1308     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1309     CGPathAddArc( m_path, NULL , (CGFloat) x, (CGFloat) y, (CGFloat) r, (CGFloat) startAngle, (CGFloat) endAngle, !clockwise);
1310 }
1311
1312 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1313 {
1314     CGPathAddArcToPoint( m_path, NULL , (CGFloat) x1, (CGFloat) y1, (CGFloat) x2, (CGFloat) y2, (CGFloat) r);
1315 }
1316
1317 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1318 {
1319     CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1320 }
1321
1322 // closes the current subpath
1323 void wxMacCoreGraphicsPathData::CloseSubpath()
1324 {
1325     CGPathCloseSubpath( m_path );
1326 }
1327
1328 // gets the last point of the current path, (0,0) if not yet set
1329 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1330 {
1331     CGPoint p = CGPathGetCurrentPoint( m_path );
1332     *x = p.x;
1333     *y = p.y;
1334 }
1335
1336 // transforms each point of this path by the matrix
1337 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1338 {
1339     CGMutablePathRef p = CGPathCreateMutable() ;
1340     CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1341     CGPathRelease( m_path );
1342     m_path = p;
1343 }
1344
1345 // gets the bounding box enclosing all points (possibly including control points)
1346 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1347 {
1348     CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1349     *x = bounds.origin.x;
1350     *y = bounds.origin.y;
1351     *w = bounds.size.width;
1352     *h = bounds.size.height;
1353 }
1354
1355 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle) const
1356 {
1357     return CGPathContainsPoint( m_path, NULL, CGPointMake((CGFloat) x,(CGFloat) y), fillStyle == wxODDEVEN_RULE );
1358 }
1359
1360 //
1361 // Graphics Context
1362 //
1363
1364 //-----------------------------------------------------------------------------
1365 // wxMacCoreGraphicsContext declaration
1366 //-----------------------------------------------------------------------------
1367
1368 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1369 {
1370 public:
1371     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1372
1373 #if wxOSX_USE_CARBON
1374     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1375 #endif
1376
1377     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1378
1379     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1380
1381     ~wxMacCoreGraphicsContext();
1382
1383     void Init();
1384
1385     virtual void StartPage( wxDouble width, wxDouble height );
1386
1387     virtual void EndPage();
1388
1389     virtual void Flush();
1390
1391     // push the current state of the context, ie the transformation matrix on a stack
1392     virtual void PushState();
1393
1394     // pops a stored state from the stack
1395     virtual void PopState();
1396
1397     // clips drawings to the region
1398     virtual void Clip( const wxRegion &region );
1399
1400     // clips drawings to the rect
1401     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1402
1403     // resets the clipping to original extent
1404     virtual void ResetClip();
1405
1406     virtual void * GetNativeContext();
1407
1408     virtual bool SetAntialiasMode(wxAntialiasMode antialias);
1409
1410     virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation);
1411
1412     virtual bool SetCompositionMode(wxCompositionMode op);
1413
1414     virtual void BeginLayer(wxDouble opacity);
1415
1416     virtual void EndLayer();
1417
1418     //
1419     // transformation
1420     //
1421
1422     // translate
1423     virtual void Translate( wxDouble dx , wxDouble dy );
1424
1425     // scale
1426     virtual void Scale( wxDouble xScale , wxDouble yScale );
1427
1428     // rotate (radians)
1429     virtual void Rotate( wxDouble angle );
1430
1431     // concatenates this transform with the current transform of this context
1432     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1433
1434     // sets the transform of this context
1435     virtual void SetTransform( const wxGraphicsMatrix& matrix );
1436
1437     // gets the matrix of this context
1438     virtual wxGraphicsMatrix GetTransform() const;
1439     //
1440     // setting the paint
1441     //
1442
1443     // strokes along a path with the current pen
1444     virtual void StrokePath( const wxGraphicsPath &path );
1445
1446     // fills a path with the current brush
1447     virtual void FillPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1448
1449     // draws a path by first filling and then stroking
1450     virtual void DrawPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1451
1452     virtual bool ShouldOffset() const
1453     {
1454         if ( !m_enableOffset )
1455             return false;
1456
1457         int penwidth = 0 ;
1458         if ( !m_pen.IsNull() )
1459         {
1460             penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1461             if ( penwidth == 0 )
1462                 penwidth = 1;
1463         }
1464         return ( penwidth % 2 ) == 1;
1465     }
1466     //
1467     // text
1468     //
1469
1470     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1471         wxDouble *descent, wxDouble *externalLeading ) const;
1472
1473     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1474
1475     //
1476     // image support
1477     //
1478
1479     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1480
1481     virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1482
1483     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1484
1485     // fast convenience methods
1486
1487
1488     virtual void DrawRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1489
1490     void SetNativeContext( CGContextRef cg );
1491
1492     wxDECLARE_NO_COPY_CLASS(wxMacCoreGraphicsContext);
1493
1494 private:
1495     bool EnsureIsValid();
1496     void CheckInvariants() const;
1497
1498     virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
1499     virtual void DoDrawRotatedText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1500
1501     CGContextRef m_cgContext;
1502 #if wxOSX_USE_CARBON
1503     WindowRef m_windowRef;
1504 #else
1505     WXWidget m_view;
1506 #endif
1507     bool m_contextSynthesized;
1508     CGAffineTransform m_windowTransform;
1509     bool m_invisible;
1510
1511 #if wxOSX_USE_COCOA_OR_CARBON
1512     wxCFRef<HIShapeRef> m_clipRgn;
1513 #endif
1514 };
1515
1516 //-----------------------------------------------------------------------------
1517 // device context implementation
1518 //
1519 // more and more of the dc functionality should be implemented by calling
1520 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1521 // also coordinate conversions should be moved to native matrix ops
1522 //-----------------------------------------------------------------------------
1523
1524 // we always stock two context states, one at entry, to be able to preserve the
1525 // state we were called with, the other one after changing to HI Graphics orientation
1526 // (this one is used for getting back clippings etc)
1527
1528 //-----------------------------------------------------------------------------
1529 // wxMacCoreGraphicsContext implementation
1530 //-----------------------------------------------------------------------------
1531
1532 class wxQuartzOffsetHelper
1533 {
1534 public :
1535     wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1536     {
1537         m_cg = cg;
1538         m_offset = offset;
1539         if ( m_offset )
1540         {
1541             m_userOffset = CGContextConvertSizeToUserSpace( m_cg, CGSizeMake( 0.5 , 0.5 ) );
1542             CGContextTranslateCTM( m_cg, m_userOffset.width , m_userOffset.height );
1543         }
1544         else
1545         {
1546             m_userOffset = CGSizeMake(0.0, 0.0);
1547         }
1548
1549     }
1550     ~wxQuartzOffsetHelper( )
1551     {
1552         if ( m_offset )
1553             CGContextTranslateCTM( m_cg, -m_userOffset.width , -m_userOffset.height );
1554     }
1555 public :
1556     CGSize m_userOffset;
1557     CGContextRef m_cg;
1558     bool m_offset;
1559 } ;
1560
1561 void wxMacCoreGraphicsContext::Init()
1562 {
1563     m_cgContext = NULL;
1564     m_contextSynthesized = false;
1565     m_width = 0;
1566     m_height = 0;
1567 #if wxOSX_USE_CARBON
1568     m_windowRef = NULL;
1569 #endif
1570 #if wxOSX_USE_COCOA_OR_IPHONE
1571     m_view = NULL;
1572 #endif
1573     m_invisible = false;
1574     m_antialias = wxANTIALIAS_DEFAULT;
1575     m_interpolation = wxINTERPOLATION_DEFAULT;
1576 }
1577
1578 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer)
1579 {
1580     Init();
1581     SetNativeContext(cgcontext);
1582     m_width = width;
1583     m_height = height;
1584 }
1585
1586 #if wxOSX_USE_CARBON
1587 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1588 {
1589     Init();
1590     m_windowRef = window;
1591     m_enableOffset = true;
1592 }
1593 #endif
1594
1595 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1596 {
1597     Init();
1598
1599     m_enableOffset = true;
1600     wxSize sz = window->GetSize();
1601     m_width = sz.x;
1602     m_height = sz.y;
1603
1604 #if wxOSX_USE_COCOA_OR_IPHONE
1605     m_view = window->GetHandle();
1606
1607 #if wxOSX_USE_COCOA
1608     if ( ! window->GetPeer()->IsFlipped() )
1609     {
1610         m_windowTransform = CGAffineTransformMakeTranslation( 0 , m_height );
1611         m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1612     }
1613     else
1614 #endif
1615     {
1616         m_windowTransform = CGAffineTransformIdentity;
1617     }
1618 #else
1619     int originX , originY;
1620     originX = originY = 0;
1621     Rect bounds = { 0,0,0,0 };
1622     m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1623     window->MacWindowToRootWindow( &originX , &originY );
1624     GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1625     m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1626     m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1627     m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1628 #endif
1629 }
1630
1631 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1632 {
1633     Init();
1634 }
1635
1636 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1637 {
1638     SetNativeContext(NULL);
1639 }
1640
1641
1642 void wxMacCoreGraphicsContext::CheckInvariants() const
1643 {
1644     // check invariants here for debugging ...
1645 }
1646
1647
1648
1649 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1650 {
1651     CGRect r;
1652     if ( width != 0 && height != 0)
1653         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) width  , (CGFloat) height );
1654     else
1655         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) m_width  , (CGFloat) m_height );
1656
1657     CGContextBeginPage(m_cgContext,  &r );
1658 //    CGContextTranslateCTM( m_cgContext , 0 ,  height == 0 ? m_height : height );
1659 //    CGContextScaleCTM( m_cgContext , 1 , -1 );
1660 }
1661
1662 void wxMacCoreGraphicsContext::EndPage()
1663 {
1664     CGContextEndPage(m_cgContext);
1665 }
1666
1667 void wxMacCoreGraphicsContext::Flush()
1668 {
1669     CGContextFlush(m_cgContext);
1670 }
1671
1672 bool wxMacCoreGraphicsContext::EnsureIsValid()
1673 {
1674     CheckInvariants();
1675
1676     if ( !m_cgContext )
1677     {
1678         if (m_invisible)
1679             return false;
1680
1681 #if wxOSX_USE_COCOA
1682         if ( wxOSXLockFocus(m_view) )
1683         {
1684             m_cgContext = wxOSXGetContextFromCurrentContext();
1685             wxASSERT_MSG( m_cgContext != NULL, wxT("Unable to retrieve drawing context from View"));
1686         }
1687         else
1688         {
1689             m_invisible = true;
1690         }
1691 #endif
1692 #if wxOSX_USE_IPHONE
1693         m_cgContext = wxOSXGetContextFromCurrentContext();
1694         if ( m_cgContext == NULL )
1695         {
1696             m_invisible = true;
1697         }
1698 #endif
1699 #if wxOSX_USE_CARBON
1700         OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1701         if ( status != noErr )
1702         {
1703             wxFAIL_MSG("Cannot nest wxDCs on the same window");
1704         }
1705 #endif
1706         if ( m_cgContext )
1707         {
1708             CGContextSaveGState( m_cgContext );
1709 #if wxOSX_USE_COCOA_OR_CARBON
1710             if ( m_clipRgn.get() )
1711             {
1712                 wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1713                 // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1714                 if ( HIShapeIsEmpty(hishape))
1715                 {
1716                     CGRect empty = CGRectMake( 0,0,0,0 );
1717                     CGContextClipToRect( m_cgContext, empty );
1718                 }
1719                 else
1720                 {
1721                     HIShapeReplacePathInCGContext( hishape, m_cgContext );
1722                     CGContextClip( m_cgContext );
1723                 }
1724             }
1725 #endif
1726             CGContextConcatCTM( m_cgContext, m_windowTransform );
1727             CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
1728             m_contextSynthesized = true;
1729             CGContextSaveGState( m_cgContext );
1730
1731 #if 0 // turn on for debugging of clientdc
1732             static float color = 0.5 ;
1733             static int channel = 0 ;
1734             CGRect bounds = CGRectMake(-1000,-1000,2000,2000);
1735             CGContextSetRGBFillColor( m_cgContext, channel == 0 ? color : 0.5 ,
1736                 channel == 1 ? color : 0.5 , channel == 2 ? color : 0.5 , 1 );
1737             CGContextFillRect( m_cgContext, bounds );
1738             color += 0.1 ;
1739             if ( color > 0.9 )
1740             {
1741                 color = 0.5 ;
1742                 channel++ ;
1743                 if ( channel == 3 )
1744                     channel = 0 ;
1745             }
1746 #endif
1747         }
1748     }
1749     CheckInvariants();
1750
1751     return m_cgContext != NULL;
1752 }
1753
1754 bool wxMacCoreGraphicsContext::SetAntialiasMode(wxAntialiasMode antialias)
1755 {
1756     if (!EnsureIsValid())
1757         return true;
1758
1759     if (m_antialias == antialias)
1760         return true;
1761
1762     m_antialias = antialias;
1763
1764     bool antialiasMode;
1765     switch (antialias)
1766     {
1767         case wxANTIALIAS_DEFAULT:
1768             antialiasMode = true;
1769             break;
1770         case wxANTIALIAS_NONE:
1771             antialiasMode = false;
1772             break;
1773         default:
1774             return false;
1775     }
1776     CGContextSetShouldAntialias(m_cgContext, antialiasMode);
1777     CheckInvariants();
1778     return true;
1779 }
1780
1781 bool wxMacCoreGraphicsContext::SetInterpolationQuality(wxInterpolationQuality interpolation)
1782 {
1783     if (!EnsureIsValid())
1784         return true;
1785
1786     if (m_interpolation == interpolation)
1787         return true;
1788
1789     m_interpolation = interpolation;
1790     CGInterpolationQuality quality;
1791
1792     switch (interpolation)
1793     {
1794         case wxINTERPOLATION_DEFAULT:
1795             quality = kCGInterpolationDefault;
1796             break;
1797         case wxINTERPOLATION_NONE:
1798             quality = kCGInterpolationNone;
1799             break;
1800         case wxINTERPOLATION_FAST:
1801             quality = kCGInterpolationLow;
1802             break;
1803         case wxINTERPOLATION_GOOD:
1804 #if wxOSX_USE_COCOA_OR_CARBON
1805             quality = UMAGetSystemVersion() < 0x1060 ? kCGInterpolationHigh : (CGInterpolationQuality) 4 /*kCGInterpolationMedium only on 10.6*/;
1806 #else
1807             quality = kCGInterpolationMedium;
1808 #endif
1809             break;
1810         case wxINTERPOLATION_BEST:
1811             quality = kCGInterpolationHigh;
1812             break;
1813         default:
1814             return false;
1815     }
1816     CGContextSetInterpolationQuality(m_cgContext, quality);
1817     CheckInvariants();
1818     return true;
1819 }
1820
1821 bool wxMacCoreGraphicsContext::SetCompositionMode(wxCompositionMode op)
1822 {
1823     if (!EnsureIsValid())
1824         return true;
1825
1826     if ( m_composition == op )
1827         return true;
1828
1829     m_composition = op;
1830
1831     if (m_composition == wxCOMPOSITION_DEST)
1832         return true;
1833
1834     // TODO REMOVE if we don't need it because of bugs in 10.5
1835 #if 0
1836     {
1837         CGCompositeOperation cop = kCGCompositeOperationSourceOver;
1838         CGBlendMode mode = kCGBlendModeNormal;
1839         switch( op )
1840         {
1841         case wxCOMPOSITION_CLEAR:
1842             cop = kCGCompositeOperationClear;
1843             break;
1844         case wxCOMPOSITION_SOURCE:
1845             cop = kCGCompositeOperationCopy;
1846             break;
1847         case wxCOMPOSITION_OVER:
1848             mode = kCGBlendModeNormal;
1849             break;
1850         case wxCOMPOSITION_IN:
1851             cop = kCGCompositeOperationSourceIn;
1852             break;
1853         case wxCOMPOSITION_OUT:
1854             cop = kCGCompositeOperationSourceOut;
1855             break;
1856         case wxCOMPOSITION_ATOP:
1857             cop = kCGCompositeOperationSourceAtop;
1858             break;
1859         case wxCOMPOSITION_DEST_OVER:
1860             cop = kCGCompositeOperationDestinationOver;
1861             break;
1862         case wxCOMPOSITION_DEST_IN:
1863             cop = kCGCompositeOperationDestinationIn;
1864             break;
1865         case wxCOMPOSITION_DEST_OUT:
1866             cop = kCGCompositeOperationDestinationOut;
1867             break;
1868         case wxCOMPOSITION_DEST_ATOP:
1869            cop = kCGCompositeOperationDestinationAtop;
1870             break;
1871         case wxCOMPOSITION_XOR:
1872             cop = kCGCompositeOperationXOR;
1873             break;
1874         case wxCOMPOSITION_ADD:
1875             mode = kCGBlendModePlusLighter ;
1876             break;
1877         default:
1878             return false;
1879         }
1880         if ( cop != kCGCompositeOperationSourceOver )
1881             CGContextSetCompositeOperation(m_cgContext, cop);
1882         else
1883             CGContextSetBlendMode(m_cgContext, mode);
1884     }
1885 #endif
1886     {
1887         CGBlendMode mode = kCGBlendModeNormal;
1888         switch( op )
1889         {
1890         case wxCOMPOSITION_CLEAR:
1891             mode = kCGBlendModeClear;
1892             break;
1893         case wxCOMPOSITION_SOURCE:
1894             mode = kCGBlendModeCopy;
1895             break;
1896         case wxCOMPOSITION_OVER:
1897             mode = kCGBlendModeNormal;
1898             break;
1899         case wxCOMPOSITION_IN:
1900             mode = kCGBlendModeSourceIn;
1901             break;
1902         case wxCOMPOSITION_OUT:
1903             mode = kCGBlendModeSourceOut;
1904             break;
1905         case wxCOMPOSITION_ATOP:
1906             mode = kCGBlendModeSourceAtop;
1907             break;
1908         case wxCOMPOSITION_DEST_OVER:
1909             mode = kCGBlendModeDestinationOver;
1910             break;
1911         case wxCOMPOSITION_DEST_IN:
1912             mode = kCGBlendModeDestinationIn;
1913             break;
1914         case wxCOMPOSITION_DEST_OUT:
1915             mode = kCGBlendModeDestinationOut;
1916             break;
1917         case wxCOMPOSITION_DEST_ATOP:
1918            mode = kCGBlendModeDestinationAtop;
1919             break;
1920         case wxCOMPOSITION_XOR:
1921             mode = kCGBlendModeExclusion; // Not kCGBlendModeXOR!
1922             break;
1923
1924         case wxCOMPOSITION_ADD:
1925             mode = kCGBlendModePlusLighter ;
1926             break;
1927         default:
1928             return false;
1929         }
1930         CGContextSetBlendMode(m_cgContext, mode);
1931     }
1932
1933     CheckInvariants();
1934     return true;
1935 }
1936
1937 void wxMacCoreGraphicsContext::BeginLayer(wxDouble opacity)
1938 {
1939     CheckInvariants();
1940     CGContextSaveGState(m_cgContext);
1941     CGContextSetAlpha(m_cgContext, (CGFloat) opacity);
1942     CGContextBeginTransparencyLayer(m_cgContext, 0);
1943     CheckInvariants();
1944 }
1945
1946 void wxMacCoreGraphicsContext::EndLayer()
1947 {
1948     CheckInvariants();
1949     CGContextEndTransparencyLayer(m_cgContext);
1950     CGContextRestoreGState(m_cgContext);
1951     CheckInvariants();
1952 }
1953
1954 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1955 {
1956     CheckInvariants();
1957 #if wxOSX_USE_COCOA_OR_CARBON
1958     if( m_cgContext )
1959     {
1960         wxCFRef<HIShapeRef> shape = wxCFRefFromGet(region.GetWXHRGN());
1961         // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1962         if ( HIShapeIsEmpty(shape))
1963         {
1964             CGRect empty = CGRectMake( 0,0,0,0 );
1965             CGContextClipToRect( m_cgContext, empty );
1966         }
1967         else
1968         {
1969             HIShapeReplacePathInCGContext( shape, m_cgContext );
1970             CGContextClip( m_cgContext );
1971         }
1972     }
1973     else
1974     {
1975         // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1976         // to regions we try at least to have correct translations
1977         HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1978
1979         CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1980         HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1981         m_clipRgn.reset(mutableShape);
1982     }
1983 #else
1984     // allow usage as measuring context
1985     // wxASSERT_MSG( m_cgContext != NULL, "Needs a valid context for clipping" );
1986 #endif
1987     CheckInvariants();
1988 }
1989
1990 // clips drawings to the rect
1991 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1992 {
1993     CheckInvariants();
1994     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1995     if ( m_cgContext )
1996     {
1997         CGContextClipToRect( m_cgContext, r );
1998     }
1999     else
2000     {
2001 #if wxOSX_USE_COCOA_OR_CARBON
2002         // the clipping itself must be stored as device coordinates, otherwise
2003         // we cannot apply it back correctly
2004         r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
2005         r.size= CGSizeApplyAffineTransform(r.size, m_windowTransform);
2006         m_clipRgn.reset(HIShapeCreateWithRect(&r));
2007 #else
2008     // allow usage as measuring context
2009     // wxFAIL_MSG( "Needs a valid context for clipping" );
2010 #endif
2011     }
2012     CheckInvariants();
2013 }
2014
2015     // resets the clipping to original extent
2016 void wxMacCoreGraphicsContext::ResetClip()
2017 {
2018     if ( m_cgContext )
2019     {
2020         // there is no way for clearing the clip, we can only revert to the stored
2021         // state, but then we have to make sure everything else is NOT restored
2022         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2023         CGContextRestoreGState( m_cgContext );
2024         CGContextSaveGState( m_cgContext );
2025         CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
2026         transformNew = CGAffineTransformInvert( transformNew ) ;
2027         CGContextConcatCTM( m_cgContext, transformNew);
2028         CGContextConcatCTM( m_cgContext, transform);
2029     }
2030     else
2031     {
2032 #if wxOSX_USE_COCOA_OR_CARBON
2033         m_clipRgn.reset();
2034 #else
2035     // allow usage as measuring context
2036     // wxFAIL_MSG( "Needs a valid context for clipping" );
2037 #endif
2038     }
2039     CheckInvariants();
2040 }
2041
2042 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
2043 {
2044     if ( m_pen.IsNull() )
2045         return ;
2046
2047     if (!EnsureIsValid())
2048         return;
2049
2050     if (m_composition == wxCOMPOSITION_DEST)
2051         return;
2052
2053     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
2054
2055     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
2056     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2057     CGContextStrokePath( m_cgContext );
2058
2059     CheckInvariants();
2060 }
2061
2062 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
2063 {
2064     if (!EnsureIsValid())
2065         return;
2066
2067     if (m_composition == wxCOMPOSITION_DEST)
2068         return;
2069
2070     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2071     {
2072         // when using shading, we cannot draw pen and brush at the same time
2073         // revert to the base implementation of first filling and then stroking
2074         wxGraphicsContext::DrawPath( path, fillStyle );
2075         return;
2076     }
2077
2078     CGPathDrawingMode mode = kCGPathFill ;
2079     if ( m_brush.IsNull() )
2080     {
2081         if ( m_pen.IsNull() )
2082             return;
2083         else
2084             mode = kCGPathStroke;
2085     }
2086     else
2087     {
2088         if ( m_pen.IsNull() )
2089         {
2090             if ( fillStyle == wxODDEVEN_RULE )
2091                 mode = kCGPathEOFill;
2092             else
2093                 mode = kCGPathFill;
2094         }
2095         else
2096         {
2097             if ( fillStyle == wxODDEVEN_RULE )
2098                 mode = kCGPathEOFillStroke;
2099             else
2100                 mode = kCGPathFillStroke;
2101         }
2102     }
2103
2104     if ( !m_brush.IsNull() )
2105         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2106     if ( !m_pen.IsNull() )
2107         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
2108
2109     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
2110
2111     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2112     CGContextDrawPath( m_cgContext , mode );
2113
2114     CheckInvariants();
2115 }
2116
2117 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
2118 {
2119     if ( m_brush.IsNull() )
2120         return;
2121
2122     if (!EnsureIsValid())
2123         return;
2124
2125     if (m_composition == wxCOMPOSITION_DEST)
2126         return;
2127
2128     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2129     {
2130         CGContextSaveGState( m_cgContext );
2131         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2132         CGContextClip( m_cgContext );
2133         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2134         CGContextRestoreGState( m_cgContext);
2135     }
2136     else
2137     {
2138         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2139         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2140         if ( fillStyle == wxODDEVEN_RULE )
2141             CGContextEOFillPath( m_cgContext );
2142         else
2143             CGContextFillPath( m_cgContext );
2144     }
2145
2146     CheckInvariants();
2147 }
2148
2149 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
2150 {
2151     // we allow either setting or clearing but not replacing
2152     wxASSERT( m_cgContext == NULL || cg == NULL );
2153
2154     if ( m_cgContext )
2155     {
2156         CheckInvariants();
2157         CGContextRestoreGState( m_cgContext );
2158         CGContextRestoreGState( m_cgContext );
2159         if ( m_contextSynthesized )
2160         {
2161 #if wxOSX_USE_CARBON
2162             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
2163 #endif
2164 #if wxOSX_USE_COCOA
2165             wxOSXUnlockFocus(m_view);
2166 #endif
2167         }
2168         else
2169             CGContextRelease(m_cgContext);
2170     }
2171
2172     m_cgContext = cg;
2173
2174     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
2175     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
2176     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
2177     // for this one operation.
2178
2179     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
2180     // can be removed.
2181     if (m_cgContext)
2182     {
2183         CGContextRetain(m_cgContext);
2184         CGContextSaveGState( m_cgContext );
2185         CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
2186         CGContextSaveGState( m_cgContext );
2187         m_contextSynthesized = false;
2188     }
2189 }
2190
2191 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
2192 {
2193     if ( m_cgContext )
2194         CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
2195     else
2196         m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
2197 }
2198
2199 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
2200 {
2201     if ( m_cgContext )
2202         CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
2203     else
2204         m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
2205 }
2206
2207 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
2208 {
2209     if ( m_cgContext )
2210         CGContextRotateCTM( m_cgContext , (CGFloat) angle );
2211     else
2212         m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
2213 }
2214
2215 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2216 {
2217     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
2218     DrawBitmap(bitmap, x, y, w, h);
2219 }
2220
2221 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2222 {
2223     if (!EnsureIsValid())
2224         return;
2225
2226     if (m_composition == wxCOMPOSITION_DEST)
2227         return;
2228
2229 #ifdef __WXMAC__
2230     wxMacCoreGraphicsBitmapData* refdata = static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2231     CGImageRef image = refdata->GetBitmap();
2232     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2233     if ( refdata->IsMonochrome() == 1 )
2234     {
2235         // is a mask, the '1' in the mask tell where to draw the current brush
2236         if (  !m_brush.IsNull() )
2237         {
2238             if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2239             {
2240                 // TODO clip to mask
2241             /*
2242                 CGContextSaveGState( m_cgContext );
2243                 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2244                 CGContextClip( m_cgContext );
2245                 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2246                 CGContextRestoreGState( m_cgContext);
2247             */
2248             }
2249             else
2250             {
2251                 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2252                 wxMacDrawCGImage( m_cgContext , &r , image );
2253             }
2254         }
2255     }
2256     else
2257     {
2258         wxMacDrawCGImage( m_cgContext , &r , image );
2259     }
2260 #endif
2261
2262     CheckInvariants();
2263 }
2264
2265 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2266 {
2267     if (!EnsureIsValid())
2268         return;
2269
2270     if (m_composition == wxCOMPOSITION_DEST)
2271         return;
2272
2273     CGContextSaveGState( m_cgContext );
2274     CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
2275     CGContextScaleCTM( m_cgContext, 1, -1 );
2276 #if wxOSX_USE_COCOA_OR_CARBON
2277     CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
2278     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
2279         NULL , kPlotIconRefNormalFlags , icon.GetHICON() );
2280 #endif
2281     CGContextRestoreGState( m_cgContext );
2282
2283     CheckInvariants();
2284 }
2285
2286 void wxMacCoreGraphicsContext::PushState()
2287 {
2288     if (!EnsureIsValid())
2289         return;
2290
2291     CGContextSaveGState( m_cgContext );
2292 }
2293
2294 void wxMacCoreGraphicsContext::PopState()
2295 {
2296     if (!EnsureIsValid())
2297         return;
2298
2299     CGContextRestoreGState( m_cgContext );
2300 }
2301
2302 void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDouble y )
2303 {
2304     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2305
2306     if (!EnsureIsValid())
2307         return;
2308
2309     if (m_composition == wxCOMPOSITION_DEST)
2310         return;
2311
2312 #if wxOSX_USE_CORE_TEXT
2313     {
2314         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2315         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2316         CTFontRef font = fref->OSXGetCTFont();
2317         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2318 #if 0
2319         // right now there's no way to get continuous underlines, only words, so we emulate it
2320         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
2321         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
2322          CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
2323         CFTypeRef values[] = { font, col, underlined };
2324 #else
2325         CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName };
2326         CFTypeRef values[] = { font, col };
2327 #endif
2328         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2329                                                         WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2330         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2331         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2332
2333         y += CTFontGetAscent(font);
2334
2335         CGContextSaveGState(m_cgContext);
2336         CGAffineTransform textMatrix = CGContextGetTextMatrix(m_cgContext);
2337
2338         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2339         CGContextScaleCTM(m_cgContext, 1, -1);
2340         CGContextSetTextMatrix(m_cgContext, CGAffineTransformIdentity);
2341
2342         CTLineDraw( line, m_cgContext );
2343
2344         if ( fref->GetUnderlined() ) {
2345             //AKT: draw horizontal line 1 pixel thick and with 1 pixel gap under baseline
2346             CGFloat width = CTLineGetTypographicBounds(line, NULL, NULL, NULL);
2347
2348             CGPoint points[] = { {0.0, -2.0},  {width, -2.0} };
2349
2350             CGContextSetStrokeColorWithColor(m_cgContext, col);
2351             CGContextSetShouldAntialias(m_cgContext, false);
2352             CGContextSetLineWidth(m_cgContext, 1.0);
2353             CGContextStrokeLineSegments(m_cgContext, points, 2);
2354         }
2355
2356         CGContextRestoreGState(m_cgContext);
2357         CGContextSetTextMatrix(m_cgContext, textMatrix);
2358         CGColorRelease( col );
2359         CheckInvariants();
2360         return;
2361     }
2362 #endif
2363 #if wxOSX_USE_ATSU_TEXT
2364     {
2365         DrawText(str, x, y, 0.0);
2366         return;
2367     }
2368 #endif
2369 #if wxOSX_USE_IPHONE
2370     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2371
2372     CGContextSaveGState(m_cgContext);
2373
2374     CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2375     CGContextSetTextDrawingMode (m_cgContext, kCGTextFill);
2376     CGContextSetFillColorWithColor( m_cgContext, col );
2377
2378     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2379     DrawTextInContext( m_cgContext, CGPointMake( x, y ), fref->GetUIFont() , text.AsNSString() );
2380
2381     CGContextRestoreGState(m_cgContext);
2382     CFRelease( col );
2383 #endif
2384
2385     CheckInvariants();
2386 }
2387
2388 void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
2389                                                  wxDouble x, wxDouble y,
2390                                                  wxDouble angle)
2391 {
2392     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2393
2394     if (!EnsureIsValid())
2395         return;
2396
2397     if (m_composition == wxCOMPOSITION_DEST)
2398         return;
2399
2400 #if wxOSX_USE_CORE_TEXT
2401     {
2402         // default implementation takes care of rotation and calls non rotated DrawText afterwards
2403         wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2404         return;
2405     }
2406 #endif
2407 #if wxOSX_USE_ATSU_TEXT
2408     {
2409         OSStatus status = noErr;
2410         ATSUTextLayout atsuLayout;
2411         wxMacUniCharBuffer unibuf( str );
2412         UniCharCount chars = unibuf.GetChars();
2413
2414         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2415         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2416                                                    &chars , &style , &atsuLayout );
2417
2418         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
2419
2420         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2421         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2422
2423         int iAngle = int( angle * RAD2DEG );
2424         if ( abs(iAngle) > 0 )
2425         {
2426             Fixed atsuAngle = IntToFixed( iAngle );
2427             ATSUAttributeTag atsuTags[] =
2428             {
2429                 kATSULineRotationTag ,
2430             };
2431             ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2432             {
2433                 sizeof( Fixed ) ,
2434             };
2435             ATSUAttributeValuePtr    atsuValues[WXSIZEOF(atsuTags)] =
2436             {
2437                 &atsuAngle ,
2438             };
2439             status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2440                                              atsuTags, atsuSizes, atsuValues );
2441         }
2442
2443         {
2444             ATSUAttributeTag atsuTags[] =
2445             {
2446                 kATSUCGContextTag ,
2447             };
2448             ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2449             {
2450                 sizeof( CGContextRef ) ,
2451             };
2452             ATSUAttributeValuePtr    atsuValues[WXSIZEOF(atsuTags)] =
2453             {
2454                 &m_cgContext ,
2455             };
2456             status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2457                                              atsuTags, atsuSizes, atsuValues );
2458         }
2459
2460         ATSUTextMeasurement textBefore, textAfter;
2461         ATSUTextMeasurement ascent, descent;
2462
2463         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2464                                             &textBefore , &textAfter, &ascent , &descent );
2465
2466         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2467
2468         Rect rect;
2469         x += (int)(sin(angle) * FixedToFloat(ascent));
2470         y += (int)(cos(angle) * FixedToFloat(ascent));
2471
2472         status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2473                                         IntToFixed(x) , IntToFixed(y) , &rect );
2474         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2475
2476         CGContextSaveGState(m_cgContext);
2477         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2478         CGContextScaleCTM(m_cgContext, 1, -1);
2479         status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2480                                 IntToFixed(0) , IntToFixed(0) );
2481
2482         wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2483
2484         CGContextRestoreGState(m_cgContext);
2485
2486         ::ATSUDisposeTextLayout(atsuLayout);
2487         CheckInvariants();
2488
2489         return;
2490     }
2491 #endif
2492 #if wxOSX_USE_IPHONE
2493     // default implementation takes care of rotation and calls non rotated DrawText afterwards
2494     wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2495 #endif
2496
2497     CheckInvariants();
2498 }
2499
2500 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2501                             wxDouble *descent, wxDouble *externalLeading ) const
2502 {
2503     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::GetTextExtent - no valid font set") );
2504
2505     if ( width )
2506         *width = 0;
2507     if ( height )
2508         *height = 0;
2509     if ( descent )
2510         *descent = 0;
2511     if ( externalLeading )
2512         *externalLeading = 0;
2513
2514     // In wxWidgets (MSW-inspired) API it is possible to call GetTextExtent()
2515     // with an empty string to get just the descent and the leading of the
2516     // font, so support this (mis)use.
2517     wxString strToMeasure(str);
2518     if (str.empty())
2519         strToMeasure = wxS(" ");
2520
2521 #if wxOSX_USE_CORE_TEXT
2522     {
2523         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2524         CTFontRef font = fref->OSXGetCTFont();
2525
2526         wxCFStringRef text(strToMeasure, wxLocale::GetSystemEncoding() );
2527         CFStringRef keys[] = { kCTFontAttributeName  };
2528         CFTypeRef values[] = { font };
2529         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2530                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2531         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2532         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2533
2534         CGFloat a, d, l, w;
2535         w = CTLineGetTypographicBounds(line, &a, &d, &l);
2536
2537         if ( !str.empty() )
2538         {
2539             if ( width )
2540                 *width = w;
2541             if ( height )
2542                 *height = a+d+l;
2543         }
2544
2545         if ( descent )
2546             *descent = d;
2547         if ( externalLeading )
2548             *externalLeading = l;
2549         return;
2550     }
2551 #endif
2552 #if wxOSX_USE_ATSU_TEXT
2553     {
2554         OSStatus status = noErr;
2555
2556         ATSUTextLayout atsuLayout;
2557         wxMacUniCharBuffer unibuf( strToMeasure );
2558         UniCharCount chars = unibuf.GetChars();
2559
2560         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2561         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2562                                                    &chars , &style , &atsuLayout );
2563
2564         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2565
2566         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2567         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2568
2569         ATSUTextMeasurement textBefore, textAfter;
2570         ATSUTextMeasurement textAscent, textDescent;
2571
2572         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2573                                             &textBefore , &textAfter, &textAscent , &textDescent );
2574
2575         if ( !str.empty() )
2576         {
2577             if ( width )
2578                 *width = FixedToFloat(textAfter - textBefore);
2579             if ( height )
2580                 *height = FixedToFloat(textAscent + textDescent);
2581         }
2582
2583         if ( descent )
2584             *descent = FixedToFloat(textDescent);
2585         if ( externalLeading )
2586             *externalLeading = 0;
2587
2588         ::ATSUDisposeTextLayout(atsuLayout);
2589
2590         return;
2591     }
2592 #endif
2593 #if wxOSX_USE_IPHONE
2594     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2595
2596     wxCFStringRef text(strToMeasure, wxLocale::GetSystemEncoding() );
2597     CGSize sz = MeasureTextInContext( fref->GetUIFont() , text.AsNSString() );
2598
2599     if ( !str.empty() )
2600     {
2601         if ( width )
2602             *width = sz.width;
2603         if ( height )
2604             *height = sz.height;
2605     }
2606
2607         /*
2608     if ( descent )
2609         *descent = FixedToFloat(textDescent);
2610     if ( externalLeading )
2611         *externalLeading = 0;
2612         */
2613 #endif
2614
2615     CheckInvariants();
2616 }
2617
2618 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2619 {
2620     widths.Empty();
2621     widths.Add(0, text.length());
2622
2623     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2624
2625     if (text.empty())
2626         return;
2627
2628 #if wxOSX_USE_CORE_TEXT
2629     {
2630         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2631         CTFontRef font = fref->OSXGetCTFont();
2632
2633         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2634         CFStringRef keys[] = { kCTFontAttributeName  };
2635         CFTypeRef values[] = { font };
2636         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2637                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2638         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2639         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2640
2641         int chars = text.length();
2642         for ( int pos = 0; pos < (int)chars; pos ++ )
2643         {
2644             widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL );
2645         }
2646
2647         return;
2648     }
2649 #endif
2650 #if wxOSX_USE_ATSU_TEXT
2651     {
2652         OSStatus status = noErr;
2653         ATSUTextLayout atsuLayout;
2654         wxMacUniCharBuffer unibuf( text );
2655         UniCharCount chars = unibuf.GetChars();
2656
2657         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2658         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2659                                           &chars , &style , &atsuLayout );
2660
2661         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2662
2663         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2664         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2665
2666 // new implementation from JS, keep old one just in case
2667 #if 0
2668         for ( int pos = 0; pos < (int)chars; pos ++ )
2669         {
2670             unsigned long actualNumberOfBounds = 0;
2671             ATSTrapezoid glyphBounds;
2672
2673             // We get a single bound, since the text should only require one. If it requires more, there is an issue
2674             OSStatus result;
2675             result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2676                                         kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2677             if (result != noErr || actualNumberOfBounds != 1 )
2678                 return;
2679
2680             widths[pos] = FixedToFloat( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2681             //unsigned char uch = s[i];
2682         }
2683 #else
2684         ATSLayoutRecord *layoutRecords = NULL;
2685         ItemCount glyphCount = 0;
2686
2687         // Get the glyph extents
2688         OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2689                                                                        0,
2690                                                                        kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2691                                                                        (void **)
2692                                                                        &layoutRecords,
2693                                                                        &glyphCount);
2694         wxASSERT(glyphCount == (text.length()+1));
2695
2696         if ( err == noErr && glyphCount == (text.length()+1))
2697         {
2698             for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2699             {
2700                 widths[pos-1] = FixedToFloat( layoutRecords[pos].realPos );
2701             }
2702         }
2703
2704         ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2705                                               kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2706                                               (void **) &layoutRecords);
2707 #endif
2708         ::ATSUDisposeTextLayout(atsuLayout);
2709     }
2710 #endif
2711 #if wxOSX_USE_IPHONE
2712     // TODO core graphics text implementation here
2713 #endif
2714
2715     CheckInvariants();
2716 }
2717
2718 void * wxMacCoreGraphicsContext::GetNativeContext()
2719 {
2720     return m_cgContext;
2721 }
2722
2723
2724 void wxMacCoreGraphicsContext::DrawRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2725 {
2726     if (!EnsureIsValid())
2727         return;
2728
2729     if (m_composition == wxCOMPOSITION_DEST)
2730         return;
2731
2732     // when using shading, we have to go back to drawing paths
2733     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2734     {
2735         wxGraphicsContext::DrawRectangle( x,y,w,h );
2736         return;
2737     }
2738
2739     CGRect rect = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2740     if ( !m_brush.IsNull() )
2741     {
2742         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2743         CGContextFillRect(m_cgContext, rect);
2744     }
2745
2746     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
2747     if ( !m_pen.IsNull() )
2748     {
2749         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
2750         CGContextStrokeRect(m_cgContext, rect);
2751     }
2752 }
2753
2754 // concatenates this transform with the current transform of this context
2755 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2756 {
2757     if ( m_cgContext )
2758         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2759     else
2760         m_windowTransform = CGAffineTransformConcat(*(CGAffineTransform*) matrix.GetNativeMatrix(), m_windowTransform);
2761 }
2762
2763 // sets the transform of this context
2764 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2765 {
2766     CheckInvariants();
2767     if ( m_cgContext )
2768     {
2769         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2770         transform = CGAffineTransformInvert( transform ) ;
2771         CGContextConcatCTM( m_cgContext, transform);
2772         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2773     }
2774     else
2775     {
2776         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2777     }
2778     CheckInvariants();
2779 }
2780
2781 // gets the matrix of this context
2782 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2783 {
2784     wxGraphicsMatrix m = CreateMatrix();
2785     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2786         CGContextGetCTM( m_cgContext ));
2787     return m;
2788 }
2789
2790
2791 #if wxUSE_IMAGE
2792
2793 // ----------------------------------------------------------------------------
2794 // wxMacCoreGraphicsImageContext
2795 // ----------------------------------------------------------------------------
2796
2797 // This is a GC that can be used to draw on wxImage. In this implementation we
2798 // simply draw on a wxBitmap using wxMemoryDC and then convert it to wxImage in
2799 // the end so it's not especially interesting and exists mainly for
2800 // compatibility with the other platforms.
2801 class wxMacCoreGraphicsImageContext : public wxMacCoreGraphicsContext
2802 {
2803 public:
2804     wxMacCoreGraphicsImageContext(wxGraphicsRenderer* renderer,
2805                                   wxImage& image) :
2806         wxMacCoreGraphicsContext(renderer),
2807         m_image(image),
2808         m_bitmap(image),
2809         m_memDC(m_bitmap)
2810     {
2811         SetNativeContext
2812         (
2813             (CGContextRef)(m_memDC.GetGraphicsContext()->GetNativeContext())
2814         );
2815         m_width = image.GetWidth();
2816         m_height = image.GetHeight();
2817     }
2818
2819     virtual ~wxMacCoreGraphicsImageContext()
2820     {
2821         m_memDC.SelectObject(wxNullBitmap);
2822         m_image = m_bitmap.ConvertToImage();
2823     }
2824
2825 private:
2826     wxImage& m_image;
2827     wxBitmap m_bitmap;
2828     wxMemoryDC m_memDC;
2829 };
2830
2831 #endif // wxUSE_IMAGE
2832
2833 //
2834 // Renderer
2835 //
2836
2837 //-----------------------------------------------------------------------------
2838 // wxMacCoreGraphicsRenderer declaration
2839 //-----------------------------------------------------------------------------
2840
2841 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2842 {
2843 public :
2844     wxMacCoreGraphicsRenderer() {}
2845
2846     virtual ~wxMacCoreGraphicsRenderer() {}
2847
2848     // Context
2849
2850     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2851     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2852 #if wxUSE_PRINTING_ARCHITECTURE
2853     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2854 #endif
2855
2856     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2857
2858     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2859
2860     virtual wxGraphicsContext * CreateContext( wxWindow* window );
2861
2862 #if wxUSE_IMAGE
2863     virtual wxGraphicsContext * CreateContextFromImage(wxImage& image);
2864 #endif // wxUSE_IMAGE
2865
2866     virtual wxGraphicsContext * CreateMeasuringContext();
2867
2868     // Path
2869
2870     virtual wxGraphicsPath CreatePath();
2871
2872     // Matrix
2873
2874     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2875         wxDouble tx=0.0, wxDouble ty=0.0);
2876
2877
2878     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2879
2880     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2881
2882     virtual wxGraphicsBrush
2883     CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
2884                               wxDouble x2, wxDouble y2,
2885                               const wxGraphicsGradientStops& stops);
2886
2887     virtual wxGraphicsBrush
2888     CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
2889                               wxDouble xc, wxDouble yc,
2890                               wxDouble radius,
2891                               const wxGraphicsGradientStops& stops);
2892
2893    // sets the font
2894     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2895     virtual wxGraphicsFont CreateFont(double sizeInPixels,
2896                                       const wxString& facename,
2897                                       int flags = wxFONTFLAG_DEFAULT,
2898                                       const wxColour& col = *wxBLACK);
2899
2900     // create a native bitmap representation
2901     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2902
2903 #if wxUSE_IMAGE
2904     virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image);
2905     virtual wxImage CreateImageFromBitmap(const wxGraphicsBitmap& bmp);
2906 #endif // wxUSE_IMAGE
2907
2908     // create a graphics bitmap from a native bitmap
2909     virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
2910
2911     // create a native bitmap representation
2912     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
2913 private :
2914     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2915 } ;
2916
2917 //-----------------------------------------------------------------------------
2918 // wxMacCoreGraphicsRenderer implementation
2919 //-----------------------------------------------------------------------------
2920
2921 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2922
2923 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2924
2925 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2926 {
2927     return &gs_MacCoreGraphicsRenderer;
2928 }
2929
2930 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2931 {
2932     const wxDCImpl* impl = dc.GetImpl();
2933     wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2934     if (win_impl)
2935     {
2936         int w, h;
2937         win_impl->GetSize( &w, &h );
2938         CGContextRef cgctx = 0;
2939
2940         wxASSERT_MSG(win_impl->GetWindow(), "Invalid wxWindow in wxMacCoreGraphicsRenderer::CreateContext");
2941         if (win_impl->GetWindow())
2942             cgctx =  (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2943
2944         // having a cgctx being NULL is fine (will be created on demand)
2945         // this is the case for all wxWindowDCs except wxPaintDC
2946         wxMacCoreGraphicsContext *context =
2947             new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2948         context->EnableOffset(true);
2949         return context;
2950     }
2951     return NULL;
2952 }
2953
2954 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2955 {
2956 #ifdef __WXMAC__
2957     const wxDCImpl* impl = dc.GetImpl();
2958     wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2959     if (mem_impl)
2960     {
2961         int w, h;
2962         mem_impl->GetSize( &w, &h );
2963         wxMacCoreGraphicsContext* context = new wxMacCoreGraphicsContext( this,
2964             (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2965         context->EnableOffset(true);
2966         return context;
2967     }
2968 #endif
2969     return NULL;
2970 }
2971
2972 #if wxUSE_PRINTING_ARCHITECTURE
2973 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2974 {
2975 #ifdef __WXMAC__
2976     const wxDCImpl* impl = dc.GetImpl();
2977     wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2978     if (print_impl)
2979     {
2980         int w, h;
2981         print_impl->GetSize( &w, &h );
2982         return new wxMacCoreGraphicsContext( this,
2983             (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2984     }
2985 #endif
2986     return NULL;
2987 }
2988 #endif
2989
2990 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2991 {
2992     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2993 }
2994
2995 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2996 {
2997 #if wxOSX_USE_CARBON
2998     wxMacCoreGraphicsContext* context = new wxMacCoreGraphicsContext(this,(WindowRef)window);
2999     context->EnableOffset(true);
3000     return context;
3001 #else
3002     wxUnusedVar(window);
3003     return NULL;
3004 #endif
3005 }
3006
3007 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
3008 {
3009     return new wxMacCoreGraphicsContext(this, window );
3010 }
3011
3012 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
3013 {
3014     return new wxMacCoreGraphicsContext(this);
3015 }
3016
3017 #if wxUSE_IMAGE
3018
3019 wxGraphicsContext*
3020 wxMacCoreGraphicsRenderer::CreateContextFromImage(wxImage& image)
3021 {
3022     return new wxMacCoreGraphicsImageContext(this, image);
3023 }
3024
3025 #endif // wxUSE_IMAGE
3026
3027 // Path
3028
3029 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
3030 {
3031     wxGraphicsPath m;
3032     m.SetRefData( new wxMacCoreGraphicsPathData(this));
3033     return m;
3034 }
3035
3036
3037 // Matrix
3038
3039 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
3040     wxDouble tx, wxDouble ty)
3041 {
3042     wxGraphicsMatrix m;
3043     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
3044     data->Set( a,b,c,d,tx,ty ) ;
3045     m.SetRefData(data);
3046     return m;
3047 }
3048
3049 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
3050 {
3051     if ( !pen.IsOk() || pen.GetStyle() == wxTRANSPARENT )
3052         return wxNullGraphicsPen;
3053     else
3054     {
3055         wxGraphicsPen p;
3056         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
3057         return p;
3058     }
3059 }
3060
3061 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
3062 {
3063     if ( !brush.IsOk() || brush.GetStyle() == wxTRANSPARENT )
3064         return wxNullGraphicsBrush;
3065     else
3066     {
3067         wxGraphicsBrush p;
3068         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
3069         return p;
3070     }
3071 }
3072
3073 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
3074 {
3075     if ( bmp.IsOk() )
3076     {
3077         wxGraphicsBitmap p;
3078         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
3079         return p;
3080     }
3081     else
3082         return wxNullGraphicsBitmap;
3083 }
3084
3085 #if wxUSE_IMAGE
3086
3087 wxGraphicsBitmap
3088 wxMacCoreGraphicsRenderer::CreateBitmapFromImage(const wxImage& image)
3089 {
3090     // We don't have any direct way to convert wxImage to CGImage so pass by
3091     // wxBitmap. This makes this function pretty useless in this implementation
3092     // but it allows to have the same API as with Cairo backend where we can
3093     // convert wxImage to a Cairo surface directly, bypassing wxBitmap.
3094     return CreateBitmap(wxBitmap(image));
3095 }
3096
3097 wxImage wxMacCoreGraphicsRenderer::CreateImageFromBitmap(const wxGraphicsBitmap& bmp)
3098 {
3099     wxMacCoreGraphicsBitmapData* const
3100         data = static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
3101
3102     return data ? data->ConvertToImage() : wxNullImage;
3103 }
3104
3105 #endif // wxUSE_IMAGE
3106
3107 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmapFromNativeBitmap( void* bitmap )
3108 {
3109     if ( bitmap != NULL )
3110     {
3111         wxGraphicsBitmap p;
3112         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , (CGImageRef) bitmap, false ));
3113         return p;
3114     }
3115     else
3116         return wxNullGraphicsBitmap;
3117 }
3118
3119 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
3120 {
3121     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
3122     CGImageRef img = refdata->GetBitmap();
3123     if ( img )
3124     {
3125         wxGraphicsBitmap p;
3126         CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h ));
3127         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg, refdata->IsMonochrome() ) );
3128         return p;
3129     }
3130     else
3131         return wxNullGraphicsBitmap;
3132 }
3133
3134 wxGraphicsBrush
3135 wxMacCoreGraphicsRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
3136                                                      wxDouble x2, wxDouble y2,
3137                                                      const wxGraphicsGradientStops& stops)
3138 {
3139     wxGraphicsBrush p;
3140     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
3141     d->CreateLinearGradientBrush(x1, y1, x2, y2, stops);
3142     p.SetRefData(d);
3143     return p;
3144 }
3145
3146 wxGraphicsBrush
3147 wxMacCoreGraphicsRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
3148                                                      wxDouble xc, wxDouble yc,
3149                                                      wxDouble radius,
3150                                                      const wxGraphicsGradientStops& stops)
3151 {
3152     wxGraphicsBrush p;
3153     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
3154     d->CreateRadialGradientBrush(xo, yo, xc, yc, radius, stops);
3155     p.SetRefData(d);
3156     return p;
3157 }
3158
3159 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
3160 {
3161     if ( font.IsOk() )
3162     {
3163         wxGraphicsFont p;
3164         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
3165         return p;
3166     }
3167     else
3168         return wxNullGraphicsFont;
3169 }
3170
3171 wxGraphicsFont
3172 wxMacCoreGraphicsRenderer::CreateFont(double sizeInPixels,
3173                                       const wxString& facename,
3174                                       int flags,
3175                                       const wxColour& col)
3176 {
3177     // This implementation is not ideal as we don't support fractional font
3178     // sizes right now, but it's the simplest one.
3179     //
3180     // Notice that under Mac we always use 72 DPI so the font size in pixels is
3181     // the same as the font size in points and we can pass it directly to wxFont
3182     // ctor.
3183     wxFont font(wxRound(sizeInPixels),
3184                 wxFONTFAMILY_DEFAULT,
3185                 flags & wxFONTFLAG_ITALIC ? wxFONTSTYLE_ITALIC
3186                                           : wxFONTSTYLE_NORMAL,
3187                 flags & wxFONTFLAG_BOLD ? wxFONTWEIGHT_BOLD
3188                                         : wxFONTWEIGHT_NORMAL,
3189                 (flags & wxFONTFLAG_UNDERLINED) != 0,
3190                 facename);
3191
3192     wxGraphicsFont f;
3193     f.SetRefData(new wxMacCoreGraphicsFontData(this, font, col));
3194     return f;
3195 }
3196
3197 //
3198 // CoreGraphics Helper Methods
3199 //
3200
3201 // Data Providers and Consumers
3202
3203 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
3204 {
3205     CFMutableDataRef data = (CFMutableDataRef) info;
3206     if ( data )
3207     {
3208         CFDataAppendBytes( data, (const UInt8*) bytes, count );
3209     }
3210     return count;
3211 }
3212
3213 void wxMacReleaseCFDataProviderCallback(void *info,
3214                                       const void *WXUNUSED(data),
3215                                       size_t WXUNUSED(count))
3216 {
3217     if ( info )
3218         CFRelease( (CFDataRef) info );
3219 }
3220
3221 void wxMacReleaseCFDataConsumerCallback( void *info )
3222 {
3223     if ( info )
3224         CFRelease( (CFDataRef) info );
3225 }
3226
3227 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
3228 {
3229     if ( data == NULL )
3230         return NULL;
3231
3232     return CGDataProviderCreateWithCFData( data );
3233 }
3234
3235 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
3236 {
3237     if ( data == NULL )
3238         return NULL;
3239
3240     return CGDataConsumerCreateWithCFData( data );
3241 }
3242
3243 void
3244 wxMacReleaseMemoryBufferProviderCallback(void *info,
3245                                          const void * WXUNUSED_UNLESS_DEBUG(data),
3246                                          size_t WXUNUSED(size))
3247 {
3248     wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
3249
3250     wxASSERT( data == membuf->GetData() ) ;
3251
3252     delete membuf ;
3253 }
3254
3255 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
3256 {
3257     wxMemoryBuffer* b = new wxMemoryBuffer( buf );
3258     if ( b->GetDataLen() == 0 )
3259         return NULL;
3260
3261     return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
3262                                                  wxMacReleaseMemoryBufferProviderCallback );
3263 }