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