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