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 wxGraphicsObjectRefData
 973 {
 974 public:
 975     wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome );
 976     ~wxMacCoreGraphicsBitmapData();
 977
 978     virtual CGImageRef GetBitmap() { return m_bitmap; }
 979     bool IsMonochrome() { return m_monochrome; }
 980
 981 #if wxUSE_IMAGE
 982     wxImage ConvertToImage() const
 983     {
 984         return wxBitmap(m_bitmap).ConvertToImage();
 985     }
 986 #endif // wxUSE_IMAGE
 987
 988 private :
 989     CGImageRef m_bitmap;
 990     bool m_monochrome;
 991 };
 992
 993 wxMacCoreGraphicsBitmapData::wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome ) : wxGraphicsObjectRefData( renderer ),
 994     m_bitmap(bitmap), m_monochrome(monochrome)
 995 {
 996 }
 997
 998 wxMacCoreGraphicsBitmapData::~wxMacCoreGraphicsBitmapData()
 999 {
1000     CGImageRelease( m_bitmap );
1001 }
1002
1003
1004 //
1005 // Graphics Matrix
1006 //
1007
1008 //-----------------------------------------------------------------------------
1009 // wxMacCoreGraphicsMatrix declaration
1010 //-----------------------------------------------------------------------------
1011
1012 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
1013 {
1014 public :
1015     wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
1016
1017     virtual ~wxMacCoreGraphicsMatrixData() ;
1018
1019     virtual wxGraphicsObjectRefData *Clone() const ;
1020
1021     // concatenates the matrix
1022     virtual void Concat( const wxGraphicsMatrixData *t );
1023
1024     // sets the matrix to the respective values
1025     virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
1026         wxDouble tx=0.0, wxDouble ty=0.0);
1027
1028     // gets the component valuess of the matrix
1029     virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL,  wxDouble* c=NULL,
1030                      wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
1031
1032     // makes this the inverse matrix
1033     virtual void Invert();
1034
1035     // returns true if the elements of the transformation matrix are equal ?
1036     virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
1037
1038     // return true if this is the identity matrix
1039     virtual bool IsIdentity() const;
1040
1041     //
1042     // transformation
1043     //
1044
1045     // add the translation to this matrix
1046     virtual void Translate( wxDouble dx , wxDouble dy );
1047
1048     // add the scale to this matrix
1049     virtual void Scale( wxDouble xScale , wxDouble yScale );
1050
1051     // add the rotation to this matrix (radians)
1052     virtual void Rotate( wxDouble angle );
1053
1054     //
1055     // apply the transforms
1056     //
1057
1058     // applies that matrix to the point
1059     virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
1060
1061     // applies the matrix except for translations
1062     virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
1063
1064     // returns the native representation
1065     virtual void * GetNativeMatrix() const;
1066
1067 private :
1068     CGAffineTransform m_matrix;
1069 } ;
1070
1071 //-----------------------------------------------------------------------------
1072 // wxMacCoreGraphicsMatrix implementation
1073 //-----------------------------------------------------------------------------
1074
1075 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
1076 {
1077 }
1078
1079 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
1080 {
1081 }
1082
1083 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
1084 {
1085     wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
1086     m->m_matrix = m_matrix ;
1087     return m;
1088 }
1089
1090 // concatenates the matrix
1091 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
1092 {
1093     m_matrix = CGAffineTransformConcat(*((CGAffineTransform*) t->GetNativeMatrix()), m_matrix );
1094 }
1095
1096 // sets the matrix to the respective values
1097 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
1098     wxDouble tx, wxDouble ty)
1099 {
1100     m_matrix = CGAffineTransformMake((CGFloat) a,(CGFloat) b,(CGFloat) c,(CGFloat) d,(CGFloat) tx,(CGFloat) ty);
1101 }
1102
1103 // gets the component valuess of the matrix
1104 void wxMacCoreGraphicsMatrixData::Get(wxDouble* a, wxDouble* b,  wxDouble* c,
1105                                       wxDouble* d, wxDouble* tx, wxDouble* ty) const
1106 {
1107     if (a)  *a = m_matrix.a;
1108     if (b)  *b = m_matrix.b;
1109     if (c)  *c = m_matrix.c;
1110     if (d)  *d = m_matrix.d;
1111     if (tx) *tx= m_matrix.tx;
1112     if (ty) *ty= m_matrix.ty;
1113 }
1114
1115 // makes this the inverse matrix
1116 void wxMacCoreGraphicsMatrixData::Invert()
1117 {
1118     m_matrix = CGAffineTransformInvert( m_matrix );
1119 }
1120
1121 // returns true if the elements of the transformation matrix are equal ?
1122 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
1123 {
1124     return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
1125 }
1126
1127 // return true if this is the identity matrix
1128 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
1129 {
1130     return ( m_matrix.a == 1 && m_matrix.d == 1 &&
1131         m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
1132 }
1133
1134 //
1135 // transformation
1136 //
1137
1138 // add the translation to this matrix
1139 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
1140 {
1141     m_matrix = CGAffineTransformTranslate( m_matrix, (CGFloat) dx, (CGFloat) dy);
1142 }
1143
1144 // add the scale to this matrix
1145 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1146 {
1147     m_matrix = CGAffineTransformScale( m_matrix, (CGFloat) xScale, (CGFloat) yScale);
1148 }
1149
1150 // add the rotation to this matrix (radians)
1151 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
1152 {
1153     m_matrix = CGAffineTransformRotate( m_matrix, (CGFloat) angle);
1154 }
1155
1156 //
1157 // apply the transforms
1158 //
1159
1160 // applies that matrix to the point
1161 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1162 {
1163     CGPoint pt = CGPointApplyAffineTransform( CGPointMake((CGFloat) *x,(CGFloat) *y), m_matrix);
1164
1165     *x = pt.x;
1166     *y = pt.y;
1167 }
1168
1169 // applies the matrix except for translations
1170 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1171 {
1172     CGSize sz = CGSizeApplyAffineTransform( CGSizeMake((CGFloat) *dx,(CGFloat) *dy) , m_matrix );
1173     *dx = sz.width;
1174     *dy = sz.height;
1175 }
1176
1177 // returns the native representation
1178 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
1179 {
1180     return (void*) &m_matrix;
1181 }
1182
1183 //
1184 // Graphics Path
1185 //
1186
1187 //-----------------------------------------------------------------------------
1188 // wxMacCoreGraphicsPath declaration
1189 //-----------------------------------------------------------------------------
1190
1191 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
1192 {
1193 public :
1194     wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
1195
1196     ~wxMacCoreGraphicsPathData();
1197
1198     virtual wxGraphicsObjectRefData *Clone() const;
1199
1200     // begins a new subpath at (x,y)
1201     virtual void MoveToPoint( wxDouble x, wxDouble y );
1202
1203     // adds a straight line from the current point to (x,y)
1204     virtual void AddLineToPoint( wxDouble x, wxDouble y );
1205
1206     // adds a cubic Bezier curve from the current point, using two control points and an end point
1207     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
1208
1209     // closes the current sub-path
1210     virtual void CloseSubpath();
1211
1212     // gets the last point of the current path, (0,0) if not yet set
1213     virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
1214
1215     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1216     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
1217
1218     //
1219     // These are convenience functions which - if not available natively will be assembled
1220     // using the primitives from above
1221     //
1222
1223     // adds a quadratic Bezier curve from the current point, using a control point and an end point
1224     virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
1225
1226     // appends a rectangle as a new closed subpath
1227     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1228
1229     // appends a circle as a new closed subpath
1230     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1231
1232     // appends an ellipsis as a new closed subpath fitting the passed rectangle
1233     virtual void AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
1234
1235     // 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)
1236     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1237
1238     // adds another path
1239     virtual void AddPath( const wxGraphicsPathData* path );
1240
1241     // returns the native path
1242     virtual void * GetNativePath() const { return m_path; }
1243
1244     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1245     virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1246
1247     // transforms each point of this path by the matrix
1248     virtual void Transform( const wxGraphicsMatrixData* matrix );
1249
1250     // gets the bounding box enclosing all points (possibly including control points)
1251     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const;
1252
1253     virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
1254 private :
1255     CGMutablePathRef m_path;
1256 };
1257
1258 //-----------------------------------------------------------------------------
1259 // wxMacCoreGraphicsPath implementation
1260 //-----------------------------------------------------------------------------
1261
1262 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1263 {
1264     if ( path )
1265         m_path = path;
1266     else
1267         m_path = CGPathCreateMutable();
1268 }
1269
1270 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1271 {
1272     CGPathRelease( m_path );
1273 }
1274
1275 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1276 {
1277     wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1278     return clone ;
1279 }
1280
1281
1282 // opens (starts) a new subpath
1283 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1284 {
1285     CGPathMoveToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1286 }
1287
1288 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1289 {
1290     CGPathAddLineToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1291 }
1292
1293 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1294 {
1295     CGPathAddCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) cx2, (CGFloat) cy2, (CGFloat) x , (CGFloat) y );
1296 }
1297
1298 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1299 {
1300     CGPathAddQuadCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) x , (CGFloat) y );
1301 }
1302
1303 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1304 {
1305     CGRect cgRect = { { (CGFloat) x , (CGFloat) y } , { (CGFloat) w , (CGFloat) h } };
1306     CGPathAddRect( m_path , NULL , cgRect );
1307 }
1308
1309 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1310 {
1311     CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x-r,y-r,2*r,2*r));
1312 }
1313
1314 void wxMacCoreGraphicsPathData::AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1315 {
1316     CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x,y,w,h));
1317 }
1318
1319 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1320 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1321 {
1322     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1323     CGPathAddArc( m_path, NULL , (CGFloat) x, (CGFloat) y, (CGFloat) r, (CGFloat) startAngle, (CGFloat) endAngle, !clockwise);
1324 }
1325
1326 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1327 {
1328     CGPathAddArcToPoint( m_path, NULL , (CGFloat) x1, (CGFloat) y1, (CGFloat) x2, (CGFloat) y2, (CGFloat) r);
1329 }
1330
1331 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1332 {
1333     CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1334 }
1335
1336 // closes the current subpath
1337 void wxMacCoreGraphicsPathData::CloseSubpath()
1338 {
1339     CGPathCloseSubpath( m_path );
1340 }
1341
1342 // gets the last point of the current path, (0,0) if not yet set
1343 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1344 {
1345     CGPoint p = CGPathGetCurrentPoint( m_path );
1346     *x = p.x;
1347     *y = p.y;
1348 }
1349
1350 // transforms each point of this path by the matrix
1351 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1352 {
1353     CGMutablePathRef p = CGPathCreateMutable() ;
1354     CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1355     CGPathRelease( m_path );
1356     m_path = p;
1357 }
1358
1359 // gets the bounding box enclosing all points (possibly including control points)
1360 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1361 {
1362     CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1363     *x = bounds.origin.x;
1364     *y = bounds.origin.y;
1365     *w = bounds.size.width;
1366     *h = bounds.size.height;
1367 }
1368
1369 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle) const
1370 {
1371     return CGPathContainsPoint( m_path, NULL, CGPointMake((CGFloat) x,(CGFloat) y), fillStyle == wxODDEVEN_RULE );
1372 }
1373
1374 //
1375 // Graphics Context
1376 //
1377
1378 //-----------------------------------------------------------------------------
1379 // wxMacCoreGraphicsContext declaration
1380 //-----------------------------------------------------------------------------
1381
1382 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1383 {
1384 public:
1385     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1386
1387 #if wxOSX_USE_CARBON
1388     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1389 #endif
1390
1391     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1392
1393     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1394
1395     ~wxMacCoreGraphicsContext();
1396
1397     void Init();
1398
1399     virtual void StartPage( wxDouble width, wxDouble height );
1400
1401     virtual void EndPage();
1402
1403     virtual void Flush();
1404
1405     // push the current state of the context, ie the transformation matrix on a stack
1406     virtual void PushState();
1407
1408     // pops a stored state from the stack
1409     virtual void PopState();
1410
1411     // clips drawings to the region
1412     virtual void Clip( const wxRegion &region );
1413
1414     // clips drawings to the rect
1415     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1416
1417     // resets the clipping to original extent
1418     virtual void ResetClip();
1419
1420     virtual void * GetNativeContext();
1421
1422     virtual bool SetAntialiasMode(wxAntialiasMode antialias);
1423
1424     virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation);
1425
1426     virtual bool SetCompositionMode(wxCompositionMode op);
1427
1428     virtual void BeginLayer(wxDouble opacity);
1429
1430     virtual void EndLayer();
1431
1432     //
1433     // transformation
1434     //
1435
1436     // translate
1437     virtual void Translate( wxDouble dx , wxDouble dy );
1438
1439     // scale
1440     virtual void Scale( wxDouble xScale , wxDouble yScale );
1441
1442     // rotate (radians)
1443     virtual void Rotate( wxDouble angle );
1444
1445     // concatenates this transform with the current transform of this context
1446     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1447
1448     // sets the transform of this context
1449     virtual void SetTransform( const wxGraphicsMatrix& matrix );
1450
1451     // gets the matrix of this context
1452     virtual wxGraphicsMatrix GetTransform() const;
1453     //
1454     // setting the paint
1455     //
1456
1457     // strokes along a path with the current pen
1458     virtual void StrokePath( const wxGraphicsPath &path );
1459
1460     // fills a path with the current brush
1461     virtual void FillPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1462
1463     // draws a path by first filling and then stroking
1464     virtual void DrawPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1465
1466     virtual bool ShouldOffset() const
1467     {
1468         if ( !m_enableOffset )
1469             return false;
1470
1471         int penwidth = 0 ;
1472         if ( !m_pen.IsNull() )
1473         {
1474             penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1475             if ( penwidth == 0 )
1476                 penwidth = 1;
1477         }
1478         return ( penwidth % 2 ) == 1;
1479     }
1480     //
1481     // text
1482     //
1483
1484     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1485         wxDouble *descent, wxDouble *externalLeading ) const;
1486
1487     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1488
1489     //
1490     // image support
1491     //
1492
1493     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1494
1495     virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1496
1497     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1498
1499     // fast convenience methods
1500
1501
1502     virtual void DrawRectangleX( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1503
1504     void SetNativeContext( CGContextRef cg );
1505
1506     wxDECLARE_NO_COPY_CLASS(wxMacCoreGraphicsContext);
1507
1508 private:
1509     bool EnsureIsValid();
1510     void CheckInvariants() const;
1511
1512     virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
1513     virtual void DoDrawRotatedText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1514
1515     CGContextRef m_cgContext;
1516 #if wxOSX_USE_CARBON
1517     WindowRef m_windowRef;
1518 #else
1519     WXWidget m_view;
1520 #endif
1521     bool m_contextSynthesized;
1522     CGAffineTransform m_windowTransform;
1523     bool m_invisible;
1524
1525 #if wxOSX_USE_COCOA_OR_CARBON
1526     wxCFRef<HIShapeRef> m_clipRgn;
1527 #endif
1528 };
1529
1530 //-----------------------------------------------------------------------------
1531 // device context implementation
1532 //
1533 // more and more of the dc functionality should be implemented by calling
1534 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1535 // also coordinate conversions should be moved to native matrix ops
1536 //-----------------------------------------------------------------------------
1537
1538 // we always stock two context states, one at entry, to be able to preserve the
1539 // state we were called with, the other one after changing to HI Graphics orientation
1540 // (this one is used for getting back clippings etc)
1541
1542 //-----------------------------------------------------------------------------
1543 // wxMacCoreGraphicsContext implementation
1544 //-----------------------------------------------------------------------------
1545
1546 class wxQuartzOffsetHelper
1547 {
1548 public :
1549     wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1550     {
1551         m_cg = cg;
1552         m_offset = offset;
1553         if ( m_offset )
1554         {
1555             m_userOffset = CGContextConvertSizeToUserSpace( m_cg, CGSizeMake( 0.5 , 0.5 ) );
1556             CGContextTranslateCTM( m_cg, m_userOffset.width , m_userOffset.height );
1557         }
1558         else
1559         {
1560             m_userOffset = CGSizeMake(0.0, 0.0);
1561         }
1562
1563     }
1564     ~wxQuartzOffsetHelper( )
1565     {
1566         if ( m_offset )
1567             CGContextTranslateCTM( m_cg, -m_userOffset.width , -m_userOffset.height );
1568     }
1569 public :
1570     CGSize m_userOffset;
1571     CGContextRef m_cg;
1572     bool m_offset;
1573 } ;
1574
1575 void wxMacCoreGraphicsContext::Init()
1576 {
1577     m_cgContext = NULL;
1578     m_contextSynthesized = false;
1579     m_width = 0;
1580     m_height = 0;
1581 #if wxOSX_USE_CARBON
1582     m_windowRef = NULL;
1583 #endif
1584 #if wxOSX_USE_COCOA_OR_IPHONE
1585     m_view = NULL;
1586 #endif
1587     m_invisible = false;
1588     m_antialias = wxANTIALIAS_DEFAULT;
1589     m_interpolation = wxINTERPOLATION_DEFAULT;
1590 }
1591
1592 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer)
1593 {
1594     Init();
1595     SetNativeContext(cgcontext);
1596     m_width = width;
1597     m_height = height;
1598 }
1599
1600 #if wxOSX_USE_CARBON
1601 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1602 {
1603     Init();
1604     m_windowRef = window;
1605     m_enableOffset = true;
1606 }
1607 #endif
1608
1609 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1610 {
1611     Init();
1612
1613     m_enableOffset = true;
1614     wxSize sz = window->GetSize();
1615     m_width = sz.x;
1616     m_height = sz.y;
1617
1618 #if wxOSX_USE_COCOA_OR_IPHONE
1619     m_view = window->GetHandle();
1620
1621 #if wxOSX_USE_COCOA
1622     if ( ! window->GetPeer()->IsFlipped() )
1623     {
1624         m_windowTransform = CGAffineTransformMakeTranslation( 0 , m_height );
1625         m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1626     }
1627     else
1628 #endif
1629     {
1630         m_windowTransform = CGAffineTransformIdentity;
1631     }
1632 #else
1633     int originX , originY;
1634     originX = originY = 0;
1635     Rect bounds = { 0,0,0,0 };
1636     m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1637     window->MacWindowToRootWindow( &originX , &originY );
1638     GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1639     m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1640     m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1641     m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1642 #endif
1643 }
1644
1645 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1646 {
1647     Init();
1648 }
1649
1650 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1651 {
1652     SetNativeContext(NULL);
1653 }
1654
1655
1656 void wxMacCoreGraphicsContext::CheckInvariants() const
1657 {
1658     // check invariants here for debugging ...
1659 }
1660
1661
1662
1663 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1664 {
1665     CGRect r;
1666     if ( width != 0 && height != 0)
1667         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) width  , (CGFloat) height );
1668     else
1669         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) m_width  , (CGFloat) m_height );
1670
1671     CGContextBeginPage(m_cgContext,  &r );
1672 //    CGContextTranslateCTM( m_cgContext , 0 ,  height == 0 ? m_height : height );
1673 //    CGContextScaleCTM( m_cgContext , 1 , -1 );
1674 }
1675
1676 void wxMacCoreGraphicsContext::EndPage()
1677 {
1678     CGContextEndPage(m_cgContext);
1679 }
1680
1681 void wxMacCoreGraphicsContext::Flush()
1682 {
1683     CGContextFlush(m_cgContext);
1684 }
1685
1686 bool wxMacCoreGraphicsContext::EnsureIsValid()
1687 {
1688     CheckInvariants();
1689
1690     if ( !m_cgContext )
1691     {
1692         if (m_invisible)
1693             return false;
1694
1695 #if wxOSX_USE_COCOA
1696         if ( wxOSXLockFocus(m_view) )
1697         {
1698             m_cgContext = wxOSXGetContextFromCurrentContext();
1699             wxASSERT_MSG( m_cgContext != NULL, wxT("Unable to retrieve drawing context from View"));
1700         }
1701         else
1702         {
1703             m_invisible = true;
1704         }
1705 #endif
1706 #if wxOSX_USE_IPHONE
1707         m_cgContext = wxOSXGetContextFromCurrentContext();
1708         if ( m_cgContext == NULL )
1709         {
1710             m_invisible = true;
1711         }
1712 #endif
1713 #if wxOSX_USE_CARBON
1714         OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1715         if ( status != noErr )
1716         {
1717             wxFAIL_MSG("Cannot nest wxDCs on the same window");
1718         }
1719 #endif
1720         if ( m_cgContext )
1721         {
1722             CGContextSaveGState( m_cgContext );
1723 #if wxOSX_USE_COCOA_OR_CARBON
1724             if ( m_clipRgn.get() )
1725             {
1726                 wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1727                 // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1728                 if ( HIShapeIsEmpty(hishape))
1729                 {
1730                     CGRect empty = CGRectMake( 0,0,0,0 );
1731                     CGContextClipToRect( m_cgContext, empty );
1732                 }
1733                 else
1734                 {
1735                     HIShapeReplacePathInCGContext( hishape, m_cgContext );
1736                     CGContextClip( m_cgContext );
1737                 }
1738             }
1739 #endif
1740             CGContextConcatCTM( m_cgContext, m_windowTransform );
1741             CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
1742             m_contextSynthesized = true;
1743             CGContextSaveGState( m_cgContext );
1744
1745 #if 0 // turn on for debugging of clientdc
1746             static float color = 0.5 ;
1747             static int channel = 0 ;
1748             CGRect bounds = CGRectMake(-1000,-1000,2000,2000);
1749             CGContextSetRGBFillColor( m_cgContext, channel == 0 ? color : 0.5 ,
1750                 channel == 1 ? color : 0.5 , channel == 2 ? color : 0.5 , 1 );
1751             CGContextFillRect( m_cgContext, bounds );
1752             color += 0.1 ;
1753             if ( color > 0.9 )
1754             {
1755                 color = 0.5 ;
1756                 channel++ ;
1757                 if ( channel == 3 )
1758                     channel = 0 ;
1759             }
1760 #endif
1761         }
1762     }
1763     CheckInvariants();
1764
1765     return m_cgContext != NULL;
1766 }
1767
1768 bool wxMacCoreGraphicsContext::SetAntialiasMode(wxAntialiasMode antialias)
1769 {
1770     if (!EnsureIsValid())
1771         return true;
1772
1773     if (m_antialias == antialias)
1774         return true;
1775
1776     m_antialias = antialias;
1777
1778     bool antialiasMode;
1779     switch (antialias)
1780     {
1781         case wxANTIALIAS_DEFAULT:
1782             antialiasMode = true;
1783             break;
1784         case wxANTIALIAS_NONE:
1785             antialiasMode = false;
1786             break;
1787         default:
1788             return false;
1789     }
1790     CGContextSetShouldAntialias(m_cgContext, antialiasMode);
1791     CheckInvariants();
1792     return true;
1793 }
1794
1795 bool wxMacCoreGraphicsContext::SetInterpolationQuality(wxInterpolationQuality interpolation)
1796 {
1797     if (!EnsureIsValid())
1798         return true;
1799
1800     if (m_interpolation == interpolation)
1801         return true;
1802
1803     m_interpolation = interpolation;
1804     CGInterpolationQuality quality;
1805
1806     switch (interpolation)
1807     {
1808         case wxINTERPOLATION_DEFAULT:
1809             quality = kCGInterpolationDefault;
1810             break;
1811         case wxINTERPOLATION_NONE:
1812             quality = kCGInterpolationNone;
1813             break;
1814         case wxINTERPOLATION_FAST:
1815             quality = kCGInterpolationLow;
1816             break;
1817         case wxINTERPOLATION_GOOD:
1818 #if wxOSX_USE_COCOA_OR_CARBON
1819             quality = UMAGetSystemVersion() < 0x1060 ? kCGInterpolationHigh : (CGInterpolationQuality) 4 /*kCGInterpolationMedium only on 10.6*/;
1820 #else
1821             quality = kCGInterpolationMedium;
1822 #endif
1823             break;
1824         case wxINTERPOLATION_BEST:
1825             quality = kCGInterpolationHigh;
1826             break;
1827         default:
1828             return false;
1829     }
1830     CGContextSetInterpolationQuality(m_cgContext, quality);
1831     CheckInvariants();
1832     return true;
1833 }
1834
1835 bool wxMacCoreGraphicsContext::SetCompositionMode(wxCompositionMode op)
1836 {
1837     if (!EnsureIsValid())
1838         return true;
1839
1840     if ( m_composition == op )
1841         return true;
1842
1843     m_composition = op;
1844
1845     if (m_composition == wxCOMPOSITION_DEST)
1846         return true;
1847
1848 #if wxOSX_USE_COCOA_OR_CARBON
1849     if ( UMAGetSystemVersion() < 0x1060 )
1850     {
1851         CGCompositeOperation cop = kCGCompositeOperationSourceOver;
1852         CGBlendMode mode = kCGBlendModeNormal;
1853         switch( op )
1854         {
1855         case wxCOMPOSITION_CLEAR:
1856             cop = kCGCompositeOperationClear;
1857             break;
1858         case wxCOMPOSITION_SOURCE:
1859             cop = kCGCompositeOperationCopy;
1860             break;
1861         case wxCOMPOSITION_OVER:
1862             mode = kCGBlendModeNormal;
1863             break;
1864         case wxCOMPOSITION_IN:
1865             cop = kCGCompositeOperationSourceIn;
1866             break;
1867         case wxCOMPOSITION_OUT:
1868             cop = kCGCompositeOperationSourceOut;
1869             break;
1870         case wxCOMPOSITION_ATOP:
1871             cop = kCGCompositeOperationSourceAtop;
1872             break;
1873         case wxCOMPOSITION_DEST_OVER:
1874             cop = kCGCompositeOperationDestinationOver;
1875             break;
1876         case wxCOMPOSITION_DEST_IN:
1877             cop = kCGCompositeOperationDestinationIn;
1878             break;
1879         case wxCOMPOSITION_DEST_OUT:
1880             cop = kCGCompositeOperationDestinationOut;
1881             break;
1882         case wxCOMPOSITION_DEST_ATOP:
1883            cop = kCGCompositeOperationDestinationAtop;
1884             break;
1885         case wxCOMPOSITION_XOR:
1886             cop = kCGCompositeOperationXOR;
1887             break;
1888 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1889         case wxCOMPOSITION_ADD:
1890             mode = kCGBlendModePlusLighter ;
1891             break;
1892 #endif
1893         default:
1894             return false;
1895         }
1896         if ( cop != kCGCompositeOperationSourceOver )
1897             CGContextSetCompositeOperation(m_cgContext, cop);
1898         else
1899             CGContextSetBlendMode(m_cgContext, mode);
1900     }
1901 #endif
1902 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1903     else
1904     {
1905         CGBlendMode mode = kCGBlendModeNormal;
1906         switch( op )
1907         {
1908         case wxCOMPOSITION_CLEAR:
1909             mode = kCGBlendModeClear;
1910             break;
1911         case wxCOMPOSITION_SOURCE:
1912             mode = kCGBlendModeCopy;
1913             break;
1914         case wxCOMPOSITION_OVER:
1915             mode = kCGBlendModeNormal;
1916             break;
1917         case wxCOMPOSITION_IN:
1918             mode = kCGBlendModeSourceIn;
1919             break;
1920         case wxCOMPOSITION_OUT:
1921             mode = kCGBlendModeSourceOut;
1922             break;
1923         case wxCOMPOSITION_ATOP:
1924             mode = kCGBlendModeSourceAtop;
1925             break;
1926         case wxCOMPOSITION_DEST_OVER:
1927             mode = kCGBlendModeDestinationOver;
1928             break;
1929         case wxCOMPOSITION_DEST_IN:
1930             mode = kCGBlendModeDestinationIn;
1931             break;
1932         case wxCOMPOSITION_DEST_OUT:
1933             mode = kCGBlendModeDestinationOut;
1934             break;
1935         case wxCOMPOSITION_DEST_ATOP:
1936            mode = kCGBlendModeDestinationAtop;
1937             break;
1938         case wxCOMPOSITION_XOR:
1939             mode = kCGBlendModeXOR;
1940             break;
1941
1942         case wxCOMPOSITION_ADD:
1943             mode = kCGBlendModePlusLighter ;
1944             break;
1945         default:
1946             return false;
1947         }
1948         CGContextSetBlendMode(m_cgContext, mode);
1949     }
1950 #endif
1951     CheckInvariants();
1952     return true;
1953 }
1954
1955 void wxMacCoreGraphicsContext::BeginLayer(wxDouble opacity)
1956 {
1957     CheckInvariants();
1958     CGContextSaveGState(m_cgContext);
1959     CGContextSetAlpha(m_cgContext, (CGFloat) opacity);
1960     CGContextBeginTransparencyLayer(m_cgContext, 0);
1961     CheckInvariants();
1962 }
1963
1964 void wxMacCoreGraphicsContext::EndLayer()
1965 {
1966     CheckInvariants();
1967     CGContextEndTransparencyLayer(m_cgContext);
1968     CGContextRestoreGState(m_cgContext);
1969     CheckInvariants();
1970 }
1971
1972 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1973 {
1974     CheckInvariants();
1975 #if wxOSX_USE_COCOA_OR_CARBON
1976     if( m_cgContext )
1977     {
1978         wxCFRef<HIShapeRef> shape = wxCFRefFromGet(region.GetWXHRGN());
1979         // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1980         if ( HIShapeIsEmpty(shape))
1981         {
1982             CGRect empty = CGRectMake( 0,0,0,0 );
1983             CGContextClipToRect( m_cgContext, empty );
1984         }
1985         else
1986         {
1987             HIShapeReplacePathInCGContext( shape, m_cgContext );
1988             CGContextClip( m_cgContext );
1989         }
1990     }
1991     else
1992     {
1993         // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1994         // to regions we try at least to have correct translations
1995         HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1996
1997         CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1998         HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1999         m_clipRgn.reset(mutableShape);
2000     }
2001 #else
2002     // allow usage as measuring context
2003     // wxASSERT_MSG( m_cgContext != NULL, "Needs a valid context for clipping" );
2004 #endif
2005     CheckInvariants();
2006 }
2007
2008 // clips drawings to the rect
2009 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2010 {
2011     CheckInvariants();
2012     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2013     if ( m_cgContext )
2014     {
2015         CGContextClipToRect( m_cgContext, r );
2016     }
2017     else
2018     {
2019 #if wxOSX_USE_COCOA_OR_CARBON
2020         // the clipping itself must be stored as device coordinates, otherwise
2021         // we cannot apply it back correctly
2022         r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
2023         r.size= CGSizeApplyAffineTransform(r.size, m_windowTransform);
2024         m_clipRgn.reset(HIShapeCreateWithRect(&r));
2025 #else
2026     // allow usage as measuring context
2027     // wxFAIL_MSG( "Needs a valid context for clipping" );
2028 #endif
2029     }
2030     CheckInvariants();
2031 }
2032
2033     // resets the clipping to original extent
2034 void wxMacCoreGraphicsContext::ResetClip()
2035 {
2036     if ( m_cgContext )
2037     {
2038         // there is no way for clearing the clip, we can only revert to the stored
2039         // state, but then we have to make sure everything else is NOT restored
2040         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2041         CGContextRestoreGState( m_cgContext );
2042         CGContextSaveGState( m_cgContext );
2043         CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
2044         transformNew = CGAffineTransformInvert( transformNew ) ;
2045         CGContextConcatCTM( m_cgContext, transformNew);
2046         CGContextConcatCTM( m_cgContext, transform);
2047     }
2048     else
2049     {
2050 #if wxOSX_USE_COCOA_OR_CARBON
2051         m_clipRgn.reset();
2052 #else
2053     // allow usage as measuring context
2054     // wxFAIL_MSG( "Needs a valid context for clipping" );
2055 #endif
2056     }
2057     CheckInvariants();
2058 }
2059
2060 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
2061 {
2062     if ( m_pen.IsNull() )
2063         return ;
2064
2065     if (!EnsureIsValid())
2066         return;
2067
2068     if (m_composition == wxCOMPOSITION_DEST)
2069         return;
2070
2071     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
2072
2073     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
2074     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2075     CGContextStrokePath( m_cgContext );
2076
2077     CheckInvariants();
2078 }
2079
2080 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
2081 {
2082     if (!EnsureIsValid())
2083         return;
2084
2085     if (m_composition == wxCOMPOSITION_DEST)
2086         return;
2087
2088     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2089     {
2090         // when using shading, we cannot draw pen and brush at the same time
2091         // revert to the base implementation of first filling and then stroking
2092         wxGraphicsContext::DrawPath( path, fillStyle );
2093         return;
2094     }
2095
2096     CGPathDrawingMode mode = kCGPathFill ;
2097     if ( m_brush.IsNull() )
2098     {
2099         if ( m_pen.IsNull() )
2100             return;
2101         else
2102             mode = kCGPathStroke;
2103     }
2104     else
2105     {
2106         if ( m_pen.IsNull() )
2107         {
2108             if ( fillStyle == wxODDEVEN_RULE )
2109                 mode = kCGPathEOFill;
2110             else
2111                 mode = kCGPathFill;
2112         }
2113         else
2114         {
2115             if ( fillStyle == wxODDEVEN_RULE )
2116                 mode = kCGPathEOFillStroke;
2117             else
2118                 mode = kCGPathFillStroke;
2119         }
2120     }
2121
2122     if ( !m_brush.IsNull() )
2123         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2124     if ( !m_pen.IsNull() )
2125         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
2126
2127     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
2128
2129     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2130     CGContextDrawPath( m_cgContext , mode );
2131
2132     CheckInvariants();
2133 }
2134
2135 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
2136 {
2137     if ( m_brush.IsNull() )
2138         return;
2139
2140     if (!EnsureIsValid())
2141         return;
2142
2143     if (m_composition == wxCOMPOSITION_DEST)
2144         return;
2145
2146     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2147     {
2148         CGContextSaveGState( m_cgContext );
2149         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2150         CGContextClip( m_cgContext );
2151         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2152         CGContextRestoreGState( m_cgContext);
2153     }
2154     else
2155     {
2156         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2157         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2158         if ( fillStyle == wxODDEVEN_RULE )
2159             CGContextEOFillPath( m_cgContext );
2160         else
2161             CGContextFillPath( m_cgContext );
2162     }
2163
2164     CheckInvariants();
2165 }
2166
2167 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
2168 {
2169     // we allow either setting or clearing but not replacing
2170     wxASSERT( m_cgContext == NULL || cg == NULL );
2171
2172     if ( m_cgContext )
2173     {
2174         CheckInvariants();
2175         CGContextRestoreGState( m_cgContext );
2176         CGContextRestoreGState( m_cgContext );
2177         if ( m_contextSynthesized )
2178         {
2179 #if wxOSX_USE_CARBON
2180             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
2181 #endif
2182 #if wxOSX_USE_COCOA
2183             wxOSXUnlockFocus(m_view);
2184 #endif
2185         }
2186         else
2187             CGContextRelease(m_cgContext);
2188     }
2189
2190     m_cgContext = cg;
2191
2192     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
2193     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
2194     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
2195     // for this one operation.
2196
2197     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
2198     // can be removed.
2199     if (m_cgContext)
2200     {
2201         CGContextRetain(m_cgContext);
2202         CGContextSaveGState( m_cgContext );
2203         CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
2204         CGContextSaveGState( m_cgContext );
2205         m_contextSynthesized = false;
2206     }
2207 }
2208
2209 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
2210 {
2211     if ( m_cgContext )
2212         CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
2213     else
2214         m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
2215 }
2216
2217 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
2218 {
2219     if ( m_cgContext )
2220         CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
2221     else
2222         m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
2223 }
2224
2225 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
2226 {
2227     if ( m_cgContext )
2228         CGContextRotateCTM( m_cgContext , (CGFloat) angle );
2229     else
2230         m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
2231 }
2232
2233 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2234 {
2235     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
2236     DrawBitmap(bitmap, x, y, w, h);
2237 }
2238
2239 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2240 {
2241     if (!EnsureIsValid())
2242         return;
2243
2244     if (m_composition == wxCOMPOSITION_DEST)
2245         return;
2246
2247 #ifdef __WXMAC__
2248     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2249     CGImageRef image = refdata->GetBitmap();
2250     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2251     if ( refdata->IsMonochrome() == 1 )
2252     {
2253         // is a mask, the '1' in the mask tell where to draw the current brush
2254         if (  !m_brush.IsNull() )
2255         {
2256             if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2257             {
2258                 // TODO clip to mask
2259             /*
2260                 CGContextSaveGState( m_cgContext );
2261                 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2262                 CGContextClip( m_cgContext );
2263                 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2264                 CGContextRestoreGState( m_cgContext);
2265             */
2266             }
2267             else
2268             {
2269                 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2270                 wxMacDrawCGImage( m_cgContext , &r , image );
2271             }
2272         }
2273     }
2274     else
2275     {
2276         wxMacDrawCGImage( m_cgContext , &r , image );
2277     }
2278 #endif
2279
2280     CheckInvariants();
2281 }
2282
2283 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2284 {
2285     if (!EnsureIsValid())
2286         return;
2287
2288     if (m_composition == wxCOMPOSITION_DEST)
2289         return;
2290
2291     CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
2292     CGContextSaveGState( m_cgContext );
2293     CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
2294     CGContextScaleCTM( m_cgContext, 1, -1 );
2295 #if wxOSX_USE_COCOA_OR_CARBON
2296     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
2297         NULL , kPlotIconRefNormalFlags , icon.GetHICON() );
2298 #endif
2299     CGContextRestoreGState( m_cgContext );
2300
2301     CheckInvariants();
2302 }
2303
2304 void wxMacCoreGraphicsContext::PushState()
2305 {
2306     if (!EnsureIsValid())
2307         return;
2308
2309     CGContextSaveGState( m_cgContext );
2310 }
2311
2312 void wxMacCoreGraphicsContext::PopState()
2313 {
2314     if (!EnsureIsValid())
2315         return;
2316
2317     CGContextRestoreGState( m_cgContext );
2318 }
2319
2320 void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDouble y )
2321 {
2322     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2323
2324     if (!EnsureIsValid())
2325         return;
2326
2327     if (m_composition == wxCOMPOSITION_DEST)
2328         return;
2329
2330 #if wxOSX_USE_CORE_TEXT
2331     if ( UMAGetSystemVersion() >= 0x1050 )
2332     {
2333         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2334         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2335         CTFontRef font = fref->OSXGetCTFont();
2336         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2337 #if 0
2338         // right now there's no way to get continuous underlines, only words, so we emulate it
2339         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
2340         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
2341          CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
2342         CFTypeRef values[] = { font, col, underlined };
2343 #else
2344         CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName };
2345         CFTypeRef values[] = { font, col };
2346 #endif
2347         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2348                                                         WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2349         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2350         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2351
2352         y += CTFontGetAscent(font);
2353
2354         CGContextSaveGState(m_cgContext);
2355         CGAffineTransform textMatrix = CGContextGetTextMatrix(m_cgContext);
2356
2357         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2358         CGContextScaleCTM(m_cgContext, 1, -1);
2359         CGContextSetTextMatrix(m_cgContext, CGAffineTransformIdentity);
2360
2361         CTLineDraw( line, m_cgContext );
2362
2363         if ( fref->GetUnderlined() ) {
2364             //AKT: draw horizontal line 1 pixel thick and with 1 pixel gap under baseline
2365             CGFloat width = CTLineGetTypographicBounds(line, NULL, NULL, NULL);
2366
2367             CGPoint points[] = { {0.0, -2.0},  {width, -2.0} };
2368
2369             CGContextSetStrokeColorWithColor(m_cgContext, col);
2370             CGContextSetShouldAntialias(m_cgContext, false);
2371             CGContextSetLineWidth(m_cgContext, 1.0);
2372             CGContextStrokeLineSegments(m_cgContext, points, 2);
2373         }
2374
2375         CGContextRestoreGState(m_cgContext);
2376         CGContextSetTextMatrix(m_cgContext, textMatrix);
2377         CFRelease( col );
2378         CheckInvariants();
2379         return;
2380     }
2381 #endif
2382 #if wxOSX_USE_ATSU_TEXT
2383     {
2384         DrawText(str, x, y, 0.0);
2385         return;
2386     }
2387 #endif
2388 #if wxOSX_USE_IPHONE
2389     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2390
2391     CGContextSaveGState(m_cgContext);
2392
2393     CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2394     CGContextSetTextDrawingMode (m_cgContext, kCGTextFill);
2395     CGContextSetFillColorWithColor( m_cgContext, col );
2396
2397     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2398     DrawTextInContext( m_cgContext, CGPointMake( x, y ), fref->GetUIFont() , text.AsNSString() );
2399
2400     CGContextRestoreGState(m_cgContext);
2401     CFRelease( col );
2402 #endif
2403
2404     CheckInvariants();
2405 }
2406
2407 void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
2408                                                  wxDouble x, wxDouble y,
2409                                                  wxDouble angle)
2410 {
2411     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2412
2413     if (!EnsureIsValid())
2414         return;
2415
2416     if (m_composition == wxCOMPOSITION_DEST)
2417         return;
2418
2419 #if wxOSX_USE_CORE_TEXT
2420     if ( UMAGetSystemVersion() >= 0x1050 )
2421     {
2422         // default implementation takes care of rotation and calls non rotated DrawText afterwards
2423         wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2424         return;
2425     }
2426 #endif
2427 #if wxOSX_USE_ATSU_TEXT
2428     {
2429         OSStatus status = noErr;
2430         ATSUTextLayout atsuLayout;
2431         wxMacUniCharBuffer unibuf( str );
2432         UniCharCount chars = unibuf.GetChars();
2433
2434         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2435         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2436                                                    &chars , &style , &atsuLayout );
2437
2438         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
2439
2440         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2441         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2442
2443         int iAngle = int( angle * RAD2DEG );
2444         if ( abs(iAngle) > 0 )
2445         {
2446             Fixed atsuAngle = IntToFixed( iAngle );
2447             ATSUAttributeTag atsuTags[] =
2448             {
2449                 kATSULineRotationTag ,
2450             };
2451             ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2452             {
2453                 sizeof( Fixed ) ,
2454             };
2455             ATSUAttributeValuePtr    atsuValues[WXSIZEOF(atsuTags)] =
2456             {
2457                 &atsuAngle ,
2458             };
2459             status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2460                                              atsuTags, atsuSizes, atsuValues );
2461         }
2462
2463         {
2464             ATSUAttributeTag atsuTags[] =
2465             {
2466                 kATSUCGContextTag ,
2467             };
2468             ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2469             {
2470                 sizeof( CGContextRef ) ,
2471             };
2472             ATSUAttributeValuePtr    atsuValues[WXSIZEOF(atsuTags)] =
2473             {
2474                 &m_cgContext ,
2475             };
2476             status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2477                                              atsuTags, atsuSizes, atsuValues );
2478         }
2479
2480         ATSUTextMeasurement textBefore, textAfter;
2481         ATSUTextMeasurement ascent, descent;
2482
2483         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2484                                             &textBefore , &textAfter, &ascent , &descent );
2485
2486         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2487
2488         Rect rect;
2489         x += (int)(sin(angle) * FixedToFloat(ascent));
2490         y += (int)(cos(angle) * FixedToFloat(ascent));
2491
2492         status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2493                                         IntToFixed(x) , IntToFixed(y) , &rect );
2494         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2495
2496         CGContextSaveGState(m_cgContext);
2497         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2498         CGContextScaleCTM(m_cgContext, 1, -1);
2499         status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2500                                 IntToFixed(0) , IntToFixed(0) );
2501
2502         wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2503
2504         CGContextRestoreGState(m_cgContext);
2505
2506         ::ATSUDisposeTextLayout(atsuLayout);
2507         CheckInvariants();
2508
2509         return;
2510     }
2511 #endif
2512 #if wxOSX_USE_IPHONE
2513     // default implementation takes care of rotation and calls non rotated DrawText afterwards
2514     wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2515 #endif
2516
2517     CheckInvariants();
2518 }
2519
2520 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2521                             wxDouble *descent, wxDouble *externalLeading ) const
2522 {
2523     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::GetTextExtent - no valid font set") );
2524
2525     if ( width )
2526         *width = 0;
2527     if ( height )
2528         *height = 0;
2529     if ( descent )
2530         *descent = 0;
2531     if ( externalLeading )
2532         *externalLeading = 0;
2533
2534     if (str.empty())
2535         return;
2536
2537 #if wxOSX_USE_CORE_TEXT
2538     if ( UMAGetSystemVersion() >= 0x1050 )
2539     {
2540         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2541         CTFontRef font = fref->OSXGetCTFont();
2542
2543         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2544         CFStringRef keys[] = { kCTFontAttributeName  };
2545         CFTypeRef values[] = { font };
2546         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2547                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2548         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2549         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2550
2551         CGFloat a, d, l, w;
2552         w = CTLineGetTypographicBounds(line, &a, &d, &l);
2553
2554         if ( height )
2555             *height = a+d+l;
2556         if ( descent )
2557             *descent = d;
2558         if ( externalLeading )
2559             *externalLeading = l;
2560         if ( width )
2561             *width = w;
2562         return;
2563     }
2564 #endif
2565 #if wxOSX_USE_ATSU_TEXT
2566     {
2567         OSStatus status = noErr;
2568
2569         ATSUTextLayout atsuLayout;
2570         wxMacUniCharBuffer unibuf( str );
2571         UniCharCount chars = unibuf.GetChars();
2572
2573         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2574         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2575                                                    &chars , &style , &atsuLayout );
2576
2577         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2578
2579         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2580         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2581
2582         ATSUTextMeasurement textBefore, textAfter;
2583         ATSUTextMeasurement textAscent, textDescent;
2584
2585         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2586                                             &textBefore , &textAfter, &textAscent , &textDescent );
2587
2588         if ( height )
2589             *height = FixedToFloat(textAscent + textDescent);
2590         if ( descent )
2591             *descent = FixedToFloat(textDescent);
2592         if ( externalLeading )
2593             *externalLeading = 0;
2594         if ( width )
2595             *width = FixedToFloat(textAfter - textBefore);
2596
2597         ::ATSUDisposeTextLayout(atsuLayout);
2598
2599         return;
2600     }
2601 #endif
2602 #if wxOSX_USE_IPHONE
2603     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2604
2605     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2606     CGSize sz = MeasureTextInContext( fref->GetUIFont() , text.AsNSString() );
2607
2608     if ( height )
2609         *height = sz.height;
2610         /*
2611     if ( descent )
2612         *descent = FixedToFloat(textDescent);
2613     if ( externalLeading )
2614         *externalLeading = 0;
2615         */
2616     if ( width )
2617         *width = sz.width;
2618 #endif
2619
2620     CheckInvariants();
2621 }
2622
2623 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2624 {
2625     widths.Empty();
2626     widths.Add(0, text.length());
2627
2628     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2629
2630     if (text.empty())
2631         return;
2632
2633 #if wxOSX_USE_CORE_TEXT
2634     {
2635         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2636         CTFontRef font = fref->OSXGetCTFont();
2637
2638         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2639         CFStringRef keys[] = { kCTFontAttributeName  };
2640         CFTypeRef values[] = { font };
2641         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2642                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2643         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2644         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2645
2646         int chars = text.length();
2647         for ( int pos = 0; pos < (int)chars; pos ++ )
2648         {
2649             widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL );
2650         }
2651
2652         return;
2653     }
2654 #endif
2655 #if wxOSX_USE_ATSU_TEXT
2656     {
2657         OSStatus status = noErr;
2658         ATSUTextLayout atsuLayout;
2659         wxMacUniCharBuffer unibuf( text );
2660         UniCharCount chars = unibuf.GetChars();
2661
2662         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2663         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2664                                           &chars , &style , &atsuLayout );
2665
2666         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2667
2668         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2669         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2670
2671 // new implementation from JS, keep old one just in case
2672 #if 0
2673         for ( int pos = 0; pos < (int)chars; pos ++ )
2674         {
2675             unsigned long actualNumberOfBounds = 0;
2676             ATSTrapezoid glyphBounds;
2677
2678             // We get a single bound, since the text should only require one. If it requires more, there is an issue
2679             OSStatus result;
2680             result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2681                                         kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2682             if (result != noErr || actualNumberOfBounds != 1 )
2683                 return;
2684
2685             widths[pos] = FixedToFloat( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2686             //unsigned char uch = s[i];
2687         }
2688 #else
2689         ATSLayoutRecord *layoutRecords = NULL;
2690         ItemCount glyphCount = 0;
2691
2692         // Get the glyph extents
2693         OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2694                                                                        0,
2695                                                                        kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2696                                                                        (void **)
2697                                                                        &layoutRecords,
2698                                                                        &glyphCount);
2699         wxASSERT(glyphCount == (text.length()+1));
2700
2701         if ( err == noErr && glyphCount == (text.length()+1))
2702         {
2703             for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2704             {
2705                 widths[pos-1] = FixedToFloat( layoutRecords[pos].realPos );
2706             }
2707         }
2708
2709         ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2710                                               kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2711                                               (void **) &layoutRecords);
2712 #endif
2713         ::ATSUDisposeTextLayout(atsuLayout);
2714     }
2715 #endif
2716 #if wxOSX_USE_IPHONE
2717     // TODO core graphics text implementation here
2718 #endif
2719
2720     CheckInvariants();
2721 }
2722
2723 void * wxMacCoreGraphicsContext::GetNativeContext()
2724 {
2725     return m_cgContext;
2726 }
2727
2728
2729 void wxMacCoreGraphicsContext::DrawRectangleX( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2730 {
2731     if (m_composition == wxCOMPOSITION_DEST)
2732         return;
2733
2734     CGRect rect = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2735     if ( !m_brush.IsNull() )
2736     {
2737         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2738         CGContextFillRect(m_cgContext, rect);
2739     }
2740
2741     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
2742     if ( !m_pen.IsNull() )
2743     {
2744         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
2745         CGContextStrokeRect(m_cgContext, rect);
2746     }
2747 }
2748
2749 // concatenates this transform with the current transform of this context
2750 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2751 {
2752     if ( m_cgContext )
2753         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2754     else
2755         m_windowTransform = CGAffineTransformConcat(*(CGAffineTransform*) matrix.GetNativeMatrix(), m_windowTransform);
2756 }
2757
2758 // sets the transform of this context
2759 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2760 {
2761     CheckInvariants();
2762     if ( m_cgContext )
2763     {
2764         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2765         transform = CGAffineTransformInvert( transform ) ;
2766         CGContextConcatCTM( m_cgContext, transform);
2767         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2768     }
2769     else
2770     {
2771         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2772     }
2773     CheckInvariants();
2774 }
2775
2776 // gets the matrix of this context
2777 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2778 {
2779     wxGraphicsMatrix m = CreateMatrix();
2780     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2781         CGContextGetCTM( m_cgContext ));
2782     return m;
2783 }
2784
2785
2786 #if wxUSE_IMAGE
2787
2788 // ----------------------------------------------------------------------------
2789 // wxMacCoreGraphicsImageContext
2790 // ----------------------------------------------------------------------------
2791
2792 // This is a GC that can be used to draw on wxImage. In this implementation we
2793 // simply draw on a wxBitmap using wxMemoryDC and then convert it to wxImage in
2794 // the end so it's not especially interesting and exists mainly for
2795 // compatibility with the other platforms.
2796 class wxMacCoreGraphicsImageContext : public wxMacCoreGraphicsContext
2797 {
2798 public:
2799     wxMacCoreGraphicsImageContext(wxGraphicsRenderer* renderer,
2800                                   wxImage& image) :
2801         wxMacCoreGraphicsContext(renderer),
2802         m_image(image),
2803         m_bitmap(image),
2804         m_memDC(m_bitmap)
2805     {
2806         SetNativeContext
2807         (
2808             (CGContextRef)(m_memDC.GetGraphicsContext()->GetNativeContext())
2809         );
2810         m_width = image.GetWidth();
2811         m_height = image.GetHeight();
2812     }
2813
2814     virtual ~wxMacCoreGraphicsImageContext()
2815     {
2816         m_memDC.SelectObject(wxNullBitmap);
2817         m_image = m_bitmap.ConvertToImage();
2818     }
2819
2820 private:
2821     wxImage& m_image;
2822     wxBitmap m_bitmap;
2823     wxMemoryDC m_memDC;
2824 };
2825
2826 #endif // wxUSE_IMAGE
2827
2828 //
2829 // Renderer
2830 //
2831
2832 //-----------------------------------------------------------------------------
2833 // wxMacCoreGraphicsRenderer declaration
2834 //-----------------------------------------------------------------------------
2835
2836 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2837 {
2838 public :
2839     wxMacCoreGraphicsRenderer() {}
2840
2841     virtual ~wxMacCoreGraphicsRenderer() {}
2842
2843     // Context
2844
2845     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2846     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2847 #if wxUSE_PRINTING_ARCHITECTURE
2848     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2849 #endif
2850
2851     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2852
2853     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2854
2855     virtual wxGraphicsContext * CreateContext( wxWindow* window );
2856
2857 #if wxUSE_IMAGE
2858     virtual wxGraphicsContext * CreateContextFromImage(wxImage& image);
2859 #endif // wxUSE_IMAGE
2860
2861     virtual wxGraphicsContext * CreateMeasuringContext();
2862
2863     // Path
2864
2865     virtual wxGraphicsPath CreatePath();
2866
2867     // Matrix
2868
2869     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2870         wxDouble tx=0.0, wxDouble ty=0.0);
2871
2872
2873     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2874
2875     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2876
2877     virtual wxGraphicsBrush
2878     CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
2879                               wxDouble x2, wxDouble y2,
2880                               const wxGraphicsGradientStops& stops);
2881
2882     virtual wxGraphicsBrush
2883     CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
2884                               wxDouble xc, wxDouble yc,
2885                               wxDouble radius,
2886                               const wxGraphicsGradientStops& stops);
2887
2888    // sets the font
2889     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2890     virtual wxGraphicsFont CreateFont(double sizeInPixels,
2891                                       const wxString& facename,
2892                                       int flags = wxFONTFLAG_DEFAULT,
2893                                       const wxColour& col = *wxBLACK);
2894
2895     // create a native bitmap representation
2896     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2897
2898 #if wxUSE_IMAGE
2899     virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image);
2900     virtual wxImage CreateImageFromBitmap(const wxGraphicsBitmap& bmp);
2901 #endif // wxUSE_IMAGE
2902
2903     // create a graphics bitmap from a native bitmap
2904     virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
2905
2906     // create a native bitmap representation
2907     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
2908 private :
2909     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2910 } ;
2911
2912 //-----------------------------------------------------------------------------
2913 // wxMacCoreGraphicsRenderer implementation
2914 //-----------------------------------------------------------------------------
2915
2916 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2917
2918 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2919
2920 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2921 {
2922     return &gs_MacCoreGraphicsRenderer;
2923 }
2924
2925 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2926 {
2927     const wxDCImpl* impl = dc.GetImpl();
2928     wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2929     if (win_impl)
2930     {
2931         int w, h;
2932         win_impl->GetSize( &w, &h );
2933         CGContextRef cgctx = 0;
2934
2935         wxASSERT_MSG(win_impl->GetWindow(), "Invalid wxWindow in wxMacCoreGraphicsRenderer::CreateContext");
2936         if (win_impl->GetWindow())
2937             cgctx =  (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2938
2939         // having a cgctx being NULL is fine (will be created on demand)
2940         // this is the case for all wxWindowDCs except wxPaintDC
2941         wxMacCoreGraphicsContext *context =
2942             new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2943         context->EnableOffset(true);
2944         return context;
2945     }
2946     return NULL;
2947 }
2948
2949 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2950 {
2951 #ifdef __WXMAC__
2952     const wxDCImpl* impl = dc.GetImpl();
2953     wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2954     if (mem_impl)
2955     {
2956         int w, h;
2957         mem_impl->GetSize( &w, &h );
2958         wxMacCoreGraphicsContext* context = new wxMacCoreGraphicsContext( this,
2959             (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2960         context->EnableOffset(true);
2961         return context;
2962     }
2963 #endif
2964     return NULL;
2965 }
2966
2967 #if wxUSE_PRINTING_ARCHITECTURE
2968 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2969 {
2970 #ifdef __WXMAC__
2971     const wxDCImpl* impl = dc.GetImpl();
2972     wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2973     if (print_impl)
2974     {
2975         int w, h;
2976         print_impl->GetSize( &w, &h );
2977         return new wxMacCoreGraphicsContext( this,
2978             (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2979     }
2980 #endif
2981     return NULL;
2982 }
2983 #endif
2984
2985 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2986 {
2987     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2988 }
2989
2990 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2991 {
2992 #if wxOSX_USE_CARBON
2993     wxMacCoreGraphicsContext* context = new wxMacCoreGraphicsContext(this,(WindowRef)window);
2994     context->EnableOffset(true);
2995     return context;
2996 #else
2997     wxUnusedVar(window);
2998     return NULL;
2999 #endif
3000 }
3001
3002 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
3003 {
3004     return new wxMacCoreGraphicsContext(this, window );
3005 }
3006
3007 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
3008 {
3009     return new wxMacCoreGraphicsContext(this);
3010 }
3011
3012 #if wxUSE_IMAGE
3013
3014 wxGraphicsContext*
3015 wxMacCoreGraphicsRenderer::CreateContextFromImage(wxImage& image)
3016 {
3017     return new wxMacCoreGraphicsImageContext(this, image);
3018 }
3019
3020 #endif // wxUSE_IMAGE
3021
3022 // Path
3023
3024 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
3025 {
3026     wxGraphicsPath m;
3027     m.SetRefData( new wxMacCoreGraphicsPathData(this));
3028     return m;
3029 }
3030
3031
3032 // Matrix
3033
3034 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
3035     wxDouble tx, wxDouble ty)
3036 {
3037     wxGraphicsMatrix m;
3038     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
3039     data->Set( a,b,c,d,tx,ty ) ;
3040     m.SetRefData(data);
3041     return m;
3042 }
3043
3044 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
3045 {
3046     if ( !pen.IsOk() || pen.GetStyle() == wxTRANSPARENT )
3047         return wxNullGraphicsPen;
3048     else
3049     {
3050         wxGraphicsPen p;
3051         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
3052         return p;
3053     }
3054 }
3055
3056 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
3057 {
3058     if ( !brush.IsOk() || brush.GetStyle() == wxTRANSPARENT )
3059         return wxNullGraphicsBrush;
3060     else
3061     {
3062         wxGraphicsBrush p;
3063         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
3064         return p;
3065     }
3066 }
3067
3068 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
3069 {
3070     if ( bmp.IsOk() )
3071     {
3072         wxGraphicsBitmap p;
3073         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
3074         return p;
3075     }
3076     else
3077         return wxNullGraphicsBitmap;
3078 }
3079
3080 #if wxUSE_IMAGE
3081
3082 wxGraphicsBitmap
3083 wxMacCoreGraphicsRenderer::CreateBitmapFromImage(const wxImage& image)
3084 {
3085     // We don't have any direct way to convert wxImage to CGImage so pass by
3086     // wxBitmap. This makes this function pretty useless in this implementation
3087     // but it allows to have the same API as with Cairo backend where we can
3088     // convert wxImage to a Cairo surface directly, bypassing wxBitmap.
3089     return CreateBitmap(wxBitmap(image));
3090 }
3091
3092 wxImage wxMacCoreGraphicsRenderer::CreateImageFromBitmap(const wxGraphicsBitmap& bmp)
3093 {
3094     wxMacCoreGraphicsBitmapData* const
3095         data = static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
3096
3097     return data ? data->ConvertToImage() : wxNullImage;
3098 }
3099
3100 #endif // wxUSE_IMAGE
3101
3102 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmapFromNativeBitmap( void* bitmap )
3103 {
3104     if ( bitmap != NULL )
3105     {
3106         wxGraphicsBitmap p;
3107         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , (CGImageRef) bitmap, false ));
3108         return p;
3109     }
3110     else
3111         return wxNullGraphicsBitmap;
3112 }
3113
3114 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
3115 {
3116     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
3117     CGImageRef img = refdata->GetBitmap();
3118     if ( img )
3119     {
3120         wxGraphicsBitmap p;
3121         CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h ));
3122         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg, refdata->IsMonochrome() ) );
3123         return p;
3124     }
3125     else
3126         return wxNullGraphicsBitmap;
3127 }
3128
3129 wxGraphicsBrush
3130 wxMacCoreGraphicsRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
3131                                                      wxDouble x2, wxDouble y2,
3132                                                      const wxGraphicsGradientStops& stops)
3133 {
3134     wxGraphicsBrush p;
3135     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
3136     d->CreateLinearGradientBrush(x1, y1, x2, y2, stops);
3137     p.SetRefData(d);
3138     return p;
3139 }
3140
3141 wxGraphicsBrush
3142 wxMacCoreGraphicsRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
3143                                                      wxDouble xc, wxDouble yc,
3144                                                      wxDouble radius,
3145                                                      const wxGraphicsGradientStops& stops)
3146 {
3147     wxGraphicsBrush p;
3148     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
3149     d->CreateRadialGradientBrush(xo, yo, xc, yc, radius, stops);
3150     p.SetRefData(d);
3151     return p;
3152 }
3153
3154 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
3155 {
3156     if ( font.IsOk() )
3157     {
3158         wxGraphicsFont p;
3159         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
3160         return p;
3161     }
3162     else
3163         return wxNullGraphicsFont;
3164 }
3165
3166 wxGraphicsFont
3167 wxMacCoreGraphicsRenderer::CreateFont(double sizeInPixels,
3168                                       const wxString& facename,
3169                                       int flags,
3170                                       const wxColour& col)
3171 {
3172     // This implementation is not ideal as we don't support fractional font
3173     // sizes right now, but it's the simplest one.
3174     //
3175     // Notice that under Mac we always use 72 DPI so the font size in pixels is
3176     // the same as the font size in points and we can pass it directly to wxFont
3177     // ctor.
3178     wxFont font(wxRound(sizeInPixels),
3179                 wxFONTFAMILY_DEFAULT,
3180                 flags & wxFONTFLAG_ITALIC ? wxFONTSTYLE_ITALIC
3181                                           : wxFONTSTYLE_NORMAL,
3182                 flags & wxFONTFLAG_BOLD ? wxFONTWEIGHT_BOLD
3183                                         : wxFONTWEIGHT_NORMAL,
3184                 (flags & wxFONTFLAG_UNDERLINED) != 0,
3185                 facename);
3186
3187     wxGraphicsFont f;
3188     f.SetRefData(new wxMacCoreGraphicsFontData(this, font, col));
3189     return f;
3190 }
3191
3192 //
3193 // CoreGraphics Helper Methods
3194 //
3195
3196 // Data Providers and Consumers
3197
3198 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
3199 {
3200     CFMutableDataRef data = (CFMutableDataRef) info;
3201     if ( data )
3202     {
3203         CFDataAppendBytes( data, (const UInt8*) bytes, count );
3204     }
3205     return count;
3206 }
3207
3208 void wxMacReleaseCFDataProviderCallback(void *info,
3209                                       const void *WXUNUSED(data),
3210                                       size_t WXUNUSED(count))
3211 {
3212     if ( info )
3213         CFRelease( (CFDataRef) info );
3214 }
3215
3216 void wxMacReleaseCFDataConsumerCallback( void *info )
3217 {
3218     if ( info )
3219         CFRelease( (CFDataRef) info );
3220 }
3221
3222 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
3223 {
3224     if ( data == NULL )
3225         return NULL;
3226
3227     return CGDataProviderCreateWithCFData( data );
3228 }
3229
3230 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
3231 {
3232     if ( data == NULL )
3233         return NULL;
3234
3235     return CGDataConsumerCreateWithCFData( data );
3236 }
3237
3238 void
3239 wxMacReleaseMemoryBufferProviderCallback(void *info,
3240                                          const void * WXUNUSED_UNLESS_DEBUG(data),
3241                                          size_t WXUNUSED(size))
3242 {
3243     wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
3244
3245     wxASSERT( data == membuf->GetData() ) ;
3246
3247     delete membuf ;
3248 }
3249
3250 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
3251 {
3252     wxMemoryBuffer* b = new wxMemoryBuffer( buf );
3253     if ( b->GetDataLen() == 0 )
3254         return NULL;
3255
3256     return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
3257                                                  wxMacReleaseMemoryBufferProviderCallback );
3258 }