src/mac/carbon/graphics.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/dccg.cpp
   3 // Purpose:     wxDC class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/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/log.h"
  21     #include "wx/region.h"
  22     #include "wx/image.h"
  23     #include "wx/icon.h"
  24 #endif
  25
  26
  27 #ifdef __MSL__
  28     #if __MSL__ >= 0x6000
  29         #include "math.h"
  30         // in case our functions were defined outside std, we make it known all the same
  31         namespace std { }
  32         using namespace std;
  33     #endif
  34 #endif
  35
  36 #ifdef __WXMAC__
  37     #include "wx/mac/uma.h"
  38     #include "wx/mac/dcprint.h"
  39 #else
  40     #include "CoreServices/CoreServices.h"
  41     #include "ApplicationServices/ApplicationServices.h"
  42     #include "wx/mac/corefoundation/cfstring.h"
  43     #include "wx/cocoa/dcclient.h"
  44 #endif
  45
  46 #ifdef __WXCOCOA__
  47
  48 CGColorSpaceRef wxMacGetGenericRGBColorSpace()
  49 {
  50     static wxCFRef<CGColorSpaceRef> genericRGBColorSpace;
  51
  52     if (genericRGBColorSpace == NULL)
  53     {
  54         genericRGBColorSpace.reset( CGColorSpaceCreateWithName( kCGColorSpaceGenericRGB ) );
  55     }
  56
  57     return genericRGBColorSpace;
  58 }
  59
  60 int UMAGetSystemVersion()
  61 {
  62     return 0x1050;
  63 }
  64
  65
  66 #define wxMAC_USE_CORE_TEXT 1
  67
  68 #endif
  69
  70 //-----------------------------------------------------------------------------
  71 // constants
  72 //-----------------------------------------------------------------------------
  73
  74 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
  75 #ifndef M_PI
  76 const double M_PI = 3.14159265358979;
  77 #endif
  78 #endif
  79
  80 static const double RAD2DEG = 180.0 / M_PI;
  81
  82 //
  83 // Pen, Brushes and Fonts
  84 //
  85
  86 #pragma mark -
  87 #pragma mark wxMacCoreGraphicsPattern, ImagePattern, HatchPattern classes
  88
  89 OSStatus wxMacDrawCGImage(
  90                   CGContextRef    inContext,
  91                   const CGRect *  inBounds,
  92                   CGImageRef      inImage)
  93 {
  94 #if defined( __LP64__ ) || defined(__WXCOCOA__)
  95     // todo flip
  96     CGContextDrawImage(inContext, *inBounds, inImage );
  97     return noErr;
  98 #else
  99     return HIViewDrawCGImage( inContext, inBounds, inImage );
 100 #endif
 101 }
 102
 103 CGColorRef wxMacCreateCGColor( const wxColour& col )
 104 {
 105     CGColorRef retval = 0;
 106 #ifdef __WXMAC__
 107     retval = col.CreateCGColor();
 108 #else
 109 // TODO add conversion NSColor - CGColorRef (obj-c)
 110 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
 111     if ( CGColorCreateGenericRGB )
 112         retval = CGColorCreateGenericRGB( col.Red() / 255.0 , col.Green() / 255.0, col.Blue() / 255.0, col.Alpha() / 255.0 );
 113     else
 114 #endif
 115     {
 116         CGFloat components[4] = { col.Red() / 255.0, col.Green() / 255.0, col.Blue()  / 255.0, col.Alpha() / 255.0 } ;
 117         retval = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
 118     }
 119
 120 #endif
 121     return retval;
 122 }
 123
 124 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 && defined(wxMAC_USE_CORE_TEXT)
 125
 126 CTFontRef wxMacCreateCTFont( const wxFont& font )
 127 {
 128 #ifdef __WXMAC__
 129     return wxCFRetain((CTFontRef) font.MacGetCTFont());
 130 #else
 131     return CTFontCreateWithName( wxCFStringRef( font.GetFaceName(), wxLocale::GetSystemEncoding() ) , font.GetPointSize() , NULL );
 132 #endif
 133 }
 134
 135 #endif
 136
 137 // CGPattern wrapper class: always allocate on heap, never call destructor
 138
 139 class wxMacCoreGraphicsPattern
 140 {
 141 public :
 142     wxMacCoreGraphicsPattern() {}
 143
 144     // is guaranteed to be called only with a non-Null CGContextRef
 145     virtual void Render( CGContextRef ctxRef ) = 0;
 146
 147     operator CGPatternRef() const { return m_patternRef; }
 148
 149 protected :
 150     virtual ~wxMacCoreGraphicsPattern()
 151     {
 152         // as this is called only when the m_patternRef is been released;
 153         // don't release it again
 154     }
 155
 156     static void _Render( void *info, CGContextRef ctxRef )
 157     {
 158         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 159         if ( self && ctxRef )
 160             self->Render( ctxRef );
 161     }
 162
 163     static void _Dispose( void *info )
 164     {
 165         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 166         delete self;
 167     }
 168
 169     CGPatternRef m_patternRef;
 170
 171     static const CGPatternCallbacks ms_Callbacks;
 172 };
 173
 174 const CGPatternCallbacks wxMacCoreGraphicsPattern::ms_Callbacks = { 0, &wxMacCoreGraphicsPattern::_Render, &wxMacCoreGraphicsPattern::_Dispose };
 175
 176 class ImagePattern : public wxMacCoreGraphicsPattern
 177 {
 178 public :
 179     ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
 180     {
 181         wxASSERT( bmp && bmp->Ok() );
 182 #ifdef __WXMAC__
 183         Init( (CGImageRef) bmp->CreateCGImage() , transform );
 184 #endif
 185     }
 186
 187     // ImagePattern takes ownership of CGImageRef passed in
 188     ImagePattern( CGImageRef image , const CGAffineTransform& transform )
 189     {
 190         if ( image )
 191             CFRetain( image );
 192
 193         Init( image , transform );
 194     }
 195
 196     virtual void Render( CGContextRef ctxRef )
 197     {
 198         if (m_image != NULL)
 199             wxMacDrawCGImage( ctxRef, &m_imageBounds, m_image );
 200     }
 201
 202 protected :
 203     void Init( CGImageRef image, const CGAffineTransform& transform )
 204     {
 205         m_image = image;
 206         if ( m_image )
 207         {
 208             m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) );
 209             m_patternRef = CGPatternCreate(
 210                 this , m_imageBounds, transform ,
 211                 m_imageBounds.size.width, m_imageBounds.size.height,
 212                 kCGPatternTilingNoDistortion, true , &wxMacCoreGraphicsPattern::ms_Callbacks );
 213         }
 214     }
 215
 216     virtual ~ImagePattern()
 217     {
 218         if ( m_image )
 219             CGImageRelease( m_image );
 220     }
 221
 222     CGImageRef m_image;
 223     CGRect m_imageBounds;
 224 };
 225
 226 class HatchPattern : public wxMacCoreGraphicsPattern
 227 {
 228 public :
 229     HatchPattern( int hatchstyle, const CGAffineTransform& transform )
 230     {
 231         m_hatch = hatchstyle;
 232         m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat) 8.0 , (CGFloat) 8.0 );
 233         m_patternRef = CGPatternCreate(
 234             this , m_imageBounds, transform ,
 235             m_imageBounds.size.width, m_imageBounds.size.height,
 236             kCGPatternTilingNoDistortion, false , &wxMacCoreGraphicsPattern::ms_Callbacks );
 237     }
 238
 239     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 240     {
 241         CGContextStrokeLineSegments( ctxRef , pts , count );
 242     }
 243
 244     virtual void Render( CGContextRef ctxRef )
 245     {
 246         switch ( m_hatch )
 247         {
 248             case wxBDIAGONAL_HATCH :
 249                 {
 250                     CGPoint pts[] =
 251                     {
 252                     { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 253                     };
 254                     StrokeLineSegments( ctxRef , pts , 2 );
 255                 }
 256                 break;
 257
 258             case wxCROSSDIAG_HATCH :
 259                 {
 260                     CGPoint pts[] =
 261                     {
 262                         { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 } ,
 263                         { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 264                     };
 265                     StrokeLineSegments( ctxRef , pts , 4 );
 266                 }
 267                 break;
 268
 269             case wxFDIAGONAL_HATCH :
 270                 {
 271                     CGPoint pts[] =
 272                     {
 273                     { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 }
 274                     };
 275                     StrokeLineSegments( ctxRef , pts , 2 );
 276                 }
 277                 break;
 278
 279             case wxCROSS_HATCH :
 280                 {
 281                     CGPoint pts[] =
 282                     {
 283                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 284                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 285                     };
 286                     StrokeLineSegments( ctxRef , pts , 4 );
 287                 }
 288                 break;
 289
 290             case wxHORIZONTAL_HATCH :
 291                 {
 292                     CGPoint pts[] =
 293                     {
 294                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 295                     };
 296                     StrokeLineSegments( ctxRef , pts , 2 );
 297                 }
 298                 break;
 299
 300             case wxVERTICAL_HATCH :
 301                 {
 302                     CGPoint pts[] =
 303                     {
 304                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 305                     };
 306                     StrokeLineSegments( ctxRef , pts , 2 );
 307                 }
 308                 break;
 309
 310             default:
 311                 break;
 312         }
 313     }
 314
 315 protected :
 316     virtual ~HatchPattern() {}
 317
 318     CGRect      m_imageBounds;
 319     int         m_hatch;
 320 };
 321
 322 class wxMacCoreGraphicsPenData : public wxGraphicsObjectRefData
 323 {
 324 public:
 325     wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
 326     ~wxMacCoreGraphicsPenData();
 327
 328     void Init();
 329     virtual void Apply( wxGraphicsContext* context );
 330     virtual wxDouble GetWidth() { return m_width; }
 331
 332 protected :
 333     CGLineCap m_cap;
 334     wxCFRef<CGColorRef> m_color;
 335     wxCFRef<CGColorSpaceRef> m_colorSpace;
 336
 337     CGLineJoin m_join;
 338     CGFloat m_width;
 339
 340     int m_count;
 341     const CGFloat *m_lengths;
 342     CGFloat *m_userLengths;
 343
 344
 345     bool m_isPattern;
 346     wxCFRef<CGPatternRef> m_pattern;
 347     CGFloat* m_patternColorComponents;
 348 };
 349
 350 wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) :
 351     wxGraphicsObjectRefData( renderer )
 352 {
 353     Init();
 354
 355     m_color.reset( wxMacCreateCGColor( pen.GetColour() ) ) ;
 356
 357     // TODO: * m_dc->m_scaleX
 358     m_width = pen.GetWidth();
 359     if (m_width <= 0.0)
 360         m_width = (CGFloat) 0.1;
 361
 362     switch ( pen.GetCap() )
 363     {
 364         case wxCAP_ROUND :
 365             m_cap = kCGLineCapRound;
 366             break;
 367
 368         case wxCAP_PROJECTING :
 369             m_cap = kCGLineCapSquare;
 370             break;
 371
 372         case wxCAP_BUTT :
 373             m_cap = kCGLineCapButt;
 374             break;
 375
 376         default :
 377             m_cap = kCGLineCapButt;
 378             break;
 379     }
 380
 381     switch ( pen.GetJoin() )
 382     {
 383         case wxJOIN_BEVEL :
 384             m_join = kCGLineJoinBevel;
 385             break;
 386
 387         case wxJOIN_MITER :
 388             m_join = kCGLineJoinMiter;
 389             break;
 390
 391         case wxJOIN_ROUND :
 392             m_join = kCGLineJoinRound;
 393             break;
 394
 395         default :
 396             m_join = kCGLineJoinMiter;
 397             break;
 398     }
 399
 400     const CGFloat dashUnit = m_width < 1.0 ? (CGFloat) 1.0 : m_width;
 401
 402     const CGFloat dotted[] = { (CGFloat) dashUnit , (CGFloat) (dashUnit + 2.0) };
 403     static const CGFloat short_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 };
 404     static const CGFloat dashed[] = { (CGFloat) 19.0 , (CGFloat) 9.0 };
 405     static const CGFloat dotted_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 , (CGFloat) 3.0 , (CGFloat) 3.0 };
 406
 407     switch ( pen.GetStyle() )
 408     {
 409         case wxSOLID :
 410             break;
 411
 412         case wxDOT :
 413             m_count = WXSIZEOF(dotted);
 414             m_userLengths = new CGFloat[ m_count ] ;
 415             memcpy( m_userLengths, dotted, sizeof(dotted) );
 416             m_lengths = m_userLengths;
 417             break;
 418
 419         case wxLONG_DASH :
 420             m_count = WXSIZEOF(dashed);
 421             m_lengths = dashed;
 422             break;
 423
 424         case wxSHORT_DASH :
 425             m_count = WXSIZEOF(short_dashed);
 426             m_lengths = short_dashed;
 427             break;
 428
 429         case wxDOT_DASH :
 430             m_count = WXSIZEOF(dotted_dashed);
 431             m_lengths = dotted_dashed;
 432             break;
 433
 434         case wxUSER_DASH :
 435             wxDash *dashes;
 436             m_count = pen.GetDashes( &dashes );
 437             if ((dashes != NULL) && (m_count > 0))
 438             {
 439                 m_userLengths = new CGFloat[m_count];
 440                 for ( int i = 0; i < m_count; ++i )
 441                 {
 442                     m_userLengths[i] = dashes[i] * dashUnit;
 443
 444                     if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
 445                         m_userLengths[i] = (CGFloat) (dashUnit + 2.0);
 446                     else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
 447                         m_userLengths[i] = dashUnit;
 448                 }
 449             }
 450             m_lengths = m_userLengths;
 451             break;
 452
 453         case wxSTIPPLE :
 454             {
 455                 wxBitmap* bmp = pen.GetStipple();
 456                 if ( bmp && bmp->Ok() )
 457                 {
 458                     m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 459                     m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 460                     m_patternColorComponents = new CGFloat[1] ;
 461                     m_patternColorComponents[0] = (CGFloat) 1.0;
 462                     m_isPattern = true;
 463                 }
 464             }
 465             break;
 466
 467         default :
 468             {
 469                 m_isPattern = true;
 470                 m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 471                 m_pattern.reset( (CGPatternRef) *( new HatchPattern( pen.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 472                 m_patternColorComponents = new CGFloat[4] ;
 473                 m_patternColorComponents[0] = (CGFloat) (pen.GetColour().Red() / 255.0);
 474                 m_patternColorComponents[1] = (CGFloat) (pen.GetColour().Green() / 255.0);
 475                 m_patternColorComponents[2] = (CGFloat) (pen.GetColour().Blue() / 255.0);
 476                 m_patternColorComponents[3] =  (CGFloat) (pen.GetColour().Alpha() / 255.0);
 477             }
 478             break;
 479     }
 480     if ((m_lengths != NULL) && (m_count > 0))
 481     {
 482         // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 483         m_cap = kCGLineCapButt;
 484     }
 485 }
 486
 487 wxMacCoreGraphicsPenData::~wxMacCoreGraphicsPenData()
 488 {
 489     delete[] m_userLengths;
 490     delete[] m_patternColorComponents;
 491 }
 492
 493 void wxMacCoreGraphicsPenData::Init()
 494 {
 495     m_lengths = NULL;
 496     m_userLengths = NULL;
 497     m_width = 0;
 498     m_count = 0;
 499     m_patternColorComponents = NULL;
 500     m_isPattern = false;
 501 }
 502
 503 void wxMacCoreGraphicsPenData::Apply( wxGraphicsContext* context )
 504 {
 505     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 506     CGContextSetLineWidth( cg , m_width );
 507     CGContextSetLineJoin( cg , m_join );
 508
 509     CGContextSetLineDash( cg , 0 , m_lengths , m_count );
 510     CGContextSetLineCap( cg , m_cap );
 511
 512     if ( m_isPattern )
 513     {
 514         CGAffineTransform matrix = CGContextGetCTM( cg );
 515         CGContextSetPatternPhase( cg, CGSizeMake(matrix.tx, matrix.ty) );
 516         CGContextSetStrokeColorSpace( cg , m_colorSpace );
 517         CGContextSetStrokePattern( cg, m_pattern , m_patternColorComponents );
 518     }
 519     else
 520     {
 521         if ( context->GetLogicalFunction() == wxINVERT || context->GetLogicalFunction() == wxXOR )
 522         {
 523             CGContextSetRGBStrokeColor( cg , (CGFloat) 1.0,(CGFloat)  1.0 , (CGFloat) 1.0, (CGFloat) 1.0 );
 524         }
 525         else
 526             CGContextSetStrokeColorWithColor( cg , m_color );
 527     }
 528 }
 529
 530 //
 531 // Brush
 532 //
 533
 534 static const char *gs_stripedback_xpm[] = {
 535 /* columns rows colors chars-per-pixel */
 536 "4 4 2 1",
 537 ". c #F0F0F0",
 538 "X c #ECECEC",
 539 /* pixels */
 540 "....",
 541 "....",
 542 "XXXX",
 543 "XXXX"
 544 };
 545
 546 wxBitmap gs_stripedback_bmp( wxImage( (const char* const* ) gs_stripedback_xpm  ), -1 ) ;
 547
 548 // make sure we all use one class for all conversions from wx to native colour
 549
 550 class wxMacCoreGraphicsColour
 551 {
 552     public:
 553         wxMacCoreGraphicsColour();
 554         wxMacCoreGraphicsColour(const wxBrush &brush);
 555         ~wxMacCoreGraphicsColour();
 556
 557         void Apply( CGContextRef cgContext );
 558     protected:
 559         void Init();
 560         wxCFRef<CGColorRef> m_color;
 561         wxCFRef<CGColorSpaceRef> m_colorSpace;
 562
 563         bool m_isPattern;
 564         wxCFRef<CGPatternRef> m_pattern;
 565         CGFloat* m_patternColorComponents;
 566 } ;
 567
 568 wxMacCoreGraphicsColour::~wxMacCoreGraphicsColour()
 569 {
 570     delete[] m_patternColorComponents;
 571 }
 572
 573 void wxMacCoreGraphicsColour::Init()
 574 {
 575     m_isPattern = false;
 576     m_patternColorComponents = NULL;
 577 }
 578
 579 void wxMacCoreGraphicsColour::Apply( CGContextRef cgContext )
 580 {
 581     if ( m_isPattern )
 582     {
 583         CGAffineTransform matrix = CGContextGetCTM( cgContext );
 584         CGContextSetPatternPhase( cgContext, CGSizeMake(matrix.tx, matrix.ty) );
 585         CGContextSetFillColorSpace( cgContext , m_colorSpace );
 586         CGContextSetFillPattern( cgContext, m_pattern , m_patternColorComponents );
 587     }
 588     else
 589     {
 590         CGContextSetFillColorWithColor( cgContext, m_color );
 591     }
 592 }
 593
 594 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour()
 595 {
 596     Init();
 597 }
 598
 599 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour( const wxBrush &brush )
 600 {
 601     Init();
 602     if ( brush.GetStyle() == wxSOLID )
 603     {
 604         m_color.reset( wxMacCreateCGColor( brush.GetColour() ));
 605     }
 606     else if ( brush.IsHatch() )
 607     {
 608         m_isPattern = true;
 609         m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 610         m_pattern.reset( (CGPatternRef) *( new HatchPattern( brush.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 611
 612         m_patternColorComponents = new CGFloat[4] ;
 613         m_patternColorComponents[0] = (CGFloat) (brush.GetColour().Red() / 255.0);
 614         m_patternColorComponents[1] = (CGFloat) (brush.GetColour().Green() / 255.0);
 615         m_patternColorComponents[2] = (CGFloat) (brush.GetColour().Blue() / 255.0);
 616         m_patternColorComponents[3] = (CGFloat) (brush.GetColour().Alpha() / 255.0);
 617     }
 618     else
 619     {
 620         // now brush is a bitmap
 621         wxBitmap* bmp = brush.GetStipple();
 622         if ( bmp && bmp->Ok() )
 623         {
 624             m_isPattern = true;
 625             m_patternColorComponents = new CGFloat[1] ;
 626             m_patternColorComponents[0] = (CGFloat) 1.0;
 627             m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 628             m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 629         }
 630     }
 631 }
 632
 633 class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
 634 {
 635 public:
 636     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
 637     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
 638     ~wxMacCoreGraphicsBrushData ();
 639
 640     virtual void Apply( wxGraphicsContext* context );
 641     void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 642         const wxColour&c1, const wxColour&c2 );
 643     void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 644     const wxColour &oColor, const wxColour &cColor );
 645
 646     virtual bool IsShading() { return m_isShading; }
 647     CGShadingRef GetShading() { return m_shading; }
 648 protected:
 649     CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 );
 650     static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
 651     virtual void Init();
 652
 653     wxMacCoreGraphicsColour m_cgColor;
 654
 655     bool m_isShading;
 656     CGFunctionRef m_gradientFunction;
 657     CGShadingRef m_shading;
 658     CGFloat *m_gradientComponents;
 659 };
 660
 661 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
 662 {
 663     Init();
 664 }
 665
 666 void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 667         const wxColour&c1, const wxColour&c2 )
 668 {
 669     m_gradientFunction = CreateGradientFunction( c1, c2 );
 670     m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) x1, (CGFloat) y1),
 671                                         CGPointMake((CGFloat) x2,(CGFloat) y2), m_gradientFunction, true, true ) ;
 672     m_isShading = true ;
 673 }
 674
 675 void wxMacCoreGraphicsBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 676     const wxColour &oColor, const wxColour &cColor )
 677 {
 678     m_gradientFunction = CreateGradientFunction( oColor, cColor );
 679     m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) xo,(CGFloat) yo), 0,
 680                                         CGPointMake((CGFloat) xc,(CGFloat) yc), (CGFloat) radius, m_gradientFunction, true, true ) ;
 681     m_isShading = true ;
 682 }
 683
 684 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer ),
 685     m_cgColor( brush )
 686 {
 687     Init();
 688
 689 }
 690
 691 wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
 692 {
 693     if ( m_shading )
 694         CGShadingRelease(m_shading);
 695
 696     if( m_gradientFunction )
 697         CGFunctionRelease(m_gradientFunction);
 698
 699     delete[] m_gradientComponents;
 700 }
 701
 702 void wxMacCoreGraphicsBrushData::Init()
 703 {
 704     m_gradientFunction = NULL;
 705     m_shading = NULL;
 706     m_gradientComponents = NULL;
 707     m_isShading = false;
 708 }
 709
 710 void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
 711 {
 712     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 713
 714     if ( m_isShading )
 715     {
 716         // nothing to set as shades are processed by clipping using the path and filling
 717     }
 718     else
 719     {
 720         m_cgColor.Apply( cg );
 721     }
 722 }
 723
 724 void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
 725 {
 726     CGFloat* colors = (CGFloat*) info ;
 727     CGFloat f = *in;
 728     for( int i = 0 ; i < 4 ; ++i )
 729     {
 730         out[i] = colors[i] + ( colors[4+i] - colors[i] ) * f;
 731     }
 732 }
 733
 734 CGFunctionRef wxMacCoreGraphicsBrushData::CreateGradientFunction( const wxColour& c1, const wxColour& c2 )
 735 {
 736     static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL };
 737     static const CGFloat input_value_range [2] = { 0, 1 };
 738     static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 };
 739     m_gradientComponents = new CGFloat[8] ;
 740     m_gradientComponents[0] = (CGFloat) (c1.Red() / 255.0);
 741     m_gradientComponents[1] = (CGFloat) (c1.Green() / 255.0);
 742     m_gradientComponents[2] = (CGFloat) (c1.Blue() / 255.0);
 743     m_gradientComponents[3] = (CGFloat) (c1.Alpha() / 255.0);
 744     m_gradientComponents[4] = (CGFloat) (c2.Red() / 255.0);
 745     m_gradientComponents[5] = (CGFloat) (c2.Green() / 255.0);
 746     m_gradientComponents[6] = (CGFloat) (c2.Blue() / 255.0);
 747     m_gradientComponents[7] = (CGFloat) (c2.Alpha() / 255.0);
 748
 749     return CGFunctionCreate ( m_gradientComponents,  1,
 750                             input_value_range,
 751                             4,
 752                             output_value_ranges,
 753                             &callbacks);
 754 }
 755
 756 //
 757 // Font
 758 //
 759
 760 class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
 761 {
 762 public:
 763     wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
 764     ~wxMacCoreGraphicsFontData();
 765
 766 #if wxMAC_USE_ATSU_TEXT
 767     virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
 768 #endif
 769 #if wxMAC_USE_CORE_TEXT
 770     CTFontRef GetCTFont() const { return m_ctFont ; }
 771 #endif
 772     wxColour GetColour() const { return m_colour ; }
 773
 774     bool GetUnderlined() const { return m_underlined ; }
 775 private :
 776     wxColour m_colour;
 777     bool m_underlined;
 778 #if wxMAC_USE_ATSU_TEXT
 779     ATSUStyle m_macATSUIStyle;
 780 #endif
 781 #if wxMAC_USE_CORE_TEXT
 782     wxCFRef< CTFontRef > m_ctFont;
 783 #endif
 784 };
 785
 786 wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
 787 {
 788     m_colour = col;
 789     m_underlined = font.GetUnderlined();
 790
 791 #if wxMAC_USE_CORE_TEXT
 792     m_ctFont.reset( wxMacCreateCTFont( font ) );
 793 #endif
 794 #if wxMAC_USE_ATSU_TEXT
 795     OSStatus status = noErr;
 796     m_macATSUIStyle = NULL;
 797
 798     status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
 799
 800     wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
 801
 802     // we need the scale here ...
 803
 804     Fixed atsuSize = IntToFixed( int( 1 * font.MacGetFontSize()) );
 805     RGBColor atsuColor ;
 806     col.GetRGBColor( &atsuColor );
 807     ATSUAttributeTag atsuTags[] =
 808     {
 809             kATSUSizeTag ,
 810             kATSUColorTag ,
 811     };
 812     ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 813     {
 814             sizeof( Fixed ) ,
 815             sizeof( RGBColor ) ,
 816     };
 817     ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 818     {
 819             &atsuSize ,
 820             &atsuColor ,
 821     };
 822
 823     status = ::ATSUSetAttributes(
 824         m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
 825         atsuTags, atsuSizes, atsuValues);
 826
 827     wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
 828 #endif
 829 #if wxMAC_USE_CG_TEXT
 830 #endif
 831 }
 832
 833 wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
 834 {
 835 #if wxMAC_USE_CORE_TEXT
 836 #endif
 837 #if wxMAC_USE_ATSU_TEXT
 838     if ( m_macATSUIStyle )
 839     {
 840         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 841         m_macATSUIStyle = NULL;
 842     }
 843 #endif
 844 #if wxMAC_USE_CG_TEXT
 845 #endif
 846 }
 847
 848 class wxMacCoreGraphicsBitmapData : public wxGraphicsObjectRefData
 849 {
 850 public:
 851     wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome );
 852     ~wxMacCoreGraphicsBitmapData();
 853
 854     virtual CGImageRef GetBitmap() { return m_bitmap; }
 855     bool IsMonochrome() { return m_monochrome; }
 856 private :
 857     CGImageRef m_bitmap;
 858     bool m_monochrome;
 859 };
 860
 861 wxMacCoreGraphicsBitmapData::wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome ) : wxGraphicsObjectRefData( renderer ),
 862     m_bitmap(bitmap), m_monochrome(monochrome)
 863 {
 864 }
 865
 866 wxMacCoreGraphicsBitmapData::~wxMacCoreGraphicsBitmapData()
 867 {
 868     CGImageRelease( m_bitmap );
 869 }
 870
 871 //
 872 // Graphics Matrix
 873 //
 874
 875 //-----------------------------------------------------------------------------
 876 // wxMacCoreGraphicsMatrix declaration
 877 //-----------------------------------------------------------------------------
 878
 879 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
 880 {
 881 public :
 882     wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
 883
 884     virtual ~wxMacCoreGraphicsMatrixData() ;
 885
 886     virtual wxGraphicsObjectRefData *Clone() const ;
 887
 888     // concatenates the matrix
 889     virtual void Concat( const wxGraphicsMatrixData *t );
 890
 891     // sets the matrix to the respective values
 892     virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
 893         wxDouble tx=0.0, wxDouble ty=0.0);
 894
 895     // gets the component valuess of the matrix
 896     virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL,  wxDouble* c=NULL,
 897                      wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
 898
 899     // makes this the inverse matrix
 900     virtual void Invert();
 901
 902     // returns true if the elements of the transformation matrix are equal ?
 903     virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
 904
 905     // return true if this is the identity matrix
 906     virtual bool IsIdentity() const;
 907
 908     //
 909     // transformation
 910     //
 911
 912     // add the translation to this matrix
 913     virtual void Translate( wxDouble dx , wxDouble dy );
 914
 915     // add the scale to this matrix
 916     virtual void Scale( wxDouble xScale , wxDouble yScale );
 917
 918     // add the rotation to this matrix (radians)
 919     virtual void Rotate( wxDouble angle );
 920
 921     //
 922     // apply the transforms
 923     //
 924
 925     // applies that matrix to the point
 926     virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
 927
 928     // applies the matrix except for translations
 929     virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
 930
 931     // returns the native representation
 932     virtual void * GetNativeMatrix() const;
 933
 934 private :
 935     CGAffineTransform m_matrix;
 936 } ;
 937
 938 //-----------------------------------------------------------------------------
 939 // wxMacCoreGraphicsMatrix implementation
 940 //-----------------------------------------------------------------------------
 941
 942 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
 943 {
 944 }
 945
 946 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
 947 {
 948 }
 949
 950 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
 951 {
 952     wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
 953     m->m_matrix = m_matrix ;
 954     return m;
 955 }
 956
 957 // concatenates the matrix
 958 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
 959 {
 960     m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
 961 }
 962
 963 // sets the matrix to the respective values
 964 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
 965     wxDouble tx, wxDouble ty)
 966 {
 967     m_matrix = CGAffineTransformMake((CGFloat) a,(CGFloat) b,(CGFloat) c,(CGFloat) d,(CGFloat) tx,(CGFloat) ty);
 968 }
 969
 970 // gets the component valuess of the matrix
 971 void wxMacCoreGraphicsMatrixData::Get(wxDouble* a, wxDouble* b,  wxDouble* c,
 972                                       wxDouble* d, wxDouble* tx, wxDouble* ty) const
 973 {
 974     if (a)  *a = m_matrix.a;
 975     if (b)  *b = m_matrix.b;
 976     if (c)  *c = m_matrix.c;
 977     if (d)  *d = m_matrix.d;
 978     if (tx) *tx= m_matrix.tx;
 979     if (ty) *ty= m_matrix.ty;
 980 }
 981
 982 // makes this the inverse matrix
 983 void wxMacCoreGraphicsMatrixData::Invert()
 984 {
 985     m_matrix = CGAffineTransformInvert( m_matrix );
 986 }
 987
 988 // returns true if the elements of the transformation matrix are equal ?
 989 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
 990 {
 991     return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
 992 }
 993
 994 // return true if this is the identity matrix
 995 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
 996 {
 997     return ( m_matrix.a == 1 && m_matrix.d == 1 &&
 998         m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
 999 }
1000
1001 //
1002 // transformation
1003 //
1004
1005 // add the translation to this matrix
1006 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
1007 {
1008     m_matrix = CGAffineTransformTranslate( m_matrix, (CGFloat) dx, (CGFloat) dy);
1009 }
1010
1011 // add the scale to this matrix
1012 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1013 {
1014     m_matrix = CGAffineTransformScale( m_matrix, (CGFloat) xScale, (CGFloat) yScale);
1015 }
1016
1017 // add the rotation to this matrix (radians)
1018 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
1019 {
1020     m_matrix = CGAffineTransformRotate( m_matrix, (CGFloat) angle);
1021 }
1022
1023 //
1024 // apply the transforms
1025 //
1026
1027 // applies that matrix to the point
1028 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1029 {
1030     CGPoint pt = CGPointApplyAffineTransform( CGPointMake((CGFloat) *x,(CGFloat) *y), m_matrix);
1031
1032     *x = pt.x;
1033     *y = pt.y;
1034 }
1035
1036 // applies the matrix except for translations
1037 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1038 {
1039     CGSize sz = CGSizeApplyAffineTransform( CGSizeMake((CGFloat) *dx,(CGFloat) *dy) , m_matrix );
1040     *dx = sz.width;
1041     *dy = sz.height;
1042 }
1043
1044 // returns the native representation
1045 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
1046 {
1047     return (void*) &m_matrix;
1048 }
1049
1050 //
1051 // Graphics Path
1052 //
1053
1054 //-----------------------------------------------------------------------------
1055 // wxMacCoreGraphicsPath declaration
1056 //-----------------------------------------------------------------------------
1057
1058 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
1059 {
1060 public :
1061     wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
1062
1063     ~wxMacCoreGraphicsPathData();
1064
1065     virtual wxGraphicsObjectRefData *Clone() const;
1066
1067     // begins a new subpath at (x,y)
1068     virtual void MoveToPoint( wxDouble x, wxDouble y );
1069
1070     // adds a straight line from the current point to (x,y)
1071     virtual void AddLineToPoint( wxDouble x, wxDouble y );
1072
1073     // adds a cubic Bezier curve from the current point, using two control points and an end point
1074     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
1075
1076     // closes the current sub-path
1077     virtual void CloseSubpath();
1078
1079     // gets the last point of the current path, (0,0) if not yet set
1080     virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
1081
1082     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1083     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
1084
1085     //
1086     // These are convenience functions which - if not available natively will be assembled
1087     // using the primitives from above
1088     //
1089
1090     // adds a quadratic Bezier curve from the current point, using a control point and an end point
1091     virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
1092
1093     // appends a rectangle as a new closed subpath
1094     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1095
1096     // appends an ellipsis as a new closed subpath fitting the passed rectangle
1097     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1098
1099     // 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)
1100     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1101
1102     // adds another path
1103     virtual void AddPath( const wxGraphicsPathData* path );
1104
1105     // returns the native path
1106     virtual void * GetNativePath() const { return m_path; }
1107
1108     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1109     virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1110
1111     // transforms each point of this path by the matrix
1112     virtual void Transform( const wxGraphicsMatrixData* matrix );
1113
1114     // gets the bounding box enclosing all points (possibly including control points)
1115     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
1116
1117     virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxODDEVEN_RULE) const;
1118 private :
1119     CGMutablePathRef m_path;
1120 };
1121
1122 //-----------------------------------------------------------------------------
1123 // wxMacCoreGraphicsPath implementation
1124 //-----------------------------------------------------------------------------
1125
1126 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1127 {
1128     if ( path )
1129         m_path = path;
1130     else
1131         m_path = CGPathCreateMutable();
1132 }
1133
1134 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1135 {
1136     CGPathRelease( m_path );
1137 }
1138
1139 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1140 {
1141     wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1142     return clone ;
1143 }
1144
1145
1146 // opens (starts) a new subpath
1147 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1148 {
1149     CGPathMoveToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1150 }
1151
1152 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1153 {
1154     CGPathAddLineToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1155 }
1156
1157 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1158 {
1159     CGPathAddCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) cx2, (CGFloat) cy2, (CGFloat) x , (CGFloat) y );
1160 }
1161
1162 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1163 {
1164     CGPathAddQuadCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) x , (CGFloat) y );
1165 }
1166
1167 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1168 {
1169     CGRect cgRect = { { (CGFloat) x , (CGFloat) y } , { (CGFloat) w , (CGFloat) h } };
1170     CGPathAddRect( m_path , NULL , cgRect );
1171 }
1172
1173 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1174 {
1175     CGPathAddArc( m_path , NULL , (CGFloat) x , (CGFloat) y , (CGFloat) r , (CGFloat) 0.0 , (CGFloat) (2 * M_PI) , true );
1176 }
1177
1178 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1179 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1180 {
1181     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1182     CGPathAddArc( m_path, NULL , (CGFloat) x, (CGFloat) y, (CGFloat) r, (CGFloat) startAngle, (CGFloat) endAngle, !clockwise);
1183 }
1184
1185 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1186 {
1187     CGPathAddArcToPoint( m_path, NULL , (CGFloat) x1, (CGFloat) y1, (CGFloat) x2, (CGFloat) y2, (CGFloat) r);
1188 }
1189
1190 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1191 {
1192     CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1193 }
1194
1195 // closes the current subpath
1196 void wxMacCoreGraphicsPathData::CloseSubpath()
1197 {
1198     CGPathCloseSubpath( m_path );
1199 }
1200
1201 // gets the last point of the current path, (0,0) if not yet set
1202 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1203 {
1204     CGPoint p = CGPathGetCurrentPoint( m_path );
1205     *x = p.x;
1206     *y = p.y;
1207 }
1208
1209 // transforms each point of this path by the matrix
1210 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1211 {
1212     CGMutablePathRef p = CGPathCreateMutable() ;
1213     CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1214     CGPathRelease( m_path );
1215     m_path = p;
1216 }
1217
1218 // gets the bounding box enclosing all points (possibly including control points)
1219 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1220 {
1221     CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1222     *x = bounds.origin.x;
1223     *y = bounds.origin.y;
1224     *w = bounds.size.width;
1225     *h = bounds.size.height;
1226 }
1227
1228 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, int fillStyle) const
1229 {
1230     return CGPathContainsPoint( m_path, NULL, CGPointMake((CGFloat) x,(CGFloat) y), fillStyle == wxODDEVEN_RULE );
1231 }
1232
1233 //
1234 // Graphics Context
1235 //
1236
1237 //-----------------------------------------------------------------------------
1238 // wxMacCoreGraphicsContext declaration
1239 //-----------------------------------------------------------------------------
1240
1241 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1242 {
1243 public:
1244     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1245
1246     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1247
1248     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1249
1250     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1251
1252     wxMacCoreGraphicsContext();
1253
1254     ~wxMacCoreGraphicsContext();
1255
1256     void Init();
1257
1258     // returns the size of the graphics context in device coordinates
1259     virtual void GetSize( wxDouble* width, wxDouble* height);
1260
1261     virtual void StartPage( wxDouble width, wxDouble height );
1262
1263     virtual void EndPage();
1264
1265     virtual void Flush();
1266
1267     // push the current state of the context, ie the transformation matrix on a stack
1268     virtual void PushState();
1269
1270     // pops a stored state from the stack
1271     virtual void PopState();
1272
1273     // clips drawings to the region
1274     virtual void Clip( const wxRegion &region );
1275
1276     // clips drawings to the rect
1277     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1278
1279     // resets the clipping to original extent
1280     virtual void ResetClip();
1281
1282     virtual void * GetNativeContext();
1283
1284     bool SetLogicalFunction( int function );
1285     //
1286     // transformation
1287     //
1288
1289     // translate
1290     virtual void Translate( wxDouble dx , wxDouble dy );
1291
1292     // scale
1293     virtual void Scale( wxDouble xScale , wxDouble yScale );
1294
1295     // rotate (radians)
1296     virtual void Rotate( wxDouble angle );
1297
1298     // concatenates this transform with the current transform of this context
1299     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1300
1301     // sets the transform of this context
1302     virtual void SetTransform( const wxGraphicsMatrix& matrix );
1303
1304     // gets the matrix of this context
1305     virtual wxGraphicsMatrix GetTransform() const;
1306     //
1307     // setting the paint
1308     //
1309
1310     // strokes along a path with the current pen
1311     virtual void StrokePath( const wxGraphicsPath &path );
1312
1313     // fills a path with the current brush
1314     virtual void FillPath( const wxGraphicsPath &path, int fillStyle = wxODDEVEN_RULE );
1315
1316     // draws a path by first filling and then stroking
1317     virtual void DrawPath( const wxGraphicsPath &path, int fillStyle = wxODDEVEN_RULE );
1318
1319     virtual bool ShouldOffset() const
1320     {
1321         int penwidth = 0 ;
1322         if ( !m_pen.IsNull() )
1323         {
1324             penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1325             if ( penwidth == 0 )
1326                 penwidth = 1;
1327         }
1328         return ( penwidth % 2 ) == 1;
1329     }
1330     //
1331     // text
1332     //
1333
1334     virtual void DrawText( const wxString &str, wxDouble x, wxDouble y );
1335
1336     virtual void DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1337
1338     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1339         wxDouble *descent, wxDouble *externalLeading ) const;
1340
1341     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1342
1343     //
1344     // image support
1345     //
1346
1347     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1348
1349     virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1350
1351     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1352
1353     void SetNativeContext( CGContextRef cg );
1354
1355     DECLARE_NO_COPY_CLASS(wxMacCoreGraphicsContext)
1356     DECLARE_DYNAMIC_CLASS(wxMacCoreGraphicsContext)
1357
1358 private:
1359     void EnsureIsValid();
1360
1361     CGContextRef m_cgContext;
1362     WindowRef m_windowRef;
1363     bool m_releaseContext;
1364     CGAffineTransform m_windowTransform;
1365     wxDouble m_width;
1366     wxDouble m_height;
1367
1368     wxCFRef<HIShapeRef> m_clipRgn;
1369 };
1370
1371 //-----------------------------------------------------------------------------
1372 // device context implementation
1373 //
1374 // more and more of the dc functionality should be implemented by calling
1375 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1376 // also coordinate conversions should be moved to native matrix ops
1377 //-----------------------------------------------------------------------------
1378
1379 // we always stock two context states, one at entry, to be able to preserve the
1380 // state we were called with, the other one after changing to HI Graphics orientation
1381 // (this one is used for getting back clippings etc)
1382
1383 //-----------------------------------------------------------------------------
1384 // wxMacCoreGraphicsContext implementation
1385 //-----------------------------------------------------------------------------
1386
1387 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1388
1389 class wxQuartzOffsetHelper
1390 {
1391 public :
1392     wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1393     {
1394         m_cg = cg;
1395         m_offset = offset;
1396         if ( m_offset )
1397             CGContextTranslateCTM( m_cg, (CGFloat) 0.5, (CGFloat) 0.5 );
1398     }
1399     ~wxQuartzOffsetHelper( )
1400     {
1401         if ( m_offset )
1402             CGContextTranslateCTM( m_cg, (CGFloat) -0.5, (CGFloat) -0.5 );
1403     }
1404 public :
1405     CGContextRef m_cg;
1406     bool m_offset;
1407 } ;
1408
1409 void wxMacCoreGraphicsContext::Init()
1410 {
1411     m_cgContext = NULL;
1412     m_releaseContext = false;
1413     m_windowRef = NULL;
1414     m_width = 0;
1415     m_height = 0;
1416     CGRect r = CGRectMake(0,0,0,0);
1417     m_clipRgn.reset(HIShapeCreateWithRect(&r));
1418 }
1419
1420 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer)
1421 {
1422     Init();
1423     SetNativeContext(cgcontext);
1424     m_width = width;
1425     m_height = height;
1426 }
1427
1428 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1429 {
1430     Init();
1431     m_windowRef = window;
1432 }
1433
1434 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1435 {
1436     Init();
1437
1438     int originX , originY;
1439     originX = originY = 0;
1440
1441     Rect bounds = { 0,0,0,0 };
1442 #if defined( __LP64__ ) || defined(__WXCOCOA__)
1443 #else
1444     m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1445     window->MacWindowToRootWindow( &originX , &originY );
1446     GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1447 #endif
1448     m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1449     m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1450     m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1451 }
1452
1453 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1454 {
1455     Init();
1456 }
1457
1458 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1459 {
1460     Init();
1461     wxLogDebug(wxT("Illegal Constructor called"));
1462 }
1463
1464 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1465 {
1466     SetNativeContext(NULL);
1467 }
1468
1469 void wxMacCoreGraphicsContext::GetSize( wxDouble* width, wxDouble* height)
1470 {
1471     *width = m_width;
1472     *height = m_height;
1473 }
1474
1475
1476 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1477 {
1478     CGRect r;
1479     if ( width != 0 && height != 0)
1480         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) width  , (CGFloat) height );
1481     else
1482         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) m_width  , (CGFloat) m_height );
1483
1484     CGContextBeginPage(m_cgContext,  &r );
1485 //    CGContextTranslateCTM( m_cgContext , 0 ,  height == 0 ? m_height : height );
1486 //    CGContextScaleCTM( m_cgContext , 1 , -1 );
1487 }
1488
1489 void wxMacCoreGraphicsContext::EndPage()
1490 {
1491     CGContextEndPage(m_cgContext);
1492 }
1493
1494 void wxMacCoreGraphicsContext::Flush()
1495 {
1496     CGContextFlush(m_cgContext);
1497 }
1498
1499 void wxMacCoreGraphicsContext::EnsureIsValid()
1500 {
1501     if ( !m_cgContext )
1502     {
1503         OSStatus status =
1504 #if ! ( defined( __LP64__ ) || defined(__WXCOCOA__) )
1505             QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1506 #else
1507             paramErr;
1508 #endif
1509         if ( status != noErr )
1510         {
1511             wxFAIL_MSG("Cannot nest wxDCs on the same window");
1512         }
1513
1514         CGContextConcatCTM( m_cgContext, m_windowTransform );
1515         CGContextSaveGState( m_cgContext );
1516         m_releaseContext = true;
1517         if ( !HIShapeIsEmpty(m_clipRgn) )
1518         {
1519             // the clip region is in device coordinates, so we convert this again to user coordinates
1520             wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1521             CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero,m_windowTransform);
1522             HIShapeOffset( hishape, -transformedOrigin.x, -transformedOrigin.y );
1523             HIShapeReplacePathInCGContext( hishape, m_cgContext );
1524             CGContextClip( m_cgContext );
1525         }
1526         CGContextSaveGState( m_cgContext );
1527     }
1528 }
1529
1530 // TODO test whether the private CGContextSetCompositeOperation works under 10.3 (using NSCompositingModes)
1531
1532 bool wxMacCoreGraphicsContext::SetLogicalFunction( int function )
1533 {
1534     if (m_logicalFunction == function)
1535         return true;
1536
1537     EnsureIsValid();
1538
1539     bool retval = false;
1540     bool shouldAntiAlias = true;
1541     CGBlendMode mode = kCGBlendModeNormal;
1542
1543 #if defined(__WXMAC__) && ( MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 )
1544     if ( UMAGetSystemVersion() >= 0x1050 )
1545     {
1546         retval = true;
1547         switch ( function )
1548         {
1549             // TODO find best corresponding porter duff modes
1550             case wxCOPY :
1551                 mode = kCGBlendModeCopy;
1552                 break;
1553             case wxCLEAR :
1554                 mode = kCGBlendModeClear;
1555                 break;
1556             case wxXOR :
1557                 mode = kCGBlendModeXOR;
1558                 shouldAntiAlias = false;
1559                 break;
1560             default :
1561                 retval = false;
1562                 break;
1563         }
1564     }
1565     else
1566 #endif
1567     {
1568         if ( function == wxCOPY )
1569         {
1570             retval = true;
1571         }
1572         else if ( function == wxINVERT || function == wxXOR )
1573         {
1574             // change color to white
1575             mode = kCGBlendModeExclusion;
1576             shouldAntiAlias = false;
1577             retval = true;
1578         }
1579     }
1580
1581     if (retval)
1582     {
1583         m_logicalFunction = function;
1584         CGContextSetBlendMode( m_cgContext, mode );
1585         CGContextSetShouldAntialias(m_cgContext, shouldAntiAlias);
1586     }
1587     return retval ;
1588 }
1589
1590 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1591 {
1592 #ifdef __WXMAC__
1593     if( m_cgContext )
1594     {
1595         HIShapeReplacePathInCGContext( region.GetWXHRGN() , m_cgContext );
1596         CGContextClip( m_cgContext );
1597     }
1598     else
1599     {
1600         // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1601         // to regions we try at least to have correct translations
1602         HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1603
1604         CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1605         HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1606         m_clipRgn.reset(mutableShape);
1607     }
1608 #endif
1609 }
1610
1611 // clips drawings to the rect
1612 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1613 {
1614     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1615     if ( m_cgContext )
1616     {
1617         CGContextClipToRect( m_cgContext, r );
1618     }
1619     else
1620     {
1621         // the clipping itself must be stored as device coordinates, otherwise
1622         // we cannot apply it back correctly
1623         r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
1624         m_clipRgn.reset(HIShapeCreateWithRect(&r));
1625     }
1626 }
1627
1628     // resets the clipping to original extent
1629 void wxMacCoreGraphicsContext::ResetClip()
1630 {
1631     if ( m_cgContext )
1632     {
1633         // there is no way for clearing the clip, we can only revert to the stored
1634         // state, but then we have to make sure everything else is NOT restored
1635         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1636         CGContextRestoreGState( m_cgContext );
1637         CGContextSaveGState( m_cgContext );
1638         CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
1639         transformNew = CGAffineTransformInvert( transformNew ) ;
1640         CGContextConcatCTM( m_cgContext, transformNew);
1641         CGContextConcatCTM( m_cgContext, transform);
1642     }
1643     else
1644     {
1645         CGRect r = CGRectMake(0,0,0,0);
1646         m_clipRgn.reset(HIShapeCreateWithRect(&r));
1647     }
1648 }
1649
1650 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1651 {
1652     if ( m_pen.IsNull() )
1653         return ;
1654
1655     EnsureIsValid();
1656
1657     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1658
1659     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1660     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1661     CGContextStrokePath( m_cgContext );
1662 }
1663
1664 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , int fillStyle )
1665 {
1666     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1667     {
1668         // when using shading, we cannot draw pen and brush at the same time
1669         // revert to the base implementation of first filling and then stroking
1670         wxGraphicsContext::DrawPath( path, fillStyle );
1671         return;
1672     }
1673
1674     CGPathDrawingMode mode = kCGPathFill ;
1675     if ( m_brush.IsNull() )
1676     {
1677         if ( m_pen.IsNull() )
1678             return;
1679         else
1680             mode = kCGPathStroke;
1681     }
1682     else
1683     {
1684         if ( m_pen.IsNull() )
1685         {
1686             if ( fillStyle == wxODDEVEN_RULE )
1687                 mode = kCGPathEOFill;
1688             else
1689                 mode = kCGPathFill;
1690         }
1691         else
1692         {
1693             if ( fillStyle == wxODDEVEN_RULE )
1694                 mode = kCGPathEOFillStroke;
1695             else
1696                 mode = kCGPathFillStroke;
1697         }
1698     }
1699
1700     EnsureIsValid();
1701
1702     if ( !m_brush.IsNull() )
1703         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1704     if ( !m_pen.IsNull() )
1705         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1706
1707     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1708
1709     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1710     CGContextDrawPath( m_cgContext , mode );
1711 }
1712
1713 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , int fillStyle )
1714 {
1715     if ( m_brush.IsNull() )
1716         return;
1717
1718     EnsureIsValid();
1719
1720     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1721     {
1722         CGContextSaveGState( m_cgContext );
1723         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1724         CGContextClip( m_cgContext );
1725         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1726         CGContextRestoreGState( m_cgContext);
1727     }
1728     else
1729     {
1730         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1731         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1732         if ( fillStyle == wxODDEVEN_RULE )
1733             CGContextEOFillPath( m_cgContext );
1734         else
1735             CGContextFillPath( m_cgContext );
1736     }
1737 }
1738
1739 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
1740 {
1741     // we allow either setting or clearing but not replacing
1742     wxASSERT( m_cgContext == NULL || cg == NULL );
1743
1744     if ( m_cgContext )
1745     {
1746         // TODO : when is this necessary - should we add a Flush() method ? CGContextSynchronize( m_cgContext );
1747         CGContextRestoreGState( m_cgContext );
1748         CGContextRestoreGState( m_cgContext );
1749         if ( m_releaseContext )
1750         {
1751 #if ! ( defined( __LP64__ ) || defined(__WXCOCOA__) )
1752             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
1753 #endif
1754         }
1755         else
1756             CGContextRelease(m_cgContext);
1757     }
1758
1759
1760     m_cgContext = cg;
1761
1762     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
1763     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
1764     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
1765     // for this one operation.
1766
1767     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
1768     // can be removed.
1769     if (m_cgContext)
1770     {
1771         CGContextRetain(m_cgContext);
1772         CGContextSaveGState( m_cgContext );
1773         CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
1774         CGContextSaveGState( m_cgContext );
1775         m_releaseContext = false;
1776     }
1777 }
1778
1779 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
1780 {
1781     if ( m_cgContext )
1782         CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
1783     else
1784         m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
1785 }
1786
1787 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
1788 {
1789     if ( m_cgContext )
1790         CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
1791     else
1792         m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
1793 }
1794
1795 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
1796 {
1797     if ( m_cgContext )
1798         CGContextRotateCTM( m_cgContext , (CGFloat) angle );
1799     else
1800         m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
1801 }
1802
1803 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1804 {
1805     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
1806     DrawBitmap(bitmap, x, y, w, h);
1807 }
1808
1809 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1810 {
1811     EnsureIsValid();
1812 #ifdef __WXMAC__
1813     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
1814     CGImageRef image = refdata->GetBitmap();
1815     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1816     if ( refdata->IsMonochrome() == 1 )
1817     {
1818         // is is a mask, the '1' in the mask tell where to draw the current brush
1819         if (  !m_brush.IsNull() )
1820         {
1821             if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1822             {
1823                 // TODO clip to mask
1824             /*
1825                 CGContextSaveGState( m_cgContext );
1826                 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1827                 CGContextClip( m_cgContext );
1828                 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1829                 CGContextRestoreGState( m_cgContext);
1830             */
1831             }
1832             else
1833             {
1834                 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1835                 wxMacDrawCGImage( m_cgContext , &r , image );
1836             }
1837         }
1838     }
1839     else
1840     {
1841         wxMacDrawCGImage( m_cgContext , &r , image );
1842     }
1843 #endif
1844 }
1845
1846 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1847 {
1848     EnsureIsValid();
1849
1850     CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
1851     CGContextSaveGState( m_cgContext );
1852     CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
1853     CGContextScaleCTM( m_cgContext, 1, -1 );
1854 #ifdef __WXMAC__
1855     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
1856         NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) );
1857 #endif
1858     CGContextRestoreGState( m_cgContext );
1859 }
1860
1861 void wxMacCoreGraphicsContext::PushState()
1862 {
1863     EnsureIsValid();
1864
1865     CGContextSaveGState( m_cgContext );
1866 }
1867
1868 void wxMacCoreGraphicsContext::PopState()
1869 {
1870     EnsureIsValid();
1871
1872     CGContextRestoreGState( m_cgContext );
1873 }
1874
1875 void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
1876 {
1877     if ( m_font.IsNull() )
1878         return;
1879
1880     EnsureIsValid();
1881 #if wxMAC_USE_CORE_TEXT
1882     if ( UMAGetSystemVersion() >= 0x1050 )
1883     {
1884         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
1885         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
1886         CTFontRef font = fref->GetCTFont();
1887         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
1888         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
1889         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
1890          CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
1891         CFTypeRef values[] = { font, col, underlined };
1892         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
1893                                                         WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
1894         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
1895         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
1896
1897         y += CTFontGetAscent(font);
1898
1899         CGContextSaveGState(m_cgContext);
1900         CGContextTranslateCTM(m_cgContext, x, y);
1901         CGContextScaleCTM(m_cgContext, 1, -1);
1902         CGContextSetTextPosition(m_cgContext, 0, 0);
1903         CTLineDraw( line, m_cgContext );
1904         CGContextRestoreGState(m_cgContext);
1905         CFRelease( col );
1906         return;
1907     }
1908 #endif
1909 #if wxMAC_USE_ATSU_TEXT
1910     {
1911         DrawText(str, x, y, 0.0);
1912         return;
1913     }
1914 #endif
1915 #if wxMAC_USE_CG_TEXT
1916     // TODO core graphics text implementation here
1917 #endif
1918 }
1919
1920 void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle )
1921 {
1922     if ( m_font.IsNull() )
1923         return;
1924
1925     EnsureIsValid();
1926 #if wxMAC_USE_CORE_TEXT
1927     if ( UMAGetSystemVersion() >= 0x1050 )
1928     {
1929         // default implementation takes care of rotation and calls non rotated DrawText afterwards
1930         wxGraphicsContext::DrawText( str, x, y, angle );
1931         return;
1932     }
1933 #endif
1934 #if wxMAC_USE_ATSU_TEXT
1935     {
1936         OSStatus status = noErr;
1937         ATSUTextLayout atsuLayout;
1938         wxMacUniCharBuffer unibuf( str );
1939         UniCharCount chars = unibuf.GetChars();
1940
1941         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
1942         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
1943                                                    &chars , &style , &atsuLayout );
1944
1945         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
1946
1947         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
1948         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
1949
1950         int iAngle = int( angle * RAD2DEG );
1951         if ( abs(iAngle) > 0 )
1952         {
1953             Fixed atsuAngle = IntToFixed( iAngle );
1954             ATSUAttributeTag atsuTags[] =
1955             {
1956                 kATSULineRotationTag ,
1957             };
1958             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1959             {
1960                 sizeof( Fixed ) ,
1961             };
1962             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1963             {
1964                 &atsuAngle ,
1965             };
1966             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1967                                              atsuTags, atsuSizes, atsuValues );
1968         }
1969
1970         {
1971             ATSUAttributeTag atsuTags[] =
1972             {
1973                 kATSUCGContextTag ,
1974             };
1975             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1976             {
1977                 sizeof( CGContextRef ) ,
1978             };
1979             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1980             {
1981                 &m_cgContext ,
1982             };
1983             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1984                                              atsuTags, atsuSizes, atsuValues );
1985         }
1986
1987         ATSUTextMeasurement textBefore, textAfter;
1988         ATSUTextMeasurement ascent, descent;
1989
1990         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1991                                             &textBefore , &textAfter, &ascent , &descent );
1992
1993         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1994
1995         Rect rect;
1996         x += (int)(sin(angle) * FixedToInt(ascent));
1997         y += (int)(cos(angle) * FixedToInt(ascent));
1998
1999         status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2000                                         IntToFixed(x) , IntToFixed(y) , &rect );
2001         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2002
2003         CGContextSaveGState(m_cgContext);
2004         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2005         CGContextScaleCTM(m_cgContext, 1, -1);
2006         status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2007                                 IntToFixed(0) , IntToFixed(0) );
2008
2009         wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2010
2011         CGContextRestoreGState(m_cgContext);
2012
2013         ::ATSUDisposeTextLayout(atsuLayout);
2014
2015         return;
2016     }
2017 #endif
2018 #if wxMAC_USE_CG_TEXT
2019     // default implementation takes care of rotation and calls non rotated DrawText afterwards
2020     wxGraphicsContext::DrawText( str, x, y, angle );
2021 #endif
2022 }
2023
2024 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2025                             wxDouble *descent, wxDouble *externalLeading ) const
2026 {
2027     wxCHECK_RET( !m_font.IsNull(), wxT("wxDC(cg)::DoGetTextExtent - no valid font set") );
2028
2029     if ( width )
2030         *width = 0;
2031     if ( height )
2032         *height = 0;
2033     if ( descent )
2034         *descent = 0;
2035     if ( externalLeading )
2036         *externalLeading = 0;
2037
2038     if (str.empty())
2039         return;
2040
2041 #if wxMAC_USE_CORE_TEXT
2042     if ( UMAGetSystemVersion() >= 0x1050 )
2043     {
2044         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2045         CTFontRef font = fref->GetCTFont();
2046
2047         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2048         CFStringRef keys[] = { kCTFontAttributeName  };
2049         CFTypeRef values[] = { font };
2050         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2051                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2052         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2053         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2054
2055         CGFloat w, a, d, l;
2056
2057         w = CTLineGetTypographicBounds(line, &a, &d, &l) ;
2058
2059         if ( height )
2060             *height = a+d+l;
2061         if ( descent )
2062             *descent = d;
2063         if ( externalLeading )
2064             *externalLeading = l;
2065         if ( width )
2066             *width = w;
2067         return;
2068     }
2069 #endif
2070 #if wxMAC_USE_ATSU_TEXT
2071     {
2072         OSStatus status = noErr;
2073
2074         ATSUTextLayout atsuLayout;
2075         wxMacUniCharBuffer unibuf( str );
2076         UniCharCount chars = unibuf.GetChars();
2077
2078         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2079         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2080                                                    &chars , &style , &atsuLayout );
2081
2082         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2083
2084         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2085         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2086
2087         ATSUTextMeasurement textBefore, textAfter;
2088         ATSUTextMeasurement textAscent, textDescent;
2089
2090         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2091                                             &textBefore , &textAfter, &textAscent , &textDescent );
2092
2093         if ( height )
2094             *height = FixedToInt(textAscent + textDescent);
2095         if ( descent )
2096             *descent = FixedToInt(textDescent);
2097         if ( externalLeading )
2098             *externalLeading = 0;
2099         if ( width )
2100             *width = FixedToInt(textAfter - textBefore);
2101
2102         ::ATSUDisposeTextLayout(atsuLayout);
2103
2104         return;
2105     }
2106 #endif
2107 #if wxMAC_USE_CG_TEXT
2108     // TODO core graphics text implementation here
2109 #endif
2110 }
2111
2112 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2113 {
2114     widths.Empty();
2115     widths.Add(0, text.length());
2116
2117     if (text.empty())
2118         return;
2119
2120 #if wxMAC_USE_CORE_TEXT
2121     {
2122         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2123         CTFontRef font = fref->GetCTFont();
2124
2125         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2126         CFStringRef keys[] = { kCTFontAttributeName  };
2127         CFTypeRef values[] = { font };
2128         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2129                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2130         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2131         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2132
2133         int chars = text.length();
2134         for ( int pos = 0; pos < (int)chars; pos ++ )
2135         {
2136             widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5;
2137         }
2138
2139         return;
2140     }
2141 #endif
2142 #if wxMAC_USE_ATSU_TEXT
2143     {
2144         OSStatus status = noErr;
2145         ATSUTextLayout atsuLayout;
2146         wxMacUniCharBuffer unibuf( text );
2147         UniCharCount chars = unibuf.GetChars();
2148
2149         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2150         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2151                                           &chars , &style , &atsuLayout );
2152
2153         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2154
2155         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2156         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2157
2158 // new implementation from JS, keep old one just in case
2159 #if 0
2160         for ( int pos = 0; pos < (int)chars; pos ++ )
2161         {
2162             unsigned long actualNumberOfBounds = 0;
2163             ATSTrapezoid glyphBounds;
2164
2165             // We get a single bound, since the text should only require one. If it requires more, there is an issue
2166             OSStatus result;
2167             result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2168                                         kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2169             if (result != noErr || actualNumberOfBounds != 1 )
2170                 return;
2171
2172             widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2173             //unsigned char uch = s[i];
2174         }
2175 #else
2176         ATSLayoutRecord *layoutRecords = NULL;
2177         ItemCount glyphCount = 0;
2178
2179         // Get the glyph extents
2180         OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2181                                                                        0,
2182                                                                        kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2183                                                                        (void **)
2184                                                                        &layoutRecords,
2185                                                                        &glyphCount);
2186         wxASSERT(glyphCount == (text.length()+1));
2187
2188         if ( err == noErr && glyphCount == (text.length()+1))
2189         {
2190             for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2191             {
2192                 widths[pos-1] = FixedToInt( layoutRecords[pos].realPos );
2193             }
2194         }
2195
2196         ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2197                                               kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2198                                               (void **) &layoutRecords);
2199 #endif
2200         ::ATSUDisposeTextLayout(atsuLayout);
2201     }
2202 #endif
2203 #if wxMAC_USE_CG_TEXT
2204     // TODO core graphics text implementation here
2205 #endif
2206 }
2207
2208 void * wxMacCoreGraphicsContext::GetNativeContext()
2209 {
2210     return m_cgContext;
2211 }
2212
2213 // concatenates this transform with the current transform of this context
2214 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2215 {
2216     if ( m_cgContext )
2217         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2218     else
2219         m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
2220 }
2221
2222 // sets the transform of this context
2223 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2224 {
2225     if ( m_cgContext )
2226     {
2227         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2228         transform = CGAffineTransformInvert( transform ) ;
2229         CGContextConcatCTM( m_cgContext, transform);
2230         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2231     }
2232     else
2233     {
2234         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2235     }
2236 }
2237
2238 // gets the matrix of this context
2239 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2240 {
2241     wxGraphicsMatrix m = CreateMatrix();
2242     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2243         CGContextGetCTM( m_cgContext ));
2244     return m;
2245 }
2246
2247 //
2248 // Renderer
2249 //
2250
2251 //-----------------------------------------------------------------------------
2252 // wxMacCoreGraphicsRenderer declaration
2253 //-----------------------------------------------------------------------------
2254
2255 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2256 {
2257 public :
2258     wxMacCoreGraphicsRenderer() {}
2259
2260     virtual ~wxMacCoreGraphicsRenderer() {}
2261
2262     // Context
2263
2264     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2265     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2266     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2267
2268     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2269
2270     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2271
2272     virtual wxGraphicsContext * CreateContext( wxWindow* window );
2273
2274     virtual wxGraphicsContext * CreateMeasuringContext();
2275
2276     // Path
2277
2278     virtual wxGraphicsPath CreatePath();
2279
2280     // Matrix
2281
2282     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2283         wxDouble tx=0.0, wxDouble ty=0.0);
2284
2285
2286     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2287
2288     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2289
2290     // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2291     virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2292         const wxColour&c1, const wxColour&c2) ;
2293
2294     // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2295     // with radius r and color cColor
2296     virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2297         const wxColour &oColor, const wxColour &cColor) ;
2298
2299    // sets the font
2300     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2301
2302     // create a native bitmap representation
2303     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2304
2305     // create a native bitmap representation
2306     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
2307 private :
2308     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2309 } ;
2310
2311 //-----------------------------------------------------------------------------
2312 // wxMacCoreGraphicsRenderer implementation
2313 //-----------------------------------------------------------------------------
2314
2315 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2316
2317 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2318
2319 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2320 {
2321     return &gs_MacCoreGraphicsRenderer;
2322 }
2323
2324 #ifdef __WXCOCOA__
2325 extern CGContextRef wxMacGetContextFromCurrentNSContext() ;
2326 #endif
2327
2328 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2329 {
2330     const wxDCImpl* impl = dc.GetImpl();
2331     wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2332     if (win_impl)
2333     {
2334         int w, h;
2335         win_impl->GetSize( &w, &h );
2336         CGContextRef cgctx = 0;
2337 #ifdef __WXMAC__
2338         cgctx =  (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2339 #else
2340         cgctx = wxMacGetContextFromCurrentNSContext() ;
2341 #endif
2342         return new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2343     }
2344     return NULL;
2345 }
2346
2347 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2348 {
2349 #ifdef __WXMAC__
2350     const wxDCImpl* impl = dc.GetImpl();
2351     wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2352     if (mem_impl)
2353     {
2354         int w, h;
2355         mem_impl->GetSize( &w, &h );
2356         return new wxMacCoreGraphicsContext( this,
2357             (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2358     }
2359 #endif
2360     return NULL;
2361 }
2362
2363 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2364 {
2365 #ifdef __WXMAC__
2366     const wxDCImpl* impl = dc.GetImpl();
2367     wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2368     if (print_impl)
2369     {
2370         int w, h;
2371         print_impl->GetSize( &w, &h );
2372         return new wxMacCoreGraphicsContext( this,
2373             (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2374     }
2375 #endif
2376     return NULL;
2377 }
2378
2379 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2380 {
2381     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2382 }
2383
2384
2385 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2386 {
2387     return new wxMacCoreGraphicsContext(this,(WindowRef)window);
2388 }
2389
2390 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
2391 {
2392     return new wxMacCoreGraphicsContext(this, window );
2393 }
2394
2395 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
2396 {
2397     return new wxMacCoreGraphicsContext(this);
2398 }
2399
2400 // Path
2401
2402 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
2403 {
2404     wxGraphicsPath m;
2405     m.SetRefData( new wxMacCoreGraphicsPathData(this));
2406     return m;
2407 }
2408
2409
2410 // Matrix
2411
2412 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
2413     wxDouble tx, wxDouble ty)
2414 {
2415     wxGraphicsMatrix m;
2416     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
2417     data->Set( a,b,c,d,tx,ty ) ;
2418     m.SetRefData(data);
2419     return m;
2420 }
2421
2422 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
2423 {
2424     if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
2425         return wxNullGraphicsPen;
2426     else
2427     {
2428         wxGraphicsPen p;
2429         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
2430         return p;
2431     }
2432 }
2433
2434 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
2435 {
2436     if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
2437         return wxNullGraphicsBrush;
2438     else
2439     {
2440         wxGraphicsBrush p;
2441         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
2442         return p;
2443     }
2444 }
2445
2446 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
2447 {
2448     if ( bmp.Ok() )
2449     {
2450         wxGraphicsBitmap p;
2451 #ifdef __WXMAC__
2452         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
2453 #endif
2454         return p;
2455     }
2456     else
2457         return wxNullGraphicsBitmap;
2458 }
2459
2460 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
2461 {
2462     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2463     CGImageRef img = refdata->GetBitmap();
2464     if ( img )
2465     {
2466         wxGraphicsBitmap p;
2467         CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h ));
2468         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg, refdata->IsMonochrome() ) );
2469         return p;
2470     }
2471     else
2472         return wxNullGraphicsBitmap;
2473 }
2474
2475 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2476 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2477     const wxColour&c1, const wxColour&c2)
2478 {
2479     wxGraphicsBrush p;
2480     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2481     d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
2482     p.SetRefData(d);
2483     return p;
2484 }
2485
2486 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2487 // with radius r and color cColor
2488 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2489     const wxColour &oColor, const wxColour &cColor)
2490 {
2491     wxGraphicsBrush p;
2492     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2493     d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
2494     p.SetRefData(d);
2495     return p;
2496 }
2497
2498 // sets the font
2499 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
2500 {
2501     if ( font.Ok() )
2502     {
2503         wxGraphicsFont p;
2504         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
2505         return p;
2506     }
2507     else
2508         return wxNullGraphicsFont;
2509 }
2510
2511 //
2512 // CoreGraphics Helper Methods
2513 //
2514
2515 // Data Providers and Consumers
2516
2517 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
2518 {
2519     CFMutableDataRef data = (CFMutableDataRef) info;
2520     if ( data )
2521     {
2522         CFDataAppendBytes( data, (const UInt8*) bytes, count );
2523     }
2524     return count;
2525 }
2526
2527 void wxMacReleaseCFDataProviderCallback(void *info,
2528                                       const void *WXUNUSED(data),
2529                                       size_t WXUNUSED(count))
2530 {
2531     if ( info )
2532         CFRelease( (CFDataRef) info );
2533 }
2534
2535 void wxMacReleaseCFDataConsumerCallback( void *info )
2536 {
2537     if ( info )
2538         CFRelease( (CFDataRef) info );
2539 }
2540
2541 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
2542 {
2543     if ( data == NULL )
2544         return NULL;
2545
2546     return CGDataProviderCreateWithCFData( data );
2547 }
2548
2549 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
2550 {
2551     if ( data == NULL )
2552         return NULL;
2553
2554     return CGDataConsumerCreateWithCFData( data );
2555 }
2556
2557 void
2558 wxMacReleaseMemoryBufferProviderCallback(void *info,
2559                                          const void * WXUNUSED_UNLESS_DEBUG(data),
2560                                          size_t WXUNUSED(size))
2561 {
2562     wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
2563
2564     wxASSERT( data == membuf->GetData() ) ;
2565
2566     delete membuf ;
2567 }
2568
2569 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
2570 {
2571     wxMemoryBuffer* b = new wxMemoryBuffer( buf );
2572     if ( b->GetDataLen() == 0 )
2573         return NULL;
2574
2575     return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
2576                                                  wxMacReleaseMemoryBufferProviderCallback );
2577 }