src/osx/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/dcprint.h"
  21     #include "wx/log.h"
  22     #include "wx/region.h"
  23     #include "wx/image.h"
  24     #include "wx/icon.h"
  25 #endif
  26
  27
  28 #ifdef __MSL__
  29     #if __MSL__ >= 0x6000
  30         #include "math.h"
  31         // in case our functions were defined outside std, we make it known all the same
  32         namespace std { }
  33         using namespace std;
  34     #endif
  35 #endif
  36
  37 #ifdef __WXMAC__
  38     #include "wx/osx/uma.h"
  39     #include "wx/osx/dcprint.h"
  40 #else
  41     #include "CoreServices/CoreServices.h"
  42     #include "ApplicationServices/ApplicationServices.h"
  43     #include "wx/osx/core/cfstring.h"
  44     #include "wx/cocoa/dcclient.h"
  45 #endif
  46
  47 #ifdef __WXCOCOA__
  48
  49 CGColorSpaceRef wxMacGetGenericRGBColorSpace()
  50 {
  51     static wxCFRef<CGColorSpaceRef> genericRGBColorSpace;
  52
  53     if (genericRGBColorSpace == NULL)
  54     {
  55         genericRGBColorSpace.reset( CGColorSpaceCreateWithName( kCGColorSpaceGenericRGB ) );
  56     }
  57
  58     return genericRGBColorSpace;
  59 }
  60
  61 int UMAGetSystemVersion()
  62 {
  63     return 0x1050;
  64 }
  65
  66
  67 #define wxMAC_USE_CORE_TEXT 1
  68
  69 #endif
  70
  71 //-----------------------------------------------------------------------------
  72 // constants
  73 //-----------------------------------------------------------------------------
  74
  75 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
  76 #ifndef M_PI
  77 const double M_PI = 3.14159265358979;
  78 #endif
  79 #endif
  80
  81 static const double RAD2DEG = 180.0 / M_PI;
  82
  83 //
  84 // Pen, Brushes and Fonts
  85 //
  86
  87 #pragma mark -
  88 #pragma mark wxMacCoreGraphicsPattern, ImagePattern, HatchPattern classes
  89
  90 OSStatus wxMacDrawCGImage(
  91                   CGContextRef    inContext,
  92                   const CGRect *  inBounds,
  93                   CGImageRef      inImage)
  94 {
  95 #if defined( __LP64__ ) || defined(__WXCOCOA__)
  96     // todo flip
  97     CGContextDrawImage(inContext, *inBounds, inImage );
  98     return noErr;
  99 #else
 100     return HIViewDrawCGImage( inContext, inBounds, inImage );
 101 #endif
 102 }
 103
 104 CGColorRef wxMacCreateCGColor( const wxColour& col )
 105 {
 106     CGColorRef retval = 0;
 107 #ifdef __WXMAC__
 108     retval = col.CreateCGColor();
 109 #else
 110 // TODO add conversion NSColor - CGColorRef (obj-c)
 111 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
 112     if ( CGColorCreateGenericRGB )
 113         retval = CGColorCreateGenericRGB( col.Red() / 255.0 , col.Green() / 255.0, col.Blue() / 255.0, col.Alpha() / 255.0 );
 114     else
 115 #endif
 116     {
 117         CGFloat components[4] = { col.Red() / 255.0, col.Green() / 255.0, col.Blue()  / 255.0, col.Alpha() / 255.0 } ;
 118         retval = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
 119     }
 120
 121 #endif
 122     return retval;
 123 }
 124
 125 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 && defined(wxMAC_USE_CORE_TEXT)
 126
 127 CTFontRef wxMacCreateCTFont( const wxFont& font )
 128 {
 129 #ifdef __WXMAC__
 130     return wxCFRetain((CTFontRef) font.MacGetCTFont());
 131 #else
 132     return CTFontCreateWithName( wxCFStringRef( font.GetFaceName(), wxLocale::GetSystemEncoding() ) , font.GetPointSize() , NULL );
 133 #endif
 134 }
 135
 136 #endif
 137
 138 // CGPattern wrapper class: always allocate on heap, never call destructor
 139
 140 class wxMacCoreGraphicsPattern
 141 {
 142 public :
 143     wxMacCoreGraphicsPattern() {}
 144
 145     // is guaranteed to be called only with a non-Null CGContextRef
 146     virtual void Render( CGContextRef ctxRef ) = 0;
 147
 148     operator CGPatternRef() const { return m_patternRef; }
 149
 150 protected :
 151     virtual ~wxMacCoreGraphicsPattern()
 152     {
 153         // as this is called only when the m_patternRef is been released;
 154         // don't release it again
 155     }
 156
 157     static void _Render( void *info, CGContextRef ctxRef )
 158     {
 159         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 160         if ( self && ctxRef )
 161             self->Render( ctxRef );
 162     }
 163
 164     static void _Dispose( void *info )
 165     {
 166         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 167         delete self;
 168     }
 169
 170     CGPatternRef m_patternRef;
 171
 172     static const CGPatternCallbacks ms_Callbacks;
 173 };
 174
 175 const CGPatternCallbacks wxMacCoreGraphicsPattern::ms_Callbacks = { 0, &wxMacCoreGraphicsPattern::_Render, &wxMacCoreGraphicsPattern::_Dispose };
 176
 177 class ImagePattern : public wxMacCoreGraphicsPattern
 178 {
 179 public :
 180     ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
 181     {
 182         wxASSERT( bmp && bmp->Ok() );
 183 #ifdef __WXMAC__
 184         Init( (CGImageRef) bmp->CreateCGImage() , transform );
 185 #endif
 186     }
 187
 188     // ImagePattern takes ownership of CGImageRef passed in
 189     ImagePattern( CGImageRef image , const CGAffineTransform& transform )
 190     {
 191         if ( image )
 192             CFRetain( image );
 193
 194         Init( image , transform );
 195     }
 196
 197     virtual void Render( CGContextRef ctxRef )
 198     {
 199         if (m_image != NULL)
 200             wxMacDrawCGImage( ctxRef, &m_imageBounds, m_image );
 201     }
 202
 203 protected :
 204     void Init( CGImageRef image, const CGAffineTransform& transform )
 205     {
 206         m_image = image;
 207         if ( m_image )
 208         {
 209             m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) );
 210             m_patternRef = CGPatternCreate(
 211                 this , m_imageBounds, transform ,
 212                 m_imageBounds.size.width, m_imageBounds.size.height,
 213                 kCGPatternTilingNoDistortion, true , &wxMacCoreGraphicsPattern::ms_Callbacks );
 214         }
 215     }
 216
 217     virtual ~ImagePattern()
 218     {
 219         if ( m_image )
 220             CGImageRelease( m_image );
 221     }
 222
 223     CGImageRef m_image;
 224     CGRect m_imageBounds;
 225 };
 226
 227 class HatchPattern : public wxMacCoreGraphicsPattern
 228 {
 229 public :
 230     HatchPattern( int hatchstyle, const CGAffineTransform& transform )
 231     {
 232         m_hatch = hatchstyle;
 233         m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat) 8.0 , (CGFloat) 8.0 );
 234         m_patternRef = CGPatternCreate(
 235             this , m_imageBounds, transform ,
 236             m_imageBounds.size.width, m_imageBounds.size.height,
 237             kCGPatternTilingNoDistortion, false , &wxMacCoreGraphicsPattern::ms_Callbacks );
 238     }
 239
 240     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 241     {
 242         CGContextStrokeLineSegments( ctxRef , pts , count );
 243     }
 244
 245     virtual void Render( CGContextRef ctxRef )
 246     {
 247         switch ( m_hatch )
 248         {
 249             case wxBDIAGONAL_HATCH :
 250                 {
 251                     CGPoint pts[] =
 252                     {
 253                     { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 254                     };
 255                     StrokeLineSegments( ctxRef , pts , 2 );
 256                 }
 257                 break;
 258
 259             case wxCROSSDIAG_HATCH :
 260                 {
 261                     CGPoint pts[] =
 262                     {
 263                         { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 } ,
 264                         { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 265                     };
 266                     StrokeLineSegments( ctxRef , pts , 4 );
 267                 }
 268                 break;
 269
 270             case wxFDIAGONAL_HATCH :
 271                 {
 272                     CGPoint pts[] =
 273                     {
 274                     { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 }
 275                     };
 276                     StrokeLineSegments( ctxRef , pts , 2 );
 277                 }
 278                 break;
 279
 280             case wxCROSS_HATCH :
 281                 {
 282                     CGPoint pts[] =
 283                     {
 284                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 285                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 286                     };
 287                     StrokeLineSegments( ctxRef , pts , 4 );
 288                 }
 289                 break;
 290
 291             case wxHORIZONTAL_HATCH :
 292                 {
 293                     CGPoint pts[] =
 294                     {
 295                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 296                     };
 297                     StrokeLineSegments( ctxRef , pts , 2 );
 298                 }
 299                 break;
 300
 301             case wxVERTICAL_HATCH :
 302                 {
 303                     CGPoint pts[] =
 304                     {
 305                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 306                     };
 307                     StrokeLineSegments( ctxRef , pts , 2 );
 308                 }
 309                 break;
 310
 311             default:
 312                 break;
 313         }
 314     }
 315
 316 protected :
 317     virtual ~HatchPattern() {}
 318
 319     CGRect      m_imageBounds;
 320     int         m_hatch;
 321 };
 322
 323 class wxMacCoreGraphicsPenData : public wxGraphicsObjectRefData
 324 {
 325 public:
 326     wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
 327     ~wxMacCoreGraphicsPenData();
 328
 329     void Init();
 330     virtual void Apply( wxGraphicsContext* context );
 331     virtual wxDouble GetWidth() { return m_width; }
 332
 333 protected :
 334     CGLineCap m_cap;
 335     wxCFRef<CGColorRef> m_color;
 336     wxCFRef<CGColorSpaceRef> m_colorSpace;
 337
 338     CGLineJoin m_join;
 339     CGFloat m_width;
 340
 341     int m_count;
 342     const CGFloat *m_lengths;
 343     CGFloat *m_userLengths;
 344
 345
 346     bool m_isPattern;
 347     wxCFRef<CGPatternRef> m_pattern;
 348     CGFloat* m_patternColorComponents;
 349 };
 350
 351 wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) :
 352     wxGraphicsObjectRefData( renderer )
 353 {
 354     Init();
 355
 356     m_color.reset( wxMacCreateCGColor( pen.GetColour() ) ) ;
 357
 358     // TODO: * m_dc->m_scaleX
 359     m_width = pen.GetWidth();
 360     if (m_width <= 0.0)
 361         m_width = (CGFloat) 0.1;
 362
 363     switch ( pen.GetCap() )
 364     {
 365         case wxCAP_ROUND :
 366             m_cap = kCGLineCapRound;
 367             break;
 368
 369         case wxCAP_PROJECTING :
 370             m_cap = kCGLineCapSquare;
 371             break;
 372
 373         case wxCAP_BUTT :
 374             m_cap = kCGLineCapButt;
 375             break;
 376
 377         default :
 378             m_cap = kCGLineCapButt;
 379             break;
 380     }
 381
 382     switch ( pen.GetJoin() )
 383     {
 384         case wxJOIN_BEVEL :
 385             m_join = kCGLineJoinBevel;
 386             break;
 387
 388         case wxJOIN_MITER :
 389             m_join = kCGLineJoinMiter;
 390             break;
 391
 392         case wxJOIN_ROUND :
 393             m_join = kCGLineJoinRound;
 394             break;
 395
 396         default :
 397             m_join = kCGLineJoinMiter;
 398             break;
 399     }
 400
 401     const CGFloat dashUnit = m_width < 1.0 ? (CGFloat) 1.0 : m_width;
 402
 403     const CGFloat dotted[] = { (CGFloat) dashUnit , (CGFloat) (dashUnit + 2.0) };
 404     static const CGFloat short_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 };
 405     static const CGFloat dashed[] = { (CGFloat) 19.0 , (CGFloat) 9.0 };
 406     static const CGFloat dotted_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 , (CGFloat) 3.0 , (CGFloat) 3.0 };
 407
 408     switch ( pen.GetStyle() )
 409     {
 410         case wxSOLID :
 411             break;
 412
 413         case wxDOT :
 414             m_count = WXSIZEOF(dotted);
 415             m_userLengths = new CGFloat[ m_count ] ;
 416             memcpy( m_userLengths, dotted, sizeof(dotted) );
 417             m_lengths = m_userLengths;
 418             break;
 419
 420         case wxLONG_DASH :
 421             m_count = WXSIZEOF(dashed);
 422             m_lengths = dashed;
 423             break;
 424
 425         case wxSHORT_DASH :
 426             m_count = WXSIZEOF(short_dashed);
 427             m_lengths = short_dashed;
 428             break;
 429
 430         case wxDOT_DASH :
 431             m_count = WXSIZEOF(dotted_dashed);
 432             m_lengths = dotted_dashed;
 433             break;
 434
 435         case wxUSER_DASH :
 436             wxDash *dashes;
 437             m_count = pen.GetDashes( &dashes );
 438             if ((dashes != NULL) && (m_count > 0))
 439             {
 440                 m_userLengths = new CGFloat[m_count];
 441                 for ( int i = 0; i < m_count; ++i )
 442                 {
 443                     m_userLengths[i] = dashes[i] * dashUnit;
 444
 445                     if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
 446                         m_userLengths[i] = (CGFloat) (dashUnit + 2.0);
 447                     else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
 448                         m_userLengths[i] = dashUnit;
 449                 }
 450             }
 451             m_lengths = m_userLengths;
 452             break;
 453
 454         case wxSTIPPLE :
 455             {
 456                 wxBitmap* bmp = pen.GetStipple();
 457                 if ( bmp && bmp->Ok() )
 458                 {
 459                     m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 460                     m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 461                     m_patternColorComponents = new CGFloat[1] ;
 462                     m_patternColorComponents[0] = (CGFloat) 1.0;
 463                     m_isPattern = true;
 464                 }
 465             }
 466             break;
 467
 468         default :
 469             {
 470                 m_isPattern = true;
 471                 m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 472                 m_pattern.reset( (CGPatternRef) *( new HatchPattern( pen.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 473                 m_patternColorComponents = new CGFloat[4] ;
 474                 m_patternColorComponents[0] = (CGFloat) (pen.GetColour().Red() / 255.0);
 475                 m_patternColorComponents[1] = (CGFloat) (pen.GetColour().Green() / 255.0);
 476                 m_patternColorComponents[2] = (CGFloat) (pen.GetColour().Blue() / 255.0);
 477                 m_patternColorComponents[3] =  (CGFloat) (pen.GetColour().Alpha() / 255.0);
 478             }
 479             break;
 480     }
 481     if ((m_lengths != NULL) && (m_count > 0))
 482     {
 483         // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 484         m_cap = kCGLineCapButt;
 485     }
 486 }
 487
 488 wxMacCoreGraphicsPenData::~wxMacCoreGraphicsPenData()
 489 {
 490     delete[] m_userLengths;
 491     delete[] m_patternColorComponents;
 492 }
 493
 494 void wxMacCoreGraphicsPenData::Init()
 495 {
 496     m_lengths = NULL;
 497     m_userLengths = NULL;
 498     m_width = 0;
 499     m_count = 0;
 500     m_patternColorComponents = NULL;
 501     m_isPattern = false;
 502 }
 503
 504 void wxMacCoreGraphicsPenData::Apply( wxGraphicsContext* context )
 505 {
 506     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 507     CGContextSetLineWidth( cg , m_width );
 508     CGContextSetLineJoin( cg , m_join );
 509
 510     CGContextSetLineDash( cg , 0 , m_lengths , m_count );
 511     CGContextSetLineCap( cg , m_cap );
 512
 513     if ( m_isPattern )
 514     {
 515         CGAffineTransform matrix = CGContextGetCTM( cg );
 516         CGContextSetPatternPhase( cg, CGSizeMake(matrix.tx, matrix.ty) );
 517         CGContextSetStrokeColorSpace( cg , m_colorSpace );
 518         CGContextSetStrokePattern( cg, m_pattern , m_patternColorComponents );
 519     }
 520     else
 521     {
 522         if ( context->GetLogicalFunction() == wxINVERT || context->GetLogicalFunction() == wxXOR )
 523         {
 524             CGContextSetRGBStrokeColor( cg , (CGFloat) 1.0,(CGFloat)  1.0 , (CGFloat) 1.0, (CGFloat) 1.0 );
 525         }
 526         else
 527             CGContextSetStrokeColorWithColor( cg , m_color );
 528     }
 529 }
 530
 531 //
 532 // Brush
 533 //
 534
 535 static const char *gs_stripedback_xpm[] = {
 536 /* columns rows colors chars-per-pixel */
 537 "4 4 2 1",
 538 ". c #F0F0F0",
 539 "X c #ECECEC",
 540 /* pixels */
 541 "....",
 542 "....",
 543 "XXXX",
 544 "XXXX"
 545 };
 546
 547 wxBitmap gs_stripedback_bmp( wxImage( (const char* const* ) gs_stripedback_xpm  ), -1 ) ;
 548
 549 // make sure we all use one class for all conversions from wx to native colour
 550
 551 class wxMacCoreGraphicsColour
 552 {
 553     public:
 554         wxMacCoreGraphicsColour();
 555         wxMacCoreGraphicsColour(const wxBrush &brush);
 556         ~wxMacCoreGraphicsColour();
 557
 558         void Apply( CGContextRef cgContext );
 559     protected:
 560         void Init();
 561         wxCFRef<CGColorRef> m_color;
 562         wxCFRef<CGColorSpaceRef> m_colorSpace;
 563
 564         bool m_isPattern;
 565         wxCFRef<CGPatternRef> m_pattern;
 566         CGFloat* m_patternColorComponents;
 567 } ;
 568
 569 wxMacCoreGraphicsColour::~wxMacCoreGraphicsColour()
 570 {
 571     delete[] m_patternColorComponents;
 572 }
 573
 574 void wxMacCoreGraphicsColour::Init()
 575 {
 576     m_isPattern = false;
 577     m_patternColorComponents = NULL;
 578 }
 579
 580 void wxMacCoreGraphicsColour::Apply( CGContextRef cgContext )
 581 {
 582     if ( m_isPattern )
 583     {
 584         CGAffineTransform matrix = CGContextGetCTM( cgContext );
 585         CGContextSetPatternPhase( cgContext, CGSizeMake(matrix.tx, matrix.ty) );
 586         CGContextSetFillColorSpace( cgContext , m_colorSpace );
 587         CGContextSetFillPattern( cgContext, m_pattern , m_patternColorComponents );
 588     }
 589     else
 590     {
 591         CGContextSetFillColorWithColor( cgContext, m_color );
 592     }
 593 }
 594
 595 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour()
 596 {
 597     Init();
 598 }
 599
 600 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour( const wxBrush &brush )
 601 {
 602     Init();
 603     if ( brush.GetStyle() == wxSOLID )
 604     {
 605         m_color.reset( wxMacCreateCGColor( brush.GetColour() ));
 606     }
 607     else if ( brush.IsHatch() )
 608     {
 609         m_isPattern = true;
 610         m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 611         m_pattern.reset( (CGPatternRef) *( new HatchPattern( brush.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 612
 613         m_patternColorComponents = new CGFloat[4] ;
 614         m_patternColorComponents[0] = (CGFloat) (brush.GetColour().Red() / 255.0);
 615         m_patternColorComponents[1] = (CGFloat) (brush.GetColour().Green() / 255.0);
 616         m_patternColorComponents[2] = (CGFloat) (brush.GetColour().Blue() / 255.0);
 617         m_patternColorComponents[3] = (CGFloat) (brush.GetColour().Alpha() / 255.0);
 618     }
 619     else
 620     {
 621         // now brush is a bitmap
 622         wxBitmap* bmp = brush.GetStipple();
 623         if ( bmp && bmp->Ok() )
 624         {
 625             m_isPattern = true;
 626             m_patternColorComponents = new CGFloat[1] ;
 627             m_patternColorComponents[0] = (CGFloat) 1.0;
 628             m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 629             m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 630         }
 631     }
 632 }
 633
 634 class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
 635 {
 636 public:
 637     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
 638     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
 639     ~wxMacCoreGraphicsBrushData ();
 640
 641     virtual void Apply( wxGraphicsContext* context );
 642     void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 643         const wxColour&c1, const wxColour&c2 );
 644     void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 645     const wxColour &oColor, const wxColour &cColor );
 646
 647     virtual bool IsShading() { return m_isShading; }
 648     CGShadingRef GetShading() { return m_shading; }
 649 protected:
 650     CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 );
 651     static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
 652     virtual void Init();
 653
 654     wxMacCoreGraphicsColour m_cgColor;
 655
 656     bool m_isShading;
 657     CGFunctionRef m_gradientFunction;
 658     CGShadingRef m_shading;
 659     CGFloat *m_gradientComponents;
 660 };
 661
 662 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
 663 {
 664     Init();
 665 }
 666
 667 void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 668         const wxColour&c1, const wxColour&c2 )
 669 {
 670     m_gradientFunction = CreateGradientFunction( c1, c2 );
 671     m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) x1, (CGFloat) y1),
 672                                         CGPointMake((CGFloat) x2,(CGFloat) y2), m_gradientFunction, true, true ) ;
 673     m_isShading = true ;
 674 }
 675
 676 void wxMacCoreGraphicsBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 677     const wxColour &oColor, const wxColour &cColor )
 678 {
 679     m_gradientFunction = CreateGradientFunction( oColor, cColor );
 680     m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) xo,(CGFloat) yo), 0,
 681                                         CGPointMake((CGFloat) xc,(CGFloat) yc), (CGFloat) radius, m_gradientFunction, true, true ) ;
 682     m_isShading = true ;
 683 }
 684
 685 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer ),
 686     m_cgColor( brush )
 687 {
 688     Init();
 689
 690 }
 691
 692 wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
 693 {
 694     if ( m_shading )
 695         CGShadingRelease(m_shading);
 696
 697     if( m_gradientFunction )
 698         CGFunctionRelease(m_gradientFunction);
 699
 700     delete[] m_gradientComponents;
 701 }
 702
 703 void wxMacCoreGraphicsBrushData::Init()
 704 {
 705     m_gradientFunction = NULL;
 706     m_shading = NULL;
 707     m_gradientComponents = NULL;
 708     m_isShading = false;
 709 }
 710
 711 void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
 712 {
 713     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 714
 715     if ( m_isShading )
 716     {
 717         // nothing to set as shades are processed by clipping using the path and filling
 718     }
 719     else
 720     {
 721         m_cgColor.Apply( cg );
 722     }
 723 }
 724
 725 void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
 726 {
 727     CGFloat* colors = (CGFloat*) info ;
 728     CGFloat f = *in;
 729     for( int i = 0 ; i < 4 ; ++i )
 730     {
 731         out[i] = colors[i] + ( colors[4+i] - colors[i] ) * f;
 732     }
 733 }
 734
 735 CGFunctionRef wxMacCoreGraphicsBrushData::CreateGradientFunction( const wxColour& c1, const wxColour& c2 )
 736 {
 737     static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL };
 738     static const CGFloat input_value_range [2] = { 0, 1 };
 739     static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 };
 740     m_gradientComponents = new CGFloat[8] ;
 741     m_gradientComponents[0] = (CGFloat) (c1.Red() / 255.0);
 742     m_gradientComponents[1] = (CGFloat) (c1.Green() / 255.0);
 743     m_gradientComponents[2] = (CGFloat) (c1.Blue() / 255.0);
 744     m_gradientComponents[3] = (CGFloat) (c1.Alpha() / 255.0);
 745     m_gradientComponents[4] = (CGFloat) (c2.Red() / 255.0);
 746     m_gradientComponents[5] = (CGFloat) (c2.Green() / 255.0);
 747     m_gradientComponents[6] = (CGFloat) (c2.Blue() / 255.0);
 748     m_gradientComponents[7] = (CGFloat) (c2.Alpha() / 255.0);
 749
 750     return CGFunctionCreate ( m_gradientComponents,  1,
 751                             input_value_range,
 752                             4,
 753                             output_value_ranges,
 754                             &callbacks);
 755 }
 756
 757 //
 758 // Font
 759 //
 760
 761 class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
 762 {
 763 public:
 764     wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
 765     ~wxMacCoreGraphicsFontData();
 766
 767 #if wxMAC_USE_ATSU_TEXT
 768     virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
 769 #endif
 770 #if wxMAC_USE_CORE_TEXT
 771     CTFontRef GetCTFont() const { return m_ctFont ; }
 772 #endif
 773     wxColour GetColour() const { return m_colour ; }
 774
 775     bool GetUnderlined() const { return m_underlined ; }
 776 private :
 777     wxColour m_colour;
 778     bool m_underlined;
 779 #if wxMAC_USE_ATSU_TEXT
 780     ATSUStyle m_macATSUIStyle;
 781 #endif
 782 #if wxMAC_USE_CORE_TEXT
 783     wxCFRef< CTFontRef > m_ctFont;
 784 #endif
 785 };
 786
 787 wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
 788 {
 789     m_colour = col;
 790     m_underlined = font.GetUnderlined();
 791
 792 #if wxMAC_USE_CORE_TEXT
 793     m_ctFont.reset( wxMacCreateCTFont( font ) );
 794 #endif
 795 #if wxMAC_USE_ATSU_TEXT
 796     OSStatus status = noErr;
 797     m_macATSUIStyle = NULL;
 798
 799     status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
 800
 801     wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
 802
 803     // we need the scale here ...
 804
 805     Fixed atsuSize = IntToFixed( int( 1 * font.MacGetFontSize()) );
 806     RGBColor atsuColor ;
 807     col.GetRGBColor( &atsuColor );
 808     ATSUAttributeTag atsuTags[] =
 809     {
 810             kATSUSizeTag ,
 811             kATSUColorTag ,
 812     };
 813     ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 814     {
 815             sizeof( Fixed ) ,
 816             sizeof( RGBColor ) ,
 817     };
 818     ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 819     {
 820             &atsuSize ,
 821             &atsuColor ,
 822     };
 823
 824     status = ::ATSUSetAttributes(
 825         m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
 826         atsuTags, atsuSizes, atsuValues);
 827
 828     wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
 829 #endif
 830 #if wxMAC_USE_CG_TEXT
 831 #endif
 832 }
 833
 834 wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
 835 {
 836 #if wxMAC_USE_CORE_TEXT
 837 #endif
 838 #if wxMAC_USE_ATSU_TEXT
 839     if ( m_macATSUIStyle )
 840     {
 841         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 842         m_macATSUIStyle = NULL;
 843     }
 844 #endif
 845 #if wxMAC_USE_CG_TEXT
 846 #endif
 847 }
 848
 849 class wxMacCoreGraphicsBitmapData : public wxGraphicsObjectRefData
 850 {
 851 public:
 852     wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome );
 853     ~wxMacCoreGraphicsBitmapData();
 854
 855     virtual CGImageRef GetBitmap() { return m_bitmap; }
 856     bool IsMonochrome() { return m_monochrome; }
 857 private :
 858     CGImageRef m_bitmap;
 859     bool m_monochrome;
 860 };
 861
 862 wxMacCoreGraphicsBitmapData::wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome ) : wxGraphicsObjectRefData( renderer ),
 863     m_bitmap(bitmap), m_monochrome(monochrome)
 864 {
 865 }
 866
 867 wxMacCoreGraphicsBitmapData::~wxMacCoreGraphicsBitmapData()
 868 {
 869     CGImageRelease( m_bitmap );
 870 }
 871
 872 //
 873 // Graphics Matrix
 874 //
 875
 876 //-----------------------------------------------------------------------------
 877 // wxMacCoreGraphicsMatrix declaration
 878 //-----------------------------------------------------------------------------
 879
 880 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
 881 {
 882 public :
 883     wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
 884
 885     virtual ~wxMacCoreGraphicsMatrixData() ;
 886
 887     virtual wxGraphicsObjectRefData *Clone() const ;
 888
 889     // concatenates the matrix
 890     virtual void Concat( const wxGraphicsMatrixData *t );
 891
 892     // sets the matrix to the respective values
 893     virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
 894         wxDouble tx=0.0, wxDouble ty=0.0);
 895
 896     // gets the component valuess of the matrix
 897     virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL,  wxDouble* c=NULL,
 898                      wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
 899
 900     // makes this the inverse matrix
 901     virtual void Invert();
 902
 903     // returns true if the elements of the transformation matrix are equal ?
 904     virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
 905
 906     // return true if this is the identity matrix
 907     virtual bool IsIdentity() const;
 908
 909     //
 910     // transformation
 911     //
 912
 913     // add the translation to this matrix
 914     virtual void Translate( wxDouble dx , wxDouble dy );
 915
 916     // add the scale to this matrix
 917     virtual void Scale( wxDouble xScale , wxDouble yScale );
 918
 919     // add the rotation to this matrix (radians)
 920     virtual void Rotate( wxDouble angle );
 921
 922     //
 923     // apply the transforms
 924     //
 925
 926     // applies that matrix to the point
 927     virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
 928
 929     // applies the matrix except for translations
 930     virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
 931
 932     // returns the native representation
 933     virtual void * GetNativeMatrix() const;
 934
 935 private :
 936     CGAffineTransform m_matrix;
 937 } ;
 938
 939 //-----------------------------------------------------------------------------
 940 // wxMacCoreGraphicsMatrix implementation
 941 //-----------------------------------------------------------------------------
 942
 943 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
 944 {
 945 }
 946
 947 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
 948 {
 949 }
 950
 951 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
 952 {
 953     wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
 954     m->m_matrix = m_matrix ;
 955     return m;
 956 }
 957
 958 // concatenates the matrix
 959 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
 960 {
 961     m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
 962 }
 963
 964 // sets the matrix to the respective values
 965 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
 966     wxDouble tx, wxDouble ty)
 967 {
 968     m_matrix = CGAffineTransformMake((CGFloat) a,(CGFloat) b,(CGFloat) c,(CGFloat) d,(CGFloat) tx,(CGFloat) ty);
 969 }
 970
 971 // gets the component valuess of the matrix
 972 void wxMacCoreGraphicsMatrixData::Get(wxDouble* a, wxDouble* b,  wxDouble* c,
 973                                       wxDouble* d, wxDouble* tx, wxDouble* ty) const
 974 {
 975     if (a)  *a = m_matrix.a;
 976     if (b)  *b = m_matrix.b;
 977     if (c)  *c = m_matrix.c;
 978     if (d)  *d = m_matrix.d;
 979     if (tx) *tx= m_matrix.tx;
 980     if (ty) *ty= m_matrix.ty;
 981 }
 982
 983 // makes this the inverse matrix
 984 void wxMacCoreGraphicsMatrixData::Invert()
 985 {
 986     m_matrix = CGAffineTransformInvert( m_matrix );
 987 }
 988
 989 // returns true if the elements of the transformation matrix are equal ?
 990 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
 991 {
 992     return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
 993 }
 994
 995 // return true if this is the identity matrix
 996 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
 997 {
 998     return ( m_matrix.a == 1 && m_matrix.d == 1 &&
 999         m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
1000 }
1001
1002 //
1003 // transformation
1004 //
1005
1006 // add the translation to this matrix
1007 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
1008 {
1009     m_matrix = CGAffineTransformTranslate( m_matrix, (CGFloat) dx, (CGFloat) dy);
1010 }
1011
1012 // add the scale to this matrix
1013 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1014 {
1015     m_matrix = CGAffineTransformScale( m_matrix, (CGFloat) xScale, (CGFloat) yScale);
1016 }
1017
1018 // add the rotation to this matrix (radians)
1019 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
1020 {
1021     m_matrix = CGAffineTransformRotate( m_matrix, (CGFloat) angle);
1022 }
1023
1024 //
1025 // apply the transforms
1026 //
1027
1028 // applies that matrix to the point
1029 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1030 {
1031     CGPoint pt = CGPointApplyAffineTransform( CGPointMake((CGFloat) *x,(CGFloat) *y), m_matrix);
1032
1033     *x = pt.x;
1034     *y = pt.y;
1035 }
1036
1037 // applies the matrix except for translations
1038 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1039 {
1040     CGSize sz = CGSizeApplyAffineTransform( CGSizeMake((CGFloat) *dx,(CGFloat) *dy) , m_matrix );
1041     *dx = sz.width;
1042     *dy = sz.height;
1043 }
1044
1045 // returns the native representation
1046 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
1047 {
1048     return (void*) &m_matrix;
1049 }
1050
1051 //
1052 // Graphics Path
1053 //
1054
1055 //-----------------------------------------------------------------------------
1056 // wxMacCoreGraphicsPath declaration
1057 //-----------------------------------------------------------------------------
1058
1059 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
1060 {
1061 public :
1062     wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
1063
1064     ~wxMacCoreGraphicsPathData();
1065
1066     virtual wxGraphicsObjectRefData *Clone() const;
1067
1068     // begins a new subpath at (x,y)
1069     virtual void MoveToPoint( wxDouble x, wxDouble y );
1070
1071     // adds a straight line from the current point to (x,y)
1072     virtual void AddLineToPoint( wxDouble x, wxDouble y );
1073
1074     // adds a cubic Bezier curve from the current point, using two control points and an end point
1075     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
1076
1077     // closes the current sub-path
1078     virtual void CloseSubpath();
1079
1080     // gets the last point of the current path, (0,0) if not yet set
1081     virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
1082
1083     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1084     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
1085
1086     //
1087     // These are convenience functions which - if not available natively will be assembled
1088     // using the primitives from above
1089     //
1090
1091     // adds a quadratic Bezier curve from the current point, using a control point and an end point
1092     virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
1093
1094     // appends a rectangle as a new closed subpath
1095     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1096
1097     // appends an ellipsis as a new closed subpath fitting the passed rectangle
1098     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1099
1100     // 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)
1101     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1102
1103     // adds another path
1104     virtual void AddPath( const wxGraphicsPathData* path );
1105
1106     // returns the native path
1107     virtual void * GetNativePath() const { return m_path; }
1108
1109     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1110     virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1111
1112     // transforms each point of this path by the matrix
1113     virtual void Transform( const wxGraphicsMatrixData* matrix );
1114
1115     // gets the bounding box enclosing all points (possibly including control points)
1116     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
1117
1118     virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxODDEVEN_RULE) const;
1119 private :
1120     CGMutablePathRef m_path;
1121 };
1122
1123 //-----------------------------------------------------------------------------
1124 // wxMacCoreGraphicsPath implementation
1125 //-----------------------------------------------------------------------------
1126
1127 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1128 {
1129     if ( path )
1130         m_path = path;
1131     else
1132         m_path = CGPathCreateMutable();
1133 }
1134
1135 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1136 {
1137     CGPathRelease( m_path );
1138 }
1139
1140 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1141 {
1142     wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1143     return clone ;
1144 }
1145
1146
1147 // opens (starts) a new subpath
1148 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1149 {
1150     CGPathMoveToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1151 }
1152
1153 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1154 {
1155     CGPathAddLineToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1156 }
1157
1158 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1159 {
1160     CGPathAddCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) cx2, (CGFloat) cy2, (CGFloat) x , (CGFloat) y );
1161 }
1162
1163 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1164 {
1165     CGPathAddQuadCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) x , (CGFloat) y );
1166 }
1167
1168 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1169 {
1170     CGRect cgRect = { { (CGFloat) x , (CGFloat) y } , { (CGFloat) w , (CGFloat) h } };
1171     CGPathAddRect( m_path , NULL , cgRect );
1172 }
1173
1174 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1175 {
1176     CGPathAddArc( m_path , NULL , (CGFloat) x , (CGFloat) y , (CGFloat) r , (CGFloat) 0.0 , (CGFloat) (2 * M_PI) , true );
1177 }
1178
1179 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1180 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1181 {
1182     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1183     CGPathAddArc( m_path, NULL , (CGFloat) x, (CGFloat) y, (CGFloat) r, (CGFloat) startAngle, (CGFloat) endAngle, !clockwise);
1184 }
1185
1186 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1187 {
1188     CGPathAddArcToPoint( m_path, NULL , (CGFloat) x1, (CGFloat) y1, (CGFloat) x2, (CGFloat) y2, (CGFloat) r);
1189 }
1190
1191 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1192 {
1193     CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1194 }
1195
1196 // closes the current subpath
1197 void wxMacCoreGraphicsPathData::CloseSubpath()
1198 {
1199     CGPathCloseSubpath( m_path );
1200 }
1201
1202 // gets the last point of the current path, (0,0) if not yet set
1203 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1204 {
1205     CGPoint p = CGPathGetCurrentPoint( m_path );
1206     *x = p.x;
1207     *y = p.y;
1208 }
1209
1210 // transforms each point of this path by the matrix
1211 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1212 {
1213     CGMutablePathRef p = CGPathCreateMutable() ;
1214     CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1215     CGPathRelease( m_path );
1216     m_path = p;
1217 }
1218
1219 // gets the bounding box enclosing all points (possibly including control points)
1220 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1221 {
1222     CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1223     *x = bounds.origin.x;
1224     *y = bounds.origin.y;
1225     *w = bounds.size.width;
1226     *h = bounds.size.height;
1227 }
1228
1229 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, int fillStyle) const
1230 {
1231     return CGPathContainsPoint( m_path, NULL, CGPointMake((CGFloat) x,(CGFloat) y), fillStyle == wxODDEVEN_RULE );
1232 }
1233
1234 //
1235 // Graphics Context
1236 //
1237
1238 //-----------------------------------------------------------------------------
1239 // wxMacCoreGraphicsContext declaration
1240 //-----------------------------------------------------------------------------
1241
1242 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1243 {
1244 public:
1245     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1246
1247     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1248
1249     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1250
1251     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1252
1253     wxMacCoreGraphicsContext();
1254
1255     ~wxMacCoreGraphicsContext();
1256
1257     void Init();
1258
1259     // returns the size of the graphics context in device coordinates
1260     virtual void GetSize( wxDouble* width, wxDouble* height);
1261
1262     virtual void StartPage( wxDouble width, wxDouble height );
1263
1264     virtual void EndPage();
1265
1266     virtual void Flush();
1267
1268     // push the current state of the context, ie the transformation matrix on a stack
1269     virtual void PushState();
1270
1271     // pops a stored state from the stack
1272     virtual void PopState();
1273
1274     // clips drawings to the region
1275     virtual void Clip( const wxRegion &region );
1276
1277     // clips drawings to the rect
1278     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1279
1280     // resets the clipping to original extent
1281     virtual void ResetClip();
1282
1283     virtual void * GetNativeContext();
1284
1285     bool SetLogicalFunction( int function );
1286     //
1287     // transformation
1288     //
1289
1290     // translate
1291     virtual void Translate( wxDouble dx , wxDouble dy );
1292
1293     // scale
1294     virtual void Scale( wxDouble xScale , wxDouble yScale );
1295
1296     // rotate (radians)
1297     virtual void Rotate( wxDouble angle );
1298
1299     // concatenates this transform with the current transform of this context
1300     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1301
1302     // sets the transform of this context
1303     virtual void SetTransform( const wxGraphicsMatrix& matrix );
1304
1305     // gets the matrix of this context
1306     virtual wxGraphicsMatrix GetTransform() const;
1307     //
1308     // setting the paint
1309     //
1310
1311     // strokes along a path with the current pen
1312     virtual void StrokePath( const wxGraphicsPath &path );
1313
1314     // fills a path with the current brush
1315     virtual void FillPath( const wxGraphicsPath &path, int fillStyle = wxODDEVEN_RULE );
1316
1317     // draws a path by first filling and then stroking
1318     virtual void DrawPath( const wxGraphicsPath &path, int fillStyle = wxODDEVEN_RULE );
1319
1320     virtual bool ShouldOffset() const
1321     {
1322         int penwidth = 0 ;
1323         if ( !m_pen.IsNull() )
1324         {
1325             penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1326             if ( penwidth == 0 )
1327                 penwidth = 1;
1328         }
1329         return ( penwidth % 2 ) == 1;
1330     }
1331     //
1332     // text
1333     //
1334
1335     virtual void DrawText( const wxString &str, wxDouble x, wxDouble y );
1336
1337     virtual void DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1338
1339     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1340         wxDouble *descent, wxDouble *externalLeading ) const;
1341
1342     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1343
1344     //
1345     // image support
1346     //
1347
1348     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1349
1350     virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1351
1352     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1353
1354     void SetNativeContext( CGContextRef cg );
1355
1356     DECLARE_NO_COPY_CLASS(wxMacCoreGraphicsContext)
1357     DECLARE_DYNAMIC_CLASS(wxMacCoreGraphicsContext)
1358
1359 private:
1360     void EnsureIsValid();
1361
1362     CGContextRef m_cgContext;
1363     WindowRef m_windowRef;
1364     bool m_releaseContext;
1365     CGAffineTransform m_windowTransform;
1366     wxDouble m_width;
1367     wxDouble m_height;
1368
1369     wxCFRef<HIShapeRef> m_clipRgn;
1370 };
1371
1372 //-----------------------------------------------------------------------------
1373 // device context implementation
1374 //
1375 // more and more of the dc functionality should be implemented by calling
1376 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1377 // also coordinate conversions should be moved to native matrix ops
1378 //-----------------------------------------------------------------------------
1379
1380 // we always stock two context states, one at entry, to be able to preserve the
1381 // state we were called with, the other one after changing to HI Graphics orientation
1382 // (this one is used for getting back clippings etc)
1383
1384 //-----------------------------------------------------------------------------
1385 // wxMacCoreGraphicsContext implementation
1386 //-----------------------------------------------------------------------------
1387
1388 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1389
1390 class wxQuartzOffsetHelper
1391 {
1392 public :
1393     wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1394     {
1395         m_cg = cg;
1396         m_offset = offset;
1397         if ( m_offset )
1398             CGContextTranslateCTM( m_cg, (CGFloat) 0.5, (CGFloat) 0.5 );
1399     }
1400     ~wxQuartzOffsetHelper( )
1401     {
1402         if ( m_offset )
1403             CGContextTranslateCTM( m_cg, (CGFloat) -0.5, (CGFloat) -0.5 );
1404     }
1405 public :
1406     CGContextRef m_cg;
1407     bool m_offset;
1408 } ;
1409
1410 void wxMacCoreGraphicsContext::Init()
1411 {
1412     m_cgContext = NULL;
1413     m_releaseContext = false;
1414     m_windowRef = NULL;
1415     m_width = 0;
1416     m_height = 0;
1417 }
1418
1419 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer)
1420 {
1421     Init();
1422     SetNativeContext(cgcontext);
1423     m_width = width;
1424     m_height = height;
1425 }
1426
1427 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1428 {
1429     Init();
1430     m_windowRef = window;
1431 }
1432
1433 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1434 {
1435     Init();
1436
1437     int originX , originY;
1438     originX = originY = 0;
1439
1440     Rect bounds = { 0,0,0,0 };
1441 #if defined( __LP64__ ) || defined(__WXCOCOA__)
1442 #else
1443     m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1444     window->MacWindowToRootWindow( &originX , &originY );
1445     GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1446 #endif
1447     m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1448     m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1449     m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1450 }
1451
1452 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1453 {
1454     Init();
1455 }
1456
1457 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1458 {
1459     Init();
1460     wxLogDebug(wxT("Illegal Constructor called"));
1461 }
1462
1463 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1464 {
1465     SetNativeContext(NULL);
1466 }
1467
1468 void wxMacCoreGraphicsContext::GetSize( wxDouble* width, wxDouble* height)
1469 {
1470     *width = m_width;
1471     *height = m_height;
1472 }
1473
1474
1475 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1476 {
1477     CGRect r;
1478     if ( width != 0 && height != 0)
1479         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) width  , (CGFloat) height );
1480     else
1481         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) m_width  , (CGFloat) m_height );
1482
1483     CGContextBeginPage(m_cgContext,  &r );
1484 //    CGContextTranslateCTM( m_cgContext , 0 ,  height == 0 ? m_height : height );
1485 //    CGContextScaleCTM( m_cgContext , 1 , -1 );
1486 }
1487
1488 void wxMacCoreGraphicsContext::EndPage()
1489 {
1490     CGContextEndPage(m_cgContext);
1491 }
1492
1493 void wxMacCoreGraphicsContext::Flush()
1494 {
1495     CGContextFlush(m_cgContext);
1496 }
1497
1498 void wxMacCoreGraphicsContext::EnsureIsValid()
1499 {
1500     if ( !m_cgContext )
1501     {
1502         OSStatus status =
1503 #if ! ( defined( __LP64__ ) || defined(__WXCOCOA__) )
1504             QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1505 #else
1506             paramErr;
1507 #endif
1508         if ( status != noErr )
1509         {
1510             wxFAIL_MSG("Cannot nest wxDCs on the same window");
1511         }
1512
1513         CGContextConcatCTM( m_cgContext, m_windowTransform );
1514         CGContextSaveGState( m_cgContext );
1515         m_releaseContext = true;
1516         if ( m_clipRgn.get() )
1517         {
1518             // the clip region is in device coordinates, so we convert this again to user coordinates
1519             wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1520             CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero,m_windowTransform);
1521             HIShapeOffset( hishape, -transformedOrigin.x, -transformedOrigin.y );
1522             // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1523             if ( HIShapeIsEmpty(hishape))
1524             {
1525                 CGRect empty = CGRectMake( 0,0,0,0 );
1526                 CGContextClipToRect( m_cgContext, empty );
1527             }
1528             else
1529             {
1530                 HIShapeReplacePathInCGContext( hishape, m_cgContext );
1531                 CGContextClip( m_cgContext );
1532             }
1533         }
1534         CGContextSaveGState( m_cgContext );
1535     }
1536 }
1537
1538 // TODO test whether the private CGContextSetCompositeOperation works under 10.3 (using NSCompositingModes)
1539
1540 bool wxMacCoreGraphicsContext::SetLogicalFunction( int function )
1541 {
1542     if (m_logicalFunction == function)
1543         return true;
1544
1545     EnsureIsValid();
1546
1547     bool retval = false;
1548     bool shouldAntiAlias = true;
1549     CGBlendMode mode = kCGBlendModeNormal;
1550
1551 #if defined(__WXMAC__) && ( MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 )
1552     if ( UMAGetSystemVersion() >= 0x1050 )
1553     {
1554         retval = true;
1555         switch ( function )
1556         {
1557             // TODO find best corresponding porter duff modes
1558             case wxCOPY :
1559                 mode = kCGBlendModeCopy;
1560                 break;
1561             case wxCLEAR :
1562                 mode = kCGBlendModeClear;
1563                 break;
1564             case wxXOR :
1565                 mode = kCGBlendModeXOR;
1566                 shouldAntiAlias = false;
1567                 break;
1568             default :
1569                 retval = false;
1570                 break;
1571         }
1572     }
1573     else
1574 #endif
1575     {
1576         if ( function == wxCOPY )
1577         {
1578             retval = true;
1579         }
1580         else if ( function == wxINVERT || function == wxXOR )
1581         {
1582             // change color to white
1583             mode = kCGBlendModeExclusion;
1584             shouldAntiAlias = false;
1585             retval = true;
1586         }
1587     }
1588
1589     if (retval)
1590     {
1591         m_logicalFunction = function;
1592         CGContextSetBlendMode( m_cgContext, mode );
1593         CGContextSetShouldAntialias(m_cgContext, shouldAntiAlias);
1594     }
1595     return retval ;
1596 }
1597
1598 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1599 {
1600 #ifdef __WXMAC__
1601     if( m_cgContext )
1602     {
1603         wxCFRef<HIShapeRef> shape = wxCFRefFromGet(region.GetWXHRGN());
1604         // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1605         if ( HIShapeIsEmpty(shape))
1606         {
1607             CGRect empty = CGRectMake( 0,0,0,0 );
1608             CGContextClipToRect( m_cgContext, empty );
1609         }
1610         else
1611         {
1612             HIShapeReplacePathInCGContext( shape, m_cgContext );
1613             CGContextClip( m_cgContext );
1614         }
1615     }
1616     else
1617     {
1618         // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1619         // to regions we try at least to have correct translations
1620         HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1621
1622         CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1623         HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1624         m_clipRgn.reset(mutableShape);
1625     }
1626 #endif
1627 }
1628
1629 // clips drawings to the rect
1630 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1631 {
1632     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1633     if ( m_cgContext )
1634     {
1635         CGContextClipToRect( m_cgContext, r );
1636     }
1637     else
1638     {
1639         // the clipping itself must be stored as device coordinates, otherwise
1640         // we cannot apply it back correctly
1641         r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
1642         m_clipRgn.reset(HIShapeCreateWithRect(&r));
1643     }
1644 }
1645
1646     // resets the clipping to original extent
1647 void wxMacCoreGraphicsContext::ResetClip()
1648 {
1649     if ( m_cgContext )
1650     {
1651         // there is no way for clearing the clip, we can only revert to the stored
1652         // state, but then we have to make sure everything else is NOT restored
1653         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1654         CGContextRestoreGState( m_cgContext );
1655         CGContextSaveGState( m_cgContext );
1656         CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
1657         transformNew = CGAffineTransformInvert( transformNew ) ;
1658         CGContextConcatCTM( m_cgContext, transformNew);
1659         CGContextConcatCTM( m_cgContext, transform);
1660     }
1661     else
1662     {
1663         m_clipRgn.reset();
1664     }
1665 }
1666
1667 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1668 {
1669     if ( m_pen.IsNull() )
1670         return ;
1671
1672     EnsureIsValid();
1673
1674     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1675
1676     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1677     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1678     CGContextStrokePath( m_cgContext );
1679 }
1680
1681 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , int fillStyle )
1682 {
1683     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1684     {
1685         // when using shading, we cannot draw pen and brush at the same time
1686         // revert to the base implementation of first filling and then stroking
1687         wxGraphicsContext::DrawPath( path, fillStyle );
1688         return;
1689     }
1690
1691     CGPathDrawingMode mode = kCGPathFill ;
1692     if ( m_brush.IsNull() )
1693     {
1694         if ( m_pen.IsNull() )
1695             return;
1696         else
1697             mode = kCGPathStroke;
1698     }
1699     else
1700     {
1701         if ( m_pen.IsNull() )
1702         {
1703             if ( fillStyle == wxODDEVEN_RULE )
1704                 mode = kCGPathEOFill;
1705             else
1706                 mode = kCGPathFill;
1707         }
1708         else
1709         {
1710             if ( fillStyle == wxODDEVEN_RULE )
1711                 mode = kCGPathEOFillStroke;
1712             else
1713                 mode = kCGPathFillStroke;
1714         }
1715     }
1716
1717     EnsureIsValid();
1718
1719     if ( !m_brush.IsNull() )
1720         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1721     if ( !m_pen.IsNull() )
1722         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1723
1724     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1725
1726     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1727     CGContextDrawPath( m_cgContext , mode );
1728 }
1729
1730 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , int fillStyle )
1731 {
1732     if ( m_brush.IsNull() )
1733         return;
1734
1735     EnsureIsValid();
1736
1737     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1738     {
1739         CGContextSaveGState( m_cgContext );
1740         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1741         CGContextClip( m_cgContext );
1742         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1743         CGContextRestoreGState( m_cgContext);
1744     }
1745     else
1746     {
1747         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1748         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1749         if ( fillStyle == wxODDEVEN_RULE )
1750             CGContextEOFillPath( m_cgContext );
1751         else
1752             CGContextFillPath( m_cgContext );
1753     }
1754 }
1755
1756 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
1757 {
1758     // we allow either setting or clearing but not replacing
1759     wxASSERT( m_cgContext == NULL || cg == NULL );
1760
1761     if ( m_cgContext )
1762     {
1763         // TODO : when is this necessary - should we add a Flush() method ? CGContextSynchronize( m_cgContext );
1764         CGContextRestoreGState( m_cgContext );
1765         CGContextRestoreGState( m_cgContext );
1766         if ( m_releaseContext )
1767         {
1768 #if ! ( defined( __LP64__ ) || defined(__WXCOCOA__) )
1769             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
1770 #endif
1771         }
1772         else
1773             CGContextRelease(m_cgContext);
1774     }
1775
1776
1777     m_cgContext = cg;
1778
1779     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
1780     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
1781     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
1782     // for this one operation.
1783
1784     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
1785     // can be removed.
1786     if (m_cgContext)
1787     {
1788         CGContextRetain(m_cgContext);
1789         CGContextSaveGState( m_cgContext );
1790         CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
1791         CGContextSaveGState( m_cgContext );
1792         m_releaseContext = false;
1793     }
1794 }
1795
1796 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
1797 {
1798     if ( m_cgContext )
1799         CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
1800     else
1801         m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
1802 }
1803
1804 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
1805 {
1806     if ( m_cgContext )
1807         CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
1808     else
1809         m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
1810 }
1811
1812 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
1813 {
1814     if ( m_cgContext )
1815         CGContextRotateCTM( m_cgContext , (CGFloat) angle );
1816     else
1817         m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
1818 }
1819
1820 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1821 {
1822     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
1823     DrawBitmap(bitmap, x, y, w, h);
1824 }
1825
1826 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1827 {
1828     EnsureIsValid();
1829 #ifdef __WXMAC__
1830     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
1831     CGImageRef image = refdata->GetBitmap();
1832     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1833     if ( refdata->IsMonochrome() == 1 )
1834     {
1835         // is is a mask, the '1' in the mask tell where to draw the current brush
1836         if (  !m_brush.IsNull() )
1837         {
1838             if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1839             {
1840                 // TODO clip to mask
1841             /*
1842                 CGContextSaveGState( m_cgContext );
1843                 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1844                 CGContextClip( m_cgContext );
1845                 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1846                 CGContextRestoreGState( m_cgContext);
1847             */
1848             }
1849             else
1850             {
1851                 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1852                 wxMacDrawCGImage( m_cgContext , &r , image );
1853             }
1854         }
1855     }
1856     else
1857     {
1858         wxMacDrawCGImage( m_cgContext , &r , image );
1859     }
1860 #endif
1861 }
1862
1863 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1864 {
1865     EnsureIsValid();
1866
1867     CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
1868     CGContextSaveGState( m_cgContext );
1869     CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
1870     CGContextScaleCTM( m_cgContext, 1, -1 );
1871 #ifdef __WXMAC__
1872     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
1873         NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) );
1874 #endif
1875     CGContextRestoreGState( m_cgContext );
1876 }
1877
1878 void wxMacCoreGraphicsContext::PushState()
1879 {
1880     EnsureIsValid();
1881
1882     CGContextSaveGState( m_cgContext );
1883 }
1884
1885 void wxMacCoreGraphicsContext::PopState()
1886 {
1887     EnsureIsValid();
1888
1889     CGContextRestoreGState( m_cgContext );
1890 }
1891
1892 void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
1893 {
1894     if ( m_font.IsNull() )
1895         return;
1896
1897     EnsureIsValid();
1898 #if wxMAC_USE_CORE_TEXT
1899     if ( UMAGetSystemVersion() >= 0x1050 )
1900     {
1901         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
1902         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
1903         CTFontRef font = fref->GetCTFont();
1904         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
1905         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
1906         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
1907          CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
1908         CFTypeRef values[] = { font, col, underlined };
1909         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
1910                                                         WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
1911         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
1912         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
1913
1914         y += CTFontGetAscent(font);
1915
1916         CGContextSaveGState(m_cgContext);
1917         CGContextTranslateCTM(m_cgContext, x, y);
1918         CGContextScaleCTM(m_cgContext, 1, -1);
1919         CGContextSetTextPosition(m_cgContext, 0, 0);
1920         CTLineDraw( line, m_cgContext );
1921         CGContextRestoreGState(m_cgContext);
1922         CFRelease( col );
1923         return;
1924     }
1925 #endif
1926 #if wxMAC_USE_ATSU_TEXT
1927     {
1928         DrawText(str, x, y, 0.0);
1929         return;
1930     }
1931 #endif
1932 #if wxMAC_USE_CG_TEXT
1933     // TODO core graphics text implementation here
1934 #endif
1935 }
1936
1937 void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle )
1938 {
1939     if ( m_font.IsNull() )
1940         return;
1941
1942     EnsureIsValid();
1943 #if wxMAC_USE_CORE_TEXT
1944     if ( UMAGetSystemVersion() >= 0x1050 )
1945     {
1946         // default implementation takes care of rotation and calls non rotated DrawText afterwards
1947         wxGraphicsContext::DrawText( str, x, y, angle );
1948         return;
1949     }
1950 #endif
1951 #if wxMAC_USE_ATSU_TEXT
1952     {
1953         OSStatus status = noErr;
1954         ATSUTextLayout atsuLayout;
1955         wxMacUniCharBuffer unibuf( str );
1956         UniCharCount chars = unibuf.GetChars();
1957
1958         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
1959         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
1960                                                    &chars , &style , &atsuLayout );
1961
1962         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
1963
1964         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
1965         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
1966
1967         int iAngle = int( angle * RAD2DEG );
1968         if ( abs(iAngle) > 0 )
1969         {
1970             Fixed atsuAngle = IntToFixed( iAngle );
1971             ATSUAttributeTag atsuTags[] =
1972             {
1973                 kATSULineRotationTag ,
1974             };
1975             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1976             {
1977                 sizeof( Fixed ) ,
1978             };
1979             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1980             {
1981                 &atsuAngle ,
1982             };
1983             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1984                                              atsuTags, atsuSizes, atsuValues );
1985         }
1986
1987         {
1988             ATSUAttributeTag atsuTags[] =
1989             {
1990                 kATSUCGContextTag ,
1991             };
1992             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1993             {
1994                 sizeof( CGContextRef ) ,
1995             };
1996             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1997             {
1998                 &m_cgContext ,
1999             };
2000             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
2001                                              atsuTags, atsuSizes, atsuValues );
2002         }
2003
2004         ATSUTextMeasurement textBefore, textAfter;
2005         ATSUTextMeasurement ascent, descent;
2006
2007         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2008                                             &textBefore , &textAfter, &ascent , &descent );
2009
2010         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2011
2012         Rect rect;
2013         x += (int)(sin(angle) * FixedToInt(ascent));
2014         y += (int)(cos(angle) * FixedToInt(ascent));
2015
2016         status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2017                                         IntToFixed(x) , IntToFixed(y) , &rect );
2018         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2019
2020         CGContextSaveGState(m_cgContext);
2021         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2022         CGContextScaleCTM(m_cgContext, 1, -1);
2023         status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2024                                 IntToFixed(0) , IntToFixed(0) );
2025
2026         wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2027
2028         CGContextRestoreGState(m_cgContext);
2029
2030         ::ATSUDisposeTextLayout(atsuLayout);
2031
2032         return;
2033     }
2034 #endif
2035 #if wxMAC_USE_CG_TEXT
2036     // default implementation takes care of rotation and calls non rotated DrawText afterwards
2037     wxGraphicsContext::DrawText( str, x, y, angle );
2038 #endif
2039 }
2040
2041 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2042                             wxDouble *descent, wxDouble *externalLeading ) const
2043 {
2044     wxCHECK_RET( !m_font.IsNull(), wxT("wxDC(cg)::DoGetTextExtent - no valid font set") );
2045
2046     if ( width )
2047         *width = 0;
2048     if ( height )
2049         *height = 0;
2050     if ( descent )
2051         *descent = 0;
2052     if ( externalLeading )
2053         *externalLeading = 0;
2054
2055     if (str.empty())
2056         return;
2057
2058 #if wxMAC_USE_CORE_TEXT
2059     if ( UMAGetSystemVersion() >= 0x1050 )
2060     {
2061         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2062         CTFontRef font = fref->GetCTFont();
2063
2064         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2065         CFStringRef keys[] = { kCTFontAttributeName  };
2066         CFTypeRef values[] = { font };
2067         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2068                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2069         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2070         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2071
2072         CGFloat w, a, d, l;
2073
2074         w = CTLineGetTypographicBounds(line, &a, &d, &l) ;
2075
2076         if ( height )
2077             *height = a+d+l;
2078         if ( descent )
2079             *descent = d;
2080         if ( externalLeading )
2081             *externalLeading = l;
2082         if ( width )
2083             *width = w;
2084         return;
2085     }
2086 #endif
2087 #if wxMAC_USE_ATSU_TEXT
2088     {
2089         OSStatus status = noErr;
2090
2091         ATSUTextLayout atsuLayout;
2092         wxMacUniCharBuffer unibuf( str );
2093         UniCharCount chars = unibuf.GetChars();
2094
2095         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2096         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2097                                                    &chars , &style , &atsuLayout );
2098
2099         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2100
2101         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2102         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2103
2104         ATSUTextMeasurement textBefore, textAfter;
2105         ATSUTextMeasurement textAscent, textDescent;
2106
2107         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2108                                             &textBefore , &textAfter, &textAscent , &textDescent );
2109
2110         if ( height )
2111             *height = FixedToInt(textAscent + textDescent);
2112         if ( descent )
2113             *descent = FixedToInt(textDescent);
2114         if ( externalLeading )
2115             *externalLeading = 0;
2116         if ( width )
2117             *width = FixedToInt(textAfter - textBefore);
2118
2119         ::ATSUDisposeTextLayout(atsuLayout);
2120
2121         return;
2122     }
2123 #endif
2124 #if wxMAC_USE_CG_TEXT
2125     // TODO core graphics text implementation here
2126 #endif
2127 }
2128
2129 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2130 {
2131     widths.Empty();
2132     widths.Add(0, text.length());
2133
2134     if (text.empty())
2135         return;
2136
2137 #if wxMAC_USE_CORE_TEXT
2138     {
2139         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2140         CTFontRef font = fref->GetCTFont();
2141
2142         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2143         CFStringRef keys[] = { kCTFontAttributeName  };
2144         CFTypeRef values[] = { font };
2145         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2146                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2147         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2148         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2149
2150         int chars = text.length();
2151         for ( int pos = 0; pos < (int)chars; pos ++ )
2152         {
2153             widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5;
2154         }
2155
2156         return;
2157     }
2158 #endif
2159 #if wxMAC_USE_ATSU_TEXT
2160     {
2161         OSStatus status = noErr;
2162         ATSUTextLayout atsuLayout;
2163         wxMacUniCharBuffer unibuf( text );
2164         UniCharCount chars = unibuf.GetChars();
2165
2166         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2167         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2168                                           &chars , &style , &atsuLayout );
2169
2170         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2171
2172         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2173         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2174
2175 // new implementation from JS, keep old one just in case
2176 #if 0
2177         for ( int pos = 0; pos < (int)chars; pos ++ )
2178         {
2179             unsigned long actualNumberOfBounds = 0;
2180             ATSTrapezoid glyphBounds;
2181
2182             // We get a single bound, since the text should only require one. If it requires more, there is an issue
2183             OSStatus result;
2184             result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2185                                         kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2186             if (result != noErr || actualNumberOfBounds != 1 )
2187                 return;
2188
2189             widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2190             //unsigned char uch = s[i];
2191         }
2192 #else
2193         ATSLayoutRecord *layoutRecords = NULL;
2194         ItemCount glyphCount = 0;
2195
2196         // Get the glyph extents
2197         OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2198                                                                        0,
2199                                                                        kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2200                                                                        (void **)
2201                                                                        &layoutRecords,
2202                                                                        &glyphCount);
2203         wxASSERT(glyphCount == (text.length()+1));
2204
2205         if ( err == noErr && glyphCount == (text.length()+1))
2206         {
2207             for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2208             {
2209                 widths[pos-1] = FixedToInt( layoutRecords[pos].realPos );
2210             }
2211         }
2212
2213         ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2214                                               kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2215                                               (void **) &layoutRecords);
2216 #endif
2217         ::ATSUDisposeTextLayout(atsuLayout);
2218     }
2219 #endif
2220 #if wxMAC_USE_CG_TEXT
2221     // TODO core graphics text implementation here
2222 #endif
2223 }
2224
2225 void * wxMacCoreGraphicsContext::GetNativeContext()
2226 {
2227     return m_cgContext;
2228 }
2229
2230 // concatenates this transform with the current transform of this context
2231 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2232 {
2233     if ( m_cgContext )
2234         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2235     else
2236         m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
2237 }
2238
2239 // sets the transform of this context
2240 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2241 {
2242     if ( m_cgContext )
2243     {
2244         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2245         transform = CGAffineTransformInvert( transform ) ;
2246         CGContextConcatCTM( m_cgContext, transform);
2247         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2248     }
2249     else
2250     {
2251         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2252     }
2253 }
2254
2255 // gets the matrix of this context
2256 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2257 {
2258     wxGraphicsMatrix m = CreateMatrix();
2259     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2260         CGContextGetCTM( m_cgContext ));
2261     return m;
2262 }
2263
2264 //
2265 // Renderer
2266 //
2267
2268 //-----------------------------------------------------------------------------
2269 // wxMacCoreGraphicsRenderer declaration
2270 //-----------------------------------------------------------------------------
2271
2272 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2273 {
2274 public :
2275     wxMacCoreGraphicsRenderer() {}
2276
2277     virtual ~wxMacCoreGraphicsRenderer() {}
2278
2279     // Context
2280
2281     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2282     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2283     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2284
2285     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2286
2287     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2288
2289     virtual wxGraphicsContext * CreateContext( wxWindow* window );
2290
2291     virtual wxGraphicsContext * CreateMeasuringContext();
2292
2293     // Path
2294
2295     virtual wxGraphicsPath CreatePath();
2296
2297     // Matrix
2298
2299     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2300         wxDouble tx=0.0, wxDouble ty=0.0);
2301
2302
2303     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2304
2305     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2306
2307     // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2308     virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2309         const wxColour&c1, const wxColour&c2) ;
2310
2311     // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2312     // with radius r and color cColor
2313     virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2314         const wxColour &oColor, const wxColour &cColor) ;
2315
2316    // sets the font
2317     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2318
2319     // create a native bitmap representation
2320     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2321
2322     // create a native bitmap representation
2323     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
2324 private :
2325     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2326 } ;
2327
2328 //-----------------------------------------------------------------------------
2329 // wxMacCoreGraphicsRenderer implementation
2330 //-----------------------------------------------------------------------------
2331
2332 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2333
2334 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2335
2336 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2337 {
2338     return &gs_MacCoreGraphicsRenderer;
2339 }
2340
2341 #ifdef __WXCOCOA__
2342 extern CGContextRef wxMacGetContextFromCurrentNSContext() ;
2343 #endif
2344
2345 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2346 {
2347     const wxDCImpl* impl = dc.GetImpl();
2348     wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2349     if (win_impl)
2350     {
2351         int w, h;
2352         win_impl->GetSize( &w, &h );
2353         CGContextRef cgctx = 0;
2354 #ifdef __WXMAC__
2355         cgctx =  (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2356 #else
2357         cgctx = wxMacGetContextFromCurrentNSContext() ;
2358 #endif
2359         return new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2360     }
2361     return NULL;
2362 }
2363
2364 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2365 {
2366 #ifdef __WXMAC__
2367     const wxDCImpl* impl = dc.GetImpl();
2368     wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2369     if (mem_impl)
2370     {
2371         int w, h;
2372         mem_impl->GetSize( &w, &h );
2373         return new wxMacCoreGraphicsContext( this,
2374             (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2375     }
2376 #endif
2377     return NULL;
2378 }
2379
2380 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2381 {
2382 #ifdef __WXMAC__
2383     const wxDCImpl* impl = dc.GetImpl();
2384     wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2385     if (print_impl)
2386     {
2387         int w, h;
2388         print_impl->GetSize( &w, &h );
2389         return new wxMacCoreGraphicsContext( this,
2390             (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2391     }
2392 #endif
2393     return NULL;
2394 }
2395
2396 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2397 {
2398     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2399 }
2400
2401
2402 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2403 {
2404     return new wxMacCoreGraphicsContext(this,(WindowRef)window);
2405 }
2406
2407 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
2408 {
2409     return new wxMacCoreGraphicsContext(this, window );
2410 }
2411
2412 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
2413 {
2414     return new wxMacCoreGraphicsContext(this);
2415 }
2416
2417 // Path
2418
2419 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
2420 {
2421     wxGraphicsPath m;
2422     m.SetRefData( new wxMacCoreGraphicsPathData(this));
2423     return m;
2424 }
2425
2426
2427 // Matrix
2428
2429 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
2430     wxDouble tx, wxDouble ty)
2431 {
2432     wxGraphicsMatrix m;
2433     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
2434     data->Set( a,b,c,d,tx,ty ) ;
2435     m.SetRefData(data);
2436     return m;
2437 }
2438
2439 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
2440 {
2441     if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
2442         return wxNullGraphicsPen;
2443     else
2444     {
2445         wxGraphicsPen p;
2446         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
2447         return p;
2448     }
2449 }
2450
2451 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
2452 {
2453     if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
2454         return wxNullGraphicsBrush;
2455     else
2456     {
2457         wxGraphicsBrush p;
2458         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
2459         return p;
2460     }
2461 }
2462
2463 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
2464 {
2465     if ( bmp.Ok() )
2466     {
2467         wxGraphicsBitmap p;
2468 #ifdef __WXMAC__
2469         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
2470 #endif
2471         return p;
2472     }
2473     else
2474         return wxNullGraphicsBitmap;
2475 }
2476
2477 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
2478 {
2479     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2480     CGImageRef img = refdata->GetBitmap();
2481     if ( img )
2482     {
2483         wxGraphicsBitmap p;
2484         CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h ));
2485         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg, refdata->IsMonochrome() ) );
2486         return p;
2487     }
2488     else
2489         return wxNullGraphicsBitmap;
2490 }
2491
2492 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2493 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2494     const wxColour&c1, const wxColour&c2)
2495 {
2496     wxGraphicsBrush p;
2497     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2498     d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
2499     p.SetRefData(d);
2500     return p;
2501 }
2502
2503 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2504 // with radius r and color cColor
2505 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2506     const wxColour &oColor, const wxColour &cColor)
2507 {
2508     wxGraphicsBrush p;
2509     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2510     d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
2511     p.SetRefData(d);
2512     return p;
2513 }
2514
2515 // sets the font
2516 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
2517 {
2518     if ( font.Ok() )
2519     {
2520         wxGraphicsFont p;
2521         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
2522         return p;
2523     }
2524     else
2525         return wxNullGraphicsFont;
2526 }
2527
2528 //
2529 // CoreGraphics Helper Methods
2530 //
2531
2532 // Data Providers and Consumers
2533
2534 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
2535 {
2536     CFMutableDataRef data = (CFMutableDataRef) info;
2537     if ( data )
2538     {
2539         CFDataAppendBytes( data, (const UInt8*) bytes, count );
2540     }
2541     return count;
2542 }
2543
2544 void wxMacReleaseCFDataProviderCallback(void *info,
2545                                       const void *WXUNUSED(data),
2546                                       size_t WXUNUSED(count))
2547 {
2548     if ( info )
2549         CFRelease( (CFDataRef) info );
2550 }
2551
2552 void wxMacReleaseCFDataConsumerCallback( void *info )
2553 {
2554     if ( info )
2555         CFRelease( (CFDataRef) info );
2556 }
2557
2558 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
2559 {
2560     if ( data == NULL )
2561         return NULL;
2562
2563     return CGDataProviderCreateWithCFData( data );
2564 }
2565
2566 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
2567 {
2568     if ( data == NULL )
2569         return NULL;
2570
2571     return CGDataConsumerCreateWithCFData( data );
2572 }
2573
2574 void
2575 wxMacReleaseMemoryBufferProviderCallback(void *info,
2576                                          const void * WXUNUSED_UNLESS_DEBUG(data),
2577                                          size_t WXUNUSED(size))
2578 {
2579     wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
2580
2581     wxASSERT( data == membuf->GetData() ) ;
2582
2583     delete membuf ;
2584 }
2585
2586 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
2587 {
2588     wxMemoryBuffer* b = new wxMemoryBuffer( buf );
2589     if ( b->GetDataLen() == 0 )
2590         return NULL;
2591
2592     return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
2593                                                  wxMacReleaseMemoryBufferProviderCallback );
2594 }