src/osx/carbon/graphics.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/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/private.h"
  39     #include "wx/osx/dcprint.h"
  40     #include "wx/osx/dcclient.h"
  41     #include "wx/osx/dcmemory.h"
  42     #include "wx/osx/private.h"
  43 #else
  44     #include "CoreServices/CoreServices.h"
  45     #include "ApplicationServices/ApplicationServices.h"
  46     #include "wx/osx/core/cfstring.h"
  47     #include "wx/cocoa/dcclient.h"
  48 #endif
  49
  50 #ifdef __WXCOCOA__
  51
  52 CGColorSpaceRef wxMacGetGenericRGBColorSpace()
  53 {
  54     static wxCFRef<CGColorSpaceRef> genericRGBColorSpace;
  55
  56     if (genericRGBColorSpace == NULL)
  57     {
  58         genericRGBColorSpace.reset( CGColorSpaceCreateWithName( kCGColorSpaceGenericRGB ) );
  59     }
  60
  61     return genericRGBColorSpace;
  62 }
  63
  64 int UMAGetSystemVersion()
  65 {
  66     return 0x1050;
  67 }
  68
  69
  70 #define wxOSX_USE_CORE_TEXT 1
  71
  72 #endif
  73
  74 #if wxOSX_USE_COCOA_OR_IPHONE
  75 extern CGContextRef wxOSXGetContextFromCurrentNSContext() ;
  76 extern bool wxOSXLockFocus( WXWidget view) ;
  77 extern void wxOSXUnlockFocus( WXWidget view) ;
  78 #endif
  79
  80
  81 //-----------------------------------------------------------------------------
  82 // constants
  83 //-----------------------------------------------------------------------------
  84
  85 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
  86 #ifndef M_PI
  87 const double M_PI = 3.14159265358979;
  88 #endif
  89 #endif
  90
  91 static const double RAD2DEG = 180.0 / M_PI;
  92
  93 //
  94 // Pen, Brushes and Fonts
  95 //
  96
  97 #pragma mark -
  98 #pragma mark wxMacCoreGraphicsPattern, ImagePattern, HatchPattern classes
  99
 100 OSStatus wxMacDrawCGImage(
 101                   CGContextRef    inContext,
 102                   const CGRect *  inBounds,
 103                   CGImageRef      inImage)
 104 {
 105 #if wxOSX_USE_CARBON
 106     return HIViewDrawCGImage( inContext, inBounds, inImage );
 107 #else
 108     CGContextSaveGState(inContext);
 109     CGContextTranslateCTM(inContext, inBounds->origin.x, inBounds->origin.y + inBounds->size.height);
 110     CGRect r = *inBounds;
 111     r.origin.x = r.origin.y = 0;
 112     CGContextScaleCTM(inContext, 1, -1);
 113     CGContextDrawImage(inContext, r, inImage );
 114     CGContextRestoreGState(inContext);
 115     return noErr;
 116 #endif
 117 }
 118
 119 CGColorRef wxMacCreateCGColor( const wxColour& col )
 120 {
 121     CGColorRef retval = 0;
 122 #ifdef __WXMAC__
 123     retval = col.CreateCGColor();
 124 #else
 125 // TODO add conversion NSColor - CGColorRef (obj-c)
 126 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
 127     if ( CGColorCreateGenericRGB )
 128         retval = CGColorCreateGenericRGB( col.Red() / 255.0 , col.Green() / 255.0, col.Blue() / 255.0, col.Alpha() / 255.0 );
 129     else
 130 #endif
 131     {
 132         CGFloat components[4] = { col.Red() / 255.0, col.Green() / 255.0, col.Blue()  / 255.0, col.Alpha() / 255.0 } ;
 133         retval = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
 134     }
 135
 136 #endif
 137     return retval;
 138 }
 139
 140 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 && wxOSX_USE_CORE_TEXT
 141
 142 CTFontRef wxMacCreateCTFont( const wxFont& font )
 143 {
 144 #ifdef __WXMAC__
 145     return wxCFRetain((CTFontRef) font.MacGetCTFont());
 146 #else
 147     return CTFontCreateWithName( wxCFStringRef( font.GetFaceName(), wxLocale::GetSystemEncoding() ) , font.GetPointSize() , NULL );
 148 #endif
 149 }
 150
 151 #endif
 152
 153 // CGPattern wrapper class: always allocate on heap, never call destructor
 154
 155 class wxMacCoreGraphicsPattern
 156 {
 157 public :
 158     wxMacCoreGraphicsPattern() {}
 159
 160     // is guaranteed to be called only with a non-Null CGContextRef
 161     virtual void Render( CGContextRef ctxRef ) = 0;
 162
 163     operator CGPatternRef() const { return m_patternRef; }
 164
 165 protected :
 166     virtual ~wxMacCoreGraphicsPattern()
 167     {
 168         // as this is called only when the m_patternRef is been released;
 169         // don't release it again
 170     }
 171
 172     static void _Render( void *info, CGContextRef ctxRef )
 173     {
 174         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 175         if ( self && ctxRef )
 176             self->Render( ctxRef );
 177     }
 178
 179     static void _Dispose( void *info )
 180     {
 181         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 182         delete self;
 183     }
 184
 185     CGPatternRef m_patternRef;
 186
 187     static const CGPatternCallbacks ms_Callbacks;
 188 };
 189
 190 const CGPatternCallbacks wxMacCoreGraphicsPattern::ms_Callbacks = { 0, &wxMacCoreGraphicsPattern::_Render, &wxMacCoreGraphicsPattern::_Dispose };
 191
 192 class ImagePattern : public wxMacCoreGraphicsPattern
 193 {
 194 public :
 195     ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
 196     {
 197         wxASSERT( bmp && bmp->Ok() );
 198 #ifdef __WXMAC__
 199         Init( (CGImageRef) bmp->CreateCGImage() , transform );
 200 #endif
 201     }
 202
 203     // ImagePattern takes ownership of CGImageRef passed in
 204     ImagePattern( CGImageRef image , const CGAffineTransform& transform )
 205     {
 206         if ( image )
 207             CFRetain( image );
 208
 209         Init( image , transform );
 210     }
 211
 212     virtual void Render( CGContextRef ctxRef )
 213     {
 214         if (m_image != NULL)
 215             wxMacDrawCGImage( ctxRef, &m_imageBounds, m_image );
 216     }
 217
 218 protected :
 219     void Init( CGImageRef image, const CGAffineTransform& transform )
 220     {
 221         m_image = image;
 222         if ( m_image )
 223         {
 224             m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) );
 225             m_patternRef = CGPatternCreate(
 226                 this , m_imageBounds, transform ,
 227                 m_imageBounds.size.width, m_imageBounds.size.height,
 228                 kCGPatternTilingNoDistortion, true , &wxMacCoreGraphicsPattern::ms_Callbacks );
 229         }
 230     }
 231
 232     virtual ~ImagePattern()
 233     {
 234         if ( m_image )
 235             CGImageRelease( m_image );
 236     }
 237
 238     CGImageRef m_image;
 239     CGRect m_imageBounds;
 240 };
 241
 242 class HatchPattern : public wxMacCoreGraphicsPattern
 243 {
 244 public :
 245     HatchPattern( int hatchstyle, const CGAffineTransform& transform )
 246     {
 247         m_hatch = hatchstyle;
 248         m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat) 8.0 , (CGFloat) 8.0 );
 249         m_patternRef = CGPatternCreate(
 250             this , m_imageBounds, transform ,
 251             m_imageBounds.size.width, m_imageBounds.size.height,
 252             kCGPatternTilingNoDistortion, false , &wxMacCoreGraphicsPattern::ms_Callbacks );
 253     }
 254
 255     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 256     {
 257         CGContextStrokeLineSegments( ctxRef , pts , count );
 258     }
 259
 260     virtual void Render( CGContextRef ctxRef )
 261     {
 262         switch ( m_hatch )
 263         {
 264             case wxBDIAGONAL_HATCH :
 265                 {
 266                     CGPoint pts[] =
 267                     {
 268                     { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 269                     };
 270                     StrokeLineSegments( ctxRef , pts , 2 );
 271                 }
 272                 break;
 273
 274             case wxCROSSDIAG_HATCH :
 275                 {
 276                     CGPoint pts[] =
 277                     {
 278                         { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 } ,
 279                         { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 280                     };
 281                     StrokeLineSegments( ctxRef , pts , 4 );
 282                 }
 283                 break;
 284
 285             case wxFDIAGONAL_HATCH :
 286                 {
 287                     CGPoint pts[] =
 288                     {
 289                     { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 }
 290                     };
 291                     StrokeLineSegments( ctxRef , pts , 2 );
 292                 }
 293                 break;
 294
 295             case wxCROSS_HATCH :
 296                 {
 297                     CGPoint pts[] =
 298                     {
 299                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 300                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 301                     };
 302                     StrokeLineSegments( ctxRef , pts , 4 );
 303                 }
 304                 break;
 305
 306             case wxHORIZONTAL_HATCH :
 307                 {
 308                     CGPoint pts[] =
 309                     {
 310                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 311                     };
 312                     StrokeLineSegments( ctxRef , pts , 2 );
 313                 }
 314                 break;
 315
 316             case wxVERTICAL_HATCH :
 317                 {
 318                     CGPoint pts[] =
 319                     {
 320                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 321                     };
 322                     StrokeLineSegments( ctxRef , pts , 2 );
 323                 }
 324                 break;
 325
 326             default:
 327                 break;
 328         }
 329     }
 330
 331 protected :
 332     virtual ~HatchPattern() {}
 333
 334     CGRect      m_imageBounds;
 335     int         m_hatch;
 336 };
 337
 338 class wxMacCoreGraphicsPenData : public wxGraphicsObjectRefData
 339 {
 340 public:
 341     wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
 342     ~wxMacCoreGraphicsPenData();
 343
 344     void Init();
 345     virtual void Apply( wxGraphicsContext* context );
 346     virtual wxDouble GetWidth() { return m_width; }
 347
 348 protected :
 349     CGLineCap m_cap;
 350     wxCFRef<CGColorRef> m_color;
 351     wxCFRef<CGColorSpaceRef> m_colorSpace;
 352
 353     CGLineJoin m_join;
 354     CGFloat m_width;
 355
 356     int m_count;
 357     const CGFloat *m_lengths;
 358     CGFloat *m_userLengths;
 359
 360
 361     bool m_isPattern;
 362     wxCFRef<CGPatternRef> m_pattern;
 363     CGFloat* m_patternColorComponents;
 364 };
 365
 366 wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) :
 367     wxGraphicsObjectRefData( renderer )
 368 {
 369     Init();
 370
 371     m_color.reset( wxMacCreateCGColor( pen.GetColour() ) ) ;
 372
 373     // TODO: * m_dc->m_scaleX
 374     m_width = pen.GetWidth();
 375     if (m_width <= 0.0)
 376         m_width = (CGFloat) 0.1;
 377
 378     switch ( pen.GetCap() )
 379     {
 380         case wxCAP_ROUND :
 381             m_cap = kCGLineCapRound;
 382             break;
 383
 384         case wxCAP_PROJECTING :
 385             m_cap = kCGLineCapSquare;
 386             break;
 387
 388         case wxCAP_BUTT :
 389             m_cap = kCGLineCapButt;
 390             break;
 391
 392         default :
 393             m_cap = kCGLineCapButt;
 394             break;
 395     }
 396
 397     switch ( pen.GetJoin() )
 398     {
 399         case wxJOIN_BEVEL :
 400             m_join = kCGLineJoinBevel;
 401             break;
 402
 403         case wxJOIN_MITER :
 404             m_join = kCGLineJoinMiter;
 405             break;
 406
 407         case wxJOIN_ROUND :
 408             m_join = kCGLineJoinRound;
 409             break;
 410
 411         default :
 412             m_join = kCGLineJoinMiter;
 413             break;
 414     }
 415
 416     const CGFloat dashUnit = m_width < 1.0 ? (CGFloat) 1.0 : m_width;
 417
 418     const CGFloat dotted[] = { (CGFloat) dashUnit , (CGFloat) (dashUnit + 2.0) };
 419     static const CGFloat short_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 };
 420     static const CGFloat dashed[] = { (CGFloat) 19.0 , (CGFloat) 9.0 };
 421     static const CGFloat dotted_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 , (CGFloat) 3.0 , (CGFloat) 3.0 };
 422
 423     switch ( pen.GetStyle() )
 424     {
 425         case wxSOLID :
 426             break;
 427
 428         case wxDOT :
 429             m_count = WXSIZEOF(dotted);
 430             m_userLengths = new CGFloat[ m_count ] ;
 431             memcpy( m_userLengths, dotted, sizeof(dotted) );
 432             m_lengths = m_userLengths;
 433             break;
 434
 435         case wxLONG_DASH :
 436             m_count = WXSIZEOF(dashed);
 437             m_lengths = dashed;
 438             break;
 439
 440         case wxSHORT_DASH :
 441             m_count = WXSIZEOF(short_dashed);
 442             m_lengths = short_dashed;
 443             break;
 444
 445         case wxDOT_DASH :
 446             m_count = WXSIZEOF(dotted_dashed);
 447             m_lengths = dotted_dashed;
 448             break;
 449
 450         case wxUSER_DASH :
 451             wxDash *dashes;
 452             m_count = pen.GetDashes( &dashes );
 453             if ((dashes != NULL) && (m_count > 0))
 454             {
 455                 m_userLengths = new CGFloat[m_count];
 456                 for ( int i = 0; i < m_count; ++i )
 457                 {
 458                     m_userLengths[i] = dashes[i] * dashUnit;
 459
 460                     if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
 461                         m_userLengths[i] = (CGFloat) (dashUnit + 2.0);
 462                     else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
 463                         m_userLengths[i] = dashUnit;
 464                 }
 465             }
 466             m_lengths = m_userLengths;
 467             break;
 468
 469         case wxSTIPPLE :
 470             {
 471                 wxBitmap* bmp = pen.GetStipple();
 472                 if ( bmp && bmp->Ok() )
 473                 {
 474                     m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 475                     m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 476                     m_patternColorComponents = new CGFloat[1] ;
 477                     m_patternColorComponents[0] = (CGFloat) 1.0;
 478                     m_isPattern = true;
 479                 }
 480             }
 481             break;
 482
 483         default :
 484             {
 485                 m_isPattern = true;
 486                 m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 487                 m_pattern.reset( (CGPatternRef) *( new HatchPattern( pen.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 488                 m_patternColorComponents = new CGFloat[4] ;
 489                 m_patternColorComponents[0] = (CGFloat) (pen.GetColour().Red() / 255.0);
 490                 m_patternColorComponents[1] = (CGFloat) (pen.GetColour().Green() / 255.0);
 491                 m_patternColorComponents[2] = (CGFloat) (pen.GetColour().Blue() / 255.0);
 492                 m_patternColorComponents[3] =  (CGFloat) (pen.GetColour().Alpha() / 255.0);
 493             }
 494             break;
 495     }
 496     if ((m_lengths != NULL) && (m_count > 0))
 497     {
 498         // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 499         m_cap = kCGLineCapButt;
 500     }
 501 }
 502
 503 wxMacCoreGraphicsPenData::~wxMacCoreGraphicsPenData()
 504 {
 505     delete[] m_userLengths;
 506     delete[] m_patternColorComponents;
 507 }
 508
 509 void wxMacCoreGraphicsPenData::Init()
 510 {
 511     m_lengths = NULL;
 512     m_userLengths = NULL;
 513     m_width = 0;
 514     m_count = 0;
 515     m_patternColorComponents = NULL;
 516     m_isPattern = false;
 517 }
 518
 519 void wxMacCoreGraphicsPenData::Apply( wxGraphicsContext* context )
 520 {
 521     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 522     CGContextSetLineWidth( cg , m_width );
 523     CGContextSetLineJoin( cg , m_join );
 524
 525     CGContextSetLineDash( cg , 0 , m_lengths , m_count );
 526     CGContextSetLineCap( cg , m_cap );
 527
 528     if ( m_isPattern )
 529     {
 530         CGAffineTransform matrix = CGContextGetCTM( cg );
 531         CGContextSetPatternPhase( cg, CGSizeMake(matrix.tx, matrix.ty) );
 532         CGContextSetStrokeColorSpace( cg , m_colorSpace );
 533         CGContextSetStrokePattern( cg, m_pattern , m_patternColorComponents );
 534     }
 535     else
 536     {
 537         if ( context->GetLogicalFunction() == wxINVERT || context->GetLogicalFunction() == wxXOR )
 538         {
 539             CGContextSetRGBStrokeColor( cg , (CGFloat) 1.0,(CGFloat)  1.0 , (CGFloat) 1.0, (CGFloat) 1.0 );
 540         }
 541         else
 542             CGContextSetStrokeColorWithColor( cg , m_color );
 543     }
 544 }
 545
 546 //
 547 // Brush
 548 //
 549
 550 static const char *gs_stripedback_xpm[] = {
 551 /* columns rows colors chars-per-pixel */
 552 "4 4 2 1",
 553 ". c #F0F0F0",
 554 "X c #ECECEC",
 555 /* pixels */
 556 "....",
 557 "....",
 558 "XXXX",
 559 "XXXX"
 560 };
 561
 562 wxBitmap gs_stripedback_bmp( wxImage( (const char* const* ) gs_stripedback_xpm  ), -1 ) ;
 563
 564 // make sure we all use one class for all conversions from wx to native colour
 565
 566 class wxMacCoreGraphicsColour
 567 {
 568     public:
 569         wxMacCoreGraphicsColour();
 570         wxMacCoreGraphicsColour(const wxBrush &brush);
 571         ~wxMacCoreGraphicsColour();
 572
 573         void Apply( CGContextRef cgContext );
 574     protected:
 575         void Init();
 576         wxCFRef<CGColorRef> m_color;
 577         wxCFRef<CGColorSpaceRef> m_colorSpace;
 578
 579         bool m_isPattern;
 580         wxCFRef<CGPatternRef> m_pattern;
 581         CGFloat* m_patternColorComponents;
 582 } ;
 583
 584 wxMacCoreGraphicsColour::~wxMacCoreGraphicsColour()
 585 {
 586     delete[] m_patternColorComponents;
 587 }
 588
 589 void wxMacCoreGraphicsColour::Init()
 590 {
 591     m_isPattern = false;
 592     m_patternColorComponents = NULL;
 593 }
 594
 595 void wxMacCoreGraphicsColour::Apply( CGContextRef cgContext )
 596 {
 597     if ( m_isPattern )
 598     {
 599         CGAffineTransform matrix = CGContextGetCTM( cgContext );
 600         CGContextSetPatternPhase( cgContext, CGSizeMake(matrix.tx, matrix.ty) );
 601         CGContextSetFillColorSpace( cgContext , m_colorSpace );
 602         CGContextSetFillPattern( cgContext, m_pattern , m_patternColorComponents );
 603     }
 604     else
 605     {
 606         CGContextSetFillColorWithColor( cgContext, m_color );
 607     }
 608 }
 609
 610 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour()
 611 {
 612     Init();
 613 }
 614
 615 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour( const wxBrush &brush )
 616 {
 617     Init();
 618     if ( brush.GetStyle() == wxSOLID )
 619     {
 620         m_color.reset( wxMacCreateCGColor( brush.GetColour() ));
 621     }
 622     else if ( brush.IsHatch() )
 623     {
 624         m_isPattern = true;
 625         m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 626         m_pattern.reset( (CGPatternRef) *( new HatchPattern( brush.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 627
 628         m_patternColorComponents = new CGFloat[4] ;
 629         m_patternColorComponents[0] = (CGFloat) (brush.GetColour().Red() / 255.0);
 630         m_patternColorComponents[1] = (CGFloat) (brush.GetColour().Green() / 255.0);
 631         m_patternColorComponents[2] = (CGFloat) (brush.GetColour().Blue() / 255.0);
 632         m_patternColorComponents[3] = (CGFloat) (brush.GetColour().Alpha() / 255.0);
 633     }
 634     else
 635     {
 636         // now brush is a bitmap
 637         wxBitmap* bmp = brush.GetStipple();
 638         if ( bmp && bmp->Ok() )
 639         {
 640             m_isPattern = true;
 641             m_patternColorComponents = new CGFloat[1] ;
 642             m_patternColorComponents[0] = (CGFloat) 1.0;
 643             m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 644             m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 645         }
 646     }
 647 }
 648
 649 class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
 650 {
 651 public:
 652     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
 653     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
 654     ~wxMacCoreGraphicsBrushData ();
 655
 656     virtual void Apply( wxGraphicsContext* context );
 657     void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 658         const wxColour&c1, const wxColour&c2 );
 659     void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 660     const wxColour &oColor, const wxColour &cColor );
 661
 662     virtual bool IsShading() { return m_isShading; }
 663     CGShadingRef GetShading() { return m_shading; }
 664 protected:
 665     CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 );
 666     static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
 667     virtual void Init();
 668
 669     wxMacCoreGraphicsColour m_cgColor;
 670
 671     bool m_isShading;
 672     CGFunctionRef m_gradientFunction;
 673     CGShadingRef m_shading;
 674     CGFloat *m_gradientComponents;
 675 };
 676
 677 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
 678 {
 679     Init();
 680 }
 681
 682 void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 683         const wxColour&c1, const wxColour&c2 )
 684 {
 685     m_gradientFunction = CreateGradientFunction( c1, c2 );
 686     m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) x1, (CGFloat) y1),
 687                                         CGPointMake((CGFloat) x2,(CGFloat) y2), m_gradientFunction, true, true ) ;
 688     m_isShading = true ;
 689 }
 690
 691 void wxMacCoreGraphicsBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 692     const wxColour &oColor, const wxColour &cColor )
 693 {
 694     m_gradientFunction = CreateGradientFunction( oColor, cColor );
 695     m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) xo,(CGFloat) yo), 0,
 696                                         CGPointMake((CGFloat) xc,(CGFloat) yc), (CGFloat) radius, m_gradientFunction, true, true ) ;
 697     m_isShading = true ;
 698 }
 699
 700 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer ),
 701     m_cgColor( brush )
 702 {
 703     Init();
 704
 705 }
 706
 707 wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
 708 {
 709     if ( m_shading )
 710         CGShadingRelease(m_shading);
 711
 712     if( m_gradientFunction )
 713         CGFunctionRelease(m_gradientFunction);
 714
 715     delete[] m_gradientComponents;
 716 }
 717
 718 void wxMacCoreGraphicsBrushData::Init()
 719 {
 720     m_gradientFunction = NULL;
 721     m_shading = NULL;
 722     m_gradientComponents = NULL;
 723     m_isShading = false;
 724 }
 725
 726 void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
 727 {
 728     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 729
 730     if ( m_isShading )
 731     {
 732         // nothing to set as shades are processed by clipping using the path and filling
 733     }
 734     else
 735     {
 736         m_cgColor.Apply( cg );
 737     }
 738 }
 739
 740 void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
 741 {
 742     CGFloat* colors = (CGFloat*) info ;
 743     CGFloat f = *in;
 744     for( int i = 0 ; i < 4 ; ++i )
 745     {
 746         out[i] = colors[i] + ( colors[4+i] - colors[i] ) * f;
 747     }
 748 }
 749
 750 CGFunctionRef wxMacCoreGraphicsBrushData::CreateGradientFunction( const wxColour& c1, const wxColour& c2 )
 751 {
 752     static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL };
 753     static const CGFloat input_value_range [2] = { 0, 1 };
 754     static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 };
 755     m_gradientComponents = new CGFloat[8] ;
 756     m_gradientComponents[0] = (CGFloat) (c1.Red() / 255.0);
 757     m_gradientComponents[1] = (CGFloat) (c1.Green() / 255.0);
 758     m_gradientComponents[2] = (CGFloat) (c1.Blue() / 255.0);
 759     m_gradientComponents[3] = (CGFloat) (c1.Alpha() / 255.0);
 760     m_gradientComponents[4] = (CGFloat) (c2.Red() / 255.0);
 761     m_gradientComponents[5] = (CGFloat) (c2.Green() / 255.0);
 762     m_gradientComponents[6] = (CGFloat) (c2.Blue() / 255.0);
 763     m_gradientComponents[7] = (CGFloat) (c2.Alpha() / 255.0);
 764
 765     return CGFunctionCreate ( m_gradientComponents,  1,
 766                             input_value_range,
 767                             4,
 768                             output_value_ranges,
 769                             &callbacks);
 770 }
 771
 772 //
 773 // Font
 774 //
 775
 776 #if wxOSX_USE_IPHONE
 777
 778 extern UIFont* CreateUIFont( const wxFont& font );
 779 extern void DrawTextInContext( CGContextRef context, CGPoint where, UIFont *font, NSString* text );
 780 extern CGSize MeasureTextInContext( UIFont *font, NSString* text );
 781
 782 #endif
 783
 784 class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
 785 {
 786 public:
 787     wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
 788     ~wxMacCoreGraphicsFontData();
 789
 790 #if wxOSX_USE_ATSU_TEXT
 791     virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
 792 #endif
 793 #if wxOSX_USE_CORE_TEXT
 794     CTFontRef GetCTFont() const { return m_ctFont ; }
 795 #endif
 796     wxColour GetColour() const { return m_colour ; }
 797
 798     bool GetUnderlined() const { return m_underlined ; }
 799 #if wxOSX_USE_IPHONE
 800     UIFont* GetUIFont() const { return m_uiFont; }
 801 #endif
 802 private :
 803     wxColour m_colour;
 804     bool m_underlined;
 805 #if wxOSX_USE_ATSU_TEXT
 806     ATSUStyle m_macATSUIStyle;
 807 #endif
 808 #if wxOSX_USE_CORE_TEXT
 809     wxCFRef< CTFontRef > m_ctFont;
 810 #endif
 811 #if wxOSX_USE_IPHONE
 812     UIFont*  m_uiFont;
 813 #endif
 814 };
 815
 816 wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
 817 {
 818     m_colour = col;
 819     m_underlined = font.GetUnderlined();
 820
 821 #if wxOSX_USE_CORE_TEXT
 822     m_ctFont.reset( wxMacCreateCTFont( font ) );
 823 #endif
 824 #if wxOSX_USE_IPHONE
 825     m_uiFont = CreateUIFont(font);
 826     wxMacCocoaRetain( m_uiFont );
 827 #endif
 828 #if wxOSX_USE_ATSU_TEXT
 829     OSStatus status = noErr;
 830     m_macATSUIStyle = NULL;
 831
 832     status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
 833
 834     wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
 835
 836     // we need the scale here ...
 837
 838     Fixed atsuSize = IntToFixed( int( 1 * font.MacGetFontSize()) );
 839     RGBColor atsuColor ;
 840     col.GetRGBColor( &atsuColor );
 841     ATSUAttributeTag atsuTags[] =
 842     {
 843             kATSUSizeTag ,
 844             kATSUColorTag ,
 845     };
 846     ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 847     {
 848             sizeof( Fixed ) ,
 849             sizeof( RGBColor ) ,
 850     };
 851     ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 852     {
 853             &atsuSize ,
 854             &atsuColor ,
 855     };
 856
 857     status = ::ATSUSetAttributes(
 858         m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
 859         atsuTags, atsuSizes, atsuValues);
 860
 861     wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
 862 #endif
 863 }
 864
 865 wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
 866 {
 867 #if wxOSX_USE_CORE_TEXT
 868 #endif
 869 #if wxOSX_USE_ATSU_TEXT
 870     if ( m_macATSUIStyle )
 871     {
 872         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 873         m_macATSUIStyle = NULL;
 874     }
 875 #endif
 876 #if wxOSX_USE_IPHONE
 877     wxMacCocoaRelease( m_uiFont );
 878 #endif
 879 }
 880
 881 class wxMacCoreGraphicsBitmapData : public wxGraphicsObjectRefData
 882 {
 883 public:
 884     wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome );
 885     ~wxMacCoreGraphicsBitmapData();
 886
 887     virtual CGImageRef GetBitmap() { return m_bitmap; }
 888     bool IsMonochrome() { return m_monochrome; }
 889 private :
 890     CGImageRef m_bitmap;
 891     bool m_monochrome;
 892 };
 893
 894 wxMacCoreGraphicsBitmapData::wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome ) : wxGraphicsObjectRefData( renderer ),
 895     m_bitmap(bitmap), m_monochrome(monochrome)
 896 {
 897 }
 898
 899 wxMacCoreGraphicsBitmapData::~wxMacCoreGraphicsBitmapData()
 900 {
 901     CGImageRelease( m_bitmap );
 902 }
 903
 904 //
 905 // Graphics Matrix
 906 //
 907
 908 //-----------------------------------------------------------------------------
 909 // wxMacCoreGraphicsMatrix declaration
 910 //-----------------------------------------------------------------------------
 911
 912 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
 913 {
 914 public :
 915     wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
 916
 917     virtual ~wxMacCoreGraphicsMatrixData() ;
 918
 919     virtual wxGraphicsObjectRefData *Clone() const ;
 920
 921     // concatenates the matrix
 922     virtual void Concat( const wxGraphicsMatrixData *t );
 923
 924     // sets the matrix to the respective values
 925     virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
 926         wxDouble tx=0.0, wxDouble ty=0.0);
 927
 928     // gets the component valuess of the matrix
 929     virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL,  wxDouble* c=NULL,
 930                      wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
 931
 932     // makes this the inverse matrix
 933     virtual void Invert();
 934
 935     // returns true if the elements of the transformation matrix are equal ?
 936     virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
 937
 938     // return true if this is the identity matrix
 939     virtual bool IsIdentity() const;
 940
 941     //
 942     // transformation
 943     //
 944
 945     // add the translation to this matrix
 946     virtual void Translate( wxDouble dx , wxDouble dy );
 947
 948     // add the scale to this matrix
 949     virtual void Scale( wxDouble xScale , wxDouble yScale );
 950
 951     // add the rotation to this matrix (radians)
 952     virtual void Rotate( wxDouble angle );
 953
 954     //
 955     // apply the transforms
 956     //
 957
 958     // applies that matrix to the point
 959     virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
 960
 961     // applies the matrix except for translations
 962     virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
 963
 964     // returns the native representation
 965     virtual void * GetNativeMatrix() const;
 966
 967 private :
 968     CGAffineTransform m_matrix;
 969 } ;
 970
 971 //-----------------------------------------------------------------------------
 972 // wxMacCoreGraphicsMatrix implementation
 973 //-----------------------------------------------------------------------------
 974
 975 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
 976 {
 977 }
 978
 979 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
 980 {
 981 }
 982
 983 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
 984 {
 985     wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
 986     m->m_matrix = m_matrix ;
 987     return m;
 988 }
 989
 990 // concatenates the matrix
 991 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
 992 {
 993     m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
 994 }
 995
 996 // sets the matrix to the respective values
 997 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
 998     wxDouble tx, wxDouble ty)
 999 {
1000     m_matrix = CGAffineTransformMake((CGFloat) a,(CGFloat) b,(CGFloat) c,(CGFloat) d,(CGFloat) tx,(CGFloat) ty);
1001 }
1002
1003 // gets the component valuess of the matrix
1004 void wxMacCoreGraphicsMatrixData::Get(wxDouble* a, wxDouble* b,  wxDouble* c,
1005                                       wxDouble* d, wxDouble* tx, wxDouble* ty) const
1006 {
1007     if (a)  *a = m_matrix.a;
1008     if (b)  *b = m_matrix.b;
1009     if (c)  *c = m_matrix.c;
1010     if (d)  *d = m_matrix.d;
1011     if (tx) *tx= m_matrix.tx;
1012     if (ty) *ty= m_matrix.ty;
1013 }
1014
1015 // makes this the inverse matrix
1016 void wxMacCoreGraphicsMatrixData::Invert()
1017 {
1018     m_matrix = CGAffineTransformInvert( m_matrix );
1019 }
1020
1021 // returns true if the elements of the transformation matrix are equal ?
1022 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
1023 {
1024     return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
1025 }
1026
1027 // return true if this is the identity matrix
1028 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
1029 {
1030     return ( m_matrix.a == 1 && m_matrix.d == 1 &&
1031         m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
1032 }
1033
1034 //
1035 // transformation
1036 //
1037
1038 // add the translation to this matrix
1039 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
1040 {
1041     m_matrix = CGAffineTransformTranslate( m_matrix, (CGFloat) dx, (CGFloat) dy);
1042 }
1043
1044 // add the scale to this matrix
1045 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1046 {
1047     m_matrix = CGAffineTransformScale( m_matrix, (CGFloat) xScale, (CGFloat) yScale);
1048 }
1049
1050 // add the rotation to this matrix (radians)
1051 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
1052 {
1053     m_matrix = CGAffineTransformRotate( m_matrix, (CGFloat) angle);
1054 }
1055
1056 //
1057 // apply the transforms
1058 //
1059
1060 // applies that matrix to the point
1061 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1062 {
1063     CGPoint pt = CGPointApplyAffineTransform( CGPointMake((CGFloat) *x,(CGFloat) *y), m_matrix);
1064
1065     *x = pt.x;
1066     *y = pt.y;
1067 }
1068
1069 // applies the matrix except for translations
1070 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1071 {
1072     CGSize sz = CGSizeApplyAffineTransform( CGSizeMake((CGFloat) *dx,(CGFloat) *dy) , m_matrix );
1073     *dx = sz.width;
1074     *dy = sz.height;
1075 }
1076
1077 // returns the native representation
1078 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
1079 {
1080     return (void*) &m_matrix;
1081 }
1082
1083 //
1084 // Graphics Path
1085 //
1086
1087 //-----------------------------------------------------------------------------
1088 // wxMacCoreGraphicsPath declaration
1089 //-----------------------------------------------------------------------------
1090
1091 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
1092 {
1093 public :
1094     wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
1095
1096     ~wxMacCoreGraphicsPathData();
1097
1098     virtual wxGraphicsObjectRefData *Clone() const;
1099
1100     // begins a new subpath at (x,y)
1101     virtual void MoveToPoint( wxDouble x, wxDouble y );
1102
1103     // adds a straight line from the current point to (x,y)
1104     virtual void AddLineToPoint( wxDouble x, wxDouble y );
1105
1106     // adds a cubic Bezier curve from the current point, using two control points and an end point
1107     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
1108
1109     // closes the current sub-path
1110     virtual void CloseSubpath();
1111
1112     // gets the last point of the current path, (0,0) if not yet set
1113     virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
1114
1115     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1116     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
1117
1118     //
1119     // These are convenience functions which - if not available natively will be assembled
1120     // using the primitives from above
1121     //
1122
1123     // adds a quadratic Bezier curve from the current point, using a control point and an end point
1124     virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
1125
1126     // appends a rectangle as a new closed subpath
1127     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1128
1129     // appends an ellipsis as a new closed subpath fitting the passed rectangle
1130     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1131
1132     // 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)
1133     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1134
1135     // adds another path
1136     virtual void AddPath( const wxGraphicsPathData* path );
1137
1138     // returns the native path
1139     virtual void * GetNativePath() const { return m_path; }
1140
1141     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1142     virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1143
1144     // transforms each point of this path by the matrix
1145     virtual void Transform( const wxGraphicsMatrixData* matrix );
1146
1147     // gets the bounding box enclosing all points (possibly including control points)
1148     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
1149
1150     virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
1151 private :
1152     CGMutablePathRef m_path;
1153 };
1154
1155 //-----------------------------------------------------------------------------
1156 // wxMacCoreGraphicsPath implementation
1157 //-----------------------------------------------------------------------------
1158
1159 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1160 {
1161     if ( path )
1162         m_path = path;
1163     else
1164         m_path = CGPathCreateMutable();
1165 }
1166
1167 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1168 {
1169     CGPathRelease( m_path );
1170 }
1171
1172 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1173 {
1174     wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1175     return clone ;
1176 }
1177
1178
1179 // opens (starts) a new subpath
1180 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1181 {
1182     CGPathMoveToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1183 }
1184
1185 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1186 {
1187     CGPathAddLineToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1188 }
1189
1190 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1191 {
1192     CGPathAddCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) cx2, (CGFloat) cy2, (CGFloat) x , (CGFloat) y );
1193 }
1194
1195 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1196 {
1197     CGPathAddQuadCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) x , (CGFloat) y );
1198 }
1199
1200 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1201 {
1202     CGRect cgRect = { { (CGFloat) x , (CGFloat) y } , { (CGFloat) w , (CGFloat) h } };
1203     CGPathAddRect( m_path , NULL , cgRect );
1204 }
1205
1206 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1207 {
1208     CGPathAddArc( m_path , NULL , (CGFloat) x , (CGFloat) y , (CGFloat) r , (CGFloat) 0.0 , (CGFloat) (2 * M_PI) , true );
1209 }
1210
1211 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1212 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1213 {
1214     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1215     CGPathAddArc( m_path, NULL , (CGFloat) x, (CGFloat) y, (CGFloat) r, (CGFloat) startAngle, (CGFloat) endAngle, !clockwise);
1216 }
1217
1218 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1219 {
1220     CGPathAddArcToPoint( m_path, NULL , (CGFloat) x1, (CGFloat) y1, (CGFloat) x2, (CGFloat) y2, (CGFloat) r);
1221 }
1222
1223 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1224 {
1225     CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1226 }
1227
1228 // closes the current subpath
1229 void wxMacCoreGraphicsPathData::CloseSubpath()
1230 {
1231     CGPathCloseSubpath( m_path );
1232 }
1233
1234 // gets the last point of the current path, (0,0) if not yet set
1235 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1236 {
1237     CGPoint p = CGPathGetCurrentPoint( m_path );
1238     *x = p.x;
1239     *y = p.y;
1240 }
1241
1242 // transforms each point of this path by the matrix
1243 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1244 {
1245     CGMutablePathRef p = CGPathCreateMutable() ;
1246     CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1247     CGPathRelease( m_path );
1248     m_path = p;
1249 }
1250
1251 // gets the bounding box enclosing all points (possibly including control points)
1252 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1253 {
1254     CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1255     *x = bounds.origin.x;
1256     *y = bounds.origin.y;
1257     *w = bounds.size.width;
1258     *h = bounds.size.height;
1259 }
1260
1261 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle) const
1262 {
1263     return CGPathContainsPoint( m_path, NULL, CGPointMake((CGFloat) x,(CGFloat) y), fillStyle == wxODDEVEN_RULE );
1264 }
1265
1266 //
1267 // Graphics Context
1268 //
1269
1270 //-----------------------------------------------------------------------------
1271 // wxMacCoreGraphicsContext declaration
1272 //-----------------------------------------------------------------------------
1273
1274 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1275 {
1276 public:
1277     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1278
1279 #if wxOSX_USE_CARBON
1280     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1281 #endif
1282
1283     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1284
1285     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1286
1287     wxMacCoreGraphicsContext();
1288
1289     ~wxMacCoreGraphicsContext();
1290
1291     void Init();
1292
1293     // returns the size of the graphics context in device coordinates
1294     virtual void GetSize( wxDouble* width, wxDouble* height);
1295
1296     virtual void StartPage( wxDouble width, wxDouble height );
1297
1298     virtual void EndPage();
1299
1300     virtual void Flush();
1301
1302     // push the current state of the context, ie the transformation matrix on a stack
1303     virtual void PushState();
1304
1305     // pops a stored state from the stack
1306     virtual void PopState();
1307
1308     // clips drawings to the region
1309     virtual void Clip( const wxRegion &region );
1310
1311     // clips drawings to the rect
1312     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1313
1314     // resets the clipping to original extent
1315     virtual void ResetClip();
1316
1317     virtual void * GetNativeContext();
1318
1319     bool SetLogicalFunction( wxRasterOperationMode function );
1320     //
1321     // transformation
1322     //
1323
1324     // translate
1325     virtual void Translate( wxDouble dx , wxDouble dy );
1326
1327     // scale
1328     virtual void Scale( wxDouble xScale , wxDouble yScale );
1329
1330     // rotate (radians)
1331     virtual void Rotate( wxDouble angle );
1332
1333     // concatenates this transform with the current transform of this context
1334     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1335
1336     // sets the transform of this context
1337     virtual void SetTransform( const wxGraphicsMatrix& matrix );
1338
1339     // gets the matrix of this context
1340     virtual wxGraphicsMatrix GetTransform() const;
1341     //
1342     // setting the paint
1343     //
1344
1345     // strokes along a path with the current pen
1346     virtual void StrokePath( const wxGraphicsPath &path );
1347
1348     // fills a path with the current brush
1349     virtual void FillPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1350
1351     // draws a path by first filling and then stroking
1352     virtual void DrawPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1353
1354     virtual bool ShouldOffset() const
1355     {
1356         int penwidth = 0 ;
1357         if ( !m_pen.IsNull() )
1358         {
1359             penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1360             if ( penwidth == 0 )
1361                 penwidth = 1;
1362         }
1363         return ( penwidth % 2 ) == 1;
1364     }
1365     //
1366     // text
1367     //
1368
1369     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1370         wxDouble *descent, wxDouble *externalLeading ) const;
1371
1372     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1373
1374     //
1375     // image support
1376     //
1377
1378     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1379
1380     virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1381
1382     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1383
1384     void SetNativeContext( CGContextRef cg );
1385
1386     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsContext)
1387
1388 private:
1389     bool EnsureIsValid();
1390
1391     virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
1392     virtual void DoDrawRotatedText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1393
1394     CGContextRef m_cgContext;
1395 #if wxOSX_USE_CARBON
1396     WindowRef m_windowRef;
1397 #else
1398     WXWidget m_view;
1399 #endif
1400     bool m_contextSynthesized;
1401     CGAffineTransform m_windowTransform;
1402     wxDouble m_width;
1403     wxDouble m_height;
1404     bool m_invisible;
1405
1406 #if wxOSX_USE_COCOA_OR_CARBON
1407     wxCFRef<HIShapeRef> m_clipRgn;
1408 #endif
1409 };
1410
1411 //-----------------------------------------------------------------------------
1412 // device context implementation
1413 //
1414 // more and more of the dc functionality should be implemented by calling
1415 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1416 // also coordinate conversions should be moved to native matrix ops
1417 //-----------------------------------------------------------------------------
1418
1419 // we always stock two context states, one at entry, to be able to preserve the
1420 // state we were called with, the other one after changing to HI Graphics orientation
1421 // (this one is used for getting back clippings etc)
1422
1423 //-----------------------------------------------------------------------------
1424 // wxMacCoreGraphicsContext implementation
1425 //-----------------------------------------------------------------------------
1426
1427 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1428
1429 class wxQuartzOffsetHelper
1430 {
1431 public :
1432     wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1433     {
1434         m_cg = cg;
1435         m_offset = offset;
1436         if ( m_offset )
1437             CGContextTranslateCTM( m_cg, (CGFloat) 0.5, (CGFloat) 0.5 );
1438     }
1439     ~wxQuartzOffsetHelper( )
1440     {
1441         if ( m_offset )
1442             CGContextTranslateCTM( m_cg, (CGFloat) -0.5, (CGFloat) -0.5 );
1443     }
1444 public :
1445     CGContextRef m_cg;
1446     bool m_offset;
1447 } ;
1448
1449 void wxMacCoreGraphicsContext::Init()
1450 {
1451     m_cgContext = NULL;
1452     m_contextSynthesized = false;
1453     m_width = 0;
1454     m_height = 0;
1455 #if wxOSX_USE_CARBON
1456     m_windowRef = NULL;
1457 #endif
1458 #if wxOSX_USE_COCOA_OR_IPHONE
1459     m_view = NULL;
1460 #endif
1461     m_invisible = false;
1462 }
1463
1464 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer)
1465 {
1466     Init();
1467     SetNativeContext(cgcontext);
1468     m_width = width;
1469     m_height = height;
1470 }
1471
1472 #if wxOSX_USE_CARBON
1473 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1474 {
1475     Init();
1476     m_windowRef = window;
1477 }
1478 #endif
1479
1480 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1481 {
1482     Init();
1483
1484     wxSize sz = window->GetSize();
1485     m_width = sz.x;
1486     m_height = sz.y;
1487
1488 #if wxOSX_USE_COCOA_OR_IPHONE
1489     m_view = window->GetHandle();
1490
1491     if ( !((wxWidgetCocoaImpl*) window->GetPeer())->IsFlipped() )
1492     {
1493         m_windowTransform = CGAffineTransformMakeTranslation( 0 , m_height );
1494         m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1495     }
1496     else
1497     {
1498         m_windowTransform = CGAffineTransformIdentity;
1499     }
1500 #else
1501     int originX , originY;
1502     originX = originY = 0;
1503     Rect bounds = { 0,0,0,0 };
1504     m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1505     window->MacWindowToRootWindow( &originX , &originY );
1506     GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1507     m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1508     m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1509     m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1510 #endif
1511 }
1512
1513 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1514 {
1515     Init();
1516 }
1517
1518 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1519 {
1520     Init();
1521     wxLogDebug(wxT("Illegal Constructor called"));
1522 }
1523
1524 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1525 {
1526     SetNativeContext(NULL);
1527 }
1528
1529 void wxMacCoreGraphicsContext::GetSize( wxDouble* width, wxDouble* height)
1530 {
1531     *width = m_width;
1532     *height = m_height;
1533 }
1534
1535
1536 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1537 {
1538     CGRect r;
1539     if ( width != 0 && height != 0)
1540         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) width  , (CGFloat) height );
1541     else
1542         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) m_width  , (CGFloat) m_height );
1543
1544     CGContextBeginPage(m_cgContext,  &r );
1545 //    CGContextTranslateCTM( m_cgContext , 0 ,  height == 0 ? m_height : height );
1546 //    CGContextScaleCTM( m_cgContext , 1 , -1 );
1547 }
1548
1549 void wxMacCoreGraphicsContext::EndPage()
1550 {
1551     CGContextEndPage(m_cgContext);
1552 }
1553
1554 void wxMacCoreGraphicsContext::Flush()
1555 {
1556     CGContextFlush(m_cgContext);
1557 }
1558
1559 bool wxMacCoreGraphicsContext::EnsureIsValid()
1560 {
1561     if ( !m_cgContext )
1562     {
1563         if (m_invisible)
1564             return false;
1565
1566 #if wxOSX_USE_COCOA_OR_IPHONE
1567         if ( wxOSXLockFocus(m_view) )
1568         {
1569             m_cgContext = wxOSXGetContextFromCurrentNSContext();
1570             wxASSERT_MSG( m_cgContext != NULL, _T("Unable to retrieve drawing context from View"));
1571         }
1572         else
1573         {
1574             m_invisible = true;
1575         }
1576 #endif
1577 #if wxOSX_USE_CARBON
1578         OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1579         if ( status != noErr )
1580         {
1581             wxFAIL_MSG("Cannot nest wxDCs on the same window");
1582         }
1583 #endif
1584         if ( m_cgContext )
1585         {
1586             CGContextConcatCTM( m_cgContext, m_windowTransform );
1587             CGContextSaveGState( m_cgContext );
1588             m_contextSynthesized = true;
1589             if ( m_clipRgn.get() )
1590             {
1591                 // the clip region is in device coordinates, so we convert this again to user coordinates
1592                 wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1593                 CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero,m_windowTransform);
1594                 HIShapeOffset( hishape, -transformedOrigin.x, -transformedOrigin.y );
1595                 // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1596                 if ( HIShapeIsEmpty(hishape))
1597                 {
1598                     CGRect empty = CGRectMake( 0,0,0,0 );
1599                     CGContextClipToRect( m_cgContext, empty );
1600                 }
1601                 else
1602                 {
1603                     HIShapeReplacePathInCGContext( hishape, m_cgContext );
1604                     CGContextClip( m_cgContext );
1605                 }
1606             }
1607             CGContextSaveGState( m_cgContext );
1608
1609 #if 0 // turn on for debugging of clientdc
1610             static float color = 0.5 ;
1611             static int channel = 0 ;
1612             CGRect bounds = CGRectMake(-1000,-1000,2000,2000);
1613             CGContextSetRGBFillColor( m_cgContext, channel == 0 ? color : 0.5 ,
1614                 channel == 1 ? color : 0.5 , channel == 2 ? color : 0.5 , 1 );
1615             CGContextFillRect( m_cgContext, bounds );
1616             color += 0.1 ;
1617             if ( color > 0.9 )
1618             {
1619                 color = 0.5 ;
1620                 channel++ ;
1621                 if ( channel == 3 )
1622                     channel = 0 ;
1623             }
1624 #endif
1625         }
1626     }
1627     return m_cgContext != NULL;
1628 }
1629
1630 // TODO test whether the private CGContextSetCompositeOperation works under 10.3 (using NSCompositingModes)
1631
1632 bool wxMacCoreGraphicsContext::SetLogicalFunction( wxRasterOperationMode function )
1633 {
1634     if (m_logicalFunction == function)
1635         return true;
1636
1637     if (EnsureIsValid()==false)
1638         return true;
1639
1640     bool retval = false;
1641     bool shouldAntiAlias = true;
1642     CGBlendMode mode = kCGBlendModeNormal;
1643
1644 #if defined(__WXMAC__) && ( wxOSX_USE_IPHONE || ( MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 ) )
1645 #if wxOSX_USE_IPHONE
1646     if ( 1 )
1647 #else
1648     if ( UMAGetSystemVersion() >= 0x1050 )
1649 #endif
1650     {
1651         retval = true;
1652         switch ( function )
1653         {
1654             // TODO find best corresponding porter duff modes
1655             case wxCOPY :
1656                 mode = kCGBlendModeCopy;
1657                 break;
1658             case wxCLEAR :
1659                 mode = kCGBlendModeClear;
1660                 break;
1661             case wxXOR :
1662                 mode = kCGBlendModeXOR;
1663                 shouldAntiAlias = false;
1664                 break;
1665             default :
1666                 retval = false;
1667                 break;
1668         }
1669     }
1670     else
1671 #endif
1672     {
1673         if ( function == wxCOPY )
1674         {
1675             retval = true;
1676         }
1677         else if ( function == wxINVERT || function == wxXOR )
1678         {
1679             // change color to white
1680             mode = kCGBlendModeExclusion;
1681             shouldAntiAlias = false;
1682             retval = true;
1683         }
1684     }
1685
1686     if (retval)
1687     {
1688         m_logicalFunction = function;
1689         CGContextSetBlendMode( m_cgContext, mode );
1690         CGContextSetShouldAntialias(m_cgContext, shouldAntiAlias);
1691     }
1692     return retval ;
1693 }
1694
1695 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1696 {
1697 #if wxOSX_USE_COCOA_OR_CARBON
1698     if( m_cgContext )
1699     {
1700         wxCFRef<HIShapeRef> shape = wxCFRefFromGet(region.GetWXHRGN());
1701         // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1702         if ( HIShapeIsEmpty(shape))
1703         {
1704             CGRect empty = CGRectMake( 0,0,0,0 );
1705             CGContextClipToRect( m_cgContext, empty );
1706         }
1707         else
1708         {
1709             HIShapeReplacePathInCGContext( shape, m_cgContext );
1710             CGContextClip( m_cgContext );
1711         }
1712     }
1713     else
1714     {
1715         // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1716         // to regions we try at least to have correct translations
1717         HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1718
1719         CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1720         HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1721         m_clipRgn.reset(mutableShape);
1722     }
1723 #else
1724     // allow usage as measuring context
1725     // wxASSERT_MSG( m_cgContext != NULL, "Needs a valid context for clipping" );
1726 #endif
1727 }
1728
1729 // clips drawings to the rect
1730 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1731 {
1732     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1733     if ( m_cgContext )
1734     {
1735         CGContextClipToRect( m_cgContext, r );
1736     }
1737     else
1738     {
1739 #if wxOSX_USE_COCOA_OR_CARBON
1740         // the clipping itself must be stored as device coordinates, otherwise
1741         // we cannot apply it back correctly
1742         r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
1743         m_clipRgn.reset(HIShapeCreateWithRect(&r));
1744 #else
1745     // allow usage as measuring context
1746     // wxFAIL_MSG( "Needs a valid context for clipping" );
1747 #endif
1748     }
1749 }
1750
1751     // resets the clipping to original extent
1752 void wxMacCoreGraphicsContext::ResetClip()
1753 {
1754     if ( m_cgContext )
1755     {
1756         // there is no way for clearing the clip, we can only revert to the stored
1757         // state, but then we have to make sure everything else is NOT restored
1758         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1759         CGContextRestoreGState( m_cgContext );
1760         CGContextSaveGState( m_cgContext );
1761         CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
1762         transformNew = CGAffineTransformInvert( transformNew ) ;
1763         CGContextConcatCTM( m_cgContext, transformNew);
1764         CGContextConcatCTM( m_cgContext, transform);
1765     }
1766     else
1767     {
1768 #if wxOSX_USE_COCOA_OR_CARBON
1769         m_clipRgn.reset();
1770 #else
1771     // allow usage as measuring context
1772     // wxFAIL_MSG( "Needs a valid context for clipping" );
1773 #endif
1774     }
1775 }
1776
1777 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1778 {
1779     if ( m_pen.IsNull() )
1780         return ;
1781
1782     if (EnsureIsValid()==false)
1783         return;
1784
1785     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1786
1787     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1788     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1789     CGContextStrokePath( m_cgContext );
1790 }
1791
1792 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1793 {
1794     if (EnsureIsValid()==false)
1795         return;
1796
1797     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1798     {
1799         // when using shading, we cannot draw pen and brush at the same time
1800         // revert to the base implementation of first filling and then stroking
1801         wxGraphicsContext::DrawPath( path, fillStyle );
1802         return;
1803     }
1804
1805     CGPathDrawingMode mode = kCGPathFill ;
1806     if ( m_brush.IsNull() )
1807     {
1808         if ( m_pen.IsNull() )
1809             return;
1810         else
1811             mode = kCGPathStroke;
1812     }
1813     else
1814     {
1815         if ( m_pen.IsNull() )
1816         {
1817             if ( fillStyle == wxODDEVEN_RULE )
1818                 mode = kCGPathEOFill;
1819             else
1820                 mode = kCGPathFill;
1821         }
1822         else
1823         {
1824             if ( fillStyle == wxODDEVEN_RULE )
1825                 mode = kCGPathEOFillStroke;
1826             else
1827                 mode = kCGPathFillStroke;
1828         }
1829     }
1830
1831     if ( !m_brush.IsNull() )
1832         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1833     if ( !m_pen.IsNull() )
1834         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1835
1836     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1837
1838     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1839     CGContextDrawPath( m_cgContext , mode );
1840 }
1841
1842 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1843 {
1844     if ( m_brush.IsNull() )
1845         return;
1846
1847     if (EnsureIsValid()==false)
1848         return;
1849
1850     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1851     {
1852         CGContextSaveGState( m_cgContext );
1853         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1854         CGContextClip( m_cgContext );
1855         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1856         CGContextRestoreGState( m_cgContext);
1857     }
1858     else
1859     {
1860         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1861         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1862         if ( fillStyle == wxODDEVEN_RULE )
1863             CGContextEOFillPath( m_cgContext );
1864         else
1865             CGContextFillPath( m_cgContext );
1866     }
1867 }
1868
1869 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
1870 {
1871     // we allow either setting or clearing but not replacing
1872     wxASSERT( m_cgContext == NULL || cg == NULL );
1873
1874     if ( m_cgContext )
1875     {
1876         CGContextRestoreGState( m_cgContext );
1877         CGContextRestoreGState( m_cgContext );
1878         if ( m_contextSynthesized )
1879         {
1880             // TODO: in case of performance problems, try issuing this not too
1881             // frequently (half of refresh rate)
1882             CGContextFlush(m_cgContext);
1883 #if wxOSX_USE_CARBON
1884             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
1885 #endif
1886 #if wxOSX_USE_COCOA_OR_IPHONE
1887             wxOSXUnlockFocus(m_view);
1888 #endif
1889         }
1890         else
1891             CGContextRelease(m_cgContext);
1892     }
1893
1894     m_cgContext = cg;
1895
1896     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
1897     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
1898     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
1899     // for this one operation.
1900
1901     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
1902     // can be removed.
1903     if (m_cgContext)
1904     {
1905         CGContextRetain(m_cgContext);
1906         CGContextSaveGState( m_cgContext );
1907         CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
1908         CGContextSaveGState( m_cgContext );
1909         m_contextSynthesized = false;
1910     }
1911 }
1912
1913 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
1914 {
1915     if ( m_cgContext )
1916         CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
1917     else
1918         m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
1919 }
1920
1921 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
1922 {
1923     if ( m_cgContext )
1924         CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
1925     else
1926         m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
1927 }
1928
1929 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
1930 {
1931     if ( m_cgContext )
1932         CGContextRotateCTM( m_cgContext , (CGFloat) angle );
1933     else
1934         m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
1935 }
1936
1937 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1938 {
1939     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
1940     DrawBitmap(bitmap, x, y, w, h);
1941 }
1942
1943 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1944 {
1945     if (EnsureIsValid()==false)
1946         return;
1947
1948 #ifdef __WXMAC__
1949     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
1950     CGImageRef image = refdata->GetBitmap();
1951     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1952     if ( refdata->IsMonochrome() == 1 )
1953     {
1954         // is is a mask, the '1' in the mask tell where to draw the current brush
1955         if (  !m_brush.IsNull() )
1956         {
1957             if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1958             {
1959                 // TODO clip to mask
1960             /*
1961                 CGContextSaveGState( m_cgContext );
1962                 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1963                 CGContextClip( m_cgContext );
1964                 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1965                 CGContextRestoreGState( m_cgContext);
1966             */
1967             }
1968             else
1969             {
1970                 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1971                 wxMacDrawCGImage( m_cgContext , &r , image );
1972             }
1973         }
1974     }
1975     else
1976     {
1977         wxMacDrawCGImage( m_cgContext , &r , image );
1978     }
1979 #endif
1980 }
1981
1982 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1983 {
1984     if (EnsureIsValid()==false)
1985         return;
1986
1987     CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
1988     CGContextSaveGState( m_cgContext );
1989     CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
1990     CGContextScaleCTM( m_cgContext, 1, -1 );
1991 #if wxOSX_USE_COCOA_OR_CARBON
1992     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
1993         NULL , kPlotIconRefNormalFlags , icon.GetHICON() );
1994 #endif
1995     CGContextRestoreGState( m_cgContext );
1996 }
1997
1998 void wxMacCoreGraphicsContext::PushState()
1999 {
2000     if (EnsureIsValid()==false)
2001         return;
2002
2003     CGContextSaveGState( m_cgContext );
2004 }
2005
2006 void wxMacCoreGraphicsContext::PopState()
2007 {
2008     if (EnsureIsValid()==false)
2009         return;
2010
2011     CGContextRestoreGState( m_cgContext );
2012 }
2013
2014 void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDouble y )
2015 {
2016     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2017
2018     if (EnsureIsValid()==false)
2019         return;
2020
2021 #if wxOSX_USE_CORE_TEXT
2022     if ( UMAGetSystemVersion() >= 0x1050 )
2023     {
2024         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2025         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2026         CTFontRef font = fref->GetCTFont();
2027         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2028         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
2029         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
2030          CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
2031         CFTypeRef values[] = { font, col, underlined };
2032         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2033                                                         WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2034         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2035         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2036
2037         y += CTFontGetAscent(font);
2038
2039         CGContextSaveGState(m_cgContext);
2040         CGContextTranslateCTM(m_cgContext, x, y);
2041         CGContextScaleCTM(m_cgContext, 1, -1);
2042         CGContextSetTextPosition(m_cgContext, 0, 0);
2043         CTLineDraw( line, m_cgContext );
2044         CGContextRestoreGState(m_cgContext);
2045         CFRelease( col );
2046         return;
2047     }
2048 #endif
2049 #if wxOSX_USE_ATSU_TEXT
2050     {
2051         DrawText(str, x, y, 0.0);
2052         return;
2053     }
2054 #endif
2055 #if wxOSX_USE_IPHONE
2056     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2057
2058     CGContextSaveGState(m_cgContext);
2059
2060     CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2061     CGContextSetTextDrawingMode (m_cgContext, kCGTextFill);
2062     CGContextSetFillColorWithColor( m_cgContext, col );
2063
2064     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2065     DrawTextInContext( m_cgContext, CGPointMake( x, y ), fref->GetUIFont() , text.AsNSString() );
2066
2067     CGContextRestoreGState(m_cgContext);
2068     CFRelease( col );
2069 #endif
2070 }
2071
2072 void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
2073                                                  wxDouble x, wxDouble y,
2074                                                  wxDouble angle)
2075 {
2076     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2077
2078     if (EnsureIsValid()==false)
2079         return;
2080
2081 #if wxOSX_USE_CORE_TEXT
2082     if ( UMAGetSystemVersion() >= 0x1050 )
2083     {
2084         // default implementation takes care of rotation and calls non rotated DrawText afterwards
2085         wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2086         return;
2087     }
2088 #endif
2089 #if wxOSX_USE_ATSU_TEXT
2090     {
2091         OSStatus status = noErr;
2092         ATSUTextLayout atsuLayout;
2093         wxMacUniCharBuffer unibuf( str );
2094         UniCharCount chars = unibuf.GetChars();
2095
2096         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2097         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2098                                                    &chars , &style , &atsuLayout );
2099
2100         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
2101
2102         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2103         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2104
2105         int iAngle = int( angle * RAD2DEG );
2106         if ( abs(iAngle) > 0 )
2107         {
2108             Fixed atsuAngle = IntToFixed( iAngle );
2109             ATSUAttributeTag atsuTags[] =
2110             {
2111                 kATSULineRotationTag ,
2112             };
2113             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2114             {
2115                 sizeof( Fixed ) ,
2116             };
2117             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2118             {
2119                 &atsuAngle ,
2120             };
2121             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
2122                                              atsuTags, atsuSizes, atsuValues );
2123         }
2124
2125         {
2126             ATSUAttributeTag atsuTags[] =
2127             {
2128                 kATSUCGContextTag ,
2129             };
2130             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2131             {
2132                 sizeof( CGContextRef ) ,
2133             };
2134             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2135             {
2136                 &m_cgContext ,
2137             };
2138             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
2139                                              atsuTags, atsuSizes, atsuValues );
2140         }
2141
2142         ATSUTextMeasurement textBefore, textAfter;
2143         ATSUTextMeasurement ascent, descent;
2144
2145         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2146                                             &textBefore , &textAfter, &ascent , &descent );
2147
2148         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2149
2150         Rect rect;
2151         x += (int)(sin(angle) * FixedToInt(ascent));
2152         y += (int)(cos(angle) * FixedToInt(ascent));
2153
2154         status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2155                                         IntToFixed(x) , IntToFixed(y) , &rect );
2156         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2157
2158         CGContextSaveGState(m_cgContext);
2159         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2160         CGContextScaleCTM(m_cgContext, 1, -1);
2161         status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2162                                 IntToFixed(0) , IntToFixed(0) );
2163
2164         wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2165
2166         CGContextRestoreGState(m_cgContext);
2167
2168         ::ATSUDisposeTextLayout(atsuLayout);
2169
2170         return;
2171     }
2172 #endif
2173 #if wxOSX_USE_IPHONE
2174     // default implementation takes care of rotation and calls non rotated DrawText afterwards
2175     wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2176 #endif
2177 }
2178
2179 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2180                             wxDouble *descent, wxDouble *externalLeading ) const
2181 {
2182     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::GetTextExtent - no valid font set") );
2183
2184     if ( width )
2185         *width = 0;
2186     if ( height )
2187         *height = 0;
2188     if ( descent )
2189         *descent = 0;
2190     if ( externalLeading )
2191         *externalLeading = 0;
2192
2193     if (str.empty())
2194         return;
2195
2196 #if wxOSX_USE_CORE_TEXT
2197     if ( UMAGetSystemVersion() >= 0x1050 )
2198     {
2199         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2200         CTFontRef font = fref->GetCTFont();
2201
2202         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2203         CFStringRef keys[] = { kCTFontAttributeName  };
2204         CFTypeRef values[] = { font };
2205         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2206                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2207         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2208         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2209
2210         CGFloat w, a, d, l;
2211
2212         w = CTLineGetTypographicBounds(line, &a, &d, &l) ;
2213
2214         if ( height )
2215             *height = a+d+l;
2216         if ( descent )
2217             *descent = d;
2218         if ( externalLeading )
2219             *externalLeading = l;
2220         if ( width )
2221             *width = w;
2222         return;
2223     }
2224 #endif
2225 #if wxOSX_USE_ATSU_TEXT
2226     {
2227         OSStatus status = noErr;
2228
2229         ATSUTextLayout atsuLayout;
2230         wxMacUniCharBuffer unibuf( str );
2231         UniCharCount chars = unibuf.GetChars();
2232
2233         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2234         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2235                                                    &chars , &style , &atsuLayout );
2236
2237         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2238
2239         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2240         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2241
2242         ATSUTextMeasurement textBefore, textAfter;
2243         ATSUTextMeasurement textAscent, textDescent;
2244
2245         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2246                                             &textBefore , &textAfter, &textAscent , &textDescent );
2247
2248         if ( height )
2249             *height = FixedToInt(textAscent + textDescent);
2250         if ( descent )
2251             *descent = FixedToInt(textDescent);
2252         if ( externalLeading )
2253             *externalLeading = 0;
2254         if ( width )
2255             *width = FixedToInt(textAfter - textBefore);
2256
2257         ::ATSUDisposeTextLayout(atsuLayout);
2258
2259         return;
2260     }
2261 #endif
2262 #if wxOSX_USE_IPHONE
2263     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2264
2265     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2266     CGSize sz = MeasureTextInContext( fref->GetUIFont() , text.AsNSString() );
2267
2268     if ( height )
2269         *height = sz.height;
2270         /*
2271     if ( descent )
2272         *descent = FixedToInt(textDescent);
2273     if ( externalLeading )
2274         *externalLeading = 0;
2275         */
2276     if ( width )
2277         *width = sz.width;
2278 #endif
2279 }
2280
2281 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2282 {
2283     widths.Empty();
2284     widths.Add(0, text.length());
2285
2286     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2287
2288     if (text.empty())
2289         return;
2290
2291 #if wxOSX_USE_CORE_TEXT
2292     {
2293         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2294         CTFontRef font = fref->GetCTFont();
2295
2296         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2297         CFStringRef keys[] = { kCTFontAttributeName  };
2298         CFTypeRef values[] = { font };
2299         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2300                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2301         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2302         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2303
2304         int chars = text.length();
2305         for ( int pos = 0; pos < (int)chars; pos ++ )
2306         {
2307             widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5;
2308         }
2309
2310         return;
2311     }
2312 #endif
2313 #if wxOSX_USE_ATSU_TEXT
2314     {
2315         OSStatus status = noErr;
2316         ATSUTextLayout atsuLayout;
2317         wxMacUniCharBuffer unibuf( text );
2318         UniCharCount chars = unibuf.GetChars();
2319
2320         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2321         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2322                                           &chars , &style , &atsuLayout );
2323
2324         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2325
2326         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2327         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2328
2329 // new implementation from JS, keep old one just in case
2330 #if 0
2331         for ( int pos = 0; pos < (int)chars; pos ++ )
2332         {
2333             unsigned long actualNumberOfBounds = 0;
2334             ATSTrapezoid glyphBounds;
2335
2336             // We get a single bound, since the text should only require one. If it requires more, there is an issue
2337             OSStatus result;
2338             result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2339                                         kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2340             if (result != noErr || actualNumberOfBounds != 1 )
2341                 return;
2342
2343             widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2344             //unsigned char uch = s[i];
2345         }
2346 #else
2347         ATSLayoutRecord *layoutRecords = NULL;
2348         ItemCount glyphCount = 0;
2349
2350         // Get the glyph extents
2351         OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2352                                                                        0,
2353                                                                        kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2354                                                                        (void **)
2355                                                                        &layoutRecords,
2356                                                                        &glyphCount);
2357         wxASSERT(glyphCount == (text.length()+1));
2358
2359         if ( err == noErr && glyphCount == (text.length()+1))
2360         {
2361             for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2362             {
2363                 widths[pos-1] = FixedToInt( layoutRecords[pos].realPos );
2364             }
2365         }
2366
2367         ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2368                                               kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2369                                               (void **) &layoutRecords);
2370 #endif
2371         ::ATSUDisposeTextLayout(atsuLayout);
2372     }
2373 #endif
2374 #if wxOSX_USE_IPHONE
2375     // TODO core graphics text implementation here
2376 #endif
2377 }
2378
2379 void * wxMacCoreGraphicsContext::GetNativeContext()
2380 {
2381     return m_cgContext;
2382 }
2383
2384 // concatenates this transform with the current transform of this context
2385 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2386 {
2387     if ( m_cgContext )
2388         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2389     else
2390         m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
2391 }
2392
2393 // sets the transform of this context
2394 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2395 {
2396     if ( m_cgContext )
2397     {
2398         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2399         transform = CGAffineTransformInvert( transform ) ;
2400         CGContextConcatCTM( m_cgContext, transform);
2401         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2402     }
2403     else
2404     {
2405         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2406     }
2407 }
2408
2409 // gets the matrix of this context
2410 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2411 {
2412     wxGraphicsMatrix m = CreateMatrix();
2413     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2414         CGContextGetCTM( m_cgContext ));
2415     return m;
2416 }
2417
2418 //
2419 // Renderer
2420 //
2421
2422 //-----------------------------------------------------------------------------
2423 // wxMacCoreGraphicsRenderer declaration
2424 //-----------------------------------------------------------------------------
2425
2426 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2427 {
2428 public :
2429     wxMacCoreGraphicsRenderer() {}
2430
2431     virtual ~wxMacCoreGraphicsRenderer() {}
2432
2433     // Context
2434
2435     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2436     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2437 #if wxUSE_PRINTING_ARCHITECTURE
2438     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2439 #endif
2440
2441     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2442
2443     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2444
2445     virtual wxGraphicsContext * CreateContext( wxWindow* window );
2446
2447     virtual wxGraphicsContext * CreateMeasuringContext();
2448
2449     // Path
2450
2451     virtual wxGraphicsPath CreatePath();
2452
2453     // Matrix
2454
2455     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2456         wxDouble tx=0.0, wxDouble ty=0.0);
2457
2458
2459     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2460
2461     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2462
2463     // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2464     virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2465         const wxColour&c1, const wxColour&c2) ;
2466
2467     // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2468     // with radius r and color cColor
2469     virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2470         const wxColour &oColor, const wxColour &cColor) ;
2471
2472    // sets the font
2473     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2474
2475     // create a native bitmap representation
2476     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2477
2478     // create a native bitmap representation
2479     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
2480 private :
2481     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2482 } ;
2483
2484 //-----------------------------------------------------------------------------
2485 // wxMacCoreGraphicsRenderer implementation
2486 //-----------------------------------------------------------------------------
2487
2488 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2489
2490 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2491
2492 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2493 {
2494     return &gs_MacCoreGraphicsRenderer;
2495 }
2496
2497 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2498 {
2499     const wxDCImpl* impl = dc.GetImpl();
2500     wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2501     if (win_impl)
2502     {
2503         int w, h;
2504         win_impl->GetSize( &w, &h );
2505         CGContextRef cgctx = 0;
2506
2507         wxASSERT_MSG(win_impl->GetWindow(), "Invalid wxWindow in wxMacCoreGraphicsRenderer::CreateContext");
2508         if (win_impl->GetWindow())
2509             cgctx =  (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2510
2511         if (cgctx != 0)
2512             return new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2513     }
2514     return NULL;
2515 }
2516
2517 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2518 {
2519 #ifdef __WXMAC__
2520     const wxDCImpl* impl = dc.GetImpl();
2521     wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2522     if (mem_impl)
2523     {
2524         int w, h;
2525         mem_impl->GetSize( &w, &h );
2526         return new wxMacCoreGraphicsContext( this,
2527             (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2528     }
2529 #endif
2530     return NULL;
2531 }
2532
2533 #if wxUSE_PRINTING_ARCHITECTURE
2534 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2535 {
2536 #ifdef __WXMAC__
2537     const wxDCImpl* impl = dc.GetImpl();
2538     wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2539     if (print_impl)
2540     {
2541         int w, h;
2542         print_impl->GetSize( &w, &h );
2543         return new wxMacCoreGraphicsContext( this,
2544             (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2545     }
2546 #endif
2547     return NULL;
2548 }
2549 #endif
2550
2551 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2552 {
2553     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2554 }
2555
2556 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2557 {
2558 #if wxOSX_USE_CARBON
2559     return new wxMacCoreGraphicsContext(this,(WindowRef)window);
2560 #else
2561     return NULL;
2562 #endif
2563 }
2564
2565 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
2566 {
2567     return new wxMacCoreGraphicsContext(this, window );
2568 }
2569
2570 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
2571 {
2572     return new wxMacCoreGraphicsContext(this);
2573 }
2574
2575 // Path
2576
2577 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
2578 {
2579     wxGraphicsPath m;
2580     m.SetRefData( new wxMacCoreGraphicsPathData(this));
2581     return m;
2582 }
2583
2584
2585 // Matrix
2586
2587 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
2588     wxDouble tx, wxDouble ty)
2589 {
2590     wxGraphicsMatrix m;
2591     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
2592     data->Set( a,b,c,d,tx,ty ) ;
2593     m.SetRefData(data);
2594     return m;
2595 }
2596
2597 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
2598 {
2599     if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
2600         return wxNullGraphicsPen;
2601     else
2602     {
2603         wxGraphicsPen p;
2604         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
2605         return p;
2606     }
2607 }
2608
2609 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
2610 {
2611     if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
2612         return wxNullGraphicsBrush;
2613     else
2614     {
2615         wxGraphicsBrush p;
2616         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
2617         return p;
2618     }
2619 }
2620
2621 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
2622 {
2623     if ( bmp.Ok() )
2624     {
2625         wxGraphicsBitmap p;
2626 #ifdef __WXMAC__
2627         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
2628 #endif
2629         return p;
2630     }
2631     else
2632         return wxNullGraphicsBitmap;
2633 }
2634
2635 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
2636 {
2637     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2638     CGImageRef img = refdata->GetBitmap();
2639     if ( img )
2640     {
2641         wxGraphicsBitmap p;
2642         CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h ));
2643         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg, refdata->IsMonochrome() ) );
2644         return p;
2645     }
2646     else
2647         return wxNullGraphicsBitmap;
2648 }
2649
2650 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2651 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2652     const wxColour&c1, const wxColour&c2)
2653 {
2654     wxGraphicsBrush p;
2655     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2656     d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
2657     p.SetRefData(d);
2658     return p;
2659 }
2660
2661 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2662 // with radius r and color cColor
2663 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2664     const wxColour &oColor, const wxColour &cColor)
2665 {
2666     wxGraphicsBrush p;
2667     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2668     d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
2669     p.SetRefData(d);
2670     return p;
2671 }
2672
2673 // sets the font
2674 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
2675 {
2676     if ( font.Ok() )
2677     {
2678         wxGraphicsFont p;
2679         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
2680         return p;
2681     }
2682     else
2683         return wxNullGraphicsFont;
2684 }
2685
2686 //
2687 // CoreGraphics Helper Methods
2688 //
2689
2690 // Data Providers and Consumers
2691
2692 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
2693 {
2694     CFMutableDataRef data = (CFMutableDataRef) info;
2695     if ( data )
2696     {
2697         CFDataAppendBytes( data, (const UInt8*) bytes, count );
2698     }
2699     return count;
2700 }
2701
2702 void wxMacReleaseCFDataProviderCallback(void *info,
2703                                       const void *WXUNUSED(data),
2704                                       size_t WXUNUSED(count))
2705 {
2706     if ( info )
2707         CFRelease( (CFDataRef) info );
2708 }
2709
2710 void wxMacReleaseCFDataConsumerCallback( void *info )
2711 {
2712     if ( info )
2713         CFRelease( (CFDataRef) info );
2714 }
2715
2716 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
2717 {
2718     if ( data == NULL )
2719         return NULL;
2720
2721     return CGDataProviderCreateWithCFData( data );
2722 }
2723
2724 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
2725 {
2726     if ( data == NULL )
2727         return NULL;
2728
2729     return CGDataConsumerCreateWithCFData( data );
2730 }
2731
2732 void
2733 wxMacReleaseMemoryBufferProviderCallback(void *info,
2734                                          const void * WXUNUSED_UNLESS_DEBUG(data),
2735                                          size_t WXUNUSED(size))
2736 {
2737     wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
2738
2739     wxASSERT( data == membuf->GetData() ) ;
2740
2741     delete membuf ;
2742 }
2743
2744 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
2745 {
2746     wxMemoryBuffer* b = new wxMemoryBuffer( buf );
2747     if ( b->GetDataLen() == 0 )
2748         return NULL;
2749
2750     return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
2751                                                  wxMacReleaseMemoryBufferProviderCallback );
2752 }