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