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