src/mac/carbon/graphics.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/dccg.cpp
   3 // Purpose:     wxDC class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_GRAPHICS_CONTEXT && wxMAC_USE_CORE_GRAPHICS
  15
  16 #include "wx/graphics.h"
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/dcclient.h"
  20     #include "wx/log.h"
  21     #include "wx/region.h"
  22 #endif
  23
  24 #include "wx/mac/uma.h"
  25
  26 #ifdef __MSL__
  27     #if __MSL__ >= 0x6000
  28         #include "math.h"
  29         // in case our functions were defined outside std, we make it known all the same
  30         namespace std { }
  31         using namespace std;
  32     #endif
  33 #endif
  34
  35 #include "wx/mac/private.h"
  36
  37 #if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4
  38 typedef float CGFloat;
  39 #endif
  40
  41 //-----------------------------------------------------------------------------
  42 // constants
  43 //-----------------------------------------------------------------------------
  44
  45 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
  46 #ifndef M_PI
  47 const double M_PI = 3.14159265358979;
  48 #endif
  49 #endif
  50
  51 static const double RAD2DEG = 180.0 / M_PI;
  52
  53 //
  54 // Pen, Brushes and Fonts
  55 //
  56
  57 #pragma mark -
  58 #pragma mark wxMacCoreGraphicsPattern, ImagePattern, HatchPattern classes
  59
  60 // CGPattern wrapper class: always allocate on heap, never call destructor
  61
  62 class wxMacCoreGraphicsPattern
  63 {
  64 public :
  65     wxMacCoreGraphicsPattern() {}
  66
  67     // is guaranteed to be called only with a non-Null CGContextRef
  68     virtual void Render( CGContextRef ctxRef ) = 0;
  69
  70     operator CGPatternRef() const { return m_patternRef; }
  71
  72 protected :
  73     virtual ~wxMacCoreGraphicsPattern()
  74     {
  75         // as this is called only when the m_patternRef is been released;
  76         // don't release it again
  77     }
  78
  79     static void _Render( void *info, CGContextRef ctxRef )
  80     {
  81         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
  82         if ( self && ctxRef )
  83             self->Render( ctxRef );
  84     }
  85
  86     static void _Dispose( void *info )
  87     {
  88         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
  89         delete self;
  90     }
  91
  92     CGPatternRef m_patternRef;
  93
  94     static const CGPatternCallbacks ms_Callbacks;
  95 };
  96
  97 const CGPatternCallbacks wxMacCoreGraphicsPattern::ms_Callbacks = { 0, &wxMacCoreGraphicsPattern::_Render, &wxMacCoreGraphicsPattern::_Dispose };
  98
  99 class ImagePattern : public wxMacCoreGraphicsPattern
 100 {
 101 public :
 102     ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
 103     {
 104         wxASSERT( bmp && bmp->Ok() );
 105
 106         Init( (CGImageRef) bmp->CGImageCreate() , transform );
 107     }
 108
 109     // ImagePattern takes ownership of CGImageRef passed in
 110     ImagePattern( CGImageRef image , const CGAffineTransform& transform )
 111     {
 112         if ( image )
 113             CFRetain( image );
 114
 115         Init( image , transform );
 116     }
 117
 118     virtual void Render( CGContextRef ctxRef )
 119     {
 120         if (m_image != NULL)
 121             HIViewDrawCGImage( ctxRef, &m_imageBounds, m_image );
 122     }
 123
 124 protected :
 125     void Init( CGImageRef image, const CGAffineTransform& transform )
 126     {
 127         m_image = image;
 128         if ( m_image )
 129         {
 130             m_imageBounds = CGRectMake( 0.0, 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) );
 131             m_patternRef = CGPatternCreate(
 132                 this , m_imageBounds, transform ,
 133                 m_imageBounds.size.width, m_imageBounds.size.height,
 134                 kCGPatternTilingNoDistortion, true , &wxMacCoreGraphicsPattern::ms_Callbacks );
 135         }
 136     }
 137
 138     virtual ~ImagePattern()
 139     {
 140         if ( m_image )
 141             CGImageRelease( m_image );
 142     }
 143
 144     CGImageRef m_image;
 145     CGRect m_imageBounds;
 146 };
 147
 148 class HatchPattern : public wxMacCoreGraphicsPattern
 149 {
 150 public :
 151     HatchPattern( int hatchstyle, const CGAffineTransform& transform )
 152     {
 153         m_hatch = hatchstyle;
 154         m_imageBounds = CGRectMake( 0.0, 0.0, 8.0 , 8.0 );
 155         m_patternRef = CGPatternCreate(
 156             this , m_imageBounds, transform ,
 157             m_imageBounds.size.width, m_imageBounds.size.height,
 158             kCGPatternTilingNoDistortion, false , &wxMacCoreGraphicsPattern::ms_Callbacks );
 159     }
 160
 161     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 162     {
 163 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
 164         if ( UMAGetSystemVersion() >= 0x1040 )
 165         {
 166             CGContextStrokeLineSegments( ctxRef , pts , count );
 167         }
 168         else
 169 #endif
 170         {
 171             CGContextBeginPath( ctxRef );
 172             for (size_t i = 0; i < count; i += 2)
 173             {
 174                 CGContextMoveToPoint(ctxRef, pts[i].x, pts[i].y);
 175                 CGContextAddLineToPoint(ctxRef, pts[i+1].x, pts[i+1].y);
 176             }
 177             CGContextStrokePath(ctxRef);
 178         }
 179     }
 180
 181     virtual void Render( CGContextRef ctxRef )
 182     {
 183         switch ( m_hatch )
 184         {
 185             case wxBDIAGONAL_HATCH :
 186                 {
 187                     CGPoint pts[] =
 188                     {
 189                     { 8.0 , 0.0 } , { 0.0 , 8.0 }
 190                     };
 191                     StrokeLineSegments( ctxRef , pts , 2 );
 192                 }
 193                 break;
 194
 195             case wxCROSSDIAG_HATCH :
 196                 {
 197                     CGPoint pts[] =
 198                     {
 199                         { 0.0 , 0.0 } , { 8.0 , 8.0 } ,
 200                         { 8.0 , 0.0 } , { 0.0 , 8.0 }
 201                     };
 202                     StrokeLineSegments( ctxRef , pts , 4 );
 203                 }
 204                 break;
 205
 206             case wxFDIAGONAL_HATCH :
 207                 {
 208                     CGPoint pts[] =
 209                     {
 210                     { 0.0 , 0.0 } , { 8.0 , 8.0 }
 211                     };
 212                     StrokeLineSegments( ctxRef , pts , 2 );
 213                 }
 214                 break;
 215
 216             case wxCROSS_HATCH :
 217                 {
 218                     CGPoint pts[] =
 219                     {
 220                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 221                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 222                     };
 223                     StrokeLineSegments( ctxRef , pts , 4 );
 224                 }
 225                 break;
 226
 227             case wxHORIZONTAL_HATCH :
 228                 {
 229                     CGPoint pts[] =
 230                     {
 231                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 232                     };
 233                     StrokeLineSegments( ctxRef , pts , 2 );
 234                 }
 235                 break;
 236
 237             case wxVERTICAL_HATCH :
 238                 {
 239                     CGPoint pts[] =
 240                     {
 241                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 242                     };
 243                     StrokeLineSegments( ctxRef , pts , 2 );
 244                 }
 245                 break;
 246
 247             default:
 248                 break;
 249         }
 250     }
 251
 252 protected :
 253     virtual ~HatchPattern() {}
 254
 255     CGRect      m_imageBounds;
 256     int         m_hatch;
 257 };
 258
 259 class wxMacCoreGraphicsPenData : public wxGraphicsObjectRefData
 260 {
 261 public:
 262     wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
 263     ~wxMacCoreGraphicsPenData();
 264
 265     void Init();
 266     virtual void Apply( wxGraphicsContext* context );
 267     virtual wxDouble GetWidth() { return m_width; }
 268
 269 protected :
 270     CGLineCap m_cap;
 271     wxMacCFRefHolder<CGColorRef> m_color;
 272     wxMacCFRefHolder<CGColorSpaceRef> m_colorSpace;
 273
 274     CGLineJoin m_join;
 275     CGFloat m_width;
 276
 277     int m_count;
 278     const CGFloat *m_lengths;
 279     CGFloat *m_userLengths;
 280
 281
 282     bool m_isPattern;
 283     wxMacCFRefHolder<CGPatternRef> m_pattern;
 284     CGFloat* m_patternColorComponents;
 285 };
 286
 287 wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) :
 288     wxGraphicsObjectRefData( renderer )
 289 {
 290     Init();
 291
 292     float components[4] = { pen.GetColour().Red() / 255.0 , pen.GetColour().Green() / 255.0 ,
 293             pen.GetColour().Blue() / 255.0 , pen.GetColour().Alpha() / 255.0 } ;
 294     m_color.Set( CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ) ;
 295
 296     // TODO: * m_dc->m_scaleX
 297     m_width = pen.GetWidth();
 298     if (m_width <= 0.0)
 299         m_width = 0.1;
 300
 301     switch ( pen.GetCap() )
 302     {
 303         case wxCAP_ROUND :
 304             m_cap = kCGLineCapRound;
 305             break;
 306
 307         case wxCAP_PROJECTING :
 308             m_cap = kCGLineCapSquare;
 309             break;
 310
 311         case wxCAP_BUTT :
 312             m_cap = kCGLineCapButt;
 313             break;
 314
 315         default :
 316             m_cap = kCGLineCapButt;
 317             break;
 318     }
 319
 320     switch ( pen.GetJoin() )
 321     {
 322         case wxJOIN_BEVEL :
 323             m_join = kCGLineJoinBevel;
 324             break;
 325
 326         case wxJOIN_MITER :
 327             m_join = kCGLineJoinMiter;
 328             break;
 329
 330         case wxJOIN_ROUND :
 331             m_join = kCGLineJoinRound;
 332             break;
 333
 334         default :
 335             m_join = kCGLineJoinMiter;
 336             break;
 337     }
 338
 339     const CGFloat dashUnit = m_width < 1.0 ? 1.0 : m_width;
 340
 341     const CGFloat dotted[] = { dashUnit , dashUnit + 2.0 };
 342     static const CGFloat short_dashed[] = { 9.0 , 6.0 };
 343     static const CGFloat dashed[] = { 19.0 , 9.0 };
 344     static const CGFloat dotted_dashed[] = { 9.0 , 6.0 , 3.0 , 3.0 };
 345
 346     switch ( pen.GetStyle() )
 347     {
 348         case wxSOLID :
 349             break;
 350
 351         case wxDOT :
 352             m_count = WXSIZEOF(dotted);
 353             m_userLengths = new CGFloat[ m_count ] ;
 354             memcpy( m_userLengths, dotted, sizeof(dotted) );
 355             m_lengths = m_userLengths;
 356             break;
 357
 358         case wxLONG_DASH :
 359             m_count = WXSIZEOF(dashed);
 360             m_lengths = dashed;
 361             break;
 362
 363         case wxSHORT_DASH :
 364             m_count = WXSIZEOF(short_dashed);
 365             m_lengths = short_dashed;
 366             break;
 367
 368         case wxDOT_DASH :
 369             m_count = WXSIZEOF(dotted_dashed);
 370             m_lengths = dotted_dashed;
 371             break;
 372
 373         case wxUSER_DASH :
 374             wxDash *dashes;
 375             m_count = pen.GetDashes( &dashes );
 376             if ((dashes != NULL) && (m_count > 0))
 377             {
 378                 m_userLengths = new CGFloat[m_count];
 379                 for ( int i = 0; i < m_count; ++i )
 380                 {
 381                     m_userLengths[i] = dashes[i] * dashUnit;
 382
 383                     if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
 384                         m_userLengths[i] = dashUnit + 2.0;
 385                     else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
 386                         m_userLengths[i] = dashUnit;
 387                 }
 388             }
 389             m_lengths = m_userLengths;
 390             break;
 391
 392         case wxSTIPPLE :
 393             {
 394                 wxBitmap* bmp = pen.GetStipple();
 395                 if ( bmp && bmp->Ok() )
 396                 {
 397                     m_colorSpace.Set( CGColorSpaceCreatePattern( NULL ) );
 398                     m_pattern.Set( *( new ImagePattern( bmp , CGAffineTransformMakeTranslation( 0,0 ) ) ) );
 399                     m_patternColorComponents = new CGFloat[1] ;
 400                     m_patternColorComponents[0] = 1.0;
 401                     m_isPattern = true;
 402                 }
 403             }
 404             break;
 405
 406         default :
 407             {
 408                 m_isPattern = true;
 409                 m_colorSpace.Set( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 410                 m_pattern.Set( *( new HatchPattern( pen.GetStyle() , CGAffineTransformMakeTranslation( 0,0 ) ) ) );
 411                 m_patternColorComponents = new CGFloat[4] ;
 412                 m_patternColorComponents[0] = pen.GetColour().Red() / 255.0;
 413                 m_patternColorComponents[1] = pen.GetColour().Green() / 255.0;
 414                 m_patternColorComponents[2] = pen.GetColour().Blue() / 255.0;
 415                 m_patternColorComponents[3] =  pen.GetColour().Alpha() / 255.0;
 416             }
 417             break;
 418     }
 419     if ((m_lengths != NULL) && (m_count > 0))
 420     {
 421         // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 422         m_cap = kCGLineCapButt;
 423     }
 424 }
 425
 426 wxMacCoreGraphicsPenData::~wxMacCoreGraphicsPenData()
 427 {
 428     delete[] m_userLengths;
 429     delete[] m_patternColorComponents;
 430 }
 431
 432 void wxMacCoreGraphicsPenData::Init()
 433 {
 434     m_lengths = NULL;
 435     m_userLengths = NULL;
 436     m_width = 0;
 437     m_count = 0;
 438     m_patternColorComponents = NULL;
 439     m_isPattern = false;
 440 }
 441
 442 void wxMacCoreGraphicsPenData::Apply( wxGraphicsContext* context )
 443 {
 444     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 445     CGContextSetLineWidth( cg , m_width );
 446     CGContextSetLineJoin( cg , m_join );
 447
 448     CGContextSetLineDash( cg , 0 , m_lengths , m_count );
 449     CGContextSetLineCap( cg , m_cap );
 450
 451     if ( m_isPattern )
 452     {
 453         CGContextSetStrokeColorSpace( cg , m_colorSpace );
 454         CGContextSetStrokePattern( cg, m_pattern , m_patternColorComponents );
 455     }
 456     else
 457     {
 458         CGContextSetStrokeColorWithColor( cg , m_color );
 459     }
 460 }
 461
 462 //
 463 // Brush
 464 //
 465
 466 class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
 467 {
 468 public:
 469     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
 470     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
 471     ~wxMacCoreGraphicsBrushData ();
 472
 473     virtual void Apply( wxGraphicsContext* context );
 474     void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 475         const wxColour&c1, const wxColour&c2 );
 476     void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 477     const wxColour &oColor, const wxColour &cColor );
 478
 479     virtual bool IsShading() { return m_isShading; }
 480     CGShadingRef GetShading() { return m_shading; }
 481 protected:
 482     CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 );
 483     static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
 484     virtual void Init();
 485
 486     wxMacCFRefHolder<CGColorRef> m_color;
 487     wxMacCFRefHolder<CGColorSpaceRef> m_colorSpace;
 488
 489     bool m_isPattern;
 490     wxMacCFRefHolder<CGPatternRef> m_pattern;
 491     CGFloat* m_patternColorComponents;
 492
 493     bool m_isShading;
 494     CGFunctionRef m_gradientFunction;
 495     CGShadingRef m_shading;
 496     CGFloat *m_gradientComponents;
 497 };
 498
 499 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
 500 {
 501     Init();
 502 }
 503
 504 void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 505         const wxColour&c1, const wxColour&c2 )
 506 {
 507     m_gradientFunction = CreateGradientFunction( c1, c2 );
 508     m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake(x1,y1), CGPointMake(x2,y2), m_gradientFunction, true, true ) ;
 509     m_isShading = true ;
 510 }
 511
 512 void wxMacCoreGraphicsBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 513     const wxColour &oColor, const wxColour &cColor )
 514 {
 515     m_gradientFunction = CreateGradientFunction( oColor, cColor );
 516     m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake(xo,yo), 0, CGPointMake(xc,yc), radius, m_gradientFunction, true, true ) ;
 517     m_isShading = true ;
 518 }
 519
 520 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer )
 521 {
 522     Init();
 523
 524     if ( brush.GetStyle() == wxSOLID )
 525     {
 526         float components[4] = { brush.GetColour().Red() / 255.0 , brush.GetColour().Green() / 255.0 ,
 527                 brush.GetColour().Blue() / 255.0 , brush.GetColour().Alpha() / 255.0 } ;
 528         m_color.Set( CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ) ;
 529     }
 530     else if ( brush.IsHatch() )
 531     {
 532         m_isPattern = true;
 533         m_colorSpace.Set( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 534         m_pattern.Set( *( new HatchPattern( brush.GetStyle() , CGAffineTransformMakeTranslation( 0,0 ) ) ) );
 535
 536         m_patternColorComponents = new CGFloat[4] ;
 537         m_patternColorComponents[0] = brush.GetColour().Red() / 255.0;
 538         m_patternColorComponents[1] = brush.GetColour().Green() / 255.0;
 539         m_patternColorComponents[2] = brush.GetColour().Blue() / 255.0;
 540         m_patternColorComponents[3] = brush.GetColour().Alpha() / 255.0;
 541     }
 542     else
 543     {
 544         // now brush is a bitmap
 545         wxBitmap* bmp = brush.GetStipple();
 546         if ( bmp && bmp->Ok() )
 547         {
 548             m_isPattern = true;
 549             m_patternColorComponents = new CGFloat[1] ;
 550             m_patternColorComponents[0] = 1.0;
 551             m_colorSpace.Set( CGColorSpaceCreatePattern( NULL ) );
 552             m_pattern.Set( *( new ImagePattern( bmp , CGAffineTransformMakeTranslation( 0,0 ) ) ) );
 553         }
 554     }
 555 }
 556
 557 wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
 558 {
 559     if ( m_shading )
 560         CGShadingRelease(m_shading);
 561
 562     if( m_gradientFunction )
 563         CGFunctionRelease(m_gradientFunction);
 564
 565     delete[] m_gradientComponents;
 566     delete[] m_patternColorComponents;
 567 }
 568
 569 void wxMacCoreGraphicsBrushData::Init()
 570 {
 571     m_patternColorComponents = NULL;
 572     m_gradientFunction = NULL;
 573     m_shading = NULL;
 574     m_isPattern = false;
 575     m_gradientComponents = NULL;
 576     m_isShading = false;
 577 }
 578
 579 void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
 580 {
 581     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 582
 583     if ( m_isShading )
 584     {
 585     }
 586     else
 587     {
 588         if ( m_isPattern )
 589         {
 590             CGContextSetFillColorSpace( cg , m_colorSpace );
 591             CGContextSetFillPattern( cg, m_pattern , m_patternColorComponents );
 592         }
 593         else
 594         {
 595             CGContextSetFillColorWithColor( cg, m_color );
 596         }
 597     }
 598 }
 599
 600 void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
 601 {
 602     CGFloat* colors = (CGFloat*) info ;
 603     CGFloat f = *in;
 604     for( int i = 0 ; i < 4 ; ++i )
 605     {
 606         out[i] = colors[i] + ( colors[4+i] - colors[i] ) * f;
 607     }
 608 }
 609
 610 CGFunctionRef wxMacCoreGraphicsBrushData::CreateGradientFunction( const wxColour& c1, const wxColour& c2 )
 611 {
 612     static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL };
 613     static const CGFloat input_value_range [2] = { 0, 1 };
 614     static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 };
 615     m_gradientComponents = new CGFloat[8] ;
 616     m_gradientComponents[0] = c1.Red() / 255.0;
 617     m_gradientComponents[1] = c1.Green() / 255.0;
 618     m_gradientComponents[2] = c1.Blue() / 255.0;
 619     m_gradientComponents[3] = c1.Alpha() / 255.0;
 620     m_gradientComponents[4] = c2.Red() / 255.0;
 621     m_gradientComponents[5] = c2.Green() / 255.0;
 622     m_gradientComponents[6] = c2.Blue() / 255.0;
 623     m_gradientComponents[7] = c2.Alpha() / 255.0;
 624
 625     return CGFunctionCreate ( m_gradientComponents,  1,
 626                             input_value_range,
 627                             4,
 628                             output_value_ranges,
 629                             &callbacks);
 630 }
 631
 632 //
 633 // Font
 634 //
 635
 636 class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
 637 {
 638 public:
 639     wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
 640     ~wxMacCoreGraphicsFontData();
 641
 642     virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
 643 private :
 644     ATSUStyle m_macATSUIStyle;
 645 };
 646
 647 wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
 648 {
 649     m_macATSUIStyle = NULL;
 650
 651     OSStatus status;
 652
 653     status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
 654
 655     wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
 656
 657     // we need the scale here ...
 658
 659     Fixed atsuSize = IntToFixed( int( 1 * font.MacGetFontSize()) );
 660     RGBColor atsuColor = MAC_WXCOLORREF( col.GetPixel() );
 661     ATSUAttributeTag atsuTags[] =
 662     {
 663             kATSUSizeTag ,
 664             kATSUColorTag ,
 665     };
 666     ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 667     {
 668             sizeof( Fixed ) ,
 669             sizeof( RGBColor ) ,
 670     };
 671     ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 672     {
 673             &atsuSize ,
 674             &atsuColor ,
 675     };
 676
 677     status = ::ATSUSetAttributes(
 678         m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
 679         atsuTags, atsuSizes, atsuValues);
 680
 681     wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
 682 }
 683
 684 wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
 685 {
 686     if ( m_macATSUIStyle )
 687     {
 688         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 689         m_macATSUIStyle = NULL;
 690     }
 691 }
 692
 693 //
 694 // Graphics Matrix
 695 //
 696
 697 //-----------------------------------------------------------------------------
 698 // wxMacCoreGraphicsMatrix declaration
 699 //-----------------------------------------------------------------------------
 700
 701 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
 702 {
 703 public :
 704     wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
 705
 706     virtual ~wxMacCoreGraphicsMatrixData() ;
 707
 708     virtual wxGraphicsObjectRefData *Clone() const ;
 709
 710     // concatenates the matrix
 711     virtual void Concat( const wxGraphicsMatrixData *t );
 712
 713     // sets the matrix to the respective values
 714     virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
 715         wxDouble tx=0.0, wxDouble ty=0.0);
 716
 717     // makes this the inverse matrix
 718     virtual void Invert();
 719
 720     // returns true if the elements of the transformation matrix are equal ?
 721     virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
 722
 723     // return true if this is the identity matrix
 724     virtual bool IsIdentity() const;
 725
 726     //
 727     // transformation
 728     //
 729
 730     // add the translation to this matrix
 731     virtual void Translate( wxDouble dx , wxDouble dy );
 732
 733     // add the scale to this matrix
 734     virtual void Scale( wxDouble xScale , wxDouble yScale );
 735
 736     // add the rotation to this matrix (radians)
 737     virtual void Rotate( wxDouble angle );
 738
 739     //
 740     // apply the transforms
 741     //
 742
 743     // applies that matrix to the point
 744     virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
 745
 746     // applies the matrix except for translations
 747     virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
 748
 749     // returns the native representation
 750     virtual void * GetNativeMatrix() const;
 751
 752 private :
 753     CGAffineTransform m_matrix;
 754 } ;
 755
 756 //-----------------------------------------------------------------------------
 757 // wxMacCoreGraphicsMatrix implementation
 758 //-----------------------------------------------------------------------------
 759
 760 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
 761 {
 762 }
 763
 764 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
 765 {
 766 }
 767
 768 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
 769 {
 770     wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
 771     m->m_matrix = m_matrix ;
 772     return m;
 773 }
 774
 775 // concatenates the matrix
 776 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
 777 {
 778     m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
 779 }
 780
 781 // sets the matrix to the respective values
 782 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
 783     wxDouble tx, wxDouble ty)
 784 {
 785     m_matrix = CGAffineTransformMake(a,b,c,d,tx,ty);
 786 }
 787
 788 // makes this the inverse matrix
 789 void wxMacCoreGraphicsMatrixData::Invert()
 790 {
 791     m_matrix = CGAffineTransformInvert( m_matrix );
 792 }
 793
 794 // returns true if the elements of the transformation matrix are equal ?
 795 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
 796 {
 797     const CGAffineTransform* tm = (CGAffineTransform*) t->GetNativeMatrix();
 798     return (
 799         m_matrix.a == tm->a &&
 800         m_matrix.b == tm->b &&
 801         m_matrix.c == tm->c &&
 802         m_matrix.d == tm->d &&
 803         m_matrix.tx == tm->tx &&
 804         m_matrix.ty == tm->ty ) ;
 805
 806     return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
 807 }
 808
 809 // return true if this is the identity matrix
 810 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
 811 {
 812     return ( m_matrix.a == 1 && m_matrix.d == 1 &&
 813         m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
 814 }
 815
 816 //
 817 // transformation
 818 //
 819
 820 // add the translation to this matrix
 821 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
 822 {
 823     m_matrix = CGAffineTransformTranslate( m_matrix, dx, dy);
 824 }
 825
 826 // add the scale to this matrix
 827 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
 828 {
 829     m_matrix = CGAffineTransformScale( m_matrix, xScale, yScale);
 830 }
 831
 832 // add the rotation to this matrix (radians)
 833 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
 834 {
 835     m_matrix = CGAffineTransformRotate( m_matrix, angle);
 836 }
 837
 838 //
 839 // apply the transforms
 840 //
 841
 842 // applies that matrix to the point
 843 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
 844 {
 845     CGPoint pt = CGPointApplyAffineTransform( CGPointMake(*x,*y), m_matrix);
 846
 847     *x = pt.x;
 848     *y = pt.y;
 849 }
 850
 851 // applies the matrix except for translations
 852 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
 853 {
 854     CGSize sz = CGSizeApplyAffineTransform( CGSizeMake(*dx,*dy) , m_matrix );
 855     *dx = sz.width;
 856     *dy = sz.height;
 857 }
 858
 859 // returns the native representation
 860 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
 861 {
 862     return (void*) &m_matrix;
 863 }
 864
 865 //
 866 // Graphics Path
 867 //
 868
 869 //-----------------------------------------------------------------------------
 870 // wxMacCoreGraphicsPath declaration
 871 //-----------------------------------------------------------------------------
 872
 873 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
 874 {
 875 public :
 876     wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
 877
 878     ~wxMacCoreGraphicsPathData();
 879
 880     virtual wxGraphicsObjectRefData *Clone() const;
 881
 882     // begins a new subpath at (x,y)
 883     virtual void MoveToPoint( wxDouble x, wxDouble y );
 884
 885     // adds a straight line from the current point to (x,y)
 886     virtual void AddLineToPoint( wxDouble x, wxDouble y );
 887
 888     // adds a cubic Bezier curve from the current point, using two control points and an end point
 889     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
 890
 891     // closes the current sub-path
 892     virtual void CloseSubpath();
 893
 894     // gets the last point of the current path, (0,0) if not yet set
 895     virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
 896
 897     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
 898     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
 899
 900     //
 901     // These are convenience functions which - if not available natively will be assembled
 902     // using the primitives from above
 903     //
 904
 905     // adds a quadratic Bezier curve from the current point, using a control point and an end point
 906     virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
 907
 908     // appends a rectangle as a new closed subpath
 909     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
 910
 911     // appends an ellipsis as a new closed subpath fitting the passed rectangle
 912     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
 913
 914     // 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)
 915     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
 916
 917     // adds another path
 918     virtual void AddPath( const wxGraphicsPathData* path );
 919
 920     // returns the native path
 921     virtual void * GetNativePath() const { return m_path; }
 922
 923     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
 924     virtual void UnGetNativePath(void *p) const {}
 925
 926     // transforms each point of this path by the matrix
 927     virtual void Transform( const wxGraphicsMatrixData* matrix );
 928
 929     // gets the bounding box enclosing all points (possibly including control points)
 930     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
 931
 932     virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxODDEVEN_RULE) const;
 933 private :
 934     CGMutablePathRef m_path;
 935 };
 936
 937 //-----------------------------------------------------------------------------
 938 // wxMacCoreGraphicsPath implementation
 939 //-----------------------------------------------------------------------------
 940
 941 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
 942 {
 943     if ( path )
 944         m_path = path;
 945     else
 946         m_path = CGPathCreateMutable();
 947 }
 948
 949 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
 950 {
 951     CGPathRelease( m_path );
 952 }
 953
 954 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
 955 {
 956     wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
 957     return clone ;
 958 }
 959
 960
 961 // opens (starts) a new subpath
 962 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
 963 {
 964     CGPathMoveToPoint( m_path , NULL , x1 , y1 );
 965 }
 966
 967 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
 968 {
 969     CGPathAddLineToPoint( m_path , NULL , x1 , y1 );
 970 }
 971
 972 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
 973 {
 974     CGPathAddCurveToPoint( m_path , NULL , cx1 , cy1 , cx2, cy2, x , y );
 975 }
 976
 977 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
 978 {
 979     CGPathAddQuadCurveToPoint( m_path , NULL , cx1 , cy1 , x , y );
 980 }
 981
 982 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
 983 {
 984     CGRect cgRect = { { x , y } , { w , h } };
 985     CGPathAddRect( m_path , NULL , cgRect );
 986 }
 987
 988 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
 989 {
 990     CGPathAddArc( m_path , NULL , x , y , r , 0.0 , 2 * M_PI , true );
 991 }
 992
 993 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
 994 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
 995 {
 996     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
 997     CGPathAddArc( m_path, NULL , x, y, r, startAngle, endAngle, !clockwise);
 998 }
 999
1000 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1001 {
1002     CGPathAddArcToPoint( m_path, NULL , x1, y1, x2, y2, r);
1003 }
1004
1005 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1006 {
1007     CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1008 }
1009
1010 // closes the current subpath
1011 void wxMacCoreGraphicsPathData::CloseSubpath()
1012 {
1013     CGPathCloseSubpath( m_path );
1014 }
1015
1016 // gets the last point of the current path, (0,0) if not yet set
1017 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1018 {
1019     CGPoint p = CGPathGetCurrentPoint( m_path );
1020     *x = p.x;
1021     *y = p.y;
1022 }
1023
1024 // transforms each point of this path by the matrix
1025 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1026 {
1027     CGMutablePathRef p = CGPathCreateMutable() ;
1028     CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1029     CGPathRelease( m_path );
1030     m_path = p;
1031 }
1032
1033 // gets the bounding box enclosing all points (possibly including control points)
1034 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1035 {
1036     CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1037     *x = bounds.origin.x;
1038     *y = bounds.origin.y;
1039     *w = bounds.size.width;
1040     *h = bounds.size.height;
1041 }
1042
1043 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, int fillStyle) const
1044 {
1045     return CGPathContainsPoint( m_path, NULL, CGPointMake(x,y), fillStyle == wxODDEVEN_RULE );
1046 }
1047
1048 //
1049 // Graphics Context
1050 //
1051
1052 //-----------------------------------------------------------------------------
1053 // wxMacCoreGraphicsContext declaration
1054 //-----------------------------------------------------------------------------
1055
1056 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1057 {
1058 public:
1059     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext );
1060
1061     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1062
1063     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1064
1065     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1066
1067     wxMacCoreGraphicsContext();
1068
1069     ~wxMacCoreGraphicsContext();
1070
1071     void Init();
1072
1073     // push the current state of the context, ie the transformation matrix on a stack
1074     virtual void PushState();
1075
1076     // pops a stored state from the stack
1077     virtual void PopState();
1078
1079     // clips drawings to the region
1080     virtual void Clip( const wxRegion &region );
1081
1082     // clips drawings to the rect
1083     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1084
1085     // resets the clipping to original extent
1086     virtual void ResetClip();
1087
1088     virtual void * GetNativeContext();
1089
1090     //
1091     // transformation
1092     //
1093
1094     // translate
1095     virtual void Translate( wxDouble dx , wxDouble dy );
1096
1097     // scale
1098     virtual void Scale( wxDouble xScale , wxDouble yScale );
1099
1100     // rotate (radians)
1101     virtual void Rotate( wxDouble angle );
1102
1103     // concatenates this transform with the current transform of this context
1104     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1105
1106     // sets the transform of this context
1107     virtual void SetTransform( const wxGraphicsMatrix& matrix );
1108
1109     // gets the matrix of this context
1110     virtual wxGraphicsMatrix GetTransform() const;
1111     //
1112     // setting the paint
1113     //
1114
1115     // strokes along a path with the current pen
1116     virtual void StrokePath( const wxGraphicsPath &path );
1117
1118     // fills a path with the current brush
1119     virtual void FillPath( const wxGraphicsPath &path, int fillStyle = wxODDEVEN_RULE );
1120
1121     // draws a path by first filling and then stroking
1122     virtual void DrawPath( const wxGraphicsPath &path, int fillStyle = wxODDEVEN_RULE );
1123
1124     virtual bool ShouldOffset() const
1125     {
1126         int penwidth = 0 ;
1127         if ( !m_pen.IsNull() )
1128         {
1129             penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1130             if ( penwidth == 0 )
1131                 penwidth = 1;
1132         }
1133         return ( penwidth % 2 ) == 1;
1134     }
1135     //
1136     // text
1137     //
1138
1139     virtual void DrawText( const wxString &str, wxDouble x, wxDouble y );
1140
1141     virtual void DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1142
1143     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1144         wxDouble *descent, wxDouble *externalLeading ) const;
1145
1146     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1147
1148     //
1149     // image support
1150     //
1151
1152     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1153
1154     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1155
1156     void SetNativeContext( CGContextRef cg );
1157
1158     DECLARE_NO_COPY_CLASS(wxMacCoreGraphicsContext)
1159     DECLARE_DYNAMIC_CLASS(wxMacCoreGraphicsContext)
1160
1161 private:
1162     void EnsureIsValid();
1163
1164     CGContextRef m_cgContext;
1165     WindowRef m_windowRef;
1166     bool m_releaseContext;
1167     CGAffineTransform m_windowTransform;
1168
1169     wxMacCFRefHolder<HIShapeRef> m_clipRgn;
1170 };
1171
1172 //-----------------------------------------------------------------------------
1173 // device context implementation
1174 //
1175 // more and more of the dc functionality should be implemented by calling
1176 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1177 // also coordinate conversions should be moved to native matrix ops
1178 //-----------------------------------------------------------------------------
1179
1180 // we always stock two context states, one at entry, to be able to preserve the
1181 // state we were called with, the other one after changing to HI Graphics orientation
1182 // (this one is used for getting back clippings etc)
1183
1184 //-----------------------------------------------------------------------------
1185 // wxMacCoreGraphicsContext implementation
1186 //-----------------------------------------------------------------------------
1187
1188 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1189
1190 void wxMacCoreGraphicsContext::Init()
1191 {
1192     m_cgContext = NULL;
1193     m_releaseContext = false;
1194     m_windowRef = NULL;
1195
1196     HIRect r = CGRectMake(0,0,0,0);
1197     m_clipRgn.Set(HIShapeCreateWithRect(&r));
1198 }
1199
1200 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext ) : wxGraphicsContext(renderer)
1201 {
1202     Init();
1203     SetNativeContext(cgcontext);
1204 }
1205
1206 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1207 {
1208     Init();
1209     m_windowRef = window;
1210 }
1211
1212 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1213 {
1214     Init();
1215     m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1216     int originX , originY;
1217     originX = originY = 0;
1218     window->MacWindowToRootWindow( &originX , &originY );
1219     Rect bounds;
1220     GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1221
1222     m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1223     m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1224     m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1225 }
1226
1227 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1228 {
1229     Init();
1230 }
1231
1232 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1233 {
1234     Init();
1235     wxLogDebug(wxT("Illegal Constructor called"));
1236 }
1237
1238 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1239 {
1240     SetNativeContext(NULL);
1241 }
1242
1243 void wxMacCoreGraphicsContext::EnsureIsValid()
1244 {
1245     if ( !m_cgContext )
1246     {
1247         OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1248         wxASSERT_MSG( status == noErr , wxT("Cannot nest wxDCs on the same window") );
1249
1250         CGContextConcatCTM( m_cgContext, m_windowTransform );
1251                 CGContextSaveGState( m_cgContext );
1252                 m_releaseContext = true;
1253                 if ( !HIShapeIsEmpty(m_clipRgn) )
1254                 {
1255                         HIShapeReplacePathInCGContext( m_clipRgn, m_cgContext );
1256                         CGContextClip( m_cgContext );
1257                 }
1258                 CGContextSaveGState( m_cgContext );
1259         }
1260 }
1261
1262
1263 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1264 {
1265     if( m_cgContext )
1266     {
1267         HIShapeRef shape = HIShapeCreateWithQDRgn( (RgnHandle) region.GetWXHRGN() );
1268         HIShapeReplacePathInCGContext( shape, m_cgContext );
1269         CGContextClip( m_cgContext );
1270         CFRelease( shape );
1271     }
1272     else
1273     {
1274         m_clipRgn.Set(HIShapeCreateWithQDRgn( (RgnHandle) region.GetWXHRGN() ));
1275     }
1276 }
1277
1278 // clips drawings to the rect
1279 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1280 {
1281     HIRect r = CGRectMake( x , y , w , h );
1282     if ( m_cgContext )
1283     {
1284         CGContextClipToRect( m_cgContext, r );
1285     }
1286     else
1287     {
1288         m_clipRgn.Set(HIShapeCreateWithRect(&r));
1289     }
1290 }
1291
1292     // resets the clipping to original extent
1293 void wxMacCoreGraphicsContext::ResetClip()
1294 {
1295     if ( m_cgContext )
1296     {
1297         CGContextRestoreGState( m_cgContext );
1298         CGContextSaveGState( m_cgContext );
1299     }
1300     else
1301     {
1302         HIRect r = CGRectMake(0,0,0,0);
1303         m_clipRgn.Set(HIShapeCreateWithRect(&r));
1304     }
1305 }
1306
1307 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1308 {
1309     if ( m_pen.IsNull() )
1310         return ;
1311
1312     EnsureIsValid();
1313
1314     bool offset = ShouldOffset();
1315     if ( offset )
1316         CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
1317
1318     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1319     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1320     CGContextStrokePath( m_cgContext );
1321
1322     if ( offset )
1323         CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
1324 }
1325
1326 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , int fillStyle )
1327 {
1328     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1329     {
1330         // when using shading, we cannot draw pen and brush at the same time
1331         // revert to the base implementation of first filling and then stroking
1332         wxGraphicsContext::DrawPath( path, fillStyle );
1333         return;
1334     }
1335
1336     CGPathDrawingMode mode = kCGPathFill ;
1337     if ( m_brush.IsNull() )
1338     {
1339         if ( m_pen.IsNull() )
1340             return;
1341         else
1342             mode = kCGPathStroke;
1343     }
1344     else
1345     {
1346         if ( m_pen.IsNull() )
1347         {
1348             if ( fillStyle == wxODDEVEN_RULE )
1349                 mode = kCGPathEOFill;
1350             else
1351                 mode = kCGPathFill;
1352         }
1353         else
1354         {
1355             if ( fillStyle == wxODDEVEN_RULE )
1356                 mode = kCGPathEOFillStroke;
1357             else
1358                 mode = kCGPathFillStroke;
1359         }
1360     }
1361
1362     EnsureIsValid();
1363
1364     if ( !m_brush.IsNull() )
1365         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1366     if ( !m_pen.IsNull() )
1367         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1368
1369     bool offset = ShouldOffset();
1370
1371     if ( offset )
1372         CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
1373
1374     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1375     CGContextDrawPath( m_cgContext , mode );
1376
1377     if ( offset )
1378         CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
1379 }
1380
1381 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , int fillStyle )
1382 {
1383     if ( m_brush.IsNull() )
1384         return;
1385
1386     EnsureIsValid();
1387
1388     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1389     {
1390         CGContextSaveGState( m_cgContext );
1391         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1392         CGContextClip( m_cgContext );
1393         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1394         CGContextRestoreGState( m_cgContext);
1395     }
1396     else
1397     {
1398         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1399         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1400         if ( fillStyle == wxODDEVEN_RULE )
1401             CGContextEOFillPath( m_cgContext );
1402         else
1403             CGContextFillPath( m_cgContext );
1404     }
1405 }
1406
1407 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
1408 {
1409     // we allow either setting or clearing but not replacing
1410     wxASSERT( m_cgContext == NULL || cg == NULL );
1411
1412     if ( m_cgContext )
1413     {
1414         // TODO : when is this necessary - should we add a Flush() method ? CGContextSynchronize( m_cgContext );
1415         CGContextRestoreGState( m_cgContext );
1416         CGContextRestoreGState( m_cgContext );
1417         if ( m_releaseContext )
1418             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
1419         else
1420             CGContextRelease(m_cgContext);
1421     }
1422
1423
1424     m_cgContext = cg;
1425
1426     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
1427     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
1428     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
1429     // for this one operation.
1430
1431     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
1432     // can be removed.
1433     if (m_cgContext)
1434     {
1435         CGContextRetain(m_cgContext);
1436         CGContextSaveGState( m_cgContext );
1437         CGContextSaveGState( m_cgContext );
1438         m_releaseContext = false;
1439     }
1440 }
1441
1442 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
1443 {
1444     if ( m_cgContext )
1445         CGContextTranslateCTM( m_cgContext, dx, dy );
1446     else
1447         m_windowTransform = CGAffineTransformTranslate(m_windowTransform,dx,dy);
1448 }
1449
1450 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
1451 {
1452     if ( m_cgContext )
1453         CGContextScaleCTM( m_cgContext , xScale , yScale );
1454     else
1455         m_windowTransform = CGAffineTransformScale(m_windowTransform,xScale,yScale);
1456 }
1457
1458 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
1459 {
1460     if ( m_cgContext )
1461         CGContextRotateCTM( m_cgContext , angle );
1462     else
1463         m_windowTransform = CGAffineTransformRotate(m_windowTransform,angle);
1464 }
1465
1466 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1467 {
1468     EnsureIsValid();
1469
1470     CGImageRef image = (CGImageRef)( bmp.CGImageCreate() );
1471     HIRect r = CGRectMake( x , y , w , h );
1472     HIViewDrawCGImage( m_cgContext , &r , image );
1473     CGImageRelease( image );
1474 }
1475
1476 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1477 {
1478     EnsureIsValid();
1479
1480     CGRect r = CGRectMake( 00 , 00 , w , h );
1481     CGContextSaveGState( m_cgContext );
1482     CGContextTranslateCTM( m_cgContext, x , y + h );
1483     CGContextScaleCTM( m_cgContext, 1, -1 );
1484     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
1485         NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) );
1486     CGContextRestoreGState( m_cgContext );
1487 }
1488
1489 void wxMacCoreGraphicsContext::PushState()
1490 {
1491     EnsureIsValid();
1492
1493     CGContextSaveGState( m_cgContext );
1494 }
1495
1496 void wxMacCoreGraphicsContext::PopState()
1497 {
1498     EnsureIsValid();
1499
1500     CGContextRestoreGState( m_cgContext );
1501 }
1502
1503 void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
1504 {
1505     DrawText(str, x, y, 0.0);
1506 }
1507
1508 void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle )
1509 {
1510     if ( m_font.IsNull() )
1511         return;
1512
1513     EnsureIsValid();
1514
1515     OSStatus status = noErr;
1516     ATSUTextLayout atsuLayout;
1517     UniCharCount chars = str.length();
1518     UniChar* ubuf = NULL;
1519
1520 #if SIZEOF_WCHAR_T == 4
1521     wxMBConvUTF16 converter;
1522 #if wxUSE_UNICODE
1523     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 );
1524     ubuf = (UniChar*) malloc( unicharlen + 2 );
1525     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 );
1526 #else
1527     const wxWCharBuffer wchar = str.wc_str( wxConvLocal );
1528     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
1529     ubuf = (UniChar*) malloc( unicharlen + 2 );
1530     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
1531 #endif
1532     chars = unicharlen / 2;
1533 #else
1534 #if wxUSE_UNICODE
1535     ubuf = (UniChar*) str.wc_str();
1536 #else
1537     wxWCharBuffer wchar = str.wc_str( wxConvLocal );
1538     chars = wxWcslen( wchar.data() );
1539     ubuf = (UniChar*) wchar.data();
1540 #endif
1541 #endif
1542
1543     ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
1544     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1545         &chars , &style , &atsuLayout );
1546
1547     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
1548
1549     status = ::ATSUSetTransientFontMatching( atsuLayout , true );
1550     wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
1551
1552     int iAngle = int( angle * RAD2DEG );
1553     if ( abs(iAngle) > 0 )
1554     {
1555         Fixed atsuAngle = IntToFixed( iAngle );
1556         ATSUAttributeTag atsuTags[] =
1557         {
1558             kATSULineRotationTag ,
1559         };
1560         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1561         {
1562             sizeof( Fixed ) ,
1563         };
1564         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1565         {
1566             &atsuAngle ,
1567         };
1568         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1569             atsuTags, atsuSizes, atsuValues );
1570     }
1571
1572     {
1573         ATSUAttributeTag atsuTags[] =
1574         {
1575             kATSUCGContextTag ,
1576         };
1577         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1578         {
1579             sizeof( CGContextRef ) ,
1580         };
1581         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1582         {
1583             &m_cgContext ,
1584         };
1585         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1586             atsuTags, atsuSizes, atsuValues );
1587     }
1588
1589     ATSUTextMeasurement textBefore, textAfter;
1590     ATSUTextMeasurement ascent, descent;
1591
1592     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1593         &textBefore , &textAfter, &ascent , &descent );
1594
1595     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1596
1597     Rect rect;
1598 /*
1599     // TODO
1600     if ( m_backgroundMode == wxSOLID )
1601     {
1602         wxGraphicsPath* path = m_graphicContext->CreatePath();
1603         path->MoveToPoint( drawX , drawY );
1604         path->AddLineToPoint(
1605             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent)) ,
1606             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent)) );
1607         path->AddLineToPoint(
1608             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent ) + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
1609             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent) - sin(angle / RAD2DEG) * FixedToInt(textAfter)) );
1610         path->AddLineToPoint(
1611             (int) (drawX + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
1612             (int) (drawY - sin(angle / RAD2DEG) * FixedToInt(textAfter)) );
1613
1614         m_graphicContext->FillPath( path , m_textBackgroundColour );
1615         delete path;
1616     }
1617 */
1618     x += (int)(sin(angle / RAD2DEG) * FixedToInt(ascent));
1619     y += (int)(cos(angle / RAD2DEG) * FixedToInt(ascent));
1620
1621     status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1622         IntToFixed(x) , IntToFixed(y) , &rect );
1623     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1624
1625     CGContextSaveGState(m_cgContext);
1626     CGContextTranslateCTM(m_cgContext, x, y);
1627     CGContextScaleCTM(m_cgContext, 1, -1);
1628     status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1629         IntToFixed(0) , IntToFixed(0) );
1630
1631     wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
1632
1633     CGContextRestoreGState(m_cgContext);
1634
1635     ::ATSUDisposeTextLayout(atsuLayout);
1636
1637 #if SIZEOF_WCHAR_T == 4
1638     free( ubuf );
1639 #endif
1640 }
1641
1642 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
1643                             wxDouble *descent, wxDouble *externalLeading ) const
1644 {
1645     wxCHECK_RET( !m_font.IsNull(), wxT("wxDC(cg)::DoGetTextExtent - no valid font set") );
1646
1647     OSStatus status = noErr;
1648
1649     ATSUTextLayout atsuLayout;
1650     UniCharCount chars = str.length();
1651     UniChar* ubuf = NULL;
1652
1653 #if SIZEOF_WCHAR_T == 4
1654     wxMBConvUTF16 converter;
1655 #if wxUSE_UNICODE
1656     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 );
1657     ubuf = (UniChar*) malloc( unicharlen + 2 );
1658     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 );
1659 #else
1660     const wxWCharBuffer wchar = str.wc_str( wxConvLocal );
1661     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
1662     ubuf = (UniChar*) malloc( unicharlen + 2 );
1663     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
1664 #endif
1665     chars = unicharlen / 2;
1666 #else
1667 #if wxUSE_UNICODE
1668     ubuf = (UniChar*) str.wc_str();
1669 #else
1670     wxWCharBuffer wchar = str.wc_str( wxConvLocal );
1671     chars = wxWcslen( wchar.data() );
1672     ubuf = (UniChar*) wchar.data();
1673 #endif
1674 #endif
1675
1676     ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
1677     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1678         &chars , &style , &atsuLayout );
1679
1680     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
1681
1682     ATSUTextMeasurement textBefore, textAfter;
1683     ATSUTextMeasurement textAscent, textDescent;
1684
1685     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1686         &textBefore , &textAfter, &textAscent , &textDescent );
1687
1688     if ( height )
1689         *height = FixedToInt(textAscent + textDescent);
1690     if ( descent )
1691         *descent = FixedToInt(textDescent);
1692     if ( externalLeading )
1693         *externalLeading = 0;
1694     if ( width )
1695         *width = FixedToInt(textAfter - textBefore);
1696
1697     ::ATSUDisposeTextLayout(atsuLayout);
1698 }
1699
1700 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
1701 {
1702     widths.Empty();
1703     widths.Add(0, text.length());
1704
1705     if (text.empty())
1706         return;
1707
1708     ATSUTextLayout atsuLayout;
1709     UniCharCount chars = text.length();
1710     UniChar* ubuf = NULL;
1711
1712 #if SIZEOF_WCHAR_T == 4
1713     wxMBConvUTF16 converter;
1714 #if wxUSE_UNICODE
1715     size_t unicharlen = converter.WC2MB( NULL , text.wc_str() , 0 );
1716     ubuf = (UniChar*) malloc( unicharlen + 2 );
1717     converter.WC2MB( (char*) ubuf , text.wc_str(), unicharlen + 2 );
1718 #else
1719     const wxWCharBuffer wchar = text.wc_str( wxConvLocal );
1720     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
1721     ubuf = (UniChar*) malloc( unicharlen + 2 );
1722     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
1723 #endif
1724     chars = unicharlen / 2;
1725 #else
1726 #if wxUSE_UNICODE
1727     ubuf = (UniChar*) text.wc_str();
1728 #else
1729     wxWCharBuffer wchar = text.wc_str( wxConvLocal );
1730     chars = wxWcslen( wchar.data() );
1731     ubuf = (UniChar*) wchar.data();
1732 #endif
1733 #endif
1734
1735     ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
1736     ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1737         &chars , &style , &atsuLayout );
1738
1739     for ( int pos = 0; pos < (int)chars; pos ++ )
1740     {
1741         unsigned long actualNumberOfBounds = 0;
1742         ATSTrapezoid glyphBounds;
1743
1744         // We get a single bound, since the text should only require one. If it requires more, there is an issue
1745         OSStatus result;
1746         result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
1747             kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
1748         if (result != noErr || actualNumberOfBounds != 1 )
1749             return;
1750
1751         widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
1752         //unsigned char uch = s[i];
1753     }
1754
1755     ::ATSUDisposeTextLayout(atsuLayout);
1756 }
1757
1758 void * wxMacCoreGraphicsContext::GetNativeContext()
1759 {
1760     return m_cgContext;
1761 }
1762
1763 // concatenates this transform with the current transform of this context
1764 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
1765 {
1766     if ( m_cgContext )
1767         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
1768     else
1769         m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
1770 }
1771
1772 // sets the transform of this context
1773 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
1774 {
1775     if ( m_cgContext )
1776     {
1777         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1778         transform = CGAffineTransformInvert( transform ) ;
1779         CGContextConcatCTM( m_cgContext, transform);
1780         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
1781     }
1782     else
1783     {
1784         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
1785     }
1786 }
1787
1788 // gets the matrix of this context
1789 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
1790 {
1791     wxGraphicsMatrix m = CreateMatrix();
1792     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
1793         CGContextGetCTM( m_cgContext ));
1794     return m;
1795 }
1796
1797 //
1798 // Renderer
1799 //
1800
1801 //-----------------------------------------------------------------------------
1802 // wxMacCoreGraphicsRenderer declaration
1803 //-----------------------------------------------------------------------------
1804
1805 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
1806 {
1807 public :
1808     wxMacCoreGraphicsRenderer() {}
1809
1810     virtual ~wxMacCoreGraphicsRenderer() {}
1811
1812     // Context
1813
1814     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
1815
1816     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
1817
1818     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
1819
1820     virtual wxGraphicsContext * CreateContext( wxWindow* window );
1821
1822     // Path
1823
1824     virtual wxGraphicsPath CreatePath();
1825
1826     // Matrix
1827
1828     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
1829         wxDouble tx=0.0, wxDouble ty=0.0);
1830
1831
1832     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
1833
1834     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
1835
1836     // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
1837     virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
1838         const wxColour&c1, const wxColour&c2) ;
1839
1840     // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
1841     // with radius r and color cColor
1842     virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
1843         const wxColour &oColor, const wxColour &cColor) ;
1844
1845    // sets the font
1846     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
1847
1848 private :
1849     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
1850 } ;
1851
1852 //-----------------------------------------------------------------------------
1853 // wxMacCoreGraphicsRenderer implementation
1854 //-----------------------------------------------------------------------------
1855
1856 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
1857
1858 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
1859
1860 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
1861 {
1862     return &gs_MacCoreGraphicsRenderer;
1863 }
1864
1865 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc)
1866 {
1867    return new wxMacCoreGraphicsContext(this,(CGContextRef)dc.GetWindow()->MacGetCGContextRef() );
1868 }
1869
1870 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
1871 {
1872     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
1873 }
1874
1875
1876 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
1877 {
1878     return new wxMacCoreGraphicsContext(this,(WindowRef)window);
1879 }
1880
1881 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
1882 {
1883     return new wxMacCoreGraphicsContext(this, window );
1884 }
1885
1886 // Path
1887
1888 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
1889 {
1890     wxGraphicsPath m;
1891     m.SetRefData( new wxMacCoreGraphicsPathData(this));
1892     return m;
1893 }
1894
1895
1896 // Matrix
1897
1898 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
1899     wxDouble tx, wxDouble ty)
1900 {
1901     wxGraphicsMatrix m;
1902     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
1903     data->Set( a,b,c,d,tx,ty ) ;
1904     m.SetRefData(data);
1905     return m;
1906 }
1907
1908 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
1909 {
1910     if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
1911         return wxNullGraphicsPen;
1912     else
1913     {
1914         wxGraphicsPen p;
1915         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
1916         return p;
1917     }
1918 }
1919
1920 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
1921 {
1922     if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
1923         return wxNullGraphicsBrush;
1924     else
1925     {
1926         wxGraphicsBrush p;
1927         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
1928         return p;
1929     }
1930 }
1931
1932 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
1933 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
1934     const wxColour&c1, const wxColour&c2)
1935 {
1936     wxGraphicsBrush p;
1937     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
1938     d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
1939     p.SetRefData(d);
1940     return p;
1941 }
1942
1943 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
1944 // with radius r and color cColor
1945 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
1946     const wxColour &oColor, const wxColour &cColor)
1947 {
1948     wxGraphicsBrush p;
1949     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
1950     d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
1951     p.SetRefData(d);
1952     return p;
1953 }
1954
1955 // sets the font
1956 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
1957 {
1958     if ( font.Ok() )
1959     {
1960         wxGraphicsFont p;
1961         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
1962         return p;
1963     }
1964     else
1965         return wxNullGraphicsFont;
1966 }
1967
1968
1969
1970 #endif // wxMAC_USE_CORE_GRAPHICS