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 = NULL;
 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 wxMacCoreGraphicsMatrix : public wxGraphicsMatrix
 702 {
 703 public :
 704     wxMacCoreGraphicsMatrix() ;
 705
 706         wxMacCoreGraphicsMatrix(wxGraphicsRenderer* renderer, wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
 707                 wxDouble tx=0.0, wxDouble ty=0.0) ;
 708
 709         virtual ~wxMacCoreGraphicsMatrix() ;
 710
 711     virtual wxGraphicsMatrix *Clone() const ;
 712
 713         // concatenates the matrix
 714         virtual void Concat( const wxGraphicsMatrix *t );
 715
 716         // copies the passed in matrix
 717         virtual void Copy( const wxGraphicsMatrix *t );
 718
 719         // sets the matrix to the respective values
 720         virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
 721                 wxDouble tx=0.0, wxDouble ty=0.0);
 722
 723         // makes this the inverse matrix
 724         virtual void Invert();
 725
 726         // returns true if the elements of the transformation matrix are equal ?
 727     virtual bool IsEqual( const wxGraphicsMatrix* t) const ;
 728
 729         // return true if this is the identity matrix
 730         virtual bool IsIdentity();
 731
 732     //
 733     // transformation
 734     //
 735
 736     // add the translation to this matrix
 737     virtual void Translate( wxDouble dx , wxDouble dy );
 738
 739     // add the scale to this matrix
 740     virtual void Scale( wxDouble xScale , wxDouble yScale );
 741
 742     // add the rotation to this matrix (radians)
 743     virtual void Rotate( wxDouble angle );
 744
 745     //
 746     // apply the transforms
 747     //
 748
 749         // applies that matrix to the point
 750         virtual void TransformPoint( wxDouble *x, wxDouble *y );
 751
 752         // applies the matrix except for translations
 753         virtual void TransformDistance( wxDouble *dx, wxDouble *dy );
 754
 755         // returns the native representation
 756         virtual void * GetNativeMatrix() const;
 757
 758 private :
 759     CGAffineTransform m_matrix;
 760
 761     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsMatrix)
 762 } ;
 763
 764 //-----------------------------------------------------------------------------
 765 // wxMacCoreGraphicsMatrix implementation
 766 //-----------------------------------------------------------------------------
 767
 768 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsMatrix, wxGraphicsMatrix)
 769
 770 wxMacCoreGraphicsMatrix::wxMacCoreGraphicsMatrix() : wxGraphicsMatrix(NULL)
 771 {
 772     wxLogDebug(wxT("Illegal Constructor called"));
 773 }
 774
 775 wxMacCoreGraphicsMatrix::wxMacCoreGraphicsMatrix(wxGraphicsRenderer* renderer, wxDouble a, wxDouble b, wxDouble c, wxDouble d,
 776     wxDouble tx, wxDouble ty) : wxGraphicsMatrix(renderer)
 777 {
 778     m_matrix = CGAffineTransformMake(a,b,c,d,tx,ty);
 779 }
 780
 781 wxMacCoreGraphicsMatrix::~wxMacCoreGraphicsMatrix()
 782 {
 783 }
 784
 785 wxGraphicsMatrix *wxMacCoreGraphicsMatrix::Clone() const
 786 {
 787     wxMacCoreGraphicsMatrix* m = new wxMacCoreGraphicsMatrix(GetRenderer()) ;
 788     m->m_matrix = m_matrix ;
 789     return m;
 790 }
 791
 792 // concatenates the matrix
 793 void wxMacCoreGraphicsMatrix::Concat( const wxGraphicsMatrix *t )
 794 {
 795     m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
 796 }
 797
 798 // copies the passed in matrix
 799 void wxMacCoreGraphicsMatrix::Copy( const wxGraphicsMatrix *t )
 800 {
 801     m_matrix = *((CGAffineTransform*) t->GetNativeMatrix());
 802 }
 803
 804 // sets the matrix to the respective values
 805 void wxMacCoreGraphicsMatrix::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
 806     wxDouble tx, wxDouble ty)
 807 {
 808     m_matrix = CGAffineTransformMake(a,b,c,d,tx,ty);
 809 }
 810
 811 // makes this the inverse matrix
 812 void wxMacCoreGraphicsMatrix::Invert()
 813 {
 814     m_matrix = CGAffineTransformInvert( m_matrix );
 815 }
 816
 817 // returns true if the elements of the transformation matrix are equal ?
 818 bool wxMacCoreGraphicsMatrix::IsEqual( const wxGraphicsMatrix* t) const
 819 {
 820     const CGAffineTransform* tm = (CGAffineTransform*) t->GetNativeMatrix();
 821     return (
 822         m_matrix.a == tm->a &&
 823         m_matrix.b == tm->b &&
 824         m_matrix.c == tm->c &&
 825         m_matrix.d == tm->d &&
 826         m_matrix.tx == tm->tx &&
 827         m_matrix.ty == tm->ty ) ;
 828
 829     return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
 830 }
 831
 832 // return true if this is the identity matrix
 833 bool wxMacCoreGraphicsMatrix::IsIdentity()
 834 {
 835     return ( m_matrix.a == 1 && m_matrix.d == 1 &&
 836         m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
 837 }
 838
 839 //
 840 // transformation
 841 //
 842
 843 // add the translation to this matrix
 844 void wxMacCoreGraphicsMatrix::Translate( wxDouble dx , wxDouble dy )
 845 {
 846     m_matrix = CGAffineTransformTranslate( m_matrix, dx, dy);
 847 }
 848
 849 // add the scale to this matrix
 850 void wxMacCoreGraphicsMatrix::Scale( wxDouble xScale , wxDouble yScale )
 851 {
 852     m_matrix = CGAffineTransformScale( m_matrix, xScale, yScale);
 853 }
 854
 855 // add the rotation to this matrix (radians)
 856 void wxMacCoreGraphicsMatrix::Rotate( wxDouble angle )
 857 {
 858     m_matrix = CGAffineTransformRotate( m_matrix, angle);
 859 }
 860
 861 //
 862 // apply the transforms
 863 //
 864
 865 // applies that matrix to the point
 866 void wxMacCoreGraphicsMatrix::TransformPoint( wxDouble *x, wxDouble *y )
 867 {
 868     CGPoint pt = CGPointApplyAffineTransform( CGPointMake(*x,*y), m_matrix);
 869
 870     *x = pt.x;
 871     *y = pt.y;
 872 }
 873
 874 // applies the matrix except for translations
 875 void wxMacCoreGraphicsMatrix::TransformDistance( wxDouble *dx, wxDouble *dy )
 876 {
 877     CGSize sz = CGSizeApplyAffineTransform( CGSizeMake(*dx,*dy) , m_matrix );
 878     *dx = sz.width;
 879     *dy = sz.height;
 880 }
 881
 882 // returns the native representation
 883 void * wxMacCoreGraphicsMatrix::GetNativeMatrix() const
 884 {
 885     return (void*) &m_matrix;
 886 }
 887
 888 //
 889 // Graphics Path
 890 //
 891
 892 //-----------------------------------------------------------------------------
 893 // wxMacCoreGraphicsPath declaration
 894 //-----------------------------------------------------------------------------
 895
 896 class WXDLLEXPORT wxMacCoreGraphicsPath : public wxGraphicsPath
 897 {
 898 public :
 899     wxMacCoreGraphicsPath( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
 900
 901     wxMacCoreGraphicsPath();
 902
 903     ~wxMacCoreGraphicsPath();
 904
 905     virtual wxGraphicsPath *Clone() const;
 906
 907     // begins a new subpath at (x,y)
 908     virtual void MoveToPoint( wxDouble x, wxDouble y );
 909
 910     // adds a straight line from the current point to (x,y)
 911     virtual void AddLineToPoint( wxDouble x, wxDouble y );
 912
 913     // adds a cubic Bezier curve from the current point, using two control points and an end point
 914     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
 915
 916     // closes the current sub-path
 917     virtual void CloseSubpath();
 918
 919     // gets the last point of the current path, (0,0) if not yet set
 920     virtual void GetCurrentPoint( wxDouble& x, wxDouble&y);
 921
 922     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
 923     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
 924
 925     //
 926     // These are convenience functions which - if not available natively will be assembled
 927     // using the primitives from above
 928     //
 929
 930     // adds a quadratic Bezier curve from the current point, using a control point and an end point
 931     virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
 932
 933     // appends a rectangle as a new closed subpath
 934     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
 935
 936     // appends an ellipsis as a new closed subpath fitting the passed rectangle
 937     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
 938
 939     // 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)
 940     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
 941
 942         // adds another path
 943         virtual void AddPath( const wxGraphicsPath* path );
 944
 945         // returns the native path
 946         virtual void * GetNativePath() const { return m_path; }
 947
 948         // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
 949         virtual void UnGetNativePath(void *p) {}
 950
 951         // transforms each point of this path by the matrix
 952         virtual void Transform( wxGraphicsMatrix* matrix );
 953
 954         // gets the bounding box enclosing all points (possibly including control points)
 955         virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y);
 956
 957         virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxWINDING_RULE);
 958     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsPath)
 959 private :
 960     CGMutablePathRef m_path;
 961 };
 962
 963 //-----------------------------------------------------------------------------
 964 // wxMacCoreGraphicsPath implementation
 965 //-----------------------------------------------------------------------------
 966
 967 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsPath, wxGraphicsPath)
 968
 969 wxMacCoreGraphicsPath::wxMacCoreGraphicsPath() :  wxGraphicsPath(NULL)
 970 {
 971     wxLogDebug(wxT("Illegal Constructor called"));
 972 }
 973
 974
 975 wxMacCoreGraphicsPath::wxMacCoreGraphicsPath( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPath(renderer)
 976 {
 977         if ( path )
 978                 m_path = path;
 979         else
 980                 m_path = CGPathCreateMutable();
 981 }
 982
 983 wxMacCoreGraphicsPath::~wxMacCoreGraphicsPath()
 984 {
 985     CGPathRelease( m_path );
 986 }
 987
 988 wxGraphicsPath* wxMacCoreGraphicsPath::Clone() const
 989 {
 990         wxMacCoreGraphicsPath* clone = new wxMacCoreGraphicsPath(GetRenderer(),CGPathCreateMutableCopy(m_path));
 991         return clone ;
 992 }
 993
 994
 995 // opens (starts) a new subpath
 996 void wxMacCoreGraphicsPath::MoveToPoint( wxDouble x1 , wxDouble y1 )
 997 {
 998     CGPathMoveToPoint( m_path , NULL , x1 , y1 );
 999 }
1000
1001 void wxMacCoreGraphicsPath::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1002 {
1003     CGPathAddLineToPoint( m_path , NULL , x1 , y1 );
1004 }
1005
1006 void wxMacCoreGraphicsPath::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1007 {
1008     CGPathAddCurveToPoint( m_path , NULL , cx1 , cy1 , cx2, cy2, x , y );
1009 }
1010
1011 void wxMacCoreGraphicsPath::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1012 {
1013     CGPathAddQuadCurveToPoint( m_path , NULL , cx1 , cy1 , x , y );
1014 }
1015
1016 void wxMacCoreGraphicsPath::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1017 {
1018     CGRect cgRect = { { x , y } , { w , h } };
1019     CGPathAddRect( m_path , NULL , cgRect );
1020 }
1021
1022 void wxMacCoreGraphicsPath::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1023 {
1024     CGPathAddArc( m_path , NULL , x , y , r , 0.0 , 2 * M_PI , true );
1025 }
1026
1027 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1028 void wxMacCoreGraphicsPath::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1029 {
1030     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1031     CGPathAddArc( m_path, NULL , x, y, r, startAngle, endAngle, !clockwise);
1032 }
1033
1034 void wxMacCoreGraphicsPath::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1035 {
1036     CGPathAddArcToPoint( m_path, NULL , x1, y1, x2, y2, r);
1037 }
1038
1039 void wxMacCoreGraphicsPath::AddPath( const wxGraphicsPath* path )
1040 {
1041         CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1042 }
1043
1044 // closes the current subpath
1045 void wxMacCoreGraphicsPath::CloseSubpath()
1046 {
1047     CGPathCloseSubpath( m_path );
1048 }
1049
1050 // gets the last point of the current path, (0,0) if not yet set
1051 void wxMacCoreGraphicsPath::GetCurrentPoint( wxDouble& x, wxDouble&y)
1052 {
1053     CGPoint p = CGPathGetCurrentPoint( m_path );
1054     x = p.x;
1055     y = p.y;
1056 }
1057
1058 // transforms each point of this path by the matrix
1059 void wxMacCoreGraphicsPath::Transform( wxGraphicsMatrix* matrix )
1060 {
1061         CGMutablePathRef p = CGPathCreateMutable() ;
1062         CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1063         CGPathRelease( m_path );
1064         m_path = p;
1065 }
1066
1067 // gets the bounding box enclosing all points (possibly including control points)
1068 void wxMacCoreGraphicsPath::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h)
1069 {
1070         CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1071         *x = bounds.origin.x;
1072         *y = bounds.origin.y;
1073         *w = bounds.size.width;
1074         *h = bounds.size.height;
1075 }
1076
1077 bool wxMacCoreGraphicsPath::Contains( wxDouble x, wxDouble y, int fillStyle)
1078 {
1079         return CGPathContainsPoint( m_path, NULL, CGPointMake(x,y), fillStyle == wxODDEVEN_RULE );
1080 }
1081
1082
1083 //
1084 // Graphics Pen
1085 //
1086
1087 //-----------------------------------------------------------------------------
1088 // wxMacCoreGraphicsPen declaration
1089 //-----------------------------------------------------------------------------
1090
1091
1092 //
1093 // Graphics Context
1094 //
1095
1096 //-----------------------------------------------------------------------------
1097 // wxMacCoreGraphicsContext declaration
1098 //-----------------------------------------------------------------------------
1099
1100 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1101 {
1102 public:
1103     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext );
1104
1105     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1106
1107     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1108
1109     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1110
1111     wxMacCoreGraphicsContext();
1112
1113     ~wxMacCoreGraphicsContext();
1114
1115         void Init();
1116
1117     // push the current state of the context, ie the transformation matrix on a stack
1118     virtual void PushState();
1119
1120     // pops a stored state from the stack
1121     virtual void PopState();
1122
1123     // clips drawings to the region
1124     virtual void Clip( const wxRegion &region );
1125
1126     // clips drawings to the rect
1127     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1128
1129     // resets the clipping to original extent
1130     virtual void ResetClip();
1131
1132     virtual void * GetNativeContext();
1133
1134     //
1135     // transformation
1136     //
1137
1138     // translate
1139     virtual void Translate( wxDouble dx , wxDouble dy );
1140
1141     // scale
1142     virtual void Scale( wxDouble xScale , wxDouble yScale );
1143
1144     // rotate (radians)
1145     virtual void Rotate( wxDouble angle );
1146
1147         // concatenates this transform with the current transform of this context
1148         virtual void ConcatTransform( const wxGraphicsMatrix* matrix );
1149
1150         // sets the transform of this context
1151         virtual void SetTransform( const wxGraphicsMatrix* matrix );
1152
1153         // gets the matrix of this context
1154         virtual void GetTransform( wxGraphicsMatrix* matrix );
1155     //
1156     // setting the paint
1157     //
1158
1159     // strokes along a path with the current pen
1160     virtual void StrokePath( const wxGraphicsPath *path );
1161
1162     // fills a path with the current brush
1163     virtual void FillPath( const wxGraphicsPath *path, int fillStyle = wxWINDING_RULE );
1164
1165     // draws a path by first filling and then stroking
1166     virtual void DrawPath( const wxGraphicsPath *path, int fillStyle = wxWINDING_RULE );
1167
1168     virtual bool ShouldOffset() const
1169     {
1170         int penwidth = 0 ;
1171         if ( !m_pen.IsNull() )
1172         {
1173             penwidth = ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1174             if ( penwidth == 0 )
1175                 penwidth = 1;
1176         }
1177         return ( penwidth % 2 ) == 1;
1178     }
1179     //
1180     // text
1181     //
1182
1183     virtual void DrawText( const wxString &str, wxDouble x, wxDouble y );
1184
1185     virtual void DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1186
1187     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1188         wxDouble *descent, wxDouble *externalLeading ) const;
1189
1190     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1191
1192     //
1193     // image support
1194     //
1195
1196     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1197
1198     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1199
1200     void SetNativeContext( CGContextRef cg );
1201
1202     DECLARE_NO_COPY_CLASS(wxMacCoreGraphicsContext)
1203     DECLARE_DYNAMIC_CLASS(wxMacCoreGraphicsContext)
1204
1205 private:
1206     void EnsureIsValid();
1207
1208     CGContextRef m_cgContext;
1209         WindowRef m_windowRef;
1210         int m_originX;
1211         int m_originY;
1212         wxMacCFRefHolder<HIShapeRef> m_clipRgn;
1213         bool m_releaseContext;
1214 };
1215
1216 //-----------------------------------------------------------------------------
1217 // device context implementation
1218 //
1219 // more and more of the dc functionality should be implemented by calling
1220 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1221 // also coordinate conversions should be moved to native matrix ops
1222 //-----------------------------------------------------------------------------
1223
1224 // we always stock two context states, one at entry, to be able to preserve the
1225 // state we were called with, the other one after changing to HI Graphics orientation
1226 // (this one is used for getting back clippings etc)
1227
1228 //-----------------------------------------------------------------------------
1229 // wxMacCoreGraphicsContext implementation
1230 //-----------------------------------------------------------------------------
1231
1232 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1233
1234 void wxMacCoreGraphicsContext::Init()
1235 {
1236     m_cgContext = NULL;
1237         m_releaseContext = false;
1238     m_windowRef = NULL;
1239         m_originX = 0;
1240         m_originY = 0;
1241     HIRect r = CGRectMake(0,0,0,0);
1242     m_clipRgn.Set(HIShapeCreateWithRect(&r));
1243 }
1244
1245 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext ) : wxGraphicsContext(renderer)
1246 {
1247         Init();
1248         m_cgContext = cgcontext;
1249     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
1250     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
1251     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
1252     // for this one operation.
1253
1254     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
1255     // can be removed.
1256     if (m_cgContext)
1257     {
1258         CGContextSaveGState( m_cgContext );
1259         CGContextSaveGState( m_cgContext );
1260     }
1261 }
1262
1263 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1264 {
1265         Init();
1266         m_windowRef = window;
1267 }
1268
1269 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1270 {
1271         Init();
1272         m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1273     m_originX = m_originY = 0;
1274     window->MacWindowToRootWindow( &m_originX , &m_originY );
1275 }
1276
1277 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1278 {
1279         Init();
1280 }
1281
1282 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1283 {
1284         Init();
1285     wxLogDebug(wxT("Illegal Constructor called"));
1286 }
1287
1288 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1289 {
1290     if ( m_cgContext )
1291     {
1292         // TODO : when is this necessary - should we add a Flush() method ? CGContextSynchronize( m_cgContext );
1293         CGContextRestoreGState( m_cgContext );
1294         CGContextRestoreGState( m_cgContext );
1295     }
1296
1297     if ( m_releaseContext )
1298                 QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
1299 }
1300
1301 void wxMacCoreGraphicsContext::EnsureIsValid()
1302 {
1303         if ( !m_cgContext )
1304         {
1305                 OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1306                 wxASSERT_MSG( status == noErr , wxT("Cannot nest wxDCs on the same window") );
1307                 Rect bounds;
1308                 GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1309                 CGContextSaveGState( m_cgContext );
1310                 CGContextTranslateCTM( m_cgContext , 0 , bounds.bottom - bounds.top );
1311                 CGContextScaleCTM( m_cgContext , 1 , -1 );
1312                 CGContextTranslateCTM( m_cgContext, m_originX, m_originY );
1313                 CGContextSaveGState( m_cgContext );
1314                 m_releaseContext = true;
1315                 if ( !HIShapeIsEmpty(m_clipRgn) )
1316                 {
1317                         HIShapeReplacePathInCGContext( m_clipRgn, m_cgContext );
1318                         CGContextClip( m_cgContext );
1319                 }
1320         }
1321 }
1322
1323
1324 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1325 {
1326         if( m_cgContext )
1327         {
1328                 HIShapeRef shape = HIShapeCreateWithQDRgn( (RgnHandle) region.GetWXHRGN() );
1329                 HIShapeReplacePathInCGContext( shape, m_cgContext );
1330                 CGContextClip( m_cgContext );
1331                 CFRelease( shape );
1332         }
1333         else
1334         {
1335                 m_clipRgn.Set(HIShapeCreateWithQDRgn( (RgnHandle) region.GetWXHRGN() ));
1336         }
1337 }
1338
1339 // clips drawings to the rect
1340 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1341 {
1342         HIRect r = CGRectMake( x , y , w , h );
1343         if ( m_cgContext )
1344         {
1345                 CGContextClipToRect( m_cgContext, r );
1346         }
1347         else
1348         {
1349                 m_clipRgn.Set(HIShapeCreateWithRect(&r));
1350         }
1351 }
1352
1353         // resets the clipping to original extent
1354 void wxMacCoreGraphicsContext::ResetClip()
1355 {
1356         if ( m_cgContext )
1357         {
1358                 CGContextRestoreGState( m_cgContext );
1359                 CGContextSaveGState( m_cgContext );
1360         }
1361         else
1362         {
1363         HIRect r = CGRectMake(0,0,0,0);
1364         m_clipRgn.Set(HIShapeCreateWithRect(&r));
1365         }
1366 }
1367
1368 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath *path )
1369 {
1370     if ( m_pen.IsNull() )
1371         return ;
1372
1373         EnsureIsValid();
1374
1375     bool offset = ShouldOffset();
1376     if ( offset )
1377         CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
1378
1379     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1380     CGContextAddPath( m_cgContext , (CGPathRef) path->GetNativePath() );
1381     CGContextStrokePath( m_cgContext );
1382
1383     if ( offset )
1384         CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
1385 }
1386
1387 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath *path , int fillStyle )
1388 {
1389     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1390     {
1391         // when using shading, we cannot draw pen and brush at the same time
1392         // revert to the base implementation of first filling and then stroking
1393         wxGraphicsContext::DrawPath( path, fillStyle );
1394         return;
1395     }
1396
1397     CGPathDrawingMode mode = kCGPathFill ;
1398     if ( m_brush.IsNull() )
1399     {
1400         if ( m_pen.IsNull() )
1401             return;
1402         else
1403             mode = kCGPathStroke;
1404     }
1405     else
1406     {
1407         if ( m_pen.IsNull() )
1408         {
1409             if ( fillStyle == wxODDEVEN_RULE )
1410                 mode = kCGPathEOFill;
1411             else
1412                 mode = kCGPathFill;
1413         }
1414         else
1415         {
1416             if ( fillStyle == wxODDEVEN_RULE )
1417                 mode = kCGPathEOFillStroke;
1418             else
1419                 mode = kCGPathFillStroke;
1420         }
1421     }
1422
1423         EnsureIsValid();
1424
1425     if ( !m_brush.IsNull() )
1426         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1427     if ( !m_pen.IsNull() )
1428         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1429
1430     bool offset = ShouldOffset();
1431
1432     if ( offset )
1433         CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
1434
1435     CGContextAddPath( m_cgContext , (CGPathRef) path->GetNativePath() );
1436     CGContextDrawPath( m_cgContext , mode );
1437
1438     if ( offset )
1439         CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
1440 }
1441
1442 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath *path , int fillStyle )
1443 {
1444     if ( m_brush.IsNull() )
1445         return;
1446
1447         EnsureIsValid();
1448
1449     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1450     {
1451         CGContextSaveGState( m_cgContext );
1452         CGContextAddPath( m_cgContext , (CGPathRef) path->GetNativePath() );
1453         CGContextClip( m_cgContext );
1454         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1455         CGContextRestoreGState( m_cgContext);
1456     }
1457     else
1458     {
1459         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1460         CGContextAddPath( m_cgContext , (CGPathRef) path->GetNativePath() );
1461         if ( fillStyle == wxODDEVEN_RULE )
1462             CGContextEOFillPath( m_cgContext );
1463         else
1464             CGContextFillPath( m_cgContext );
1465     }
1466 }
1467
1468 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
1469 {
1470     // we allow either setting or clearing but not replacing
1471     wxASSERT( m_cgContext == NULL || cg == NULL );
1472
1473     if ( cg )
1474         CGContextSaveGState( cg );
1475     m_cgContext = cg;
1476 }
1477
1478 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
1479 {
1480         EnsureIsValid();
1481
1482     CGContextTranslateCTM( m_cgContext, dx, dy );
1483 }
1484
1485 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
1486 {
1487         EnsureIsValid();
1488
1489     CGContextScaleCTM( m_cgContext , xScale , yScale );
1490 }
1491
1492 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
1493 {
1494         EnsureIsValid();
1495
1496     CGContextRotateCTM( m_cgContext , angle );
1497 }
1498
1499 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1500 {
1501         EnsureIsValid();
1502
1503     CGImageRef image = (CGImageRef)( bmp.CGImageCreate() );
1504     HIRect r = CGRectMake( x , y , w , h );
1505     HIViewDrawCGImage( m_cgContext , &r , image );
1506     CGImageRelease( image );
1507 }
1508
1509 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1510 {
1511         EnsureIsValid();
1512
1513     CGRect r = CGRectMake( 00 , 00 , w , h );
1514     CGContextSaveGState( m_cgContext );
1515     CGContextTranslateCTM( m_cgContext, x , y + h );
1516     CGContextScaleCTM( m_cgContext, 1, -1 );
1517     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
1518         NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) );
1519     CGContextRestoreGState( m_cgContext );
1520 }
1521
1522 void wxMacCoreGraphicsContext::PushState()
1523 {
1524         EnsureIsValid();
1525
1526     CGContextSaveGState( m_cgContext );
1527 }
1528
1529 void wxMacCoreGraphicsContext::PopState()
1530 {
1531         EnsureIsValid();
1532
1533     CGContextRestoreGState( m_cgContext );
1534 }
1535
1536 void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
1537 {
1538     DrawText(str, x, y, 0.0);
1539 }
1540
1541 void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle )
1542 {
1543     if ( m_font.IsNull() )
1544         return;
1545
1546         EnsureIsValid();
1547
1548     OSStatus status = noErr;
1549     ATSUTextLayout atsuLayout;
1550     UniCharCount chars = str.length();
1551     UniChar* ubuf = NULL;
1552
1553 #if SIZEOF_WCHAR_T == 4
1554     wxMBConvUTF16 converter;
1555 #if wxUSE_UNICODE
1556     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 );
1557     ubuf = (UniChar*) malloc( unicharlen + 2 );
1558     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 );
1559 #else
1560     const wxWCharBuffer wchar = str.wc_str( wxConvLocal );
1561     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
1562     ubuf = (UniChar*) malloc( unicharlen + 2 );
1563     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
1564 #endif
1565     chars = unicharlen / 2;
1566 #else
1567 #if wxUSE_UNICODE
1568     ubuf = (UniChar*) str.wc_str();
1569 #else
1570     wxWCharBuffer wchar = str.wc_str( wxConvLocal );
1571     chars = wxWcslen( wchar.data() );
1572     ubuf = (UniChar*) wchar.data();
1573 #endif
1574 #endif
1575
1576     ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
1577     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1578         &chars , &style , &atsuLayout );
1579
1580     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
1581
1582     status = ::ATSUSetTransientFontMatching( atsuLayout , true );
1583     wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
1584
1585     int iAngle = int( angle * RAD2DEG );
1586     if ( abs(iAngle) > 0 )
1587     {
1588         Fixed atsuAngle = IntToFixed( iAngle );
1589         ATSUAttributeTag atsuTags[] =
1590         {
1591             kATSULineRotationTag ,
1592         };
1593         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1594         {
1595             sizeof( Fixed ) ,
1596         };
1597         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1598         {
1599             &atsuAngle ,
1600         };
1601         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1602             atsuTags, atsuSizes, atsuValues );
1603     }
1604
1605     {
1606         ATSUAttributeTag atsuTags[] =
1607         {
1608             kATSUCGContextTag ,
1609         };
1610         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1611         {
1612             sizeof( CGContextRef ) ,
1613         };
1614         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1615         {
1616             &m_cgContext ,
1617         };
1618         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1619             atsuTags, atsuSizes, atsuValues );
1620     }
1621
1622     ATSUTextMeasurement textBefore, textAfter;
1623     ATSUTextMeasurement ascent, descent;
1624
1625     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1626         &textBefore , &textAfter, &ascent , &descent );
1627
1628     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1629
1630     Rect rect;
1631 /*
1632     // TODO
1633     if ( m_backgroundMode == wxSOLID )
1634     {
1635         wxGraphicsPath* path = m_graphicContext->CreatePath();
1636         path->MoveToPoint( drawX , drawY );
1637         path->AddLineToPoint(
1638             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent)) ,
1639             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent)) );
1640         path->AddLineToPoint(
1641             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent ) + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
1642             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent) - sin(angle / RAD2DEG) * FixedToInt(textAfter)) );
1643         path->AddLineToPoint(
1644             (int) (drawX + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
1645             (int) (drawY - sin(angle / RAD2DEG) * FixedToInt(textAfter)) );
1646
1647         m_graphicContext->FillPath( path , m_textBackgroundColour );
1648         delete path;
1649     }
1650 */
1651     x += (int)(sin(angle / RAD2DEG) * FixedToInt(ascent));
1652     y += (int)(cos(angle / RAD2DEG) * FixedToInt(ascent));
1653
1654     status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1655         IntToFixed(x) , IntToFixed(y) , &rect );
1656     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1657
1658     CGContextSaveGState(m_cgContext);
1659     CGContextTranslateCTM(m_cgContext, x, y);
1660     CGContextScaleCTM(m_cgContext, 1, -1);
1661     status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1662         IntToFixed(0) , IntToFixed(0) );
1663
1664     wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
1665
1666     CGContextRestoreGState(m_cgContext);
1667
1668     ::ATSUDisposeTextLayout(atsuLayout);
1669
1670 #if SIZEOF_WCHAR_T == 4
1671     free( ubuf );
1672 #endif
1673 }
1674
1675 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
1676                             wxDouble *descent, wxDouble *externalLeading ) const
1677 {
1678     wxCHECK_RET( !m_font.IsNull(), wxT("wxDC(cg)::DoGetTextExtent - no valid font set") );
1679
1680     OSStatus status = noErr;
1681
1682     ATSUTextLayout atsuLayout;
1683     UniCharCount chars = str.length();
1684     UniChar* ubuf = NULL;
1685
1686 #if SIZEOF_WCHAR_T == 4
1687     wxMBConvUTF16 converter;
1688 #if wxUSE_UNICODE
1689     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 );
1690     ubuf = (UniChar*) malloc( unicharlen + 2 );
1691     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 );
1692 #else
1693     const wxWCharBuffer wchar = str.wc_str( wxConvLocal );
1694     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
1695     ubuf = (UniChar*) malloc( unicharlen + 2 );
1696     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
1697 #endif
1698     chars = unicharlen / 2;
1699 #else
1700 #if wxUSE_UNICODE
1701     ubuf = (UniChar*) str.wc_str();
1702 #else
1703     wxWCharBuffer wchar = str.wc_str( wxConvLocal );
1704     chars = wxWcslen( wchar.data() );
1705     ubuf = (UniChar*) wchar.data();
1706 #endif
1707 #endif
1708
1709     ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
1710     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1711         &chars , &style , &atsuLayout );
1712
1713     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
1714
1715     ATSUTextMeasurement textBefore, textAfter;
1716     ATSUTextMeasurement textAscent, textDescent;
1717
1718     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1719         &textBefore , &textAfter, &textAscent , &textDescent );
1720
1721     if ( height )
1722         *height = FixedToInt(textAscent + textDescent);
1723     if ( descent )
1724         *descent = FixedToInt(textDescent);
1725     if ( externalLeading )
1726         *externalLeading = 0;
1727     if ( width )
1728         *width = FixedToInt(textAfter - textBefore);
1729
1730     ::ATSUDisposeTextLayout(atsuLayout);
1731 }
1732
1733 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
1734 {
1735     widths.Empty();
1736     widths.Add(0, text.length());
1737
1738     if (text.empty())
1739         return;
1740
1741     ATSUTextLayout atsuLayout;
1742     UniCharCount chars = text.length();
1743     UniChar* ubuf = NULL;
1744
1745 #if SIZEOF_WCHAR_T == 4
1746     wxMBConvUTF16 converter;
1747 #if wxUSE_UNICODE
1748     size_t unicharlen = converter.WC2MB( NULL , text.wc_str() , 0 );
1749     ubuf = (UniChar*) malloc( unicharlen + 2 );
1750     converter.WC2MB( (char*) ubuf , text.wc_str(), unicharlen + 2 );
1751 #else
1752     const wxWCharBuffer wchar = text.wc_str( wxConvLocal );
1753     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
1754     ubuf = (UniChar*) malloc( unicharlen + 2 );
1755     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
1756 #endif
1757     chars = unicharlen / 2;
1758 #else
1759 #if wxUSE_UNICODE
1760     ubuf = (UniChar*) text.wc_str();
1761 #else
1762     wxWCharBuffer wchar = text.wc_str( wxConvLocal );
1763     chars = wxWcslen( wchar.data() );
1764     ubuf = (UniChar*) wchar.data();
1765 #endif
1766 #endif
1767
1768     ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
1769     ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1770         &chars , &style , &atsuLayout );
1771
1772     for ( int pos = 0; pos < (int)chars; pos ++ )
1773     {
1774         unsigned long actualNumberOfBounds = 0;
1775         ATSTrapezoid glyphBounds;
1776
1777         // We get a single bound, since the text should only require one. If it requires more, there is an issue
1778         OSStatus result;
1779         result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
1780             kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
1781         if (result != noErr || actualNumberOfBounds != 1 )
1782             return;
1783
1784         widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
1785         //unsigned char uch = s[i];
1786     }
1787
1788     ::ATSUDisposeTextLayout(atsuLayout);
1789 }
1790
1791 void * wxMacCoreGraphicsContext::GetNativeContext()
1792 {
1793         return m_cgContext;
1794 }
1795
1796 // concatenates this transform with the current transform of this context
1797 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix* matrix )
1798 {
1799 }
1800
1801 // sets the transform of this context
1802 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix* matrix )
1803 {
1804 }
1805
1806 // gets the matrix of this context
1807 void wxMacCoreGraphicsContext::GetTransform( wxGraphicsMatrix* matrix )
1808 {
1809 }
1810
1811 //
1812 // Renderer
1813 //
1814
1815 //-----------------------------------------------------------------------------
1816 // wxMacCoreGraphicsRenderer declaration
1817 //-----------------------------------------------------------------------------
1818
1819 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
1820 {
1821 public :
1822     wxMacCoreGraphicsRenderer() {}
1823
1824     virtual ~wxMacCoreGraphicsRenderer() {}
1825
1826         // Context
1827
1828         virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
1829
1830         virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
1831
1832         virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
1833
1834         virtual wxGraphicsContext * CreateContext( wxWindow* window );
1835
1836         // Path
1837
1838     virtual wxGraphicsPath * CreatePath();
1839
1840         // Matrix
1841
1842         virtual wxGraphicsMatrix * CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
1843                 wxDouble tx=0.0, wxDouble ty=0.0);
1844
1845
1846     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
1847
1848     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
1849
1850     // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
1851     virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
1852         const wxColour&c1, const wxColour&c2) ;
1853
1854     // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
1855     // with radius r and color cColor
1856     virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
1857         const wxColour &oColor, const wxColour &cColor) ;
1858
1859    // sets the font
1860     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
1861
1862 private :
1863     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
1864 } ;
1865
1866 //-----------------------------------------------------------------------------
1867 // wxMacCoreGraphicsRenderer implementation
1868 //-----------------------------------------------------------------------------
1869
1870 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
1871
1872 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
1873
1874 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
1875 {
1876         return &gs_MacCoreGraphicsRenderer;
1877 }
1878
1879 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc)
1880 {
1881    return new wxMacCoreGraphicsContext(this,(CGContextRef)dc.GetWindow()->MacGetCGContextRef() );
1882 }
1883
1884 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
1885 {
1886     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
1887 }
1888
1889
1890 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
1891 {
1892     return new wxMacCoreGraphicsContext(this,(WindowRef)window);
1893 }
1894
1895 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
1896 {
1897         return new wxMacCoreGraphicsContext(this, window );
1898 }
1899
1900 // Path
1901
1902 wxGraphicsPath * wxMacCoreGraphicsRenderer::CreatePath()
1903 {
1904         return new wxMacCoreGraphicsPath( this );
1905 }
1906
1907
1908 // Matrix
1909
1910 wxGraphicsMatrix * wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
1911         wxDouble tx, wxDouble ty)
1912
1913 {
1914     wxMacCoreGraphicsMatrix* m = new wxMacCoreGraphicsMatrix( this );
1915     m->Set( a,b,c,d,tx,ty ) ;
1916     return m;
1917 }
1918
1919 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
1920 {
1921     if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
1922         return wxNullGraphicsPen;
1923     else
1924     {
1925         wxGraphicsPen p;
1926         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
1927         return p;
1928     }
1929 }
1930
1931 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
1932 {
1933     if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
1934         return wxNullGraphicsBrush;
1935     else
1936     {
1937         wxGraphicsBrush p;
1938         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
1939         return p;
1940     }
1941 }
1942
1943 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
1944 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
1945     const wxColour&c1, const wxColour&c2)
1946 {
1947     wxGraphicsBrush p;
1948     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
1949     d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
1950     p.SetRefData(d);
1951     return p;
1952 }
1953
1954 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
1955 // with radius r and color cColor
1956 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
1957     const wxColour &oColor, const wxColour &cColor)
1958 {
1959     wxGraphicsBrush p;
1960     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
1961     d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
1962     p.SetRefData(d);
1963     return p;
1964 }
1965
1966 // sets the font
1967 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
1968 {
1969     if ( font.Ok() )
1970     {
1971         wxGraphicsFont p;
1972         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
1973         return p;
1974     }
1975     else
1976         return wxNullGraphicsFont;
1977 }
1978
1979
1980
1981 #endif // wxMAC_USE_CORE_GRAPHICS