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 #include "wx/graphics.h"
  15 #include "wx/private/graphics.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/dcclient.h"
  19     #include "wx/dcmemory.h"
  20     #include "wx/log.h"
  21     #include "wx/region.h"
  22     #include "wx/image.h"
  23     #include "wx/icon.h"
  24 #endif
  25
  26
  27 #ifdef __MSL__
  28     #if __MSL__ >= 0x6000
  29         #include "math.h"
  30         // in case our functions were defined outside std, we make it known all the same
  31         namespace std { }
  32         using namespace std;
  33     #endif
  34 #endif
  35
  36 #ifdef __WXMAC__
  37     #include "wx/mac/uma.h"
  38     #include "wx/mac/dcprint.h"
  39 #else
  40     #include "CoreServices/CoreServices.h"
  41     #include "ApplicationServices/ApplicationServices.h"
  42     #include "wx/mac/corefoundation/cfstring.h"
  43     #include "wx/cocoa/dcclient.h"
  44 #endif
  45
  46 #ifdef __WXCOCOA__
  47
  48 CGColorSpaceRef wxMacGetGenericRGBColorSpace()
  49 {
  50     static wxCFRef<CGColorSpaceRef> genericRGBColorSpace;
  51
  52     if (genericRGBColorSpace == NULL)
  53     {
  54         genericRGBColorSpace.reset( CGColorSpaceCreateWithName( kCGColorSpaceGenericRGB ) );
  55     }
  56
  57     return genericRGBColorSpace;
  58 }
  59
  60 int UMAGetSystemVersion()
  61 {
  62     return 0x1050;
  63 }
  64
  65
  66 #define wxMAC_USE_CORE_TEXT 1
  67
  68 #endif
  69
  70 //-----------------------------------------------------------------------------
  71 // constants
  72 //-----------------------------------------------------------------------------
  73
  74 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
  75 #ifndef M_PI
  76 const double M_PI = 3.14159265358979;
  77 #endif
  78 #endif
  79
  80 static const double RAD2DEG = 180.0 / M_PI;
  81
  82 //
  83 // Pen, Brushes and Fonts
  84 //
  85
  86 #pragma mark -
  87 #pragma mark wxMacCoreGraphicsPattern, ImagePattern, HatchPattern classes
  88
  89 OSStatus wxMacDrawCGImage(
  90                   CGContextRef    inContext,
  91                   const CGRect *  inBounds,
  92                   CGImageRef      inImage)
  93 {
  94 #if defined( __LP64__ ) || defined(__WXCOCOA__)
  95     // todo flip
  96     CGContextDrawImage(inContext, *inBounds, inImage );
  97     return noErr;
  98 #else
  99     return HIViewDrawCGImage( inContext, inBounds, inImage );
 100 #endif
 101 }
 102
 103 CGColorRef wxMacCreateCGColor( const wxColour& col )
 104 {
 105     CGColorRef retval = 0;
 106 #ifdef __WXMAC__
 107     retval = col.CreateCGColor();
 108 #else
 109 // TODO add conversion NSColor - CGColorRef (obj-c)
 110 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
 111     if ( CGColorCreateGenericRGB )
 112         retval = CGColorCreateGenericRGB( col.Red() / 255.0 , col.Green() / 255.0, col.Blue() / 255.0, col.Alpha() / 255.0 );
 113     else
 114 #endif
 115     {
 116         CGFloat components[4] = { col.Red() / 255.0, col.Green() / 255.0, col.Blue()  / 255.0, col.Alpha() / 255.0 } ;
 117         retval = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
 118     }
 119
 120 #endif
 121     return retval;
 122 }
 123
 124 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 && defined(wxMAC_USE_CORE_TEXT)
 125
 126 CTFontRef wxMacCreateCTFont( const wxFont& font )
 127 {
 128 #ifdef __WXMAC__
 129     return wxCFRetain((CTFontRef) font.MacGetCTFont());
 130 #else
 131     return CTFontCreateWithName( wxCFStringRef( font.GetFaceName(), wxLocale::GetSystemEncoding() ) , font.GetPointSize() , NULL );
 132 #endif
 133 }
 134
 135 #endif
 136
 137 // CGPattern wrapper class: always allocate on heap, never call destructor
 138
 139 class wxMacCoreGraphicsPattern
 140 {
 141 public :
 142     wxMacCoreGraphicsPattern() {}
 143
 144     // is guaranteed to be called only with a non-Null CGContextRef
 145     virtual void Render( CGContextRef ctxRef ) = 0;
 146
 147     operator CGPatternRef() const { return m_patternRef; }
 148
 149 protected :
 150     virtual ~wxMacCoreGraphicsPattern()
 151     {
 152         // as this is called only when the m_patternRef is been released;
 153         // don't release it again
 154     }
 155
 156     static void _Render( void *info, CGContextRef ctxRef )
 157     {
 158         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 159         if ( self && ctxRef )
 160             self->Render( ctxRef );
 161     }
 162
 163     static void _Dispose( void *info )
 164     {
 165         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 166         delete self;
 167     }
 168
 169     CGPatternRef m_patternRef;
 170
 171     static const CGPatternCallbacks ms_Callbacks;
 172 };
 173
 174 const CGPatternCallbacks wxMacCoreGraphicsPattern::ms_Callbacks = { 0, &wxMacCoreGraphicsPattern::_Render, &wxMacCoreGraphicsPattern::_Dispose };
 175
 176 class ImagePattern : public wxMacCoreGraphicsPattern
 177 {
 178 public :
 179     ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
 180     {
 181         wxASSERT( bmp && bmp->Ok() );
 182 #ifdef __WXMAC__
 183         Init( (CGImageRef) bmp->CreateCGImage() , transform );
 184 #endif
 185     }
 186
 187     // ImagePattern takes ownership of CGImageRef passed in
 188     ImagePattern( CGImageRef image , const CGAffineTransform& transform )
 189     {
 190         if ( image )
 191             CFRetain( image );
 192
 193         Init( image , transform );
 194     }
 195
 196     virtual void Render( CGContextRef ctxRef )
 197     {
 198         if (m_image != NULL)
 199             wxMacDrawCGImage( ctxRef, &m_imageBounds, m_image );
 200     }
 201
 202 protected :
 203     void Init( CGImageRef image, const CGAffineTransform& transform )
 204     {
 205         m_image = image;
 206         if ( m_image )
 207         {
 208             m_imageBounds = CGRectMake( 0.0, 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) );
 209             m_patternRef = CGPatternCreate(
 210                 this , m_imageBounds, transform ,
 211                 m_imageBounds.size.width, m_imageBounds.size.height,
 212                 kCGPatternTilingNoDistortion, true , &wxMacCoreGraphicsPattern::ms_Callbacks );
 213         }
 214     }
 215
 216     virtual ~ImagePattern()
 217     {
 218         if ( m_image )
 219             CGImageRelease( m_image );
 220     }
 221
 222     CGImageRef m_image;
 223     CGRect m_imageBounds;
 224 };
 225
 226 class HatchPattern : public wxMacCoreGraphicsPattern
 227 {
 228 public :
 229     HatchPattern( int hatchstyle, const CGAffineTransform& transform )
 230     {
 231         m_hatch = hatchstyle;
 232         m_imageBounds = CGRectMake( 0.0, 0.0, 8.0 , 8.0 );
 233         m_patternRef = CGPatternCreate(
 234             this , m_imageBounds, transform ,
 235             m_imageBounds.size.width, m_imageBounds.size.height,
 236             kCGPatternTilingNoDistortion, false , &wxMacCoreGraphicsPattern::ms_Callbacks );
 237     }
 238
 239     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 240     {
 241         CGContextStrokeLineSegments( ctxRef , pts , count );
 242     }
 243
 244     virtual void Render( CGContextRef ctxRef )
 245     {
 246         switch ( m_hatch )
 247         {
 248             case wxBDIAGONAL_HATCH :
 249                 {
 250                     CGPoint pts[] =
 251                     {
 252                     { 8.0 , 0.0 } , { 0.0 , 8.0 }
 253                     };
 254                     StrokeLineSegments( ctxRef , pts , 2 );
 255                 }
 256                 break;
 257
 258             case wxCROSSDIAG_HATCH :
 259                 {
 260                     CGPoint pts[] =
 261                     {
 262                         { 0.0 , 0.0 } , { 8.0 , 8.0 } ,
 263                         { 8.0 , 0.0 } , { 0.0 , 8.0 }
 264                     };
 265                     StrokeLineSegments( ctxRef , pts , 4 );
 266                 }
 267                 break;
 268
 269             case wxFDIAGONAL_HATCH :
 270                 {
 271                     CGPoint pts[] =
 272                     {
 273                     { 0.0 , 0.0 } , { 8.0 , 8.0 }
 274                     };
 275                     StrokeLineSegments( ctxRef , pts , 2 );
 276                 }
 277                 break;
 278
 279             case wxCROSS_HATCH :
 280                 {
 281                     CGPoint pts[] =
 282                     {
 283                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 284                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 285                     };
 286                     StrokeLineSegments( ctxRef , pts , 4 );
 287                 }
 288                 break;
 289
 290             case wxHORIZONTAL_HATCH :
 291                 {
 292                     CGPoint pts[] =
 293                     {
 294                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 295                     };
 296                     StrokeLineSegments( ctxRef , pts , 2 );
 297                 }
 298                 break;
 299
 300             case wxVERTICAL_HATCH :
 301                 {
 302                     CGPoint pts[] =
 303                     {
 304                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 305                     };
 306                     StrokeLineSegments( ctxRef , pts , 2 );
 307                 }
 308                 break;
 309
 310             default:
 311                 break;
 312         }
 313     }
 314
 315 protected :
 316     virtual ~HatchPattern() {}
 317
 318     CGRect      m_imageBounds;
 319     int         m_hatch;
 320 };
 321
 322 class wxMacCoreGraphicsPenData : public wxGraphicsObjectRefData
 323 {
 324 public:
 325     wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
 326     ~wxMacCoreGraphicsPenData();
 327
 328     void Init();
 329     virtual void Apply( wxGraphicsContext* context );
 330     virtual wxDouble GetWidth() { return m_width; }
 331
 332 protected :
 333     CGLineCap m_cap;
 334     wxCFRef<CGColorRef> m_color;
 335     wxCFRef<CGColorSpaceRef> m_colorSpace;
 336
 337     CGLineJoin m_join;
 338     CGFloat m_width;
 339
 340     int m_count;
 341     const CGFloat *m_lengths;
 342     CGFloat *m_userLengths;
 343
 344
 345     bool m_isPattern;
 346     wxCFRef<CGPatternRef> m_pattern;
 347     CGFloat* m_patternColorComponents;
 348 };
 349
 350 wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) :
 351     wxGraphicsObjectRefData( renderer )
 352 {
 353     Init();
 354
 355     m_color.reset( wxMacCreateCGColor( pen.GetColour() ) ) ;
 356
 357     // TODO: * m_dc->m_scaleX
 358     m_width = pen.GetWidth();
 359     if (m_width <= 0.0)
 360         m_width = 0.1;
 361
 362     switch ( pen.GetCap() )
 363     {
 364         case wxCAP_ROUND :
 365             m_cap = kCGLineCapRound;
 366             break;
 367
 368         case wxCAP_PROJECTING :
 369             m_cap = kCGLineCapSquare;
 370             break;
 371
 372         case wxCAP_BUTT :
 373             m_cap = kCGLineCapButt;
 374             break;
 375
 376         default :
 377             m_cap = kCGLineCapButt;
 378             break;
 379     }
 380
 381     switch ( pen.GetJoin() )
 382     {
 383         case wxJOIN_BEVEL :
 384             m_join = kCGLineJoinBevel;
 385             break;
 386
 387         case wxJOIN_MITER :
 388             m_join = kCGLineJoinMiter;
 389             break;
 390
 391         case wxJOIN_ROUND :
 392             m_join = kCGLineJoinRound;
 393             break;
 394
 395         default :
 396             m_join = kCGLineJoinMiter;
 397             break;
 398     }
 399
 400     const CGFloat dashUnit = m_width < 1.0 ? 1.0 : m_width;
 401
 402     const CGFloat dotted[] = { dashUnit , dashUnit + 2.0 };
 403     static const CGFloat short_dashed[] = { 9.0 , 6.0 };
 404     static const CGFloat dashed[] = { 19.0 , 9.0 };
 405     static const CGFloat dotted_dashed[] = { 9.0 , 6.0 , 3.0 , 3.0 };
 406
 407     switch ( pen.GetStyle() )
 408     {
 409         case wxSOLID :
 410             break;
 411
 412         case wxDOT :
 413             m_count = WXSIZEOF(dotted);
 414             m_userLengths = new CGFloat[ m_count ] ;
 415             memcpy( m_userLengths, dotted, sizeof(dotted) );
 416             m_lengths = m_userLengths;
 417             break;
 418
 419         case wxLONG_DASH :
 420             m_count = WXSIZEOF(dashed);
 421             m_lengths = dashed;
 422             break;
 423
 424         case wxSHORT_DASH :
 425             m_count = WXSIZEOF(short_dashed);
 426             m_lengths = short_dashed;
 427             break;
 428
 429         case wxDOT_DASH :
 430             m_count = WXSIZEOF(dotted_dashed);
 431             m_lengths = dotted_dashed;
 432             break;
 433
 434         case wxUSER_DASH :
 435             wxDash *dashes;
 436             m_count = pen.GetDashes( &dashes );
 437             if ((dashes != NULL) && (m_count > 0))
 438             {
 439                 m_userLengths = new CGFloat[m_count];
 440                 for ( int i = 0; i < m_count; ++i )
 441                 {
 442                     m_userLengths[i] = dashes[i] * dashUnit;
 443
 444                     if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
 445                         m_userLengths[i] = dashUnit + 2.0;
 446                     else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
 447                         m_userLengths[i] = dashUnit;
 448                 }
 449             }
 450             m_lengths = m_userLengths;
 451             break;
 452
 453         case wxSTIPPLE :
 454             {
 455                 wxBitmap* bmp = pen.GetStipple();
 456                 if ( bmp && bmp->Ok() )
 457                 {
 458                     m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 459                     m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 460                     m_patternColorComponents = new CGFloat[1] ;
 461                     m_patternColorComponents[0] = 1.0;
 462                     m_isPattern = true;
 463                 }
 464             }
 465             break;
 466
 467         default :
 468             {
 469                 m_isPattern = true;
 470                 m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 471                 m_pattern.reset( (CGPatternRef) *( new HatchPattern( pen.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 472                 m_patternColorComponents = new CGFloat[4] ;
 473                 m_patternColorComponents[0] = pen.GetColour().Red() / 255.0;
 474                 m_patternColorComponents[1] = pen.GetColour().Green() / 255.0;
 475                 m_patternColorComponents[2] = pen.GetColour().Blue() / 255.0;
 476                 m_patternColorComponents[3] =  pen.GetColour().Alpha() / 255.0;
 477             }
 478             break;
 479     }
 480     if ((m_lengths != NULL) && (m_count > 0))
 481     {
 482         // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 483         m_cap = kCGLineCapButt;
 484     }
 485 }
 486
 487 wxMacCoreGraphicsPenData::~wxMacCoreGraphicsPenData()
 488 {
 489     delete[] m_userLengths;
 490     delete[] m_patternColorComponents;
 491 }
 492
 493 void wxMacCoreGraphicsPenData::Init()
 494 {
 495     m_lengths = NULL;
 496     m_userLengths = NULL;
 497     m_width = 0;
 498     m_count = 0;
 499     m_patternColorComponents = NULL;
 500     m_isPattern = false;
 501 }
 502
 503 void wxMacCoreGraphicsPenData::Apply( wxGraphicsContext* context )
 504 {
 505     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 506     CGContextSetLineWidth( cg , m_width );
 507     CGContextSetLineJoin( cg , m_join );
 508
 509     CGContextSetLineDash( cg , 0 , m_lengths , m_count );
 510     CGContextSetLineCap( cg , m_cap );
 511
 512     if ( m_isPattern )
 513     {
 514         CGAffineTransform matrix = CGContextGetCTM( cg );
 515         CGContextSetPatternPhase( cg, CGSizeMake(matrix.tx, matrix.ty) );
 516         CGContextSetStrokeColorSpace( cg , m_colorSpace );
 517         CGContextSetStrokePattern( cg, m_pattern , m_patternColorComponents );
 518     }
 519     else
 520     {
 521         if ( context->GetLogicalFunction() == wxINVERT || context->GetLogicalFunction() == wxXOR )
 522         {
 523             CGContextSetRGBStrokeColor( cg , 1.0, 1.0 , 1.0, 1.0 );
 524         }
 525         else
 526             CGContextSetStrokeColorWithColor( cg , m_color );
 527     }
 528 }
 529
 530 //
 531 // Brush
 532 //
 533
 534 static const char *gs_stripedback_xpm[] = {
 535 /* columns rows colors chars-per-pixel */
 536 "4 4 2 1",
 537 ". c #F0F0F0",
 538 "X c #ECECEC",
 539 /* pixels */
 540 "....",
 541 "....",
 542 "XXXX",
 543 "XXXX"
 544 };
 545
 546 wxBitmap gs_stripedback_bmp( wxImage( (const char* const* ) gs_stripedback_xpm  ), -1 ) ;
 547
 548 // make sure we all use one class for all conversions from wx to native colour
 549
 550 class wxMacCoreGraphicsColour
 551 {
 552     public:
 553         wxMacCoreGraphicsColour();
 554         wxMacCoreGraphicsColour(const wxBrush &brush);
 555         ~wxMacCoreGraphicsColour();
 556
 557         void Apply( CGContextRef cgContext );
 558     protected:
 559         void Init();
 560         wxCFRef<CGColorRef> m_color;
 561         wxCFRef<CGColorSpaceRef> m_colorSpace;
 562
 563         bool m_isPattern;
 564         wxCFRef<CGPatternRef> m_pattern;
 565         CGFloat* m_patternColorComponents;
 566 } ;
 567
 568 wxMacCoreGraphicsColour::~wxMacCoreGraphicsColour()
 569 {
 570     delete[] m_patternColorComponents;
 571 }
 572
 573 void wxMacCoreGraphicsColour::Init()
 574 {
 575     m_isPattern = false;
 576     m_patternColorComponents = NULL;
 577 }
 578
 579 void wxMacCoreGraphicsColour::Apply( CGContextRef cgContext )
 580 {
 581     if ( m_isPattern )
 582     {
 583         CGAffineTransform matrix = CGContextGetCTM( cgContext );
 584         CGContextSetPatternPhase( cgContext, CGSizeMake(matrix.tx, matrix.ty) );
 585         CGContextSetFillColorSpace( cgContext , m_colorSpace );
 586         CGContextSetFillPattern( cgContext, m_pattern , m_patternColorComponents );
 587     }
 588     else
 589     {
 590         CGContextSetFillColorWithColor( cgContext, m_color );
 591     }
 592 }
 593
 594 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour()
 595 {
 596     Init();
 597 }
 598
 599 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour( const wxBrush &brush )
 600 {
 601     Init();
 602     if ( brush.GetStyle() == wxSOLID )
 603     {
 604         m_color.reset( wxMacCreateCGColor( brush.GetColour() ));
 605     }
 606     else if ( brush.IsHatch() )
 607     {
 608         m_isPattern = true;
 609         m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 610         m_pattern.reset( (CGPatternRef) *( new HatchPattern( brush.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 611
 612         m_patternColorComponents = new CGFloat[4] ;
 613         m_patternColorComponents[0] = brush.GetColour().Red() / 255.0;
 614         m_patternColorComponents[1] = brush.GetColour().Green() / 255.0;
 615         m_patternColorComponents[2] = brush.GetColour().Blue() / 255.0;
 616         m_patternColorComponents[3] = brush.GetColour().Alpha() / 255.0;
 617     }
 618     else
 619     {
 620         // now brush is a bitmap
 621         wxBitmap* bmp = brush.GetStipple();
 622         if ( bmp && bmp->Ok() )
 623         {
 624             m_isPattern = true;
 625             m_patternColorComponents = new CGFloat[1] ;
 626             m_patternColorComponents[0] = 1.0;
 627             m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 628             m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 629         }
 630     }
 631 }
 632
 633 class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
 634 {
 635 public:
 636     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
 637     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
 638     ~wxMacCoreGraphicsBrushData ();
 639
 640     virtual void Apply( wxGraphicsContext* context );
 641     void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 642         const wxColour&c1, const wxColour&c2 );
 643     void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 644     const wxColour &oColor, const wxColour &cColor );
 645
 646     virtual bool IsShading() { return m_isShading; }
 647     CGShadingRef GetShading() { return m_shading; }
 648 protected:
 649     CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 );
 650     static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
 651     virtual void Init();
 652
 653     wxMacCoreGraphicsColour m_cgColor;
 654
 655     bool m_isShading;
 656     CGFunctionRef m_gradientFunction;
 657     CGShadingRef m_shading;
 658     CGFloat *m_gradientComponents;
 659 };
 660
 661 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
 662 {
 663     Init();
 664 }
 665
 666 void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 667         const wxColour&c1, const wxColour&c2 )
 668 {
 669     m_gradientFunction = CreateGradientFunction( c1, c2 );
 670     m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake(x1,y1), CGPointMake(x2,y2), m_gradientFunction, true, true ) ;
 671     m_isShading = true ;
 672 }
 673
 674 void wxMacCoreGraphicsBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 675     const wxColour &oColor, const wxColour &cColor )
 676 {
 677     m_gradientFunction = CreateGradientFunction( oColor, cColor );
 678     m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake(xo,yo), 0, CGPointMake(xc,yc), radius, m_gradientFunction, true, true ) ;
 679     m_isShading = true ;
 680 }
 681
 682 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer ),
 683     m_cgColor( brush )
 684 {
 685     Init();
 686
 687 }
 688
 689 wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
 690 {
 691     if ( m_shading )
 692         CGShadingRelease(m_shading);
 693
 694     if( m_gradientFunction )
 695         CGFunctionRelease(m_gradientFunction);
 696
 697     delete[] m_gradientComponents;
 698 }
 699
 700 void wxMacCoreGraphicsBrushData::Init()
 701 {
 702     m_gradientFunction = NULL;
 703     m_shading = NULL;
 704     m_gradientComponents = NULL;
 705     m_isShading = false;
 706 }
 707
 708 void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
 709 {
 710     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 711
 712     if ( m_isShading )
 713     {
 714         // nothing to set as shades are processed by clipping using the path and filling
 715     }
 716     else
 717     {
 718         m_cgColor.Apply( cg );
 719     }
 720 }
 721
 722 void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
 723 {
 724     CGFloat* colors = (CGFloat*) info ;
 725     CGFloat f = *in;
 726     for( int i = 0 ; i < 4 ; ++i )
 727     {
 728         out[i] = colors[i] + ( colors[4+i] - colors[i] ) * f;
 729     }
 730 }
 731
 732 CGFunctionRef wxMacCoreGraphicsBrushData::CreateGradientFunction( const wxColour& c1, const wxColour& c2 )
 733 {
 734     static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL };
 735     static const CGFloat input_value_range [2] = { 0, 1 };
 736     static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 };
 737     m_gradientComponents = new CGFloat[8] ;
 738     m_gradientComponents[0] = c1.Red() / 255.0;
 739     m_gradientComponents[1] = c1.Green() / 255.0;
 740     m_gradientComponents[2] = c1.Blue() / 255.0;
 741     m_gradientComponents[3] = c1.Alpha() / 255.0;
 742     m_gradientComponents[4] = c2.Red() / 255.0;
 743     m_gradientComponents[5] = c2.Green() / 255.0;
 744     m_gradientComponents[6] = c2.Blue() / 255.0;
 745     m_gradientComponents[7] = c2.Alpha() / 255.0;
 746
 747     return CGFunctionCreate ( m_gradientComponents,  1,
 748                             input_value_range,
 749                             4,
 750                             output_value_ranges,
 751                             &callbacks);
 752 }
 753
 754 //
 755 // Font
 756 //
 757
 758 class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
 759 {
 760 public:
 761     wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
 762     ~wxMacCoreGraphicsFontData();
 763
 764 #if wxMAC_USE_ATSU_TEXT
 765     virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
 766 #endif
 767 #if wxMAC_USE_CORE_TEXT
 768     CTFontRef GetCTFont() const { return m_ctFont ; }
 769 #endif
 770     wxColour GetColour() const { return m_colour ; }
 771
 772     bool GetUnderlined() const { return m_underlined ; }
 773 private :
 774     wxColour m_colour;
 775     bool m_underlined;
 776 #if wxMAC_USE_ATSU_TEXT
 777     ATSUStyle m_macATSUIStyle;
 778 #endif
 779 #if wxMAC_USE_CORE_TEXT
 780     wxCFRef< CTFontRef > m_ctFont;
 781 #endif
 782 };
 783
 784 wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
 785 {
 786     m_colour = col;
 787     m_underlined = font.GetUnderlined();
 788
 789 #if wxMAC_USE_CORE_TEXT
 790     m_ctFont.reset( wxMacCreateCTFont( font ) );
 791 #endif
 792 #if wxMAC_USE_ATSU_TEXT
 793     OSStatus status = noErr;
 794     m_macATSUIStyle = NULL;
 795
 796     status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
 797
 798     wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
 799
 800     // we need the scale here ...
 801
 802     Fixed atsuSize = IntToFixed( int( 1 * font.MacGetFontSize()) );
 803     RGBColor atsuColor ;
 804     col.GetRGBColor( &atsuColor );
 805     ATSUAttributeTag atsuTags[] =
 806     {
 807             kATSUSizeTag ,
 808             kATSUColorTag ,
 809     };
 810     ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 811     {
 812             sizeof( Fixed ) ,
 813             sizeof( RGBColor ) ,
 814     };
 815     ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 816     {
 817             &atsuSize ,
 818             &atsuColor ,
 819     };
 820
 821     status = ::ATSUSetAttributes(
 822         m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
 823         atsuTags, atsuSizes, atsuValues);
 824
 825     wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
 826 #endif
 827 #if wxMAC_USE_CG_TEXT
 828 #endif
 829 }
 830
 831 wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
 832 {
 833 #if wxMAC_USE_CORE_TEXT
 834 #endif
 835 #if wxMAC_USE_ATSU_TEXT
 836     if ( m_macATSUIStyle )
 837     {
 838         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 839         m_macATSUIStyle = NULL;
 840     }
 841 #endif
 842 #if wxMAC_USE_CG_TEXT
 843 #endif
 844 }
 845
 846 class wxMacCoreGraphicsBitmapData : public wxGraphicsObjectRefData
 847 {
 848 public:
 849     wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap );
 850     ~wxMacCoreGraphicsBitmapData();
 851
 852     virtual CGImageRef GetBitmap() { return m_bitmap; }
 853 private :
 854     CGImageRef m_bitmap;
 855 };
 856
 857 wxMacCoreGraphicsBitmapData::wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap ) : wxGraphicsObjectRefData( renderer )
 858 {
 859     m_bitmap = bitmap;
 860 }
 861
 862 wxMacCoreGraphicsBitmapData::~wxMacCoreGraphicsBitmapData()
 863 {
 864     CGImageRelease( m_bitmap );
 865 }
 866
 867 //
 868 // Graphics Matrix
 869 //
 870
 871 //-----------------------------------------------------------------------------
 872 // wxMacCoreGraphicsMatrix declaration
 873 //-----------------------------------------------------------------------------
 874
 875 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
 876 {
 877 public :
 878     wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
 879
 880     virtual ~wxMacCoreGraphicsMatrixData() ;
 881
 882     virtual wxGraphicsObjectRefData *Clone() const ;
 883
 884     // concatenates the matrix
 885     virtual void Concat( const wxGraphicsMatrixData *t );
 886
 887     // sets the matrix to the respective values
 888     virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
 889         wxDouble tx=0.0, wxDouble ty=0.0);
 890
 891     // gets the component valuess of the matrix
 892     virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL,  wxDouble* c=NULL,
 893                      wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
 894
 895     // makes this the inverse matrix
 896     virtual void Invert();
 897
 898     // returns true if the elements of the transformation matrix are equal ?
 899     virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
 900
 901     // return true if this is the identity matrix
 902     virtual bool IsIdentity() const;
 903
 904     //
 905     // transformation
 906     //
 907
 908     // add the translation to this matrix
 909     virtual void Translate( wxDouble dx , wxDouble dy );
 910
 911     // add the scale to this matrix
 912     virtual void Scale( wxDouble xScale , wxDouble yScale );
 913
 914     // add the rotation to this matrix (radians)
 915     virtual void Rotate( wxDouble angle );
 916
 917     //
 918     // apply the transforms
 919     //
 920
 921     // applies that matrix to the point
 922     virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
 923
 924     // applies the matrix except for translations
 925     virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
 926
 927     // returns the native representation
 928     virtual void * GetNativeMatrix() const;
 929
 930 private :
 931     CGAffineTransform m_matrix;
 932 } ;
 933
 934 //-----------------------------------------------------------------------------
 935 // wxMacCoreGraphicsMatrix implementation
 936 //-----------------------------------------------------------------------------
 937
 938 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
 939 {
 940 }
 941
 942 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
 943 {
 944 }
 945
 946 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
 947 {
 948     wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
 949     m->m_matrix = m_matrix ;
 950     return m;
 951 }
 952
 953 // concatenates the matrix
 954 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
 955 {
 956     m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
 957 }
 958
 959 // sets the matrix to the respective values
 960 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
 961     wxDouble tx, wxDouble ty)
 962 {
 963     m_matrix = CGAffineTransformMake(a,b,c,d,tx,ty);
 964 }
 965
 966 // gets the component valuess of the matrix
 967 void wxMacCoreGraphicsMatrixData::Get(wxDouble* a, wxDouble* b,  wxDouble* c,
 968                                       wxDouble* d, wxDouble* tx, wxDouble* ty) const
 969 {
 970     if (a)  *a = m_matrix.a;
 971     if (b)  *b = m_matrix.b;
 972     if (c)  *c = m_matrix.c;
 973     if (d)  *d = m_matrix.d;
 974     if (tx) *tx= m_matrix.tx;
 975     if (ty) *ty= m_matrix.ty;
 976 }
 977
 978 // makes this the inverse matrix
 979 void wxMacCoreGraphicsMatrixData::Invert()
 980 {
 981     m_matrix = CGAffineTransformInvert( m_matrix );
 982 }
 983
 984 // returns true if the elements of the transformation matrix are equal ?
 985 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
 986 {
 987     return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
 988 }
 989
 990 // return true if this is the identity matrix
 991 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
 992 {
 993     return ( m_matrix.a == 1 && m_matrix.d == 1 &&
 994         m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
 995 }
 996
 997 //
 998 // transformation
 999 //
1000
1001 // add the translation to this matrix
1002 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
1003 {
1004     m_matrix = CGAffineTransformTranslate( m_matrix, dx, dy);
1005 }
1006
1007 // add the scale to this matrix
1008 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1009 {
1010     m_matrix = CGAffineTransformScale( m_matrix, xScale, yScale);
1011 }
1012
1013 // add the rotation to this matrix (radians)
1014 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
1015 {
1016     m_matrix = CGAffineTransformRotate( m_matrix, angle);
1017 }
1018
1019 //
1020 // apply the transforms
1021 //
1022
1023 // applies that matrix to the point
1024 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1025 {
1026     CGPoint pt = CGPointApplyAffineTransform( CGPointMake(*x,*y), m_matrix);
1027
1028     *x = pt.x;
1029     *y = pt.y;
1030 }
1031
1032 // applies the matrix except for translations
1033 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1034 {
1035     CGSize sz = CGSizeApplyAffineTransform( CGSizeMake(*dx,*dy) , m_matrix );
1036     *dx = sz.width;
1037     *dy = sz.height;
1038 }
1039
1040 // returns the native representation
1041 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
1042 {
1043     return (void*) &m_matrix;
1044 }
1045
1046 //
1047 // Graphics Path
1048 //
1049
1050 //-----------------------------------------------------------------------------
1051 // wxMacCoreGraphicsPath declaration
1052 //-----------------------------------------------------------------------------
1053
1054 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
1055 {
1056 public :
1057     wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
1058
1059     ~wxMacCoreGraphicsPathData();
1060
1061     virtual wxGraphicsObjectRefData *Clone() const;
1062
1063     // begins a new subpath at (x,y)
1064     virtual void MoveToPoint( wxDouble x, wxDouble y );
1065
1066     // adds a straight line from the current point to (x,y)
1067     virtual void AddLineToPoint( wxDouble x, wxDouble y );
1068
1069     // adds a cubic Bezier curve from the current point, using two control points and an end point
1070     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
1071
1072     // closes the current sub-path
1073     virtual void CloseSubpath();
1074
1075     // gets the last point of the current path, (0,0) if not yet set
1076     virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
1077
1078     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1079     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
1080
1081     //
1082     // These are convenience functions which - if not available natively will be assembled
1083     // using the primitives from above
1084     //
1085
1086     // adds a quadratic Bezier curve from the current point, using a control point and an end point
1087     virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
1088
1089     // appends a rectangle as a new closed subpath
1090     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1091
1092     // appends an ellipsis as a new closed subpath fitting the passed rectangle
1093     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1094
1095     // 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)
1096     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1097
1098     // adds another path
1099     virtual void AddPath( const wxGraphicsPathData* path );
1100
1101     // returns the native path
1102     virtual void * GetNativePath() const { return m_path; }
1103
1104     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1105     virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1106
1107     // transforms each point of this path by the matrix
1108     virtual void Transform( const wxGraphicsMatrixData* matrix );
1109
1110     // gets the bounding box enclosing all points (possibly including control points)
1111     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
1112
1113     virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxODDEVEN_RULE) const;
1114 private :
1115     CGMutablePathRef m_path;
1116 };
1117
1118 //-----------------------------------------------------------------------------
1119 // wxMacCoreGraphicsPath implementation
1120 //-----------------------------------------------------------------------------
1121
1122 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1123 {
1124     if ( path )
1125         m_path = path;
1126     else
1127         m_path = CGPathCreateMutable();
1128 }
1129
1130 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1131 {
1132     CGPathRelease( m_path );
1133 }
1134
1135 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1136 {
1137     wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1138     return clone ;
1139 }
1140
1141
1142 // opens (starts) a new subpath
1143 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1144 {
1145     CGPathMoveToPoint( m_path , NULL , x1 , y1 );
1146 }
1147
1148 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1149 {
1150     CGPathAddLineToPoint( m_path , NULL , x1 , y1 );
1151 }
1152
1153 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1154 {
1155     CGPathAddCurveToPoint( m_path , NULL , cx1 , cy1 , cx2, cy2, x , y );
1156 }
1157
1158 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1159 {
1160     CGPathAddQuadCurveToPoint( m_path , NULL , cx1 , cy1 , x , y );
1161 }
1162
1163 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1164 {
1165     CGRect cgRect = { { x , y } , { w , h } };
1166     CGPathAddRect( m_path , NULL , cgRect );
1167 }
1168
1169 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1170 {
1171     CGPathAddArc( m_path , NULL , x , y , r , 0.0 , 2 * M_PI , true );
1172 }
1173
1174 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1175 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1176 {
1177     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1178     CGPathAddArc( m_path, NULL , x, y, r, startAngle, endAngle, !clockwise);
1179 }
1180
1181 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1182 {
1183     CGPathAddArcToPoint( m_path, NULL , x1, y1, x2, y2, r);
1184 }
1185
1186 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1187 {
1188     CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1189 }
1190
1191 // closes the current subpath
1192 void wxMacCoreGraphicsPathData::CloseSubpath()
1193 {
1194     CGPathCloseSubpath( m_path );
1195 }
1196
1197 // gets the last point of the current path, (0,0) if not yet set
1198 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1199 {
1200     CGPoint p = CGPathGetCurrentPoint( m_path );
1201     *x = p.x;
1202     *y = p.y;
1203 }
1204
1205 // transforms each point of this path by the matrix
1206 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1207 {
1208     CGMutablePathRef p = CGPathCreateMutable() ;
1209     CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1210     CGPathRelease( m_path );
1211     m_path = p;
1212 }
1213
1214 // gets the bounding box enclosing all points (possibly including control points)
1215 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1216 {
1217     CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1218     *x = bounds.origin.x;
1219     *y = bounds.origin.y;
1220     *w = bounds.size.width;
1221     *h = bounds.size.height;
1222 }
1223
1224 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, int fillStyle) const
1225 {
1226     return CGPathContainsPoint( m_path, NULL, CGPointMake(x,y), fillStyle == wxODDEVEN_RULE );
1227 }
1228
1229 //
1230 // Graphics Context
1231 //
1232
1233 //-----------------------------------------------------------------------------
1234 // wxMacCoreGraphicsContext declaration
1235 //-----------------------------------------------------------------------------
1236
1237 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1238 {
1239 public:
1240     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1241
1242     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1243
1244     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1245
1246     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1247
1248     wxMacCoreGraphicsContext();
1249
1250     ~wxMacCoreGraphicsContext();
1251
1252     void Init();
1253
1254     // returns the size of the graphics context in device coordinates
1255     virtual void GetSize( wxDouble* width, wxDouble* height);
1256
1257     virtual void StartPage( wxDouble width, wxDouble height );
1258
1259     virtual void EndPage();
1260
1261     virtual void Flush();
1262
1263     // push the current state of the context, ie the transformation matrix on a stack
1264     virtual void PushState();
1265
1266     // pops a stored state from the stack
1267     virtual void PopState();
1268
1269     // clips drawings to the region
1270     virtual void Clip( const wxRegion &region );
1271
1272     // clips drawings to the rect
1273     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1274
1275     // resets the clipping to original extent
1276     virtual void ResetClip();
1277
1278     virtual void * GetNativeContext();
1279
1280     bool SetLogicalFunction( int function );
1281     //
1282     // transformation
1283     //
1284
1285     // translate
1286     virtual void Translate( wxDouble dx , wxDouble dy );
1287
1288     // scale
1289     virtual void Scale( wxDouble xScale , wxDouble yScale );
1290
1291     // rotate (radians)
1292     virtual void Rotate( wxDouble angle );
1293
1294     // concatenates this transform with the current transform of this context
1295     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1296
1297     // sets the transform of this context
1298     virtual void SetTransform( const wxGraphicsMatrix& matrix );
1299
1300     // gets the matrix of this context
1301     virtual wxGraphicsMatrix GetTransform() const;
1302     //
1303     // setting the paint
1304     //
1305
1306     // strokes along a path with the current pen
1307     virtual void StrokePath( const wxGraphicsPath &path );
1308
1309     // fills a path with the current brush
1310     virtual void FillPath( const wxGraphicsPath &path, int fillStyle = wxODDEVEN_RULE );
1311
1312     // draws a path by first filling and then stroking
1313     virtual void DrawPath( const wxGraphicsPath &path, int fillStyle = wxODDEVEN_RULE );
1314
1315     virtual bool ShouldOffset() const
1316     {
1317         int penwidth = 0 ;
1318         if ( !m_pen.IsNull() )
1319         {
1320             penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1321             if ( penwidth == 0 )
1322                 penwidth = 1;
1323         }
1324         return ( penwidth % 2 ) == 1;
1325     }
1326     //
1327     // text
1328     //
1329
1330     virtual void DrawText( const wxString &str, wxDouble x, wxDouble y );
1331
1332     virtual void DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1333
1334     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1335         wxDouble *descent, wxDouble *externalLeading ) const;
1336
1337     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1338
1339     //
1340     // image support
1341     //
1342
1343     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1344
1345     virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1346
1347     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1348
1349     void SetNativeContext( CGContextRef cg );
1350
1351     DECLARE_NO_COPY_CLASS(wxMacCoreGraphicsContext)
1352     DECLARE_DYNAMIC_CLASS(wxMacCoreGraphicsContext)
1353
1354 private:
1355     void EnsureIsValid();
1356
1357     CGContextRef m_cgContext;
1358     WindowRef m_windowRef;
1359     bool m_releaseContext;
1360     CGAffineTransform m_windowTransform;
1361     wxDouble m_width;
1362     wxDouble m_height;
1363
1364     wxCFRef<HIShapeRef> m_clipRgn;
1365 };
1366
1367 //-----------------------------------------------------------------------------
1368 // device context implementation
1369 //
1370 // more and more of the dc functionality should be implemented by calling
1371 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1372 // also coordinate conversions should be moved to native matrix ops
1373 //-----------------------------------------------------------------------------
1374
1375 // we always stock two context states, one at entry, to be able to preserve the
1376 // state we were called with, the other one after changing to HI Graphics orientation
1377 // (this one is used for getting back clippings etc)
1378
1379 //-----------------------------------------------------------------------------
1380 // wxMacCoreGraphicsContext implementation
1381 //-----------------------------------------------------------------------------
1382
1383 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1384
1385 class wxQuartzOffsetHelper
1386 {
1387 public :
1388     wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1389     {
1390         m_cg = cg;
1391         m_offset = offset;
1392         if ( m_offset )
1393             CGContextTranslateCTM( m_cg, 0.5, 0.5 );
1394     }
1395     ~wxQuartzOffsetHelper( )
1396     {
1397         if ( m_offset )
1398             CGContextTranslateCTM( m_cg, -0.5, -0.5 );
1399     }
1400 public :
1401     CGContextRef m_cg;
1402     bool m_offset;
1403 } ;
1404
1405 void wxMacCoreGraphicsContext::Init()
1406 {
1407     m_cgContext = NULL;
1408     m_releaseContext = false;
1409     m_windowRef = NULL;
1410     m_width = 0;
1411     m_height = 0;
1412     CGRect r = CGRectMake(0,0,0,0);
1413     m_clipRgn.reset(HIShapeCreateWithRect(&r));
1414 }
1415
1416 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer)
1417 {
1418     Init();
1419     SetNativeContext(cgcontext);
1420     m_width = width;
1421     m_height = height;
1422 }
1423
1424 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1425 {
1426     Init();
1427     m_windowRef = window;
1428 }
1429
1430 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1431 {
1432     Init();
1433
1434     int originX , originY;
1435     originX = originY = 0;
1436
1437     Rect bounds = { 0,0,0,0 };
1438 #if defined( __LP64__ ) || defined(__WXCOCOA__)
1439 #else
1440     m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1441     window->MacWindowToRootWindow( &originX , &originY );
1442     GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1443 #endif
1444     m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1445     m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1446     m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1447 }
1448
1449 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1450 {
1451     Init();
1452 }
1453
1454 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1455 {
1456     Init();
1457     wxLogDebug(wxT("Illegal Constructor called"));
1458 }
1459
1460 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1461 {
1462     SetNativeContext(NULL);
1463 }
1464
1465 void wxMacCoreGraphicsContext::GetSize( wxDouble* width, wxDouble* height)
1466 {
1467     *width = m_width;
1468     *height = m_height;
1469 }
1470
1471
1472 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1473 {
1474     CGRect r;
1475     if ( width != 0 && height != 0)
1476         r = CGRectMake( 0 , 0 , width  , height );
1477     else
1478         r = CGRectMake( 0 , 0 , m_width  , m_height );
1479
1480     CGContextBeginPage(m_cgContext,  &r );
1481 //    CGContextTranslateCTM( m_cgContext , 0 ,  height == 0 ? m_height : height );
1482 //    CGContextScaleCTM( m_cgContext , 1 , -1 );
1483 }
1484
1485 void wxMacCoreGraphicsContext::EndPage()
1486 {
1487     CGContextEndPage(m_cgContext);
1488 }
1489
1490 void wxMacCoreGraphicsContext::Flush()
1491 {
1492     CGContextFlush(m_cgContext);
1493 }
1494
1495 void wxMacCoreGraphicsContext::EnsureIsValid()
1496 {
1497     if ( !m_cgContext )
1498     {
1499         OSStatus status =
1500 #if ! ( defined( __LP64__ ) || defined(__WXCOCOA__) )
1501             QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1502 #else
1503             paramErr;
1504 #endif
1505         if ( status != noErr )
1506         {
1507             wxFAIL_MSG("Cannot nest wxDCs on the same window");
1508         }
1509
1510         CGContextConcatCTM( m_cgContext, m_windowTransform );
1511         CGContextSaveGState( m_cgContext );
1512         m_releaseContext = true;
1513         if ( !HIShapeIsEmpty(m_clipRgn) )
1514         {
1515             // the clip region is in device coordinates, so we convert this again to user coordinates
1516             wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1517             CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero,m_windowTransform);
1518             HIShapeOffset( hishape, -transformedOrigin.x, -transformedOrigin.y );
1519             HIShapeReplacePathInCGContext( hishape, m_cgContext );
1520             CGContextClip( m_cgContext );
1521         }
1522         CGContextSaveGState( m_cgContext );
1523     }
1524 }
1525
1526 // TODO test whether the private CGContextSetCompositeOperation works under 10.3 (using NSCompositingModes)
1527
1528 bool wxMacCoreGraphicsContext::SetLogicalFunction( int function )
1529 {
1530     if (m_logicalFunction == function)
1531         return true;
1532
1533     EnsureIsValid();
1534
1535     bool retval = false;
1536     bool shouldAntiAlias = true;
1537     CGBlendMode mode = kCGBlendModeNormal;
1538
1539 #if defined(__WXMAC__) && ( MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 )
1540     if ( UMAGetSystemVersion() >= 0x1050 )
1541     {
1542         retval = true;
1543         switch ( function )
1544         {
1545             // TODO find best corresponding porter duff modes
1546             case wxCOPY :
1547                 mode = kCGBlendModeCopy;
1548                 break;
1549             case wxCLEAR :
1550                 mode = kCGBlendModeClear;
1551                 break;
1552             case wxXOR :
1553                 mode = kCGBlendModeXOR;
1554                 shouldAntiAlias = false;
1555                 break;
1556             default :
1557                 retval = false;
1558                 break;
1559         }
1560     }
1561     else
1562 #endif
1563     {
1564         if ( function == wxCOPY )
1565         {
1566             retval = true;
1567         }
1568         else if ( function == wxINVERT || function == wxXOR )
1569         {
1570             // change color to white
1571             mode = kCGBlendModeExclusion;
1572             shouldAntiAlias = false;
1573             retval = true;
1574         }
1575     }
1576
1577     if (retval)
1578     {
1579         m_logicalFunction = function;
1580         CGContextSetBlendMode( m_cgContext, mode );
1581         CGContextSetShouldAntialias(m_cgContext, shouldAntiAlias);
1582     }
1583     return retval ;
1584 }
1585
1586 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1587 {
1588 #ifdef __WXMAC__
1589     if( m_cgContext )
1590     {
1591         HIShapeReplacePathInCGContext( region.GetWXHRGN() , m_cgContext );
1592         CGContextClip( m_cgContext );
1593     }
1594     else
1595     {
1596         // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1597         // to regions we try at least to have correct translations
1598         HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1599
1600         CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1601         HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1602         m_clipRgn.reset(mutableShape);
1603     }
1604 #endif
1605 }
1606
1607 // clips drawings to the rect
1608 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1609 {
1610     CGRect r = CGRectMake( x , y , w , h );
1611     if ( m_cgContext )
1612     {
1613         CGContextClipToRect( m_cgContext, r );
1614     }
1615     else
1616     {
1617         // the clipping itself must be stored as device coordinates, otherwise
1618         // we cannot apply it back correctly
1619         r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
1620         m_clipRgn.reset(HIShapeCreateWithRect(&r));
1621     }
1622 }
1623
1624     // resets the clipping to original extent
1625 void wxMacCoreGraphicsContext::ResetClip()
1626 {
1627     if ( m_cgContext )
1628     {
1629         // there is no way for clearing the clip, we can only revert to the stored
1630         // state, but then we have to make sure everything else is NOT restored
1631         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1632         CGContextRestoreGState( m_cgContext );
1633         CGContextSaveGState( m_cgContext );
1634         CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
1635         transformNew = CGAffineTransformInvert( transformNew ) ;
1636         CGContextConcatCTM( m_cgContext, transformNew);
1637         CGContextConcatCTM( m_cgContext, transform);
1638     }
1639     else
1640     {
1641         CGRect r = CGRectMake(0,0,0,0);
1642         m_clipRgn.reset(HIShapeCreateWithRect(&r));
1643     }
1644 }
1645
1646 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1647 {
1648     if ( m_pen.IsNull() )
1649         return ;
1650
1651     EnsureIsValid();
1652
1653     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1654
1655     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1656     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1657     CGContextStrokePath( m_cgContext );
1658 }
1659
1660 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , int fillStyle )
1661 {
1662     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1663     {
1664         // when using shading, we cannot draw pen and brush at the same time
1665         // revert to the base implementation of first filling and then stroking
1666         wxGraphicsContext::DrawPath( path, fillStyle );
1667         return;
1668     }
1669
1670     CGPathDrawingMode mode = kCGPathFill ;
1671     if ( m_brush.IsNull() )
1672     {
1673         if ( m_pen.IsNull() )
1674             return;
1675         else
1676             mode = kCGPathStroke;
1677     }
1678     else
1679     {
1680         if ( m_pen.IsNull() )
1681         {
1682             if ( fillStyle == wxODDEVEN_RULE )
1683                 mode = kCGPathEOFill;
1684             else
1685                 mode = kCGPathFill;
1686         }
1687         else
1688         {
1689             if ( fillStyle == wxODDEVEN_RULE )
1690                 mode = kCGPathEOFillStroke;
1691             else
1692                 mode = kCGPathFillStroke;
1693         }
1694     }
1695
1696     EnsureIsValid();
1697
1698     if ( !m_brush.IsNull() )
1699         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1700     if ( !m_pen.IsNull() )
1701         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1702
1703     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1704
1705     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1706     CGContextDrawPath( m_cgContext , mode );
1707 }
1708
1709 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , int fillStyle )
1710 {
1711     if ( m_brush.IsNull() )
1712         return;
1713
1714     EnsureIsValid();
1715
1716     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1717     {
1718         CGContextSaveGState( m_cgContext );
1719         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1720         CGContextClip( m_cgContext );
1721         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1722         CGContextRestoreGState( m_cgContext);
1723     }
1724     else
1725     {
1726         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1727         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1728         if ( fillStyle == wxODDEVEN_RULE )
1729             CGContextEOFillPath( m_cgContext );
1730         else
1731             CGContextFillPath( m_cgContext );
1732     }
1733 }
1734
1735 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
1736 {
1737     // we allow either setting or clearing but not replacing
1738     wxASSERT( m_cgContext == NULL || cg == NULL );
1739
1740     if ( m_cgContext )
1741     {
1742         // TODO : when is this necessary - should we add a Flush() method ? CGContextSynchronize( m_cgContext );
1743         CGContextRestoreGState( m_cgContext );
1744         CGContextRestoreGState( m_cgContext );
1745         if ( m_releaseContext )
1746         {
1747 #if ! ( defined( __LP64__ ) || defined(__WXCOCOA__) )
1748             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
1749 #endif
1750         }
1751         else
1752             CGContextRelease(m_cgContext);
1753     }
1754
1755
1756     m_cgContext = cg;
1757
1758     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
1759     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
1760     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
1761     // for this one operation.
1762
1763     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
1764     // can be removed.
1765     if (m_cgContext)
1766     {
1767         CGContextRetain(m_cgContext);
1768         CGContextSaveGState( m_cgContext );
1769         CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
1770         CGContextSaveGState( m_cgContext );
1771         m_releaseContext = false;
1772     }
1773 }
1774
1775 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
1776 {
1777     if ( m_cgContext )
1778         CGContextTranslateCTM( m_cgContext, dx, dy );
1779     else
1780         m_windowTransform = CGAffineTransformTranslate(m_windowTransform,dx,dy);
1781 }
1782
1783 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
1784 {
1785     if ( m_cgContext )
1786         CGContextScaleCTM( m_cgContext , xScale , yScale );
1787     else
1788         m_windowTransform = CGAffineTransformScale(m_windowTransform,xScale,yScale);
1789 }
1790
1791 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
1792 {
1793     if ( m_cgContext )
1794         CGContextRotateCTM( m_cgContext , angle );
1795     else
1796         m_windowTransform = CGAffineTransformRotate(m_windowTransform,angle);
1797 }
1798
1799 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1800 {
1801     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
1802     DrawBitmap(bitmap, x, y, w, h);
1803 }
1804
1805 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1806 {
1807     EnsureIsValid();
1808 #ifdef __WXMAC__
1809     CGImageRef image = static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData())->GetBitmap();
1810     CGRect r = CGRectMake( x , y , w , h );
1811     // if ( bmp.GetDepth() == 1 )
1812     {
1813         // is is a mask, the '1' in the mask tell where to draw the current brush
1814         if (  !m_brush.IsNull() )
1815         {
1816             if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1817             {
1818                 // TODO clip to mask
1819             /*
1820                 CGContextSaveGState( m_cgContext );
1821                 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1822                 CGContextClip( m_cgContext );
1823                 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1824                 CGContextRestoreGState( m_cgContext);
1825             */
1826             }
1827             else
1828             {
1829                 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1830                 wxMacDrawCGImage( m_cgContext , &r , image );
1831             }
1832         }
1833     }
1834     /*
1835     else
1836     {
1837         wxMacDrawCGImage( m_cgContext , &r , image );
1838     }
1839     CGImageRelease( image );
1840     */
1841 #endif
1842 }
1843
1844 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1845 {
1846     EnsureIsValid();
1847
1848     CGRect r = CGRectMake( 00 , 00 , w , h );
1849     CGContextSaveGState( m_cgContext );
1850     CGContextTranslateCTM( m_cgContext, x , y + h );
1851     CGContextScaleCTM( m_cgContext, 1, -1 );
1852 #ifdef __WXMAC__
1853     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
1854         NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) );
1855 #endif
1856     CGContextRestoreGState( m_cgContext );
1857 }
1858
1859 void wxMacCoreGraphicsContext::PushState()
1860 {
1861     EnsureIsValid();
1862
1863     CGContextSaveGState( m_cgContext );
1864 }
1865
1866 void wxMacCoreGraphicsContext::PopState()
1867 {
1868     EnsureIsValid();
1869
1870     CGContextRestoreGState( m_cgContext );
1871 }
1872
1873 void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
1874 {
1875     if ( m_font.IsNull() )
1876         return;
1877
1878     EnsureIsValid();
1879 #if wxMAC_USE_CORE_TEXT
1880     if ( UMAGetSystemVersion() >= 0x1050 )
1881     {
1882         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
1883         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
1884         CTFontRef font = fref->GetCTFont();
1885         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
1886         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
1887         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
1888          CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
1889         CFTypeRef values[] = { font, col, underlined };
1890         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
1891                                                         WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
1892         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
1893         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
1894
1895         y += CTFontGetAscent(font);
1896
1897         CGContextSaveGState(m_cgContext);
1898         CGContextTranslateCTM(m_cgContext, x, y);
1899         CGContextScaleCTM(m_cgContext, 1, -1);
1900         CGContextSetTextPosition(m_cgContext, 0, 0);
1901         CTLineDraw( line, m_cgContext );
1902         CGContextRestoreGState(m_cgContext);
1903         CFRelease( col );
1904         return;
1905     }
1906 #endif
1907 #if wxMAC_USE_ATSU_TEXT
1908     {
1909         DrawText(str, x, y, 0.0);
1910         return;
1911     }
1912 #endif
1913 #if wxMAC_USE_CG_TEXT
1914     // TODO core graphics text implementation here
1915 #endif
1916 }
1917
1918 void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle )
1919 {
1920     if ( m_font.IsNull() )
1921         return;
1922
1923     EnsureIsValid();
1924 #if wxMAC_USE_CORE_TEXT
1925     if ( UMAGetSystemVersion() >= 0x1050 )
1926     {
1927         // default implementation takes care of rotation and calls non rotated DrawText afterwards
1928         wxGraphicsContext::DrawText( str, x, y, angle );
1929         return;
1930     }
1931 #endif
1932 #if wxMAC_USE_ATSU_TEXT
1933     {
1934         OSStatus status = noErr;
1935         ATSUTextLayout atsuLayout;
1936         wxMacUniCharBuffer unibuf( str );
1937         UniCharCount chars = unibuf.GetChars();
1938
1939         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
1940         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
1941                                                    &chars , &style , &atsuLayout );
1942
1943         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
1944
1945         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
1946         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
1947
1948         int iAngle = int( angle * RAD2DEG );
1949         if ( abs(iAngle) > 0 )
1950         {
1951             Fixed atsuAngle = IntToFixed( iAngle );
1952             ATSUAttributeTag atsuTags[] =
1953             {
1954                 kATSULineRotationTag ,
1955             };
1956             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1957             {
1958                 sizeof( Fixed ) ,
1959             };
1960             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1961             {
1962                 &atsuAngle ,
1963             };
1964             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1965                                              atsuTags, atsuSizes, atsuValues );
1966         }
1967
1968         {
1969             ATSUAttributeTag atsuTags[] =
1970             {
1971                 kATSUCGContextTag ,
1972             };
1973             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1974             {
1975                 sizeof( CGContextRef ) ,
1976             };
1977             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1978             {
1979                 &m_cgContext ,
1980             };
1981             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1982                                              atsuTags, atsuSizes, atsuValues );
1983         }
1984
1985         ATSUTextMeasurement textBefore, textAfter;
1986         ATSUTextMeasurement ascent, descent;
1987
1988         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1989                                             &textBefore , &textAfter, &ascent , &descent );
1990
1991         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1992
1993         Rect rect;
1994         x += (int)(sin(angle) * FixedToInt(ascent));
1995         y += (int)(cos(angle) * FixedToInt(ascent));
1996
1997         status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1998                                         IntToFixed(x) , IntToFixed(y) , &rect );
1999         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2000
2001         CGContextSaveGState(m_cgContext);
2002         CGContextTranslateCTM(m_cgContext, x, y);
2003         CGContextScaleCTM(m_cgContext, 1, -1);
2004         status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2005                                 IntToFixed(0) , IntToFixed(0) );
2006
2007         wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2008
2009         CGContextRestoreGState(m_cgContext);
2010
2011         ::ATSUDisposeTextLayout(atsuLayout);
2012
2013         return;
2014     }
2015 #endif
2016 #if wxMAC_USE_CG_TEXT
2017     // default implementation takes care of rotation and calls non rotated DrawText afterwards
2018     wxGraphicsContext::DrawText( str, x, y, angle );
2019 #endif
2020 }
2021
2022 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2023                             wxDouble *descent, wxDouble *externalLeading ) const
2024 {
2025     wxCHECK_RET( !m_font.IsNull(), wxT("wxDC(cg)::DoGetTextExtent - no valid font set") );
2026
2027     if ( width )
2028         *width = 0;
2029     if ( height )
2030         *height = 0;
2031     if ( descent )
2032         *descent = 0;
2033     if ( externalLeading )
2034         *externalLeading = 0;
2035
2036     if (str.empty())
2037         return;
2038
2039 #if wxMAC_USE_CORE_TEXT
2040     if ( UMAGetSystemVersion() >= 0x1050 )
2041     {
2042         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2043         CTFontRef font = fref->GetCTFont();
2044
2045         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2046         CFStringRef keys[] = { kCTFontAttributeName  };
2047         CFTypeRef values[] = { font };
2048         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2049                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2050         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2051         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2052
2053         CGFloat w, a, d, l;
2054
2055         w = CTLineGetTypographicBounds(line, &a, &d, &l) ;
2056
2057         if ( height )
2058             *height = a+d+l;
2059         if ( descent )
2060             *descent = d;
2061         if ( externalLeading )
2062             *externalLeading = l;
2063         if ( width )
2064             *width = w;
2065         return;
2066     }
2067 #endif
2068 #if wxMAC_USE_ATSU_TEXT
2069     {
2070         OSStatus status = noErr;
2071
2072         ATSUTextLayout atsuLayout;
2073         wxMacUniCharBuffer unibuf( str );
2074         UniCharCount chars = unibuf.GetChars();
2075
2076         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2077         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2078                                                    &chars , &style , &atsuLayout );
2079
2080         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2081
2082         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2083         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2084
2085         ATSUTextMeasurement textBefore, textAfter;
2086         ATSUTextMeasurement textAscent, textDescent;
2087
2088         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2089                                             &textBefore , &textAfter, &textAscent , &textDescent );
2090
2091         if ( height )
2092             *height = FixedToInt(textAscent + textDescent);
2093         if ( descent )
2094             *descent = FixedToInt(textDescent);
2095         if ( externalLeading )
2096             *externalLeading = 0;
2097         if ( width )
2098             *width = FixedToInt(textAfter - textBefore);
2099
2100         ::ATSUDisposeTextLayout(atsuLayout);
2101
2102         return;
2103     }
2104 #endif
2105 #if wxMAC_USE_CG_TEXT
2106     // TODO core graphics text implementation here
2107 #endif
2108 }
2109
2110 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2111 {
2112     widths.Empty();
2113     widths.Add(0, text.length());
2114
2115     if (text.empty())
2116         return;
2117
2118 #if wxMAC_USE_CORE_TEXT
2119     {
2120         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2121         CTFontRef font = fref->GetCTFont();
2122
2123         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2124         CFStringRef keys[] = { kCTFontAttributeName  };
2125         CFTypeRef values[] = { font };
2126         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2127                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2128         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2129         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2130
2131         int chars = text.length();
2132         for ( int pos = 0; pos < (int)chars; pos ++ )
2133         {
2134             widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5;
2135         }
2136
2137         return;
2138     }
2139 #endif
2140 #if wxMAC_USE_ATSU_TEXT
2141     {
2142         OSStatus status = noErr;
2143         ATSUTextLayout atsuLayout;
2144         wxMacUniCharBuffer unibuf( text );
2145         UniCharCount chars = unibuf.GetChars();
2146
2147         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2148         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2149                                           &chars , &style , &atsuLayout );
2150
2151         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2152
2153         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2154         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2155
2156 // new implementation from JS, keep old one just in case
2157 #if 0
2158         for ( int pos = 0; pos < (int)chars; pos ++ )
2159         {
2160             unsigned long actualNumberOfBounds = 0;
2161             ATSTrapezoid glyphBounds;
2162
2163             // We get a single bound, since the text should only require one. If it requires more, there is an issue
2164             OSStatus result;
2165             result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2166                                         kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2167             if (result != noErr || actualNumberOfBounds != 1 )
2168                 return;
2169
2170             widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2171             //unsigned char uch = s[i];
2172         }
2173 #else
2174         ATSLayoutRecord *layoutRecords = NULL;
2175         ItemCount glyphCount = 0;
2176
2177         // Get the glyph extents
2178         OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2179                                                                        0,
2180                                                                        kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2181                                                                        (void **)
2182                                                                        &layoutRecords,
2183                                                                        &glyphCount);
2184         wxASSERT(glyphCount == (text.length()+1));
2185
2186         if ( err == noErr && glyphCount == (text.length()+1))
2187         {
2188             for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2189             {
2190                 widths[pos-1] = FixedToInt( layoutRecords[pos].realPos );
2191             }
2192         }
2193
2194         ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2195                                               kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2196                                               (void **) &layoutRecords);
2197 #endif
2198         ::ATSUDisposeTextLayout(atsuLayout);
2199     }
2200 #endif
2201 #if wxMAC_USE_CG_TEXT
2202     // TODO core graphics text implementation here
2203 #endif
2204 }
2205
2206 void * wxMacCoreGraphicsContext::GetNativeContext()
2207 {
2208     return m_cgContext;
2209 }
2210
2211 // concatenates this transform with the current transform of this context
2212 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2213 {
2214     if ( m_cgContext )
2215         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2216     else
2217         m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
2218 }
2219
2220 // sets the transform of this context
2221 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2222 {
2223     if ( m_cgContext )
2224     {
2225         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2226         transform = CGAffineTransformInvert( transform ) ;
2227         CGContextConcatCTM( m_cgContext, transform);
2228         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2229     }
2230     else
2231     {
2232         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2233     }
2234 }
2235
2236 // gets the matrix of this context
2237 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2238 {
2239     wxGraphicsMatrix m = CreateMatrix();
2240     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2241         CGContextGetCTM( m_cgContext ));
2242     return m;
2243 }
2244
2245 //
2246 // Renderer
2247 //
2248
2249 //-----------------------------------------------------------------------------
2250 // wxMacCoreGraphicsRenderer declaration
2251 //-----------------------------------------------------------------------------
2252
2253 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2254 {
2255 public :
2256     wxMacCoreGraphicsRenderer() {}
2257
2258     virtual ~wxMacCoreGraphicsRenderer() {}
2259
2260     // Context
2261
2262     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2263     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2264     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2265
2266     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2267
2268     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2269
2270     virtual wxGraphicsContext * CreateContext( wxWindow* window );
2271
2272     virtual wxGraphicsContext * CreateMeasuringContext();
2273
2274     // Path
2275
2276     virtual wxGraphicsPath CreatePath();
2277
2278     // Matrix
2279
2280     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2281         wxDouble tx=0.0, wxDouble ty=0.0);
2282
2283
2284     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2285
2286     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2287
2288     // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2289     virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2290         const wxColour&c1, const wxColour&c2) ;
2291
2292     // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2293     // with radius r and color cColor
2294     virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2295         const wxColour &oColor, const wxColour &cColor) ;
2296
2297    // sets the font
2298     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2299
2300     // create a native bitmap representation
2301     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2302
2303     // create a native bitmap representation
2304     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
2305 private :
2306     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2307 } ;
2308
2309 //-----------------------------------------------------------------------------
2310 // wxMacCoreGraphicsRenderer implementation
2311 //-----------------------------------------------------------------------------
2312
2313 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2314
2315 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2316
2317 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2318 {
2319     return &gs_MacCoreGraphicsRenderer;
2320 }
2321
2322 #ifdef __WXCOCOA__
2323 extern CGContextRef wxMacGetContextFromCurrentNSContext() ;
2324 #endif
2325
2326 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2327 {
2328     const wxDCImpl* impl = dc.GetImpl();
2329     wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2330     if (win_impl)
2331     {
2332         int w, h;
2333         win_impl->GetSize( &w, &h );
2334         CGContextRef cgctx = 0;
2335 #ifdef __WXMAC__
2336         cgctx =  (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2337 #else
2338         cgctx = wxMacGetContextFromCurrentNSContext() ;
2339 #endif
2340         return new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2341     }
2342     return NULL;
2343 }
2344
2345 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2346 {
2347 #ifdef __WXMAC__
2348     const wxDCImpl* impl = dc.GetImpl();
2349     wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2350     if (mem_impl)
2351     {
2352         int w, h;
2353         mem_impl->GetSize( &w, &h );
2354         return new wxMacCoreGraphicsContext( this,
2355             (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2356     }
2357 #endif
2358     return NULL;
2359 }
2360
2361 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2362 {
2363 #ifdef __WXMAC__
2364     const wxDCImpl* impl = dc.GetImpl();
2365     wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2366     if (print_impl)
2367     {
2368         int w, h;
2369         print_impl->GetSize( &w, &h );
2370         return new wxMacCoreGraphicsContext( this,
2371             (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2372     }
2373 #endif
2374     return NULL;
2375 }
2376
2377 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2378 {
2379     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2380 }
2381
2382
2383 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2384 {
2385     return new wxMacCoreGraphicsContext(this,(WindowRef)window);
2386 }
2387
2388 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
2389 {
2390     return new wxMacCoreGraphicsContext(this, window );
2391 }
2392
2393 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
2394 {
2395     return new wxMacCoreGraphicsContext(this);
2396 }
2397
2398 // Path
2399
2400 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
2401 {
2402     wxGraphicsPath m;
2403     m.SetRefData( new wxMacCoreGraphicsPathData(this));
2404     return m;
2405 }
2406
2407
2408 // Matrix
2409
2410 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
2411     wxDouble tx, wxDouble ty)
2412 {
2413     wxGraphicsMatrix m;
2414     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
2415     data->Set( a,b,c,d,tx,ty ) ;
2416     m.SetRefData(data);
2417     return m;
2418 }
2419
2420 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
2421 {
2422     if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
2423         return wxNullGraphicsPen;
2424     else
2425     {
2426         wxGraphicsPen p;
2427         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
2428         return p;
2429     }
2430 }
2431
2432 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
2433 {
2434     if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
2435         return wxNullGraphicsBrush;
2436     else
2437     {
2438         wxGraphicsBrush p;
2439         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
2440         return p;
2441     }
2442 }
2443
2444 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
2445 {
2446     if ( bmp.Ok() )
2447     {
2448         wxGraphicsBitmap p;
2449 #ifdef __WXMAC__
2450         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage() ) );
2451 #endif
2452         return p;
2453     }
2454     else
2455         return wxNullGraphicsBitmap;
2456 }
2457
2458 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
2459 {
2460     CGImageRef img = static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData())->GetBitmap();
2461     if ( img )
2462     {
2463         wxGraphicsBitmap p;
2464         CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( x , y , w , h ));
2465         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg ) );
2466         return p;
2467     }
2468     else
2469         return wxNullGraphicsBitmap;
2470 }
2471
2472 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2473 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2474     const wxColour&c1, const wxColour&c2)
2475 {
2476     wxGraphicsBrush p;
2477     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2478     d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
2479     p.SetRefData(d);
2480     return p;
2481 }
2482
2483 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2484 // with radius r and color cColor
2485 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2486     const wxColour &oColor, const wxColour &cColor)
2487 {
2488     wxGraphicsBrush p;
2489     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2490     d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
2491     p.SetRefData(d);
2492     return p;
2493 }
2494
2495 // sets the font
2496 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
2497 {
2498     if ( font.Ok() )
2499     {
2500         wxGraphicsFont p;
2501         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
2502         return p;
2503     }
2504     else
2505         return wxNullGraphicsFont;
2506 }
2507
2508 //
2509 // CoreGraphics Helper Methods
2510 //
2511
2512 // Data Providers and Consumers
2513
2514 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
2515 {
2516     CFMutableDataRef data = (CFMutableDataRef) info;
2517     if ( data )
2518     {
2519         CFDataAppendBytes( data, (const UInt8*) bytes, count );
2520     }
2521     return count;
2522 }
2523
2524 void wxMacReleaseCFDataProviderCallback(void *info,
2525                                       const void *WXUNUSED(data),
2526                                       size_t WXUNUSED(count))
2527 {
2528     if ( info )
2529         CFRelease( (CFDataRef) info );
2530 }
2531
2532 void wxMacReleaseCFDataConsumerCallback( void *info )
2533 {
2534     if ( info )
2535         CFRelease( (CFDataRef) info );
2536 }
2537
2538 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
2539 {
2540     if ( data == NULL )
2541         return NULL;
2542
2543     return CGDataProviderCreateWithCFData( data );
2544 }
2545
2546 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
2547 {
2548     if ( data == NULL )
2549         return NULL;
2550
2551     return CGDataConsumerCreateWithCFData( data );
2552 }
2553
2554 void
2555 wxMacReleaseMemoryBufferProviderCallback(void *info,
2556                                          const void * WXUNUSED_UNLESS_DEBUG(data),
2557                                          size_t WXUNUSED(size))
2558 {
2559     wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
2560
2561     wxASSERT( data == membuf->GetData() ) ;
2562
2563     delete membuf ;
2564 }
2565
2566 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
2567 {
2568     wxMemoryBuffer* b = new wxMemoryBuffer( buf );
2569     if ( b->GetDataLen() == 0 )
2570         return NULL;
2571
2572     return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
2573                                                  wxMacReleaseMemoryBufferProviderCallback );
2574 }