src/osx/carbon/graphics.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/carbon/dccg.cpp
   3 // Purpose:     wxDC class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/graphics.h"
  15 #include "wx/private/graphics.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/dcclient.h"
  19     #include "wx/dcmemory.h"
  20     #include "wx/dcprint.h"
  21     #include "wx/log.h"
  22     #include "wx/region.h"
  23     #include "wx/image.h"
  24     #include "wx/icon.h"
  25 #endif
  26
  27
  28 #ifdef __MSL__
  29     #if __MSL__ >= 0x6000
  30         #include "math.h"
  31         // in case our functions were defined outside std, we make it known all the same
  32         namespace std { }
  33         using namespace std;
  34     #endif
  35 #endif
  36
  37 #ifdef __WXMAC__
  38     #include "wx/osx/private.h"
  39     #include "wx/osx/dcprint.h"
  40     #include "wx/osx/dcclient.h"
  41     #include "wx/osx/dcmemory.h"
  42     #include "wx/osx/private.h"
  43 #else
  44     #include "CoreServices/CoreServices.h"
  45     #include "ApplicationServices/ApplicationServices.h"
  46     #include "wx/osx/core/cfstring.h"
  47     #include "wx/cocoa/dcclient.h"
  48 #endif
  49
  50 #ifdef __WXCOCOA__
  51
  52 CGColorSpaceRef wxMacGetGenericRGBColorSpace()
  53 {
  54     static wxCFRef<CGColorSpaceRef> genericRGBColorSpace;
  55
  56     if (genericRGBColorSpace == NULL)
  57     {
  58         genericRGBColorSpace.reset( CGColorSpaceCreateWithName( kCGColorSpaceGenericRGB ) );
  59     }
  60
  61     return genericRGBColorSpace;
  62 }
  63
  64 int UMAGetSystemVersion()
  65 {
  66     return 0x1050;
  67 }
  68
  69
  70 #define wxOSX_USE_CORE_TEXT 1
  71
  72 #endif
  73
  74 #if wxOSX_USE_COCOA_OR_IPHONE
  75 extern CGContextRef wxOSXGetContextFromCurrentNSContext() ;
  76 extern bool wxOSXLockFocus( WXWidget view) ;
  77 extern void wxOSXUnlockFocus( WXWidget view) ;
  78 #endif
  79
  80 #if 1 // MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
  81
  82 // TODO test whether this private API also works under 10.3
  83
  84 // copying values from NSCompositingModes (see also webkit and cairo sources)
  85
  86 typedef enum CGCompositeOperation {
  87    kCGCompositeOperationClear           = 0,
  88    kCGCompositeOperationCopy            = 1,
  89    kCGCompositeOperationSourceOver      = 2,
  90    kCGCompositeOperationSourceIn        = 3,
  91    kCGCompositeOperationSourceOut       = 4,
  92    kCGCompositeOperationSourceAtop      = 5,
  93    kCGCompositeOperationDestinationOver = 6,
  94    kCGCompositeOperationDestinationIn   = 7,
  95    kCGCompositeOperationDestinationOut  = 8,
  96    kCGCompositeOperationDestinationAtop = 9,
  97    kCGCompositeOperationXOR             = 10,
  98    kCGCompositeOperationPlusDarker      = 11,
  99 // NS only, unsupported by CG : Highlight
 100    kCGCompositeOperationPlusLighter     = 12
 101 } CGCompositeOperation ;
 102
 103 extern "C"
 104 {
 105    CG_EXTERN void CGContextSetCompositeOperation (CGContextRef context, int operation);
 106 } ;
 107
 108 #endif
 109
 110 //-----------------------------------------------------------------------------
 111 // constants
 112 //-----------------------------------------------------------------------------
 113
 114 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
 115 #ifndef M_PI
 116 const double M_PI = 3.14159265358979;
 117 #endif
 118 #endif
 119
 120 static const double RAD2DEG = 180.0 / M_PI;
 121
 122 //
 123 // Pen, Brushes and Fonts
 124 //
 125
 126 #pragma mark -
 127 #pragma mark wxMacCoreGraphicsPattern, ImagePattern, HatchPattern classes
 128
 129 OSStatus wxMacDrawCGImage(
 130                   CGContextRef    inContext,
 131                   const CGRect *  inBounds,
 132                   CGImageRef      inImage)
 133 {
 134 #if wxOSX_USE_CARBON
 135     return HIViewDrawCGImage( inContext, inBounds, inImage );
 136 #else
 137     CGContextSaveGState(inContext);
 138     CGContextTranslateCTM(inContext, inBounds->origin.x, inBounds->origin.y + inBounds->size.height);
 139     CGRect r = *inBounds;
 140     r.origin.x = r.origin.y = 0;
 141     CGContextScaleCTM(inContext, 1, -1);
 142     CGContextDrawImage(inContext, r, inImage );
 143     CGContextRestoreGState(inContext);
 144     return noErr;
 145 #endif
 146 }
 147
 148 CGColorRef wxMacCreateCGColor( const wxColour& col )
 149 {
 150     CGColorRef retval = 0;
 151 #ifdef __WXMAC__
 152     retval = col.CreateCGColor();
 153 #else
 154 // TODO add conversion NSColor - CGColorRef (obj-c)
 155 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
 156     if ( CGColorCreateGenericRGB )
 157         retval = CGColorCreateGenericRGB( col.Red() / 255.0 , col.Green() / 255.0, col.Blue() / 255.0, col.Alpha() / 255.0 );
 158     else
 159 #endif
 160     {
 161         CGFloat components[4] = { col.Red() / 255.0, col.Green() / 255.0, col.Blue()  / 255.0, col.Alpha() / 255.0 } ;
 162         retval = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
 163     }
 164
 165 #endif
 166     return retval;
 167 }
 168
 169 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 && wxOSX_USE_CORE_TEXT
 170
 171 CTFontRef wxMacCreateCTFont( const wxFont& font )
 172 {
 173 #ifdef __WXMAC__
 174     return wxCFRetain((CTFontRef) font.MacGetCTFont());
 175 #else
 176     return CTFontCreateWithName( wxCFStringRef( font.GetFaceName(), wxLocale::GetSystemEncoding() ) , font.GetPointSize() , NULL );
 177 #endif
 178 }
 179
 180 #endif
 181
 182 // CGPattern wrapper class: always allocate on heap, never call destructor
 183
 184 class wxMacCoreGraphicsPattern
 185 {
 186 public :
 187     wxMacCoreGraphicsPattern() {}
 188
 189     // is guaranteed to be called only with a non-Null CGContextRef
 190     virtual void Render( CGContextRef ctxRef ) = 0;
 191
 192     operator CGPatternRef() const { return m_patternRef; }
 193
 194 protected :
 195     virtual ~wxMacCoreGraphicsPattern()
 196     {
 197         // as this is called only when the m_patternRef is been released;
 198         // don't release it again
 199     }
 200
 201     static void _Render( void *info, CGContextRef ctxRef )
 202     {
 203         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 204         if ( self && ctxRef )
 205             self->Render( ctxRef );
 206     }
 207
 208     static void _Dispose( void *info )
 209     {
 210         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 211         delete self;
 212     }
 213
 214     CGPatternRef m_patternRef;
 215
 216     static const CGPatternCallbacks ms_Callbacks;
 217 };
 218
 219 const CGPatternCallbacks wxMacCoreGraphicsPattern::ms_Callbacks = { 0, &wxMacCoreGraphicsPattern::_Render, &wxMacCoreGraphicsPattern::_Dispose };
 220
 221 class ImagePattern : public wxMacCoreGraphicsPattern
 222 {
 223 public :
 224     ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
 225     {
 226         wxASSERT( bmp && bmp->Ok() );
 227 #ifdef __WXMAC__
 228         Init( (CGImageRef) bmp->CreateCGImage() , transform );
 229 #endif
 230     }
 231
 232     // ImagePattern takes ownership of CGImageRef passed in
 233     ImagePattern( CGImageRef image , const CGAffineTransform& transform )
 234     {
 235         if ( image )
 236             CFRetain( image );
 237
 238         Init( image , transform );
 239     }
 240
 241     virtual void Render( CGContextRef ctxRef )
 242     {
 243         if (m_image != NULL)
 244             wxMacDrawCGImage( ctxRef, &m_imageBounds, m_image );
 245     }
 246
 247 protected :
 248     void Init( CGImageRef image, const CGAffineTransform& transform )
 249     {
 250         m_image = image;
 251         if ( m_image )
 252         {
 253             m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) );
 254             m_patternRef = CGPatternCreate(
 255                 this , m_imageBounds, transform ,
 256                 m_imageBounds.size.width, m_imageBounds.size.height,
 257                 kCGPatternTilingNoDistortion, true , &wxMacCoreGraphicsPattern::ms_Callbacks );
 258         }
 259     }
 260
 261     virtual ~ImagePattern()
 262     {
 263         if ( m_image )
 264             CGImageRelease( m_image );
 265     }
 266
 267     CGImageRef m_image;
 268     CGRect m_imageBounds;
 269 };
 270
 271 class HatchPattern : public wxMacCoreGraphicsPattern
 272 {
 273 public :
 274     HatchPattern( int hatchstyle, const CGAffineTransform& transform )
 275     {
 276         m_hatch = hatchstyle;
 277         m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat) 8.0 , (CGFloat) 8.0 );
 278         m_patternRef = CGPatternCreate(
 279             this , m_imageBounds, transform ,
 280             m_imageBounds.size.width, m_imageBounds.size.height,
 281             kCGPatternTilingNoDistortion, false , &wxMacCoreGraphicsPattern::ms_Callbacks );
 282     }
 283
 284     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 285     {
 286         CGContextStrokeLineSegments( ctxRef , pts , count );
 287     }
 288
 289     virtual void Render( CGContextRef ctxRef )
 290     {
 291         switch ( m_hatch )
 292         {
 293             case wxBDIAGONAL_HATCH :
 294                 {
 295                     CGPoint pts[] =
 296                     {
 297                     { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 298                     };
 299                     StrokeLineSegments( ctxRef , pts , 2 );
 300                 }
 301                 break;
 302
 303             case wxCROSSDIAG_HATCH :
 304                 {
 305                     CGPoint pts[] =
 306                     {
 307                         { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 } ,
 308                         { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 309                     };
 310                     StrokeLineSegments( ctxRef , pts , 4 );
 311                 }
 312                 break;
 313
 314             case wxFDIAGONAL_HATCH :
 315                 {
 316                     CGPoint pts[] =
 317                     {
 318                     { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 }
 319                     };
 320                     StrokeLineSegments( ctxRef , pts , 2 );
 321                 }
 322                 break;
 323
 324             case wxCROSS_HATCH :
 325                 {
 326                     CGPoint pts[] =
 327                     {
 328                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 329                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 330                     };
 331                     StrokeLineSegments( ctxRef , pts , 4 );
 332                 }
 333                 break;
 334
 335             case wxHORIZONTAL_HATCH :
 336                 {
 337                     CGPoint pts[] =
 338                     {
 339                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 340                     };
 341                     StrokeLineSegments( ctxRef , pts , 2 );
 342                 }
 343                 break;
 344
 345             case wxVERTICAL_HATCH :
 346                 {
 347                     CGPoint pts[] =
 348                     {
 349                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 350                     };
 351                     StrokeLineSegments( ctxRef , pts , 2 );
 352                 }
 353                 break;
 354
 355             default:
 356                 break;
 357         }
 358     }
 359
 360 protected :
 361     virtual ~HatchPattern() {}
 362
 363     CGRect      m_imageBounds;
 364     int         m_hatch;
 365 };
 366
 367 class wxMacCoreGraphicsPenData : public wxGraphicsObjectRefData
 368 {
 369 public:
 370     wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
 371     ~wxMacCoreGraphicsPenData();
 372
 373     void Init();
 374     virtual void Apply( wxGraphicsContext* context );
 375     virtual wxDouble GetWidth() { return m_width; }
 376
 377 protected :
 378     CGLineCap m_cap;
 379     wxCFRef<CGColorRef> m_color;
 380     wxCFRef<CGColorSpaceRef> m_colorSpace;
 381
 382     CGLineJoin m_join;
 383     CGFloat m_width;
 384
 385     int m_count;
 386     const CGFloat *m_lengths;
 387     CGFloat *m_userLengths;
 388
 389
 390     bool m_isPattern;
 391     wxCFRef<CGPatternRef> m_pattern;
 392     CGFloat* m_patternColorComponents;
 393 };
 394
 395 wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) :
 396     wxGraphicsObjectRefData( renderer )
 397 {
 398     Init();
 399
 400     m_color.reset( wxMacCreateCGColor( pen.GetColour() ) ) ;
 401
 402     // TODO: * m_dc->m_scaleX
 403     m_width = pen.GetWidth();
 404     if (m_width <= 0.0)
 405         m_width = (CGFloat) 0.1;
 406
 407     switch ( pen.GetCap() )
 408     {
 409         case wxCAP_ROUND :
 410             m_cap = kCGLineCapRound;
 411             break;
 412
 413         case wxCAP_PROJECTING :
 414             m_cap = kCGLineCapSquare;
 415             break;
 416
 417         case wxCAP_BUTT :
 418             m_cap = kCGLineCapButt;
 419             break;
 420
 421         default :
 422             m_cap = kCGLineCapButt;
 423             break;
 424     }
 425
 426     switch ( pen.GetJoin() )
 427     {
 428         case wxJOIN_BEVEL :
 429             m_join = kCGLineJoinBevel;
 430             break;
 431
 432         case wxJOIN_MITER :
 433             m_join = kCGLineJoinMiter;
 434             break;
 435
 436         case wxJOIN_ROUND :
 437             m_join = kCGLineJoinRound;
 438             break;
 439
 440         default :
 441             m_join = kCGLineJoinMiter;
 442             break;
 443     }
 444
 445     const CGFloat dashUnit = m_width < 1.0 ? (CGFloat) 1.0 : m_width;
 446
 447     const CGFloat dotted[] = { (CGFloat) dashUnit , (CGFloat) (dashUnit + 2.0) };
 448     static const CGFloat short_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 };
 449     static const CGFloat dashed[] = { (CGFloat) 19.0 , (CGFloat) 9.0 };
 450     static const CGFloat dotted_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 , (CGFloat) 3.0 , (CGFloat) 3.0 };
 451
 452     switch ( pen.GetStyle() )
 453     {
 454         case wxSOLID :
 455             break;
 456
 457         case wxDOT :
 458             m_count = WXSIZEOF(dotted);
 459             m_userLengths = new CGFloat[ m_count ] ;
 460             memcpy( m_userLengths, dotted, sizeof(dotted) );
 461             m_lengths = m_userLengths;
 462             break;
 463
 464         case wxLONG_DASH :
 465             m_count = WXSIZEOF(dashed);
 466             m_lengths = dashed;
 467             break;
 468
 469         case wxSHORT_DASH :
 470             m_count = WXSIZEOF(short_dashed);
 471             m_lengths = short_dashed;
 472             break;
 473
 474         case wxDOT_DASH :
 475             m_count = WXSIZEOF(dotted_dashed);
 476             m_lengths = dotted_dashed;
 477             break;
 478
 479         case wxUSER_DASH :
 480             wxDash *dashes;
 481             m_count = pen.GetDashes( &dashes );
 482             if ((dashes != NULL) && (m_count > 0))
 483             {
 484                 m_userLengths = new CGFloat[m_count];
 485                 for ( int i = 0; i < m_count; ++i )
 486                 {
 487                     m_userLengths[i] = dashes[i] * dashUnit;
 488
 489                     if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
 490                         m_userLengths[i] = (CGFloat) (dashUnit + 2.0);
 491                     else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
 492                         m_userLengths[i] = dashUnit;
 493                 }
 494             }
 495             m_lengths = m_userLengths;
 496             break;
 497
 498         case wxSTIPPLE :
 499             {
 500                 wxBitmap* bmp = pen.GetStipple();
 501                 if ( bmp && bmp->Ok() )
 502                 {
 503                     m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 504                     m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 505                     m_patternColorComponents = new CGFloat[1] ;
 506                     m_patternColorComponents[0] = (CGFloat) 1.0;
 507                     m_isPattern = true;
 508                 }
 509             }
 510             break;
 511
 512         default :
 513             {
 514                 m_isPattern = true;
 515                 m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 516                 m_pattern.reset( (CGPatternRef) *( new HatchPattern( pen.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 517                 m_patternColorComponents = new CGFloat[4] ;
 518                 m_patternColorComponents[0] = (CGFloat) (pen.GetColour().Red() / 255.0);
 519                 m_patternColorComponents[1] = (CGFloat) (pen.GetColour().Green() / 255.0);
 520                 m_patternColorComponents[2] = (CGFloat) (pen.GetColour().Blue() / 255.0);
 521                 m_patternColorComponents[3] =  (CGFloat) (pen.GetColour().Alpha() / 255.0);
 522             }
 523             break;
 524     }
 525     if ((m_lengths != NULL) && (m_count > 0))
 526     {
 527         // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 528         m_cap = kCGLineCapButt;
 529     }
 530 }
 531
 532 wxMacCoreGraphicsPenData::~wxMacCoreGraphicsPenData()
 533 {
 534     delete[] m_userLengths;
 535     delete[] m_patternColorComponents;
 536 }
 537
 538 void wxMacCoreGraphicsPenData::Init()
 539 {
 540     m_lengths = NULL;
 541     m_userLengths = NULL;
 542     m_width = 0;
 543     m_count = 0;
 544     m_patternColorComponents = NULL;
 545     m_isPattern = false;
 546 }
 547
 548 void wxMacCoreGraphicsPenData::Apply( wxGraphicsContext* context )
 549 {
 550     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 551     CGContextSetLineWidth( cg , m_width );
 552     CGContextSetLineJoin( cg , m_join );
 553
 554     CGContextSetLineDash( cg , 0 , m_lengths , m_count );
 555     CGContextSetLineCap( cg , m_cap );
 556
 557     if ( m_isPattern )
 558     {
 559         CGAffineTransform matrix = CGContextGetCTM( cg );
 560         CGContextSetPatternPhase( cg, CGSizeMake(matrix.tx, matrix.ty) );
 561         CGContextSetStrokeColorSpace( cg , m_colorSpace );
 562         CGContextSetStrokePattern( cg, m_pattern , m_patternColorComponents );
 563     }
 564     else
 565     {
 566         CGContextSetStrokeColorWithColor( cg , m_color );
 567     }
 568 }
 569
 570 //
 571 // Brush
 572 //
 573
 574 static const char *gs_stripedback_xpm[] = {
 575 /* columns rows colors chars-per-pixel */
 576 "4 4 2 1",
 577 ". c #F0F0F0",
 578 "X c #ECECEC",
 579 /* pixels */
 580 "....",
 581 "....",
 582 "XXXX",
 583 "XXXX"
 584 };
 585
 586 wxBitmap gs_stripedback_bmp( wxImage( (const char* const* ) gs_stripedback_xpm  ), -1 ) ;
 587
 588 // make sure we all use one class for all conversions from wx to native colour
 589
 590 class wxMacCoreGraphicsColour
 591 {
 592     public:
 593         wxMacCoreGraphicsColour();
 594         wxMacCoreGraphicsColour(const wxBrush &brush);
 595         ~wxMacCoreGraphicsColour();
 596
 597         void Apply( CGContextRef cgContext );
 598     protected:
 599         void Init();
 600         wxCFRef<CGColorRef> m_color;
 601         wxCFRef<CGColorSpaceRef> m_colorSpace;
 602
 603         bool m_isPattern;
 604         wxCFRef<CGPatternRef> m_pattern;
 605         CGFloat* m_patternColorComponents;
 606 } ;
 607
 608 wxMacCoreGraphicsColour::~wxMacCoreGraphicsColour()
 609 {
 610     delete[] m_patternColorComponents;
 611 }
 612
 613 void wxMacCoreGraphicsColour::Init()
 614 {
 615     m_isPattern = false;
 616     m_patternColorComponents = NULL;
 617 }
 618
 619 void wxMacCoreGraphicsColour::Apply( CGContextRef cgContext )
 620 {
 621     if ( m_isPattern )
 622     {
 623         CGAffineTransform matrix = CGContextGetCTM( cgContext );
 624         CGContextSetPatternPhase( cgContext, CGSizeMake(matrix.tx, matrix.ty) );
 625         CGContextSetFillColorSpace( cgContext , m_colorSpace );
 626         CGContextSetFillPattern( cgContext, m_pattern , m_patternColorComponents );
 627     }
 628     else
 629     {
 630         CGContextSetFillColorWithColor( cgContext, m_color );
 631     }
 632 }
 633
 634 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour()
 635 {
 636     Init();
 637 }
 638
 639 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour( const wxBrush &brush )
 640 {
 641     Init();
 642     if ( brush.GetStyle() == wxSOLID )
 643     {
 644         m_color.reset( wxMacCreateCGColor( brush.GetColour() ));
 645     }
 646     else if ( brush.IsHatch() )
 647     {
 648         m_isPattern = true;
 649         m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 650         m_pattern.reset( (CGPatternRef) *( new HatchPattern( brush.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 651
 652         m_patternColorComponents = new CGFloat[4] ;
 653         m_patternColorComponents[0] = (CGFloat) (brush.GetColour().Red() / 255.0);
 654         m_patternColorComponents[1] = (CGFloat) (brush.GetColour().Green() / 255.0);
 655         m_patternColorComponents[2] = (CGFloat) (brush.GetColour().Blue() / 255.0);
 656         m_patternColorComponents[3] = (CGFloat) (brush.GetColour().Alpha() / 255.0);
 657     }
 658     else
 659     {
 660         // now brush is a bitmap
 661         wxBitmap* bmp = brush.GetStipple();
 662         if ( bmp && bmp->Ok() )
 663         {
 664             m_isPattern = true;
 665             m_patternColorComponents = new CGFloat[1] ;
 666             m_patternColorComponents[0] = (CGFloat) 1.0;
 667             m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 668             m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 669         }
 670     }
 671 }
 672
 673 class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
 674 {
 675 public:
 676     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
 677     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
 678     ~wxMacCoreGraphicsBrushData ();
 679
 680     virtual void Apply( wxGraphicsContext* context );
 681     void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 682         const wxColour&c1, const wxColour&c2 );
 683     void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 684     const wxColour &oColor, const wxColour &cColor );
 685
 686     virtual bool IsShading() { return m_isShading; }
 687     CGShadingRef GetShading() { return m_shading; }
 688 protected:
 689     CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 );
 690     static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
 691     virtual void Init();
 692
 693     wxMacCoreGraphicsColour m_cgColor;
 694
 695     bool m_isShading;
 696     CGFunctionRef m_gradientFunction;
 697     CGShadingRef m_shading;
 698     CGFloat *m_gradientComponents;
 699 };
 700
 701 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
 702 {
 703     Init();
 704 }
 705
 706 void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 707         const wxColour&c1, const wxColour&c2 )
 708 {
 709     m_gradientFunction = CreateGradientFunction( c1, c2 );
 710     m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) x1, (CGFloat) y1),
 711                                         CGPointMake((CGFloat) x2,(CGFloat) y2), m_gradientFunction, true, true ) ;
 712     m_isShading = true ;
 713 }
 714
 715 void wxMacCoreGraphicsBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 716     const wxColour &oColor, const wxColour &cColor )
 717 {
 718     m_gradientFunction = CreateGradientFunction( oColor, cColor );
 719     m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) xo,(CGFloat) yo), 0,
 720                                         CGPointMake((CGFloat) xc,(CGFloat) yc), (CGFloat) radius, m_gradientFunction, true, true ) ;
 721     m_isShading = true ;
 722 }
 723
 724 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer ),
 725     m_cgColor( brush )
 726 {
 727     Init();
 728
 729 }
 730
 731 wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
 732 {
 733     if ( m_shading )
 734         CGShadingRelease(m_shading);
 735
 736     if( m_gradientFunction )
 737         CGFunctionRelease(m_gradientFunction);
 738
 739     delete[] m_gradientComponents;
 740 }
 741
 742 void wxMacCoreGraphicsBrushData::Init()
 743 {
 744     m_gradientFunction = NULL;
 745     m_shading = NULL;
 746     m_gradientComponents = NULL;
 747     m_isShading = false;
 748 }
 749
 750 void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
 751 {
 752     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 753
 754     if ( m_isShading )
 755     {
 756         // nothing to set as shades are processed by clipping using the path and filling
 757     }
 758     else
 759     {
 760         m_cgColor.Apply( cg );
 761     }
 762 }
 763
 764 void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
 765 {
 766     CGFloat* colors = (CGFloat*) info ;
 767     CGFloat f = *in;
 768     for( int i = 0 ; i < 4 ; ++i )
 769     {
 770         out[i] = colors[i] + ( colors[4+i] - colors[i] ) * f;
 771     }
 772 }
 773
 774 CGFunctionRef wxMacCoreGraphicsBrushData::CreateGradientFunction( const wxColour& c1, const wxColour& c2 )
 775 {
 776     static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL };
 777     static const CGFloat input_value_range [2] = { 0, 1 };
 778     static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 };
 779     m_gradientComponents = new CGFloat[8] ;
 780     m_gradientComponents[0] = (CGFloat) (c1.Red() / 255.0);
 781     m_gradientComponents[1] = (CGFloat) (c1.Green() / 255.0);
 782     m_gradientComponents[2] = (CGFloat) (c1.Blue() / 255.0);
 783     m_gradientComponents[3] = (CGFloat) (c1.Alpha() / 255.0);
 784     m_gradientComponents[4] = (CGFloat) (c2.Red() / 255.0);
 785     m_gradientComponents[5] = (CGFloat) (c2.Green() / 255.0);
 786     m_gradientComponents[6] = (CGFloat) (c2.Blue() / 255.0);
 787     m_gradientComponents[7] = (CGFloat) (c2.Alpha() / 255.0);
 788
 789     return CGFunctionCreate ( m_gradientComponents,  1,
 790                             input_value_range,
 791                             4,
 792                             output_value_ranges,
 793                             &callbacks);
 794 }
 795
 796 //
 797 // Font
 798 //
 799
 800 #if wxOSX_USE_IPHONE
 801
 802 extern UIFont* CreateUIFont( const wxFont& font );
 803 extern void DrawTextInContext( CGContextRef context, CGPoint where, UIFont *font, NSString* text );
 804 extern CGSize MeasureTextInContext( UIFont *font, NSString* text );
 805
 806 #endif
 807
 808 class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
 809 {
 810 public:
 811     wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
 812     ~wxMacCoreGraphicsFontData();
 813
 814 #if wxOSX_USE_ATSU_TEXT
 815     virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
 816 #endif
 817 #if wxOSX_USE_CORE_TEXT
 818     CTFontRef GetCTFont() const { return m_ctFont ; }
 819 #endif
 820     wxColour GetColour() const { return m_colour ; }
 821
 822     bool GetUnderlined() const { return m_underlined ; }
 823 #if wxOSX_USE_IPHONE
 824     UIFont* GetUIFont() const { return m_uiFont; }
 825 #endif
 826 private :
 827     wxColour m_colour;
 828     bool m_underlined;
 829 #if wxOSX_USE_ATSU_TEXT
 830     ATSUStyle m_macATSUIStyle;
 831 #endif
 832 #if wxOSX_USE_CORE_TEXT
 833     wxCFRef< CTFontRef > m_ctFont;
 834 #endif
 835 #if wxOSX_USE_IPHONE
 836     UIFont*  m_uiFont;
 837 #endif
 838 };
 839
 840 wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
 841 {
 842     m_colour = col;
 843     m_underlined = font.GetUnderlined();
 844
 845 #if wxOSX_USE_CORE_TEXT
 846     m_ctFont.reset( wxMacCreateCTFont( font ) );
 847 #endif
 848 #if wxOSX_USE_IPHONE
 849     m_uiFont = CreateUIFont(font);
 850     wxMacCocoaRetain( m_uiFont );
 851 #endif
 852 #if wxOSX_USE_ATSU_TEXT
 853     OSStatus status = noErr;
 854     m_macATSUIStyle = NULL;
 855
 856     status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
 857
 858     wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
 859
 860     // we need the scale here ...
 861
 862     Fixed atsuSize = IntToFixed( int( 1 * font.MacGetFontSize()) );
 863     RGBColor atsuColor ;
 864     col.GetRGBColor( &atsuColor );
 865     ATSUAttributeTag atsuTags[] =
 866     {
 867             kATSUSizeTag ,
 868             kATSUColorTag ,
 869     };
 870     ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 871     {
 872             sizeof( Fixed ) ,
 873             sizeof( RGBColor ) ,
 874     };
 875     ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 876     {
 877             &atsuSize ,
 878             &atsuColor ,
 879     };
 880
 881     status = ::ATSUSetAttributes(
 882         m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
 883         atsuTags, atsuSizes, atsuValues);
 884
 885     wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
 886 #endif
 887 }
 888
 889 wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
 890 {
 891 #if wxOSX_USE_CORE_TEXT
 892 #endif
 893 #if wxOSX_USE_ATSU_TEXT
 894     if ( m_macATSUIStyle )
 895     {
 896         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 897         m_macATSUIStyle = NULL;
 898     }
 899 #endif
 900 #if wxOSX_USE_IPHONE
 901     wxMacCocoaRelease( m_uiFont );
 902 #endif
 903 }
 904
 905 class wxMacCoreGraphicsBitmapData : public wxGraphicsObjectRefData
 906 {
 907 public:
 908     wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome );
 909     ~wxMacCoreGraphicsBitmapData();
 910
 911     virtual CGImageRef GetBitmap() { return m_bitmap; }
 912     bool IsMonochrome() { return m_monochrome; }
 913 private :
 914     CGImageRef m_bitmap;
 915     bool m_monochrome;
 916 };
 917
 918 wxMacCoreGraphicsBitmapData::wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome ) : wxGraphicsObjectRefData( renderer ),
 919     m_bitmap(bitmap), m_monochrome(monochrome)
 920 {
 921 }
 922
 923 wxMacCoreGraphicsBitmapData::~wxMacCoreGraphicsBitmapData()
 924 {
 925     CGImageRelease( m_bitmap );
 926 }
 927
 928 //
 929 // Graphics Matrix
 930 //
 931
 932 //-----------------------------------------------------------------------------
 933 // wxMacCoreGraphicsMatrix declaration
 934 //-----------------------------------------------------------------------------
 935
 936 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
 937 {
 938 public :
 939     wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
 940
 941     virtual ~wxMacCoreGraphicsMatrixData() ;
 942
 943     virtual wxGraphicsObjectRefData *Clone() const ;
 944
 945     // concatenates the matrix
 946     virtual void Concat( const wxGraphicsMatrixData *t );
 947
 948     // sets the matrix to the respective values
 949     virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
 950         wxDouble tx=0.0, wxDouble ty=0.0);
 951
 952     // gets the component valuess of the matrix
 953     virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL,  wxDouble* c=NULL,
 954                      wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
 955
 956     // makes this the inverse matrix
 957     virtual void Invert();
 958
 959     // returns true if the elements of the transformation matrix are equal ?
 960     virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
 961
 962     // return true if this is the identity matrix
 963     virtual bool IsIdentity() const;
 964
 965     //
 966     // transformation
 967     //
 968
 969     // add the translation to this matrix
 970     virtual void Translate( wxDouble dx , wxDouble dy );
 971
 972     // add the scale to this matrix
 973     virtual void Scale( wxDouble xScale , wxDouble yScale );
 974
 975     // add the rotation to this matrix (radians)
 976     virtual void Rotate( wxDouble angle );
 977
 978     //
 979     // apply the transforms
 980     //
 981
 982     // applies that matrix to the point
 983     virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
 984
 985     // applies the matrix except for translations
 986     virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
 987
 988     // returns the native representation
 989     virtual void * GetNativeMatrix() const;
 990
 991 private :
 992     CGAffineTransform m_matrix;
 993 } ;
 994
 995 //-----------------------------------------------------------------------------
 996 // wxMacCoreGraphicsMatrix implementation
 997 //-----------------------------------------------------------------------------
 998
 999 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
1000 {
1001 }
1002
1003 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
1004 {
1005 }
1006
1007 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
1008 {
1009     wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
1010     m->m_matrix = m_matrix ;
1011     return m;
1012 }
1013
1014 // concatenates the matrix
1015 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
1016 {
1017     m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
1018 }
1019
1020 // sets the matrix to the respective values
1021 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
1022     wxDouble tx, wxDouble ty)
1023 {
1024     m_matrix = CGAffineTransformMake((CGFloat) a,(CGFloat) b,(CGFloat) c,(CGFloat) d,(CGFloat) tx,(CGFloat) ty);
1025 }
1026
1027 // gets the component valuess of the matrix
1028 void wxMacCoreGraphicsMatrixData::Get(wxDouble* a, wxDouble* b,  wxDouble* c,
1029                                       wxDouble* d, wxDouble* tx, wxDouble* ty) const
1030 {
1031     if (a)  *a = m_matrix.a;
1032     if (b)  *b = m_matrix.b;
1033     if (c)  *c = m_matrix.c;
1034     if (d)  *d = m_matrix.d;
1035     if (tx) *tx= m_matrix.tx;
1036     if (ty) *ty= m_matrix.ty;
1037 }
1038
1039 // makes this the inverse matrix
1040 void wxMacCoreGraphicsMatrixData::Invert()
1041 {
1042     m_matrix = CGAffineTransformInvert( m_matrix );
1043 }
1044
1045 // returns true if the elements of the transformation matrix are equal ?
1046 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
1047 {
1048     return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
1049 }
1050
1051 // return true if this is the identity matrix
1052 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
1053 {
1054     return ( m_matrix.a == 1 && m_matrix.d == 1 &&
1055         m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
1056 }
1057
1058 //
1059 // transformation
1060 //
1061
1062 // add the translation to this matrix
1063 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
1064 {
1065     m_matrix = CGAffineTransformTranslate( m_matrix, (CGFloat) dx, (CGFloat) dy);
1066 }
1067
1068 // add the scale to this matrix
1069 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1070 {
1071     m_matrix = CGAffineTransformScale( m_matrix, (CGFloat) xScale, (CGFloat) yScale);
1072 }
1073
1074 // add the rotation to this matrix (radians)
1075 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
1076 {
1077     m_matrix = CGAffineTransformRotate( m_matrix, (CGFloat) angle);
1078 }
1079
1080 //
1081 // apply the transforms
1082 //
1083
1084 // applies that matrix to the point
1085 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1086 {
1087     CGPoint pt = CGPointApplyAffineTransform( CGPointMake((CGFloat) *x,(CGFloat) *y), m_matrix);
1088
1089     *x = pt.x;
1090     *y = pt.y;
1091 }
1092
1093 // applies the matrix except for translations
1094 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1095 {
1096     CGSize sz = CGSizeApplyAffineTransform( CGSizeMake((CGFloat) *dx,(CGFloat) *dy) , m_matrix );
1097     *dx = sz.width;
1098     *dy = sz.height;
1099 }
1100
1101 // returns the native representation
1102 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
1103 {
1104     return (void*) &m_matrix;
1105 }
1106
1107 //
1108 // Graphics Path
1109 //
1110
1111 //-----------------------------------------------------------------------------
1112 // wxMacCoreGraphicsPath declaration
1113 //-----------------------------------------------------------------------------
1114
1115 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
1116 {
1117 public :
1118     wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
1119
1120     ~wxMacCoreGraphicsPathData();
1121
1122     virtual wxGraphicsObjectRefData *Clone() const;
1123
1124     // begins a new subpath at (x,y)
1125     virtual void MoveToPoint( wxDouble x, wxDouble y );
1126
1127     // adds a straight line from the current point to (x,y)
1128     virtual void AddLineToPoint( wxDouble x, wxDouble y );
1129
1130     // adds a cubic Bezier curve from the current point, using two control points and an end point
1131     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
1132
1133     // closes the current sub-path
1134     virtual void CloseSubpath();
1135
1136     // gets the last point of the current path, (0,0) if not yet set
1137     virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
1138
1139     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1140     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
1141
1142     //
1143     // These are convenience functions which - if not available natively will be assembled
1144     // using the primitives from above
1145     //
1146
1147     // adds a quadratic Bezier curve from the current point, using a control point and an end point
1148     virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
1149
1150     // appends a rectangle as a new closed subpath
1151     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1152
1153     // appends an ellipsis as a new closed subpath fitting the passed rectangle
1154     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1155
1156     // 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)
1157     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1158
1159     // adds another path
1160     virtual void AddPath( const wxGraphicsPathData* path );
1161
1162     // returns the native path
1163     virtual void * GetNativePath() const { return m_path; }
1164
1165     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1166     virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1167
1168     // transforms each point of this path by the matrix
1169     virtual void Transform( const wxGraphicsMatrixData* matrix );
1170
1171     // gets the bounding box enclosing all points (possibly including control points)
1172     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
1173
1174     virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
1175 private :
1176     CGMutablePathRef m_path;
1177 };
1178
1179 //-----------------------------------------------------------------------------
1180 // wxMacCoreGraphicsPath implementation
1181 //-----------------------------------------------------------------------------
1182
1183 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1184 {
1185     if ( path )
1186         m_path = path;
1187     else
1188         m_path = CGPathCreateMutable();
1189 }
1190
1191 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1192 {
1193     CGPathRelease( m_path );
1194 }
1195
1196 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1197 {
1198     wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1199     return clone ;
1200 }
1201
1202
1203 // opens (starts) a new subpath
1204 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1205 {
1206     CGPathMoveToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1207 }
1208
1209 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1210 {
1211     CGPathAddLineToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1212 }
1213
1214 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1215 {
1216     CGPathAddCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) cx2, (CGFloat) cy2, (CGFloat) x , (CGFloat) y );
1217 }
1218
1219 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1220 {
1221     CGPathAddQuadCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) x , (CGFloat) y );
1222 }
1223
1224 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1225 {
1226     CGRect cgRect = { { (CGFloat) x , (CGFloat) y } , { (CGFloat) w , (CGFloat) h } };
1227     CGPathAddRect( m_path , NULL , cgRect );
1228 }
1229
1230 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1231 {
1232     CGPathAddArc( m_path , NULL , (CGFloat) x , (CGFloat) y , (CGFloat) r , (CGFloat) 0.0 , (CGFloat) (2 * M_PI) , true );
1233 }
1234
1235 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1236 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1237 {
1238     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1239     CGPathAddArc( m_path, NULL , (CGFloat) x, (CGFloat) y, (CGFloat) r, (CGFloat) startAngle, (CGFloat) endAngle, !clockwise);
1240 }
1241
1242 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1243 {
1244     CGPathAddArcToPoint( m_path, NULL , (CGFloat) x1, (CGFloat) y1, (CGFloat) x2, (CGFloat) y2, (CGFloat) r);
1245 }
1246
1247 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1248 {
1249     CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1250 }
1251
1252 // closes the current subpath
1253 void wxMacCoreGraphicsPathData::CloseSubpath()
1254 {
1255     CGPathCloseSubpath( m_path );
1256 }
1257
1258 // gets the last point of the current path, (0,0) if not yet set
1259 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1260 {
1261     CGPoint p = CGPathGetCurrentPoint( m_path );
1262     *x = p.x;
1263     *y = p.y;
1264 }
1265
1266 // transforms each point of this path by the matrix
1267 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1268 {
1269     CGMutablePathRef p = CGPathCreateMutable() ;
1270     CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1271     CGPathRelease( m_path );
1272     m_path = p;
1273 }
1274
1275 // gets the bounding box enclosing all points (possibly including control points)
1276 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1277 {
1278     CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1279     *x = bounds.origin.x;
1280     *y = bounds.origin.y;
1281     *w = bounds.size.width;
1282     *h = bounds.size.height;
1283 }
1284
1285 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle) const
1286 {
1287     return CGPathContainsPoint( m_path, NULL, CGPointMake((CGFloat) x,(CGFloat) y), fillStyle == wxODDEVEN_RULE );
1288 }
1289
1290 //
1291 // Graphics Context
1292 //
1293
1294 //-----------------------------------------------------------------------------
1295 // wxMacCoreGraphicsContext declaration
1296 //-----------------------------------------------------------------------------
1297
1298 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1299 {
1300 public:
1301     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1302
1303 #if wxOSX_USE_CARBON
1304     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1305 #endif
1306
1307     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1308
1309     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1310
1311     wxMacCoreGraphicsContext();
1312
1313     ~wxMacCoreGraphicsContext();
1314
1315     void Init();
1316
1317     // returns the size of the graphics context in device coordinates
1318     virtual void GetSize( wxDouble* width, wxDouble* height);
1319
1320     virtual void StartPage( wxDouble width, wxDouble height );
1321
1322     virtual void EndPage();
1323
1324     virtual void Flush();
1325
1326     // push the current state of the context, ie the transformation matrix on a stack
1327     virtual void PushState();
1328
1329     // pops a stored state from the stack
1330     virtual void PopState();
1331
1332     // clips drawings to the region
1333     virtual void Clip( const wxRegion &region );
1334
1335     // clips drawings to the rect
1336     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1337
1338     // resets the clipping to original extent
1339     virtual void ResetClip();
1340
1341     virtual void * GetNativeContext();
1342
1343     virtual bool SetAntialiasMode(wxAntialiasMode antialias);
1344
1345     virtual bool SetCompositionMode(wxCompositionMode op);
1346
1347     virtual void BeginLayer(wxDouble opacity);
1348
1349     virtual void EndLayer();
1350
1351     //
1352     // transformation
1353     //
1354
1355     // translate
1356     virtual void Translate( wxDouble dx , wxDouble dy );
1357
1358     // scale
1359     virtual void Scale( wxDouble xScale , wxDouble yScale );
1360
1361     // rotate (radians)
1362     virtual void Rotate( wxDouble angle );
1363
1364     // concatenates this transform with the current transform of this context
1365     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1366
1367     // sets the transform of this context
1368     virtual void SetTransform( const wxGraphicsMatrix& matrix );
1369
1370     // gets the matrix of this context
1371     virtual wxGraphicsMatrix GetTransform() const;
1372     //
1373     // setting the paint
1374     //
1375
1376     // strokes along a path with the current pen
1377     virtual void StrokePath( const wxGraphicsPath &path );
1378
1379     // fills a path with the current brush
1380     virtual void FillPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1381
1382     // draws a path by first filling and then stroking
1383     virtual void DrawPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1384
1385     virtual bool ShouldOffset() const
1386     {
1387         int penwidth = 0 ;
1388         if ( !m_pen.IsNull() )
1389         {
1390             penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1391             if ( penwidth == 0 )
1392                 penwidth = 1;
1393         }
1394         return ( penwidth % 2 ) == 1;
1395     }
1396     //
1397     // text
1398     //
1399
1400     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1401         wxDouble *descent, wxDouble *externalLeading ) const;
1402
1403     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1404
1405     //
1406     // image support
1407     //
1408
1409     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1410
1411     virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1412
1413     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1414
1415     void SetNativeContext( CGContextRef cg );
1416
1417     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsContext)
1418
1419 private:
1420     bool EnsureIsValid();
1421
1422     virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
1423     virtual void DoDrawRotatedText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1424
1425     CGContextRef m_cgContext;
1426 #if wxOSX_USE_CARBON
1427     WindowRef m_windowRef;
1428 #else
1429     WXWidget m_view;
1430 #endif
1431     bool m_contextSynthesized;
1432     CGAffineTransform m_windowTransform;
1433     wxDouble m_width;
1434     wxDouble m_height;
1435     bool m_invisible;
1436
1437 #if wxOSX_USE_COCOA_OR_CARBON
1438     wxCFRef<HIShapeRef> m_clipRgn;
1439 #endif
1440 };
1441
1442 //-----------------------------------------------------------------------------
1443 // device context implementation
1444 //
1445 // more and more of the dc functionality should be implemented by calling
1446 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1447 // also coordinate conversions should be moved to native matrix ops
1448 //-----------------------------------------------------------------------------
1449
1450 // we always stock two context states, one at entry, to be able to preserve the
1451 // state we were called with, the other one after changing to HI Graphics orientation
1452 // (this one is used for getting back clippings etc)
1453
1454 //-----------------------------------------------------------------------------
1455 // wxMacCoreGraphicsContext implementation
1456 //-----------------------------------------------------------------------------
1457
1458 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1459
1460 class wxQuartzOffsetHelper
1461 {
1462 public :
1463     wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1464     {
1465         m_cg = cg;
1466         m_offset = offset;
1467         if ( m_offset )
1468             CGContextTranslateCTM( m_cg, (CGFloat) 0.5, (CGFloat) 0.5 );
1469     }
1470     ~wxQuartzOffsetHelper( )
1471     {
1472         if ( m_offset )
1473             CGContextTranslateCTM( m_cg, (CGFloat) -0.5, (CGFloat) -0.5 );
1474     }
1475 public :
1476     CGContextRef m_cg;
1477     bool m_offset;
1478 } ;
1479
1480 void wxMacCoreGraphicsContext::Init()
1481 {
1482     m_cgContext = NULL;
1483     m_contextSynthesized = false;
1484     m_width = 0;
1485     m_height = 0;
1486 #if wxOSX_USE_CARBON
1487     m_windowRef = NULL;
1488 #endif
1489 #if wxOSX_USE_COCOA_OR_IPHONE
1490     m_view = NULL;
1491 #endif
1492     m_invisible = false;
1493 }
1494
1495 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer)
1496 {
1497     Init();
1498     SetNativeContext(cgcontext);
1499     m_width = width;
1500     m_height = height;
1501 }
1502
1503 #if wxOSX_USE_CARBON
1504 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1505 {
1506     Init();
1507     m_windowRef = window;
1508 }
1509 #endif
1510
1511 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1512 {
1513     Init();
1514
1515     wxSize sz = window->GetSize();
1516     m_width = sz.x;
1517     m_height = sz.y;
1518
1519 #if wxOSX_USE_COCOA_OR_IPHONE
1520     m_view = window->GetHandle();
1521
1522     if ( !((wxWidgetCocoaImpl*) window->GetPeer())->IsFlipped() )
1523     {
1524         m_windowTransform = CGAffineTransformMakeTranslation( 0 , m_height );
1525         m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1526     }
1527     else
1528     {
1529         m_windowTransform = CGAffineTransformIdentity;
1530     }
1531 #else
1532     int originX , originY;
1533     originX = originY = 0;
1534     Rect bounds = { 0,0,0,0 };
1535     m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1536     window->MacWindowToRootWindow( &originX , &originY );
1537     GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1538     m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1539     m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1540     m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1541 #endif
1542 }
1543
1544 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1545 {
1546     Init();
1547 }
1548
1549 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1550 {
1551     Init();
1552     wxLogDebug(wxT("Illegal Constructor called"));
1553 }
1554
1555 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1556 {
1557     SetNativeContext(NULL);
1558 }
1559
1560 void wxMacCoreGraphicsContext::GetSize( wxDouble* width, wxDouble* height)
1561 {
1562     *width = m_width;
1563     *height = m_height;
1564 }
1565
1566
1567 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1568 {
1569     CGRect r;
1570     if ( width != 0 && height != 0)
1571         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) width  , (CGFloat) height );
1572     else
1573         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) m_width  , (CGFloat) m_height );
1574
1575     CGContextBeginPage(m_cgContext,  &r );
1576 //    CGContextTranslateCTM( m_cgContext , 0 ,  height == 0 ? m_height : height );
1577 //    CGContextScaleCTM( m_cgContext , 1 , -1 );
1578 }
1579
1580 void wxMacCoreGraphicsContext::EndPage()
1581 {
1582     CGContextEndPage(m_cgContext);
1583 }
1584
1585 void wxMacCoreGraphicsContext::Flush()
1586 {
1587     CGContextFlush(m_cgContext);
1588 }
1589
1590 bool wxMacCoreGraphicsContext::EnsureIsValid()
1591 {
1592     if ( !m_cgContext )
1593     {
1594         if (m_invisible)
1595             return false;
1596
1597 #if wxOSX_USE_COCOA_OR_IPHONE
1598         if ( wxOSXLockFocus(m_view) )
1599         {
1600             m_cgContext = wxOSXGetContextFromCurrentNSContext();
1601             wxASSERT_MSG( m_cgContext != NULL, _T("Unable to retrieve drawing context from View"));
1602         }
1603         else
1604         {
1605             m_invisible = true;
1606         }
1607 #endif
1608 #if wxOSX_USE_CARBON
1609         OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1610         if ( status != noErr )
1611         {
1612             wxFAIL_MSG("Cannot nest wxDCs on the same window");
1613         }
1614 #endif
1615         if ( m_cgContext )
1616         {
1617             CGContextConcatCTM( m_cgContext, m_windowTransform );
1618             CGContextSaveGState( m_cgContext );
1619             m_contextSynthesized = true;
1620             if ( m_clipRgn.get() )
1621             {
1622                 // the clip region is in device coordinates, so we convert this again to user coordinates
1623                 wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1624                 CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero,m_windowTransform);
1625                 HIShapeOffset( hishape, -transformedOrigin.x, -transformedOrigin.y );
1626                 // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1627                 if ( HIShapeIsEmpty(hishape))
1628                 {
1629                     CGRect empty = CGRectMake( 0,0,0,0 );
1630                     CGContextClipToRect( m_cgContext, empty );
1631                 }
1632                 else
1633                 {
1634                     HIShapeReplacePathInCGContext( hishape, m_cgContext );
1635                     CGContextClip( m_cgContext );
1636                 }
1637             }
1638             CGContextSaveGState( m_cgContext );
1639
1640 #if 0 // turn on for debugging of clientdc
1641             static float color = 0.5 ;
1642             static int channel = 0 ;
1643             CGRect bounds = CGRectMake(-1000,-1000,2000,2000);
1644             CGContextSetRGBFillColor( m_cgContext, channel == 0 ? color : 0.5 ,
1645                 channel == 1 ? color : 0.5 , channel == 2 ? color : 0.5 , 1 );
1646             CGContextFillRect( m_cgContext, bounds );
1647             color += 0.1 ;
1648             if ( color > 0.9 )
1649             {
1650                 color = 0.5 ;
1651                 channel++ ;
1652                 if ( channel == 3 )
1653                     channel = 0 ;
1654             }
1655 #endif
1656         }
1657     }
1658     return m_cgContext != NULL;
1659 }
1660
1661 bool wxMacCoreGraphicsContext::SetAntialiasMode(wxAntialiasMode antialias)
1662 {
1663     if (EnsureIsValid()==false)
1664         return true;
1665
1666     if (m_antialias == antialias)
1667         return true;
1668
1669     m_antialias = antialias;
1670
1671     bool antialiasMode;
1672     switch (antialias)
1673     {
1674         case wxANTIALIAS_DEFAULT:
1675             antialiasMode = true;
1676             break;
1677         case wxANTIALIAS_NONE:
1678             antialiasMode = false;
1679             break;
1680         default:
1681             return false;
1682     }
1683     CGContextSetShouldAntialias(m_cgContext, antialiasMode);
1684     return true;
1685 }
1686
1687 bool wxMacCoreGraphicsContext::SetCompositionMode(wxCompositionMode op)
1688 {
1689     if (EnsureIsValid()==false)
1690         return true;
1691
1692     if ( m_composition == op )
1693         return true;
1694
1695     m_composition = op;
1696
1697     if (m_composition == wxCOMPOSITION_DEST)
1698         return true;
1699
1700 #if wxOSX_USE_COCOA_OR_CARBON
1701 #if 1 // MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
1702     if ( UMAGetSystemVersion() < 0x1060 )
1703     {
1704         CGCompositeOperation cop = kCGCompositeOperationSourceOver;
1705         CGBlendMode mode = kCGBlendModeNormal;
1706         switch( op )
1707         {
1708         case wxCOMPOSITION_CLEAR:
1709             cop = kCGCompositeOperationClear;
1710             break;
1711         case wxCOMPOSITION_SOURCE:
1712             cop = kCGCompositeOperationCopy;
1713             break;
1714         case wxCOMPOSITION_OVER:
1715             mode = kCGBlendModeNormal;
1716             break;
1717         case wxCOMPOSITION_IN:
1718             cop = kCGCompositeOperationSourceIn;
1719             break;
1720         case wxCOMPOSITION_OUT:
1721             cop = kCGCompositeOperationSourceOut;
1722             break;
1723         case wxCOMPOSITION_ATOP:
1724             cop = kCGCompositeOperationSourceAtop;
1725             break;
1726         case wxCOMPOSITION_DEST_OVER:
1727             cop = kCGCompositeOperationDestinationOver;
1728             break;
1729         case wxCOMPOSITION_DEST_IN:
1730             cop = kCGCompositeOperationDestinationIn;
1731             break;
1732         case wxCOMPOSITION_DEST_OUT:
1733             cop = kCGCompositeOperationDestinationOut;
1734             break;
1735         case wxCOMPOSITION_DEST_ATOP:
1736            cop = kCGCompositeOperationDestinationAtop;
1737             break;
1738         case wxCOMPOSITION_XOR:
1739             cop = kCGCompositeOperationXOR;
1740             break;
1741         case wxCOMPOSITION_ADD:
1742             mode = kCGBlendModePlusLighter ;
1743             break;
1744         default:
1745             return false;
1746         }
1747         if ( cop != kCGCompositeOperationSourceOver )
1748             CGContextSetCompositeOperation(m_cgContext, cop);
1749         else
1750             CGContextSetBlendMode(m_cgContext, mode);
1751     }
1752     else
1753 #endif
1754 #endif
1755     {
1756         CGBlendMode mode = kCGBlendModeNormal;
1757         switch( op )
1758         {
1759         case wxCOMPOSITION_CLEAR:
1760             mode = kCGBlendModeClear;
1761             break;
1762         case wxCOMPOSITION_SOURCE:
1763             mode = kCGBlendModeCopy;
1764             break;
1765         case wxCOMPOSITION_OVER:
1766             mode = kCGBlendModeNormal;
1767             break;
1768         case wxCOMPOSITION_IN:
1769             mode = kCGBlendModeSourceIn;
1770             break;
1771         case wxCOMPOSITION_OUT:
1772             mode = kCGBlendModeSourceOut;
1773             break;
1774         case wxCOMPOSITION_ATOP:
1775             mode = kCGBlendModeSourceAtop;
1776             break;
1777         case wxCOMPOSITION_DEST_OVER:
1778             mode = kCGBlendModeDestinationOver;
1779             break;
1780         case wxCOMPOSITION_DEST_IN:
1781             mode = kCGBlendModeDestinationIn;
1782             break;
1783         case wxCOMPOSITION_DEST_OUT:
1784             mode = kCGBlendModeDestinationOut;
1785             break;
1786         case wxCOMPOSITION_DEST_ATOP:
1787            mode = kCGBlendModeDestinationAtop;
1788             break;
1789         case wxCOMPOSITION_XOR:
1790             mode = kCGBlendModeXOR;
1791             break;
1792
1793         case wxCOMPOSITION_ADD:
1794             mode = kCGBlendModePlusLighter ;
1795             break;
1796         default:
1797             return false;
1798         }
1799         CGContextSetBlendMode(m_cgContext, mode);
1800     }
1801     return true;
1802 }
1803
1804 void wxMacCoreGraphicsContext::BeginLayer(wxDouble opacity)
1805 {
1806     CGContextSaveGState(m_cgContext);
1807     CGContextSetAlpha(m_cgContext, opacity);
1808     CGContextBeginTransparencyLayer(m_cgContext, 0);
1809 }
1810
1811 void wxMacCoreGraphicsContext::EndLayer()
1812 {
1813     CGContextEndTransparencyLayer(m_cgContext);
1814     CGContextRestoreGState(m_cgContext);
1815 }
1816
1817 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1818 {
1819 #if wxOSX_USE_COCOA_OR_CARBON
1820     if( m_cgContext )
1821     {
1822         wxCFRef<HIShapeRef> shape = wxCFRefFromGet(region.GetWXHRGN());
1823         // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1824         if ( HIShapeIsEmpty(shape))
1825         {
1826             CGRect empty = CGRectMake( 0,0,0,0 );
1827             CGContextClipToRect( m_cgContext, empty );
1828         }
1829         else
1830         {
1831             HIShapeReplacePathInCGContext( shape, m_cgContext );
1832             CGContextClip( m_cgContext );
1833         }
1834     }
1835     else
1836     {
1837         // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1838         // to regions we try at least to have correct translations
1839         HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1840
1841         CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1842         HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1843         m_clipRgn.reset(mutableShape);
1844     }
1845 #else
1846     // allow usage as measuring context
1847     // wxASSERT_MSG( m_cgContext != NULL, "Needs a valid context for clipping" );
1848 #endif
1849 }
1850
1851 // clips drawings to the rect
1852 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1853 {
1854     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1855     if ( m_cgContext )
1856     {
1857         CGContextClipToRect( m_cgContext, r );
1858     }
1859     else
1860     {
1861 #if wxOSX_USE_COCOA_OR_CARBON
1862         // the clipping itself must be stored as device coordinates, otherwise
1863         // we cannot apply it back correctly
1864         r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
1865         m_clipRgn.reset(HIShapeCreateWithRect(&r));
1866 #else
1867     // allow usage as measuring context
1868     // wxFAIL_MSG( "Needs a valid context for clipping" );
1869 #endif
1870     }
1871 }
1872
1873     // resets the clipping to original extent
1874 void wxMacCoreGraphicsContext::ResetClip()
1875 {
1876     if ( m_cgContext )
1877     {
1878         // there is no way for clearing the clip, we can only revert to the stored
1879         // state, but then we have to make sure everything else is NOT restored
1880         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1881         CGContextRestoreGState( m_cgContext );
1882         CGContextSaveGState( m_cgContext );
1883         CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
1884         transformNew = CGAffineTransformInvert( transformNew ) ;
1885         CGContextConcatCTM( m_cgContext, transformNew);
1886         CGContextConcatCTM( m_cgContext, transform);
1887     }
1888     else
1889     {
1890 #if wxOSX_USE_COCOA_OR_CARBON
1891         m_clipRgn.reset();
1892 #else
1893     // allow usage as measuring context
1894     // wxFAIL_MSG( "Needs a valid context for clipping" );
1895 #endif
1896     }
1897 }
1898
1899 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1900 {
1901     if ( m_pen.IsNull() )
1902         return ;
1903
1904     if (EnsureIsValid()==false)
1905         return;
1906
1907     if (m_composition == wxCOMPOSITION_DEST)
1908         return;
1909
1910     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1911
1912     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1913     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1914     CGContextStrokePath( m_cgContext );
1915 }
1916
1917 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1918 {
1919     if (EnsureIsValid()==false)
1920         return;
1921
1922     if (m_composition == wxCOMPOSITION_DEST)
1923         return;
1924
1925     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1926     {
1927         // when using shading, we cannot draw pen and brush at the same time
1928         // revert to the base implementation of first filling and then stroking
1929         wxGraphicsContext::DrawPath( path, fillStyle );
1930         return;
1931     }
1932
1933     CGPathDrawingMode mode = kCGPathFill ;
1934     if ( m_brush.IsNull() )
1935     {
1936         if ( m_pen.IsNull() )
1937             return;
1938         else
1939             mode = kCGPathStroke;
1940     }
1941     else
1942     {
1943         if ( m_pen.IsNull() )
1944         {
1945             if ( fillStyle == wxODDEVEN_RULE )
1946                 mode = kCGPathEOFill;
1947             else
1948                 mode = kCGPathFill;
1949         }
1950         else
1951         {
1952             if ( fillStyle == wxODDEVEN_RULE )
1953                 mode = kCGPathEOFillStroke;
1954             else
1955                 mode = kCGPathFillStroke;
1956         }
1957     }
1958
1959     if ( !m_brush.IsNull() )
1960         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1961     if ( !m_pen.IsNull() )
1962         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1963
1964     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1965
1966     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1967     CGContextDrawPath( m_cgContext , mode );
1968 }
1969
1970 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1971 {
1972     if ( m_brush.IsNull() )
1973         return;
1974
1975     if (EnsureIsValid()==false)
1976         return;
1977
1978     if (m_composition == wxCOMPOSITION_DEST)
1979         return;
1980
1981     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1982     {
1983         CGContextSaveGState( m_cgContext );
1984         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1985         CGContextClip( m_cgContext );
1986         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1987         CGContextRestoreGState( m_cgContext);
1988     }
1989     else
1990     {
1991         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1992         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1993         if ( fillStyle == wxODDEVEN_RULE )
1994             CGContextEOFillPath( m_cgContext );
1995         else
1996             CGContextFillPath( m_cgContext );
1997     }
1998 }
1999
2000 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
2001 {
2002     // we allow either setting or clearing but not replacing
2003     wxASSERT( m_cgContext == NULL || cg == NULL );
2004
2005     if ( m_cgContext )
2006     {
2007         CGContextRestoreGState( m_cgContext );
2008         CGContextRestoreGState( m_cgContext );
2009         if ( m_contextSynthesized )
2010         {
2011             // TODO: in case of performance problems, try issuing this not too
2012             // frequently (half of refresh rate)
2013             CGContextFlush(m_cgContext);
2014 #if wxOSX_USE_CARBON
2015             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
2016 #endif
2017 #if wxOSX_USE_COCOA_OR_IPHONE
2018             wxOSXUnlockFocus(m_view);
2019 #endif
2020         }
2021         else
2022             CGContextRelease(m_cgContext);
2023     }
2024
2025     m_cgContext = cg;
2026
2027     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
2028     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
2029     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
2030     // for this one operation.
2031
2032     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
2033     // can be removed.
2034     if (m_cgContext)
2035     {
2036         CGContextRetain(m_cgContext);
2037         CGContextSaveGState( m_cgContext );
2038         CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
2039         CGContextSaveGState( m_cgContext );
2040         m_contextSynthesized = false;
2041     }
2042 }
2043
2044 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
2045 {
2046     if ( m_cgContext )
2047         CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
2048     else
2049         m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
2050 }
2051
2052 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
2053 {
2054     if ( m_cgContext )
2055         CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
2056     else
2057         m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
2058 }
2059
2060 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
2061 {
2062     if ( m_cgContext )
2063         CGContextRotateCTM( m_cgContext , (CGFloat) angle );
2064     else
2065         m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
2066 }
2067
2068 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2069 {
2070     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
2071     DrawBitmap(bitmap, x, y, w, h);
2072 }
2073
2074 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2075 {
2076     if (EnsureIsValid()==false)
2077         return;
2078
2079     if (m_composition == wxCOMPOSITION_DEST)
2080         return;
2081
2082 #ifdef __WXMAC__
2083     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2084     CGImageRef image = refdata->GetBitmap();
2085     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2086     if ( refdata->IsMonochrome() == 1 )
2087     {
2088         // is is a mask, the '1' in the mask tell where to draw the current brush
2089         if (  !m_brush.IsNull() )
2090         {
2091             if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2092             {
2093                 // TODO clip to mask
2094             /*
2095                 CGContextSaveGState( m_cgContext );
2096                 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2097                 CGContextClip( m_cgContext );
2098                 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2099                 CGContextRestoreGState( m_cgContext);
2100             */
2101             }
2102             else
2103             {
2104                 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2105                 wxMacDrawCGImage( m_cgContext , &r , image );
2106             }
2107         }
2108     }
2109     else
2110     {
2111         wxMacDrawCGImage( m_cgContext , &r , image );
2112     }
2113 #endif
2114 }
2115
2116 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2117 {
2118     if (EnsureIsValid()==false)
2119         return;
2120
2121     if (m_composition == wxCOMPOSITION_DEST)
2122         return;
2123
2124     CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
2125     CGContextSaveGState( m_cgContext );
2126     CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
2127     CGContextScaleCTM( m_cgContext, 1, -1 );
2128 #if wxOSX_USE_COCOA_OR_CARBON
2129     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
2130         NULL , kPlotIconRefNormalFlags , icon.GetHICON() );
2131 #endif
2132     CGContextRestoreGState( m_cgContext );
2133 }
2134
2135 void wxMacCoreGraphicsContext::PushState()
2136 {
2137     if (EnsureIsValid()==false)
2138         return;
2139
2140     CGContextSaveGState( m_cgContext );
2141 }
2142
2143 void wxMacCoreGraphicsContext::PopState()
2144 {
2145     if (EnsureIsValid()==false)
2146         return;
2147
2148     CGContextRestoreGState( m_cgContext );
2149 }
2150
2151 void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDouble y )
2152 {
2153     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2154
2155     if (EnsureIsValid()==false)
2156         return;
2157
2158     if (m_composition == wxCOMPOSITION_DEST)
2159         return;
2160
2161 #if wxOSX_USE_CORE_TEXT
2162     if ( UMAGetSystemVersion() >= 0x1050 )
2163     {
2164         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2165         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2166         CTFontRef font = fref->GetCTFont();
2167         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2168         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
2169         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
2170          CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
2171         CFTypeRef values[] = { font, col, underlined };
2172         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2173                                                         WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2174         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2175         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2176
2177         y += CTFontGetAscent(font);
2178
2179         CGContextSaveGState(m_cgContext);
2180         CGContextTranslateCTM(m_cgContext, x, y);
2181         CGContextScaleCTM(m_cgContext, 1, -1);
2182         CGContextSetTextPosition(m_cgContext, 0, 0);
2183         CTLineDraw( line, m_cgContext );
2184         CGContextRestoreGState(m_cgContext);
2185         CFRelease( col );
2186         return;
2187     }
2188 #endif
2189 #if wxOSX_USE_ATSU_TEXT
2190     {
2191         DrawText(str, x, y, 0.0);
2192         return;
2193     }
2194 #endif
2195 #if wxOSX_USE_IPHONE
2196     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2197
2198     CGContextSaveGState(m_cgContext);
2199
2200     CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2201     CGContextSetTextDrawingMode (m_cgContext, kCGTextFill);
2202     CGContextSetFillColorWithColor( m_cgContext, col );
2203
2204     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2205     DrawTextInContext( m_cgContext, CGPointMake( x, y ), fref->GetUIFont() , text.AsNSString() );
2206
2207     CGContextRestoreGState(m_cgContext);
2208     CFRelease( col );
2209 #endif
2210 }
2211
2212 void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
2213                                                  wxDouble x, wxDouble y,
2214                                                  wxDouble angle)
2215 {
2216     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2217
2218     if (EnsureIsValid()==false)
2219         return;
2220
2221     if (m_composition == wxCOMPOSITION_DEST)
2222         return;
2223
2224 #if wxOSX_USE_CORE_TEXT
2225     if ( UMAGetSystemVersion() >= 0x1050 )
2226     {
2227         // default implementation takes care of rotation and calls non rotated DrawText afterwards
2228         wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2229         return;
2230     }
2231 #endif
2232 #if wxOSX_USE_ATSU_TEXT
2233     {
2234         OSStatus status = noErr;
2235         ATSUTextLayout atsuLayout;
2236         wxMacUniCharBuffer unibuf( str );
2237         UniCharCount chars = unibuf.GetChars();
2238
2239         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2240         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2241                                                    &chars , &style , &atsuLayout );
2242
2243         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
2244
2245         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2246         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2247
2248         int iAngle = int( angle * RAD2DEG );
2249         if ( abs(iAngle) > 0 )
2250         {
2251             Fixed atsuAngle = IntToFixed( iAngle );
2252             ATSUAttributeTag atsuTags[] =
2253             {
2254                 kATSULineRotationTag ,
2255             };
2256             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2257             {
2258                 sizeof( Fixed ) ,
2259             };
2260             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2261             {
2262                 &atsuAngle ,
2263             };
2264             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
2265                                              atsuTags, atsuSizes, atsuValues );
2266         }
2267
2268         {
2269             ATSUAttributeTag atsuTags[] =
2270             {
2271                 kATSUCGContextTag ,
2272             };
2273             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2274             {
2275                 sizeof( CGContextRef ) ,
2276             };
2277             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2278             {
2279                 &m_cgContext ,
2280             };
2281             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
2282                                              atsuTags, atsuSizes, atsuValues );
2283         }
2284
2285         ATSUTextMeasurement textBefore, textAfter;
2286         ATSUTextMeasurement ascent, descent;
2287
2288         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2289                                             &textBefore , &textAfter, &ascent , &descent );
2290
2291         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2292
2293         Rect rect;
2294         x += (int)(sin(angle) * FixedToInt(ascent));
2295         y += (int)(cos(angle) * FixedToInt(ascent));
2296
2297         status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2298                                         IntToFixed(x) , IntToFixed(y) , &rect );
2299         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2300
2301         CGContextSaveGState(m_cgContext);
2302         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2303         CGContextScaleCTM(m_cgContext, 1, -1);
2304         status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2305                                 IntToFixed(0) , IntToFixed(0) );
2306
2307         wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2308
2309         CGContextRestoreGState(m_cgContext);
2310
2311         ::ATSUDisposeTextLayout(atsuLayout);
2312
2313         return;
2314     }
2315 #endif
2316 #if wxOSX_USE_IPHONE
2317     // default implementation takes care of rotation and calls non rotated DrawText afterwards
2318     wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2319 #endif
2320 }
2321
2322 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2323                             wxDouble *descent, wxDouble *externalLeading ) const
2324 {
2325     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::GetTextExtent - no valid font set") );
2326
2327     if ( width )
2328         *width = 0;
2329     if ( height )
2330         *height = 0;
2331     if ( descent )
2332         *descent = 0;
2333     if ( externalLeading )
2334         *externalLeading = 0;
2335
2336     if (str.empty())
2337         return;
2338
2339 #if wxOSX_USE_CORE_TEXT
2340     if ( UMAGetSystemVersion() >= 0x1050 )
2341     {
2342         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2343         CTFontRef font = fref->GetCTFont();
2344
2345         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2346         CFStringRef keys[] = { kCTFontAttributeName  };
2347         CFTypeRef values[] = { font };
2348         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2349                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2350         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2351         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2352
2353         CGFloat w, a, d, l;
2354
2355         w = CTLineGetTypographicBounds(line, &a, &d, &l) ;
2356
2357         if ( height )
2358             *height = a+d+l;
2359         if ( descent )
2360             *descent = d;
2361         if ( externalLeading )
2362             *externalLeading = l;
2363         if ( width )
2364             *width = w;
2365         return;
2366     }
2367 #endif
2368 #if wxOSX_USE_ATSU_TEXT
2369     {
2370         OSStatus status = noErr;
2371
2372         ATSUTextLayout atsuLayout;
2373         wxMacUniCharBuffer unibuf( str );
2374         UniCharCount chars = unibuf.GetChars();
2375
2376         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2377         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2378                                                    &chars , &style , &atsuLayout );
2379
2380         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2381
2382         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2383         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2384
2385         ATSUTextMeasurement textBefore, textAfter;
2386         ATSUTextMeasurement textAscent, textDescent;
2387
2388         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2389                                             &textBefore , &textAfter, &textAscent , &textDescent );
2390
2391         if ( height )
2392             *height = FixedToInt(textAscent + textDescent);
2393         if ( descent )
2394             *descent = FixedToInt(textDescent);
2395         if ( externalLeading )
2396             *externalLeading = 0;
2397         if ( width )
2398             *width = FixedToInt(textAfter - textBefore);
2399
2400         ::ATSUDisposeTextLayout(atsuLayout);
2401
2402         return;
2403     }
2404 #endif
2405 #if wxOSX_USE_IPHONE
2406     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2407
2408     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2409     CGSize sz = MeasureTextInContext( fref->GetUIFont() , text.AsNSString() );
2410
2411     if ( height )
2412         *height = sz.height;
2413         /*
2414     if ( descent )
2415         *descent = FixedToInt(textDescent);
2416     if ( externalLeading )
2417         *externalLeading = 0;
2418         */
2419     if ( width )
2420         *width = sz.width;
2421 #endif
2422 }
2423
2424 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2425 {
2426     widths.Empty();
2427     widths.Add(0, text.length());
2428
2429     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2430
2431     if (text.empty())
2432         return;
2433
2434 #if wxOSX_USE_CORE_TEXT
2435     {
2436         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2437         CTFontRef font = fref->GetCTFont();
2438
2439         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2440         CFStringRef keys[] = { kCTFontAttributeName  };
2441         CFTypeRef values[] = { font };
2442         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2443                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2444         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2445         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2446
2447         int chars = text.length();
2448         for ( int pos = 0; pos < (int)chars; pos ++ )
2449         {
2450             widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5;
2451         }
2452
2453         return;
2454     }
2455 #endif
2456 #if wxOSX_USE_ATSU_TEXT
2457     {
2458         OSStatus status = noErr;
2459         ATSUTextLayout atsuLayout;
2460         wxMacUniCharBuffer unibuf( text );
2461         UniCharCount chars = unibuf.GetChars();
2462
2463         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2464         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2465                                           &chars , &style , &atsuLayout );
2466
2467         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2468
2469         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2470         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2471
2472 // new implementation from JS, keep old one just in case
2473 #if 0
2474         for ( int pos = 0; pos < (int)chars; pos ++ )
2475         {
2476             unsigned long actualNumberOfBounds = 0;
2477             ATSTrapezoid glyphBounds;
2478
2479             // We get a single bound, since the text should only require one. If it requires more, there is an issue
2480             OSStatus result;
2481             result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2482                                         kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2483             if (result != noErr || actualNumberOfBounds != 1 )
2484                 return;
2485
2486             widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2487             //unsigned char uch = s[i];
2488         }
2489 #else
2490         ATSLayoutRecord *layoutRecords = NULL;
2491         ItemCount glyphCount = 0;
2492
2493         // Get the glyph extents
2494         OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2495                                                                        0,
2496                                                                        kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2497                                                                        (void **)
2498                                                                        &layoutRecords,
2499                                                                        &glyphCount);
2500         wxASSERT(glyphCount == (text.length()+1));
2501
2502         if ( err == noErr && glyphCount == (text.length()+1))
2503         {
2504             for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2505             {
2506                 widths[pos-1] = FixedToInt( layoutRecords[pos].realPos );
2507             }
2508         }
2509
2510         ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2511                                               kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2512                                               (void **) &layoutRecords);
2513 #endif
2514         ::ATSUDisposeTextLayout(atsuLayout);
2515     }
2516 #endif
2517 #if wxOSX_USE_IPHONE
2518     // TODO core graphics text implementation here
2519 #endif
2520 }
2521
2522 void * wxMacCoreGraphicsContext::GetNativeContext()
2523 {
2524     return m_cgContext;
2525 }
2526
2527 // concatenates this transform with the current transform of this context
2528 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2529 {
2530     if ( m_cgContext )
2531         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2532     else
2533         m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
2534 }
2535
2536 // sets the transform of this context
2537 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2538 {
2539     if ( m_cgContext )
2540     {
2541         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2542         transform = CGAffineTransformInvert( transform ) ;
2543         CGContextConcatCTM( m_cgContext, transform);
2544         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2545     }
2546     else
2547     {
2548         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2549     }
2550 }
2551
2552 // gets the matrix of this context
2553 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2554 {
2555     wxGraphicsMatrix m = CreateMatrix();
2556     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2557         CGContextGetCTM( m_cgContext ));
2558     return m;
2559 }
2560
2561 //
2562 // Renderer
2563 //
2564
2565 //-----------------------------------------------------------------------------
2566 // wxMacCoreGraphicsRenderer declaration
2567 //-----------------------------------------------------------------------------
2568
2569 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2570 {
2571 public :
2572     wxMacCoreGraphicsRenderer() {}
2573
2574     virtual ~wxMacCoreGraphicsRenderer() {}
2575
2576     // Context
2577
2578     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2579     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2580 #if wxUSE_PRINTING_ARCHITECTURE
2581     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2582 #endif
2583
2584     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2585
2586     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2587
2588     virtual wxGraphicsContext * CreateContext( wxWindow* window );
2589
2590     virtual wxGraphicsContext * CreateMeasuringContext();
2591
2592     // Path
2593
2594     virtual wxGraphicsPath CreatePath();
2595
2596     // Matrix
2597
2598     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2599         wxDouble tx=0.0, wxDouble ty=0.0);
2600
2601
2602     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2603
2604     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2605
2606     // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2607     virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2608         const wxColour&c1, const wxColour&c2) ;
2609
2610     // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2611     // with radius r and color cColor
2612     virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2613         const wxColour &oColor, const wxColour &cColor) ;
2614
2615    // sets the font
2616     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2617
2618     // create a native bitmap representation
2619     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2620
2621     // create a native bitmap representation
2622     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
2623 private :
2624     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2625 } ;
2626
2627 //-----------------------------------------------------------------------------
2628 // wxMacCoreGraphicsRenderer implementation
2629 //-----------------------------------------------------------------------------
2630
2631 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2632
2633 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2634
2635 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2636 {
2637     return &gs_MacCoreGraphicsRenderer;
2638 }
2639
2640 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2641 {
2642     const wxDCImpl* impl = dc.GetImpl();
2643     wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2644     if (win_impl)
2645     {
2646         int w, h;
2647         win_impl->GetSize( &w, &h );
2648         CGContextRef cgctx = 0;
2649
2650         wxASSERT_MSG(win_impl->GetWindow(), "Invalid wxWindow in wxMacCoreGraphicsRenderer::CreateContext");
2651         if (win_impl->GetWindow())
2652             cgctx =  (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2653
2654         if (cgctx != 0)
2655             return new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2656     }
2657     return NULL;
2658 }
2659
2660 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2661 {
2662 #ifdef __WXMAC__
2663     const wxDCImpl* impl = dc.GetImpl();
2664     wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2665     if (mem_impl)
2666     {
2667         int w, h;
2668         mem_impl->GetSize( &w, &h );
2669         return new wxMacCoreGraphicsContext( this,
2670             (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2671     }
2672 #endif
2673     return NULL;
2674 }
2675
2676 #if wxUSE_PRINTING_ARCHITECTURE
2677 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2678 {
2679 #ifdef __WXMAC__
2680     const wxDCImpl* impl = dc.GetImpl();
2681     wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2682     if (print_impl)
2683     {
2684         int w, h;
2685         print_impl->GetSize( &w, &h );
2686         return new wxMacCoreGraphicsContext( this,
2687             (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2688     }
2689 #endif
2690     return NULL;
2691 }
2692 #endif
2693
2694 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2695 {
2696     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2697 }
2698
2699 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2700 {
2701 #if wxOSX_USE_CARBON
2702     return new wxMacCoreGraphicsContext(this,(WindowRef)window);
2703 #else
2704     return NULL;
2705 #endif
2706 }
2707
2708 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
2709 {
2710     return new wxMacCoreGraphicsContext(this, window );
2711 }
2712
2713 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
2714 {
2715     return new wxMacCoreGraphicsContext(this);
2716 }
2717
2718 // Path
2719
2720 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
2721 {
2722     wxGraphicsPath m;
2723     m.SetRefData( new wxMacCoreGraphicsPathData(this));
2724     return m;
2725 }
2726
2727
2728 // Matrix
2729
2730 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
2731     wxDouble tx, wxDouble ty)
2732 {
2733     wxGraphicsMatrix m;
2734     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
2735     data->Set( a,b,c,d,tx,ty ) ;
2736     m.SetRefData(data);
2737     return m;
2738 }
2739
2740 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
2741 {
2742     if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
2743         return wxNullGraphicsPen;
2744     else
2745     {
2746         wxGraphicsPen p;
2747         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
2748         return p;
2749     }
2750 }
2751
2752 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
2753 {
2754     if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
2755         return wxNullGraphicsBrush;
2756     else
2757     {
2758         wxGraphicsBrush p;
2759         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
2760         return p;
2761     }
2762 }
2763
2764 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
2765 {
2766     if ( bmp.Ok() )
2767     {
2768         wxGraphicsBitmap p;
2769 #ifdef __WXMAC__
2770         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
2771 #endif
2772         return p;
2773     }
2774     else
2775         return wxNullGraphicsBitmap;
2776 }
2777
2778 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
2779 {
2780     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2781     CGImageRef img = refdata->GetBitmap();
2782     if ( img )
2783     {
2784         wxGraphicsBitmap p;
2785         CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h ));
2786         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg, refdata->IsMonochrome() ) );
2787         return p;
2788     }
2789     else
2790         return wxNullGraphicsBitmap;
2791 }
2792
2793 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2794 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2795     const wxColour&c1, const wxColour&c2)
2796 {
2797     wxGraphicsBrush p;
2798     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2799     d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
2800     p.SetRefData(d);
2801     return p;
2802 }
2803
2804 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2805 // with radius r and color cColor
2806 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2807     const wxColour &oColor, const wxColour &cColor)
2808 {
2809     wxGraphicsBrush p;
2810     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2811     d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
2812     p.SetRefData(d);
2813     return p;
2814 }
2815
2816 // sets the font
2817 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
2818 {
2819     if ( font.Ok() )
2820     {
2821         wxGraphicsFont p;
2822         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
2823         return p;
2824     }
2825     else
2826         return wxNullGraphicsFont;
2827 }
2828
2829 //
2830 // CoreGraphics Helper Methods
2831 //
2832
2833 // Data Providers and Consumers
2834
2835 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
2836 {
2837     CFMutableDataRef data = (CFMutableDataRef) info;
2838     if ( data )
2839     {
2840         CFDataAppendBytes( data, (const UInt8*) bytes, count );
2841     }
2842     return count;
2843 }
2844
2845 void wxMacReleaseCFDataProviderCallback(void *info,
2846                                       const void *WXUNUSED(data),
2847                                       size_t WXUNUSED(count))
2848 {
2849     if ( info )
2850         CFRelease( (CFDataRef) info );
2851 }
2852
2853 void wxMacReleaseCFDataConsumerCallback( void *info )
2854 {
2855     if ( info )
2856         CFRelease( (CFDataRef) info );
2857 }
2858
2859 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
2860 {
2861     if ( data == NULL )
2862         return NULL;
2863
2864     return CGDataProviderCreateWithCFData( data );
2865 }
2866
2867 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
2868 {
2869     if ( data == NULL )
2870         return NULL;
2871
2872     return CGDataConsumerCreateWithCFData( data );
2873 }
2874
2875 void
2876 wxMacReleaseMemoryBufferProviderCallback(void *info,
2877                                          const void * WXUNUSED_UNLESS_DEBUG(data),
2878                                          size_t WXUNUSED(size))
2879 {
2880     wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
2881
2882     wxASSERT( data == membuf->GetData() ) ;
2883
2884     delete membuf ;
2885 }
2886
2887 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
2888 {
2889     wxMemoryBuffer* b = new wxMemoryBuffer( buf );
2890     if ( b->GetDataLen() == 0 )
2891         return NULL;
2892
2893     return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
2894                                                  wxMacReleaseMemoryBufferProviderCallback );
2895 }