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 ( UMAGetSystemVersion() < 0x1060 )
1702     {
1703         CGCompositeOperation cop = kCGCompositeOperationSourceOver;
1704         CGBlendMode mode = kCGBlendModeNormal;
1705         switch( op )
1706         {
1707         case wxCOMPOSITION_CLEAR:
1708             cop = kCGCompositeOperationClear;
1709             break;
1710         case wxCOMPOSITION_SOURCE:
1711             cop = kCGCompositeOperationCopy;
1712             break;
1713         case wxCOMPOSITION_OVER:
1714             mode = kCGBlendModeNormal;
1715             break;
1716         case wxCOMPOSITION_IN:
1717             cop = kCGCompositeOperationSourceIn;
1718             break;
1719         case wxCOMPOSITION_OUT:
1720             cop = kCGCompositeOperationSourceOut;
1721             break;
1722         case wxCOMPOSITION_ATOP:
1723             cop = kCGCompositeOperationSourceAtop;
1724             break;
1725         case wxCOMPOSITION_DEST_OVER:
1726             cop = kCGCompositeOperationDestinationOver;
1727             break;
1728         case wxCOMPOSITION_DEST_IN:
1729             cop = kCGCompositeOperationDestinationIn;
1730             break;
1731         case wxCOMPOSITION_DEST_OUT:
1732             cop = kCGCompositeOperationDestinationOut;
1733             break;
1734         case wxCOMPOSITION_DEST_ATOP:
1735            cop = kCGCompositeOperationDestinationAtop;
1736             break;
1737         case wxCOMPOSITION_XOR:
1738             cop = kCGCompositeOperationXOR;
1739             break;
1740 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1741         case wxCOMPOSITION_ADD:
1742             mode = kCGBlendModePlusLighter ;
1743             break;
1744 #endif
1745         default:
1746             return false;
1747         }
1748         if ( cop != kCGCompositeOperationSourceOver )
1749             CGContextSetCompositeOperation(m_cgContext, cop);
1750         else
1751             CGContextSetBlendMode(m_cgContext, mode);
1752     }
1753 #endif
1754 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1755     else
1756     {
1757         CGBlendMode mode = kCGBlendModeNormal;
1758         switch( op )
1759         {
1760         case wxCOMPOSITION_CLEAR:
1761             mode = kCGBlendModeClear;
1762             break;
1763         case wxCOMPOSITION_SOURCE:
1764             mode = kCGBlendModeCopy;
1765             break;
1766         case wxCOMPOSITION_OVER:
1767             mode = kCGBlendModeNormal;
1768             break;
1769         case wxCOMPOSITION_IN:
1770             mode = kCGBlendModeSourceIn;
1771             break;
1772         case wxCOMPOSITION_OUT:
1773             mode = kCGBlendModeSourceOut;
1774             break;
1775         case wxCOMPOSITION_ATOP:
1776             mode = kCGBlendModeSourceAtop;
1777             break;
1778         case wxCOMPOSITION_DEST_OVER:
1779             mode = kCGBlendModeDestinationOver;
1780             break;
1781         case wxCOMPOSITION_DEST_IN:
1782             mode = kCGBlendModeDestinationIn;
1783             break;
1784         case wxCOMPOSITION_DEST_OUT:
1785             mode = kCGBlendModeDestinationOut;
1786             break;
1787         case wxCOMPOSITION_DEST_ATOP:
1788            mode = kCGBlendModeDestinationAtop;
1789             break;
1790         case wxCOMPOSITION_XOR:
1791             mode = kCGBlendModeXOR;
1792             break;
1793
1794         case wxCOMPOSITION_ADD:
1795             mode = kCGBlendModePlusLighter ;
1796             break;
1797         default:
1798             return false;
1799         }
1800         CGContextSetBlendMode(m_cgContext, mode);
1801     }
1802 #endif
1803     return true;
1804 }
1805
1806 void wxMacCoreGraphicsContext::BeginLayer(wxDouble opacity)
1807 {
1808     CGContextSaveGState(m_cgContext);
1809     CGContextSetAlpha(m_cgContext, opacity);
1810     CGContextBeginTransparencyLayer(m_cgContext, 0);
1811 }
1812
1813 void wxMacCoreGraphicsContext::EndLayer()
1814 {
1815     CGContextEndTransparencyLayer(m_cgContext);
1816     CGContextRestoreGState(m_cgContext);
1817 }
1818
1819 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1820 {
1821 #if wxOSX_USE_COCOA_OR_CARBON
1822     if( m_cgContext )
1823     {
1824         wxCFRef<HIShapeRef> shape = wxCFRefFromGet(region.GetWXHRGN());
1825         // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1826         if ( HIShapeIsEmpty(shape))
1827         {
1828             CGRect empty = CGRectMake( 0,0,0,0 );
1829             CGContextClipToRect( m_cgContext, empty );
1830         }
1831         else
1832         {
1833             HIShapeReplacePathInCGContext( shape, m_cgContext );
1834             CGContextClip( m_cgContext );
1835         }
1836     }
1837     else
1838     {
1839         // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1840         // to regions we try at least to have correct translations
1841         HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1842
1843         CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1844         HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1845         m_clipRgn.reset(mutableShape);
1846     }
1847 #else
1848     // allow usage as measuring context
1849     // wxASSERT_MSG( m_cgContext != NULL, "Needs a valid context for clipping" );
1850 #endif
1851 }
1852
1853 // clips drawings to the rect
1854 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1855 {
1856     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1857     if ( m_cgContext )
1858     {
1859         CGContextClipToRect( m_cgContext, r );
1860     }
1861     else
1862     {
1863 #if wxOSX_USE_COCOA_OR_CARBON
1864         // the clipping itself must be stored as device coordinates, otherwise
1865         // we cannot apply it back correctly
1866         r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
1867         m_clipRgn.reset(HIShapeCreateWithRect(&r));
1868 #else
1869     // allow usage as measuring context
1870     // wxFAIL_MSG( "Needs a valid context for clipping" );
1871 #endif
1872     }
1873 }
1874
1875     // resets the clipping to original extent
1876 void wxMacCoreGraphicsContext::ResetClip()
1877 {
1878     if ( m_cgContext )
1879     {
1880         // there is no way for clearing the clip, we can only revert to the stored
1881         // state, but then we have to make sure everything else is NOT restored
1882         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1883         CGContextRestoreGState( m_cgContext );
1884         CGContextSaveGState( m_cgContext );
1885         CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
1886         transformNew = CGAffineTransformInvert( transformNew ) ;
1887         CGContextConcatCTM( m_cgContext, transformNew);
1888         CGContextConcatCTM( m_cgContext, transform);
1889     }
1890     else
1891     {
1892 #if wxOSX_USE_COCOA_OR_CARBON
1893         m_clipRgn.reset();
1894 #else
1895     // allow usage as measuring context
1896     // wxFAIL_MSG( "Needs a valid context for clipping" );
1897 #endif
1898     }
1899 }
1900
1901 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1902 {
1903     if ( m_pen.IsNull() )
1904         return ;
1905
1906     if (EnsureIsValid()==false)
1907         return;
1908
1909     if (m_composition == wxCOMPOSITION_DEST)
1910         return;
1911
1912     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1913
1914     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1915     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1916     CGContextStrokePath( m_cgContext );
1917 }
1918
1919 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1920 {
1921     if (EnsureIsValid()==false)
1922         return;
1923
1924     if (m_composition == wxCOMPOSITION_DEST)
1925         return;
1926
1927     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1928     {
1929         // when using shading, we cannot draw pen and brush at the same time
1930         // revert to the base implementation of first filling and then stroking
1931         wxGraphicsContext::DrawPath( path, fillStyle );
1932         return;
1933     }
1934
1935     CGPathDrawingMode mode = kCGPathFill ;
1936     if ( m_brush.IsNull() )
1937     {
1938         if ( m_pen.IsNull() )
1939             return;
1940         else
1941             mode = kCGPathStroke;
1942     }
1943     else
1944     {
1945         if ( m_pen.IsNull() )
1946         {
1947             if ( fillStyle == wxODDEVEN_RULE )
1948                 mode = kCGPathEOFill;
1949             else
1950                 mode = kCGPathFill;
1951         }
1952         else
1953         {
1954             if ( fillStyle == wxODDEVEN_RULE )
1955                 mode = kCGPathEOFillStroke;
1956             else
1957                 mode = kCGPathFillStroke;
1958         }
1959     }
1960
1961     if ( !m_brush.IsNull() )
1962         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1963     if ( !m_pen.IsNull() )
1964         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1965
1966     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1967
1968     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1969     CGContextDrawPath( m_cgContext , mode );
1970 }
1971
1972 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1973 {
1974     if ( m_brush.IsNull() )
1975         return;
1976
1977     if (EnsureIsValid()==false)
1978         return;
1979
1980     if (m_composition == wxCOMPOSITION_DEST)
1981         return;
1982
1983     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1984     {
1985         CGContextSaveGState( m_cgContext );
1986         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1987         CGContextClip( m_cgContext );
1988         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1989         CGContextRestoreGState( m_cgContext);
1990     }
1991     else
1992     {
1993         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1994         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1995         if ( fillStyle == wxODDEVEN_RULE )
1996             CGContextEOFillPath( m_cgContext );
1997         else
1998             CGContextFillPath( m_cgContext );
1999     }
2000 }
2001
2002 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
2003 {
2004     // we allow either setting or clearing but not replacing
2005     wxASSERT( m_cgContext == NULL || cg == NULL );
2006
2007     if ( m_cgContext )
2008     {
2009         CGContextRestoreGState( m_cgContext );
2010         CGContextRestoreGState( m_cgContext );
2011         if ( m_contextSynthesized )
2012         {
2013             // TODO: in case of performance problems, try issuing this not too
2014             // frequently (half of refresh rate)
2015             CGContextFlush(m_cgContext);
2016 #if wxOSX_USE_CARBON
2017             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
2018 #endif
2019 #if wxOSX_USE_COCOA_OR_IPHONE
2020             wxOSXUnlockFocus(m_view);
2021 #endif
2022         }
2023         else
2024             CGContextRelease(m_cgContext);
2025     }
2026
2027     m_cgContext = cg;
2028
2029     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
2030     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
2031     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
2032     // for this one operation.
2033
2034     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
2035     // can be removed.
2036     if (m_cgContext)
2037     {
2038         CGContextRetain(m_cgContext);
2039         CGContextSaveGState( m_cgContext );
2040         CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
2041         CGContextSaveGState( m_cgContext );
2042         m_contextSynthesized = false;
2043     }
2044 }
2045
2046 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
2047 {
2048     if ( m_cgContext )
2049         CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
2050     else
2051         m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
2052 }
2053
2054 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
2055 {
2056     if ( m_cgContext )
2057         CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
2058     else
2059         m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
2060 }
2061
2062 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
2063 {
2064     if ( m_cgContext )
2065         CGContextRotateCTM( m_cgContext , (CGFloat) angle );
2066     else
2067         m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
2068 }
2069
2070 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2071 {
2072     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
2073     DrawBitmap(bitmap, x, y, w, h);
2074 }
2075
2076 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2077 {
2078     if (EnsureIsValid()==false)
2079         return;
2080
2081     if (m_composition == wxCOMPOSITION_DEST)
2082         return;
2083
2084 #ifdef __WXMAC__
2085     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2086     CGImageRef image = refdata->GetBitmap();
2087     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2088     if ( refdata->IsMonochrome() == 1 )
2089     {
2090         // is is a mask, the '1' in the mask tell where to draw the current brush
2091         if (  !m_brush.IsNull() )
2092         {
2093             if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2094             {
2095                 // TODO clip to mask
2096             /*
2097                 CGContextSaveGState( m_cgContext );
2098                 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2099                 CGContextClip( m_cgContext );
2100                 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2101                 CGContextRestoreGState( m_cgContext);
2102             */
2103             }
2104             else
2105             {
2106                 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2107                 wxMacDrawCGImage( m_cgContext , &r , image );
2108             }
2109         }
2110     }
2111     else
2112     {
2113         wxMacDrawCGImage( m_cgContext , &r , image );
2114     }
2115 #endif
2116 }
2117
2118 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2119 {
2120     if (EnsureIsValid()==false)
2121         return;
2122
2123     if (m_composition == wxCOMPOSITION_DEST)
2124         return;
2125
2126     CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
2127     CGContextSaveGState( m_cgContext );
2128     CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
2129     CGContextScaleCTM( m_cgContext, 1, -1 );
2130 #if wxOSX_USE_COCOA_OR_CARBON
2131     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
2132         NULL , kPlotIconRefNormalFlags , icon.GetHICON() );
2133 #endif
2134     CGContextRestoreGState( m_cgContext );
2135 }
2136
2137 void wxMacCoreGraphicsContext::PushState()
2138 {
2139     if (EnsureIsValid()==false)
2140         return;
2141
2142     CGContextSaveGState( m_cgContext );
2143 }
2144
2145 void wxMacCoreGraphicsContext::PopState()
2146 {
2147     if (EnsureIsValid()==false)
2148         return;
2149
2150     CGContextRestoreGState( m_cgContext );
2151 }
2152
2153 void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDouble y )
2154 {
2155     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2156
2157     if (EnsureIsValid()==false)
2158         return;
2159
2160     if (m_composition == wxCOMPOSITION_DEST)
2161         return;
2162
2163 #if wxOSX_USE_CORE_TEXT
2164     if ( UMAGetSystemVersion() >= 0x1050 )
2165     {
2166         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2167         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2168         CTFontRef font = fref->GetCTFont();
2169         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2170         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
2171         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
2172          CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
2173         CFTypeRef values[] = { font, col, underlined };
2174         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2175                                                         WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2176         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2177         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2178
2179         y += CTFontGetAscent(font);
2180
2181         CGContextSaveGState(m_cgContext);
2182         CGContextTranslateCTM(m_cgContext, x, y);
2183         CGContextScaleCTM(m_cgContext, 1, -1);
2184         CGContextSetTextPosition(m_cgContext, 0, 0);
2185         CTLineDraw( line, m_cgContext );
2186         CGContextRestoreGState(m_cgContext);
2187         CFRelease( col );
2188         return;
2189     }
2190 #endif
2191 #if wxOSX_USE_ATSU_TEXT
2192     {
2193         DrawText(str, x, y, 0.0);
2194         return;
2195     }
2196 #endif
2197 #if wxOSX_USE_IPHONE
2198     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2199
2200     CGContextSaveGState(m_cgContext);
2201
2202     CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2203     CGContextSetTextDrawingMode (m_cgContext, kCGTextFill);
2204     CGContextSetFillColorWithColor( m_cgContext, col );
2205
2206     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2207     DrawTextInContext( m_cgContext, CGPointMake( x, y ), fref->GetUIFont() , text.AsNSString() );
2208
2209     CGContextRestoreGState(m_cgContext);
2210     CFRelease( col );
2211 #endif
2212 }
2213
2214 void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
2215                                                  wxDouble x, wxDouble y,
2216                                                  wxDouble angle)
2217 {
2218     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2219
2220     if (EnsureIsValid()==false)
2221         return;
2222
2223     if (m_composition == wxCOMPOSITION_DEST)
2224         return;
2225
2226 #if wxOSX_USE_CORE_TEXT
2227     if ( UMAGetSystemVersion() >= 0x1050 )
2228     {
2229         // default implementation takes care of rotation and calls non rotated DrawText afterwards
2230         wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2231         return;
2232     }
2233 #endif
2234 #if wxOSX_USE_ATSU_TEXT
2235     {
2236         OSStatus status = noErr;
2237         ATSUTextLayout atsuLayout;
2238         wxMacUniCharBuffer unibuf( str );
2239         UniCharCount chars = unibuf.GetChars();
2240
2241         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2242         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2243                                                    &chars , &style , &atsuLayout );
2244
2245         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
2246
2247         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2248         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2249
2250         int iAngle = int( angle * RAD2DEG );
2251         if ( abs(iAngle) > 0 )
2252         {
2253             Fixed atsuAngle = IntToFixed( iAngle );
2254             ATSUAttributeTag atsuTags[] =
2255             {
2256                 kATSULineRotationTag ,
2257             };
2258             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2259             {
2260                 sizeof( Fixed ) ,
2261             };
2262             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2263             {
2264                 &atsuAngle ,
2265             };
2266             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
2267                                              atsuTags, atsuSizes, atsuValues );
2268         }
2269
2270         {
2271             ATSUAttributeTag atsuTags[] =
2272             {
2273                 kATSUCGContextTag ,
2274             };
2275             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2276             {
2277                 sizeof( CGContextRef ) ,
2278             };
2279             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2280             {
2281                 &m_cgContext ,
2282             };
2283             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
2284                                              atsuTags, atsuSizes, atsuValues );
2285         }
2286
2287         ATSUTextMeasurement textBefore, textAfter;
2288         ATSUTextMeasurement ascent, descent;
2289
2290         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2291                                             &textBefore , &textAfter, &ascent , &descent );
2292
2293         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2294
2295         Rect rect;
2296         x += (int)(sin(angle) * FixedToInt(ascent));
2297         y += (int)(cos(angle) * FixedToInt(ascent));
2298
2299         status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2300                                         IntToFixed(x) , IntToFixed(y) , &rect );
2301         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2302
2303         CGContextSaveGState(m_cgContext);
2304         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2305         CGContextScaleCTM(m_cgContext, 1, -1);
2306         status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2307                                 IntToFixed(0) , IntToFixed(0) );
2308
2309         wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2310
2311         CGContextRestoreGState(m_cgContext);
2312
2313         ::ATSUDisposeTextLayout(atsuLayout);
2314
2315         return;
2316     }
2317 #endif
2318 #if wxOSX_USE_IPHONE
2319     // default implementation takes care of rotation and calls non rotated DrawText afterwards
2320     wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2321 #endif
2322 }
2323
2324 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2325                             wxDouble *descent, wxDouble *externalLeading ) const
2326 {
2327     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::GetTextExtent - no valid font set") );
2328
2329     if ( width )
2330         *width = 0;
2331     if ( height )
2332         *height = 0;
2333     if ( descent )
2334         *descent = 0;
2335     if ( externalLeading )
2336         *externalLeading = 0;
2337
2338     if (str.empty())
2339         return;
2340
2341 #if wxOSX_USE_CORE_TEXT
2342     if ( UMAGetSystemVersion() >= 0x1050 )
2343     {
2344         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2345         CTFontRef font = fref->GetCTFont();
2346
2347         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2348         CFStringRef keys[] = { kCTFontAttributeName  };
2349         CFTypeRef values[] = { font };
2350         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2351                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2352         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2353         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2354
2355         CGFloat w, a, d, l;
2356
2357         w = CTLineGetTypographicBounds(line, &a, &d, &l) ;
2358
2359         if ( height )
2360             *height = a+d+l;
2361         if ( descent )
2362             *descent = d;
2363         if ( externalLeading )
2364             *externalLeading = l;
2365         if ( width )
2366             *width = w;
2367         return;
2368     }
2369 #endif
2370 #if wxOSX_USE_ATSU_TEXT
2371     {
2372         OSStatus status = noErr;
2373
2374         ATSUTextLayout atsuLayout;
2375         wxMacUniCharBuffer unibuf( str );
2376         UniCharCount chars = unibuf.GetChars();
2377
2378         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2379         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2380                                                    &chars , &style , &atsuLayout );
2381
2382         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2383
2384         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2385         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2386
2387         ATSUTextMeasurement textBefore, textAfter;
2388         ATSUTextMeasurement textAscent, textDescent;
2389
2390         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2391                                             &textBefore , &textAfter, &textAscent , &textDescent );
2392
2393         if ( height )
2394             *height = FixedToInt(textAscent + textDescent);
2395         if ( descent )
2396             *descent = FixedToInt(textDescent);
2397         if ( externalLeading )
2398             *externalLeading = 0;
2399         if ( width )
2400             *width = FixedToInt(textAfter - textBefore);
2401
2402         ::ATSUDisposeTextLayout(atsuLayout);
2403
2404         return;
2405     }
2406 #endif
2407 #if wxOSX_USE_IPHONE
2408     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2409
2410     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2411     CGSize sz = MeasureTextInContext( fref->GetUIFont() , text.AsNSString() );
2412
2413     if ( height )
2414         *height = sz.height;
2415         /*
2416     if ( descent )
2417         *descent = FixedToInt(textDescent);
2418     if ( externalLeading )
2419         *externalLeading = 0;
2420         */
2421     if ( width )
2422         *width = sz.width;
2423 #endif
2424 }
2425
2426 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2427 {
2428     widths.Empty();
2429     widths.Add(0, text.length());
2430
2431     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2432
2433     if (text.empty())
2434         return;
2435
2436 #if wxOSX_USE_CORE_TEXT
2437     {
2438         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2439         CTFontRef font = fref->GetCTFont();
2440
2441         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2442         CFStringRef keys[] = { kCTFontAttributeName  };
2443         CFTypeRef values[] = { font };
2444         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2445                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2446         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2447         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2448
2449         int chars = text.length();
2450         for ( int pos = 0; pos < (int)chars; pos ++ )
2451         {
2452             widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5;
2453         }
2454
2455         return;
2456     }
2457 #endif
2458 #if wxOSX_USE_ATSU_TEXT
2459     {
2460         OSStatus status = noErr;
2461         ATSUTextLayout atsuLayout;
2462         wxMacUniCharBuffer unibuf( text );
2463         UniCharCount chars = unibuf.GetChars();
2464
2465         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2466         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2467                                           &chars , &style , &atsuLayout );
2468
2469         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2470
2471         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2472         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2473
2474 // new implementation from JS, keep old one just in case
2475 #if 0
2476         for ( int pos = 0; pos < (int)chars; pos ++ )
2477         {
2478             unsigned long actualNumberOfBounds = 0;
2479             ATSTrapezoid glyphBounds;
2480
2481             // We get a single bound, since the text should only require one. If it requires more, there is an issue
2482             OSStatus result;
2483             result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2484                                         kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2485             if (result != noErr || actualNumberOfBounds != 1 )
2486                 return;
2487
2488             widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2489             //unsigned char uch = s[i];
2490         }
2491 #else
2492         ATSLayoutRecord *layoutRecords = NULL;
2493         ItemCount glyphCount = 0;
2494
2495         // Get the glyph extents
2496         OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2497                                                                        0,
2498                                                                        kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2499                                                                        (void **)
2500                                                                        &layoutRecords,
2501                                                                        &glyphCount);
2502         wxASSERT(glyphCount == (text.length()+1));
2503
2504         if ( err == noErr && glyphCount == (text.length()+1))
2505         {
2506             for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2507             {
2508                 widths[pos-1] = FixedToInt( layoutRecords[pos].realPos );
2509             }
2510         }
2511
2512         ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2513                                               kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2514                                               (void **) &layoutRecords);
2515 #endif
2516         ::ATSUDisposeTextLayout(atsuLayout);
2517     }
2518 #endif
2519 #if wxOSX_USE_IPHONE
2520     // TODO core graphics text implementation here
2521 #endif
2522 }
2523
2524 void * wxMacCoreGraphicsContext::GetNativeContext()
2525 {
2526     return m_cgContext;
2527 }
2528
2529 // concatenates this transform with the current transform of this context
2530 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2531 {
2532     if ( m_cgContext )
2533         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2534     else
2535         m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
2536 }
2537
2538 // sets the transform of this context
2539 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2540 {
2541     if ( m_cgContext )
2542     {
2543         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2544         transform = CGAffineTransformInvert( transform ) ;
2545         CGContextConcatCTM( m_cgContext, transform);
2546         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2547     }
2548     else
2549     {
2550         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2551     }
2552 }
2553
2554 // gets the matrix of this context
2555 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2556 {
2557     wxGraphicsMatrix m = CreateMatrix();
2558     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2559         CGContextGetCTM( m_cgContext ));
2560     return m;
2561 }
2562
2563 //
2564 // Renderer
2565 //
2566
2567 //-----------------------------------------------------------------------------
2568 // wxMacCoreGraphicsRenderer declaration
2569 //-----------------------------------------------------------------------------
2570
2571 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2572 {
2573 public :
2574     wxMacCoreGraphicsRenderer() {}
2575
2576     virtual ~wxMacCoreGraphicsRenderer() {}
2577
2578     // Context
2579
2580     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2581     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2582 #if wxUSE_PRINTING_ARCHITECTURE
2583     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2584 #endif
2585
2586     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2587
2588     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2589
2590     virtual wxGraphicsContext * CreateContext( wxWindow* window );
2591
2592     virtual wxGraphicsContext * CreateMeasuringContext();
2593
2594     // Path
2595
2596     virtual wxGraphicsPath CreatePath();
2597
2598     // Matrix
2599
2600     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2601         wxDouble tx=0.0, wxDouble ty=0.0);
2602
2603
2604     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2605
2606     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2607
2608     // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2609     virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2610         const wxColour&c1, const wxColour&c2) ;
2611
2612     // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2613     // with radius r and color cColor
2614     virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2615         const wxColour &oColor, const wxColour &cColor) ;
2616
2617    // sets the font
2618     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2619
2620     // create a native bitmap representation
2621     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2622
2623     // create a native bitmap representation
2624     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
2625 private :
2626     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2627 } ;
2628
2629 //-----------------------------------------------------------------------------
2630 // wxMacCoreGraphicsRenderer implementation
2631 //-----------------------------------------------------------------------------
2632
2633 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2634
2635 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2636
2637 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2638 {
2639     return &gs_MacCoreGraphicsRenderer;
2640 }
2641
2642 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2643 {
2644     const wxDCImpl* impl = dc.GetImpl();
2645     wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2646     if (win_impl)
2647     {
2648         int w, h;
2649         win_impl->GetSize( &w, &h );
2650         CGContextRef cgctx = 0;
2651
2652         wxASSERT_MSG(win_impl->GetWindow(), "Invalid wxWindow in wxMacCoreGraphicsRenderer::CreateContext");
2653         if (win_impl->GetWindow())
2654             cgctx =  (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2655
2656         if (cgctx != 0)
2657             return new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2658     }
2659     return NULL;
2660 }
2661
2662 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2663 {
2664 #ifdef __WXMAC__
2665     const wxDCImpl* impl = dc.GetImpl();
2666     wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2667     if (mem_impl)
2668     {
2669         int w, h;
2670         mem_impl->GetSize( &w, &h );
2671         return new wxMacCoreGraphicsContext( this,
2672             (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2673     }
2674 #endif
2675     return NULL;
2676 }
2677
2678 #if wxUSE_PRINTING_ARCHITECTURE
2679 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2680 {
2681 #ifdef __WXMAC__
2682     const wxDCImpl* impl = dc.GetImpl();
2683     wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2684     if (print_impl)
2685     {
2686         int w, h;
2687         print_impl->GetSize( &w, &h );
2688         return new wxMacCoreGraphicsContext( this,
2689             (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2690     }
2691 #endif
2692     return NULL;
2693 }
2694 #endif
2695
2696 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2697 {
2698     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2699 }
2700
2701 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2702 {
2703 #if wxOSX_USE_CARBON
2704     return new wxMacCoreGraphicsContext(this,(WindowRef)window);
2705 #else
2706     return NULL;
2707 #endif
2708 }
2709
2710 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
2711 {
2712     return new wxMacCoreGraphicsContext(this, window );
2713 }
2714
2715 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
2716 {
2717     return new wxMacCoreGraphicsContext(this);
2718 }
2719
2720 // Path
2721
2722 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
2723 {
2724     wxGraphicsPath m;
2725     m.SetRefData( new wxMacCoreGraphicsPathData(this));
2726     return m;
2727 }
2728
2729
2730 // Matrix
2731
2732 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
2733     wxDouble tx, wxDouble ty)
2734 {
2735     wxGraphicsMatrix m;
2736     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
2737     data->Set( a,b,c,d,tx,ty ) ;
2738     m.SetRefData(data);
2739     return m;
2740 }
2741
2742 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
2743 {
2744     if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
2745         return wxNullGraphicsPen;
2746     else
2747     {
2748         wxGraphicsPen p;
2749         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
2750         return p;
2751     }
2752 }
2753
2754 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
2755 {
2756     if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
2757         return wxNullGraphicsBrush;
2758     else
2759     {
2760         wxGraphicsBrush p;
2761         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
2762         return p;
2763     }
2764 }
2765
2766 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
2767 {
2768     if ( bmp.Ok() )
2769     {
2770         wxGraphicsBitmap p;
2771 #ifdef __WXMAC__
2772         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
2773 #endif
2774         return p;
2775     }
2776     else
2777         return wxNullGraphicsBitmap;
2778 }
2779
2780 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
2781 {
2782     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2783     CGImageRef img = refdata->GetBitmap();
2784     if ( img )
2785     {
2786         wxGraphicsBitmap p;
2787         CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h ));
2788         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg, refdata->IsMonochrome() ) );
2789         return p;
2790     }
2791     else
2792         return wxNullGraphicsBitmap;
2793 }
2794
2795 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2796 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2797     const wxColour&c1, const wxColour&c2)
2798 {
2799     wxGraphicsBrush p;
2800     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2801     d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
2802     p.SetRefData(d);
2803     return p;
2804 }
2805
2806 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2807 // with radius r and color cColor
2808 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2809     const wxColour &oColor, const wxColour &cColor)
2810 {
2811     wxGraphicsBrush p;
2812     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2813     d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
2814     p.SetRefData(d);
2815     return p;
2816 }
2817
2818 // sets the font
2819 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
2820 {
2821     if ( font.Ok() )
2822     {
2823         wxGraphicsFont p;
2824         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
2825         return p;
2826     }
2827     else
2828         return wxNullGraphicsFont;
2829 }
2830
2831 //
2832 // CoreGraphics Helper Methods
2833 //
2834
2835 // Data Providers and Consumers
2836
2837 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
2838 {
2839     CFMutableDataRef data = (CFMutableDataRef) info;
2840     if ( data )
2841     {
2842         CFDataAppendBytes( data, (const UInt8*) bytes, count );
2843     }
2844     return count;
2845 }
2846
2847 void wxMacReleaseCFDataProviderCallback(void *info,
2848                                       const void *WXUNUSED(data),
2849                                       size_t WXUNUSED(count))
2850 {
2851     if ( info )
2852         CFRelease( (CFDataRef) info );
2853 }
2854
2855 void wxMacReleaseCFDataConsumerCallback( void *info )
2856 {
2857     if ( info )
2858         CFRelease( (CFDataRef) info );
2859 }
2860
2861 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
2862 {
2863     if ( data == NULL )
2864         return NULL;
2865
2866     return CGDataProviderCreateWithCFData( data );
2867 }
2868
2869 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
2870 {
2871     if ( data == NULL )
2872         return NULL;
2873
2874     return CGDataConsumerCreateWithCFData( data );
2875 }
2876
2877 void
2878 wxMacReleaseMemoryBufferProviderCallback(void *info,
2879                                          const void * WXUNUSED_UNLESS_DEBUG(data),
2880                                          size_t WXUNUSED(size))
2881 {
2882     wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
2883
2884     wxASSERT( data == membuf->GetData() ) ;
2885
2886     delete membuf ;
2887 }
2888
2889 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
2890 {
2891     wxMemoryBuffer* b = new wxMemoryBuffer( buf );
2892     if ( b->GetDataLen() == 0 )
2893         return NULL;
2894
2895     return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
2896                                                  wxMacReleaseMemoryBufferProviderCallback );
2897 }