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 wxOSXGetContextFromCurrentContext() ;
  76 #if wxOSX_USE_COCOA
  77 extern bool wxOSXLockFocus( WXWidget view) ;
  78 extern void wxOSXUnlockFocus( WXWidget view) ;
  79 #endif
  80 #endif
  81
  82 #if 1 // MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
  83
  84 // TODO test whether this private API also works under 10.3
  85
  86 // copying values from NSCompositingModes (see also webkit and cairo sources)
  87
  88 typedef enum CGCompositeOperation {
  89    kCGCompositeOperationClear           = 0,
  90    kCGCompositeOperationCopy            = 1,
  91    kCGCompositeOperationSourceOver      = 2,
  92    kCGCompositeOperationSourceIn        = 3,
  93    kCGCompositeOperationSourceOut       = 4,
  94    kCGCompositeOperationSourceAtop      = 5,
  95    kCGCompositeOperationDestinationOver = 6,
  96    kCGCompositeOperationDestinationIn   = 7,
  97    kCGCompositeOperationDestinationOut  = 8,
  98    kCGCompositeOperationDestinationAtop = 9,
  99    kCGCompositeOperationXOR             = 10,
 100    kCGCompositeOperationPlusDarker      = 11,
 101 // NS only, unsupported by CG : Highlight
 102    kCGCompositeOperationPlusLighter     = 12
 103 } CGCompositeOperation ;
 104
 105 extern "C"
 106 {
 107    CG_EXTERN void CGContextSetCompositeOperation (CGContextRef context, int operation);
 108 } ;
 109
 110 #endif
 111
 112 //-----------------------------------------------------------------------------
 113 // constants
 114 //-----------------------------------------------------------------------------
 115
 116 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
 117 #ifndef M_PI
 118 const double M_PI = 3.14159265358979;
 119 #endif
 120 #endif
 121
 122 static const double RAD2DEG = 180.0 / M_PI;
 123
 124 //
 125 // Pen, Brushes and Fonts
 126 //
 127
 128 #pragma mark -
 129 #pragma mark wxMacCoreGraphicsPattern, ImagePattern, HatchPattern classes
 130
 131 OSStatus wxMacDrawCGImage(
 132                   CGContextRef    inContext,
 133                   const CGRect *  inBounds,
 134                   CGImageRef      inImage)
 135 {
 136 #if wxOSX_USE_CARBON
 137     return HIViewDrawCGImage( inContext, inBounds, inImage );
 138 #else
 139     CGContextSaveGState(inContext);
 140     CGContextTranslateCTM(inContext, inBounds->origin.x, inBounds->origin.y + inBounds->size.height);
 141     CGRect r = *inBounds;
 142     r.origin.x = r.origin.y = 0;
 143     CGContextScaleCTM(inContext, 1, -1);
 144     CGContextDrawImage(inContext, r, inImage );
 145     CGContextRestoreGState(inContext);
 146     return noErr;
 147 #endif
 148 }
 149
 150 CGColorRef wxMacCreateCGColor( const wxColour& col )
 151 {
 152     CGColorRef retval = 0;
 153 #ifdef __WXMAC__
 154     retval = col.CreateCGColor();
 155 #else
 156 // TODO add conversion NSColor - CGColorRef (obj-c)
 157 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
 158     if ( CGColorCreateGenericRGB )
 159         retval = CGColorCreateGenericRGB( col.Red() / 255.0 , col.Green() / 255.0, col.Blue() / 255.0, col.Alpha() / 255.0 );
 160     else
 161 #endif
 162     {
 163         CGFloat components[4] = { col.Red() / 255.0, col.Green() / 255.0, col.Blue()  / 255.0, col.Alpha() / 255.0 } ;
 164         retval = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
 165     }
 166
 167 #endif
 168     return retval;
 169 }
 170
 171 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 && wxOSX_USE_CORE_TEXT
 172
 173 CTFontRef wxMacCreateCTFont( const wxFont& font )
 174 {
 175 #ifdef __WXMAC__
 176     return wxCFRetain((CTFontRef) font.OSXGetCTFont());
 177 #else
 178     return CTFontCreateWithName( wxCFStringRef( font.GetFaceName(), wxLocale::GetSystemEncoding() ) , font.GetPointSize() , NULL );
 179 #endif
 180 }
 181
 182 #endif
 183
 184 // CGPattern wrapper class: always allocate on heap, never call destructor
 185
 186 class wxMacCoreGraphicsPattern
 187 {
 188 public :
 189     wxMacCoreGraphicsPattern() {}
 190
 191     // is guaranteed to be called only with a non-Null CGContextRef
 192     virtual void Render( CGContextRef ctxRef ) = 0;
 193
 194     operator CGPatternRef() const { return m_patternRef; }
 195
 196 protected :
 197     virtual ~wxMacCoreGraphicsPattern()
 198     {
 199         // as this is called only when the m_patternRef is been released;
 200         // don't release it again
 201     }
 202
 203     static void _Render( void *info, CGContextRef ctxRef )
 204     {
 205         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 206         if ( self && ctxRef )
 207             self->Render( ctxRef );
 208     }
 209
 210     static void _Dispose( void *info )
 211     {
 212         wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
 213         delete self;
 214     }
 215
 216     CGPatternRef m_patternRef;
 217
 218     static const CGPatternCallbacks ms_Callbacks;
 219 };
 220
 221 const CGPatternCallbacks wxMacCoreGraphicsPattern::ms_Callbacks = { 0, &wxMacCoreGraphicsPattern::_Render, &wxMacCoreGraphicsPattern::_Dispose };
 222
 223 class ImagePattern : public wxMacCoreGraphicsPattern
 224 {
 225 public :
 226     ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
 227     {
 228         wxASSERT( bmp && bmp->Ok() );
 229 #ifdef __WXMAC__
 230         Init( (CGImageRef) bmp->CreateCGImage() , transform );
 231 #endif
 232     }
 233
 234     // ImagePattern takes ownership of CGImageRef passed in
 235     ImagePattern( CGImageRef image , const CGAffineTransform& transform )
 236     {
 237         if ( image )
 238             CFRetain( image );
 239
 240         Init( image , transform );
 241     }
 242
 243     virtual void Render( CGContextRef ctxRef )
 244     {
 245         if (m_image != NULL)
 246             wxMacDrawCGImage( ctxRef, &m_imageBounds, m_image );
 247     }
 248
 249 protected :
 250     void Init( CGImageRef image, const CGAffineTransform& transform )
 251     {
 252         m_image = image;
 253         if ( m_image )
 254         {
 255             m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) );
 256             m_patternRef = CGPatternCreate(
 257                 this , m_imageBounds, transform ,
 258                 m_imageBounds.size.width, m_imageBounds.size.height,
 259                 kCGPatternTilingNoDistortion, true , &wxMacCoreGraphicsPattern::ms_Callbacks );
 260         }
 261     }
 262
 263     virtual ~ImagePattern()
 264     {
 265         if ( m_image )
 266             CGImageRelease( m_image );
 267     }
 268
 269     CGImageRef m_image;
 270     CGRect m_imageBounds;
 271 };
 272
 273 class HatchPattern : public wxMacCoreGraphicsPattern
 274 {
 275 public :
 276     HatchPattern( int hatchstyle, const CGAffineTransform& transform )
 277     {
 278         m_hatch = hatchstyle;
 279         m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat) 8.0 , (CGFloat) 8.0 );
 280         m_patternRef = CGPatternCreate(
 281             this , m_imageBounds, transform ,
 282             m_imageBounds.size.width, m_imageBounds.size.height,
 283             kCGPatternTilingNoDistortion, false , &wxMacCoreGraphicsPattern::ms_Callbacks );
 284     }
 285
 286     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 287     {
 288         CGContextStrokeLineSegments( ctxRef , pts , count );
 289     }
 290
 291     virtual void Render( CGContextRef ctxRef )
 292     {
 293         switch ( m_hatch )
 294         {
 295             case wxBDIAGONAL_HATCH :
 296                 {
 297                     CGPoint pts[] =
 298                     {
 299                     { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 300                     };
 301                     StrokeLineSegments( ctxRef , pts , 2 );
 302                 }
 303                 break;
 304
 305             case wxCROSSDIAG_HATCH :
 306                 {
 307                     CGPoint pts[] =
 308                     {
 309                         { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 } ,
 310                         { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
 311                     };
 312                     StrokeLineSegments( ctxRef , pts , 4 );
 313                 }
 314                 break;
 315
 316             case wxFDIAGONAL_HATCH :
 317                 {
 318                     CGPoint pts[] =
 319                     {
 320                     { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 }
 321                     };
 322                     StrokeLineSegments( ctxRef , pts , 2 );
 323                 }
 324                 break;
 325
 326             case wxCROSS_HATCH :
 327                 {
 328                     CGPoint pts[] =
 329                     {
 330                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 331                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 332                     };
 333                     StrokeLineSegments( ctxRef , pts , 4 );
 334                 }
 335                 break;
 336
 337             case wxHORIZONTAL_HATCH :
 338                 {
 339                     CGPoint pts[] =
 340                     {
 341                     { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
 342                     };
 343                     StrokeLineSegments( ctxRef , pts , 2 );
 344                 }
 345                 break;
 346
 347             case wxVERTICAL_HATCH :
 348                 {
 349                     CGPoint pts[] =
 350                     {
 351                     { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
 352                     };
 353                     StrokeLineSegments( ctxRef , pts , 2 );
 354                 }
 355                 break;
 356
 357             default:
 358                 break;
 359         }
 360     }
 361
 362 protected :
 363     virtual ~HatchPattern() {}
 364
 365     CGRect      m_imageBounds;
 366     int         m_hatch;
 367 };
 368
 369 class wxMacCoreGraphicsPenData : public wxGraphicsObjectRefData
 370 {
 371 public:
 372     wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
 373     ~wxMacCoreGraphicsPenData();
 374
 375     void Init();
 376     virtual void Apply( wxGraphicsContext* context );
 377     virtual wxDouble GetWidth() { return m_width; }
 378
 379 protected :
 380     CGLineCap m_cap;
 381     wxCFRef<CGColorRef> m_color;
 382     wxCFRef<CGColorSpaceRef> m_colorSpace;
 383
 384     CGLineJoin m_join;
 385     CGFloat m_width;
 386
 387     int m_count;
 388     const CGFloat *m_lengths;
 389     CGFloat *m_userLengths;
 390
 391
 392     bool m_isPattern;
 393     wxCFRef<CGPatternRef> m_pattern;
 394     CGFloat* m_patternColorComponents;
 395 };
 396
 397 wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) :
 398     wxGraphicsObjectRefData( renderer )
 399 {
 400     Init();
 401
 402     m_color.reset( wxMacCreateCGColor( pen.GetColour() ) ) ;
 403
 404     // TODO: * m_dc->m_scaleX
 405     m_width = pen.GetWidth();
 406     if (m_width <= 0.0)
 407         m_width = (CGFloat) 0.1;
 408
 409     switch ( pen.GetCap() )
 410     {
 411         case wxCAP_ROUND :
 412             m_cap = kCGLineCapRound;
 413             break;
 414
 415         case wxCAP_PROJECTING :
 416             m_cap = kCGLineCapSquare;
 417             break;
 418
 419         case wxCAP_BUTT :
 420             m_cap = kCGLineCapButt;
 421             break;
 422
 423         default :
 424             m_cap = kCGLineCapButt;
 425             break;
 426     }
 427
 428     switch ( pen.GetJoin() )
 429     {
 430         case wxJOIN_BEVEL :
 431             m_join = kCGLineJoinBevel;
 432             break;
 433
 434         case wxJOIN_MITER :
 435             m_join = kCGLineJoinMiter;
 436             break;
 437
 438         case wxJOIN_ROUND :
 439             m_join = kCGLineJoinRound;
 440             break;
 441
 442         default :
 443             m_join = kCGLineJoinMiter;
 444             break;
 445     }
 446
 447     const CGFloat dashUnit = m_width < 1.0 ? (CGFloat) 1.0 : m_width;
 448
 449     const CGFloat dotted[] = { (CGFloat) dashUnit , (CGFloat) (dashUnit + 2.0) };
 450     static const CGFloat short_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 };
 451     static const CGFloat dashed[] = { (CGFloat) 19.0 , (CGFloat) 9.0 };
 452     static const CGFloat dotted_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 , (CGFloat) 3.0 , (CGFloat) 3.0 };
 453
 454     switch ( pen.GetStyle() )
 455     {
 456         case wxPENSTYLE_SOLID:
 457             break;
 458
 459         case wxPENSTYLE_DOT:
 460             m_count = WXSIZEOF(dotted);
 461             m_userLengths = new CGFloat[ m_count ] ;
 462             memcpy( m_userLengths, dotted, sizeof(dotted) );
 463             m_lengths = m_userLengths;
 464             break;
 465
 466         case wxPENSTYLE_LONG_DASH:
 467             m_count = WXSIZEOF(dashed);
 468             m_lengths = dashed;
 469             break;
 470
 471         case wxPENSTYLE_SHORT_DASH:
 472             m_count = WXSIZEOF(short_dashed);
 473             m_lengths = short_dashed;
 474             break;
 475
 476         case wxPENSTYLE_DOT_DASH:
 477             m_count = WXSIZEOF(dotted_dashed);
 478             m_lengths = dotted_dashed;
 479             break;
 480
 481         case wxPENSTYLE_USER_DASH:
 482             wxDash *dashes;
 483             m_count = pen.GetDashes( &dashes );
 484             if ((dashes != NULL) && (m_count > 0))
 485             {
 486                 m_userLengths = new CGFloat[m_count];
 487                 for ( int i = 0; i < m_count; ++i )
 488                 {
 489                     m_userLengths[i] = dashes[i] * dashUnit;
 490
 491                     if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
 492                         m_userLengths[i] = (CGFloat) (dashUnit + 2.0);
 493                     else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
 494                         m_userLengths[i] = dashUnit;
 495                 }
 496             }
 497             m_lengths = m_userLengths;
 498             break;
 499
 500         case wxPENSTYLE_STIPPLE:
 501             {
 502                 wxBitmap* bmp = pen.GetStipple();
 503                 if ( bmp && bmp->Ok() )
 504                 {
 505                     m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 506                     m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 507                     m_patternColorComponents = new CGFloat[1] ;
 508                     m_patternColorComponents[0] = (CGFloat) 1.0;
 509                     m_isPattern = true;
 510                 }
 511             }
 512             break;
 513
 514         default :
 515             {
 516                 m_isPattern = true;
 517                 m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 518                 m_pattern.reset( (CGPatternRef) *( new HatchPattern( pen.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 519                 m_patternColorComponents = new CGFloat[4] ;
 520                 m_patternColorComponents[0] = (CGFloat) (pen.GetColour().Red() / 255.0);
 521                 m_patternColorComponents[1] = (CGFloat) (pen.GetColour().Green() / 255.0);
 522                 m_patternColorComponents[2] = (CGFloat) (pen.GetColour().Blue() / 255.0);
 523                 m_patternColorComponents[3] =  (CGFloat) (pen.GetColour().Alpha() / 255.0);
 524             }
 525             break;
 526     }
 527     if ((m_lengths != NULL) && (m_count > 0))
 528     {
 529         // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 530         m_cap = kCGLineCapButt;
 531     }
 532 }
 533
 534 wxMacCoreGraphicsPenData::~wxMacCoreGraphicsPenData()
 535 {
 536     delete[] m_userLengths;
 537     delete[] m_patternColorComponents;
 538 }
 539
 540 void wxMacCoreGraphicsPenData::Init()
 541 {
 542     m_lengths = NULL;
 543     m_userLengths = NULL;
 544     m_width = 0;
 545     m_count = 0;
 546     m_patternColorComponents = NULL;
 547     m_isPattern = false;
 548 }
 549
 550 void wxMacCoreGraphicsPenData::Apply( wxGraphicsContext* context )
 551 {
 552     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 553     CGContextSetLineWidth( cg , m_width );
 554     CGContextSetLineJoin( cg , m_join );
 555
 556     CGContextSetLineDash( cg , 0 , m_lengths , m_count );
 557     CGContextSetLineCap( cg , m_cap );
 558
 559     if ( m_isPattern )
 560     {
 561         CGAffineTransform matrix = CGContextGetCTM( cg );
 562         CGContextSetPatternPhase( cg, CGSizeMake(matrix.tx, matrix.ty) );
 563         CGContextSetStrokeColorSpace( cg , m_colorSpace );
 564         CGContextSetStrokePattern( cg, m_pattern , m_patternColorComponents );
 565     }
 566     else
 567     {
 568         CGContextSetStrokeColorWithColor( cg , m_color );
 569     }
 570 }
 571
 572 //
 573 // Brush
 574 //
 575
 576 // make sure we all use one class for all conversions from wx to native colour
 577
 578 class wxMacCoreGraphicsColour
 579 {
 580     public:
 581         wxMacCoreGraphicsColour();
 582         wxMacCoreGraphicsColour(const wxBrush &brush);
 583         ~wxMacCoreGraphicsColour();
 584
 585         void Apply( CGContextRef cgContext );
 586     protected:
 587         void Init();
 588         wxCFRef<CGColorRef> m_color;
 589         wxCFRef<CGColorSpaceRef> m_colorSpace;
 590
 591         bool m_isPattern;
 592         wxCFRef<CGPatternRef> m_pattern;
 593         CGFloat* m_patternColorComponents;
 594 } ;
 595
 596 wxMacCoreGraphicsColour::~wxMacCoreGraphicsColour()
 597 {
 598     delete[] m_patternColorComponents;
 599 }
 600
 601 void wxMacCoreGraphicsColour::Init()
 602 {
 603     m_isPattern = false;
 604     m_patternColorComponents = NULL;
 605 }
 606
 607 void wxMacCoreGraphicsColour::Apply( CGContextRef cgContext )
 608 {
 609     if ( m_isPattern )
 610     {
 611         CGAffineTransform matrix = CGContextGetCTM( cgContext );
 612         CGContextSetPatternPhase( cgContext, CGSizeMake(matrix.tx, matrix.ty) );
 613         CGContextSetFillColorSpace( cgContext , m_colorSpace );
 614         CGContextSetFillPattern( cgContext, m_pattern , m_patternColorComponents );
 615     }
 616     else
 617     {
 618         CGContextSetFillColorWithColor( cgContext, m_color );
 619     }
 620 }
 621
 622 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour()
 623 {
 624     Init();
 625 }
 626
 627 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour( const wxBrush &brush )
 628 {
 629     Init();
 630     if ( brush.GetStyle() == wxSOLID )
 631     {
 632         m_color.reset( wxMacCreateCGColor( brush.GetColour() ));
 633     }
 634     else if ( brush.IsHatch() )
 635     {
 636         m_isPattern = true;
 637         m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 638         m_pattern.reset( (CGPatternRef) *( new HatchPattern( brush.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 639
 640         m_patternColorComponents = new CGFloat[4] ;
 641         m_patternColorComponents[0] = (CGFloat) (brush.GetColour().Red() / 255.0);
 642         m_patternColorComponents[1] = (CGFloat) (brush.GetColour().Green() / 255.0);
 643         m_patternColorComponents[2] = (CGFloat) (brush.GetColour().Blue() / 255.0);
 644         m_patternColorComponents[3] = (CGFloat) (brush.GetColour().Alpha() / 255.0);
 645     }
 646     else
 647     {
 648         // now brush is a bitmap
 649         wxBitmap* bmp = brush.GetStipple();
 650         if ( bmp && bmp->Ok() )
 651         {
 652             m_isPattern = true;
 653             m_patternColorComponents = new CGFloat[1] ;
 654             m_patternColorComponents[0] = (CGFloat) 1.0;
 655             m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 656             m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 657         }
 658     }
 659 }
 660
 661 class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
 662 {
 663 public:
 664     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
 665     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
 666     ~wxMacCoreGraphicsBrushData ();
 667
 668     virtual void Apply( wxGraphicsContext* context );
 669     void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 670         const wxColour&c1, const wxColour&c2 );
 671     void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 672     const wxColour &oColor, const wxColour &cColor );
 673
 674     virtual bool IsShading() { return m_isShading; }
 675     CGShadingRef GetShading() { return m_shading; }
 676 protected:
 677     CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 );
 678     static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
 679     virtual void Init();
 680
 681     wxMacCoreGraphicsColour m_cgColor;
 682
 683     bool m_isShading;
 684     CGFunctionRef m_gradientFunction;
 685     CGShadingRef m_shading;
 686     CGFloat *m_gradientComponents;
 687 };
 688
 689 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
 690 {
 691     Init();
 692 }
 693
 694 void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 695         const wxColour&c1, const wxColour&c2 )
 696 {
 697     m_gradientFunction = CreateGradientFunction( c1, c2 );
 698     m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) x1, (CGFloat) y1),
 699                                         CGPointMake((CGFloat) x2,(CGFloat) y2), m_gradientFunction, true, true ) ;
 700     m_isShading = true ;
 701 }
 702
 703 void wxMacCoreGraphicsBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 704     const wxColour &oColor, const wxColour &cColor )
 705 {
 706     m_gradientFunction = CreateGradientFunction( oColor, cColor );
 707     m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) xo,(CGFloat) yo), 0,
 708                                         CGPointMake((CGFloat) xc,(CGFloat) yc), (CGFloat) radius, m_gradientFunction, true, true ) ;
 709     m_isShading = true ;
 710 }
 711
 712 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer ),
 713     m_cgColor( brush )
 714 {
 715     Init();
 716
 717 }
 718
 719 wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
 720 {
 721     if ( m_shading )
 722         CGShadingRelease(m_shading);
 723
 724     if( m_gradientFunction )
 725         CGFunctionRelease(m_gradientFunction);
 726
 727     delete[] m_gradientComponents;
 728 }
 729
 730 void wxMacCoreGraphicsBrushData::Init()
 731 {
 732     m_gradientFunction = NULL;
 733     m_shading = NULL;
 734     m_gradientComponents = NULL;
 735     m_isShading = false;
 736 }
 737
 738 void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
 739 {
 740     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 741
 742     if ( m_isShading )
 743     {
 744         // nothing to set as shades are processed by clipping using the path and filling
 745     }
 746     else
 747     {
 748         m_cgColor.Apply( cg );
 749     }
 750 }
 751
 752 void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
 753 {
 754     CGFloat* colors = (CGFloat*) info ;
 755     CGFloat f = *in;
 756     for( int i = 0 ; i < 4 ; ++i )
 757     {
 758         out[i] = colors[i] + ( colors[4+i] - colors[i] ) * f;
 759     }
 760 }
 761
 762 CGFunctionRef wxMacCoreGraphicsBrushData::CreateGradientFunction( const wxColour& c1, const wxColour& c2 )
 763 {
 764     static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL };
 765     static const CGFloat input_value_range [2] = { 0, 1 };
 766     static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 };
 767     m_gradientComponents = new CGFloat[8] ;
 768     m_gradientComponents[0] = (CGFloat) (c1.Red() / 255.0);
 769     m_gradientComponents[1] = (CGFloat) (c1.Green() / 255.0);
 770     m_gradientComponents[2] = (CGFloat) (c1.Blue() / 255.0);
 771     m_gradientComponents[3] = (CGFloat) (c1.Alpha() / 255.0);
 772     m_gradientComponents[4] = (CGFloat) (c2.Red() / 255.0);
 773     m_gradientComponents[5] = (CGFloat) (c2.Green() / 255.0);
 774     m_gradientComponents[6] = (CGFloat) (c2.Blue() / 255.0);
 775     m_gradientComponents[7] = (CGFloat) (c2.Alpha() / 255.0);
 776
 777     return CGFunctionCreate ( m_gradientComponents,  1,
 778                             input_value_range,
 779                             4,
 780                             output_value_ranges,
 781                             &callbacks);
 782 }
 783
 784 //
 785 // Font
 786 //
 787
 788 #if wxOSX_USE_IPHONE
 789
 790 extern UIFont* CreateUIFont( const wxFont& font );
 791 extern void DrawTextInContext( CGContextRef context, CGPoint where, UIFont *font, NSString* text );
 792 extern CGSize MeasureTextInContext( UIFont *font, NSString* text );
 793
 794 #endif
 795
 796 class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
 797 {
 798 public:
 799     wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
 800     ~wxMacCoreGraphicsFontData();
 801
 802 #if wxOSX_USE_ATSU_TEXT
 803     virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
 804 #endif
 805 #if wxOSX_USE_CORE_TEXT
 806     CTFontRef OSXGetCTFont() const { return m_ctFont ; }
 807 #endif
 808     wxColour GetColour() const { return m_colour ; }
 809
 810     bool GetUnderlined() const { return m_underlined ; }
 811 #if wxOSX_USE_IPHONE
 812     UIFont* GetUIFont() const { return m_uiFont; }
 813 #endif
 814 private :
 815     wxColour m_colour;
 816     bool m_underlined;
 817 #if wxOSX_USE_ATSU_TEXT
 818     ATSUStyle m_macATSUIStyle;
 819 #endif
 820 #if wxOSX_USE_CORE_TEXT
 821     wxCFRef< CTFontRef > m_ctFont;
 822 #endif
 823 #if wxOSX_USE_IPHONE
 824     UIFont*  m_uiFont;
 825 #endif
 826 };
 827
 828 wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
 829 {
 830     m_colour = col;
 831     m_underlined = font.GetUnderlined();
 832
 833 #if wxOSX_USE_CORE_TEXT
 834     m_ctFont.reset( wxMacCreateCTFont( font ) );
 835 #endif
 836 #if wxOSX_USE_IPHONE
 837     m_uiFont = CreateUIFont(font);
 838     wxMacCocoaRetain( m_uiFont );
 839 #endif
 840 #if wxOSX_USE_ATSU_TEXT
 841     OSStatus status = noErr;
 842     m_macATSUIStyle = NULL;
 843
 844     status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
 845
 846     wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
 847
 848     // we need the scale here ...
 849
 850     Fixed atsuSize = IntToFixed( int( 1 * font.GetPointSize()) );
 851     RGBColor atsuColor ;
 852     col.GetRGBColor( &atsuColor );
 853     ATSUAttributeTag atsuTags[] =
 854     {
 855             kATSUSizeTag ,
 856             kATSUColorTag ,
 857     };
 858     ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
 859     {
 860             sizeof( Fixed ) ,
 861             sizeof( RGBColor ) ,
 862     };
 863     ATSUAttributeValuePtr atsuValues[WXSIZEOF(atsuTags)] =
 864     {
 865             &atsuSize ,
 866             &atsuColor ,
 867     };
 868
 869     status = ::ATSUSetAttributes(
 870         m_macATSUIStyle, WXSIZEOF(atsuTags),
 871         atsuTags, atsuSizes, atsuValues);
 872
 873     wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
 874 #endif
 875 }
 876
 877 wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
 878 {
 879 #if wxOSX_USE_CORE_TEXT
 880 #endif
 881 #if wxOSX_USE_ATSU_TEXT
 882     if ( m_macATSUIStyle )
 883     {
 884         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 885         m_macATSUIStyle = NULL;
 886     }
 887 #endif
 888 #if wxOSX_USE_IPHONE
 889     wxMacCocoaRelease( m_uiFont );
 890 #endif
 891 }
 892
 893 class wxMacCoreGraphicsBitmapData : public wxGraphicsObjectRefData
 894 {
 895 public:
 896     wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome );
 897     ~wxMacCoreGraphicsBitmapData();
 898
 899     virtual CGImageRef GetBitmap() { return m_bitmap; }
 900     bool IsMonochrome() { return m_monochrome; }
 901 private :
 902     CGImageRef m_bitmap;
 903     bool m_monochrome;
 904 };
 905
 906 wxMacCoreGraphicsBitmapData::wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome ) : wxGraphicsObjectRefData( renderer ),
 907     m_bitmap(bitmap), m_monochrome(monochrome)
 908 {
 909 }
 910
 911 wxMacCoreGraphicsBitmapData::~wxMacCoreGraphicsBitmapData()
 912 {
 913     CGImageRelease( m_bitmap );
 914 }
 915
 916 //
 917 // Graphics Matrix
 918 //
 919
 920 //-----------------------------------------------------------------------------
 921 // wxMacCoreGraphicsMatrix declaration
 922 //-----------------------------------------------------------------------------
 923
 924 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
 925 {
 926 public :
 927     wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
 928
 929     virtual ~wxMacCoreGraphicsMatrixData() ;
 930
 931     virtual wxGraphicsObjectRefData *Clone() const ;
 932
 933     // concatenates the matrix
 934     virtual void Concat( const wxGraphicsMatrixData *t );
 935
 936     // sets the matrix to the respective values
 937     virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
 938         wxDouble tx=0.0, wxDouble ty=0.0);
 939
 940     // gets the component valuess of the matrix
 941     virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL,  wxDouble* c=NULL,
 942                      wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
 943
 944     // makes this the inverse matrix
 945     virtual void Invert();
 946
 947     // returns true if the elements of the transformation matrix are equal ?
 948     virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
 949
 950     // return true if this is the identity matrix
 951     virtual bool IsIdentity() const;
 952
 953     //
 954     // transformation
 955     //
 956
 957     // add the translation to this matrix
 958     virtual void Translate( wxDouble dx , wxDouble dy );
 959
 960     // add the scale to this matrix
 961     virtual void Scale( wxDouble xScale , wxDouble yScale );
 962
 963     // add the rotation to this matrix (radians)
 964     virtual void Rotate( wxDouble angle );
 965
 966     //
 967     // apply the transforms
 968     //
 969
 970     // applies that matrix to the point
 971     virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
 972
 973     // applies the matrix except for translations
 974     virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
 975
 976     // returns the native representation
 977     virtual void * GetNativeMatrix() const;
 978
 979 private :
 980     CGAffineTransform m_matrix;
 981 } ;
 982
 983 //-----------------------------------------------------------------------------
 984 // wxMacCoreGraphicsMatrix implementation
 985 //-----------------------------------------------------------------------------
 986
 987 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
 988 {
 989 }
 990
 991 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
 992 {
 993 }
 994
 995 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
 996 {
 997     wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
 998     m->m_matrix = m_matrix ;
 999     return m;
1000 }
1001
1002 // concatenates the matrix
1003 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
1004 {
1005     m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
1006 }
1007
1008 // sets the matrix to the respective values
1009 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
1010     wxDouble tx, wxDouble ty)
1011 {
1012     m_matrix = CGAffineTransformMake((CGFloat) a,(CGFloat) b,(CGFloat) c,(CGFloat) d,(CGFloat) tx,(CGFloat) ty);
1013 }
1014
1015 // gets the component valuess of the matrix
1016 void wxMacCoreGraphicsMatrixData::Get(wxDouble* a, wxDouble* b,  wxDouble* c,
1017                                       wxDouble* d, wxDouble* tx, wxDouble* ty) const
1018 {
1019     if (a)  *a = m_matrix.a;
1020     if (b)  *b = m_matrix.b;
1021     if (c)  *c = m_matrix.c;
1022     if (d)  *d = m_matrix.d;
1023     if (tx) *tx= m_matrix.tx;
1024     if (ty) *ty= m_matrix.ty;
1025 }
1026
1027 // makes this the inverse matrix
1028 void wxMacCoreGraphicsMatrixData::Invert()
1029 {
1030     m_matrix = CGAffineTransformInvert( m_matrix );
1031 }
1032
1033 // returns true if the elements of the transformation matrix are equal ?
1034 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
1035 {
1036     return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
1037 }
1038
1039 // return true if this is the identity matrix
1040 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
1041 {
1042     return ( m_matrix.a == 1 && m_matrix.d == 1 &&
1043         m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
1044 }
1045
1046 //
1047 // transformation
1048 //
1049
1050 // add the translation to this matrix
1051 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
1052 {
1053     m_matrix = CGAffineTransformTranslate( m_matrix, (CGFloat) dx, (CGFloat) dy);
1054 }
1055
1056 // add the scale to this matrix
1057 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1058 {
1059     m_matrix = CGAffineTransformScale( m_matrix, (CGFloat) xScale, (CGFloat) yScale);
1060 }
1061
1062 // add the rotation to this matrix (radians)
1063 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
1064 {
1065     m_matrix = CGAffineTransformRotate( m_matrix, (CGFloat) angle);
1066 }
1067
1068 //
1069 // apply the transforms
1070 //
1071
1072 // applies that matrix to the point
1073 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1074 {
1075     CGPoint pt = CGPointApplyAffineTransform( CGPointMake((CGFloat) *x,(CGFloat) *y), m_matrix);
1076
1077     *x = pt.x;
1078     *y = pt.y;
1079 }
1080
1081 // applies the matrix except for translations
1082 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1083 {
1084     CGSize sz = CGSizeApplyAffineTransform( CGSizeMake((CGFloat) *dx,(CGFloat) *dy) , m_matrix );
1085     *dx = sz.width;
1086     *dy = sz.height;
1087 }
1088
1089 // returns the native representation
1090 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
1091 {
1092     return (void*) &m_matrix;
1093 }
1094
1095 //
1096 // Graphics Path
1097 //
1098
1099 //-----------------------------------------------------------------------------
1100 // wxMacCoreGraphicsPath declaration
1101 //-----------------------------------------------------------------------------
1102
1103 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
1104 {
1105 public :
1106     wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
1107
1108     ~wxMacCoreGraphicsPathData();
1109
1110     virtual wxGraphicsObjectRefData *Clone() const;
1111
1112     // begins a new subpath at (x,y)
1113     virtual void MoveToPoint( wxDouble x, wxDouble y );
1114
1115     // adds a straight line from the current point to (x,y)
1116     virtual void AddLineToPoint( wxDouble x, wxDouble y );
1117
1118     // adds a cubic Bezier curve from the current point, using two control points and an end point
1119     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
1120
1121     // closes the current sub-path
1122     virtual void CloseSubpath();
1123
1124     // gets the last point of the current path, (0,0) if not yet set
1125     virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
1126
1127     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1128     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
1129
1130     //
1131     // These are convenience functions which - if not available natively will be assembled
1132     // using the primitives from above
1133     //
1134
1135     // adds a quadratic Bezier curve from the current point, using a control point and an end point
1136     virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
1137
1138     // appends a rectangle as a new closed subpath
1139     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1140
1141     // appends a circle as a new closed subpath
1142     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1143
1144     // appends an ellipsis as a new closed subpath fitting the passed rectangle
1145     virtual void AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
1146
1147     // 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)
1148     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1149
1150     // adds another path
1151     virtual void AddPath( const wxGraphicsPathData* path );
1152
1153     // returns the native path
1154     virtual void * GetNativePath() const { return m_path; }
1155
1156     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1157     virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1158
1159     // transforms each point of this path by the matrix
1160     virtual void Transform( const wxGraphicsMatrixData* matrix );
1161
1162     // gets the bounding box enclosing all points (possibly including control points)
1163     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
1164
1165     virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
1166 private :
1167     CGMutablePathRef m_path;
1168 };
1169
1170 //-----------------------------------------------------------------------------
1171 // wxMacCoreGraphicsPath implementation
1172 //-----------------------------------------------------------------------------
1173
1174 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1175 {
1176     if ( path )
1177         m_path = path;
1178     else
1179         m_path = CGPathCreateMutable();
1180 }
1181
1182 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1183 {
1184     CGPathRelease( m_path );
1185 }
1186
1187 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1188 {
1189     wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1190     return clone ;
1191 }
1192
1193
1194 // opens (starts) a new subpath
1195 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1196 {
1197     CGPathMoveToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1198 }
1199
1200 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1201 {
1202     CGPathAddLineToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1203 }
1204
1205 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1206 {
1207     CGPathAddCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) cx2, (CGFloat) cy2, (CGFloat) x , (CGFloat) y );
1208 }
1209
1210 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1211 {
1212     CGPathAddQuadCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) x , (CGFloat) y );
1213 }
1214
1215 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1216 {
1217     CGRect cgRect = { { (CGFloat) x , (CGFloat) y } , { (CGFloat) w , (CGFloat) h } };
1218     CGPathAddRect( m_path , NULL , cgRect );
1219 }
1220
1221 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1222 {
1223     CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x-r,y-r,2*r,2*r));
1224 }
1225
1226 void wxMacCoreGraphicsPathData::AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1227 {
1228     CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x,y,w,h));
1229 }
1230
1231 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1232 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1233 {
1234     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1235     CGPathAddArc( m_path, NULL , (CGFloat) x, (CGFloat) y, (CGFloat) r, (CGFloat) startAngle, (CGFloat) endAngle, !clockwise);
1236 }
1237
1238 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1239 {
1240     CGPathAddArcToPoint( m_path, NULL , (CGFloat) x1, (CGFloat) y1, (CGFloat) x2, (CGFloat) y2, (CGFloat) r);
1241 }
1242
1243 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1244 {
1245     CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1246 }
1247
1248 // closes the current subpath
1249 void wxMacCoreGraphicsPathData::CloseSubpath()
1250 {
1251     CGPathCloseSubpath( m_path );
1252 }
1253
1254 // gets the last point of the current path, (0,0) if not yet set
1255 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1256 {
1257     CGPoint p = CGPathGetCurrentPoint( m_path );
1258     *x = p.x;
1259     *y = p.y;
1260 }
1261
1262 // transforms each point of this path by the matrix
1263 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1264 {
1265     CGMutablePathRef p = CGPathCreateMutable() ;
1266     CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1267     CGPathRelease( m_path );
1268     m_path = p;
1269 }
1270
1271 // gets the bounding box enclosing all points (possibly including control points)
1272 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1273 {
1274     CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1275     *x = bounds.origin.x;
1276     *y = bounds.origin.y;
1277     *w = bounds.size.width;
1278     *h = bounds.size.height;
1279 }
1280
1281 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle) const
1282 {
1283     return CGPathContainsPoint( m_path, NULL, CGPointMake((CGFloat) x,(CGFloat) y), fillStyle == wxODDEVEN_RULE );
1284 }
1285
1286 //
1287 // Graphics Context
1288 //
1289
1290 //-----------------------------------------------------------------------------
1291 // wxMacCoreGraphicsContext declaration
1292 //-----------------------------------------------------------------------------
1293
1294 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1295 {
1296 public:
1297     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1298
1299 #if wxOSX_USE_CARBON
1300     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1301 #endif
1302
1303     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1304
1305     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1306
1307     wxMacCoreGraphicsContext();
1308
1309     ~wxMacCoreGraphicsContext();
1310
1311     void Init();
1312
1313     // returns the size of the graphics context in device coordinates
1314     virtual void GetSize( wxDouble* width, wxDouble* height);
1315
1316     virtual void StartPage( wxDouble width, wxDouble height );
1317
1318     virtual void EndPage();
1319
1320     virtual void Flush();
1321
1322     // push the current state of the context, ie the transformation matrix on a stack
1323     virtual void PushState();
1324
1325     // pops a stored state from the stack
1326     virtual void PopState();
1327
1328     // clips drawings to the region
1329     virtual void Clip( const wxRegion &region );
1330
1331     // clips drawings to the rect
1332     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1333
1334     // resets the clipping to original extent
1335     virtual void ResetClip();
1336
1337     virtual void * GetNativeContext();
1338
1339     virtual bool SetAntialiasMode(wxAntialiasMode antialias);
1340
1341     virtual bool SetCompositionMode(wxCompositionMode op);
1342
1343     virtual void BeginLayer(wxDouble opacity);
1344
1345     virtual void EndLayer();
1346
1347     //
1348     // transformation
1349     //
1350
1351     // translate
1352     virtual void Translate( wxDouble dx , wxDouble dy );
1353
1354     // scale
1355     virtual void Scale( wxDouble xScale , wxDouble yScale );
1356
1357     // rotate (radians)
1358     virtual void Rotate( wxDouble angle );
1359
1360     // concatenates this transform with the current transform of this context
1361     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1362
1363     // sets the transform of this context
1364     virtual void SetTransform( const wxGraphicsMatrix& matrix );
1365
1366     // gets the matrix of this context
1367     virtual wxGraphicsMatrix GetTransform() const;
1368     //
1369     // setting the paint
1370     //
1371
1372     // strokes along a path with the current pen
1373     virtual void StrokePath( const wxGraphicsPath &path );
1374
1375     // fills a path with the current brush
1376     virtual void FillPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1377
1378     // draws a path by first filling and then stroking
1379     virtual void DrawPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1380
1381     virtual bool ShouldOffset() const
1382     {
1383         int penwidth = 0 ;
1384         if ( !m_pen.IsNull() )
1385         {
1386             penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1387             if ( penwidth == 0 )
1388                 penwidth = 1;
1389         }
1390         return ( penwidth % 2 ) == 1;
1391     }
1392     //
1393     // text
1394     //
1395
1396     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1397         wxDouble *descent, wxDouble *externalLeading ) const;
1398
1399     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1400
1401     //
1402     // image support
1403     //
1404
1405     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1406
1407     virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1408
1409     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1410
1411     void SetNativeContext( CGContextRef cg );
1412
1413     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsContext)
1414
1415 private:
1416     bool EnsureIsValid();
1417
1418     virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
1419     virtual void DoDrawRotatedText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1420
1421     CGContextRef m_cgContext;
1422 #if wxOSX_USE_CARBON
1423     WindowRef m_windowRef;
1424 #else
1425     WXWidget m_view;
1426 #endif
1427     bool m_contextSynthesized;
1428     CGAffineTransform m_windowTransform;
1429     wxDouble m_width;
1430     wxDouble m_height;
1431     bool m_invisible;
1432
1433 #if wxOSX_USE_COCOA_OR_CARBON
1434     wxCFRef<HIShapeRef> m_clipRgn;
1435 #endif
1436 };
1437
1438 //-----------------------------------------------------------------------------
1439 // device context implementation
1440 //
1441 // more and more of the dc functionality should be implemented by calling
1442 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1443 // also coordinate conversions should be moved to native matrix ops
1444 //-----------------------------------------------------------------------------
1445
1446 // we always stock two context states, one at entry, to be able to preserve the
1447 // state we were called with, the other one after changing to HI Graphics orientation
1448 // (this one is used for getting back clippings etc)
1449
1450 //-----------------------------------------------------------------------------
1451 // wxMacCoreGraphicsContext implementation
1452 //-----------------------------------------------------------------------------
1453
1454 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1455
1456 class wxQuartzOffsetHelper
1457 {
1458 public :
1459     wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1460     {
1461         m_cg = cg;
1462         m_offset = offset;
1463         if ( m_offset )
1464         {
1465             m_userOffset = CGContextConvertSizeToUserSpace( m_cg, CGSizeMake( 0.5 , 0.5 ) );
1466             CGContextTranslateCTM( m_cg, m_userOffset.width , m_userOffset.height );
1467         }
1468     }
1469     ~wxQuartzOffsetHelper( )
1470     {
1471         if ( m_offset )
1472             CGContextTranslateCTM( m_cg, -m_userOffset.width , -m_userOffset.height );
1473     }
1474 public :
1475     CGSize m_userOffset;
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 wxOSX_USE_COCOA
1523     if ( ! window->GetPeer()->IsFlipped() )
1524     {
1525         m_windowTransform = CGAffineTransformMakeTranslation( 0 , m_height );
1526         m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1527     }
1528     else
1529 #endif
1530     {
1531         m_windowTransform = CGAffineTransformIdentity;
1532     }
1533 #else
1534     int originX , originY;
1535     originX = originY = 0;
1536     Rect bounds = { 0,0,0,0 };
1537     m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1538     window->MacWindowToRootWindow( &originX , &originY );
1539     GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1540     m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1541     m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1542     m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1543 #endif
1544 }
1545
1546 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1547 {
1548     Init();
1549 }
1550
1551 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1552 {
1553     Init();
1554     wxLogDebug(wxT("Illegal Constructor called"));
1555 }
1556
1557 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1558 {
1559     SetNativeContext(NULL);
1560 }
1561
1562 void wxMacCoreGraphicsContext::GetSize( wxDouble* width, wxDouble* height)
1563 {
1564     *width = m_width;
1565     *height = m_height;
1566 }
1567
1568
1569 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1570 {
1571     CGRect r;
1572     if ( width != 0 && height != 0)
1573         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) width  , (CGFloat) height );
1574     else
1575         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) m_width  , (CGFloat) m_height );
1576
1577     CGContextBeginPage(m_cgContext,  &r );
1578 //    CGContextTranslateCTM( m_cgContext , 0 ,  height == 0 ? m_height : height );
1579 //    CGContextScaleCTM( m_cgContext , 1 , -1 );
1580 }
1581
1582 void wxMacCoreGraphicsContext::EndPage()
1583 {
1584     CGContextEndPage(m_cgContext);
1585 }
1586
1587 void wxMacCoreGraphicsContext::Flush()
1588 {
1589     CGContextFlush(m_cgContext);
1590 }
1591
1592 bool wxMacCoreGraphicsContext::EnsureIsValid()
1593 {
1594     if ( !m_cgContext )
1595     {
1596         if (m_invisible)
1597             return false;
1598
1599 #if wxOSX_USE_COCOA
1600         if ( wxOSXLockFocus(m_view) )
1601         {
1602             m_cgContext = wxOSXGetContextFromCurrentContext();
1603             wxASSERT_MSG( m_cgContext != NULL, wxT("Unable to retrieve drawing context from View"));
1604         }
1605         else
1606         {
1607             m_invisible = true;
1608         }
1609 #endif
1610 #if wxOSX_USE_IPHONE
1611         m_cgContext = wxOSXGetContextFromCurrentContext();
1612         if ( m_cgContext == NULL )
1613         {
1614             m_invisible = true;
1615         }
1616 #endif
1617 #if wxOSX_USE_CARBON
1618         OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1619         if ( status != noErr )
1620         {
1621             wxFAIL_MSG("Cannot nest wxDCs on the same window");
1622         }
1623 #endif
1624         if ( m_cgContext )
1625         {
1626             CGContextSaveGState( m_cgContext );
1627             CGContextConcatCTM( m_cgContext, m_windowTransform );
1628             CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
1629             m_contextSynthesized = true;
1630 #if wxOSX_USE_COCOA_OR_CARBON
1631             if ( m_clipRgn.get() )
1632             {
1633                 // the clip region is in device coordinates, so we convert this again to user coordinates
1634                 wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1635                 CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero,m_windowTransform);
1636                 HIShapeOffset( hishape, -transformedOrigin.x, -transformedOrigin.y );
1637                 // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1638                 if ( HIShapeIsEmpty(hishape))
1639                 {
1640                     CGRect empty = CGRectMake( 0,0,0,0 );
1641                     CGContextClipToRect( m_cgContext, empty );
1642                 }
1643                 else
1644                 {
1645                     HIShapeReplacePathInCGContext( hishape, m_cgContext );
1646                     CGContextClip( m_cgContext );
1647                 }
1648             }
1649 #endif
1650             CGContextSaveGState( m_cgContext );
1651
1652 #if 0 // turn on for debugging of clientdc
1653             static float color = 0.5 ;
1654             static int channel = 0 ;
1655             CGRect bounds = CGRectMake(-1000,-1000,2000,2000);
1656             CGContextSetRGBFillColor( m_cgContext, channel == 0 ? color : 0.5 ,
1657                 channel == 1 ? color : 0.5 , channel == 2 ? color : 0.5 , 1 );
1658             CGContextFillRect( m_cgContext, bounds );
1659             color += 0.1 ;
1660             if ( color > 0.9 )
1661             {
1662                 color = 0.5 ;
1663                 channel++ ;
1664                 if ( channel == 3 )
1665                     channel = 0 ;
1666             }
1667 #endif
1668         }
1669     }
1670     return m_cgContext != NULL;
1671 }
1672
1673 bool wxMacCoreGraphicsContext::SetAntialiasMode(wxAntialiasMode antialias)
1674 {
1675     if (!EnsureIsValid())
1676         return true;
1677
1678     if (m_antialias == antialias)
1679         return true;
1680
1681     m_antialias = antialias;
1682
1683     bool antialiasMode;
1684     switch (antialias)
1685     {
1686         case wxANTIALIAS_DEFAULT:
1687             antialiasMode = true;
1688             break;
1689         case wxANTIALIAS_NONE:
1690             antialiasMode = false;
1691             break;
1692         default:
1693             return false;
1694     }
1695     CGContextSetShouldAntialias(m_cgContext, antialiasMode);
1696     return true;
1697 }
1698
1699 bool wxMacCoreGraphicsContext::SetCompositionMode(wxCompositionMode op)
1700 {
1701     if (!EnsureIsValid())
1702         return true;
1703
1704     if ( m_composition == op )
1705         return true;
1706
1707     m_composition = op;
1708
1709     if (m_composition == wxCOMPOSITION_DEST)
1710         return true;
1711
1712 #if wxOSX_USE_COCOA_OR_CARBON
1713     if ( UMAGetSystemVersion() < 0x1060 )
1714     {
1715         CGCompositeOperation cop = kCGCompositeOperationSourceOver;
1716         CGBlendMode mode = kCGBlendModeNormal;
1717         switch( op )
1718         {
1719         case wxCOMPOSITION_CLEAR:
1720             cop = kCGCompositeOperationClear;
1721             break;
1722         case wxCOMPOSITION_SOURCE:
1723             cop = kCGCompositeOperationCopy;
1724             break;
1725         case wxCOMPOSITION_OVER:
1726             mode = kCGBlendModeNormal;
1727             break;
1728         case wxCOMPOSITION_IN:
1729             cop = kCGCompositeOperationSourceIn;
1730             break;
1731         case wxCOMPOSITION_OUT:
1732             cop = kCGCompositeOperationSourceOut;
1733             break;
1734         case wxCOMPOSITION_ATOP:
1735             cop = kCGCompositeOperationSourceAtop;
1736             break;
1737         case wxCOMPOSITION_DEST_OVER:
1738             cop = kCGCompositeOperationDestinationOver;
1739             break;
1740         case wxCOMPOSITION_DEST_IN:
1741             cop = kCGCompositeOperationDestinationIn;
1742             break;
1743         case wxCOMPOSITION_DEST_OUT:
1744             cop = kCGCompositeOperationDestinationOut;
1745             break;
1746         case wxCOMPOSITION_DEST_ATOP:
1747            cop = kCGCompositeOperationDestinationAtop;
1748             break;
1749         case wxCOMPOSITION_XOR:
1750             cop = kCGCompositeOperationXOR;
1751             break;
1752 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1753         case wxCOMPOSITION_ADD:
1754             mode = kCGBlendModePlusLighter ;
1755             break;
1756 #endif
1757         default:
1758             return false;
1759         }
1760         if ( cop != kCGCompositeOperationSourceOver )
1761             CGContextSetCompositeOperation(m_cgContext, cop);
1762         else
1763             CGContextSetBlendMode(m_cgContext, mode);
1764     }
1765 #endif
1766 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1767     else
1768     {
1769         CGBlendMode mode = kCGBlendModeNormal;
1770         switch( op )
1771         {
1772         case wxCOMPOSITION_CLEAR:
1773             mode = kCGBlendModeClear;
1774             break;
1775         case wxCOMPOSITION_SOURCE:
1776             mode = kCGBlendModeCopy;
1777             break;
1778         case wxCOMPOSITION_OVER:
1779             mode = kCGBlendModeNormal;
1780             break;
1781         case wxCOMPOSITION_IN:
1782             mode = kCGBlendModeSourceIn;
1783             break;
1784         case wxCOMPOSITION_OUT:
1785             mode = kCGBlendModeSourceOut;
1786             break;
1787         case wxCOMPOSITION_ATOP:
1788             mode = kCGBlendModeSourceAtop;
1789             break;
1790         case wxCOMPOSITION_DEST_OVER:
1791             mode = kCGBlendModeDestinationOver;
1792             break;
1793         case wxCOMPOSITION_DEST_IN:
1794             mode = kCGBlendModeDestinationIn;
1795             break;
1796         case wxCOMPOSITION_DEST_OUT:
1797             mode = kCGBlendModeDestinationOut;
1798             break;
1799         case wxCOMPOSITION_DEST_ATOP:
1800            mode = kCGBlendModeDestinationAtop;
1801             break;
1802         case wxCOMPOSITION_XOR:
1803             mode = kCGBlendModeXOR;
1804             break;
1805
1806         case wxCOMPOSITION_ADD:
1807             mode = kCGBlendModePlusLighter ;
1808             break;
1809         default:
1810             return false;
1811         }
1812         CGContextSetBlendMode(m_cgContext, mode);
1813     }
1814 #endif
1815     return true;
1816 }
1817
1818 void wxMacCoreGraphicsContext::BeginLayer(wxDouble opacity)
1819 {
1820     CGContextSaveGState(m_cgContext);
1821     CGContextSetAlpha(m_cgContext, (CGFloat) opacity);
1822     CGContextBeginTransparencyLayer(m_cgContext, 0);
1823 }
1824
1825 void wxMacCoreGraphicsContext::EndLayer()
1826 {
1827     CGContextEndTransparencyLayer(m_cgContext);
1828     CGContextRestoreGState(m_cgContext);
1829 }
1830
1831 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1832 {
1833 #if wxOSX_USE_COCOA_OR_CARBON
1834     if( m_cgContext )
1835     {
1836         wxCFRef<HIShapeRef> shape = wxCFRefFromGet(region.GetWXHRGN());
1837         // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1838         if ( HIShapeIsEmpty(shape))
1839         {
1840             CGRect empty = CGRectMake( 0,0,0,0 );
1841             CGContextClipToRect( m_cgContext, empty );
1842         }
1843         else
1844         {
1845             HIShapeReplacePathInCGContext( shape, m_cgContext );
1846             CGContextClip( m_cgContext );
1847         }
1848     }
1849     else
1850     {
1851         // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1852         // to regions we try at least to have correct translations
1853         HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1854
1855         CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1856         HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1857         m_clipRgn.reset(mutableShape);
1858     }
1859 #else
1860     // allow usage as measuring context
1861     // wxASSERT_MSG( m_cgContext != NULL, "Needs a valid context for clipping" );
1862 #endif
1863 }
1864
1865 // clips drawings to the rect
1866 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1867 {
1868     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1869     if ( m_cgContext )
1870     {
1871         CGContextClipToRect( m_cgContext, r );
1872     }
1873     else
1874     {
1875 #if wxOSX_USE_COCOA_OR_CARBON
1876         // the clipping itself must be stored as device coordinates, otherwise
1877         // we cannot apply it back correctly
1878         r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
1879         m_clipRgn.reset(HIShapeCreateWithRect(&r));
1880 #else
1881     // allow usage as measuring context
1882     // wxFAIL_MSG( "Needs a valid context for clipping" );
1883 #endif
1884     }
1885 }
1886
1887     // resets the clipping to original extent
1888 void wxMacCoreGraphicsContext::ResetClip()
1889 {
1890     if ( m_cgContext )
1891     {
1892         // there is no way for clearing the clip, we can only revert to the stored
1893         // state, but then we have to make sure everything else is NOT restored
1894         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1895         CGContextRestoreGState( m_cgContext );
1896         CGContextSaveGState( m_cgContext );
1897         CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
1898         transformNew = CGAffineTransformInvert( transformNew ) ;
1899         CGContextConcatCTM( m_cgContext, transformNew);
1900         CGContextConcatCTM( m_cgContext, transform);
1901     }
1902     else
1903     {
1904 #if wxOSX_USE_COCOA_OR_CARBON
1905         m_clipRgn.reset();
1906 #else
1907     // allow usage as measuring context
1908     // wxFAIL_MSG( "Needs a valid context for clipping" );
1909 #endif
1910     }
1911 }
1912
1913 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1914 {
1915     if ( m_pen.IsNull() )
1916         return ;
1917
1918     if (!EnsureIsValid())
1919         return;
1920
1921     if (m_composition == wxCOMPOSITION_DEST)
1922         return;
1923
1924     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1925
1926     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1927     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1928     CGContextStrokePath( m_cgContext );
1929 }
1930
1931 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1932 {
1933     if (!EnsureIsValid())
1934         return;
1935
1936     if (m_composition == wxCOMPOSITION_DEST)
1937         return;
1938
1939     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1940     {
1941         // when using shading, we cannot draw pen and brush at the same time
1942         // revert to the base implementation of first filling and then stroking
1943         wxGraphicsContext::DrawPath( path, fillStyle );
1944         return;
1945     }
1946
1947     CGPathDrawingMode mode = kCGPathFill ;
1948     if ( m_brush.IsNull() )
1949     {
1950         if ( m_pen.IsNull() )
1951             return;
1952         else
1953             mode = kCGPathStroke;
1954     }
1955     else
1956     {
1957         if ( m_pen.IsNull() )
1958         {
1959             if ( fillStyle == wxODDEVEN_RULE )
1960                 mode = kCGPathEOFill;
1961             else
1962                 mode = kCGPathFill;
1963         }
1964         else
1965         {
1966             if ( fillStyle == wxODDEVEN_RULE )
1967                 mode = kCGPathEOFillStroke;
1968             else
1969                 mode = kCGPathFillStroke;
1970         }
1971     }
1972
1973     if ( !m_brush.IsNull() )
1974         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1975     if ( !m_pen.IsNull() )
1976         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1977
1978     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1979
1980     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1981     CGContextDrawPath( m_cgContext , mode );
1982 }
1983
1984 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1985 {
1986     if ( m_brush.IsNull() )
1987         return;
1988
1989     if (!EnsureIsValid())
1990         return;
1991
1992     if (m_composition == wxCOMPOSITION_DEST)
1993         return;
1994
1995     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1996     {
1997         CGContextSaveGState( m_cgContext );
1998         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1999         CGContextClip( m_cgContext );
2000         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2001         CGContextRestoreGState( m_cgContext);
2002     }
2003     else
2004     {
2005         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2006         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2007         if ( fillStyle == wxODDEVEN_RULE )
2008             CGContextEOFillPath( m_cgContext );
2009         else
2010             CGContextFillPath( m_cgContext );
2011     }
2012 }
2013
2014 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
2015 {
2016     // we allow either setting or clearing but not replacing
2017     wxASSERT( m_cgContext == NULL || cg == NULL );
2018
2019     if ( m_cgContext )
2020     {
2021         CGContextRestoreGState( m_cgContext );
2022         CGContextRestoreGState( m_cgContext );
2023         if ( m_contextSynthesized )
2024         {
2025 #if wxOSX_USE_CARBON
2026             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
2027 #endif
2028 #if wxOSX_USE_COCOA
2029             wxOSXUnlockFocus(m_view);
2030 #endif
2031         }
2032         else
2033             CGContextRelease(m_cgContext);
2034     }
2035
2036     m_cgContext = cg;
2037
2038     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
2039     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
2040     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
2041     // for this one operation.
2042
2043     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
2044     // can be removed.
2045     if (m_cgContext)
2046     {
2047         CGContextRetain(m_cgContext);
2048         CGContextSaveGState( m_cgContext );
2049         CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
2050         CGContextSaveGState( m_cgContext );
2051         m_contextSynthesized = false;
2052     }
2053 }
2054
2055 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
2056 {
2057     if ( m_cgContext )
2058         CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
2059     else
2060         m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
2061 }
2062
2063 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
2064 {
2065     if ( m_cgContext )
2066         CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
2067     else
2068         m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
2069 }
2070
2071 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
2072 {
2073     if ( m_cgContext )
2074         CGContextRotateCTM( m_cgContext , (CGFloat) angle );
2075     else
2076         m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
2077 }
2078
2079 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2080 {
2081     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
2082     DrawBitmap(bitmap, x, y, w, h);
2083 }
2084
2085 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2086 {
2087     if (!EnsureIsValid())
2088         return;
2089
2090     if (m_composition == wxCOMPOSITION_DEST)
2091         return;
2092
2093 #ifdef __WXMAC__
2094     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2095     CGImageRef image = refdata->GetBitmap();
2096     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2097     if ( refdata->IsMonochrome() == 1 )
2098     {
2099         // is is a mask, the '1' in the mask tell where to draw the current brush
2100         if (  !m_brush.IsNull() )
2101         {
2102             if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2103             {
2104                 // TODO clip to mask
2105             /*
2106                 CGContextSaveGState( m_cgContext );
2107                 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2108                 CGContextClip( m_cgContext );
2109                 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2110                 CGContextRestoreGState( m_cgContext);
2111             */
2112             }
2113             else
2114             {
2115                 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2116                 wxMacDrawCGImage( m_cgContext , &r , image );
2117             }
2118         }
2119     }
2120     else
2121     {
2122         wxMacDrawCGImage( m_cgContext , &r , image );
2123     }
2124 #endif
2125 }
2126
2127 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2128 {
2129     if (!EnsureIsValid())
2130         return;
2131
2132     if (m_composition == wxCOMPOSITION_DEST)
2133         return;
2134
2135     CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
2136     CGContextSaveGState( m_cgContext );
2137     CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
2138     CGContextScaleCTM( m_cgContext, 1, -1 );
2139 #if wxOSX_USE_COCOA_OR_CARBON
2140     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
2141         NULL , kPlotIconRefNormalFlags , icon.GetHICON() );
2142 #endif
2143     CGContextRestoreGState( m_cgContext );
2144 }
2145
2146 void wxMacCoreGraphicsContext::PushState()
2147 {
2148     if (!EnsureIsValid())
2149         return;
2150
2151     CGContextSaveGState( m_cgContext );
2152 }
2153
2154 void wxMacCoreGraphicsContext::PopState()
2155 {
2156     if (!EnsureIsValid())
2157         return;
2158
2159     CGContextRestoreGState( m_cgContext );
2160 }
2161
2162 void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDouble y )
2163 {
2164     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2165
2166     if (!EnsureIsValid())
2167         return;
2168
2169     if (m_composition == wxCOMPOSITION_DEST)
2170         return;
2171
2172 #if wxOSX_USE_CORE_TEXT
2173     if ( UMAGetSystemVersion() >= 0x1050 )
2174     {
2175         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2176         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2177         CTFontRef font = fref->OSXGetCTFont();
2178         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2179         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
2180         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
2181          CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
2182         CFTypeRef values[] = { font, col, underlined };
2183         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2184                                                         WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2185         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2186         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2187
2188         y += CTFontGetAscent(font);
2189
2190         CGContextSaveGState(m_cgContext);
2191         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2192         CGContextScaleCTM(m_cgContext, 1, -1);
2193         CGContextSetTextPosition(m_cgContext, 0, 0);
2194         CTLineDraw( line, m_cgContext );
2195         CGContextRestoreGState(m_cgContext);
2196         CFRelease( col );
2197         return;
2198     }
2199 #endif
2200 #if wxOSX_USE_ATSU_TEXT
2201     {
2202         DrawText(str, x, y, 0.0);
2203         return;
2204     }
2205 #endif
2206 #if wxOSX_USE_IPHONE
2207     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2208
2209     CGContextSaveGState(m_cgContext);
2210
2211     CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2212     CGContextSetTextDrawingMode (m_cgContext, kCGTextFill);
2213     CGContextSetFillColorWithColor( m_cgContext, col );
2214
2215     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2216     DrawTextInContext( m_cgContext, CGPointMake( x, y ), fref->GetUIFont() , text.AsNSString() );
2217
2218     CGContextRestoreGState(m_cgContext);
2219     CFRelease( col );
2220 #endif
2221 }
2222
2223 void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
2224                                                  wxDouble x, wxDouble y,
2225                                                  wxDouble angle)
2226 {
2227     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2228
2229     if (!EnsureIsValid())
2230         return;
2231
2232     if (m_composition == wxCOMPOSITION_DEST)
2233         return;
2234
2235 #if wxOSX_USE_CORE_TEXT
2236     if ( UMAGetSystemVersion() >= 0x1050 )
2237     {
2238         // default implementation takes care of rotation and calls non rotated DrawText afterwards
2239         wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2240         return;
2241     }
2242 #endif
2243 #if wxOSX_USE_ATSU_TEXT
2244     {
2245         OSStatus status = noErr;
2246         ATSUTextLayout atsuLayout;
2247         wxMacUniCharBuffer unibuf( str );
2248         UniCharCount chars = unibuf.GetChars();
2249
2250         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2251         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2252                                                    &chars , &style , &atsuLayout );
2253
2254         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
2255
2256         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2257         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2258
2259         int iAngle = int( angle * RAD2DEG );
2260         if ( abs(iAngle) > 0 )
2261         {
2262             Fixed atsuAngle = IntToFixed( iAngle );
2263             ATSUAttributeTag atsuTags[] =
2264             {
2265                 kATSULineRotationTag ,
2266             };
2267             ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2268             {
2269                 sizeof( Fixed ) ,
2270             };
2271             ATSUAttributeValuePtr    atsuValues[WXSIZEOF(atsuTags)] =
2272             {
2273                 &atsuAngle ,
2274             };
2275             status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2276                                              atsuTags, atsuSizes, atsuValues );
2277         }
2278
2279         {
2280             ATSUAttributeTag atsuTags[] =
2281             {
2282                 kATSUCGContextTag ,
2283             };
2284             ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2285             {
2286                 sizeof( CGContextRef ) ,
2287             };
2288             ATSUAttributeValuePtr    atsuValues[WXSIZEOF(atsuTags)] =
2289             {
2290                 &m_cgContext ,
2291             };
2292             status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2293                                              atsuTags, atsuSizes, atsuValues );
2294         }
2295
2296         ATSUTextMeasurement textBefore, textAfter;
2297         ATSUTextMeasurement ascent, descent;
2298
2299         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2300                                             &textBefore , &textAfter, &ascent , &descent );
2301
2302         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2303
2304         Rect rect;
2305         x += (int)(sin(angle) * FixedToInt(ascent));
2306         y += (int)(cos(angle) * FixedToInt(ascent));
2307
2308         status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2309                                         IntToFixed(x) , IntToFixed(y) , &rect );
2310         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2311
2312         CGContextSaveGState(m_cgContext);
2313         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2314         CGContextScaleCTM(m_cgContext, 1, -1);
2315         status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2316                                 IntToFixed(0) , IntToFixed(0) );
2317
2318         wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2319
2320         CGContextRestoreGState(m_cgContext);
2321
2322         ::ATSUDisposeTextLayout(atsuLayout);
2323
2324         return;
2325     }
2326 #endif
2327 #if wxOSX_USE_IPHONE
2328     // default implementation takes care of rotation and calls non rotated DrawText afterwards
2329     wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2330 #endif
2331 }
2332
2333 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2334                             wxDouble *descent, wxDouble *externalLeading ) const
2335 {
2336     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::GetTextExtent - no valid font set") );
2337
2338     if ( width )
2339         *width = 0;
2340     if ( height )
2341         *height = 0;
2342     if ( descent )
2343         *descent = 0;
2344     if ( externalLeading )
2345         *externalLeading = 0;
2346
2347     if (str.empty())
2348         return;
2349
2350 #if wxOSX_USE_CORE_TEXT
2351     if ( UMAGetSystemVersion() >= 0x1050 )
2352     {
2353         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2354         CTFontRef font = fref->OSXGetCTFont();
2355
2356         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2357         CFStringRef keys[] = { kCTFontAttributeName  };
2358         CFTypeRef values[] = { font };
2359         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2360                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2361         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2362         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2363
2364         // round the returned extent: this is probably more correct anyhow but
2365         // we also need to do it to be consistent with GetPartialTextExtents()
2366         // below and avoid strange situation when the last partial extent
2367         // returned by it could have been greater than the full extent returned
2368         // by us
2369         CGFloat a, d, l;
2370         int w = CTLineGetTypographicBounds(line, &a, &d, &l) + 0.5;
2371
2372         if ( height )
2373             *height = a+d+l;
2374         if ( descent )
2375             *descent = d;
2376         if ( externalLeading )
2377             *externalLeading = l;
2378         if ( width )
2379             *width = w;
2380         return;
2381     }
2382 #endif
2383 #if wxOSX_USE_ATSU_TEXT
2384     {
2385         OSStatus status = noErr;
2386
2387         ATSUTextLayout atsuLayout;
2388         wxMacUniCharBuffer unibuf( str );
2389         UniCharCount chars = unibuf.GetChars();
2390
2391         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2392         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2393                                                    &chars , &style , &atsuLayout );
2394
2395         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2396
2397         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2398         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2399
2400         ATSUTextMeasurement textBefore, textAfter;
2401         ATSUTextMeasurement textAscent, textDescent;
2402
2403         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2404                                             &textBefore , &textAfter, &textAscent , &textDescent );
2405
2406         if ( height )
2407             *height = FixedToInt(textAscent + textDescent);
2408         if ( descent )
2409             *descent = FixedToInt(textDescent);
2410         if ( externalLeading )
2411             *externalLeading = 0;
2412         if ( width )
2413             *width = FixedToInt(textAfter - textBefore);
2414
2415         ::ATSUDisposeTextLayout(atsuLayout);
2416
2417         return;
2418     }
2419 #endif
2420 #if wxOSX_USE_IPHONE
2421     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2422
2423     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2424     CGSize sz = MeasureTextInContext( fref->GetUIFont() , text.AsNSString() );
2425
2426     if ( height )
2427         *height = sz.height;
2428         /*
2429     if ( descent )
2430         *descent = FixedToInt(textDescent);
2431     if ( externalLeading )
2432         *externalLeading = 0;
2433         */
2434     if ( width )
2435         *width = sz.width;
2436 #endif
2437 }
2438
2439 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2440 {
2441     widths.Empty();
2442     widths.Add(0, text.length());
2443
2444     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2445
2446     if (text.empty())
2447         return;
2448
2449 #if wxOSX_USE_CORE_TEXT
2450     {
2451         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2452         CTFontRef font = fref->OSXGetCTFont();
2453
2454         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2455         CFStringRef keys[] = { kCTFontAttributeName  };
2456         CFTypeRef values[] = { font };
2457         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2458                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2459         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2460         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2461
2462         int chars = text.length();
2463         for ( int pos = 0; pos < (int)chars; pos ++ )
2464         {
2465             widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL );
2466         }
2467
2468         return;
2469     }
2470 #endif
2471 #if wxOSX_USE_ATSU_TEXT
2472     {
2473         OSStatus status = noErr;
2474         ATSUTextLayout atsuLayout;
2475         wxMacUniCharBuffer unibuf( text );
2476         UniCharCount chars = unibuf.GetChars();
2477
2478         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2479         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2480                                           &chars , &style , &atsuLayout );
2481
2482         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2483
2484         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2485         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2486
2487 // new implementation from JS, keep old one just in case
2488 #if 0
2489         for ( int pos = 0; pos < (int)chars; pos ++ )
2490         {
2491             unsigned long actualNumberOfBounds = 0;
2492             ATSTrapezoid glyphBounds;
2493
2494             // We get a single bound, since the text should only require one. If it requires more, there is an issue
2495             OSStatus result;
2496             result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2497                                         kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2498             if (result != noErr || actualNumberOfBounds != 1 )
2499                 return;
2500
2501             widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2502             //unsigned char uch = s[i];
2503         }
2504 #else
2505         ATSLayoutRecord *layoutRecords = NULL;
2506         ItemCount glyphCount = 0;
2507
2508         // Get the glyph extents
2509         OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2510                                                                        0,
2511                                                                        kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2512                                                                        (void **)
2513                                                                        &layoutRecords,
2514                                                                        &glyphCount);
2515         wxASSERT(glyphCount == (text.length()+1));
2516
2517         if ( err == noErr && glyphCount == (text.length()+1))
2518         {
2519             for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2520             {
2521                 widths[pos-1] = FixedToInt( layoutRecords[pos].realPos );
2522             }
2523         }
2524
2525         ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2526                                               kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2527                                               (void **) &layoutRecords);
2528 #endif
2529         ::ATSUDisposeTextLayout(atsuLayout);
2530     }
2531 #endif
2532 #if wxOSX_USE_IPHONE
2533     // TODO core graphics text implementation here
2534 #endif
2535 }
2536
2537 void * wxMacCoreGraphicsContext::GetNativeContext()
2538 {
2539     return m_cgContext;
2540 }
2541
2542 // concatenates this transform with the current transform of this context
2543 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2544 {
2545     if ( m_cgContext )
2546         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2547     else
2548         m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
2549 }
2550
2551 // sets the transform of this context
2552 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2553 {
2554     if ( m_cgContext )
2555     {
2556         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2557         transform = CGAffineTransformInvert( transform ) ;
2558         CGContextConcatCTM( m_cgContext, transform);
2559         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2560     }
2561     else
2562     {
2563         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2564     }
2565 }
2566
2567 // gets the matrix of this context
2568 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2569 {
2570     wxGraphicsMatrix m = CreateMatrix();
2571     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2572         CGContextGetCTM( m_cgContext ));
2573     return m;
2574 }
2575
2576 //
2577 // Renderer
2578 //
2579
2580 //-----------------------------------------------------------------------------
2581 // wxMacCoreGraphicsRenderer declaration
2582 //-----------------------------------------------------------------------------
2583
2584 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2585 {
2586 public :
2587     wxMacCoreGraphicsRenderer() {}
2588
2589     virtual ~wxMacCoreGraphicsRenderer() {}
2590
2591     // Context
2592
2593     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2594     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2595 #if wxUSE_PRINTING_ARCHITECTURE
2596     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2597 #endif
2598
2599     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2600
2601     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2602
2603     virtual wxGraphicsContext * CreateContext( wxWindow* window );
2604
2605     virtual wxGraphicsContext * CreateMeasuringContext();
2606
2607     // Path
2608
2609     virtual wxGraphicsPath CreatePath();
2610
2611     // Matrix
2612
2613     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2614         wxDouble tx=0.0, wxDouble ty=0.0);
2615
2616
2617     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2618
2619     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2620
2621     // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2622     virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2623         const wxColour&c1, const wxColour&c2) ;
2624
2625     // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2626     // with radius r and color cColor
2627     virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2628         const wxColour &oColor, const wxColour &cColor) ;
2629
2630    // sets the font
2631     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2632
2633     // create a native bitmap representation
2634     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2635
2636     // create a graphics bitmap from a native bitmap
2637     virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
2638
2639     // create a native bitmap representation
2640     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
2641 private :
2642     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2643 } ;
2644
2645 //-----------------------------------------------------------------------------
2646 // wxMacCoreGraphicsRenderer implementation
2647 //-----------------------------------------------------------------------------
2648
2649 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2650
2651 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2652
2653 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2654 {
2655     return &gs_MacCoreGraphicsRenderer;
2656 }
2657
2658 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2659 {
2660     const wxDCImpl* impl = dc.GetImpl();
2661     wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2662     if (win_impl)
2663     {
2664         int w, h;
2665         win_impl->GetSize( &w, &h );
2666         CGContextRef cgctx = 0;
2667
2668         wxASSERT_MSG(win_impl->GetWindow(), "Invalid wxWindow in wxMacCoreGraphicsRenderer::CreateContext");
2669         if (win_impl->GetWindow())
2670             cgctx =  (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2671
2672         if (cgctx != 0)
2673             return new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2674     }
2675     return NULL;
2676 }
2677
2678 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2679 {
2680 #ifdef __WXMAC__
2681     const wxDCImpl* impl = dc.GetImpl();
2682     wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2683     if (mem_impl)
2684     {
2685         int w, h;
2686         mem_impl->GetSize( &w, &h );
2687         return new wxMacCoreGraphicsContext( this,
2688             (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2689     }
2690 #endif
2691     return NULL;
2692 }
2693
2694 #if wxUSE_PRINTING_ARCHITECTURE
2695 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2696 {
2697 #ifdef __WXMAC__
2698     const wxDCImpl* impl = dc.GetImpl();
2699     wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2700     if (print_impl)
2701     {
2702         int w, h;
2703         print_impl->GetSize( &w, &h );
2704         return new wxMacCoreGraphicsContext( this,
2705             (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2706     }
2707 #endif
2708     return NULL;
2709 }
2710 #endif
2711
2712 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2713 {
2714     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2715 }
2716
2717 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2718 {
2719 #if wxOSX_USE_CARBON
2720     return new wxMacCoreGraphicsContext(this,(WindowRef)window);
2721 #else
2722     wxUnusedVar(window);
2723     return NULL;
2724 #endif
2725 }
2726
2727 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
2728 {
2729     return new wxMacCoreGraphicsContext(this, window );
2730 }
2731
2732 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
2733 {
2734     return new wxMacCoreGraphicsContext(this);
2735 }
2736
2737 // Path
2738
2739 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
2740 {
2741     wxGraphicsPath m;
2742     m.SetRefData( new wxMacCoreGraphicsPathData(this));
2743     return m;
2744 }
2745
2746
2747 // Matrix
2748
2749 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
2750     wxDouble tx, wxDouble ty)
2751 {
2752     wxGraphicsMatrix m;
2753     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
2754     data->Set( a,b,c,d,tx,ty ) ;
2755     m.SetRefData(data);
2756     return m;
2757 }
2758
2759 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
2760 {
2761     if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
2762         return wxNullGraphicsPen;
2763     else
2764     {
2765         wxGraphicsPen p;
2766         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
2767         return p;
2768     }
2769 }
2770
2771 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
2772 {
2773     if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
2774         return wxNullGraphicsBrush;
2775     else
2776     {
2777         wxGraphicsBrush p;
2778         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
2779         return p;
2780     }
2781 }
2782
2783 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
2784 {
2785     if ( bmp.Ok() )
2786     {
2787         wxGraphicsBitmap p;
2788         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
2789         return p;
2790     }
2791     else
2792         return wxNullGraphicsBitmap;
2793 }
2794
2795 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmapFromNativeBitmap( void* bitmap )
2796 {
2797     if ( bitmap != NULL )
2798     {
2799         wxGraphicsBitmap p;
2800         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , (CGImageRef) bitmap, false ));
2801         return p;
2802     }
2803     else
2804         return wxNullGraphicsBitmap;
2805 }
2806
2807 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
2808 {
2809     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2810     CGImageRef img = refdata->GetBitmap();
2811     if ( img )
2812     {
2813         wxGraphicsBitmap p;
2814         CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h ));
2815         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg, refdata->IsMonochrome() ) );
2816         return p;
2817     }
2818     else
2819         return wxNullGraphicsBitmap;
2820 }
2821
2822 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2823 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2824     const wxColour&c1, const wxColour&c2)
2825 {
2826     wxGraphicsBrush p;
2827     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2828     d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
2829     p.SetRefData(d);
2830     return p;
2831 }
2832
2833 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2834 // with radius r and color cColor
2835 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2836     const wxColour &oColor, const wxColour &cColor)
2837 {
2838     wxGraphicsBrush p;
2839     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2840     d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
2841     p.SetRefData(d);
2842     return p;
2843 }
2844
2845 // sets the font
2846 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
2847 {
2848     if ( font.Ok() )
2849     {
2850         wxGraphicsFont p;
2851         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
2852         return p;
2853     }
2854     else
2855         return wxNullGraphicsFont;
2856 }
2857
2858 //
2859 // CoreGraphics Helper Methods
2860 //
2861
2862 // Data Providers and Consumers
2863
2864 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
2865 {
2866     CFMutableDataRef data = (CFMutableDataRef) info;
2867     if ( data )
2868     {
2869         CFDataAppendBytes( data, (const UInt8*) bytes, count );
2870     }
2871     return count;
2872 }
2873
2874 void wxMacReleaseCFDataProviderCallback(void *info,
2875                                       const void *WXUNUSED(data),
2876                                       size_t WXUNUSED(count))
2877 {
2878     if ( info )
2879         CFRelease( (CFDataRef) info );
2880 }
2881
2882 void wxMacReleaseCFDataConsumerCallback( void *info )
2883 {
2884     if ( info )
2885         CFRelease( (CFDataRef) info );
2886 }
2887
2888 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
2889 {
2890     if ( data == NULL )
2891         return NULL;
2892
2893     return CGDataProviderCreateWithCFData( data );
2894 }
2895
2896 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
2897 {
2898     if ( data == NULL )
2899         return NULL;
2900
2901     return CGDataConsumerCreateWithCFData( data );
2902 }
2903
2904 void
2905 wxMacReleaseMemoryBufferProviderCallback(void *info,
2906                                          const void * WXUNUSED_UNLESS_DEBUG(data),
2907                                          size_t WXUNUSED(size))
2908 {
2909     wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
2910
2911     wxASSERT( data == membuf->GetData() ) ;
2912
2913     delete membuf ;
2914 }
2915
2916 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
2917 {
2918     wxMemoryBuffer* b = new wxMemoryBuffer( buf );
2919     if ( b->GetDataLen() == 0 )
2920         return NULL;
2921
2922     return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
2923                                                  wxMacReleaseMemoryBufferProviderCallback );
2924 }