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 an ellipsis as a new closed subpath fitting the passed rectangle
1142     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1143
1144     // 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)
1145     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1146
1147     // adds another path
1148     virtual void AddPath( const wxGraphicsPathData* path );
1149
1150     // returns the native path
1151     virtual void * GetNativePath() const { return m_path; }
1152
1153     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1154     virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1155
1156     // transforms each point of this path by the matrix
1157     virtual void Transform( const wxGraphicsMatrixData* matrix );
1158
1159     // gets the bounding box enclosing all points (possibly including control points)
1160     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
1161
1162     virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
1163 private :
1164     CGMutablePathRef m_path;
1165 };
1166
1167 //-----------------------------------------------------------------------------
1168 // wxMacCoreGraphicsPath implementation
1169 //-----------------------------------------------------------------------------
1170
1171 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1172 {
1173     if ( path )
1174         m_path = path;
1175     else
1176         m_path = CGPathCreateMutable();
1177 }
1178
1179 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1180 {
1181     CGPathRelease( m_path );
1182 }
1183
1184 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1185 {
1186     wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1187     return clone ;
1188 }
1189
1190
1191 // opens (starts) a new subpath
1192 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1193 {
1194     CGPathMoveToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1195 }
1196
1197 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1198 {
1199     CGPathAddLineToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1200 }
1201
1202 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1203 {
1204     CGPathAddCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) cx2, (CGFloat) cy2, (CGFloat) x , (CGFloat) y );
1205 }
1206
1207 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1208 {
1209     CGPathAddQuadCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) x , (CGFloat) y );
1210 }
1211
1212 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1213 {
1214     CGRect cgRect = { { (CGFloat) x , (CGFloat) y } , { (CGFloat) w , (CGFloat) h } };
1215     CGPathAddRect( m_path , NULL , cgRect );
1216 }
1217
1218 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1219 {
1220     CGPathAddArc( m_path , NULL , (CGFloat) x , (CGFloat) y , (CGFloat) r , (CGFloat) 0.0 , (CGFloat) (2 * M_PI) , true );
1221 }
1222
1223 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1224 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1225 {
1226     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1227     CGPathAddArc( m_path, NULL , (CGFloat) x, (CGFloat) y, (CGFloat) r, (CGFloat) startAngle, (CGFloat) endAngle, !clockwise);
1228 }
1229
1230 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1231 {
1232     CGPathAddArcToPoint( m_path, NULL , (CGFloat) x1, (CGFloat) y1, (CGFloat) x2, (CGFloat) y2, (CGFloat) r);
1233 }
1234
1235 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1236 {
1237     CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1238 }
1239
1240 // closes the current subpath
1241 void wxMacCoreGraphicsPathData::CloseSubpath()
1242 {
1243     CGPathCloseSubpath( m_path );
1244 }
1245
1246 // gets the last point of the current path, (0,0) if not yet set
1247 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1248 {
1249     CGPoint p = CGPathGetCurrentPoint( m_path );
1250     *x = p.x;
1251     *y = p.y;
1252 }
1253
1254 // transforms each point of this path by the matrix
1255 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1256 {
1257     CGMutablePathRef p = CGPathCreateMutable() ;
1258     CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1259     CGPathRelease( m_path );
1260     m_path = p;
1261 }
1262
1263 // gets the bounding box enclosing all points (possibly including control points)
1264 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1265 {
1266     CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1267     *x = bounds.origin.x;
1268     *y = bounds.origin.y;
1269     *w = bounds.size.width;
1270     *h = bounds.size.height;
1271 }
1272
1273 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle) const
1274 {
1275     return CGPathContainsPoint( m_path, NULL, CGPointMake((CGFloat) x,(CGFloat) y), fillStyle == wxODDEVEN_RULE );
1276 }
1277
1278 //
1279 // Graphics Context
1280 //
1281
1282 //-----------------------------------------------------------------------------
1283 // wxMacCoreGraphicsContext declaration
1284 //-----------------------------------------------------------------------------
1285
1286 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1287 {
1288 public:
1289     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1290
1291 #if wxOSX_USE_CARBON
1292     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1293 #endif
1294
1295     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1296
1297     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1298
1299     wxMacCoreGraphicsContext();
1300
1301     ~wxMacCoreGraphicsContext();
1302
1303     void Init();
1304
1305     // returns the size of the graphics context in device coordinates
1306     virtual void GetSize( wxDouble* width, wxDouble* height);
1307
1308     virtual void StartPage( wxDouble width, wxDouble height );
1309
1310     virtual void EndPage();
1311
1312     virtual void Flush();
1313
1314     // push the current state of the context, ie the transformation matrix on a stack
1315     virtual void PushState();
1316
1317     // pops a stored state from the stack
1318     virtual void PopState();
1319
1320     // clips drawings to the region
1321     virtual void Clip( const wxRegion &region );
1322
1323     // clips drawings to the rect
1324     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1325
1326     // resets the clipping to original extent
1327     virtual void ResetClip();
1328
1329     virtual void * GetNativeContext();
1330
1331     virtual bool SetAntialiasMode(wxAntialiasMode antialias);
1332
1333     virtual bool SetCompositionMode(wxCompositionMode op);
1334
1335     virtual void BeginLayer(wxDouble opacity);
1336
1337     virtual void EndLayer();
1338
1339     //
1340     // transformation
1341     //
1342
1343     // translate
1344     virtual void Translate( wxDouble dx , wxDouble dy );
1345
1346     // scale
1347     virtual void Scale( wxDouble xScale , wxDouble yScale );
1348
1349     // rotate (radians)
1350     virtual void Rotate( wxDouble angle );
1351
1352     // concatenates this transform with the current transform of this context
1353     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1354
1355     // sets the transform of this context
1356     virtual void SetTransform( const wxGraphicsMatrix& matrix );
1357
1358     // gets the matrix of this context
1359     virtual wxGraphicsMatrix GetTransform() const;
1360     //
1361     // setting the paint
1362     //
1363
1364     // strokes along a path with the current pen
1365     virtual void StrokePath( const wxGraphicsPath &path );
1366
1367     // fills a path with the current brush
1368     virtual void FillPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1369
1370     // draws a path by first filling and then stroking
1371     virtual void DrawPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1372
1373     virtual bool ShouldOffset() const
1374     {
1375         int penwidth = 0 ;
1376         if ( !m_pen.IsNull() )
1377         {
1378             penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1379             if ( penwidth == 0 )
1380                 penwidth = 1;
1381         }
1382         return ( penwidth % 2 ) == 1;
1383     }
1384     //
1385     // text
1386     //
1387
1388     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1389         wxDouble *descent, wxDouble *externalLeading ) const;
1390
1391     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1392
1393     //
1394     // image support
1395     //
1396
1397     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1398
1399     virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1400
1401     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1402
1403     void SetNativeContext( CGContextRef cg );
1404
1405     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsContext)
1406
1407 private:
1408     bool EnsureIsValid();
1409
1410     virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
1411     virtual void DoDrawRotatedText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1412
1413     CGContextRef m_cgContext;
1414 #if wxOSX_USE_CARBON
1415     WindowRef m_windowRef;
1416 #else
1417     WXWidget m_view;
1418 #endif
1419     bool m_contextSynthesized;
1420     CGAffineTransform m_windowTransform;
1421     wxDouble m_width;
1422     wxDouble m_height;
1423     bool m_invisible;
1424
1425 #if wxOSX_USE_COCOA_OR_CARBON
1426     wxCFRef<HIShapeRef> m_clipRgn;
1427 #endif
1428 };
1429
1430 //-----------------------------------------------------------------------------
1431 // device context implementation
1432 //
1433 // more and more of the dc functionality should be implemented by calling
1434 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1435 // also coordinate conversions should be moved to native matrix ops
1436 //-----------------------------------------------------------------------------
1437
1438 // we always stock two context states, one at entry, to be able to preserve the
1439 // state we were called with, the other one after changing to HI Graphics orientation
1440 // (this one is used for getting back clippings etc)
1441
1442 //-----------------------------------------------------------------------------
1443 // wxMacCoreGraphicsContext implementation
1444 //-----------------------------------------------------------------------------
1445
1446 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1447
1448 class wxQuartzOffsetHelper
1449 {
1450 public :
1451     wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1452     {
1453         m_cg = cg;
1454         m_offset = offset;
1455         if ( m_offset )
1456             CGContextTranslateCTM( m_cg, (CGFloat) 0.5, (CGFloat) 0.5 );
1457     }
1458     ~wxQuartzOffsetHelper( )
1459     {
1460         if ( m_offset )
1461             CGContextTranslateCTM( m_cg, (CGFloat) -0.5, (CGFloat) -0.5 );
1462     }
1463 public :
1464     CGContextRef m_cg;
1465     bool m_offset;
1466 } ;
1467
1468 void wxMacCoreGraphicsContext::Init()
1469 {
1470     m_cgContext = NULL;
1471     m_contextSynthesized = false;
1472     m_width = 0;
1473     m_height = 0;
1474 #if wxOSX_USE_CARBON
1475     m_windowRef = NULL;
1476 #endif
1477 #if wxOSX_USE_COCOA_OR_IPHONE
1478     m_view = NULL;
1479 #endif
1480     m_invisible = false;
1481 }
1482
1483 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer)
1484 {
1485     Init();
1486     SetNativeContext(cgcontext);
1487     m_width = width;
1488     m_height = height;
1489 }
1490
1491 #if wxOSX_USE_CARBON
1492 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1493 {
1494     Init();
1495     m_windowRef = window;
1496 }
1497 #endif
1498
1499 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1500 {
1501     Init();
1502
1503     wxSize sz = window->GetSize();
1504     m_width = sz.x;
1505     m_height = sz.y;
1506
1507 #if wxOSX_USE_COCOA_OR_IPHONE
1508     m_view = window->GetHandle();
1509
1510 #if wxOSX_USE_COCOA
1511     if ( ! window->GetPeer()->IsFlipped() )
1512     {
1513         m_windowTransform = CGAffineTransformMakeTranslation( 0 , m_height );
1514         m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1515     }
1516     else
1517 #endif
1518     {
1519         m_windowTransform = CGAffineTransformIdentity;
1520     }
1521 #else
1522     int originX , originY;
1523     originX = originY = 0;
1524     Rect bounds = { 0,0,0,0 };
1525     m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1526     window->MacWindowToRootWindow( &originX , &originY );
1527     GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1528     m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1529     m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1530     m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1531 #endif
1532 }
1533
1534 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1535 {
1536     Init();
1537 }
1538
1539 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1540 {
1541     Init();
1542     wxLogDebug(wxT("Illegal Constructor called"));
1543 }
1544
1545 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1546 {
1547     SetNativeContext(NULL);
1548 }
1549
1550 void wxMacCoreGraphicsContext::GetSize( wxDouble* width, wxDouble* height)
1551 {
1552     *width = m_width;
1553     *height = m_height;
1554 }
1555
1556
1557 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1558 {
1559     CGRect r;
1560     if ( width != 0 && height != 0)
1561         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) width  , (CGFloat) height );
1562     else
1563         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) m_width  , (CGFloat) m_height );
1564
1565     CGContextBeginPage(m_cgContext,  &r );
1566 //    CGContextTranslateCTM( m_cgContext , 0 ,  height == 0 ? m_height : height );
1567 //    CGContextScaleCTM( m_cgContext , 1 , -1 );
1568 }
1569
1570 void wxMacCoreGraphicsContext::EndPage()
1571 {
1572     CGContextEndPage(m_cgContext);
1573 }
1574
1575 void wxMacCoreGraphicsContext::Flush()
1576 {
1577     CGContextFlush(m_cgContext);
1578 }
1579
1580 bool wxMacCoreGraphicsContext::EnsureIsValid()
1581 {
1582     if ( !m_cgContext )
1583     {
1584         if (m_invisible)
1585             return false;
1586
1587 #if wxOSX_USE_COCOA
1588         if ( wxOSXLockFocus(m_view) )
1589         {
1590             m_cgContext = wxOSXGetContextFromCurrentContext();
1591             wxASSERT_MSG( m_cgContext != NULL, wxT("Unable to retrieve drawing context from View"));
1592         }
1593         else
1594         {
1595             m_invisible = true;
1596         }
1597 #endif
1598 #if wxOSX_USE_IPHONE
1599         m_cgContext = wxOSXGetContextFromCurrentContext();
1600         if ( m_cgContext == NULL )
1601         {
1602             m_invisible = true;
1603         }
1604 #endif
1605 #if wxOSX_USE_CARBON
1606         OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1607         if ( status != noErr )
1608         {
1609             wxFAIL_MSG("Cannot nest wxDCs on the same window");
1610         }
1611 #endif
1612         if ( m_cgContext )
1613         {
1614             CGContextSaveGState( m_cgContext );
1615             CGContextConcatCTM( m_cgContext, m_windowTransform );
1616             CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
1617             m_contextSynthesized = true;
1618 #if wxOSX_USE_COCOA_OR_CARBON
1619             if ( m_clipRgn.get() )
1620             {
1621                 // the clip region is in device coordinates, so we convert this again to user coordinates
1622                 wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1623                 CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero,m_windowTransform);
1624                 HIShapeOffset( hishape, -transformedOrigin.x, -transformedOrigin.y );
1625                 // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1626                 if ( HIShapeIsEmpty(hishape))
1627                 {
1628                     CGRect empty = CGRectMake( 0,0,0,0 );
1629                     CGContextClipToRect( m_cgContext, empty );
1630                 }
1631                 else
1632                 {
1633                     HIShapeReplacePathInCGContext( hishape, m_cgContext );
1634                     CGContextClip( m_cgContext );
1635                 }
1636             }
1637 #endif
1638             CGContextSaveGState( m_cgContext );
1639
1640 #if 0 // turn on for debugging of clientdc
1641             static float color = 0.5 ;
1642             static int channel = 0 ;
1643             CGRect bounds = CGRectMake(-1000,-1000,2000,2000);
1644             CGContextSetRGBFillColor( m_cgContext, channel == 0 ? color : 0.5 ,
1645                 channel == 1 ? color : 0.5 , channel == 2 ? color : 0.5 , 1 );
1646             CGContextFillRect( m_cgContext, bounds );
1647             color += 0.1 ;
1648             if ( color > 0.9 )
1649             {
1650                 color = 0.5 ;
1651                 channel++ ;
1652                 if ( channel == 3 )
1653                     channel = 0 ;
1654             }
1655 #endif
1656         }
1657     }
1658     return m_cgContext != NULL;
1659 }
1660
1661 bool wxMacCoreGraphicsContext::SetAntialiasMode(wxAntialiasMode antialias)
1662 {
1663     if (!EnsureIsValid())
1664         return true;
1665
1666     if (m_antialias == antialias)
1667         return true;
1668
1669     m_antialias = antialias;
1670
1671     bool antialiasMode;
1672     switch (antialias)
1673     {
1674         case wxANTIALIAS_DEFAULT:
1675             antialiasMode = true;
1676             break;
1677         case wxANTIALIAS_NONE:
1678             antialiasMode = false;
1679             break;
1680         default:
1681             return false;
1682     }
1683     CGContextSetShouldAntialias(m_cgContext, antialiasMode);
1684     return true;
1685 }
1686
1687 bool wxMacCoreGraphicsContext::SetCompositionMode(wxCompositionMode op)
1688 {
1689     if (!EnsureIsValid())
1690         return true;
1691
1692     if ( m_composition == op )
1693         return true;
1694
1695     m_composition = op;
1696
1697     if (m_composition == wxCOMPOSITION_DEST)
1698         return true;
1699
1700 #if wxOSX_USE_COCOA_OR_CARBON
1701     if ( UMAGetSystemVersion() < 0x1060 )
1702     {
1703         CGCompositeOperation cop = kCGCompositeOperationSourceOver;
1704         CGBlendMode mode = kCGBlendModeNormal;
1705         switch( op )
1706         {
1707         case wxCOMPOSITION_CLEAR:
1708             cop = kCGCompositeOperationClear;
1709             break;
1710         case wxCOMPOSITION_SOURCE:
1711             cop = kCGCompositeOperationCopy;
1712             break;
1713         case wxCOMPOSITION_OVER:
1714             mode = kCGBlendModeNormal;
1715             break;
1716         case wxCOMPOSITION_IN:
1717             cop = kCGCompositeOperationSourceIn;
1718             break;
1719         case wxCOMPOSITION_OUT:
1720             cop = kCGCompositeOperationSourceOut;
1721             break;
1722         case wxCOMPOSITION_ATOP:
1723             cop = kCGCompositeOperationSourceAtop;
1724             break;
1725         case wxCOMPOSITION_DEST_OVER:
1726             cop = kCGCompositeOperationDestinationOver;
1727             break;
1728         case wxCOMPOSITION_DEST_IN:
1729             cop = kCGCompositeOperationDestinationIn;
1730             break;
1731         case wxCOMPOSITION_DEST_OUT:
1732             cop = kCGCompositeOperationDestinationOut;
1733             break;
1734         case wxCOMPOSITION_DEST_ATOP:
1735            cop = kCGCompositeOperationDestinationAtop;
1736             break;
1737         case wxCOMPOSITION_XOR:
1738             cop = kCGCompositeOperationXOR;
1739             break;
1740 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1741         case wxCOMPOSITION_ADD:
1742             mode = kCGBlendModePlusLighter ;
1743             break;
1744 #endif
1745         default:
1746             return false;
1747         }
1748         if ( cop != kCGCompositeOperationSourceOver )
1749             CGContextSetCompositeOperation(m_cgContext, cop);
1750         else
1751             CGContextSetBlendMode(m_cgContext, mode);
1752     }
1753 #endif
1754 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1755     else
1756     {
1757         CGBlendMode mode = kCGBlendModeNormal;
1758         switch( op )
1759         {
1760         case wxCOMPOSITION_CLEAR:
1761             mode = kCGBlendModeClear;
1762             break;
1763         case wxCOMPOSITION_SOURCE:
1764             mode = kCGBlendModeCopy;
1765             break;
1766         case wxCOMPOSITION_OVER:
1767             mode = kCGBlendModeNormal;
1768             break;
1769         case wxCOMPOSITION_IN:
1770             mode = kCGBlendModeSourceIn;
1771             break;
1772         case wxCOMPOSITION_OUT:
1773             mode = kCGBlendModeSourceOut;
1774             break;
1775         case wxCOMPOSITION_ATOP:
1776             mode = kCGBlendModeSourceAtop;
1777             break;
1778         case wxCOMPOSITION_DEST_OVER:
1779             mode = kCGBlendModeDestinationOver;
1780             break;
1781         case wxCOMPOSITION_DEST_IN:
1782             mode = kCGBlendModeDestinationIn;
1783             break;
1784         case wxCOMPOSITION_DEST_OUT:
1785             mode = kCGBlendModeDestinationOut;
1786             break;
1787         case wxCOMPOSITION_DEST_ATOP:
1788            mode = kCGBlendModeDestinationAtop;
1789             break;
1790         case wxCOMPOSITION_XOR:
1791             mode = kCGBlendModeXOR;
1792             break;
1793
1794         case wxCOMPOSITION_ADD:
1795             mode = kCGBlendModePlusLighter ;
1796             break;
1797         default:
1798             return false;
1799         }
1800         CGContextSetBlendMode(m_cgContext, mode);
1801     }
1802 #endif
1803     return true;
1804 }
1805
1806 void wxMacCoreGraphicsContext::BeginLayer(wxDouble opacity)
1807 {
1808     CGContextSaveGState(m_cgContext);
1809     CGContextSetAlpha(m_cgContext, (CGFloat) opacity);
1810     CGContextBeginTransparencyLayer(m_cgContext, 0);
1811 }
1812
1813 void wxMacCoreGraphicsContext::EndLayer()
1814 {
1815     CGContextEndTransparencyLayer(m_cgContext);
1816     CGContextRestoreGState(m_cgContext);
1817 }
1818
1819 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1820 {
1821 #if wxOSX_USE_COCOA_OR_CARBON
1822     if( m_cgContext )
1823     {
1824         wxCFRef<HIShapeRef> shape = wxCFRefFromGet(region.GetWXHRGN());
1825         // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1826         if ( HIShapeIsEmpty(shape))
1827         {
1828             CGRect empty = CGRectMake( 0,0,0,0 );
1829             CGContextClipToRect( m_cgContext, empty );
1830         }
1831         else
1832         {
1833             HIShapeReplacePathInCGContext( shape, m_cgContext );
1834             CGContextClip( m_cgContext );
1835         }
1836     }
1837     else
1838     {
1839         // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1840         // to regions we try at least to have correct translations
1841         HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1842
1843         CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1844         HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1845         m_clipRgn.reset(mutableShape);
1846     }
1847 #else
1848     // allow usage as measuring context
1849     // wxASSERT_MSG( m_cgContext != NULL, "Needs a valid context for clipping" );
1850 #endif
1851 }
1852
1853 // clips drawings to the rect
1854 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1855 {
1856     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1857     if ( m_cgContext )
1858     {
1859         CGContextClipToRect( m_cgContext, r );
1860     }
1861     else
1862     {
1863 #if wxOSX_USE_COCOA_OR_CARBON
1864         // the clipping itself must be stored as device coordinates, otherwise
1865         // we cannot apply it back correctly
1866         r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
1867         m_clipRgn.reset(HIShapeCreateWithRect(&r));
1868 #else
1869     // allow usage as measuring context
1870     // wxFAIL_MSG( "Needs a valid context for clipping" );
1871 #endif
1872     }
1873 }
1874
1875     // resets the clipping to original extent
1876 void wxMacCoreGraphicsContext::ResetClip()
1877 {
1878     if ( m_cgContext )
1879     {
1880         // there is no way for clearing the clip, we can only revert to the stored
1881         // state, but then we have to make sure everything else is NOT restored
1882         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1883         CGContextRestoreGState( m_cgContext );
1884         CGContextSaveGState( m_cgContext );
1885         CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
1886         transformNew = CGAffineTransformInvert( transformNew ) ;
1887         CGContextConcatCTM( m_cgContext, transformNew);
1888         CGContextConcatCTM( m_cgContext, transform);
1889     }
1890     else
1891     {
1892 #if wxOSX_USE_COCOA_OR_CARBON
1893         m_clipRgn.reset();
1894 #else
1895     // allow usage as measuring context
1896     // wxFAIL_MSG( "Needs a valid context for clipping" );
1897 #endif
1898     }
1899 }
1900
1901 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1902 {
1903     if ( m_pen.IsNull() )
1904         return ;
1905
1906     if (!EnsureIsValid())
1907         return;
1908
1909     if (m_composition == wxCOMPOSITION_DEST)
1910         return;
1911
1912     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1913
1914     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1915     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1916     CGContextStrokePath( m_cgContext );
1917 }
1918
1919 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1920 {
1921     if (!EnsureIsValid())
1922         return;
1923
1924     if (m_composition == wxCOMPOSITION_DEST)
1925         return;
1926
1927     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1928     {
1929         // when using shading, we cannot draw pen and brush at the same time
1930         // revert to the base implementation of first filling and then stroking
1931         wxGraphicsContext::DrawPath( path, fillStyle );
1932         return;
1933     }
1934
1935     CGPathDrawingMode mode = kCGPathFill ;
1936     if ( m_brush.IsNull() )
1937     {
1938         if ( m_pen.IsNull() )
1939             return;
1940         else
1941             mode = kCGPathStroke;
1942     }
1943     else
1944     {
1945         if ( m_pen.IsNull() )
1946         {
1947             if ( fillStyle == wxODDEVEN_RULE )
1948                 mode = kCGPathEOFill;
1949             else
1950                 mode = kCGPathFill;
1951         }
1952         else
1953         {
1954             if ( fillStyle == wxODDEVEN_RULE )
1955                 mode = kCGPathEOFillStroke;
1956             else
1957                 mode = kCGPathFillStroke;
1958         }
1959     }
1960
1961     if ( !m_brush.IsNull() )
1962         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1963     if ( !m_pen.IsNull() )
1964         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1965
1966     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1967
1968     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1969     CGContextDrawPath( m_cgContext , mode );
1970 }
1971
1972 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1973 {
1974     if ( m_brush.IsNull() )
1975         return;
1976
1977     if (!EnsureIsValid())
1978         return;
1979
1980     if (m_composition == wxCOMPOSITION_DEST)
1981         return;
1982
1983     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1984     {
1985         CGContextSaveGState( m_cgContext );
1986         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1987         CGContextClip( m_cgContext );
1988         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1989         CGContextRestoreGState( m_cgContext);
1990     }
1991     else
1992     {
1993         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1994         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1995         if ( fillStyle == wxODDEVEN_RULE )
1996             CGContextEOFillPath( m_cgContext );
1997         else
1998             CGContextFillPath( m_cgContext );
1999     }
2000 }
2001
2002 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
2003 {
2004     // we allow either setting or clearing but not replacing
2005     wxASSERT( m_cgContext == NULL || cg == NULL );
2006
2007     if ( m_cgContext )
2008     {
2009         CGContextRestoreGState( m_cgContext );
2010         CGContextRestoreGState( m_cgContext );
2011         if ( m_contextSynthesized )
2012         {
2013             // TODO: in case of performance problems, try issuing this not too
2014             // frequently (half of refresh rate)
2015             CGContextFlush(m_cgContext);
2016 #if wxOSX_USE_CARBON
2017             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
2018 #endif
2019 #if wxOSX_USE_COCOA
2020             wxOSXUnlockFocus(m_view);
2021 #endif
2022         }
2023         else
2024             CGContextRelease(m_cgContext);
2025     }
2026
2027     m_cgContext = cg;
2028
2029     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
2030     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
2031     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
2032     // for this one operation.
2033
2034     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
2035     // can be removed.
2036     if (m_cgContext)
2037     {
2038         CGContextRetain(m_cgContext);
2039         CGContextSaveGState( m_cgContext );
2040         CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
2041         CGContextSaveGState( m_cgContext );
2042         m_contextSynthesized = false;
2043     }
2044 }
2045
2046 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
2047 {
2048     if ( m_cgContext )
2049         CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
2050     else
2051         m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
2052 }
2053
2054 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
2055 {
2056     if ( m_cgContext )
2057         CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
2058     else
2059         m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
2060 }
2061
2062 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
2063 {
2064     if ( m_cgContext )
2065         CGContextRotateCTM( m_cgContext , (CGFloat) angle );
2066     else
2067         m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
2068 }
2069
2070 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2071 {
2072     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
2073     DrawBitmap(bitmap, x, y, w, h);
2074 }
2075
2076 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2077 {
2078     if (!EnsureIsValid())
2079         return;
2080
2081     if (m_composition == wxCOMPOSITION_DEST)
2082         return;
2083
2084 #ifdef __WXMAC__
2085     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2086     CGImageRef image = refdata->GetBitmap();
2087     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2088     if ( refdata->IsMonochrome() == 1 )
2089     {
2090         // is is a mask, the '1' in the mask tell where to draw the current brush
2091         if (  !m_brush.IsNull() )
2092         {
2093             if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2094             {
2095                 // TODO clip to mask
2096             /*
2097                 CGContextSaveGState( m_cgContext );
2098                 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2099                 CGContextClip( m_cgContext );
2100                 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2101                 CGContextRestoreGState( m_cgContext);
2102             */
2103             }
2104             else
2105             {
2106                 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2107                 wxMacDrawCGImage( m_cgContext , &r , image );
2108             }
2109         }
2110     }
2111     else
2112     {
2113         wxMacDrawCGImage( m_cgContext , &r , image );
2114     }
2115 #endif
2116 }
2117
2118 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2119 {
2120     if (!EnsureIsValid())
2121         return;
2122
2123     if (m_composition == wxCOMPOSITION_DEST)
2124         return;
2125
2126     CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
2127     CGContextSaveGState( m_cgContext );
2128     CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
2129     CGContextScaleCTM( m_cgContext, 1, -1 );
2130 #if wxOSX_USE_COCOA_OR_CARBON
2131     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
2132         NULL , kPlotIconRefNormalFlags , icon.GetHICON() );
2133 #endif
2134     CGContextRestoreGState( m_cgContext );
2135 }
2136
2137 void wxMacCoreGraphicsContext::PushState()
2138 {
2139     if (!EnsureIsValid())
2140         return;
2141
2142     CGContextSaveGState( m_cgContext );
2143 }
2144
2145 void wxMacCoreGraphicsContext::PopState()
2146 {
2147     if (!EnsureIsValid())
2148         return;
2149
2150     CGContextRestoreGState( m_cgContext );
2151 }
2152
2153 void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDouble y )
2154 {
2155     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2156
2157     if (!EnsureIsValid())
2158         return;
2159
2160     if (m_composition == wxCOMPOSITION_DEST)
2161         return;
2162
2163 #if wxOSX_USE_CORE_TEXT
2164     if ( UMAGetSystemVersion() >= 0x1050 )
2165     {
2166         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2167         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2168         CTFontRef font = fref->OSXGetCTFont();
2169         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2170         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
2171         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
2172          CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
2173         CFTypeRef values[] = { font, col, underlined };
2174         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2175                                                         WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2176         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2177         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2178
2179         y += CTFontGetAscent(font);
2180
2181         CGContextSaveGState(m_cgContext);
2182         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2183         CGContextScaleCTM(m_cgContext, 1, -1);
2184         CGContextSetTextPosition(m_cgContext, 0, 0);
2185         CTLineDraw( line, m_cgContext );
2186         CGContextRestoreGState(m_cgContext);
2187         CFRelease( col );
2188         return;
2189     }
2190 #endif
2191 #if wxOSX_USE_ATSU_TEXT
2192     {
2193         DrawText(str, x, y, 0.0);
2194         return;
2195     }
2196 #endif
2197 #if wxOSX_USE_IPHONE
2198     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2199
2200     CGContextSaveGState(m_cgContext);
2201
2202     CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2203     CGContextSetTextDrawingMode (m_cgContext, kCGTextFill);
2204     CGContextSetFillColorWithColor( m_cgContext, col );
2205
2206     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2207     DrawTextInContext( m_cgContext, CGPointMake( x, y ), fref->GetUIFont() , text.AsNSString() );
2208
2209     CGContextRestoreGState(m_cgContext);
2210     CFRelease( col );
2211 #endif
2212 }
2213
2214 void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
2215                                                  wxDouble x, wxDouble y,
2216                                                  wxDouble angle)
2217 {
2218     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2219
2220     if (!EnsureIsValid())
2221         return;
2222
2223     if (m_composition == wxCOMPOSITION_DEST)
2224         return;
2225
2226 #if wxOSX_USE_CORE_TEXT
2227     if ( UMAGetSystemVersion() >= 0x1050 )
2228     {
2229         // default implementation takes care of rotation and calls non rotated DrawText afterwards
2230         wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2231         return;
2232     }
2233 #endif
2234 #if wxOSX_USE_ATSU_TEXT
2235     {
2236         OSStatus status = noErr;
2237         ATSUTextLayout atsuLayout;
2238         wxMacUniCharBuffer unibuf( str );
2239         UniCharCount chars = unibuf.GetChars();
2240
2241         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2242         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2243                                                    &chars , &style , &atsuLayout );
2244
2245         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
2246
2247         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2248         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2249
2250         int iAngle = int( angle * RAD2DEG );
2251         if ( abs(iAngle) > 0 )
2252         {
2253             Fixed atsuAngle = IntToFixed( iAngle );
2254             ATSUAttributeTag atsuTags[] =
2255             {
2256                 kATSULineRotationTag ,
2257             };
2258             ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2259             {
2260                 sizeof( Fixed ) ,
2261             };
2262             ATSUAttributeValuePtr    atsuValues[WXSIZEOF(atsuTags)] =
2263             {
2264                 &atsuAngle ,
2265             };
2266             status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2267                                              atsuTags, atsuSizes, atsuValues );
2268         }
2269
2270         {
2271             ATSUAttributeTag atsuTags[] =
2272             {
2273                 kATSUCGContextTag ,
2274             };
2275             ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2276             {
2277                 sizeof( CGContextRef ) ,
2278             };
2279             ATSUAttributeValuePtr    atsuValues[WXSIZEOF(atsuTags)] =
2280             {
2281                 &m_cgContext ,
2282             };
2283             status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2284                                              atsuTags, atsuSizes, atsuValues );
2285         }
2286
2287         ATSUTextMeasurement textBefore, textAfter;
2288         ATSUTextMeasurement ascent, descent;
2289
2290         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2291                                             &textBefore , &textAfter, &ascent , &descent );
2292
2293         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2294
2295         Rect rect;
2296         x += (int)(sin(angle) * FixedToInt(ascent));
2297         y += (int)(cos(angle) * FixedToInt(ascent));
2298
2299         status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2300                                         IntToFixed(x) , IntToFixed(y) , &rect );
2301         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2302
2303         CGContextSaveGState(m_cgContext);
2304         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2305         CGContextScaleCTM(m_cgContext, 1, -1);
2306         status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2307                                 IntToFixed(0) , IntToFixed(0) );
2308
2309         wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2310
2311         CGContextRestoreGState(m_cgContext);
2312
2313         ::ATSUDisposeTextLayout(atsuLayout);
2314
2315         return;
2316     }
2317 #endif
2318 #if wxOSX_USE_IPHONE
2319     // default implementation takes care of rotation and calls non rotated DrawText afterwards
2320     wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2321 #endif
2322 }
2323
2324 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2325                             wxDouble *descent, wxDouble *externalLeading ) const
2326 {
2327     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::GetTextExtent - no valid font set") );
2328
2329     if ( width )
2330         *width = 0;
2331     if ( height )
2332         *height = 0;
2333     if ( descent )
2334         *descent = 0;
2335     if ( externalLeading )
2336         *externalLeading = 0;
2337
2338     if (str.empty())
2339         return;
2340
2341 #if wxOSX_USE_CORE_TEXT
2342     if ( UMAGetSystemVersion() >= 0x1050 )
2343     {
2344         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2345         CTFontRef font = fref->OSXGetCTFont();
2346
2347         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2348         CFStringRef keys[] = { kCTFontAttributeName  };
2349         CFTypeRef values[] = { font };
2350         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2351                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2352         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2353         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2354
2355         double w;
2356         CGFloat a, d, l;
2357
2358         w = CTLineGetTypographicBounds(line, &a, &d, &l) ;
2359
2360         if ( height )
2361             *height = a+d+l;
2362         if ( descent )
2363             *descent = d;
2364         if ( externalLeading )
2365             *externalLeading = l;
2366         if ( width )
2367             *width = w;
2368         return;
2369     }
2370 #endif
2371 #if wxOSX_USE_ATSU_TEXT
2372     {
2373         OSStatus status = noErr;
2374
2375         ATSUTextLayout atsuLayout;
2376         wxMacUniCharBuffer unibuf( str );
2377         UniCharCount chars = unibuf.GetChars();
2378
2379         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2380         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2381                                                    &chars , &style , &atsuLayout );
2382
2383         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2384
2385         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2386         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2387
2388         ATSUTextMeasurement textBefore, textAfter;
2389         ATSUTextMeasurement textAscent, textDescent;
2390
2391         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2392                                             &textBefore , &textAfter, &textAscent , &textDescent );
2393
2394         if ( height )
2395             *height = FixedToInt(textAscent + textDescent);
2396         if ( descent )
2397             *descent = FixedToInt(textDescent);
2398         if ( externalLeading )
2399             *externalLeading = 0;
2400         if ( width )
2401             *width = FixedToInt(textAfter - textBefore);
2402
2403         ::ATSUDisposeTextLayout(atsuLayout);
2404
2405         return;
2406     }
2407 #endif
2408 #if wxOSX_USE_IPHONE
2409     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2410
2411     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2412     CGSize sz = MeasureTextInContext( fref->GetUIFont() , text.AsNSString() );
2413
2414     if ( height )
2415         *height = sz.height;
2416         /*
2417     if ( descent )
2418         *descent = FixedToInt(textDescent);
2419     if ( externalLeading )
2420         *externalLeading = 0;
2421         */
2422     if ( width )
2423         *width = sz.width;
2424 #endif
2425 }
2426
2427 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2428 {
2429     widths.Empty();
2430     widths.Add(0, text.length());
2431
2432     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2433
2434     if (text.empty())
2435         return;
2436
2437 #if wxOSX_USE_CORE_TEXT
2438     {
2439         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2440         CTFontRef font = fref->OSXGetCTFont();
2441
2442         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2443         CFStringRef keys[] = { kCTFontAttributeName  };
2444         CFTypeRef values[] = { font };
2445         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2446                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2447         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2448         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2449
2450         int chars = text.length();
2451         for ( int pos = 0; pos < (int)chars; pos ++ )
2452         {
2453             widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5;
2454         }
2455
2456         return;
2457     }
2458 #endif
2459 #if wxOSX_USE_ATSU_TEXT
2460     {
2461         OSStatus status = noErr;
2462         ATSUTextLayout atsuLayout;
2463         wxMacUniCharBuffer unibuf( text );
2464         UniCharCount chars = unibuf.GetChars();
2465
2466         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2467         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2468                                           &chars , &style , &atsuLayout );
2469
2470         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2471
2472         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2473         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2474
2475 // new implementation from JS, keep old one just in case
2476 #if 0
2477         for ( int pos = 0; pos < (int)chars; pos ++ )
2478         {
2479             unsigned long actualNumberOfBounds = 0;
2480             ATSTrapezoid glyphBounds;
2481
2482             // We get a single bound, since the text should only require one. If it requires more, there is an issue
2483             OSStatus result;
2484             result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2485                                         kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2486             if (result != noErr || actualNumberOfBounds != 1 )
2487                 return;
2488
2489             widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2490             //unsigned char uch = s[i];
2491         }
2492 #else
2493         ATSLayoutRecord *layoutRecords = NULL;
2494         ItemCount glyphCount = 0;
2495
2496         // Get the glyph extents
2497         OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2498                                                                        0,
2499                                                                        kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2500                                                                        (void **)
2501                                                                        &layoutRecords,
2502                                                                        &glyphCount);
2503         wxASSERT(glyphCount == (text.length()+1));
2504
2505         if ( err == noErr && glyphCount == (text.length()+1))
2506         {
2507             for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2508             {
2509                 widths[pos-1] = FixedToInt( layoutRecords[pos].realPos );
2510             }
2511         }
2512
2513         ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2514                                               kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2515                                               (void **) &layoutRecords);
2516 #endif
2517         ::ATSUDisposeTextLayout(atsuLayout);
2518     }
2519 #endif
2520 #if wxOSX_USE_IPHONE
2521     // TODO core graphics text implementation here
2522 #endif
2523 }
2524
2525 void * wxMacCoreGraphicsContext::GetNativeContext()
2526 {
2527     return m_cgContext;
2528 }
2529
2530 // concatenates this transform with the current transform of this context
2531 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2532 {
2533     if ( m_cgContext )
2534         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2535     else
2536         m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
2537 }
2538
2539 // sets the transform of this context
2540 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2541 {
2542     if ( m_cgContext )
2543     {
2544         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2545         transform = CGAffineTransformInvert( transform ) ;
2546         CGContextConcatCTM( m_cgContext, transform);
2547         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2548     }
2549     else
2550     {
2551         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2552     }
2553 }
2554
2555 // gets the matrix of this context
2556 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2557 {
2558     wxGraphicsMatrix m = CreateMatrix();
2559     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2560         CGContextGetCTM( m_cgContext ));
2561     return m;
2562 }
2563
2564 //
2565 // Renderer
2566 //
2567
2568 //-----------------------------------------------------------------------------
2569 // wxMacCoreGraphicsRenderer declaration
2570 //-----------------------------------------------------------------------------
2571
2572 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2573 {
2574 public :
2575     wxMacCoreGraphicsRenderer() {}
2576
2577     virtual ~wxMacCoreGraphicsRenderer() {}
2578
2579     // Context
2580
2581     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2582     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2583 #if wxUSE_PRINTING_ARCHITECTURE
2584     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2585 #endif
2586
2587     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2588
2589     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2590
2591     virtual wxGraphicsContext * CreateContext( wxWindow* window );
2592
2593     virtual wxGraphicsContext * CreateMeasuringContext();
2594
2595     // Path
2596
2597     virtual wxGraphicsPath CreatePath();
2598
2599     // Matrix
2600
2601     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2602         wxDouble tx=0.0, wxDouble ty=0.0);
2603
2604
2605     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2606
2607     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2608
2609     // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2610     virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2611         const wxColour&c1, const wxColour&c2) ;
2612
2613     // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2614     // with radius r and color cColor
2615     virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2616         const wxColour &oColor, const wxColour &cColor) ;
2617
2618    // sets the font
2619     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2620
2621     // create a native bitmap representation
2622     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2623
2624     // create a graphics bitmap from a native bitmap
2625     virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
2626
2627     // create a native bitmap representation
2628     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
2629 private :
2630     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2631 } ;
2632
2633 //-----------------------------------------------------------------------------
2634 // wxMacCoreGraphicsRenderer implementation
2635 //-----------------------------------------------------------------------------
2636
2637 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2638
2639 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2640
2641 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2642 {
2643     return &gs_MacCoreGraphicsRenderer;
2644 }
2645
2646 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2647 {
2648     const wxDCImpl* impl = dc.GetImpl();
2649     wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2650     if (win_impl)
2651     {
2652         int w, h;
2653         win_impl->GetSize( &w, &h );
2654         CGContextRef cgctx = 0;
2655
2656         wxASSERT_MSG(win_impl->GetWindow(), "Invalid wxWindow in wxMacCoreGraphicsRenderer::CreateContext");
2657         if (win_impl->GetWindow())
2658             cgctx =  (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2659
2660         if (cgctx != 0)
2661             return new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2662     }
2663     return NULL;
2664 }
2665
2666 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2667 {
2668 #ifdef __WXMAC__
2669     const wxDCImpl* impl = dc.GetImpl();
2670     wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2671     if (mem_impl)
2672     {
2673         int w, h;
2674         mem_impl->GetSize( &w, &h );
2675         return new wxMacCoreGraphicsContext( this,
2676             (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2677     }
2678 #endif
2679     return NULL;
2680 }
2681
2682 #if wxUSE_PRINTING_ARCHITECTURE
2683 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2684 {
2685 #ifdef __WXMAC__
2686     const wxDCImpl* impl = dc.GetImpl();
2687     wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2688     if (print_impl)
2689     {
2690         int w, h;
2691         print_impl->GetSize( &w, &h );
2692         return new wxMacCoreGraphicsContext( this,
2693             (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2694     }
2695 #endif
2696     return NULL;
2697 }
2698 #endif
2699
2700 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2701 {
2702     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2703 }
2704
2705 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2706 {
2707 #if wxOSX_USE_CARBON
2708     return new wxMacCoreGraphicsContext(this,(WindowRef)window);
2709 #else
2710     wxUnusedVar(window);
2711     return NULL;
2712 #endif
2713 }
2714
2715 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
2716 {
2717     return new wxMacCoreGraphicsContext(this, window );
2718 }
2719
2720 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
2721 {
2722     return new wxMacCoreGraphicsContext(this);
2723 }
2724
2725 // Path
2726
2727 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
2728 {
2729     wxGraphicsPath m;
2730     m.SetRefData( new wxMacCoreGraphicsPathData(this));
2731     return m;
2732 }
2733
2734
2735 // Matrix
2736
2737 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
2738     wxDouble tx, wxDouble ty)
2739 {
2740     wxGraphicsMatrix m;
2741     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
2742     data->Set( a,b,c,d,tx,ty ) ;
2743     m.SetRefData(data);
2744     return m;
2745 }
2746
2747 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
2748 {
2749     if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
2750         return wxNullGraphicsPen;
2751     else
2752     {
2753         wxGraphicsPen p;
2754         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
2755         return p;
2756     }
2757 }
2758
2759 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
2760 {
2761     if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
2762         return wxNullGraphicsBrush;
2763     else
2764     {
2765         wxGraphicsBrush p;
2766         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
2767         return p;
2768     }
2769 }
2770
2771 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
2772 {
2773     if ( bmp.Ok() )
2774     {
2775         wxGraphicsBitmap p;
2776         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
2777         return p;
2778     }
2779     else
2780         return wxNullGraphicsBitmap;
2781 }
2782
2783 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmapFromNativeBitmap( void* bitmap )
2784 {
2785     if ( bitmap != NULL )
2786     {
2787         wxGraphicsBitmap p;
2788         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , (CGImageRef) bitmap, false ));
2789         return p;
2790     }
2791     else
2792         return wxNullGraphicsBitmap;
2793 }
2794
2795 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
2796 {
2797     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2798     CGImageRef img = refdata->GetBitmap();
2799     if ( img )
2800     {
2801         wxGraphicsBitmap p;
2802         CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h ));
2803         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg, refdata->IsMonochrome() ) );
2804         return p;
2805     }
2806     else
2807         return wxNullGraphicsBitmap;
2808 }
2809
2810 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2811 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2812     const wxColour&c1, const wxColour&c2)
2813 {
2814     wxGraphicsBrush p;
2815     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2816     d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
2817     p.SetRefData(d);
2818     return p;
2819 }
2820
2821 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2822 // with radius r and color cColor
2823 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2824     const wxColour &oColor, const wxColour &cColor)
2825 {
2826     wxGraphicsBrush p;
2827     wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2828     d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
2829     p.SetRefData(d);
2830     return p;
2831 }
2832
2833 // sets the font
2834 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
2835 {
2836     if ( font.Ok() )
2837     {
2838         wxGraphicsFont p;
2839         p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
2840         return p;
2841     }
2842     else
2843         return wxNullGraphicsFont;
2844 }
2845
2846 //
2847 // CoreGraphics Helper Methods
2848 //
2849
2850 // Data Providers and Consumers
2851
2852 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
2853 {
2854     CFMutableDataRef data = (CFMutableDataRef) info;
2855     if ( data )
2856     {
2857         CFDataAppendBytes( data, (const UInt8*) bytes, count );
2858     }
2859     return count;
2860 }
2861
2862 void wxMacReleaseCFDataProviderCallback(void *info,
2863                                       const void *WXUNUSED(data),
2864                                       size_t WXUNUSED(count))
2865 {
2866     if ( info )
2867         CFRelease( (CFDataRef) info );
2868 }
2869
2870 void wxMacReleaseCFDataConsumerCallback( void *info )
2871 {
2872     if ( info )
2873         CFRelease( (CFDataRef) info );
2874 }
2875
2876 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
2877 {
2878     if ( data == NULL )
2879         return NULL;
2880
2881     return CGDataProviderCreateWithCFData( data );
2882 }
2883
2884 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
2885 {
2886     if ( data == NULL )
2887         return NULL;
2888
2889     return CGDataConsumerCreateWithCFData( data );
2890 }
2891
2892 void
2893 wxMacReleaseMemoryBufferProviderCallback(void *info,
2894                                          const void * WXUNUSED_UNLESS_DEBUG(data),
2895                                          size_t WXUNUSED(size))
2896 {
2897     wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
2898
2899     wxASSERT( data == membuf->GetData() ) ;
2900
2901     delete membuf ;
2902 }
2903
2904 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
2905 {
2906     wxMemoryBuffer* b = new wxMemoryBuffer( buf );
2907     if ( b->GetDataLen() == 0 )
2908         return NULL;
2909
2910     return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
2911                                                  wxMacReleaseMemoryBufferProviderCallback );
2912 }