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 wxSOLID :
 457             break;
 458
 459         case wxDOT :
 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 wxLONG_DASH :
 467             m_count = WXSIZEOF(dashed);
 468             m_lengths = dashed;
 469             break;
 470
 471         case wxSHORT_DASH :
 472             m_count = WXSIZEOF(short_dashed);
 473             m_lengths = short_dashed;
 474             break;
 475
 476         case wxDOT_DASH :
 477             m_count = WXSIZEOF(dotted_dashed);
 478             m_lengths = dotted_dashed;
 479             break;
 480
 481         case wxUSER_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 wxSTIPPLE :
 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 static const char *gs_stripedback_xpm[] = {
 577 /* columns rows colors chars-per-pixel */
 578 "4 4 2 1",
 579 ". c #F0F0F0",
 580 "X c #ECECEC",
 581 /* pixels */
 582 "....",
 583 "....",
 584 "XXXX",
 585 "XXXX"
 586 };
 587
 588 wxBitmap gs_stripedback_bmp( wxImage( (const char* const* ) gs_stripedback_xpm  ), -1 ) ;
 589
 590 // make sure we all use one class for all conversions from wx to native colour
 591
 592 class wxMacCoreGraphicsColour
 593 {
 594     public:
 595         wxMacCoreGraphicsColour();
 596         wxMacCoreGraphicsColour(const wxBrush &brush);
 597         ~wxMacCoreGraphicsColour();
 598
 599         void Apply( CGContextRef cgContext );
 600     protected:
 601         void Init();
 602         wxCFRef<CGColorRef> m_color;
 603         wxCFRef<CGColorSpaceRef> m_colorSpace;
 604
 605         bool m_isPattern;
 606         wxCFRef<CGPatternRef> m_pattern;
 607         CGFloat* m_patternColorComponents;
 608 } ;
 609
 610 wxMacCoreGraphicsColour::~wxMacCoreGraphicsColour()
 611 {
 612     delete[] m_patternColorComponents;
 613 }
 614
 615 void wxMacCoreGraphicsColour::Init()
 616 {
 617     m_isPattern = false;
 618     m_patternColorComponents = NULL;
 619 }
 620
 621 void wxMacCoreGraphicsColour::Apply( CGContextRef cgContext )
 622 {
 623     if ( m_isPattern )
 624     {
 625         CGAffineTransform matrix = CGContextGetCTM( cgContext );
 626         CGContextSetPatternPhase( cgContext, CGSizeMake(matrix.tx, matrix.ty) );
 627         CGContextSetFillColorSpace( cgContext , m_colorSpace );
 628         CGContextSetFillPattern( cgContext, m_pattern , m_patternColorComponents );
 629     }
 630     else
 631     {
 632         CGContextSetFillColorWithColor( cgContext, m_color );
 633     }
 634 }
 635
 636 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour()
 637 {
 638     Init();
 639 }
 640
 641 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour( const wxBrush &brush )
 642 {
 643     Init();
 644     if ( brush.GetStyle() == wxSOLID )
 645     {
 646         m_color.reset( wxMacCreateCGColor( brush.GetColour() ));
 647     }
 648     else if ( brush.IsHatch() )
 649     {
 650         m_isPattern = true;
 651         m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
 652         m_pattern.reset( (CGPatternRef) *( new HatchPattern( brush.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 653
 654         m_patternColorComponents = new CGFloat[4] ;
 655         m_patternColorComponents[0] = (CGFloat) (brush.GetColour().Red() / 255.0);
 656         m_patternColorComponents[1] = (CGFloat) (brush.GetColour().Green() / 255.0);
 657         m_patternColorComponents[2] = (CGFloat) (brush.GetColour().Blue() / 255.0);
 658         m_patternColorComponents[3] = (CGFloat) (brush.GetColour().Alpha() / 255.0);
 659     }
 660     else
 661     {
 662         // now brush is a bitmap
 663         wxBitmap* bmp = brush.GetStipple();
 664         if ( bmp && bmp->Ok() )
 665         {
 666             m_isPattern = true;
 667             m_patternColorComponents = new CGFloat[1] ;
 668             m_patternColorComponents[0] = (CGFloat) 1.0;
 669             m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
 670             m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
 671         }
 672     }
 673 }
 674
 675 class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
 676 {
 677 public:
 678     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
 679     wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
 680     ~wxMacCoreGraphicsBrushData ();
 681
 682     virtual void Apply( wxGraphicsContext* context );
 683     void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 684         const wxColour&c1, const wxColour&c2 );
 685     void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 686     const wxColour &oColor, const wxColour &cColor );
 687
 688     virtual bool IsShading() { return m_isShading; }
 689     CGShadingRef GetShading() { return m_shading; }
 690 protected:
 691     CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 );
 692     static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
 693     virtual void Init();
 694
 695     wxMacCoreGraphicsColour m_cgColor;
 696
 697     bool m_isShading;
 698     CGFunctionRef m_gradientFunction;
 699     CGShadingRef m_shading;
 700     CGFloat *m_gradientComponents;
 701 };
 702
 703 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
 704 {
 705     Init();
 706 }
 707
 708 void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
 709         const wxColour&c1, const wxColour&c2 )
 710 {
 711     m_gradientFunction = CreateGradientFunction( c1, c2 );
 712     m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) x1, (CGFloat) y1),
 713                                         CGPointMake((CGFloat) x2,(CGFloat) y2), m_gradientFunction, true, true ) ;
 714     m_isShading = true ;
 715 }
 716
 717 void wxMacCoreGraphicsBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
 718     const wxColour &oColor, const wxColour &cColor )
 719 {
 720     m_gradientFunction = CreateGradientFunction( oColor, cColor );
 721     m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) xo,(CGFloat) yo), 0,
 722                                         CGPointMake((CGFloat) xc,(CGFloat) yc), (CGFloat) radius, m_gradientFunction, true, true ) ;
 723     m_isShading = true ;
 724 }
 725
 726 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer ),
 727     m_cgColor( brush )
 728 {
 729     Init();
 730
 731 }
 732
 733 wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
 734 {
 735     if ( m_shading )
 736         CGShadingRelease(m_shading);
 737
 738     if( m_gradientFunction )
 739         CGFunctionRelease(m_gradientFunction);
 740
 741     delete[] m_gradientComponents;
 742 }
 743
 744 void wxMacCoreGraphicsBrushData::Init()
 745 {
 746     m_gradientFunction = NULL;
 747     m_shading = NULL;
 748     m_gradientComponents = NULL;
 749     m_isShading = false;
 750 }
 751
 752 void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
 753 {
 754     CGContextRef cg = (CGContextRef) context->GetNativeContext();
 755
 756     if ( m_isShading )
 757     {
 758         // nothing to set as shades are processed by clipping using the path and filling
 759     }
 760     else
 761     {
 762         m_cgColor.Apply( cg );
 763     }
 764 }
 765
 766 void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
 767 {
 768     CGFloat* colors = (CGFloat*) info ;
 769     CGFloat f = *in;
 770     for( int i = 0 ; i < 4 ; ++i )
 771     {
 772         out[i] = colors[i] + ( colors[4+i] - colors[i] ) * f;
 773     }
 774 }
 775
 776 CGFunctionRef wxMacCoreGraphicsBrushData::CreateGradientFunction( const wxColour& c1, const wxColour& c2 )
 777 {
 778     static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL };
 779     static const CGFloat input_value_range [2] = { 0, 1 };
 780     static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 };
 781     m_gradientComponents = new CGFloat[8] ;
 782     m_gradientComponents[0] = (CGFloat) (c1.Red() / 255.0);
 783     m_gradientComponents[1] = (CGFloat) (c1.Green() / 255.0);
 784     m_gradientComponents[2] = (CGFloat) (c1.Blue() / 255.0);
 785     m_gradientComponents[3] = (CGFloat) (c1.Alpha() / 255.0);
 786     m_gradientComponents[4] = (CGFloat) (c2.Red() / 255.0);
 787     m_gradientComponents[5] = (CGFloat) (c2.Green() / 255.0);
 788     m_gradientComponents[6] = (CGFloat) (c2.Blue() / 255.0);
 789     m_gradientComponents[7] = (CGFloat) (c2.Alpha() / 255.0);
 790
 791     return CGFunctionCreate ( m_gradientComponents,  1,
 792                             input_value_range,
 793                             4,
 794                             output_value_ranges,
 795                             &callbacks);
 796 }
 797
 798 //
 799 // Font
 800 //
 801
 802 #if wxOSX_USE_IPHONE
 803
 804 extern UIFont* CreateUIFont( const wxFont& font );
 805 extern void DrawTextInContext( CGContextRef context, CGPoint where, UIFont *font, NSString* text );
 806 extern CGSize MeasureTextInContext( UIFont *font, NSString* text );
 807
 808 #endif
 809
 810 class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
 811 {
 812 public:
 813     wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
 814     ~wxMacCoreGraphicsFontData();
 815
 816 #if wxOSX_USE_ATSU_TEXT
 817     virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
 818 #endif
 819 #if wxOSX_USE_CORE_TEXT
 820     CTFontRef OSXGetCTFont() const { return m_ctFont ; }
 821 #endif
 822     wxColour GetColour() const { return m_colour ; }
 823
 824     bool GetUnderlined() const { return m_underlined ; }
 825 #if wxOSX_USE_IPHONE
 826     UIFont* GetUIFont() const { return m_uiFont; }
 827 #endif
 828 private :
 829     wxColour m_colour;
 830     bool m_underlined;
 831 #if wxOSX_USE_ATSU_TEXT
 832     ATSUStyle m_macATSUIStyle;
 833 #endif
 834 #if wxOSX_USE_CORE_TEXT
 835     wxCFRef< CTFontRef > m_ctFont;
 836 #endif
 837 #if wxOSX_USE_IPHONE
 838     UIFont*  m_uiFont;
 839 #endif
 840 };
 841
 842 wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
 843 {
 844     m_colour = col;
 845     m_underlined = font.GetUnderlined();
 846
 847 #if wxOSX_USE_CORE_TEXT
 848     m_ctFont.reset( wxMacCreateCTFont( font ) );
 849 #endif
 850 #if wxOSX_USE_IPHONE
 851     m_uiFont = CreateUIFont(font);
 852     wxMacCocoaRetain( m_uiFont );
 853 #endif
 854 #if wxOSX_USE_ATSU_TEXT
 855     OSStatus status = noErr;
 856     m_macATSUIStyle = NULL;
 857
 858     status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
 859
 860     wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
 861
 862     // we need the scale here ...
 863
 864     Fixed atsuSize = IntToFixed( int( 1 * font.GetPointSize()) );
 865     RGBColor atsuColor ;
 866     col.GetRGBColor( &atsuColor );
 867     ATSUAttributeTag atsuTags[] =
 868     {
 869             kATSUSizeTag ,
 870             kATSUColorTag ,
 871     };
 872     ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 873     {
 874             sizeof( Fixed ) ,
 875             sizeof( RGBColor ) ,
 876     };
 877     ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 878     {
 879             &atsuSize ,
 880             &atsuColor ,
 881     };
 882
 883     status = ::ATSUSetAttributes(
 884         m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
 885         atsuTags, atsuSizes, atsuValues);
 886
 887     wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
 888 #endif
 889 }
 890
 891 wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
 892 {
 893 #if wxOSX_USE_CORE_TEXT
 894 #endif
 895 #if wxOSX_USE_ATSU_TEXT
 896     if ( m_macATSUIStyle )
 897     {
 898         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 899         m_macATSUIStyle = NULL;
 900     }
 901 #endif
 902 #if wxOSX_USE_IPHONE
 903     wxMacCocoaRelease( m_uiFont );
 904 #endif
 905 }
 906
 907 class wxMacCoreGraphicsBitmapData : public wxGraphicsObjectRefData
 908 {
 909 public:
 910     wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome );
 911     ~wxMacCoreGraphicsBitmapData();
 912
 913     virtual CGImageRef GetBitmap() { return m_bitmap; }
 914     bool IsMonochrome() { return m_monochrome; }
 915 private :
 916     CGImageRef m_bitmap;
 917     bool m_monochrome;
 918 };
 919
 920 wxMacCoreGraphicsBitmapData::wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome ) : wxGraphicsObjectRefData( renderer ),
 921     m_bitmap(bitmap), m_monochrome(monochrome)
 922 {
 923 }
 924
 925 wxMacCoreGraphicsBitmapData::~wxMacCoreGraphicsBitmapData()
 926 {
 927     CGImageRelease( m_bitmap );
 928 }
 929
 930 //
 931 // Graphics Matrix
 932 //
 933
 934 //-----------------------------------------------------------------------------
 935 // wxMacCoreGraphicsMatrix declaration
 936 //-----------------------------------------------------------------------------
 937
 938 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
 939 {
 940 public :
 941     wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
 942
 943     virtual ~wxMacCoreGraphicsMatrixData() ;
 944
 945     virtual wxGraphicsObjectRefData *Clone() const ;
 946
 947     // concatenates the matrix
 948     virtual void Concat( const wxGraphicsMatrixData *t );
 949
 950     // sets the matrix to the respective values
 951     virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
 952         wxDouble tx=0.0, wxDouble ty=0.0);
 953
 954     // gets the component valuess of the matrix
 955     virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL,  wxDouble* c=NULL,
 956                      wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
 957
 958     // makes this the inverse matrix
 959     virtual void Invert();
 960
 961     // returns true if the elements of the transformation matrix are equal ?
 962     virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
 963
 964     // return true if this is the identity matrix
 965     virtual bool IsIdentity() const;
 966
 967     //
 968     // transformation
 969     //
 970
 971     // add the translation to this matrix
 972     virtual void Translate( wxDouble dx , wxDouble dy );
 973
 974     // add the scale to this matrix
 975     virtual void Scale( wxDouble xScale , wxDouble yScale );
 976
 977     // add the rotation to this matrix (radians)
 978     virtual void Rotate( wxDouble angle );
 979
 980     //
 981     // apply the transforms
 982     //
 983
 984     // applies that matrix to the point
 985     virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
 986
 987     // applies the matrix except for translations
 988     virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
 989
 990     // returns the native representation
 991     virtual void * GetNativeMatrix() const;
 992
 993 private :
 994     CGAffineTransform m_matrix;
 995 } ;
 996
 997 //-----------------------------------------------------------------------------
 998 // wxMacCoreGraphicsMatrix implementation
 999 //-----------------------------------------------------------------------------
1000
1001 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
1002 {
1003 }
1004
1005 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
1006 {
1007 }
1008
1009 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
1010 {
1011     wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
1012     m->m_matrix = m_matrix ;
1013     return m;
1014 }
1015
1016 // concatenates the matrix
1017 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
1018 {
1019     m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
1020 }
1021
1022 // sets the matrix to the respective values
1023 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
1024     wxDouble tx, wxDouble ty)
1025 {
1026     m_matrix = CGAffineTransformMake((CGFloat) a,(CGFloat) b,(CGFloat) c,(CGFloat) d,(CGFloat) tx,(CGFloat) ty);
1027 }
1028
1029 // gets the component valuess of the matrix
1030 void wxMacCoreGraphicsMatrixData::Get(wxDouble* a, wxDouble* b,  wxDouble* c,
1031                                       wxDouble* d, wxDouble* tx, wxDouble* ty) const
1032 {
1033     if (a)  *a = m_matrix.a;
1034     if (b)  *b = m_matrix.b;
1035     if (c)  *c = m_matrix.c;
1036     if (d)  *d = m_matrix.d;
1037     if (tx) *tx= m_matrix.tx;
1038     if (ty) *ty= m_matrix.ty;
1039 }
1040
1041 // makes this the inverse matrix
1042 void wxMacCoreGraphicsMatrixData::Invert()
1043 {
1044     m_matrix = CGAffineTransformInvert( m_matrix );
1045 }
1046
1047 // returns true if the elements of the transformation matrix are equal ?
1048 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
1049 {
1050     return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
1051 }
1052
1053 // return true if this is the identity matrix
1054 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
1055 {
1056     return ( m_matrix.a == 1 && m_matrix.d == 1 &&
1057         m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
1058 }
1059
1060 //
1061 // transformation
1062 //
1063
1064 // add the translation to this matrix
1065 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
1066 {
1067     m_matrix = CGAffineTransformTranslate( m_matrix, (CGFloat) dx, (CGFloat) dy);
1068 }
1069
1070 // add the scale to this matrix
1071 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1072 {
1073     m_matrix = CGAffineTransformScale( m_matrix, (CGFloat) xScale, (CGFloat) yScale);
1074 }
1075
1076 // add the rotation to this matrix (radians)
1077 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
1078 {
1079     m_matrix = CGAffineTransformRotate( m_matrix, (CGFloat) angle);
1080 }
1081
1082 //
1083 // apply the transforms
1084 //
1085
1086 // applies that matrix to the point
1087 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1088 {
1089     CGPoint pt = CGPointApplyAffineTransform( CGPointMake((CGFloat) *x,(CGFloat) *y), m_matrix);
1090
1091     *x = pt.x;
1092     *y = pt.y;
1093 }
1094
1095 // applies the matrix except for translations
1096 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1097 {
1098     CGSize sz = CGSizeApplyAffineTransform( CGSizeMake((CGFloat) *dx,(CGFloat) *dy) , m_matrix );
1099     *dx = sz.width;
1100     *dy = sz.height;
1101 }
1102
1103 // returns the native representation
1104 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
1105 {
1106     return (void*) &m_matrix;
1107 }
1108
1109 //
1110 // Graphics Path
1111 //
1112
1113 //-----------------------------------------------------------------------------
1114 // wxMacCoreGraphicsPath declaration
1115 //-----------------------------------------------------------------------------
1116
1117 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
1118 {
1119 public :
1120     wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
1121
1122     ~wxMacCoreGraphicsPathData();
1123
1124     virtual wxGraphicsObjectRefData *Clone() const;
1125
1126     // begins a new subpath at (x,y)
1127     virtual void MoveToPoint( wxDouble x, wxDouble y );
1128
1129     // adds a straight line from the current point to (x,y)
1130     virtual void AddLineToPoint( wxDouble x, wxDouble y );
1131
1132     // adds a cubic Bezier curve from the current point, using two control points and an end point
1133     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
1134
1135     // closes the current sub-path
1136     virtual void CloseSubpath();
1137
1138     // gets the last point of the current path, (0,0) if not yet set
1139     virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
1140
1141     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1142     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
1143
1144     //
1145     // These are convenience functions which - if not available natively will be assembled
1146     // using the primitives from above
1147     //
1148
1149     // adds a quadratic Bezier curve from the current point, using a control point and an end point
1150     virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
1151
1152     // appends a rectangle as a new closed subpath
1153     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1154
1155     // appends an ellipsis as a new closed subpath fitting the passed rectangle
1156     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1157
1158     // 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)
1159     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1160
1161     // adds another path
1162     virtual void AddPath( const wxGraphicsPathData* path );
1163
1164     // returns the native path
1165     virtual void * GetNativePath() const { return m_path; }
1166
1167     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1168     virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1169
1170     // transforms each point of this path by the matrix
1171     virtual void Transform( const wxGraphicsMatrixData* matrix );
1172
1173     // gets the bounding box enclosing all points (possibly including control points)
1174     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
1175
1176     virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
1177 private :
1178     CGMutablePathRef m_path;
1179 };
1180
1181 //-----------------------------------------------------------------------------
1182 // wxMacCoreGraphicsPath implementation
1183 //-----------------------------------------------------------------------------
1184
1185 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1186 {
1187     if ( path )
1188         m_path = path;
1189     else
1190         m_path = CGPathCreateMutable();
1191 }
1192
1193 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1194 {
1195     CGPathRelease( m_path );
1196 }
1197
1198 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1199 {
1200     wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1201     return clone ;
1202 }
1203
1204
1205 // opens (starts) a new subpath
1206 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1207 {
1208     CGPathMoveToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1209 }
1210
1211 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1212 {
1213     CGPathAddLineToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1214 }
1215
1216 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1217 {
1218     CGPathAddCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) cx2, (CGFloat) cy2, (CGFloat) x , (CGFloat) y );
1219 }
1220
1221 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1222 {
1223     CGPathAddQuadCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) x , (CGFloat) y );
1224 }
1225
1226 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1227 {
1228     CGRect cgRect = { { (CGFloat) x , (CGFloat) y } , { (CGFloat) w , (CGFloat) h } };
1229     CGPathAddRect( m_path , NULL , cgRect );
1230 }
1231
1232 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1233 {
1234     CGPathAddArc( m_path , NULL , (CGFloat) x , (CGFloat) y , (CGFloat) r , (CGFloat) 0.0 , (CGFloat) (2 * M_PI) , true );
1235 }
1236
1237 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1238 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1239 {
1240     // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1241     CGPathAddArc( m_path, NULL , (CGFloat) x, (CGFloat) y, (CGFloat) r, (CGFloat) startAngle, (CGFloat) endAngle, !clockwise);
1242 }
1243
1244 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1245 {
1246     CGPathAddArcToPoint( m_path, NULL , (CGFloat) x1, (CGFloat) y1, (CGFloat) x2, (CGFloat) y2, (CGFloat) r);
1247 }
1248
1249 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1250 {
1251     CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1252 }
1253
1254 // closes the current subpath
1255 void wxMacCoreGraphicsPathData::CloseSubpath()
1256 {
1257     CGPathCloseSubpath( m_path );
1258 }
1259
1260 // gets the last point of the current path, (0,0) if not yet set
1261 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1262 {
1263     CGPoint p = CGPathGetCurrentPoint( m_path );
1264     *x = p.x;
1265     *y = p.y;
1266 }
1267
1268 // transforms each point of this path by the matrix
1269 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1270 {
1271     CGMutablePathRef p = CGPathCreateMutable() ;
1272     CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1273     CGPathRelease( m_path );
1274     m_path = p;
1275 }
1276
1277 // gets the bounding box enclosing all points (possibly including control points)
1278 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1279 {
1280     CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1281     *x = bounds.origin.x;
1282     *y = bounds.origin.y;
1283     *w = bounds.size.width;
1284     *h = bounds.size.height;
1285 }
1286
1287 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle) const
1288 {
1289     return CGPathContainsPoint( m_path, NULL, CGPointMake((CGFloat) x,(CGFloat) y), fillStyle == wxODDEVEN_RULE );
1290 }
1291
1292 //
1293 // Graphics Context
1294 //
1295
1296 //-----------------------------------------------------------------------------
1297 // wxMacCoreGraphicsContext declaration
1298 //-----------------------------------------------------------------------------
1299
1300 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1301 {
1302 public:
1303     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1304
1305 #if wxOSX_USE_CARBON
1306     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1307 #endif
1308
1309     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1310
1311     wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1312
1313     wxMacCoreGraphicsContext();
1314
1315     ~wxMacCoreGraphicsContext();
1316
1317     void Init();
1318
1319     // returns the size of the graphics context in device coordinates
1320     virtual void GetSize( wxDouble* width, wxDouble* height);
1321
1322     virtual void StartPage( wxDouble width, wxDouble height );
1323
1324     virtual void EndPage();
1325
1326     virtual void Flush();
1327
1328     // push the current state of the context, ie the transformation matrix on a stack
1329     virtual void PushState();
1330
1331     // pops a stored state from the stack
1332     virtual void PopState();
1333
1334     // clips drawings to the region
1335     virtual void Clip( const wxRegion &region );
1336
1337     // clips drawings to the rect
1338     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1339
1340     // resets the clipping to original extent
1341     virtual void ResetClip();
1342
1343     virtual void * GetNativeContext();
1344
1345     virtual bool SetAntialiasMode(wxAntialiasMode antialias);
1346
1347     virtual bool SetCompositionMode(wxCompositionMode op);
1348
1349     virtual void BeginLayer(wxDouble opacity);
1350
1351     virtual void EndLayer();
1352
1353     //
1354     // transformation
1355     //
1356
1357     // translate
1358     virtual void Translate( wxDouble dx , wxDouble dy );
1359
1360     // scale
1361     virtual void Scale( wxDouble xScale , wxDouble yScale );
1362
1363     // rotate (radians)
1364     virtual void Rotate( wxDouble angle );
1365
1366     // concatenates this transform with the current transform of this context
1367     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1368
1369     // sets the transform of this context
1370     virtual void SetTransform( const wxGraphicsMatrix& matrix );
1371
1372     // gets the matrix of this context
1373     virtual wxGraphicsMatrix GetTransform() const;
1374     //
1375     // setting the paint
1376     //
1377
1378     // strokes along a path with the current pen
1379     virtual void StrokePath( const wxGraphicsPath &path );
1380
1381     // fills a path with the current brush
1382     virtual void FillPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1383
1384     // draws a path by first filling and then stroking
1385     virtual void DrawPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1386
1387     virtual bool ShouldOffset() const
1388     {
1389         int penwidth = 0 ;
1390         if ( !m_pen.IsNull() )
1391         {
1392             penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1393             if ( penwidth == 0 )
1394                 penwidth = 1;
1395         }
1396         return ( penwidth % 2 ) == 1;
1397     }
1398     //
1399     // text
1400     //
1401
1402     virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1403         wxDouble *descent, wxDouble *externalLeading ) const;
1404
1405     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1406
1407     //
1408     // image support
1409     //
1410
1411     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1412
1413     virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1414
1415     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1416
1417     void SetNativeContext( CGContextRef cg );
1418
1419     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsContext)
1420
1421 private:
1422     bool EnsureIsValid();
1423
1424     virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
1425     virtual void DoDrawRotatedText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1426
1427     CGContextRef m_cgContext;
1428 #if wxOSX_USE_CARBON
1429     WindowRef m_windowRef;
1430 #else
1431     WXWidget m_view;
1432 #endif
1433     bool m_contextSynthesized;
1434     CGAffineTransform m_windowTransform;
1435     wxDouble m_width;
1436     wxDouble m_height;
1437     bool m_invisible;
1438
1439 #if wxOSX_USE_COCOA_OR_CARBON
1440     wxCFRef<HIShapeRef> m_clipRgn;
1441 #endif
1442 };
1443
1444 //-----------------------------------------------------------------------------
1445 // device context implementation
1446 //
1447 // more and more of the dc functionality should be implemented by calling
1448 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1449 // also coordinate conversions should be moved to native matrix ops
1450 //-----------------------------------------------------------------------------
1451
1452 // we always stock two context states, one at entry, to be able to preserve the
1453 // state we were called with, the other one after changing to HI Graphics orientation
1454 // (this one is used for getting back clippings etc)
1455
1456 //-----------------------------------------------------------------------------
1457 // wxMacCoreGraphicsContext implementation
1458 //-----------------------------------------------------------------------------
1459
1460 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1461
1462 class wxQuartzOffsetHelper
1463 {
1464 public :
1465     wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1466     {
1467         m_cg = cg;
1468         m_offset = offset;
1469         if ( m_offset )
1470             CGContextTranslateCTM( m_cg, (CGFloat) 0.5, (CGFloat) 0.5 );
1471     }
1472     ~wxQuartzOffsetHelper( )
1473     {
1474         if ( m_offset )
1475             CGContextTranslateCTM( m_cg, (CGFloat) -0.5, (CGFloat) -0.5 );
1476     }
1477 public :
1478     CGContextRef m_cg;
1479     bool m_offset;
1480 } ;
1481
1482 void wxMacCoreGraphicsContext::Init()
1483 {
1484     m_cgContext = NULL;
1485     m_contextSynthesized = false;
1486     m_width = 0;
1487     m_height = 0;
1488 #if wxOSX_USE_CARBON
1489     m_windowRef = NULL;
1490 #endif
1491 #if wxOSX_USE_COCOA_OR_IPHONE
1492     m_view = NULL;
1493 #endif
1494     m_invisible = false;
1495 }
1496
1497 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer)
1498 {
1499     Init();
1500     SetNativeContext(cgcontext);
1501     m_width = width;
1502     m_height = height;
1503 }
1504
1505 #if wxOSX_USE_CARBON
1506 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1507 {
1508     Init();
1509     m_windowRef = window;
1510 }
1511 #endif
1512
1513 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1514 {
1515     Init();
1516
1517     wxSize sz = window->GetSize();
1518     m_width = sz.x;
1519     m_height = sz.y;
1520
1521 #if wxOSX_USE_COCOA_OR_IPHONE
1522     m_view = window->GetHandle();
1523
1524 #if wxOSX_USE_COCOA
1525     if ( ! window->GetPeer()->IsFlipped() )
1526     {
1527         m_windowTransform = CGAffineTransformMakeTranslation( 0 , m_height );
1528         m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1529     }
1530     else
1531 #endif
1532     {
1533         m_windowTransform = CGAffineTransformIdentity;
1534     }
1535 #else
1536     int originX , originY;
1537     originX = originY = 0;
1538     Rect bounds = { 0,0,0,0 };
1539     m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1540     window->MacWindowToRootWindow( &originX , &originY );
1541     GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1542     m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1543     m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1544     m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1545 #endif
1546 }
1547
1548 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1549 {
1550     Init();
1551 }
1552
1553 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1554 {
1555     Init();
1556     wxLogDebug(wxT("Illegal Constructor called"));
1557 }
1558
1559 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1560 {
1561     SetNativeContext(NULL);
1562 }
1563
1564 void wxMacCoreGraphicsContext::GetSize( wxDouble* width, wxDouble* height)
1565 {
1566     *width = m_width;
1567     *height = m_height;
1568 }
1569
1570
1571 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1572 {
1573     CGRect r;
1574     if ( width != 0 && height != 0)
1575         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) width  , (CGFloat) height );
1576     else
1577         r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) m_width  , (CGFloat) m_height );
1578
1579     CGContextBeginPage(m_cgContext,  &r );
1580 //    CGContextTranslateCTM( m_cgContext , 0 ,  height == 0 ? m_height : height );
1581 //    CGContextScaleCTM( m_cgContext , 1 , -1 );
1582 }
1583
1584 void wxMacCoreGraphicsContext::EndPage()
1585 {
1586     CGContextEndPage(m_cgContext);
1587 }
1588
1589 void wxMacCoreGraphicsContext::Flush()
1590 {
1591     CGContextFlush(m_cgContext);
1592 }
1593
1594 bool wxMacCoreGraphicsContext::EnsureIsValid()
1595 {
1596     if ( !m_cgContext )
1597     {
1598         if (m_invisible)
1599             return false;
1600
1601 #if wxOSX_USE_COCOA
1602         if ( wxOSXLockFocus(m_view) )
1603         {
1604             m_cgContext = wxOSXGetContextFromCurrentContext();
1605             wxASSERT_MSG( m_cgContext != NULL, _T("Unable to retrieve drawing context from View"));
1606         }
1607         else
1608         {
1609             m_invisible = true;
1610         }
1611 #endif
1612 #if wxOSX_USE_IPHONE
1613         m_cgContext = wxOSXGetContextFromCurrentContext();
1614         if ( m_cgContext == NULL )
1615         {
1616             m_invisible = true;
1617         }
1618 #endif
1619 #if wxOSX_USE_CARBON
1620         OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1621         if ( status != noErr )
1622         {
1623             wxFAIL_MSG("Cannot nest wxDCs on the same window");
1624         }
1625 #endif
1626         if ( m_cgContext )
1627         {
1628             CGContextConcatCTM( m_cgContext, m_windowTransform );
1629             CGContextSaveGState( m_cgContext );
1630             m_contextSynthesized = true;
1631 #if wxOSX_USE_COCOA_OR_CARBON
1632             if ( m_clipRgn.get() )
1633             {
1634                 // the clip region is in device coordinates, so we convert this again to user coordinates
1635                 wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1636                 CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero,m_windowTransform);
1637                 HIShapeOffset( hishape, -transformedOrigin.x, -transformedOrigin.y );
1638                 // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1639                 if ( HIShapeIsEmpty(hishape))
1640                 {
1641                     CGRect empty = CGRectMake( 0,0,0,0 );
1642                     CGContextClipToRect( m_cgContext, empty );
1643                 }
1644                 else
1645                 {
1646                     HIShapeReplacePathInCGContext( hishape, m_cgContext );
1647                     CGContextClip( m_cgContext );
1648                 }
1649             }
1650 #endif
1651             CGContextSaveGState( m_cgContext );
1652
1653 #if 0 // turn on for debugging of clientdc
1654             static float color = 0.5 ;
1655             static int channel = 0 ;
1656             CGRect bounds = CGRectMake(-1000,-1000,2000,2000);
1657             CGContextSetRGBFillColor( m_cgContext, channel == 0 ? color : 0.5 ,
1658                 channel == 1 ? color : 0.5 , channel == 2 ? color : 0.5 , 1 );
1659             CGContextFillRect( m_cgContext, bounds );
1660             color += 0.1 ;
1661             if ( color > 0.9 )
1662             {
1663                 color = 0.5 ;
1664                 channel++ ;
1665                 if ( channel == 3 )
1666                     channel = 0 ;
1667             }
1668 #endif
1669         }
1670     }
1671     return m_cgContext != NULL;
1672 }
1673
1674 bool wxMacCoreGraphicsContext::SetAntialiasMode(wxAntialiasMode antialias)
1675 {
1676     if (EnsureIsValid()==false)
1677         return true;
1678
1679     if (m_antialias == antialias)
1680         return true;
1681
1682     m_antialias = antialias;
1683
1684     bool antialiasMode;
1685     switch (antialias)
1686     {
1687         case wxANTIALIAS_DEFAULT:
1688             antialiasMode = true;
1689             break;
1690         case wxANTIALIAS_NONE:
1691             antialiasMode = false;
1692             break;
1693         default:
1694             return false;
1695     }
1696     CGContextSetShouldAntialias(m_cgContext, antialiasMode);
1697     return true;
1698 }
1699
1700 bool wxMacCoreGraphicsContext::SetCompositionMode(wxCompositionMode op)
1701 {
1702     if (EnsureIsValid()==false)
1703         return true;
1704
1705     if ( m_composition == op )
1706         return true;
1707
1708     m_composition = op;
1709
1710     if (m_composition == wxCOMPOSITION_DEST)
1711         return true;
1712
1713 #if wxOSX_USE_COCOA_OR_CARBON
1714     if ( UMAGetSystemVersion() < 0x1060 )
1715     {
1716         CGCompositeOperation cop = kCGCompositeOperationSourceOver;
1717         CGBlendMode mode = kCGBlendModeNormal;
1718         switch( op )
1719         {
1720         case wxCOMPOSITION_CLEAR:
1721             cop = kCGCompositeOperationClear;
1722             break;
1723         case wxCOMPOSITION_SOURCE:
1724             cop = kCGCompositeOperationCopy;
1725             break;
1726         case wxCOMPOSITION_OVER:
1727             mode = kCGBlendModeNormal;
1728             break;
1729         case wxCOMPOSITION_IN:
1730             cop = kCGCompositeOperationSourceIn;
1731             break;
1732         case wxCOMPOSITION_OUT:
1733             cop = kCGCompositeOperationSourceOut;
1734             break;
1735         case wxCOMPOSITION_ATOP:
1736             cop = kCGCompositeOperationSourceAtop;
1737             break;
1738         case wxCOMPOSITION_DEST_OVER:
1739             cop = kCGCompositeOperationDestinationOver;
1740             break;
1741         case wxCOMPOSITION_DEST_IN:
1742             cop = kCGCompositeOperationDestinationIn;
1743             break;
1744         case wxCOMPOSITION_DEST_OUT:
1745             cop = kCGCompositeOperationDestinationOut;
1746             break;
1747         case wxCOMPOSITION_DEST_ATOP:
1748            cop = kCGCompositeOperationDestinationAtop;
1749             break;
1750         case wxCOMPOSITION_XOR:
1751             cop = kCGCompositeOperationXOR;
1752             break;
1753 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1754         case wxCOMPOSITION_ADD:
1755             mode = kCGBlendModePlusLighter ;
1756             break;
1757 #endif
1758         default:
1759             return false;
1760         }
1761         if ( cop != kCGCompositeOperationSourceOver )
1762             CGContextSetCompositeOperation(m_cgContext, cop);
1763         else
1764             CGContextSetBlendMode(m_cgContext, mode);
1765     }
1766 #endif
1767 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1768     else
1769     {
1770         CGBlendMode mode = kCGBlendModeNormal;
1771         switch( op )
1772         {
1773         case wxCOMPOSITION_CLEAR:
1774             mode = kCGBlendModeClear;
1775             break;
1776         case wxCOMPOSITION_SOURCE:
1777             mode = kCGBlendModeCopy;
1778             break;
1779         case wxCOMPOSITION_OVER:
1780             mode = kCGBlendModeNormal;
1781             break;
1782         case wxCOMPOSITION_IN:
1783             mode = kCGBlendModeSourceIn;
1784             break;
1785         case wxCOMPOSITION_OUT:
1786             mode = kCGBlendModeSourceOut;
1787             break;
1788         case wxCOMPOSITION_ATOP:
1789             mode = kCGBlendModeSourceAtop;
1790             break;
1791         case wxCOMPOSITION_DEST_OVER:
1792             mode = kCGBlendModeDestinationOver;
1793             break;
1794         case wxCOMPOSITION_DEST_IN:
1795             mode = kCGBlendModeDestinationIn;
1796             break;
1797         case wxCOMPOSITION_DEST_OUT:
1798             mode = kCGBlendModeDestinationOut;
1799             break;
1800         case wxCOMPOSITION_DEST_ATOP:
1801            mode = kCGBlendModeDestinationAtop;
1802             break;
1803         case wxCOMPOSITION_XOR:
1804             mode = kCGBlendModeXOR;
1805             break;
1806
1807         case wxCOMPOSITION_ADD:
1808             mode = kCGBlendModePlusLighter ;
1809             break;
1810         default:
1811             return false;
1812         }
1813         CGContextSetBlendMode(m_cgContext, mode);
1814     }
1815 #endif
1816     return true;
1817 }
1818
1819 void wxMacCoreGraphicsContext::BeginLayer(wxDouble opacity)
1820 {
1821     CGContextSaveGState(m_cgContext);
1822     CGContextSetAlpha(m_cgContext, (CGFloat) opacity);
1823     CGContextBeginTransparencyLayer(m_cgContext, 0);
1824 }
1825
1826 void wxMacCoreGraphicsContext::EndLayer()
1827 {
1828     CGContextEndTransparencyLayer(m_cgContext);
1829     CGContextRestoreGState(m_cgContext);
1830 }
1831
1832 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1833 {
1834 #if wxOSX_USE_COCOA_OR_CARBON
1835     if( m_cgContext )
1836     {
1837         wxCFRef<HIShapeRef> shape = wxCFRefFromGet(region.GetWXHRGN());
1838         // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1839         if ( HIShapeIsEmpty(shape))
1840         {
1841             CGRect empty = CGRectMake( 0,0,0,0 );
1842             CGContextClipToRect( m_cgContext, empty );
1843         }
1844         else
1845         {
1846             HIShapeReplacePathInCGContext( shape, m_cgContext );
1847             CGContextClip( m_cgContext );
1848         }
1849     }
1850     else
1851     {
1852         // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1853         // to regions we try at least to have correct translations
1854         HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1855
1856         CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1857         HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1858         m_clipRgn.reset(mutableShape);
1859     }
1860 #else
1861     // allow usage as measuring context
1862     // wxASSERT_MSG( m_cgContext != NULL, "Needs a valid context for clipping" );
1863 #endif
1864 }
1865
1866 // clips drawings to the rect
1867 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1868 {
1869     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1870     if ( m_cgContext )
1871     {
1872         CGContextClipToRect( m_cgContext, r );
1873     }
1874     else
1875     {
1876 #if wxOSX_USE_COCOA_OR_CARBON
1877         // the clipping itself must be stored as device coordinates, otherwise
1878         // we cannot apply it back correctly
1879         r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
1880         m_clipRgn.reset(HIShapeCreateWithRect(&r));
1881 #else
1882     // allow usage as measuring context
1883     // wxFAIL_MSG( "Needs a valid context for clipping" );
1884 #endif
1885     }
1886 }
1887
1888     // resets the clipping to original extent
1889 void wxMacCoreGraphicsContext::ResetClip()
1890 {
1891     if ( m_cgContext )
1892     {
1893         // there is no way for clearing the clip, we can only revert to the stored
1894         // state, but then we have to make sure everything else is NOT restored
1895         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1896         CGContextRestoreGState( m_cgContext );
1897         CGContextSaveGState( m_cgContext );
1898         CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
1899         transformNew = CGAffineTransformInvert( transformNew ) ;
1900         CGContextConcatCTM( m_cgContext, transformNew);
1901         CGContextConcatCTM( m_cgContext, transform);
1902     }
1903     else
1904     {
1905 #if wxOSX_USE_COCOA_OR_CARBON
1906         m_clipRgn.reset();
1907 #else
1908     // allow usage as measuring context
1909     // wxFAIL_MSG( "Needs a valid context for clipping" );
1910 #endif
1911     }
1912 }
1913
1914 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1915 {
1916     if ( m_pen.IsNull() )
1917         return ;
1918
1919     if (EnsureIsValid()==false)
1920         return;
1921
1922     if (m_composition == wxCOMPOSITION_DEST)
1923         return;
1924
1925     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1926
1927     ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1928     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1929     CGContextStrokePath( m_cgContext );
1930 }
1931
1932 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1933 {
1934     if (EnsureIsValid()==false)
1935         return;
1936
1937     if (m_composition == wxCOMPOSITION_DEST)
1938         return;
1939
1940     if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1941     {
1942         // when using shading, we cannot draw pen and brush at the same time
1943         // revert to the base implementation of first filling and then stroking
1944         wxGraphicsContext::DrawPath( path, fillStyle );
1945         return;
1946     }
1947
1948     CGPathDrawingMode mode = kCGPathFill ;
1949     if ( m_brush.IsNull() )
1950     {
1951         if ( m_pen.IsNull() )
1952             return;
1953         else
1954             mode = kCGPathStroke;
1955     }
1956     else
1957     {
1958         if ( m_pen.IsNull() )
1959         {
1960             if ( fillStyle == wxODDEVEN_RULE )
1961                 mode = kCGPathEOFill;
1962             else
1963                 mode = kCGPathFill;
1964         }
1965         else
1966         {
1967             if ( fillStyle == wxODDEVEN_RULE )
1968                 mode = kCGPathEOFillStroke;
1969             else
1970                 mode = kCGPathFillStroke;
1971         }
1972     }
1973
1974     if ( !m_brush.IsNull() )
1975         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1976     if ( !m_pen.IsNull() )
1977         ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1978
1979     wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1980
1981     CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1982     CGContextDrawPath( m_cgContext , mode );
1983 }
1984
1985 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1986 {
1987     if ( m_brush.IsNull() )
1988         return;
1989
1990     if (EnsureIsValid()==false)
1991         return;
1992
1993     if (m_composition == wxCOMPOSITION_DEST)
1994         return;
1995
1996     if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1997     {
1998         CGContextSaveGState( m_cgContext );
1999         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2000         CGContextClip( m_cgContext );
2001         CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2002         CGContextRestoreGState( m_cgContext);
2003     }
2004     else
2005     {
2006         ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2007         CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2008         if ( fillStyle == wxODDEVEN_RULE )
2009             CGContextEOFillPath( m_cgContext );
2010         else
2011             CGContextFillPath( m_cgContext );
2012     }
2013 }
2014
2015 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
2016 {
2017     // we allow either setting or clearing but not replacing
2018     wxASSERT( m_cgContext == NULL || cg == NULL );
2019
2020     if ( m_cgContext )
2021     {
2022         CGContextRestoreGState( m_cgContext );
2023         CGContextRestoreGState( m_cgContext );
2024         if ( m_contextSynthesized )
2025         {
2026             // TODO: in case of performance problems, try issuing this not too
2027             // frequently (half of refresh rate)
2028             CGContextFlush(m_cgContext);
2029 #if wxOSX_USE_CARBON
2030             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
2031 #endif
2032 #if wxOSX_USE_COCOA
2033             wxOSXUnlockFocus(m_view);
2034 #endif
2035         }
2036         else
2037             CGContextRelease(m_cgContext);
2038     }
2039
2040     m_cgContext = cg;
2041
2042     // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
2043     // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
2044     // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
2045     // for this one operation.
2046
2047     // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
2048     // can be removed.
2049     if (m_cgContext)
2050     {
2051         CGContextRetain(m_cgContext);
2052         CGContextSaveGState( m_cgContext );
2053         CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
2054         CGContextSaveGState( m_cgContext );
2055         m_contextSynthesized = false;
2056     }
2057 }
2058
2059 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
2060 {
2061     if ( m_cgContext )
2062         CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
2063     else
2064         m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
2065 }
2066
2067 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
2068 {
2069     if ( m_cgContext )
2070         CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
2071     else
2072         m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
2073 }
2074
2075 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
2076 {
2077     if ( m_cgContext )
2078         CGContextRotateCTM( m_cgContext , (CGFloat) angle );
2079     else
2080         m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
2081 }
2082
2083 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2084 {
2085     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
2086     DrawBitmap(bitmap, x, y, w, h);
2087 }
2088
2089 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2090 {
2091     if (EnsureIsValid()==false)
2092         return;
2093
2094     if (m_composition == wxCOMPOSITION_DEST)
2095         return;
2096
2097 #ifdef __WXMAC__
2098     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2099     CGImageRef image = refdata->GetBitmap();
2100     CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2101     if ( refdata->IsMonochrome() == 1 )
2102     {
2103         // is is a mask, the '1' in the mask tell where to draw the current brush
2104         if (  !m_brush.IsNull() )
2105         {
2106             if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2107             {
2108                 // TODO clip to mask
2109             /*
2110                 CGContextSaveGState( m_cgContext );
2111                 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2112                 CGContextClip( m_cgContext );
2113                 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2114                 CGContextRestoreGState( m_cgContext);
2115             */
2116             }
2117             else
2118             {
2119                 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2120                 wxMacDrawCGImage( m_cgContext , &r , image );
2121             }
2122         }
2123     }
2124     else
2125     {
2126         wxMacDrawCGImage( m_cgContext , &r , image );
2127     }
2128 #endif
2129 }
2130
2131 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2132 {
2133     if (EnsureIsValid()==false)
2134         return;
2135
2136     if (m_composition == wxCOMPOSITION_DEST)
2137         return;
2138
2139     CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
2140     CGContextSaveGState( m_cgContext );
2141     CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
2142     CGContextScaleCTM( m_cgContext, 1, -1 );
2143 #if wxOSX_USE_COCOA_OR_CARBON
2144     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
2145         NULL , kPlotIconRefNormalFlags , icon.GetHICON() );
2146 #endif
2147     CGContextRestoreGState( m_cgContext );
2148 }
2149
2150 void wxMacCoreGraphicsContext::PushState()
2151 {
2152     if (EnsureIsValid()==false)
2153         return;
2154
2155     CGContextSaveGState( m_cgContext );
2156 }
2157
2158 void wxMacCoreGraphicsContext::PopState()
2159 {
2160     if (EnsureIsValid()==false)
2161         return;
2162
2163     CGContextRestoreGState( m_cgContext );
2164 }
2165
2166 void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDouble y )
2167 {
2168     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2169
2170     if (EnsureIsValid()==false)
2171         return;
2172
2173     if (m_composition == wxCOMPOSITION_DEST)
2174         return;
2175
2176 #if wxOSX_USE_CORE_TEXT
2177     if ( UMAGetSystemVersion() >= 0x1050 )
2178     {
2179         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2180         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2181         CTFontRef font = fref->OSXGetCTFont();
2182         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2183         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
2184         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
2185          CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
2186         CFTypeRef values[] = { font, col, underlined };
2187         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2188                                                         WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2189         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2190         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2191
2192         y += CTFontGetAscent(font);
2193
2194         CGContextSaveGState(m_cgContext);
2195         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2196         CGContextScaleCTM(m_cgContext, 1, -1);
2197         CGContextSetTextPosition(m_cgContext, 0, 0);
2198         CTLineDraw( line, m_cgContext );
2199         CGContextRestoreGState(m_cgContext);
2200         CFRelease( col );
2201         return;
2202     }
2203 #endif
2204 #if wxOSX_USE_ATSU_TEXT
2205     {
2206         DrawText(str, x, y, 0.0);
2207         return;
2208     }
2209 #endif
2210 #if wxOSX_USE_IPHONE
2211     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2212
2213     CGContextSaveGState(m_cgContext);
2214
2215     CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2216     CGContextSetTextDrawingMode (m_cgContext, kCGTextFill);
2217     CGContextSetFillColorWithColor( m_cgContext, col );
2218
2219     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2220     DrawTextInContext( m_cgContext, CGPointMake( x, y ), fref->GetUIFont() , text.AsNSString() );
2221
2222     CGContextRestoreGState(m_cgContext);
2223     CFRelease( col );
2224 #endif
2225 }
2226
2227 void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
2228                                                  wxDouble x, wxDouble y,
2229                                                  wxDouble angle)
2230 {
2231     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2232
2233     if (EnsureIsValid()==false)
2234         return;
2235
2236     if (m_composition == wxCOMPOSITION_DEST)
2237         return;
2238
2239 #if wxOSX_USE_CORE_TEXT
2240     if ( UMAGetSystemVersion() >= 0x1050 )
2241     {
2242         // default implementation takes care of rotation and calls non rotated DrawText afterwards
2243         wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2244         return;
2245     }
2246 #endif
2247 #if wxOSX_USE_ATSU_TEXT
2248     {
2249         OSStatus status = noErr;
2250         ATSUTextLayout atsuLayout;
2251         wxMacUniCharBuffer unibuf( str );
2252         UniCharCount chars = unibuf.GetChars();
2253
2254         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2255         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2256                                                    &chars , &style , &atsuLayout );
2257
2258         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
2259
2260         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2261         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2262
2263         int iAngle = int( angle * RAD2DEG );
2264         if ( abs(iAngle) > 0 )
2265         {
2266             Fixed atsuAngle = IntToFixed( iAngle );
2267             ATSUAttributeTag atsuTags[] =
2268             {
2269                 kATSULineRotationTag ,
2270             };
2271             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2272             {
2273                 sizeof( Fixed ) ,
2274             };
2275             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2276             {
2277                 &atsuAngle ,
2278             };
2279             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
2280                                              atsuTags, atsuSizes, atsuValues );
2281         }
2282
2283         {
2284             ATSUAttributeTag atsuTags[] =
2285             {
2286                 kATSUCGContextTag ,
2287             };
2288             ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2289             {
2290                 sizeof( CGContextRef ) ,
2291             };
2292             ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2293             {
2294                 &m_cgContext ,
2295             };
2296             status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
2297                                              atsuTags, atsuSizes, atsuValues );
2298         }
2299
2300         ATSUTextMeasurement textBefore, textAfter;
2301         ATSUTextMeasurement ascent, descent;
2302
2303         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2304                                             &textBefore , &textAfter, &ascent , &descent );
2305
2306         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2307
2308         Rect rect;
2309         x += (int)(sin(angle) * FixedToInt(ascent));
2310         y += (int)(cos(angle) * FixedToInt(ascent));
2311
2312         status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2313                                         IntToFixed(x) , IntToFixed(y) , &rect );
2314         wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2315
2316         CGContextSaveGState(m_cgContext);
2317         CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2318         CGContextScaleCTM(m_cgContext, 1, -1);
2319         status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2320                                 IntToFixed(0) , IntToFixed(0) );
2321
2322         wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2323
2324         CGContextRestoreGState(m_cgContext);
2325
2326         ::ATSUDisposeTextLayout(atsuLayout);
2327
2328         return;
2329     }
2330 #endif
2331 #if wxOSX_USE_IPHONE
2332     // default implementation takes care of rotation and calls non rotated DrawText afterwards
2333     wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2334 #endif
2335 }
2336
2337 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2338                             wxDouble *descent, wxDouble *externalLeading ) const
2339 {
2340     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::GetTextExtent - no valid font set") );
2341
2342     if ( width )
2343         *width = 0;
2344     if ( height )
2345         *height = 0;
2346     if ( descent )
2347         *descent = 0;
2348     if ( externalLeading )
2349         *externalLeading = 0;
2350
2351     if (str.empty())
2352         return;
2353
2354 #if wxOSX_USE_CORE_TEXT
2355     if ( UMAGetSystemVersion() >= 0x1050 )
2356     {
2357         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2358         CTFontRef font = fref->OSXGetCTFont();
2359
2360         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2361         CFStringRef keys[] = { kCTFontAttributeName  };
2362         CFTypeRef values[] = { font };
2363         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2364                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2365         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2366         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2367
2368         double w;
2369         CGFloat a, d, l;
2370
2371         w = CTLineGetTypographicBounds(line, &a, &d, &l) ;
2372
2373         if ( height )
2374             *height = a+d+l;
2375         if ( descent )
2376             *descent = d;
2377         if ( externalLeading )
2378             *externalLeading = l;
2379         if ( width )
2380             *width = w;
2381         return;
2382     }
2383 #endif
2384 #if wxOSX_USE_ATSU_TEXT
2385     {
2386         OSStatus status = noErr;
2387
2388         ATSUTextLayout atsuLayout;
2389         wxMacUniCharBuffer unibuf( str );
2390         UniCharCount chars = unibuf.GetChars();
2391
2392         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2393         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2394                                                    &chars , &style , &atsuLayout );
2395
2396         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2397
2398         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2399         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2400
2401         ATSUTextMeasurement textBefore, textAfter;
2402         ATSUTextMeasurement textAscent, textDescent;
2403
2404         status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2405                                             &textBefore , &textAfter, &textAscent , &textDescent );
2406
2407         if ( height )
2408             *height = FixedToInt(textAscent + textDescent);
2409         if ( descent )
2410             *descent = FixedToInt(textDescent);
2411         if ( externalLeading )
2412             *externalLeading = 0;
2413         if ( width )
2414             *width = FixedToInt(textAfter - textBefore);
2415
2416         ::ATSUDisposeTextLayout(atsuLayout);
2417
2418         return;
2419     }
2420 #endif
2421 #if wxOSX_USE_IPHONE
2422     wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2423
2424     wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2425     CGSize sz = MeasureTextInContext( fref->GetUIFont() , text.AsNSString() );
2426
2427     if ( height )
2428         *height = sz.height;
2429         /*
2430     if ( descent )
2431         *descent = FixedToInt(textDescent);
2432     if ( externalLeading )
2433         *externalLeading = 0;
2434         */
2435     if ( width )
2436         *width = sz.width;
2437 #endif
2438 }
2439
2440 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2441 {
2442     widths.Empty();
2443     widths.Add(0, text.length());
2444
2445     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2446
2447     if (text.empty())
2448         return;
2449
2450 #if wxOSX_USE_CORE_TEXT
2451     {
2452         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2453         CTFontRef font = fref->OSXGetCTFont();
2454
2455         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2456         CFStringRef keys[] = { kCTFontAttributeName  };
2457         CFTypeRef values[] = { font };
2458         wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2459                                                                 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2460         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2461         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2462
2463         int chars = text.length();
2464         for ( int pos = 0; pos < (int)chars; pos ++ )
2465         {
2466             widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5;
2467         }
2468
2469         return;
2470     }
2471 #endif
2472 #if wxOSX_USE_ATSU_TEXT
2473     {
2474         OSStatus status = noErr;
2475         ATSUTextLayout atsuLayout;
2476         wxMacUniCharBuffer unibuf( text );
2477         UniCharCount chars = unibuf.GetChars();
2478
2479         ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2480         status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2481                                           &chars , &style , &atsuLayout );
2482
2483         wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2484
2485         status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2486         wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2487
2488 // new implementation from JS, keep old one just in case
2489 #if 0
2490         for ( int pos = 0; pos < (int)chars; pos ++ )
2491         {
2492             unsigned long actualNumberOfBounds = 0;
2493             ATSTrapezoid glyphBounds;
2494
2495             // We get a single bound, since the text should only require one. If it requires more, there is an issue
2496             OSStatus result;
2497             result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2498                                         kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2499             if (result != noErr || actualNumberOfBounds != 1 )
2500                 return;
2501
2502             widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2503             //unsigned char uch = s[i];
2504         }
2505 #else
2506         ATSLayoutRecord *layoutRecords = NULL;
2507         ItemCount glyphCount = 0;
2508
2509         // Get the glyph extents
2510         OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2511                                                                        0,
2512                                                                        kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2513                                                                        (void **)
2514                                                                        &layoutRecords,
2515                                                                        &glyphCount);
2516         wxASSERT(glyphCount == (text.length()+1));
2517
2518         if ( err == noErr && glyphCount == (text.length()+1))
2519         {
2520             for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2521             {
2522                 widths[pos-1] = FixedToInt( layoutRecords[pos].realPos );
2523             }
2524         }
2525
2526         ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2527                                               kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2528                                               (void **) &layoutRecords);
2529 #endif
2530         ::ATSUDisposeTextLayout(atsuLayout);
2531     }
2532 #endif
2533 #if wxOSX_USE_IPHONE
2534     // TODO core graphics text implementation here
2535 #endif
2536 }
2537
2538 void * wxMacCoreGraphicsContext::GetNativeContext()
2539 {
2540     return m_cgContext;
2541 }
2542
2543 // concatenates this transform with the current transform of this context
2544 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2545 {
2546     if ( m_cgContext )
2547         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2548     else
2549         m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
2550 }
2551
2552 // sets the transform of this context
2553 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2554 {
2555     if ( m_cgContext )
2556     {
2557         CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2558         transform = CGAffineTransformInvert( transform ) ;
2559         CGContextConcatCTM( m_cgContext, transform);
2560         CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2561     }
2562     else
2563     {
2564         m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2565     }
2566 }
2567
2568 // gets the matrix of this context
2569 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2570 {
2571     wxGraphicsMatrix m = CreateMatrix();
2572     *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2573         CGContextGetCTM( m_cgContext ));
2574     return m;
2575 }
2576
2577 //
2578 // Renderer
2579 //
2580
2581 //-----------------------------------------------------------------------------
2582 // wxMacCoreGraphicsRenderer declaration
2583 //-----------------------------------------------------------------------------
2584
2585 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2586 {
2587 public :
2588     wxMacCoreGraphicsRenderer() {}
2589
2590     virtual ~wxMacCoreGraphicsRenderer() {}
2591
2592     // Context
2593
2594     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2595     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2596 #if wxUSE_PRINTING_ARCHITECTURE
2597     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2598 #endif
2599
2600     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2601
2602     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2603
2604     virtual wxGraphicsContext * CreateContext( wxWindow* window );
2605
2606     virtual wxGraphicsContext * CreateMeasuringContext();
2607
2608     // Path
2609
2610     virtual wxGraphicsPath CreatePath();
2611
2612     // Matrix
2613
2614     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2615         wxDouble tx=0.0, wxDouble ty=0.0);
2616
2617
2618     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2619
2620     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2621
2622     // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2623     virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2624         const wxColour&c1, const wxColour&c2) ;
2625
2626     // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2627     // with radius r and color cColor
2628     virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2629         const wxColour &oColor, const wxColour &cColor) ;
2630
2631    // sets the font
2632     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2633
2634     // create a native bitmap representation
2635     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2636
2637     // create a native bitmap representation
2638     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
2639 private :
2640     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2641 } ;
2642
2643 //-----------------------------------------------------------------------------
2644 // wxMacCoreGraphicsRenderer implementation
2645 //-----------------------------------------------------------------------------
2646
2647 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2648
2649 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2650
2651 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2652 {
2653     return &gs_MacCoreGraphicsRenderer;
2654 }
2655
2656 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2657 {
2658     const wxDCImpl* impl = dc.GetImpl();
2659     wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2660     if (win_impl)
2661     {
2662         int w, h;
2663         win_impl->GetSize( &w, &h );
2664         CGContextRef cgctx = 0;
2665
2666         wxASSERT_MSG(win_impl->GetWindow(), "Invalid wxWindow in wxMacCoreGraphicsRenderer::CreateContext");
2667         if (win_impl->GetWindow())
2668             cgctx =  (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2669
2670         if (cgctx != 0)
2671             return new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2672     }
2673     return NULL;
2674 }
2675
2676 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2677 {
2678 #ifdef __WXMAC__
2679     const wxDCImpl* impl = dc.GetImpl();
2680     wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2681     if (mem_impl)
2682     {
2683         int w, h;
2684         mem_impl->GetSize( &w, &h );
2685         return new wxMacCoreGraphicsContext( this,
2686             (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2687     }
2688 #endif
2689     return NULL;
2690 }
2691
2692 #if wxUSE_PRINTING_ARCHITECTURE
2693 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2694 {
2695 #ifdef __WXMAC__
2696     const wxDCImpl* impl = dc.GetImpl();
2697     wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2698     if (print_impl)
2699     {
2700         int w, h;
2701         print_impl->GetSize( &w, &h );
2702         return new wxMacCoreGraphicsContext( this,
2703             (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2704     }
2705 #endif
2706     return NULL;
2707 }
2708 #endif
2709
2710 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2711 {
2712     return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2713 }
2714
2715 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2716 {
2717 #if wxOSX_USE_CARBON
2718     return new wxMacCoreGraphicsContext(this,(WindowRef)window);
2719 #else
2720     wxUnusedVar(window);
2721     return NULL;
2722 #endif
2723 }
2724
2725 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
2726 {
2727     return new wxMacCoreGraphicsContext(this, window );
2728 }
2729
2730 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
2731 {
2732     return new wxMacCoreGraphicsContext(this);
2733 }
2734
2735 // Path
2736
2737 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
2738 {
2739     wxGraphicsPath m;
2740     m.SetRefData( new wxMacCoreGraphicsPathData(this));
2741     return m;
2742 }
2743
2744
2745 // Matrix
2746
2747 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
2748     wxDouble tx, wxDouble ty)
2749 {
2750     wxGraphicsMatrix m;
2751     wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
2752     data->Set( a,b,c,d,tx,ty ) ;
2753     m.SetRefData(data);
2754     return m;
2755 }
2756
2757 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
2758 {
2759     if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
2760         return wxNullGraphicsPen;
2761     else
2762     {
2763         wxGraphicsPen p;
2764         p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
2765         return p;
2766     }
2767 }
2768
2769 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
2770 {
2771     if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
2772         return wxNullGraphicsBrush;
2773     else
2774     {
2775         wxGraphicsBrush p;
2776         p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
2777         return p;
2778     }
2779 }
2780
2781 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
2782 {
2783     if ( bmp.Ok() )
2784     {
2785         wxGraphicsBitmap p;
2786 #ifdef __WXMAC__
2787         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
2788 #endif
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 }