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[wxWidgets.git] / src / osx / carbon / graphics.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/osx/carbon/dccg.cpp
3 // Purpose: wxDC class
4 // Author: Stefan Csomor
5 // Modified by:
6 // Created: 01/02/97
7 // RCS-ID: $Id$
8 // copyright: (c) Stefan Csomor
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #include "wx/wxprec.h"
13
14 #include "wx/graphics.h"
15 #include "wx/private/graphics.h"
16
17 #ifndef WX_PRECOMP
18 #include "wx/dcclient.h"
19 #include "wx/dcmemory.h"
20 #include "wx/dcprint.h"
21 #include "wx/log.h"
22 #include "wx/region.h"
23 #include "wx/image.h"
24 #include "wx/icon.h"
25 #endif
26
27
28 #ifdef __MSL__
29 #if __MSL__ >= 0x6000
30 #include "math.h"
31 // in case our functions were defined outside std, we make it known all the same
32 namespace std { }
33 using namespace std;
34 #endif
35 #endif
36
37 #ifdef __WXMAC__
38 #include "wx/osx/private.h"
39 #include "wx/osx/dcprint.h"
40 #include "wx/osx/dcclient.h"
41 #include "wx/osx/dcmemory.h"
42 #include "wx/osx/private.h"
43 #else
44 #include "CoreServices/CoreServices.h"
45 #include "ApplicationServices/ApplicationServices.h"
46 #include "wx/osx/core/cfstring.h"
47 #include "wx/cocoa/dcclient.h"
48 #endif
49
50 #ifdef __WXCOCOA__
51
52 CGColorSpaceRef wxMacGetGenericRGBColorSpace()
53 {
54 static wxCFRef<CGColorSpaceRef> genericRGBColorSpace;
55
56 if (genericRGBColorSpace == NULL)
57 {
58 genericRGBColorSpace.reset( CGColorSpaceCreateWithName( kCGColorSpaceGenericRGB ) );
59 }
60
61 return genericRGBColorSpace;
62 }
63
64 int UMAGetSystemVersion()
65 {
66 return 0x1050;
67 }
68
69
70 #define wxOSX_USE_CORE_TEXT 1
71
72 #endif
73
74 #if wxOSX_USE_COCOA_OR_IPHONE
75 extern CGContextRef wxOSXGetContextFromCurrentContext() ;
76 #if wxOSX_USE_COCOA
77 extern bool wxOSXLockFocus( WXWidget view) ;
78 extern void wxOSXUnlockFocus( WXWidget view) ;
79 #endif
80 #endif
81
82 #if 1 // MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
83
84 // TODO test whether this private API also works under 10.3
85
86 // copying values from NSCompositingModes (see also webkit and cairo sources)
87
88 typedef enum CGCompositeOperation {
89 kCGCompositeOperationClear = 0,
90 kCGCompositeOperationCopy = 1,
91 kCGCompositeOperationSourceOver = 2,
92 kCGCompositeOperationSourceIn = 3,
93 kCGCompositeOperationSourceOut = 4,
94 kCGCompositeOperationSourceAtop = 5,
95 kCGCompositeOperationDestinationOver = 6,
96 kCGCompositeOperationDestinationIn = 7,
97 kCGCompositeOperationDestinationOut = 8,
98 kCGCompositeOperationDestinationAtop = 9,
99 kCGCompositeOperationXOR = 10,
100 kCGCompositeOperationPlusDarker = 11,
101 // NS only, unsupported by CG : Highlight
102 kCGCompositeOperationPlusLighter = 12
103 } CGCompositeOperation ;
104
105 extern "C"
106 {
107 CG_EXTERN void CGContextSetCompositeOperation (CGContextRef context, int operation);
108 } ;
109
110 #endif
111
112 //-----------------------------------------------------------------------------
113 // constants
114 //-----------------------------------------------------------------------------
115
116 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
117 #ifndef M_PI
118 const double M_PI = 3.14159265358979;
119 #endif
120 #endif
121
122 static const double RAD2DEG = 180.0 / M_PI;
123
124 //
125 // Pen, Brushes and Fonts
126 //
127
128 #pragma mark -
129 #pragma mark wxMacCoreGraphicsPattern, ImagePattern, HatchPattern classes
130
131 OSStatus wxMacDrawCGImage(
132 CGContextRef inContext,
133 const CGRect * inBounds,
134 CGImageRef inImage)
135 {
136 #if wxOSX_USE_CARBON
137 return HIViewDrawCGImage( inContext, inBounds, inImage );
138 #else
139 CGContextSaveGState(inContext);
140 CGContextTranslateCTM(inContext, inBounds->origin.x, inBounds->origin.y + inBounds->size.height);
141 CGRect r = *inBounds;
142 r.origin.x = r.origin.y = 0;
143 CGContextScaleCTM(inContext, 1, -1);
144 CGContextDrawImage(inContext, r, inImage );
145 CGContextRestoreGState(inContext);
146 return noErr;
147 #endif
148 }
149
150 CGColorRef wxMacCreateCGColor( const wxColour& col )
151 {
152 CGColorRef retval = 0;
153 #ifdef __WXMAC__
154 retval = col.CreateCGColor();
155 #else
156 // TODO add conversion NSColor - CGColorRef (obj-c)
157 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
158 if ( CGColorCreateGenericRGB )
159 retval = CGColorCreateGenericRGB( col.Red() / 255.0 , col.Green() / 255.0, col.Blue() / 255.0, col.Alpha() / 255.0 );
160 else
161 #endif
162 {
163 CGFloat components[4] = { col.Red() / 255.0, col.Green() / 255.0, col.Blue() / 255.0, col.Alpha() / 255.0 } ;
164 retval = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
165 }
166
167 #endif
168 return retval;
169 }
170
171 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 && wxOSX_USE_CORE_TEXT
172
173 CTFontRef wxMacCreateCTFont( const wxFont& font )
174 {
175 #ifdef __WXMAC__
176 return wxCFRetain((CTFontRef) font.OSXGetCTFont());
177 #else
178 return CTFontCreateWithName( wxCFStringRef( font.GetFaceName(), wxLocale::GetSystemEncoding() ) , font.GetPointSize() , NULL );
179 #endif
180 }
181
182 #endif
183
184 // CGPattern wrapper class: always allocate on heap, never call destructor
185
186 class wxMacCoreGraphicsPattern
187 {
188 public :
189 wxMacCoreGraphicsPattern() {}
190
191 // is guaranteed to be called only with a non-Null CGContextRef
192 virtual void Render( CGContextRef ctxRef ) = 0;
193
194 operator CGPatternRef() const { return m_patternRef; }
195
196 protected :
197 virtual ~wxMacCoreGraphicsPattern()
198 {
199 // as this is called only when the m_patternRef is been released;
200 // don't release it again
201 }
202
203 static void _Render( void *info, CGContextRef ctxRef )
204 {
205 wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
206 if ( self && ctxRef )
207 self->Render( ctxRef );
208 }
209
210 static void _Dispose( void *info )
211 {
212 wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
213 delete self;
214 }
215
216 CGPatternRef m_patternRef;
217
218 static const CGPatternCallbacks ms_Callbacks;
219 };
220
221 const CGPatternCallbacks wxMacCoreGraphicsPattern::ms_Callbacks = { 0, &wxMacCoreGraphicsPattern::_Render, &wxMacCoreGraphicsPattern::_Dispose };
222
223 class ImagePattern : public wxMacCoreGraphicsPattern
224 {
225 public :
226 ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
227 {
228 wxASSERT( bmp && bmp->Ok() );
229 #ifdef __WXMAC__
230 Init( (CGImageRef) bmp->CreateCGImage() , transform );
231 #endif
232 }
233
234 // ImagePattern takes ownership of CGImageRef passed in
235 ImagePattern( CGImageRef image , const CGAffineTransform& transform )
236 {
237 if ( image )
238 CFRetain( image );
239
240 Init( image , transform );
241 }
242
243 virtual void Render( CGContextRef ctxRef )
244 {
245 if (m_image != NULL)
246 wxMacDrawCGImage( ctxRef, &m_imageBounds, m_image );
247 }
248
249 protected :
250 void Init( CGImageRef image, const CGAffineTransform& transform )
251 {
252 m_image = image;
253 if ( m_image )
254 {
255 m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) );
256 m_patternRef = CGPatternCreate(
257 this , m_imageBounds, transform ,
258 m_imageBounds.size.width, m_imageBounds.size.height,
259 kCGPatternTilingNoDistortion, true , &wxMacCoreGraphicsPattern::ms_Callbacks );
260 }
261 }
262
263 virtual ~ImagePattern()
264 {
265 if ( m_image )
266 CGImageRelease( m_image );
267 }
268
269 CGImageRef m_image;
270 CGRect m_imageBounds;
271 };
272
273 class HatchPattern : public wxMacCoreGraphicsPattern
274 {
275 public :
276 HatchPattern( int hatchstyle, const CGAffineTransform& transform )
277 {
278 m_hatch = hatchstyle;
279 m_imageBounds = CGRectMake( (CGFloat) 0.0, (CGFloat) 0.0, (CGFloat) 8.0 , (CGFloat) 8.0 );
280 m_patternRef = CGPatternCreate(
281 this , m_imageBounds, transform ,
282 m_imageBounds.size.width, m_imageBounds.size.height,
283 kCGPatternTilingNoDistortion, false , &wxMacCoreGraphicsPattern::ms_Callbacks );
284 }
285
286 void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
287 {
288 CGContextStrokeLineSegments( ctxRef , pts , count );
289 }
290
291 virtual void Render( CGContextRef ctxRef )
292 {
293 switch ( m_hatch )
294 {
295 case wxBDIAGONAL_HATCH :
296 {
297 CGPoint pts[] =
298 {
299 { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
300 };
301 StrokeLineSegments( ctxRef , pts , 2 );
302 }
303 break;
304
305 case wxCROSSDIAG_HATCH :
306 {
307 CGPoint pts[] =
308 {
309 { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 } ,
310 { (CGFloat) 8.0 , (CGFloat) 0.0 } , { (CGFloat) 0.0 , (CGFloat) 8.0 }
311 };
312 StrokeLineSegments( ctxRef , pts , 4 );
313 }
314 break;
315
316 case wxFDIAGONAL_HATCH :
317 {
318 CGPoint pts[] =
319 {
320 { (CGFloat) 0.0 , (CGFloat) 0.0 } , { (CGFloat) 8.0 , (CGFloat) 8.0 }
321 };
322 StrokeLineSegments( ctxRef , pts , 2 );
323 }
324 break;
325
326 case wxCROSS_HATCH :
327 {
328 CGPoint pts[] =
329 {
330 { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
331 { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
332 };
333 StrokeLineSegments( ctxRef , pts , 4 );
334 }
335 break;
336
337 case wxHORIZONTAL_HATCH :
338 {
339 CGPoint pts[] =
340 {
341 { (CGFloat) 0.0 , (CGFloat) 4.0 } , { (CGFloat) 8.0 , (CGFloat) 4.0 } ,
342 };
343 StrokeLineSegments( ctxRef , pts , 2 );
344 }
345 break;
346
347 case wxVERTICAL_HATCH :
348 {
349 CGPoint pts[] =
350 {
351 { (CGFloat) 4.0 , (CGFloat) 0.0 } , { (CGFloat) 4.0 , (CGFloat) 8.0 } ,
352 };
353 StrokeLineSegments( ctxRef , pts , 2 );
354 }
355 break;
356
357 default:
358 break;
359 }
360 }
361
362 protected :
363 virtual ~HatchPattern() {}
364
365 CGRect m_imageBounds;
366 int m_hatch;
367 };
368
369 class wxMacCoreGraphicsPenData : public wxGraphicsObjectRefData
370 {
371 public:
372 wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
373 ~wxMacCoreGraphicsPenData();
374
375 void Init();
376 virtual void Apply( wxGraphicsContext* context );
377 virtual wxDouble GetWidth() { return m_width; }
378
379 protected :
380 CGLineCap m_cap;
381 wxCFRef<CGColorRef> m_color;
382 wxCFRef<CGColorSpaceRef> m_colorSpace;
383
384 CGLineJoin m_join;
385 CGFloat m_width;
386
387 int m_count;
388 const CGFloat *m_lengths;
389 CGFloat *m_userLengths;
390
391
392 bool m_isPattern;
393 wxCFRef<CGPatternRef> m_pattern;
394 CGFloat* m_patternColorComponents;
395 };
396
397 wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) :
398 wxGraphicsObjectRefData( renderer )
399 {
400 Init();
401
402 m_color.reset( wxMacCreateCGColor( pen.GetColour() ) ) ;
403
404 // TODO: * m_dc->m_scaleX
405 m_width = pen.GetWidth();
406 if (m_width <= 0.0)
407 m_width = (CGFloat) 0.1;
408
409 switch ( pen.GetCap() )
410 {
411 case wxCAP_ROUND :
412 m_cap = kCGLineCapRound;
413 break;
414
415 case wxCAP_PROJECTING :
416 m_cap = kCGLineCapSquare;
417 break;
418
419 case wxCAP_BUTT :
420 m_cap = kCGLineCapButt;
421 break;
422
423 default :
424 m_cap = kCGLineCapButt;
425 break;
426 }
427
428 switch ( pen.GetJoin() )
429 {
430 case wxJOIN_BEVEL :
431 m_join = kCGLineJoinBevel;
432 break;
433
434 case wxJOIN_MITER :
435 m_join = kCGLineJoinMiter;
436 break;
437
438 case wxJOIN_ROUND :
439 m_join = kCGLineJoinRound;
440 break;
441
442 default :
443 m_join = kCGLineJoinMiter;
444 break;
445 }
446
447 const CGFloat dashUnit = m_width < 1.0 ? (CGFloat) 1.0 : m_width;
448
449 const CGFloat dotted[] = { (CGFloat) dashUnit , (CGFloat) (dashUnit + 2.0) };
450 static const CGFloat short_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 };
451 static const CGFloat dashed[] = { (CGFloat) 19.0 , (CGFloat) 9.0 };
452 static const CGFloat dotted_dashed[] = { (CGFloat) 9.0 , (CGFloat) 6.0 , (CGFloat) 3.0 , (CGFloat) 3.0 };
453
454 switch ( pen.GetStyle() )
455 {
456 case wxPENSTYLE_SOLID:
457 break;
458
459 case wxPENSTYLE_DOT:
460 m_count = WXSIZEOF(dotted);
461 m_userLengths = new CGFloat[ m_count ] ;
462 memcpy( m_userLengths, dotted, sizeof(dotted) );
463 m_lengths = m_userLengths;
464 break;
465
466 case wxPENSTYLE_LONG_DASH:
467 m_count = WXSIZEOF(dashed);
468 m_lengths = dashed;
469 break;
470
471 case wxPENSTYLE_SHORT_DASH:
472 m_count = WXSIZEOF(short_dashed);
473 m_lengths = short_dashed;
474 break;
475
476 case wxPENSTYLE_DOT_DASH:
477 m_count = WXSIZEOF(dotted_dashed);
478 m_lengths = dotted_dashed;
479 break;
480
481 case wxPENSTYLE_USER_DASH:
482 wxDash *dashes;
483 m_count = pen.GetDashes( &dashes );
484 if ((dashes != NULL) && (m_count > 0))
485 {
486 m_userLengths = new CGFloat[m_count];
487 for ( int i = 0; i < m_count; ++i )
488 {
489 m_userLengths[i] = dashes[i] * dashUnit;
490
491 if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
492 m_userLengths[i] = (CGFloat) (dashUnit + 2.0);
493 else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
494 m_userLengths[i] = dashUnit;
495 }
496 }
497 m_lengths = m_userLengths;
498 break;
499
500 case wxPENSTYLE_STIPPLE:
501 {
502 wxBitmap* bmp = pen.GetStipple();
503 if ( bmp && bmp->Ok() )
504 {
505 m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
506 m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
507 m_patternColorComponents = new CGFloat[1] ;
508 m_patternColorComponents[0] = (CGFloat) 1.0;
509 m_isPattern = true;
510 }
511 }
512 break;
513
514 default :
515 {
516 m_isPattern = true;
517 m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
518 m_pattern.reset( (CGPatternRef) *( new HatchPattern( pen.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
519 m_patternColorComponents = new CGFloat[4] ;
520 m_patternColorComponents[0] = (CGFloat) (pen.GetColour().Red() / 255.0);
521 m_patternColorComponents[1] = (CGFloat) (pen.GetColour().Green() / 255.0);
522 m_patternColorComponents[2] = (CGFloat) (pen.GetColour().Blue() / 255.0);
523 m_patternColorComponents[3] = (CGFloat) (pen.GetColour().Alpha() / 255.0);
524 }
525 break;
526 }
527 if ((m_lengths != NULL) && (m_count > 0))
528 {
529 // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
530 m_cap = kCGLineCapButt;
531 }
532 }
533
534 wxMacCoreGraphicsPenData::~wxMacCoreGraphicsPenData()
535 {
536 delete[] m_userLengths;
537 delete[] m_patternColorComponents;
538 }
539
540 void wxMacCoreGraphicsPenData::Init()
541 {
542 m_lengths = NULL;
543 m_userLengths = NULL;
544 m_width = 0;
545 m_count = 0;
546 m_patternColorComponents = NULL;
547 m_isPattern = false;
548 }
549
550 void wxMacCoreGraphicsPenData::Apply( wxGraphicsContext* context )
551 {
552 CGContextRef cg = (CGContextRef) context->GetNativeContext();
553 CGContextSetLineWidth( cg , m_width );
554 CGContextSetLineJoin( cg , m_join );
555
556 CGContextSetLineDash( cg , 0 , m_lengths , m_count );
557 CGContextSetLineCap( cg , m_cap );
558
559 if ( m_isPattern )
560 {
561 CGAffineTransform matrix = CGContextGetCTM( cg );
562 CGContextSetPatternPhase( cg, CGSizeMake(matrix.tx, matrix.ty) );
563 CGContextSetStrokeColorSpace( cg , m_colorSpace );
564 CGContextSetStrokePattern( cg, m_pattern , m_patternColorComponents );
565 }
566 else
567 {
568 CGContextSetStrokeColorWithColor( cg , m_color );
569 }
570 }
571
572 //
573 // Brush
574 //
575
576 // make sure we all use one class for all conversions from wx to native colour
577
578 class wxMacCoreGraphicsColour
579 {
580 public:
581 wxMacCoreGraphicsColour();
582 wxMacCoreGraphicsColour(const wxBrush &brush);
583 ~wxMacCoreGraphicsColour();
584
585 void Apply( CGContextRef cgContext );
586 protected:
587 void Init();
588 wxCFRef<CGColorRef> m_color;
589 wxCFRef<CGColorSpaceRef> m_colorSpace;
590
591 bool m_isPattern;
592 wxCFRef<CGPatternRef> m_pattern;
593 CGFloat* m_patternColorComponents;
594 } ;
595
596 wxMacCoreGraphicsColour::~wxMacCoreGraphicsColour()
597 {
598 delete[] m_patternColorComponents;
599 }
600
601 void wxMacCoreGraphicsColour::Init()
602 {
603 m_isPattern = false;
604 m_patternColorComponents = NULL;
605 }
606
607 void wxMacCoreGraphicsColour::Apply( CGContextRef cgContext )
608 {
609 if ( m_isPattern )
610 {
611 CGAffineTransform matrix = CGContextGetCTM( cgContext );
612 CGContextSetPatternPhase( cgContext, CGSizeMake(matrix.tx, matrix.ty) );
613 CGContextSetFillColorSpace( cgContext , m_colorSpace );
614 CGContextSetFillPattern( cgContext, m_pattern , m_patternColorComponents );
615 }
616 else
617 {
618 CGContextSetFillColorWithColor( cgContext, m_color );
619 }
620 }
621
622 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour()
623 {
624 Init();
625 }
626
627 wxMacCoreGraphicsColour::wxMacCoreGraphicsColour( const wxBrush &brush )
628 {
629 Init();
630 if ( brush.GetStyle() == wxSOLID )
631 {
632 m_color.reset( wxMacCreateCGColor( brush.GetColour() ));
633 }
634 else if ( brush.IsHatch() )
635 {
636 m_isPattern = true;
637 m_colorSpace.reset( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
638 m_pattern.reset( (CGPatternRef) *( new HatchPattern( brush.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
639
640 m_patternColorComponents = new CGFloat[4] ;
641 m_patternColorComponents[0] = (CGFloat) (brush.GetColour().Red() / 255.0);
642 m_patternColorComponents[1] = (CGFloat) (brush.GetColour().Green() / 255.0);
643 m_patternColorComponents[2] = (CGFloat) (brush.GetColour().Blue() / 255.0);
644 m_patternColorComponents[3] = (CGFloat) (brush.GetColour().Alpha() / 255.0);
645 }
646 else
647 {
648 // now brush is a bitmap
649 wxBitmap* bmp = brush.GetStipple();
650 if ( bmp && bmp->Ok() )
651 {
652 m_isPattern = true;
653 m_patternColorComponents = new CGFloat[1] ;
654 m_patternColorComponents[0] = (CGFloat) 1.0;
655 m_colorSpace.reset( CGColorSpaceCreatePattern( NULL ) );
656 m_pattern.reset( (CGPatternRef) *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
657 }
658 }
659 }
660
661 class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
662 {
663 public:
664 wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
665 wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
666 ~wxMacCoreGraphicsBrushData ();
667
668 virtual void Apply( wxGraphicsContext* context );
669 void CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
670 wxDouble x2, wxDouble y2,
671 const wxGraphicsGradientStops& stops);
672 void CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
673 wxDouble xc, wxDouble yc, wxDouble radius,
674 const wxGraphicsGradientStops& stops);
675
676 virtual bool IsShading() { return m_isShading; }
677 CGShadingRef GetShading() { return m_shading; }
678 protected:
679 CGFunctionRef CreateGradientFunction(const wxGraphicsGradientStops& stops);
680
681 static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
682 virtual void Init();
683
684 wxMacCoreGraphicsColour m_cgColor;
685
686 bool m_isShading;
687 CGFunctionRef m_gradientFunction;
688 CGShadingRef m_shading;
689
690 // information about a single gradient component
691 struct GradientComponent
692 {
693 CGFloat pos;
694 CGFloat red;
695 CGFloat green;
696 CGFloat blue;
697 CGFloat alpha;
698 };
699
700 // and information about all of them
701 struct GradientComponents
702 {
703 GradientComponents()
704 {
705 count = 0;
706 comps = NULL;
707 }
708
709 void Init(unsigned count_)
710 {
711 count = count_;
712 comps = new GradientComponent[count];
713 }
714
715 ~GradientComponents()
716 {
717 delete [] comps;
718 }
719
720 unsigned count;
721 GradientComponent *comps;
722 };
723
724 GradientComponents m_gradientComponents;
725 };
726
727 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
728 {
729 Init();
730 }
731
732 void
733 wxMacCoreGraphicsBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
734 wxDouble x2, wxDouble y2,
735 const wxGraphicsGradientStops& stops)
736 {
737 m_gradientFunction = CreateGradientFunction(stops);
738 m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) x1, (CGFloat) y1),
739 CGPointMake((CGFloat) x2,(CGFloat) y2), m_gradientFunction, true, true ) ;
740 m_isShading = true ;
741 }
742
743 void
744 wxMacCoreGraphicsBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
745 wxDouble xc, wxDouble yc,
746 wxDouble radius,
747 const wxGraphicsGradientStops& stops)
748 {
749 m_gradientFunction = CreateGradientFunction(stops);
750 m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) xo,(CGFloat) yo), 0,
751 CGPointMake((CGFloat) xc,(CGFloat) yc), (CGFloat) radius, m_gradientFunction, true, true ) ;
752 m_isShading = true ;
753 }
754
755 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer ),
756 m_cgColor( brush )
757 {
758 Init();
759
760 }
761
762 wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
763 {
764 if ( m_shading )
765 CGShadingRelease(m_shading);
766
767 if( m_gradientFunction )
768 CGFunctionRelease(m_gradientFunction);
769 }
770
771 void wxMacCoreGraphicsBrushData::Init()
772 {
773 m_gradientFunction = NULL;
774 m_shading = NULL;
775 m_isShading = false;
776 }
777
778 void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
779 {
780 CGContextRef cg = (CGContextRef) context->GetNativeContext();
781
782 if ( m_isShading )
783 {
784 // nothing to set as shades are processed by clipping using the path and filling
785 }
786 else
787 {
788 m_cgColor.Apply( cg );
789 }
790 }
791
792 void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
793 {
794 const GradientComponents& stops = *(GradientComponents*) info ;
795
796 CGFloat f = *in;
797 if (f <= 0.0)
798 {
799 // Start
800 out[0] = stops.comps[0].red;
801 out[1] = stops.comps[1].green;
802 out[2] = stops.comps[2].blue;
803 out[3] = stops.comps[3].alpha;
804 }
805 else if (f >= 1.0)
806 {
807 // end
808 out[0] = stops.comps[stops.count - 1].red;
809 out[1] = stops.comps[stops.count - 1].green;
810 out[2] = stops.comps[stops.count - 1].blue;
811 out[3] = stops.comps[stops.count - 1].alpha;
812 }
813 else
814 {
815 // Find first component with position greater than f
816 unsigned i;
817 for ( i = 0; i < stops.count; i++ )
818 {
819 if (stops.comps[i].pos > f)
820 break;
821 }
822
823 // Interpolated between stops
824 CGFloat diff = (f - stops.comps[i-1].pos);
825 CGFloat range = (stops.comps[i].pos - stops.comps[i-1].pos);
826 CGFloat fact = diff / range;
827
828 out[0] = stops.comps[i - 1].red + (stops.comps[i].red - stops.comps[i - 1].red) * fact;
829 out[0] = stops.comps[i - 1].green + (stops.comps[i].green - stops.comps[i - 1].green) * fact;
830 out[0] = stops.comps[i - 1].blue + (stops.comps[i].blue - stops.comps[i - 1].blue) * fact;
831 out[0] = stops.comps[i - 1].alpha + (stops.comps[i].alpha - stops.comps[i - 1].alpha) * fact;
832 }
833 }
834
835 CGFunctionRef
836 wxMacCoreGraphicsBrushData::CreateGradientFunction(const wxGraphicsGradientStops& stops)
837 {
838
839 static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL };
840 static const CGFloat input_value_range [2] = { 0, 1 };
841 static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 };
842
843 m_gradientComponents.Init(stops.GetCount());
844 for ( unsigned i = 0; i < m_gradientComponents.count; i++ )
845 {
846 const wxGraphicsGradientStop stop = stops.Item(i);
847
848 m_gradientComponents.comps[i].pos = stop.GetPosition();
849
850 const wxColour col = stop.GetColour();
851 m_gradientComponents.comps[i].red = (CGFloat) (col.Red() / 255.0);
852 m_gradientComponents.comps[i].green = (CGFloat) (col.Green() / 255.0);
853 m_gradientComponents.comps[i].blue = (CGFloat) (col.Blue() / 255.0);
854 m_gradientComponents.comps[i].alpha = (CGFloat) (col.Alpha() / 255.0);
855 }
856
857 return CGFunctionCreate ( &m_gradientComponents, 1,
858 input_value_range,
859 4,
860 output_value_ranges,
861 &callbacks);
862 }
863
864 //
865 // Font
866 //
867
868 #if wxOSX_USE_IPHONE
869
870 extern UIFont* CreateUIFont( const wxFont& font );
871 extern void DrawTextInContext( CGContextRef context, CGPoint where, UIFont *font, NSString* text );
872 extern CGSize MeasureTextInContext( UIFont *font, NSString* text );
873
874 #endif
875
876 class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
877 {
878 public:
879 wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
880 ~wxMacCoreGraphicsFontData();
881
882 #if wxOSX_USE_ATSU_TEXT
883 virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
884 #endif
885 #if wxOSX_USE_CORE_TEXT
886 CTFontRef OSXGetCTFont() const { return m_ctFont ; }
887 #endif
888 wxColour GetColour() const { return m_colour ; }
889
890 bool GetUnderlined() const { return m_underlined ; }
891 #if wxOSX_USE_IPHONE
892 UIFont* GetUIFont() const { return m_uiFont; }
893 #endif
894 private :
895 wxColour m_colour;
896 bool m_underlined;
897 #if wxOSX_USE_ATSU_TEXT
898 ATSUStyle m_macATSUIStyle;
899 #endif
900 #if wxOSX_USE_CORE_TEXT
901 wxCFRef< CTFontRef > m_ctFont;
902 #endif
903 #if wxOSX_USE_IPHONE
904 UIFont* m_uiFont;
905 #endif
906 };
907
908 wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
909 {
910 m_colour = col;
911 m_underlined = font.GetUnderlined();
912
913 #if wxOSX_USE_CORE_TEXT
914 m_ctFont.reset( wxMacCreateCTFont( font ) );
915 #endif
916 #if wxOSX_USE_IPHONE
917 m_uiFont = CreateUIFont(font);
918 wxMacCocoaRetain( m_uiFont );
919 #endif
920 #if wxOSX_USE_ATSU_TEXT
921 OSStatus status = noErr;
922 m_macATSUIStyle = NULL;
923
924 status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
925
926 wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
927
928 // we need the scale here ...
929
930 Fixed atsuSize = IntToFixed( int( 1 * font.GetPointSize()) );
931 RGBColor atsuColor ;
932 col.GetRGBColor( &atsuColor );
933 ATSUAttributeTag atsuTags[] =
934 {
935 kATSUSizeTag ,
936 kATSUColorTag ,
937 };
938 ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
939 {
940 sizeof( Fixed ) ,
941 sizeof( RGBColor ) ,
942 };
943 ATSUAttributeValuePtr atsuValues[WXSIZEOF(atsuTags)] =
944 {
945 &atsuSize ,
946 &atsuColor ,
947 };
948
949 status = ::ATSUSetAttributes(
950 m_macATSUIStyle, WXSIZEOF(atsuTags),
951 atsuTags, atsuSizes, atsuValues);
952
953 wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
954 #endif
955 }
956
957 wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
958 {
959 #if wxOSX_USE_CORE_TEXT
960 #endif
961 #if wxOSX_USE_ATSU_TEXT
962 if ( m_macATSUIStyle )
963 {
964 ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
965 m_macATSUIStyle = NULL;
966 }
967 #endif
968 #if wxOSX_USE_IPHONE
969 wxMacCocoaRelease( m_uiFont );
970 #endif
971 }
972
973 class wxMacCoreGraphicsBitmapData : public wxGraphicsObjectRefData
974 {
975 public:
976 wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome );
977 ~wxMacCoreGraphicsBitmapData();
978
979 virtual CGImageRef GetBitmap() { return m_bitmap; }
980 bool IsMonochrome() { return m_monochrome; }
981 private :
982 CGImageRef m_bitmap;
983 bool m_monochrome;
984 };
985
986 wxMacCoreGraphicsBitmapData::wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome ) : wxGraphicsObjectRefData( renderer ),
987 m_bitmap(bitmap), m_monochrome(monochrome)
988 {
989 }
990
991 wxMacCoreGraphicsBitmapData::~wxMacCoreGraphicsBitmapData()
992 {
993 CGImageRelease( m_bitmap );
994 }
995
996 //
997 // Graphics Matrix
998 //
999
1000 //-----------------------------------------------------------------------------
1001 // wxMacCoreGraphicsMatrix declaration
1002 //-----------------------------------------------------------------------------
1003
1004 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
1005 {
1006 public :
1007 wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
1008
1009 virtual ~wxMacCoreGraphicsMatrixData() ;
1010
1011 virtual wxGraphicsObjectRefData *Clone() const ;
1012
1013 // concatenates the matrix
1014 virtual void Concat( const wxGraphicsMatrixData *t );
1015
1016 // sets the matrix to the respective values
1017 virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
1018 wxDouble tx=0.0, wxDouble ty=0.0);
1019
1020 // gets the component valuess of the matrix
1021 virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL, wxDouble* c=NULL,
1022 wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
1023
1024 // makes this the inverse matrix
1025 virtual void Invert();
1026
1027 // returns true if the elements of the transformation matrix are equal ?
1028 virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
1029
1030 // return true if this is the identity matrix
1031 virtual bool IsIdentity() const;
1032
1033 //
1034 // transformation
1035 //
1036
1037 // add the translation to this matrix
1038 virtual void Translate( wxDouble dx , wxDouble dy );
1039
1040 // add the scale to this matrix
1041 virtual void Scale( wxDouble xScale , wxDouble yScale );
1042
1043 // add the rotation to this matrix (radians)
1044 virtual void Rotate( wxDouble angle );
1045
1046 //
1047 // apply the transforms
1048 //
1049
1050 // applies that matrix to the point
1051 virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
1052
1053 // applies the matrix except for translations
1054 virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
1055
1056 // returns the native representation
1057 virtual void * GetNativeMatrix() const;
1058
1059 private :
1060 CGAffineTransform m_matrix;
1061 } ;
1062
1063 //-----------------------------------------------------------------------------
1064 // wxMacCoreGraphicsMatrix implementation
1065 //-----------------------------------------------------------------------------
1066
1067 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
1068 {
1069 }
1070
1071 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
1072 {
1073 }
1074
1075 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
1076 {
1077 wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
1078 m->m_matrix = m_matrix ;
1079 return m;
1080 }
1081
1082 // concatenates the matrix
1083 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
1084 {
1085 m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
1086 }
1087
1088 // sets the matrix to the respective values
1089 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
1090 wxDouble tx, wxDouble ty)
1091 {
1092 m_matrix = CGAffineTransformMake((CGFloat) a,(CGFloat) b,(CGFloat) c,(CGFloat) d,(CGFloat) tx,(CGFloat) ty);
1093 }
1094
1095 // gets the component valuess of the matrix
1096 void wxMacCoreGraphicsMatrixData::Get(wxDouble* a, wxDouble* b, wxDouble* c,
1097 wxDouble* d, wxDouble* tx, wxDouble* ty) const
1098 {
1099 if (a) *a = m_matrix.a;
1100 if (b) *b = m_matrix.b;
1101 if (c) *c = m_matrix.c;
1102 if (d) *d = m_matrix.d;
1103 if (tx) *tx= m_matrix.tx;
1104 if (ty) *ty= m_matrix.ty;
1105 }
1106
1107 // makes this the inverse matrix
1108 void wxMacCoreGraphicsMatrixData::Invert()
1109 {
1110 m_matrix = CGAffineTransformInvert( m_matrix );
1111 }
1112
1113 // returns true if the elements of the transformation matrix are equal ?
1114 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
1115 {
1116 return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
1117 }
1118
1119 // return true if this is the identity matrix
1120 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
1121 {
1122 return ( m_matrix.a == 1 && m_matrix.d == 1 &&
1123 m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
1124 }
1125
1126 //
1127 // transformation
1128 //
1129
1130 // add the translation to this matrix
1131 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
1132 {
1133 m_matrix = CGAffineTransformTranslate( m_matrix, (CGFloat) dx, (CGFloat) dy);
1134 }
1135
1136 // add the scale to this matrix
1137 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1138 {
1139 m_matrix = CGAffineTransformScale( m_matrix, (CGFloat) xScale, (CGFloat) yScale);
1140 }
1141
1142 // add the rotation to this matrix (radians)
1143 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
1144 {
1145 m_matrix = CGAffineTransformRotate( m_matrix, (CGFloat) angle);
1146 }
1147
1148 //
1149 // apply the transforms
1150 //
1151
1152 // applies that matrix to the point
1153 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1154 {
1155 CGPoint pt = CGPointApplyAffineTransform( CGPointMake((CGFloat) *x,(CGFloat) *y), m_matrix);
1156
1157 *x = pt.x;
1158 *y = pt.y;
1159 }
1160
1161 // applies the matrix except for translations
1162 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1163 {
1164 CGSize sz = CGSizeApplyAffineTransform( CGSizeMake((CGFloat) *dx,(CGFloat) *dy) , m_matrix );
1165 *dx = sz.width;
1166 *dy = sz.height;
1167 }
1168
1169 // returns the native representation
1170 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
1171 {
1172 return (void*) &m_matrix;
1173 }
1174
1175 //
1176 // Graphics Path
1177 //
1178
1179 //-----------------------------------------------------------------------------
1180 // wxMacCoreGraphicsPath declaration
1181 //-----------------------------------------------------------------------------
1182
1183 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
1184 {
1185 public :
1186 wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
1187
1188 ~wxMacCoreGraphicsPathData();
1189
1190 virtual wxGraphicsObjectRefData *Clone() const;
1191
1192 // begins a new subpath at (x,y)
1193 virtual void MoveToPoint( wxDouble x, wxDouble y );
1194
1195 // adds a straight line from the current point to (x,y)
1196 virtual void AddLineToPoint( wxDouble x, wxDouble y );
1197
1198 // adds a cubic Bezier curve from the current point, using two control points and an end point
1199 virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
1200
1201 // closes the current sub-path
1202 virtual void CloseSubpath();
1203
1204 // gets the last point of the current path, (0,0) if not yet set
1205 virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
1206
1207 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1208 virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
1209
1210 //
1211 // These are convenience functions which - if not available natively will be assembled
1212 // using the primitives from above
1213 //
1214
1215 // adds a quadratic Bezier curve from the current point, using a control point and an end point
1216 virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
1217
1218 // appends a rectangle as a new closed subpath
1219 virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1220
1221 // appends a circle as a new closed subpath
1222 virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1223
1224 // appends an ellipsis as a new closed subpath fitting the passed rectangle
1225 virtual void AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
1226
1227 // 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)
1228 virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1229
1230 // adds another path
1231 virtual void AddPath( const wxGraphicsPathData* path );
1232
1233 // returns the native path
1234 virtual void * GetNativePath() const { return m_path; }
1235
1236 // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1237 virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1238
1239 // transforms each point of this path by the matrix
1240 virtual void Transform( const wxGraphicsMatrixData* matrix );
1241
1242 // gets the bounding box enclosing all points (possibly including control points)
1243 virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
1244
1245 virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
1246 private :
1247 CGMutablePathRef m_path;
1248 };
1249
1250 //-----------------------------------------------------------------------------
1251 // wxMacCoreGraphicsPath implementation
1252 //-----------------------------------------------------------------------------
1253
1254 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1255 {
1256 if ( path )
1257 m_path = path;
1258 else
1259 m_path = CGPathCreateMutable();
1260 }
1261
1262 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1263 {
1264 CGPathRelease( m_path );
1265 }
1266
1267 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1268 {
1269 wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1270 return clone ;
1271 }
1272
1273
1274 // opens (starts) a new subpath
1275 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1276 {
1277 CGPathMoveToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1278 }
1279
1280 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1281 {
1282 CGPathAddLineToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1283 }
1284
1285 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1286 {
1287 CGPathAddCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) cx2, (CGFloat) cy2, (CGFloat) x , (CGFloat) y );
1288 }
1289
1290 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1291 {
1292 CGPathAddQuadCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) x , (CGFloat) y );
1293 }
1294
1295 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1296 {
1297 CGRect cgRect = { { (CGFloat) x , (CGFloat) y } , { (CGFloat) w , (CGFloat) h } };
1298 CGPathAddRect( m_path , NULL , cgRect );
1299 }
1300
1301 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1302 {
1303 CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x-r,y-r,2*r,2*r));
1304 }
1305
1306 void wxMacCoreGraphicsPathData::AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1307 {
1308 CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x,y,w,h));
1309 }
1310
1311 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1312 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1313 {
1314 // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1315 CGPathAddArc( m_path, NULL , (CGFloat) x, (CGFloat) y, (CGFloat) r, (CGFloat) startAngle, (CGFloat) endAngle, !clockwise);
1316 }
1317
1318 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1319 {
1320 CGPathAddArcToPoint( m_path, NULL , (CGFloat) x1, (CGFloat) y1, (CGFloat) x2, (CGFloat) y2, (CGFloat) r);
1321 }
1322
1323 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1324 {
1325 CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1326 }
1327
1328 // closes the current subpath
1329 void wxMacCoreGraphicsPathData::CloseSubpath()
1330 {
1331 CGPathCloseSubpath( m_path );
1332 }
1333
1334 // gets the last point of the current path, (0,0) if not yet set
1335 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1336 {
1337 CGPoint p = CGPathGetCurrentPoint( m_path );
1338 *x = p.x;
1339 *y = p.y;
1340 }
1341
1342 // transforms each point of this path by the matrix
1343 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1344 {
1345 CGMutablePathRef p = CGPathCreateMutable() ;
1346 CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1347 CGPathRelease( m_path );
1348 m_path = p;
1349 }
1350
1351 // gets the bounding box enclosing all points (possibly including control points)
1352 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1353 {
1354 CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1355 *x = bounds.origin.x;
1356 *y = bounds.origin.y;
1357 *w = bounds.size.width;
1358 *h = bounds.size.height;
1359 }
1360
1361 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle) const
1362 {
1363 return CGPathContainsPoint( m_path, NULL, CGPointMake((CGFloat) x,(CGFloat) y), fillStyle == wxODDEVEN_RULE );
1364 }
1365
1366 //
1367 // Graphics Context
1368 //
1369
1370 //-----------------------------------------------------------------------------
1371 // wxMacCoreGraphicsContext declaration
1372 //-----------------------------------------------------------------------------
1373
1374 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1375 {
1376 public:
1377 wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1378
1379 #if wxOSX_USE_CARBON
1380 wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1381 #endif
1382
1383 wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1384
1385 wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1386
1387 wxMacCoreGraphicsContext();
1388
1389 ~wxMacCoreGraphicsContext();
1390
1391 void Init();
1392
1393 // returns the size of the graphics context in device coordinates
1394 virtual void GetSize( wxDouble* width, wxDouble* height);
1395
1396 virtual void StartPage( wxDouble width, wxDouble height );
1397
1398 virtual void EndPage();
1399
1400 virtual void Flush();
1401
1402 // push the current state of the context, ie the transformation matrix on a stack
1403 virtual void PushState();
1404
1405 // pops a stored state from the stack
1406 virtual void PopState();
1407
1408 // clips drawings to the region
1409 virtual void Clip( const wxRegion &region );
1410
1411 // clips drawings to the rect
1412 virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1413
1414 // resets the clipping to original extent
1415 virtual void ResetClip();
1416
1417 virtual void * GetNativeContext();
1418
1419 virtual bool SetAntialiasMode(wxAntialiasMode antialias);
1420
1421 virtual bool SetCompositionMode(wxCompositionMode op);
1422
1423 virtual void BeginLayer(wxDouble opacity);
1424
1425 virtual void EndLayer();
1426
1427 //
1428 // transformation
1429 //
1430
1431 // translate
1432 virtual void Translate( wxDouble dx , wxDouble dy );
1433
1434 // scale
1435 virtual void Scale( wxDouble xScale , wxDouble yScale );
1436
1437 // rotate (radians)
1438 virtual void Rotate( wxDouble angle );
1439
1440 // concatenates this transform with the current transform of this context
1441 virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1442
1443 // sets the transform of this context
1444 virtual void SetTransform( const wxGraphicsMatrix& matrix );
1445
1446 // gets the matrix of this context
1447 virtual wxGraphicsMatrix GetTransform() const;
1448 //
1449 // setting the paint
1450 //
1451
1452 // strokes along a path with the current pen
1453 virtual void StrokePath( const wxGraphicsPath &path );
1454
1455 // fills a path with the current brush
1456 virtual void FillPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1457
1458 // draws a path by first filling and then stroking
1459 virtual void DrawPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1460
1461 virtual bool ShouldOffset() const
1462 {
1463 int penwidth = 0 ;
1464 if ( !m_pen.IsNull() )
1465 {
1466 penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1467 if ( penwidth == 0 )
1468 penwidth = 1;
1469 }
1470 return ( penwidth % 2 ) == 1;
1471 }
1472 //
1473 // text
1474 //
1475
1476 virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1477 wxDouble *descent, wxDouble *externalLeading ) const;
1478
1479 virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1480
1481 //
1482 // image support
1483 //
1484
1485 virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1486
1487 virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1488
1489 virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1490
1491 void SetNativeContext( CGContextRef cg );
1492
1493 DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsContext)
1494
1495 private:
1496 bool EnsureIsValid();
1497
1498 virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
1499 virtual void DoDrawRotatedText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1500
1501 CGContextRef m_cgContext;
1502 #if wxOSX_USE_CARBON
1503 WindowRef m_windowRef;
1504 #else
1505 WXWidget m_view;
1506 #endif
1507 bool m_contextSynthesized;
1508 CGAffineTransform m_windowTransform;
1509 wxDouble m_width;
1510 wxDouble m_height;
1511 bool m_invisible;
1512
1513 #if wxOSX_USE_COCOA_OR_CARBON
1514 wxCFRef<HIShapeRef> m_clipRgn;
1515 #endif
1516 };
1517
1518 //-----------------------------------------------------------------------------
1519 // device context implementation
1520 //
1521 // more and more of the dc functionality should be implemented by calling
1522 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1523 // also coordinate conversions should be moved to native matrix ops
1524 //-----------------------------------------------------------------------------
1525
1526 // we always stock two context states, one at entry, to be able to preserve the
1527 // state we were called with, the other one after changing to HI Graphics orientation
1528 // (this one is used for getting back clippings etc)
1529
1530 //-----------------------------------------------------------------------------
1531 // wxMacCoreGraphicsContext implementation
1532 //-----------------------------------------------------------------------------
1533
1534 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1535
1536 class wxQuartzOffsetHelper
1537 {
1538 public :
1539 wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1540 {
1541 m_cg = cg;
1542 m_offset = offset;
1543 if ( m_offset )
1544 {
1545 m_userOffset = CGContextConvertSizeToUserSpace( m_cg, CGSizeMake( 0.5 , 0.5 ) );
1546 CGContextTranslateCTM( m_cg, m_userOffset.width , m_userOffset.height );
1547 }
1548 }
1549 ~wxQuartzOffsetHelper( )
1550 {
1551 if ( m_offset )
1552 CGContextTranslateCTM( m_cg, -m_userOffset.width , -m_userOffset.height );
1553 }
1554 public :
1555 CGSize m_userOffset;
1556 CGContextRef m_cg;
1557 bool m_offset;
1558 } ;
1559
1560 void wxMacCoreGraphicsContext::Init()
1561 {
1562 m_cgContext = NULL;
1563 m_contextSynthesized = false;
1564 m_width = 0;
1565 m_height = 0;
1566 #if wxOSX_USE_CARBON
1567 m_windowRef = NULL;
1568 #endif
1569 #if wxOSX_USE_COCOA_OR_IPHONE
1570 m_view = NULL;
1571 #endif
1572 m_invisible = false;
1573 }
1574
1575 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer)
1576 {
1577 Init();
1578 SetNativeContext(cgcontext);
1579 m_width = width;
1580 m_height = height;
1581 }
1582
1583 #if wxOSX_USE_CARBON
1584 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1585 {
1586 Init();
1587 m_windowRef = window;
1588 }
1589 #endif
1590
1591 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1592 {
1593 Init();
1594
1595 wxSize sz = window->GetSize();
1596 m_width = sz.x;
1597 m_height = sz.y;
1598
1599 #if wxOSX_USE_COCOA_OR_IPHONE
1600 m_view = window->GetHandle();
1601
1602 #if wxOSX_USE_COCOA
1603 if ( ! window->GetPeer()->IsFlipped() )
1604 {
1605 m_windowTransform = CGAffineTransformMakeTranslation( 0 , m_height );
1606 m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1607 }
1608 else
1609 #endif
1610 {
1611 m_windowTransform = CGAffineTransformIdentity;
1612 }
1613 #else
1614 int originX , originY;
1615 originX = originY = 0;
1616 Rect bounds = { 0,0,0,0 };
1617 m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1618 window->MacWindowToRootWindow( &originX , &originY );
1619 GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1620 m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1621 m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1622 m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1623 #endif
1624 }
1625
1626 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1627 {
1628 Init();
1629 }
1630
1631 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1632 {
1633 Init();
1634 wxLogDebug(wxT("Illegal Constructor called"));
1635 }
1636
1637 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1638 {
1639 SetNativeContext(NULL);
1640 }
1641
1642 void wxMacCoreGraphicsContext::GetSize( wxDouble* width, wxDouble* height)
1643 {
1644 *width = m_width;
1645 *height = m_height;
1646 }
1647
1648
1649 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1650 {
1651 CGRect r;
1652 if ( width != 0 && height != 0)
1653 r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) width , (CGFloat) height );
1654 else
1655 r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) m_width , (CGFloat) m_height );
1656
1657 CGContextBeginPage(m_cgContext, &r );
1658 // CGContextTranslateCTM( m_cgContext , 0 , height == 0 ? m_height : height );
1659 // CGContextScaleCTM( m_cgContext , 1 , -1 );
1660 }
1661
1662 void wxMacCoreGraphicsContext::EndPage()
1663 {
1664 CGContextEndPage(m_cgContext);
1665 }
1666
1667 void wxMacCoreGraphicsContext::Flush()
1668 {
1669 CGContextFlush(m_cgContext);
1670 }
1671
1672 bool wxMacCoreGraphicsContext::EnsureIsValid()
1673 {
1674 if ( !m_cgContext )
1675 {
1676 if (m_invisible)
1677 return false;
1678
1679 #if wxOSX_USE_COCOA
1680 if ( wxOSXLockFocus(m_view) )
1681 {
1682 m_cgContext = wxOSXGetContextFromCurrentContext();
1683 wxASSERT_MSG( m_cgContext != NULL, wxT("Unable to retrieve drawing context from View"));
1684 }
1685 else
1686 {
1687 m_invisible = true;
1688 }
1689 #endif
1690 #if wxOSX_USE_IPHONE
1691 m_cgContext = wxOSXGetContextFromCurrentContext();
1692 if ( m_cgContext == NULL )
1693 {
1694 m_invisible = true;
1695 }
1696 #endif
1697 #if wxOSX_USE_CARBON
1698 OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1699 if ( status != noErr )
1700 {
1701 wxFAIL_MSG("Cannot nest wxDCs on the same window");
1702 }
1703 #endif
1704 if ( m_cgContext )
1705 {
1706 CGContextSaveGState( m_cgContext );
1707 CGContextConcatCTM( m_cgContext, m_windowTransform );
1708 CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
1709 m_contextSynthesized = true;
1710 #if wxOSX_USE_COCOA_OR_CARBON
1711 if ( m_clipRgn.get() )
1712 {
1713 // the clip region is in device coordinates, so we convert this again to user coordinates
1714 wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1715 CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero,m_windowTransform);
1716 HIShapeOffset( hishape, -transformedOrigin.x, -transformedOrigin.y );
1717 // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1718 if ( HIShapeIsEmpty(hishape))
1719 {
1720 CGRect empty = CGRectMake( 0,0,0,0 );
1721 CGContextClipToRect( m_cgContext, empty );
1722 }
1723 else
1724 {
1725 HIShapeReplacePathInCGContext( hishape, m_cgContext );
1726 CGContextClip( m_cgContext );
1727 }
1728 }
1729 #endif
1730 CGContextSaveGState( m_cgContext );
1731
1732 #if 0 // turn on for debugging of clientdc
1733 static float color = 0.5 ;
1734 static int channel = 0 ;
1735 CGRect bounds = CGRectMake(-1000,-1000,2000,2000);
1736 CGContextSetRGBFillColor( m_cgContext, channel == 0 ? color : 0.5 ,
1737 channel == 1 ? color : 0.5 , channel == 2 ? color : 0.5 , 1 );
1738 CGContextFillRect( m_cgContext, bounds );
1739 color += 0.1 ;
1740 if ( color > 0.9 )
1741 {
1742 color = 0.5 ;
1743 channel++ ;
1744 if ( channel == 3 )
1745 channel = 0 ;
1746 }
1747 #endif
1748 }
1749 }
1750 return m_cgContext != NULL;
1751 }
1752
1753 bool wxMacCoreGraphicsContext::SetAntialiasMode(wxAntialiasMode antialias)
1754 {
1755 if (!EnsureIsValid())
1756 return true;
1757
1758 if (m_antialias == antialias)
1759 return true;
1760
1761 m_antialias = antialias;
1762
1763 bool antialiasMode;
1764 switch (antialias)
1765 {
1766 case wxANTIALIAS_DEFAULT:
1767 antialiasMode = true;
1768 break;
1769 case wxANTIALIAS_NONE:
1770 antialiasMode = false;
1771 break;
1772 default:
1773 return false;
1774 }
1775 CGContextSetShouldAntialias(m_cgContext, antialiasMode);
1776 return true;
1777 }
1778
1779 bool wxMacCoreGraphicsContext::SetCompositionMode(wxCompositionMode op)
1780 {
1781 if (!EnsureIsValid())
1782 return true;
1783
1784 if ( m_composition == op )
1785 return true;
1786
1787 m_composition = op;
1788
1789 if (m_composition == wxCOMPOSITION_DEST)
1790 return true;
1791
1792 #if wxOSX_USE_COCOA_OR_CARBON
1793 if ( UMAGetSystemVersion() < 0x1060 )
1794 {
1795 CGCompositeOperation cop = kCGCompositeOperationSourceOver;
1796 CGBlendMode mode = kCGBlendModeNormal;
1797 switch( op )
1798 {
1799 case wxCOMPOSITION_CLEAR:
1800 cop = kCGCompositeOperationClear;
1801 break;
1802 case wxCOMPOSITION_SOURCE:
1803 cop = kCGCompositeOperationCopy;
1804 break;
1805 case wxCOMPOSITION_OVER:
1806 mode = kCGBlendModeNormal;
1807 break;
1808 case wxCOMPOSITION_IN:
1809 cop = kCGCompositeOperationSourceIn;
1810 break;
1811 case wxCOMPOSITION_OUT:
1812 cop = kCGCompositeOperationSourceOut;
1813 break;
1814 case wxCOMPOSITION_ATOP:
1815 cop = kCGCompositeOperationSourceAtop;
1816 break;
1817 case wxCOMPOSITION_DEST_OVER:
1818 cop = kCGCompositeOperationDestinationOver;
1819 break;
1820 case wxCOMPOSITION_DEST_IN:
1821 cop = kCGCompositeOperationDestinationIn;
1822 break;
1823 case wxCOMPOSITION_DEST_OUT:
1824 cop = kCGCompositeOperationDestinationOut;
1825 break;
1826 case wxCOMPOSITION_DEST_ATOP:
1827 cop = kCGCompositeOperationDestinationAtop;
1828 break;
1829 case wxCOMPOSITION_XOR:
1830 cop = kCGCompositeOperationXOR;
1831 break;
1832 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1833 case wxCOMPOSITION_ADD:
1834 mode = kCGBlendModePlusLighter ;
1835 break;
1836 #endif
1837 default:
1838 return false;
1839 }
1840 if ( cop != kCGCompositeOperationSourceOver )
1841 CGContextSetCompositeOperation(m_cgContext, cop);
1842 else
1843 CGContextSetBlendMode(m_cgContext, mode);
1844 }
1845 #endif
1846 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1847 else
1848 {
1849 CGBlendMode mode = kCGBlendModeNormal;
1850 switch( op )
1851 {
1852 case wxCOMPOSITION_CLEAR:
1853 mode = kCGBlendModeClear;
1854 break;
1855 case wxCOMPOSITION_SOURCE:
1856 mode = kCGBlendModeCopy;
1857 break;
1858 case wxCOMPOSITION_OVER:
1859 mode = kCGBlendModeNormal;
1860 break;
1861 case wxCOMPOSITION_IN:
1862 mode = kCGBlendModeSourceIn;
1863 break;
1864 case wxCOMPOSITION_OUT:
1865 mode = kCGBlendModeSourceOut;
1866 break;
1867 case wxCOMPOSITION_ATOP:
1868 mode = kCGBlendModeSourceAtop;
1869 break;
1870 case wxCOMPOSITION_DEST_OVER:
1871 mode = kCGBlendModeDestinationOver;
1872 break;
1873 case wxCOMPOSITION_DEST_IN:
1874 mode = kCGBlendModeDestinationIn;
1875 break;
1876 case wxCOMPOSITION_DEST_OUT:
1877 mode = kCGBlendModeDestinationOut;
1878 break;
1879 case wxCOMPOSITION_DEST_ATOP:
1880 mode = kCGBlendModeDestinationAtop;
1881 break;
1882 case wxCOMPOSITION_XOR:
1883 mode = kCGBlendModeXOR;
1884 break;
1885
1886 case wxCOMPOSITION_ADD:
1887 mode = kCGBlendModePlusLighter ;
1888 break;
1889 default:
1890 return false;
1891 }
1892 CGContextSetBlendMode(m_cgContext, mode);
1893 }
1894 #endif
1895 return true;
1896 }
1897
1898 void wxMacCoreGraphicsContext::BeginLayer(wxDouble opacity)
1899 {
1900 CGContextSaveGState(m_cgContext);
1901 CGContextSetAlpha(m_cgContext, (CGFloat) opacity);
1902 CGContextBeginTransparencyLayer(m_cgContext, 0);
1903 }
1904
1905 void wxMacCoreGraphicsContext::EndLayer()
1906 {
1907 CGContextEndTransparencyLayer(m_cgContext);
1908 CGContextRestoreGState(m_cgContext);
1909 }
1910
1911 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1912 {
1913 #if wxOSX_USE_COCOA_OR_CARBON
1914 if( m_cgContext )
1915 {
1916 wxCFRef<HIShapeRef> shape = wxCFRefFromGet(region.GetWXHRGN());
1917 // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1918 if ( HIShapeIsEmpty(shape))
1919 {
1920 CGRect empty = CGRectMake( 0,0,0,0 );
1921 CGContextClipToRect( m_cgContext, empty );
1922 }
1923 else
1924 {
1925 HIShapeReplacePathInCGContext( shape, m_cgContext );
1926 CGContextClip( m_cgContext );
1927 }
1928 }
1929 else
1930 {
1931 // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1932 // to regions we try at least to have correct translations
1933 HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1934
1935 CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1936 HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1937 m_clipRgn.reset(mutableShape);
1938 }
1939 #else
1940 // allow usage as measuring context
1941 // wxASSERT_MSG( m_cgContext != NULL, "Needs a valid context for clipping" );
1942 #endif
1943 }
1944
1945 // clips drawings to the rect
1946 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1947 {
1948 CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1949 if ( m_cgContext )
1950 {
1951 CGContextClipToRect( m_cgContext, r );
1952 }
1953 else
1954 {
1955 #if wxOSX_USE_COCOA_OR_CARBON
1956 // the clipping itself must be stored as device coordinates, otherwise
1957 // we cannot apply it back correctly
1958 r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
1959 m_clipRgn.reset(HIShapeCreateWithRect(&r));
1960 #else
1961 // allow usage as measuring context
1962 // wxFAIL_MSG( "Needs a valid context for clipping" );
1963 #endif
1964 }
1965 }
1966
1967 // resets the clipping to original extent
1968 void wxMacCoreGraphicsContext::ResetClip()
1969 {
1970 if ( m_cgContext )
1971 {
1972 // there is no way for clearing the clip, we can only revert to the stored
1973 // state, but then we have to make sure everything else is NOT restored
1974 CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1975 CGContextRestoreGState( m_cgContext );
1976 CGContextSaveGState( m_cgContext );
1977 CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
1978 transformNew = CGAffineTransformInvert( transformNew ) ;
1979 CGContextConcatCTM( m_cgContext, transformNew);
1980 CGContextConcatCTM( m_cgContext, transform);
1981 }
1982 else
1983 {
1984 #if wxOSX_USE_COCOA_OR_CARBON
1985 m_clipRgn.reset();
1986 #else
1987 // allow usage as measuring context
1988 // wxFAIL_MSG( "Needs a valid context for clipping" );
1989 #endif
1990 }
1991 }
1992
1993 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1994 {
1995 if ( m_pen.IsNull() )
1996 return ;
1997
1998 if (!EnsureIsValid())
1999 return;
2000
2001 if (m_composition == wxCOMPOSITION_DEST)
2002 return;
2003
2004 wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
2005
2006 ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
2007 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2008 CGContextStrokePath( m_cgContext );
2009 }
2010
2011 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
2012 {
2013 if (!EnsureIsValid())
2014 return;
2015
2016 if (m_composition == wxCOMPOSITION_DEST)
2017 return;
2018
2019 if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2020 {
2021 // when using shading, we cannot draw pen and brush at the same time
2022 // revert to the base implementation of first filling and then stroking
2023 wxGraphicsContext::DrawPath( path, fillStyle );
2024 return;
2025 }
2026
2027 CGPathDrawingMode mode = kCGPathFill ;
2028 if ( m_brush.IsNull() )
2029 {
2030 if ( m_pen.IsNull() )
2031 return;
2032 else
2033 mode = kCGPathStroke;
2034 }
2035 else
2036 {
2037 if ( m_pen.IsNull() )
2038 {
2039 if ( fillStyle == wxODDEVEN_RULE )
2040 mode = kCGPathEOFill;
2041 else
2042 mode = kCGPathFill;
2043 }
2044 else
2045 {
2046 if ( fillStyle == wxODDEVEN_RULE )
2047 mode = kCGPathEOFillStroke;
2048 else
2049 mode = kCGPathFillStroke;
2050 }
2051 }
2052
2053 if ( !m_brush.IsNull() )
2054 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2055 if ( !m_pen.IsNull() )
2056 ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
2057
2058 wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
2059
2060 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2061 CGContextDrawPath( m_cgContext , mode );
2062 }
2063
2064 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
2065 {
2066 if ( m_brush.IsNull() )
2067 return;
2068
2069 if (!EnsureIsValid())
2070 return;
2071
2072 if (m_composition == wxCOMPOSITION_DEST)
2073 return;
2074
2075 if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2076 {
2077 CGContextSaveGState( m_cgContext );
2078 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2079 CGContextClip( m_cgContext );
2080 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2081 CGContextRestoreGState( m_cgContext);
2082 }
2083 else
2084 {
2085 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2086 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2087 if ( fillStyle == wxODDEVEN_RULE )
2088 CGContextEOFillPath( m_cgContext );
2089 else
2090 CGContextFillPath( m_cgContext );
2091 }
2092 }
2093
2094 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
2095 {
2096 // we allow either setting or clearing but not replacing
2097 wxASSERT( m_cgContext == NULL || cg == NULL );
2098
2099 if ( m_cgContext )
2100 {
2101 CGContextRestoreGState( m_cgContext );
2102 CGContextRestoreGState( m_cgContext );
2103 if ( m_contextSynthesized )
2104 {
2105 #if wxOSX_USE_CARBON
2106 QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
2107 #endif
2108 #if wxOSX_USE_COCOA
2109 wxOSXUnlockFocus(m_view);
2110 #endif
2111 }
2112 else
2113 CGContextRelease(m_cgContext);
2114 }
2115
2116 m_cgContext = cg;
2117
2118 // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
2119 // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
2120 // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
2121 // for this one operation.
2122
2123 // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
2124 // can be removed.
2125 if (m_cgContext)
2126 {
2127 CGContextRetain(m_cgContext);
2128 CGContextSaveGState( m_cgContext );
2129 CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
2130 CGContextSaveGState( m_cgContext );
2131 m_contextSynthesized = false;
2132 }
2133 }
2134
2135 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
2136 {
2137 if ( m_cgContext )
2138 CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
2139 else
2140 m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
2141 }
2142
2143 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
2144 {
2145 if ( m_cgContext )
2146 CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
2147 else
2148 m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
2149 }
2150
2151 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
2152 {
2153 if ( m_cgContext )
2154 CGContextRotateCTM( m_cgContext , (CGFloat) angle );
2155 else
2156 m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
2157 }
2158
2159 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2160 {
2161 wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
2162 DrawBitmap(bitmap, x, y, w, h);
2163 }
2164
2165 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2166 {
2167 if (!EnsureIsValid())
2168 return;
2169
2170 if (m_composition == wxCOMPOSITION_DEST)
2171 return;
2172
2173 #ifdef __WXMAC__
2174 wxMacCoreGraphicsBitmapData* refdata =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2175 CGImageRef image = refdata->GetBitmap();
2176 CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2177 if ( refdata->IsMonochrome() == 1 )
2178 {
2179 // is is a mask, the '1' in the mask tell where to draw the current brush
2180 if ( !m_brush.IsNull() )
2181 {
2182 if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2183 {
2184 // TODO clip to mask
2185 /*
2186 CGContextSaveGState( m_cgContext );
2187 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2188 CGContextClip( m_cgContext );
2189 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2190 CGContextRestoreGState( m_cgContext);
2191 */
2192 }
2193 else
2194 {
2195 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2196 wxMacDrawCGImage( m_cgContext , &r , image );
2197 }
2198 }
2199 }
2200 else
2201 {
2202 wxMacDrawCGImage( m_cgContext , &r , image );
2203 }
2204 #endif
2205 }
2206
2207 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2208 {
2209 if (!EnsureIsValid())
2210 return;
2211
2212 if (m_composition == wxCOMPOSITION_DEST)
2213 return;
2214
2215 CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
2216 CGContextSaveGState( m_cgContext );
2217 CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
2218 CGContextScaleCTM( m_cgContext, 1, -1 );
2219 #if wxOSX_USE_COCOA_OR_CARBON
2220 PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
2221 NULL , kPlotIconRefNormalFlags , icon.GetHICON() );
2222 #endif
2223 CGContextRestoreGState( m_cgContext );
2224 }
2225
2226 void wxMacCoreGraphicsContext::PushState()
2227 {
2228 if (!EnsureIsValid())
2229 return;
2230
2231 CGContextSaveGState( m_cgContext );
2232 }
2233
2234 void wxMacCoreGraphicsContext::PopState()
2235 {
2236 if (!EnsureIsValid())
2237 return;
2238
2239 CGContextRestoreGState( m_cgContext );
2240 }
2241
2242 void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDouble y )
2243 {
2244 wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2245
2246 if (!EnsureIsValid())
2247 return;
2248
2249 if (m_composition == wxCOMPOSITION_DEST)
2250 return;
2251
2252 #if wxOSX_USE_CORE_TEXT
2253 if ( UMAGetSystemVersion() >= 0x1050 )
2254 {
2255 wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2256 wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2257 CTFontRef font = fref->OSXGetCTFont();
2258 CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2259 CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
2260 wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
2261 CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
2262 CFTypeRef values[] = { font, col, underlined };
2263 wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2264 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2265 wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2266 wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2267
2268 y += CTFontGetAscent(font);
2269
2270 CGContextSaveGState(m_cgContext);
2271 CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2272 CGContextScaleCTM(m_cgContext, 1, -1);
2273 CGContextSetTextPosition(m_cgContext, 0, 0);
2274 CTLineDraw( line, m_cgContext );
2275 CGContextRestoreGState(m_cgContext);
2276 CFRelease( col );
2277 return;
2278 }
2279 #endif
2280 #if wxOSX_USE_ATSU_TEXT
2281 {
2282 DrawText(str, x, y, 0.0);
2283 return;
2284 }
2285 #endif
2286 #if wxOSX_USE_IPHONE
2287 wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2288
2289 CGContextSaveGState(m_cgContext);
2290
2291 CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2292 CGContextSetTextDrawingMode (m_cgContext, kCGTextFill);
2293 CGContextSetFillColorWithColor( m_cgContext, col );
2294
2295 wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2296 DrawTextInContext( m_cgContext, CGPointMake( x, y ), fref->GetUIFont() , text.AsNSString() );
2297
2298 CGContextRestoreGState(m_cgContext);
2299 CFRelease( col );
2300 #endif
2301 }
2302
2303 void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
2304 wxDouble x, wxDouble y,
2305 wxDouble angle)
2306 {
2307 wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2308
2309 if (!EnsureIsValid())
2310 return;
2311
2312 if (m_composition == wxCOMPOSITION_DEST)
2313 return;
2314
2315 #if wxOSX_USE_CORE_TEXT
2316 if ( UMAGetSystemVersion() >= 0x1050 )
2317 {
2318 // default implementation takes care of rotation and calls non rotated DrawText afterwards
2319 wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2320 return;
2321 }
2322 #endif
2323 #if wxOSX_USE_ATSU_TEXT
2324 {
2325 OSStatus status = noErr;
2326 ATSUTextLayout atsuLayout;
2327 wxMacUniCharBuffer unibuf( str );
2328 UniCharCount chars = unibuf.GetChars();
2329
2330 ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2331 status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2332 &chars , &style , &atsuLayout );
2333
2334 wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
2335
2336 status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2337 wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2338
2339 int iAngle = int( angle * RAD2DEG );
2340 if ( abs(iAngle) > 0 )
2341 {
2342 Fixed atsuAngle = IntToFixed( iAngle );
2343 ATSUAttributeTag atsuTags[] =
2344 {
2345 kATSULineRotationTag ,
2346 };
2347 ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2348 {
2349 sizeof( Fixed ) ,
2350 };
2351 ATSUAttributeValuePtr atsuValues[WXSIZEOF(atsuTags)] =
2352 {
2353 &atsuAngle ,
2354 };
2355 status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2356 atsuTags, atsuSizes, atsuValues );
2357 }
2358
2359 {
2360 ATSUAttributeTag atsuTags[] =
2361 {
2362 kATSUCGContextTag ,
2363 };
2364 ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2365 {
2366 sizeof( CGContextRef ) ,
2367 };
2368 ATSUAttributeValuePtr atsuValues[WXSIZEOF(atsuTags)] =
2369 {
2370 &m_cgContext ,
2371 };
2372 status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2373 atsuTags, atsuSizes, atsuValues );
2374 }
2375
2376 ATSUTextMeasurement textBefore, textAfter;
2377 ATSUTextMeasurement ascent, descent;
2378
2379 status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2380 &textBefore , &textAfter, &ascent , &descent );
2381
2382 wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2383
2384 Rect rect;
2385 x += (int)(sin(angle) * FixedToInt(ascent));
2386 y += (int)(cos(angle) * FixedToInt(ascent));
2387
2388 status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2389 IntToFixed(x) , IntToFixed(y) , &rect );
2390 wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2391
2392 CGContextSaveGState(m_cgContext);
2393 CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2394 CGContextScaleCTM(m_cgContext, 1, -1);
2395 status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2396 IntToFixed(0) , IntToFixed(0) );
2397
2398 wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2399
2400 CGContextRestoreGState(m_cgContext);
2401
2402 ::ATSUDisposeTextLayout(atsuLayout);
2403
2404 return;
2405 }
2406 #endif
2407 #if wxOSX_USE_IPHONE
2408 // default implementation takes care of rotation and calls non rotated DrawText afterwards
2409 wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2410 #endif
2411 }
2412
2413 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2414 wxDouble *descent, wxDouble *externalLeading ) const
2415 {
2416 wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::GetTextExtent - no valid font set") );
2417
2418 if ( width )
2419 *width = 0;
2420 if ( height )
2421 *height = 0;
2422 if ( descent )
2423 *descent = 0;
2424 if ( externalLeading )
2425 *externalLeading = 0;
2426
2427 if (str.empty())
2428 return;
2429
2430 #if wxOSX_USE_CORE_TEXT
2431 if ( UMAGetSystemVersion() >= 0x1050 )
2432 {
2433 wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2434 CTFontRef font = fref->OSXGetCTFont();
2435
2436 wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2437 CFStringRef keys[] = { kCTFontAttributeName };
2438 CFTypeRef values[] = { font };
2439 wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2440 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2441 wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2442 wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2443
2444 // round the returned extent: this is probably more correct anyhow but
2445 // we also need to do it to be consistent with GetPartialTextExtents()
2446 // below and avoid strange situation when the last partial extent
2447 // returned by it could have been greater than the full extent returned
2448 // by us
2449 CGFloat a, d, l;
2450 int w = CTLineGetTypographicBounds(line, &a, &d, &l) + 0.5;
2451
2452 if ( height )
2453 *height = a+d+l;
2454 if ( descent )
2455 *descent = d;
2456 if ( externalLeading )
2457 *externalLeading = l;
2458 if ( width )
2459 *width = w;
2460 return;
2461 }
2462 #endif
2463 #if wxOSX_USE_ATSU_TEXT
2464 {
2465 OSStatus status = noErr;
2466
2467 ATSUTextLayout atsuLayout;
2468 wxMacUniCharBuffer unibuf( str );
2469 UniCharCount chars = unibuf.GetChars();
2470
2471 ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2472 status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2473 &chars , &style , &atsuLayout );
2474
2475 wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2476
2477 status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2478 wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2479
2480 ATSUTextMeasurement textBefore, textAfter;
2481 ATSUTextMeasurement textAscent, textDescent;
2482
2483 status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2484 &textBefore , &textAfter, &textAscent , &textDescent );
2485
2486 if ( height )
2487 *height = FixedToInt(textAscent + textDescent);
2488 if ( descent )
2489 *descent = FixedToInt(textDescent);
2490 if ( externalLeading )
2491 *externalLeading = 0;
2492 if ( width )
2493 *width = FixedToInt(textAfter - textBefore);
2494
2495 ::ATSUDisposeTextLayout(atsuLayout);
2496
2497 return;
2498 }
2499 #endif
2500 #if wxOSX_USE_IPHONE
2501 wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2502
2503 wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2504 CGSize sz = MeasureTextInContext( fref->GetUIFont() , text.AsNSString() );
2505
2506 if ( height )
2507 *height = sz.height;
2508 /*
2509 if ( descent )
2510 *descent = FixedToInt(textDescent);
2511 if ( externalLeading )
2512 *externalLeading = 0;
2513 */
2514 if ( width )
2515 *width = sz.width;
2516 #endif
2517 }
2518
2519 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2520 {
2521 widths.Empty();
2522 widths.Add(0, text.length());
2523
2524 wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2525
2526 if (text.empty())
2527 return;
2528
2529 #if wxOSX_USE_CORE_TEXT
2530 {
2531 wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2532 CTFontRef font = fref->OSXGetCTFont();
2533
2534 wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2535 CFStringRef keys[] = { kCTFontAttributeName };
2536 CFTypeRef values[] = { font };
2537 wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2538 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2539 wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2540 wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2541
2542 int chars = text.length();
2543 for ( int pos = 0; pos < (int)chars; pos ++ )
2544 {
2545 widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL );
2546 }
2547
2548 return;
2549 }
2550 #endif
2551 #if wxOSX_USE_ATSU_TEXT
2552 {
2553 OSStatus status = noErr;
2554 ATSUTextLayout atsuLayout;
2555 wxMacUniCharBuffer unibuf( text );
2556 UniCharCount chars = unibuf.GetChars();
2557
2558 ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2559 status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2560 &chars , &style , &atsuLayout );
2561
2562 wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2563
2564 status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2565 wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2566
2567 // new implementation from JS, keep old one just in case
2568 #if 0
2569 for ( int pos = 0; pos < (int)chars; pos ++ )
2570 {
2571 unsigned long actualNumberOfBounds = 0;
2572 ATSTrapezoid glyphBounds;
2573
2574 // We get a single bound, since the text should only require one. If it requires more, there is an issue
2575 OSStatus result;
2576 result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2577 kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2578 if (result != noErr || actualNumberOfBounds != 1 )
2579 return;
2580
2581 widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2582 //unsigned char uch = s[i];
2583 }
2584 #else
2585 ATSLayoutRecord *layoutRecords = NULL;
2586 ItemCount glyphCount = 0;
2587
2588 // Get the glyph extents
2589 OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2590 0,
2591 kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2592 (void **)
2593 &layoutRecords,
2594 &glyphCount);
2595 wxASSERT(glyphCount == (text.length()+1));
2596
2597 if ( err == noErr && glyphCount == (text.length()+1))
2598 {
2599 for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2600 {
2601 widths[pos-1] = FixedToInt( layoutRecords[pos].realPos );
2602 }
2603 }
2604
2605 ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2606 kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2607 (void **) &layoutRecords);
2608 #endif
2609 ::ATSUDisposeTextLayout(atsuLayout);
2610 }
2611 #endif
2612 #if wxOSX_USE_IPHONE
2613 // TODO core graphics text implementation here
2614 #endif
2615 }
2616
2617 void * wxMacCoreGraphicsContext::GetNativeContext()
2618 {
2619 return m_cgContext;
2620 }
2621
2622 // concatenates this transform with the current transform of this context
2623 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2624 {
2625 if ( m_cgContext )
2626 CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2627 else
2628 m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
2629 }
2630
2631 // sets the transform of this context
2632 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2633 {
2634 if ( m_cgContext )
2635 {
2636 CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2637 transform = CGAffineTransformInvert( transform ) ;
2638 CGContextConcatCTM( m_cgContext, transform);
2639 CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2640 }
2641 else
2642 {
2643 m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2644 }
2645 }
2646
2647 // gets the matrix of this context
2648 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2649 {
2650 wxGraphicsMatrix m = CreateMatrix();
2651 *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2652 CGContextGetCTM( m_cgContext ));
2653 return m;
2654 }
2655
2656 //
2657 // Renderer
2658 //
2659
2660 //-----------------------------------------------------------------------------
2661 // wxMacCoreGraphicsRenderer declaration
2662 //-----------------------------------------------------------------------------
2663
2664 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2665 {
2666 public :
2667 wxMacCoreGraphicsRenderer() {}
2668
2669 virtual ~wxMacCoreGraphicsRenderer() {}
2670
2671 // Context
2672
2673 virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2674 virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2675 #if wxUSE_PRINTING_ARCHITECTURE
2676 virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2677 #endif
2678
2679 virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2680
2681 virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2682
2683 virtual wxGraphicsContext * CreateContext( wxWindow* window );
2684
2685 virtual wxGraphicsContext * CreateMeasuringContext();
2686
2687 // Path
2688
2689 virtual wxGraphicsPath CreatePath();
2690
2691 // Matrix
2692
2693 virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2694 wxDouble tx=0.0, wxDouble ty=0.0);
2695
2696
2697 virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2698
2699 virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2700
2701 virtual wxGraphicsBrush
2702 CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
2703 wxDouble x2, wxDouble y2,
2704 const wxGraphicsGradientStops& stops);
2705
2706 virtual wxGraphicsBrush
2707 CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
2708 wxDouble xc, wxDouble yc,
2709 wxDouble radius,
2710 const wxGraphicsGradientStops& stops);
2711
2712 // sets the font
2713 virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2714
2715 // create a native bitmap representation
2716 virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2717
2718 // create a graphics bitmap from a native bitmap
2719 virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
2720
2721 // create a native bitmap representation
2722 virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) ;
2723 private :
2724 DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2725 } ;
2726
2727 //-----------------------------------------------------------------------------
2728 // wxMacCoreGraphicsRenderer implementation
2729 //-----------------------------------------------------------------------------
2730
2731 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2732
2733 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2734
2735 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2736 {
2737 return &gs_MacCoreGraphicsRenderer;
2738 }
2739
2740 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2741 {
2742 const wxDCImpl* impl = dc.GetImpl();
2743 wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2744 if (win_impl)
2745 {
2746 int w, h;
2747 win_impl->GetSize( &w, &h );
2748 CGContextRef cgctx = 0;
2749
2750 wxASSERT_MSG(win_impl->GetWindow(), "Invalid wxWindow in wxMacCoreGraphicsRenderer::CreateContext");
2751 if (win_impl->GetWindow())
2752 cgctx = (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2753
2754 if (cgctx != 0)
2755 return new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2756 }
2757 return NULL;
2758 }
2759
2760 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2761 {
2762 #ifdef __WXMAC__
2763 const wxDCImpl* impl = dc.GetImpl();
2764 wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2765 if (mem_impl)
2766 {
2767 int w, h;
2768 mem_impl->GetSize( &w, &h );
2769 return new wxMacCoreGraphicsContext( this,
2770 (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2771 }
2772 #endif
2773 return NULL;
2774 }
2775
2776 #if wxUSE_PRINTING_ARCHITECTURE
2777 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2778 {
2779 #ifdef __WXMAC__
2780 const wxDCImpl* impl = dc.GetImpl();
2781 wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2782 if (print_impl)
2783 {
2784 int w, h;
2785 print_impl->GetSize( &w, &h );
2786 return new wxMacCoreGraphicsContext( this,
2787 (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2788 }
2789 #endif
2790 return NULL;
2791 }
2792 #endif
2793
2794 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2795 {
2796 return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2797 }
2798
2799 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2800 {
2801 #if wxOSX_USE_CARBON
2802 return new wxMacCoreGraphicsContext(this,(WindowRef)window);
2803 #else
2804 wxUnusedVar(window);
2805 return NULL;
2806 #endif
2807 }
2808
2809 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
2810 {
2811 return new wxMacCoreGraphicsContext(this, window );
2812 }
2813
2814 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
2815 {
2816 return new wxMacCoreGraphicsContext(this);
2817 }
2818
2819 // Path
2820
2821 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
2822 {
2823 wxGraphicsPath m;
2824 m.SetRefData( new wxMacCoreGraphicsPathData(this));
2825 return m;
2826 }
2827
2828
2829 // Matrix
2830
2831 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
2832 wxDouble tx, wxDouble ty)
2833 {
2834 wxGraphicsMatrix m;
2835 wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
2836 data->Set( a,b,c,d,tx,ty ) ;
2837 m.SetRefData(data);
2838 return m;
2839 }
2840
2841 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
2842 {
2843 if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
2844 return wxNullGraphicsPen;
2845 else
2846 {
2847 wxGraphicsPen p;
2848 p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
2849 return p;
2850 }
2851 }
2852
2853 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
2854 {
2855 if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
2856 return wxNullGraphicsBrush;
2857 else
2858 {
2859 wxGraphicsBrush p;
2860 p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
2861 return p;
2862 }
2863 }
2864
2865 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
2866 {
2867 if ( bmp.Ok() )
2868 {
2869 wxGraphicsBitmap p;
2870 p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
2871 return p;
2872 }
2873 else
2874 return wxNullGraphicsBitmap;
2875 }
2876
2877 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmapFromNativeBitmap( void* bitmap )
2878 {
2879 if ( bitmap != NULL )
2880 {
2881 wxGraphicsBitmap p;
2882 p.SetRefData(new wxMacCoreGraphicsBitmapData( this , (CGImageRef) bitmap, false ));
2883 return p;
2884 }
2885 else
2886 return wxNullGraphicsBitmap;
2887 }
2888
2889 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2890 {
2891 wxMacCoreGraphicsBitmapData* refdata =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2892 CGImageRef img = refdata->GetBitmap();
2893 if ( img )
2894 {
2895 wxGraphicsBitmap p;
2896 CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h ));
2897 p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg, refdata->IsMonochrome() ) );
2898 return p;
2899 }
2900 else
2901 return wxNullGraphicsBitmap;
2902 }
2903
2904 wxGraphicsBrush
2905 wxMacCoreGraphicsRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
2906 wxDouble x2, wxDouble y2,
2907 const wxGraphicsGradientStops& stops)
2908 {
2909 wxGraphicsBrush p;
2910 wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2911 d->CreateLinearGradientBrush(x1, y1, x2, y2, stops);
2912 p.SetRefData(d);
2913 return p;
2914 }
2915
2916 wxGraphicsBrush
2917 wxMacCoreGraphicsRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
2918 wxDouble xc, wxDouble yc,
2919 wxDouble radius,
2920 const wxGraphicsGradientStops& stops)
2921 {
2922 wxGraphicsBrush p;
2923 wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2924 d->CreateRadialGradientBrush(xo, yo, xc, yc, radius, stops);
2925 p.SetRefData(d);
2926 return p;
2927 }
2928
2929 // sets the font
2930 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
2931 {
2932 if ( font.Ok() )
2933 {
2934 wxGraphicsFont p;
2935 p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
2936 return p;
2937 }
2938 else
2939 return wxNullGraphicsFont;
2940 }
2941
2942 //
2943 // CoreGraphics Helper Methods
2944 //
2945
2946 // Data Providers and Consumers
2947
2948 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
2949 {
2950 CFMutableDataRef data = (CFMutableDataRef) info;
2951 if ( data )
2952 {
2953 CFDataAppendBytes( data, (const UInt8*) bytes, count );
2954 }
2955 return count;
2956 }
2957
2958 void wxMacReleaseCFDataProviderCallback(void *info,
2959 const void *WXUNUSED(data),
2960 size_t WXUNUSED(count))
2961 {
2962 if ( info )
2963 CFRelease( (CFDataRef) info );
2964 }
2965
2966 void wxMacReleaseCFDataConsumerCallback( void *info )
2967 {
2968 if ( info )
2969 CFRelease( (CFDataRef) info );
2970 }
2971
2972 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
2973 {
2974 if ( data == NULL )
2975 return NULL;
2976
2977 return CGDataProviderCreateWithCFData( data );
2978 }
2979
2980 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
2981 {
2982 if ( data == NULL )
2983 return NULL;
2984
2985 return CGDataConsumerCreateWithCFData( data );
2986 }
2987
2988 void
2989 wxMacReleaseMemoryBufferProviderCallback(void *info,
2990 const void * WXUNUSED_UNLESS_DEBUG(data),
2991 size_t WXUNUSED(size))
2992 {
2993 wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
2994
2995 wxASSERT( data == membuf->GetData() ) ;
2996
2997 delete membuf ;
2998 }
2999
3000 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
3001 {
3002 wxMemoryBuffer* b = new wxMemoryBuffer( buf );
3003 if ( b->GetDataLen() == 0 )
3004 return NULL;
3005
3006 return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
3007 wxMacReleaseMemoryBufferProviderCallback );
3008 }
wxWidgets (Impactor)