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No real changes, just removed unnecessary SetInitialSize() call.
[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, wxDouble x2, wxDouble y2,
670 const wxColour&c1, const wxColour&c2 );
671 void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
672 const wxColour &oColor, const wxColour &cColor );
673
674 virtual bool IsShading() { return m_isShading; }
675 CGShadingRef GetShading() { return m_shading; }
676 protected:
677 CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 );
678 static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
679 virtual void Init();
680
681 wxMacCoreGraphicsColour m_cgColor;
682
683 bool m_isShading;
684 CGFunctionRef m_gradientFunction;
685 CGShadingRef m_shading;
686 CGFloat *m_gradientComponents;
687 };
688
689 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
690 {
691 Init();
692 }
693
694 void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
695 const wxColour&c1, const wxColour&c2 )
696 {
697 m_gradientFunction = CreateGradientFunction( c1, c2 );
698 m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) x1, (CGFloat) y1),
699 CGPointMake((CGFloat) x2,(CGFloat) y2), m_gradientFunction, true, true ) ;
700 m_isShading = true ;
701 }
702
703 void wxMacCoreGraphicsBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
704 const wxColour &oColor, const wxColour &cColor )
705 {
706 m_gradientFunction = CreateGradientFunction( oColor, cColor );
707 m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) xo,(CGFloat) yo), 0,
708 CGPointMake((CGFloat) xc,(CGFloat) yc), (CGFloat) radius, m_gradientFunction, true, true ) ;
709 m_isShading = true ;
710 }
711
712 wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer ),
713 m_cgColor( brush )
714 {
715 Init();
716
717 }
718
719 wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
720 {
721 if ( m_shading )
722 CGShadingRelease(m_shading);
723
724 if( m_gradientFunction )
725 CGFunctionRelease(m_gradientFunction);
726
727 delete[] m_gradientComponents;
728 }
729
730 void wxMacCoreGraphicsBrushData::Init()
731 {
732 m_gradientFunction = NULL;
733 m_shading = NULL;
734 m_gradientComponents = NULL;
735 m_isShading = false;
736 }
737
738 void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
739 {
740 CGContextRef cg = (CGContextRef) context->GetNativeContext();
741
742 if ( m_isShading )
743 {
744 // nothing to set as shades are processed by clipping using the path and filling
745 }
746 else
747 {
748 m_cgColor.Apply( cg );
749 }
750 }
751
752 void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
753 {
754 CGFloat* colors = (CGFloat*) info ;
755 CGFloat f = *in;
756 for( int i = 0 ; i < 4 ; ++i )
757 {
758 out[i] = colors[i] + ( colors[4+i] - colors[i] ) * f;
759 }
760 }
761
762 CGFunctionRef wxMacCoreGraphicsBrushData::CreateGradientFunction( const wxColour& c1, const wxColour& c2 )
763 {
764 static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL };
765 static const CGFloat input_value_range [2] = { 0, 1 };
766 static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 };
767 m_gradientComponents = new CGFloat[8] ;
768 m_gradientComponents[0] = (CGFloat) (c1.Red() / 255.0);
769 m_gradientComponents[1] = (CGFloat) (c1.Green() / 255.0);
770 m_gradientComponents[2] = (CGFloat) (c1.Blue() / 255.0);
771 m_gradientComponents[3] = (CGFloat) (c1.Alpha() / 255.0);
772 m_gradientComponents[4] = (CGFloat) (c2.Red() / 255.0);
773 m_gradientComponents[5] = (CGFloat) (c2.Green() / 255.0);
774 m_gradientComponents[6] = (CGFloat) (c2.Blue() / 255.0);
775 m_gradientComponents[7] = (CGFloat) (c2.Alpha() / 255.0);
776
777 return CGFunctionCreate ( m_gradientComponents, 1,
778 input_value_range,
779 4,
780 output_value_ranges,
781 &callbacks);
782 }
783
784 //
785 // Font
786 //
787
788 #if wxOSX_USE_IPHONE
789
790 extern UIFont* CreateUIFont( const wxFont& font );
791 extern void DrawTextInContext( CGContextRef context, CGPoint where, UIFont *font, NSString* text );
792 extern CGSize MeasureTextInContext( UIFont *font, NSString* text );
793
794 #endif
795
796 class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
797 {
798 public:
799 wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
800 ~wxMacCoreGraphicsFontData();
801
802 #if wxOSX_USE_ATSU_TEXT
803 virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
804 #endif
805 #if wxOSX_USE_CORE_TEXT
806 CTFontRef OSXGetCTFont() const { return m_ctFont ; }
807 #endif
808 wxColour GetColour() const { return m_colour ; }
809
810 bool GetUnderlined() const { return m_underlined ; }
811 #if wxOSX_USE_IPHONE
812 UIFont* GetUIFont() const { return m_uiFont; }
813 #endif
814 private :
815 wxColour m_colour;
816 bool m_underlined;
817 #if wxOSX_USE_ATSU_TEXT
818 ATSUStyle m_macATSUIStyle;
819 #endif
820 #if wxOSX_USE_CORE_TEXT
821 wxCFRef< CTFontRef > m_ctFont;
822 #endif
823 #if wxOSX_USE_IPHONE
824 UIFont* m_uiFont;
825 #endif
826 };
827
828 wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
829 {
830 m_colour = col;
831 m_underlined = font.GetUnderlined();
832
833 #if wxOSX_USE_CORE_TEXT
834 m_ctFont.reset( wxMacCreateCTFont( font ) );
835 #endif
836 #if wxOSX_USE_IPHONE
837 m_uiFont = CreateUIFont(font);
838 wxMacCocoaRetain( m_uiFont );
839 #endif
840 #if wxOSX_USE_ATSU_TEXT
841 OSStatus status = noErr;
842 m_macATSUIStyle = NULL;
843
844 status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
845
846 wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
847
848 // we need the scale here ...
849
850 Fixed atsuSize = IntToFixed( int( 1 * font.GetPointSize()) );
851 RGBColor atsuColor ;
852 col.GetRGBColor( &atsuColor );
853 ATSUAttributeTag atsuTags[] =
854 {
855 kATSUSizeTag ,
856 kATSUColorTag ,
857 };
858 ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
859 {
860 sizeof( Fixed ) ,
861 sizeof( RGBColor ) ,
862 };
863 ATSUAttributeValuePtr atsuValues[WXSIZEOF(atsuTags)] =
864 {
865 &atsuSize ,
866 &atsuColor ,
867 };
868
869 status = ::ATSUSetAttributes(
870 m_macATSUIStyle, WXSIZEOF(atsuTags),
871 atsuTags, atsuSizes, atsuValues);
872
873 wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
874 #endif
875 }
876
877 wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
878 {
879 #if wxOSX_USE_CORE_TEXT
880 #endif
881 #if wxOSX_USE_ATSU_TEXT
882 if ( m_macATSUIStyle )
883 {
884 ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
885 m_macATSUIStyle = NULL;
886 }
887 #endif
888 #if wxOSX_USE_IPHONE
889 wxMacCocoaRelease( m_uiFont );
890 #endif
891 }
892
893 class wxMacCoreGraphicsBitmapData : public wxGraphicsObjectRefData
894 {
895 public:
896 wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome );
897 ~wxMacCoreGraphicsBitmapData();
898
899 virtual CGImageRef GetBitmap() { return m_bitmap; }
900 bool IsMonochrome() { return m_monochrome; }
901 private :
902 CGImageRef m_bitmap;
903 bool m_monochrome;
904 };
905
906 wxMacCoreGraphicsBitmapData::wxMacCoreGraphicsBitmapData( wxGraphicsRenderer* renderer, CGImageRef bitmap, bool monochrome ) : wxGraphicsObjectRefData( renderer ),
907 m_bitmap(bitmap), m_monochrome(monochrome)
908 {
909 }
910
911 wxMacCoreGraphicsBitmapData::~wxMacCoreGraphicsBitmapData()
912 {
913 CGImageRelease( m_bitmap );
914 }
915
916 //
917 // Graphics Matrix
918 //
919
920 //-----------------------------------------------------------------------------
921 // wxMacCoreGraphicsMatrix declaration
922 //-----------------------------------------------------------------------------
923
924 class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
925 {
926 public :
927 wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
928
929 virtual ~wxMacCoreGraphicsMatrixData() ;
930
931 virtual wxGraphicsObjectRefData *Clone() const ;
932
933 // concatenates the matrix
934 virtual void Concat( const wxGraphicsMatrixData *t );
935
936 // sets the matrix to the respective values
937 virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
938 wxDouble tx=0.0, wxDouble ty=0.0);
939
940 // gets the component valuess of the matrix
941 virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL, wxDouble* c=NULL,
942 wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
943
944 // makes this the inverse matrix
945 virtual void Invert();
946
947 // returns true if the elements of the transformation matrix are equal ?
948 virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
949
950 // return true if this is the identity matrix
951 virtual bool IsIdentity() const;
952
953 //
954 // transformation
955 //
956
957 // add the translation to this matrix
958 virtual void Translate( wxDouble dx , wxDouble dy );
959
960 // add the scale to this matrix
961 virtual void Scale( wxDouble xScale , wxDouble yScale );
962
963 // add the rotation to this matrix (radians)
964 virtual void Rotate( wxDouble angle );
965
966 //
967 // apply the transforms
968 //
969
970 // applies that matrix to the point
971 virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
972
973 // applies the matrix except for translations
974 virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
975
976 // returns the native representation
977 virtual void * GetNativeMatrix() const;
978
979 private :
980 CGAffineTransform m_matrix;
981 } ;
982
983 //-----------------------------------------------------------------------------
984 // wxMacCoreGraphicsMatrix implementation
985 //-----------------------------------------------------------------------------
986
987 wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
988 {
989 }
990
991 wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
992 {
993 }
994
995 wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
996 {
997 wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
998 m->m_matrix = m_matrix ;
999 return m;
1000 }
1001
1002 // concatenates the matrix
1003 void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
1004 {
1005 m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
1006 }
1007
1008 // sets the matrix to the respective values
1009 void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
1010 wxDouble tx, wxDouble ty)
1011 {
1012 m_matrix = CGAffineTransformMake((CGFloat) a,(CGFloat) b,(CGFloat) c,(CGFloat) d,(CGFloat) tx,(CGFloat) ty);
1013 }
1014
1015 // gets the component valuess of the matrix
1016 void wxMacCoreGraphicsMatrixData::Get(wxDouble* a, wxDouble* b, wxDouble* c,
1017 wxDouble* d, wxDouble* tx, wxDouble* ty) const
1018 {
1019 if (a) *a = m_matrix.a;
1020 if (b) *b = m_matrix.b;
1021 if (c) *c = m_matrix.c;
1022 if (d) *d = m_matrix.d;
1023 if (tx) *tx= m_matrix.tx;
1024 if (ty) *ty= m_matrix.ty;
1025 }
1026
1027 // makes this the inverse matrix
1028 void wxMacCoreGraphicsMatrixData::Invert()
1029 {
1030 m_matrix = CGAffineTransformInvert( m_matrix );
1031 }
1032
1033 // returns true if the elements of the transformation matrix are equal ?
1034 bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
1035 {
1036 return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
1037 }
1038
1039 // return true if this is the identity matrix
1040 bool wxMacCoreGraphicsMatrixData::IsIdentity() const
1041 {
1042 return ( m_matrix.a == 1 && m_matrix.d == 1 &&
1043 m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
1044 }
1045
1046 //
1047 // transformation
1048 //
1049
1050 // add the translation to this matrix
1051 void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
1052 {
1053 m_matrix = CGAffineTransformTranslate( m_matrix, (CGFloat) dx, (CGFloat) dy);
1054 }
1055
1056 // add the scale to this matrix
1057 void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1058 {
1059 m_matrix = CGAffineTransformScale( m_matrix, (CGFloat) xScale, (CGFloat) yScale);
1060 }
1061
1062 // add the rotation to this matrix (radians)
1063 void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
1064 {
1065 m_matrix = CGAffineTransformRotate( m_matrix, (CGFloat) angle);
1066 }
1067
1068 //
1069 // apply the transforms
1070 //
1071
1072 // applies that matrix to the point
1073 void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1074 {
1075 CGPoint pt = CGPointApplyAffineTransform( CGPointMake((CGFloat) *x,(CGFloat) *y), m_matrix);
1076
1077 *x = pt.x;
1078 *y = pt.y;
1079 }
1080
1081 // applies the matrix except for translations
1082 void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1083 {
1084 CGSize sz = CGSizeApplyAffineTransform( CGSizeMake((CGFloat) *dx,(CGFloat) *dy) , m_matrix );
1085 *dx = sz.width;
1086 *dy = sz.height;
1087 }
1088
1089 // returns the native representation
1090 void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
1091 {
1092 return (void*) &m_matrix;
1093 }
1094
1095 //
1096 // Graphics Path
1097 //
1098
1099 //-----------------------------------------------------------------------------
1100 // wxMacCoreGraphicsPath declaration
1101 //-----------------------------------------------------------------------------
1102
1103 class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
1104 {
1105 public :
1106 wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
1107
1108 ~wxMacCoreGraphicsPathData();
1109
1110 virtual wxGraphicsObjectRefData *Clone() const;
1111
1112 // begins a new subpath at (x,y)
1113 virtual void MoveToPoint( wxDouble x, wxDouble y );
1114
1115 // adds a straight line from the current point to (x,y)
1116 virtual void AddLineToPoint( wxDouble x, wxDouble y );
1117
1118 // adds a cubic Bezier curve from the current point, using two control points and an end point
1119 virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
1120
1121 // closes the current sub-path
1122 virtual void CloseSubpath();
1123
1124 // gets the last point of the current path, (0,0) if not yet set
1125 virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
1126
1127 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1128 virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
1129
1130 //
1131 // These are convenience functions which - if not available natively will be assembled
1132 // using the primitives from above
1133 //
1134
1135 // adds a quadratic Bezier curve from the current point, using a control point and an end point
1136 virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
1137
1138 // appends a rectangle as a new closed subpath
1139 virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1140
1141 // appends an ellipsis as a new closed subpath fitting the passed rectangle
1142 virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
1143
1144 // draws a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
1145 virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
1146
1147 // adds another path
1148 virtual void AddPath( const wxGraphicsPathData* path );
1149
1150 // returns the native path
1151 virtual void * GetNativePath() const { return m_path; }
1152
1153 // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
1154 virtual void UnGetNativePath(void *WXUNUSED(p)) const {}
1155
1156 // transforms each point of this path by the matrix
1157 virtual void Transform( const wxGraphicsMatrixData* matrix );
1158
1159 // gets the bounding box enclosing all points (possibly including control points)
1160 virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
1161
1162 virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
1163 private :
1164 CGMutablePathRef m_path;
1165 };
1166
1167 //-----------------------------------------------------------------------------
1168 // wxMacCoreGraphicsPath implementation
1169 //-----------------------------------------------------------------------------
1170
1171 wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
1172 {
1173 if ( path )
1174 m_path = path;
1175 else
1176 m_path = CGPathCreateMutable();
1177 }
1178
1179 wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
1180 {
1181 CGPathRelease( m_path );
1182 }
1183
1184 wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
1185 {
1186 wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
1187 return clone ;
1188 }
1189
1190
1191 // opens (starts) a new subpath
1192 void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
1193 {
1194 CGPathMoveToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1195 }
1196
1197 void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
1198 {
1199 CGPathAddLineToPoint( m_path , NULL , (CGFloat) x1 , (CGFloat) y1 );
1200 }
1201
1202 void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
1203 {
1204 CGPathAddCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) cx2, (CGFloat) cy2, (CGFloat) x , (CGFloat) y );
1205 }
1206
1207 void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
1208 {
1209 CGPathAddQuadCurveToPoint( m_path , NULL , (CGFloat) cx1 , (CGFloat) cy1 , (CGFloat) x , (CGFloat) y );
1210 }
1211
1212 void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1213 {
1214 CGRect cgRect = { { (CGFloat) x , (CGFloat) y } , { (CGFloat) w , (CGFloat) h } };
1215 CGPathAddRect( m_path , NULL , cgRect );
1216 }
1217
1218 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
1219 {
1220 CGPathAddArc( m_path , NULL , (CGFloat) x , (CGFloat) y , (CGFloat) r , (CGFloat) 0.0 , (CGFloat) (2 * M_PI) , true );
1221 }
1222
1223 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
1224 void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
1225 {
1226 // inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
1227 CGPathAddArc( m_path, NULL , (CGFloat) x, (CGFloat) y, (CGFloat) r, (CGFloat) startAngle, (CGFloat) endAngle, !clockwise);
1228 }
1229
1230 void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
1231 {
1232 CGPathAddArcToPoint( m_path, NULL , (CGFloat) x1, (CGFloat) y1, (CGFloat) x2, (CGFloat) y2, (CGFloat) r);
1233 }
1234
1235 void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
1236 {
1237 CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
1238 }
1239
1240 // closes the current subpath
1241 void wxMacCoreGraphicsPathData::CloseSubpath()
1242 {
1243 CGPathCloseSubpath( m_path );
1244 }
1245
1246 // gets the last point of the current path, (0,0) if not yet set
1247 void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
1248 {
1249 CGPoint p = CGPathGetCurrentPoint( m_path );
1250 *x = p.x;
1251 *y = p.y;
1252 }
1253
1254 // transforms each point of this path by the matrix
1255 void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
1256 {
1257 CGMutablePathRef p = CGPathCreateMutable() ;
1258 CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
1259 CGPathRelease( m_path );
1260 m_path = p;
1261 }
1262
1263 // gets the bounding box enclosing all points (possibly including control points)
1264 void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
1265 {
1266 CGRect bounds = CGPathGetBoundingBox( m_path ) ;
1267 *x = bounds.origin.x;
1268 *y = bounds.origin.y;
1269 *w = bounds.size.width;
1270 *h = bounds.size.height;
1271 }
1272
1273 bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle) const
1274 {
1275 return CGPathContainsPoint( m_path, NULL, CGPointMake((CGFloat) x,(CGFloat) y), fillStyle == wxODDEVEN_RULE );
1276 }
1277
1278 //
1279 // Graphics Context
1280 //
1281
1282 //-----------------------------------------------------------------------------
1283 // wxMacCoreGraphicsContext declaration
1284 //-----------------------------------------------------------------------------
1285
1286 class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
1287 {
1288 public:
1289 wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width = 0, wxDouble height = 0 );
1290
1291 #if wxOSX_USE_CARBON
1292 wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
1293 #endif
1294
1295 wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
1296
1297 wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
1298
1299 wxMacCoreGraphicsContext();
1300
1301 ~wxMacCoreGraphicsContext();
1302
1303 void Init();
1304
1305 // returns the size of the graphics context in device coordinates
1306 virtual void GetSize( wxDouble* width, wxDouble* height);
1307
1308 virtual void StartPage( wxDouble width, wxDouble height );
1309
1310 virtual void EndPage();
1311
1312 virtual void Flush();
1313
1314 // push the current state of the context, ie the transformation matrix on a stack
1315 virtual void PushState();
1316
1317 // pops a stored state from the stack
1318 virtual void PopState();
1319
1320 // clips drawings to the region
1321 virtual void Clip( const wxRegion &region );
1322
1323 // clips drawings to the rect
1324 virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1325
1326 // resets the clipping to original extent
1327 virtual void ResetClip();
1328
1329 virtual void * GetNativeContext();
1330
1331 virtual bool SetAntialiasMode(wxAntialiasMode antialias);
1332
1333 virtual bool SetCompositionMode(wxCompositionMode op);
1334
1335 virtual void BeginLayer(wxDouble opacity);
1336
1337 virtual void EndLayer();
1338
1339 //
1340 // transformation
1341 //
1342
1343 // translate
1344 virtual void Translate( wxDouble dx , wxDouble dy );
1345
1346 // scale
1347 virtual void Scale( wxDouble xScale , wxDouble yScale );
1348
1349 // rotate (radians)
1350 virtual void Rotate( wxDouble angle );
1351
1352 // concatenates this transform with the current transform of this context
1353 virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
1354
1355 // sets the transform of this context
1356 virtual void SetTransform( const wxGraphicsMatrix& matrix );
1357
1358 // gets the matrix of this context
1359 virtual wxGraphicsMatrix GetTransform() const;
1360 //
1361 // setting the paint
1362 //
1363
1364 // strokes along a path with the current pen
1365 virtual void StrokePath( const wxGraphicsPath &path );
1366
1367 // fills a path with the current brush
1368 virtual void FillPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1369
1370 // draws a path by first filling and then stroking
1371 virtual void DrawPath( const wxGraphicsPath &path, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
1372
1373 virtual bool ShouldOffset() const
1374 {
1375 int penwidth = 0 ;
1376 if ( !m_pen.IsNull() )
1377 {
1378 penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
1379 if ( penwidth == 0 )
1380 penwidth = 1;
1381 }
1382 return ( penwidth % 2 ) == 1;
1383 }
1384 //
1385 // text
1386 //
1387
1388 virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
1389 wxDouble *descent, wxDouble *externalLeading ) const;
1390
1391 virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
1392
1393 //
1394 // image support
1395 //
1396
1397 virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1398
1399 virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1400
1401 virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
1402
1403 void SetNativeContext( CGContextRef cg );
1404
1405 DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsContext)
1406
1407 private:
1408 bool EnsureIsValid();
1409
1410 virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
1411 virtual void DoDrawRotatedText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
1412
1413 CGContextRef m_cgContext;
1414 #if wxOSX_USE_CARBON
1415 WindowRef m_windowRef;
1416 #else
1417 WXWidget m_view;
1418 #endif
1419 bool m_contextSynthesized;
1420 CGAffineTransform m_windowTransform;
1421 wxDouble m_width;
1422 wxDouble m_height;
1423 bool m_invisible;
1424
1425 #if wxOSX_USE_COCOA_OR_CARBON
1426 wxCFRef<HIShapeRef> m_clipRgn;
1427 #endif
1428 };
1429
1430 //-----------------------------------------------------------------------------
1431 // device context implementation
1432 //
1433 // more and more of the dc functionality should be implemented by calling
1434 // the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
1435 // also coordinate conversions should be moved to native matrix ops
1436 //-----------------------------------------------------------------------------
1437
1438 // we always stock two context states, one at entry, to be able to preserve the
1439 // state we were called with, the other one after changing to HI Graphics orientation
1440 // (this one is used for getting back clippings etc)
1441
1442 //-----------------------------------------------------------------------------
1443 // wxMacCoreGraphicsContext implementation
1444 //-----------------------------------------------------------------------------
1445
1446 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
1447
1448 class wxQuartzOffsetHelper
1449 {
1450 public :
1451 wxQuartzOffsetHelper( CGContextRef cg , bool offset )
1452 {
1453 m_cg = cg;
1454 m_offset = offset;
1455 if ( m_offset )
1456 CGContextTranslateCTM( m_cg, (CGFloat) 0.5, (CGFloat) 0.5 );
1457 }
1458 ~wxQuartzOffsetHelper( )
1459 {
1460 if ( m_offset )
1461 CGContextTranslateCTM( m_cg, (CGFloat) -0.5, (CGFloat) -0.5 );
1462 }
1463 public :
1464 CGContextRef m_cg;
1465 bool m_offset;
1466 } ;
1467
1468 void wxMacCoreGraphicsContext::Init()
1469 {
1470 m_cgContext = NULL;
1471 m_contextSynthesized = false;
1472 m_width = 0;
1473 m_height = 0;
1474 #if wxOSX_USE_CARBON
1475 m_windowRef = NULL;
1476 #endif
1477 #if wxOSX_USE_COCOA_OR_IPHONE
1478 m_view = NULL;
1479 #endif
1480 m_invisible = false;
1481 }
1482
1483 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer)
1484 {
1485 Init();
1486 SetNativeContext(cgcontext);
1487 m_width = width;
1488 m_height = height;
1489 }
1490
1491 #if wxOSX_USE_CARBON
1492 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
1493 {
1494 Init();
1495 m_windowRef = window;
1496 }
1497 #endif
1498
1499 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
1500 {
1501 Init();
1502
1503 wxSize sz = window->GetSize();
1504 m_width = sz.x;
1505 m_height = sz.y;
1506
1507 #if wxOSX_USE_COCOA_OR_IPHONE
1508 m_view = window->GetHandle();
1509
1510 #if wxOSX_USE_COCOA
1511 if ( ! window->GetPeer()->IsFlipped() )
1512 {
1513 m_windowTransform = CGAffineTransformMakeTranslation( 0 , m_height );
1514 m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1515 }
1516 else
1517 #endif
1518 {
1519 m_windowTransform = CGAffineTransformIdentity;
1520 }
1521 #else
1522 int originX , originY;
1523 originX = originY = 0;
1524 Rect bounds = { 0,0,0,0 };
1525 m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
1526 window->MacWindowToRootWindow( &originX , &originY );
1527 GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
1528 m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
1529 m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
1530 m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
1531 #endif
1532 }
1533
1534 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
1535 {
1536 Init();
1537 }
1538
1539 wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
1540 {
1541 Init();
1542 wxLogDebug(wxT("Illegal Constructor called"));
1543 }
1544
1545 wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
1546 {
1547 SetNativeContext(NULL);
1548 }
1549
1550 void wxMacCoreGraphicsContext::GetSize( wxDouble* width, wxDouble* height)
1551 {
1552 *width = m_width;
1553 *height = m_height;
1554 }
1555
1556
1557 void wxMacCoreGraphicsContext::StartPage( wxDouble width, wxDouble height )
1558 {
1559 CGRect r;
1560 if ( width != 0 && height != 0)
1561 r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) width , (CGFloat) height );
1562 else
1563 r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) m_width , (CGFloat) m_height );
1564
1565 CGContextBeginPage(m_cgContext, &r );
1566 // CGContextTranslateCTM( m_cgContext , 0 , height == 0 ? m_height : height );
1567 // CGContextScaleCTM( m_cgContext , 1 , -1 );
1568 }
1569
1570 void wxMacCoreGraphicsContext::EndPage()
1571 {
1572 CGContextEndPage(m_cgContext);
1573 }
1574
1575 void wxMacCoreGraphicsContext::Flush()
1576 {
1577 CGContextFlush(m_cgContext);
1578 }
1579
1580 bool wxMacCoreGraphicsContext::EnsureIsValid()
1581 {
1582 if ( !m_cgContext )
1583 {
1584 if (m_invisible)
1585 return false;
1586
1587 #if wxOSX_USE_COCOA
1588 if ( wxOSXLockFocus(m_view) )
1589 {
1590 m_cgContext = wxOSXGetContextFromCurrentContext();
1591 wxASSERT_MSG( m_cgContext != NULL, wxT("Unable to retrieve drawing context from View"));
1592 }
1593 else
1594 {
1595 m_invisible = true;
1596 }
1597 #endif
1598 #if wxOSX_USE_IPHONE
1599 m_cgContext = wxOSXGetContextFromCurrentContext();
1600 if ( m_cgContext == NULL )
1601 {
1602 m_invisible = true;
1603 }
1604 #endif
1605 #if wxOSX_USE_CARBON
1606 OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
1607 if ( status != noErr )
1608 {
1609 wxFAIL_MSG("Cannot nest wxDCs on the same window");
1610 }
1611 #endif
1612 if ( m_cgContext )
1613 {
1614 CGContextSaveGState( m_cgContext );
1615 CGContextConcatCTM( m_cgContext, m_windowTransform );
1616 CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
1617 m_contextSynthesized = true;
1618 #if wxOSX_USE_COCOA_OR_CARBON
1619 if ( m_clipRgn.get() )
1620 {
1621 // the clip region is in device coordinates, so we convert this again to user coordinates
1622 wxCFRef<HIMutableShapeRef> hishape( HIShapeCreateMutableCopy( m_clipRgn ) );
1623 CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero,m_windowTransform);
1624 HIShapeOffset( hishape, -transformedOrigin.x, -transformedOrigin.y );
1625 // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1626 if ( HIShapeIsEmpty(hishape))
1627 {
1628 CGRect empty = CGRectMake( 0,0,0,0 );
1629 CGContextClipToRect( m_cgContext, empty );
1630 }
1631 else
1632 {
1633 HIShapeReplacePathInCGContext( hishape, m_cgContext );
1634 CGContextClip( m_cgContext );
1635 }
1636 }
1637 #endif
1638 CGContextSaveGState( m_cgContext );
1639
1640 #if 0 // turn on for debugging of clientdc
1641 static float color = 0.5 ;
1642 static int channel = 0 ;
1643 CGRect bounds = CGRectMake(-1000,-1000,2000,2000);
1644 CGContextSetRGBFillColor( m_cgContext, channel == 0 ? color : 0.5 ,
1645 channel == 1 ? color : 0.5 , channel == 2 ? color : 0.5 , 1 );
1646 CGContextFillRect( m_cgContext, bounds );
1647 color += 0.1 ;
1648 if ( color > 0.9 )
1649 {
1650 color = 0.5 ;
1651 channel++ ;
1652 if ( channel == 3 )
1653 channel = 0 ;
1654 }
1655 #endif
1656 }
1657 }
1658 return m_cgContext != NULL;
1659 }
1660
1661 bool wxMacCoreGraphicsContext::SetAntialiasMode(wxAntialiasMode antialias)
1662 {
1663 if (!EnsureIsValid())
1664 return true;
1665
1666 if (m_antialias == antialias)
1667 return true;
1668
1669 m_antialias = antialias;
1670
1671 bool antialiasMode;
1672 switch (antialias)
1673 {
1674 case wxANTIALIAS_DEFAULT:
1675 antialiasMode = true;
1676 break;
1677 case wxANTIALIAS_NONE:
1678 antialiasMode = false;
1679 break;
1680 default:
1681 return false;
1682 }
1683 CGContextSetShouldAntialias(m_cgContext, antialiasMode);
1684 return true;
1685 }
1686
1687 bool wxMacCoreGraphicsContext::SetCompositionMode(wxCompositionMode op)
1688 {
1689 if (!EnsureIsValid())
1690 return true;
1691
1692 if ( m_composition == op )
1693 return true;
1694
1695 m_composition = op;
1696
1697 if (m_composition == wxCOMPOSITION_DEST)
1698 return true;
1699
1700 #if wxOSX_USE_COCOA_OR_CARBON
1701 if ( UMAGetSystemVersion() < 0x1060 )
1702 {
1703 CGCompositeOperation cop = kCGCompositeOperationSourceOver;
1704 CGBlendMode mode = kCGBlendModeNormal;
1705 switch( op )
1706 {
1707 case wxCOMPOSITION_CLEAR:
1708 cop = kCGCompositeOperationClear;
1709 break;
1710 case wxCOMPOSITION_SOURCE:
1711 cop = kCGCompositeOperationCopy;
1712 break;
1713 case wxCOMPOSITION_OVER:
1714 mode = kCGBlendModeNormal;
1715 break;
1716 case wxCOMPOSITION_IN:
1717 cop = kCGCompositeOperationSourceIn;
1718 break;
1719 case wxCOMPOSITION_OUT:
1720 cop = kCGCompositeOperationSourceOut;
1721 break;
1722 case wxCOMPOSITION_ATOP:
1723 cop = kCGCompositeOperationSourceAtop;
1724 break;
1725 case wxCOMPOSITION_DEST_OVER:
1726 cop = kCGCompositeOperationDestinationOver;
1727 break;
1728 case wxCOMPOSITION_DEST_IN:
1729 cop = kCGCompositeOperationDestinationIn;
1730 break;
1731 case wxCOMPOSITION_DEST_OUT:
1732 cop = kCGCompositeOperationDestinationOut;
1733 break;
1734 case wxCOMPOSITION_DEST_ATOP:
1735 cop = kCGCompositeOperationDestinationAtop;
1736 break;
1737 case wxCOMPOSITION_XOR:
1738 cop = kCGCompositeOperationXOR;
1739 break;
1740 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1741 case wxCOMPOSITION_ADD:
1742 mode = kCGBlendModePlusLighter ;
1743 break;
1744 #endif
1745 default:
1746 return false;
1747 }
1748 if ( cop != kCGCompositeOperationSourceOver )
1749 CGContextSetCompositeOperation(m_cgContext, cop);
1750 else
1751 CGContextSetBlendMode(m_cgContext, mode);
1752 }
1753 #endif
1754 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
1755 else
1756 {
1757 CGBlendMode mode = kCGBlendModeNormal;
1758 switch( op )
1759 {
1760 case wxCOMPOSITION_CLEAR:
1761 mode = kCGBlendModeClear;
1762 break;
1763 case wxCOMPOSITION_SOURCE:
1764 mode = kCGBlendModeCopy;
1765 break;
1766 case wxCOMPOSITION_OVER:
1767 mode = kCGBlendModeNormal;
1768 break;
1769 case wxCOMPOSITION_IN:
1770 mode = kCGBlendModeSourceIn;
1771 break;
1772 case wxCOMPOSITION_OUT:
1773 mode = kCGBlendModeSourceOut;
1774 break;
1775 case wxCOMPOSITION_ATOP:
1776 mode = kCGBlendModeSourceAtop;
1777 break;
1778 case wxCOMPOSITION_DEST_OVER:
1779 mode = kCGBlendModeDestinationOver;
1780 break;
1781 case wxCOMPOSITION_DEST_IN:
1782 mode = kCGBlendModeDestinationIn;
1783 break;
1784 case wxCOMPOSITION_DEST_OUT:
1785 mode = kCGBlendModeDestinationOut;
1786 break;
1787 case wxCOMPOSITION_DEST_ATOP:
1788 mode = kCGBlendModeDestinationAtop;
1789 break;
1790 case wxCOMPOSITION_XOR:
1791 mode = kCGBlendModeXOR;
1792 break;
1793
1794 case wxCOMPOSITION_ADD:
1795 mode = kCGBlendModePlusLighter ;
1796 break;
1797 default:
1798 return false;
1799 }
1800 CGContextSetBlendMode(m_cgContext, mode);
1801 }
1802 #endif
1803 return true;
1804 }
1805
1806 void wxMacCoreGraphicsContext::BeginLayer(wxDouble opacity)
1807 {
1808 CGContextSaveGState(m_cgContext);
1809 CGContextSetAlpha(m_cgContext, (CGFloat) opacity);
1810 CGContextBeginTransparencyLayer(m_cgContext, 0);
1811 }
1812
1813 void wxMacCoreGraphicsContext::EndLayer()
1814 {
1815 CGContextEndTransparencyLayer(m_cgContext);
1816 CGContextRestoreGState(m_cgContext);
1817 }
1818
1819 void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
1820 {
1821 #if wxOSX_USE_COCOA_OR_CARBON
1822 if( m_cgContext )
1823 {
1824 wxCFRef<HIShapeRef> shape = wxCFRefFromGet(region.GetWXHRGN());
1825 // if the shape is empty, HIShapeReplacePathInCGContext doesn't work
1826 if ( HIShapeIsEmpty(shape))
1827 {
1828 CGRect empty = CGRectMake( 0,0,0,0 );
1829 CGContextClipToRect( m_cgContext, empty );
1830 }
1831 else
1832 {
1833 HIShapeReplacePathInCGContext( shape, m_cgContext );
1834 CGContextClip( m_cgContext );
1835 }
1836 }
1837 else
1838 {
1839 // this offsetting to device coords is not really correct, but since we cannot apply affine transforms
1840 // to regions we try at least to have correct translations
1841 HIMutableShapeRef mutableShape = HIShapeCreateMutableCopy( region.GetWXHRGN() );
1842
1843 CGPoint transformedOrigin = CGPointApplyAffineTransform( CGPointZero, m_windowTransform );
1844 HIShapeOffset( mutableShape, transformedOrigin.x, transformedOrigin.y );
1845 m_clipRgn.reset(mutableShape);
1846 }
1847 #else
1848 // allow usage as measuring context
1849 // wxASSERT_MSG( m_cgContext != NULL, "Needs a valid context for clipping" );
1850 #endif
1851 }
1852
1853 // clips drawings to the rect
1854 void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1855 {
1856 CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
1857 if ( m_cgContext )
1858 {
1859 CGContextClipToRect( m_cgContext, r );
1860 }
1861 else
1862 {
1863 #if wxOSX_USE_COCOA_OR_CARBON
1864 // the clipping itself must be stored as device coordinates, otherwise
1865 // we cannot apply it back correctly
1866 r.origin= CGPointApplyAffineTransform( r.origin, m_windowTransform );
1867 m_clipRgn.reset(HIShapeCreateWithRect(&r));
1868 #else
1869 // allow usage as measuring context
1870 // wxFAIL_MSG( "Needs a valid context for clipping" );
1871 #endif
1872 }
1873 }
1874
1875 // resets the clipping to original extent
1876 void wxMacCoreGraphicsContext::ResetClip()
1877 {
1878 if ( m_cgContext )
1879 {
1880 // there is no way for clearing the clip, we can only revert to the stored
1881 // state, but then we have to make sure everything else is NOT restored
1882 CGAffineTransform transform = CGContextGetCTM( m_cgContext );
1883 CGContextRestoreGState( m_cgContext );
1884 CGContextSaveGState( m_cgContext );
1885 CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
1886 transformNew = CGAffineTransformInvert( transformNew ) ;
1887 CGContextConcatCTM( m_cgContext, transformNew);
1888 CGContextConcatCTM( m_cgContext, transform);
1889 }
1890 else
1891 {
1892 #if wxOSX_USE_COCOA_OR_CARBON
1893 m_clipRgn.reset();
1894 #else
1895 // allow usage as measuring context
1896 // wxFAIL_MSG( "Needs a valid context for clipping" );
1897 #endif
1898 }
1899 }
1900
1901 void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
1902 {
1903 if ( m_pen.IsNull() )
1904 return ;
1905
1906 if (!EnsureIsValid())
1907 return;
1908
1909 if (m_composition == wxCOMPOSITION_DEST)
1910 return;
1911
1912 wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1913
1914 ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1915 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1916 CGContextStrokePath( m_cgContext );
1917 }
1918
1919 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1920 {
1921 if (!EnsureIsValid())
1922 return;
1923
1924 if (m_composition == wxCOMPOSITION_DEST)
1925 return;
1926
1927 if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1928 {
1929 // when using shading, we cannot draw pen and brush at the same time
1930 // revert to the base implementation of first filling and then stroking
1931 wxGraphicsContext::DrawPath( path, fillStyle );
1932 return;
1933 }
1934
1935 CGPathDrawingMode mode = kCGPathFill ;
1936 if ( m_brush.IsNull() )
1937 {
1938 if ( m_pen.IsNull() )
1939 return;
1940 else
1941 mode = kCGPathStroke;
1942 }
1943 else
1944 {
1945 if ( m_pen.IsNull() )
1946 {
1947 if ( fillStyle == wxODDEVEN_RULE )
1948 mode = kCGPathEOFill;
1949 else
1950 mode = kCGPathFill;
1951 }
1952 else
1953 {
1954 if ( fillStyle == wxODDEVEN_RULE )
1955 mode = kCGPathEOFillStroke;
1956 else
1957 mode = kCGPathFillStroke;
1958 }
1959 }
1960
1961 if ( !m_brush.IsNull() )
1962 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1963 if ( !m_pen.IsNull() )
1964 ((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
1965
1966 wxQuartzOffsetHelper helper( m_cgContext , ShouldOffset() );
1967
1968 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1969 CGContextDrawPath( m_cgContext , mode );
1970 }
1971
1972 void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
1973 {
1974 if ( m_brush.IsNull() )
1975 return;
1976
1977 if (!EnsureIsValid())
1978 return;
1979
1980 if (m_composition == wxCOMPOSITION_DEST)
1981 return;
1982
1983 if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
1984 {
1985 CGContextSaveGState( m_cgContext );
1986 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1987 CGContextClip( m_cgContext );
1988 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
1989 CGContextRestoreGState( m_cgContext);
1990 }
1991 else
1992 {
1993 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
1994 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
1995 if ( fillStyle == wxODDEVEN_RULE )
1996 CGContextEOFillPath( m_cgContext );
1997 else
1998 CGContextFillPath( m_cgContext );
1999 }
2000 }
2001
2002 void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
2003 {
2004 // we allow either setting or clearing but not replacing
2005 wxASSERT( m_cgContext == NULL || cg == NULL );
2006
2007 if ( m_cgContext )
2008 {
2009 CGContextRestoreGState( m_cgContext );
2010 CGContextRestoreGState( m_cgContext );
2011 if ( m_contextSynthesized )
2012 {
2013 // TODO: in case of performance problems, try issuing this not too
2014 // frequently (half of refresh rate)
2015 CGContextFlush(m_cgContext);
2016 #if wxOSX_USE_CARBON
2017 QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
2018 #endif
2019 #if wxOSX_USE_COCOA
2020 wxOSXUnlockFocus(m_view);
2021 #endif
2022 }
2023 else
2024 CGContextRelease(m_cgContext);
2025 }
2026
2027 m_cgContext = cg;
2028
2029 // FIXME: This check is needed because currently we need to use a DC/GraphicsContext
2030 // in order to get font properties, like wxFont::GetPixelSize, but since we don't have
2031 // a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
2032 // for this one operation.
2033
2034 // When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
2035 // can be removed.
2036 if (m_cgContext)
2037 {
2038 CGContextRetain(m_cgContext);
2039 CGContextSaveGState( m_cgContext );
2040 CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
2041 CGContextSaveGState( m_cgContext );
2042 m_contextSynthesized = false;
2043 }
2044 }
2045
2046 void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
2047 {
2048 if ( m_cgContext )
2049 CGContextTranslateCTM( m_cgContext, (CGFloat) dx, (CGFloat) dy );
2050 else
2051 m_windowTransform = CGAffineTransformTranslate(m_windowTransform, (CGFloat) dx, (CGFloat) dy);
2052 }
2053
2054 void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
2055 {
2056 if ( m_cgContext )
2057 CGContextScaleCTM( m_cgContext , (CGFloat) xScale , (CGFloat) yScale );
2058 else
2059 m_windowTransform = CGAffineTransformScale(m_windowTransform, (CGFloat) xScale, (CGFloat) yScale);
2060 }
2061
2062 void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
2063 {
2064 if ( m_cgContext )
2065 CGContextRotateCTM( m_cgContext , (CGFloat) angle );
2066 else
2067 m_windowTransform = CGAffineTransformRotate(m_windowTransform, (CGFloat) angle);
2068 }
2069
2070 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2071 {
2072 wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
2073 DrawBitmap(bitmap, x, y, w, h);
2074 }
2075
2076 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2077 {
2078 if (!EnsureIsValid())
2079 return;
2080
2081 if (m_composition == wxCOMPOSITION_DEST)
2082 return;
2083
2084 #ifdef __WXMAC__
2085 wxMacCoreGraphicsBitmapData* refdata =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2086 CGImageRef image = refdata->GetBitmap();
2087 CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
2088 if ( refdata->IsMonochrome() == 1 )
2089 {
2090 // is is a mask, the '1' in the mask tell where to draw the current brush
2091 if ( !m_brush.IsNull() )
2092 {
2093 if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
2094 {
2095 // TODO clip to mask
2096 /*
2097 CGContextSaveGState( m_cgContext );
2098 CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
2099 CGContextClip( m_cgContext );
2100 CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
2101 CGContextRestoreGState( m_cgContext);
2102 */
2103 }
2104 else
2105 {
2106 ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
2107 wxMacDrawCGImage( m_cgContext , &r , image );
2108 }
2109 }
2110 }
2111 else
2112 {
2113 wxMacDrawCGImage( m_cgContext , &r , image );
2114 }
2115 #endif
2116 }
2117
2118 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2119 {
2120 if (!EnsureIsValid())
2121 return;
2122
2123 if (m_composition == wxCOMPOSITION_DEST)
2124 return;
2125
2126 CGRect r = CGRectMake( (CGFloat) 0.0 , (CGFloat) 0.0 , (CGFloat) w , (CGFloat) h );
2127 CGContextSaveGState( m_cgContext );
2128 CGContextTranslateCTM( m_cgContext,(CGFloat) x ,(CGFloat) (y + h) );
2129 CGContextScaleCTM( m_cgContext, 1, -1 );
2130 #if wxOSX_USE_COCOA_OR_CARBON
2131 PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
2132 NULL , kPlotIconRefNormalFlags , icon.GetHICON() );
2133 #endif
2134 CGContextRestoreGState( m_cgContext );
2135 }
2136
2137 void wxMacCoreGraphicsContext::PushState()
2138 {
2139 if (!EnsureIsValid())
2140 return;
2141
2142 CGContextSaveGState( m_cgContext );
2143 }
2144
2145 void wxMacCoreGraphicsContext::PopState()
2146 {
2147 if (!EnsureIsValid())
2148 return;
2149
2150 CGContextRestoreGState( m_cgContext );
2151 }
2152
2153 void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDouble y )
2154 {
2155 wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2156
2157 if (!EnsureIsValid())
2158 return;
2159
2160 if (m_composition == wxCOMPOSITION_DEST)
2161 return;
2162
2163 #if wxOSX_USE_CORE_TEXT
2164 if ( UMAGetSystemVersion() >= 0x1050 )
2165 {
2166 wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2167 wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2168 CTFontRef font = fref->OSXGetCTFont();
2169 CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2170 CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
2171 wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
2172 CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
2173 CFTypeRef values[] = { font, col, underlined };
2174 wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2175 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2176 wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2177 wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2178
2179 y += CTFontGetAscent(font);
2180
2181 CGContextSaveGState(m_cgContext);
2182 CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2183 CGContextScaleCTM(m_cgContext, 1, -1);
2184 CGContextSetTextPosition(m_cgContext, 0, 0);
2185 CTLineDraw( line, m_cgContext );
2186 CGContextRestoreGState(m_cgContext);
2187 CFRelease( col );
2188 return;
2189 }
2190 #endif
2191 #if wxOSX_USE_ATSU_TEXT
2192 {
2193 DrawText(str, x, y, 0.0);
2194 return;
2195 }
2196 #endif
2197 #if wxOSX_USE_IPHONE
2198 wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2199
2200 CGContextSaveGState(m_cgContext);
2201
2202 CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
2203 CGContextSetTextDrawingMode (m_cgContext, kCGTextFill);
2204 CGContextSetFillColorWithColor( m_cgContext, col );
2205
2206 wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2207 DrawTextInContext( m_cgContext, CGPointMake( x, y ), fref->GetUIFont() , text.AsNSString() );
2208
2209 CGContextRestoreGState(m_cgContext);
2210 CFRelease( col );
2211 #endif
2212 }
2213
2214 void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
2215 wxDouble x, wxDouble y,
2216 wxDouble angle)
2217 {
2218 wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2219
2220 if (!EnsureIsValid())
2221 return;
2222
2223 if (m_composition == wxCOMPOSITION_DEST)
2224 return;
2225
2226 #if wxOSX_USE_CORE_TEXT
2227 if ( UMAGetSystemVersion() >= 0x1050 )
2228 {
2229 // default implementation takes care of rotation and calls non rotated DrawText afterwards
2230 wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2231 return;
2232 }
2233 #endif
2234 #if wxOSX_USE_ATSU_TEXT
2235 {
2236 OSStatus status = noErr;
2237 ATSUTextLayout atsuLayout;
2238 wxMacUniCharBuffer unibuf( str );
2239 UniCharCount chars = unibuf.GetChars();
2240
2241 ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2242 status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2243 &chars , &style , &atsuLayout );
2244
2245 wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
2246
2247 status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2248 wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2249
2250 int iAngle = int( angle * RAD2DEG );
2251 if ( abs(iAngle) > 0 )
2252 {
2253 Fixed atsuAngle = IntToFixed( iAngle );
2254 ATSUAttributeTag atsuTags[] =
2255 {
2256 kATSULineRotationTag ,
2257 };
2258 ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2259 {
2260 sizeof( Fixed ) ,
2261 };
2262 ATSUAttributeValuePtr atsuValues[WXSIZEOF(atsuTags)] =
2263 {
2264 &atsuAngle ,
2265 };
2266 status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2267 atsuTags, atsuSizes, atsuValues );
2268 }
2269
2270 {
2271 ATSUAttributeTag atsuTags[] =
2272 {
2273 kATSUCGContextTag ,
2274 };
2275 ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
2276 {
2277 sizeof( CGContextRef ) ,
2278 };
2279 ATSUAttributeValuePtr atsuValues[WXSIZEOF(atsuTags)] =
2280 {
2281 &m_cgContext ,
2282 };
2283 status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
2284 atsuTags, atsuSizes, atsuValues );
2285 }
2286
2287 ATSUTextMeasurement textBefore, textAfter;
2288 ATSUTextMeasurement ascent, descent;
2289
2290 status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2291 &textBefore , &textAfter, &ascent , &descent );
2292
2293 wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2294
2295 Rect rect;
2296 x += (int)(sin(angle) * FixedToInt(ascent));
2297 y += (int)(cos(angle) * FixedToInt(ascent));
2298
2299 status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2300 IntToFixed(x) , IntToFixed(y) , &rect );
2301 wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
2302
2303 CGContextSaveGState(m_cgContext);
2304 CGContextTranslateCTM(m_cgContext, (CGFloat) x, (CGFloat) y);
2305 CGContextScaleCTM(m_cgContext, 1, -1);
2306 status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2307 IntToFixed(0) , IntToFixed(0) );
2308
2309 wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
2310
2311 CGContextRestoreGState(m_cgContext);
2312
2313 ::ATSUDisposeTextLayout(atsuLayout);
2314
2315 return;
2316 }
2317 #endif
2318 #if wxOSX_USE_IPHONE
2319 // default implementation takes care of rotation and calls non rotated DrawText afterwards
2320 wxGraphicsContext::DoDrawRotatedText( str, x, y, angle );
2321 #endif
2322 }
2323
2324 void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
2325 wxDouble *descent, wxDouble *externalLeading ) const
2326 {
2327 wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::GetTextExtent - no valid font set") );
2328
2329 if ( width )
2330 *width = 0;
2331 if ( height )
2332 *height = 0;
2333 if ( descent )
2334 *descent = 0;
2335 if ( externalLeading )
2336 *externalLeading = 0;
2337
2338 if (str.empty())
2339 return;
2340
2341 #if wxOSX_USE_CORE_TEXT
2342 if ( UMAGetSystemVersion() >= 0x1050 )
2343 {
2344 wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2345 CTFontRef font = fref->OSXGetCTFont();
2346
2347 wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2348 CFStringRef keys[] = { kCTFontAttributeName };
2349 CFTypeRef values[] = { font };
2350 wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2351 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2352 wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
2353 wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2354
2355 double w;
2356 CGFloat a, d, l;
2357
2358 w = CTLineGetTypographicBounds(line, &a, &d, &l) ;
2359
2360 if ( height )
2361 *height = a+d+l;
2362 if ( descent )
2363 *descent = d;
2364 if ( externalLeading )
2365 *externalLeading = l;
2366 if ( width )
2367 *width = w;
2368 return;
2369 }
2370 #endif
2371 #if wxOSX_USE_ATSU_TEXT
2372 {
2373 OSStatus status = noErr;
2374
2375 ATSUTextLayout atsuLayout;
2376 wxMacUniCharBuffer unibuf( str );
2377 UniCharCount chars = unibuf.GetChars();
2378
2379 ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2380 status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2381 &chars , &style , &atsuLayout );
2382
2383 wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2384
2385 status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2386 wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2387
2388 ATSUTextMeasurement textBefore, textAfter;
2389 ATSUTextMeasurement textAscent, textDescent;
2390
2391 status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
2392 &textBefore , &textAfter, &textAscent , &textDescent );
2393
2394 if ( height )
2395 *height = FixedToInt(textAscent + textDescent);
2396 if ( descent )
2397 *descent = FixedToInt(textDescent);
2398 if ( externalLeading )
2399 *externalLeading = 0;
2400 if ( width )
2401 *width = FixedToInt(textAfter - textBefore);
2402
2403 ::ATSUDisposeTextLayout(atsuLayout);
2404
2405 return;
2406 }
2407 #endif
2408 #if wxOSX_USE_IPHONE
2409 wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2410
2411 wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
2412 CGSize sz = MeasureTextInContext( fref->GetUIFont() , text.AsNSString() );
2413
2414 if ( height )
2415 *height = sz.height;
2416 /*
2417 if ( descent )
2418 *descent = FixedToInt(textDescent);
2419 if ( externalLeading )
2420 *externalLeading = 0;
2421 */
2422 if ( width )
2423 *width = sz.width;
2424 #endif
2425 }
2426
2427 void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
2428 {
2429 widths.Empty();
2430 widths.Add(0, text.length());
2431
2432 wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
2433
2434 if (text.empty())
2435 return;
2436
2437 #if wxOSX_USE_CORE_TEXT
2438 {
2439 wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
2440 CTFontRef font = fref->OSXGetCTFont();
2441
2442 wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
2443 CFStringRef keys[] = { kCTFontAttributeName };
2444 CFTypeRef values[] = { font };
2445 wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
2446 WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
2447 wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
2448 wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
2449
2450 int chars = text.length();
2451 for ( int pos = 0; pos < (int)chars; pos ++ )
2452 {
2453 widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5;
2454 }
2455
2456 return;
2457 }
2458 #endif
2459 #if wxOSX_USE_ATSU_TEXT
2460 {
2461 OSStatus status = noErr;
2462 ATSUTextLayout atsuLayout;
2463 wxMacUniCharBuffer unibuf( text );
2464 UniCharCount chars = unibuf.GetChars();
2465
2466 ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
2467 status = ::ATSUCreateTextLayoutWithTextPtr( unibuf.GetBuffer() , 0 , chars , chars , 1 ,
2468 &chars , &style , &atsuLayout );
2469
2470 wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
2471
2472 status = ::ATSUSetTransientFontMatching( atsuLayout , true );
2473 wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
2474
2475 // new implementation from JS, keep old one just in case
2476 #if 0
2477 for ( int pos = 0; pos < (int)chars; pos ++ )
2478 {
2479 unsigned long actualNumberOfBounds = 0;
2480 ATSTrapezoid glyphBounds;
2481
2482 // We get a single bound, since the text should only require one. If it requires more, there is an issue
2483 OSStatus result;
2484 result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2485 kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2486 if (result != noErr || actualNumberOfBounds != 1 )
2487 return;
2488
2489 widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
2490 //unsigned char uch = s[i];
2491 }
2492 #else
2493 ATSLayoutRecord *layoutRecords = NULL;
2494 ItemCount glyphCount = 0;
2495
2496 // Get the glyph extents
2497 OSStatus err = ::ATSUDirectGetLayoutDataArrayPtrFromTextLayout(atsuLayout,
2498 0,
2499 kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2500 (void **)
2501 &layoutRecords,
2502 &glyphCount);
2503 wxASSERT(glyphCount == (text.length()+1));
2504
2505 if ( err == noErr && glyphCount == (text.length()+1))
2506 {
2507 for ( int pos = 1; pos < (int)glyphCount ; pos ++ )
2508 {
2509 widths[pos-1] = FixedToInt( layoutRecords[pos].realPos );
2510 }
2511 }
2512
2513 ::ATSUDirectReleaseLayoutDataArrayPtr(NULL,
2514 kATSUDirectDataLayoutRecordATSLayoutRecordCurrent,
2515 (void **) &layoutRecords);
2516 #endif
2517 ::ATSUDisposeTextLayout(atsuLayout);
2518 }
2519 #endif
2520 #if wxOSX_USE_IPHONE
2521 // TODO core graphics text implementation here
2522 #endif
2523 }
2524
2525 void * wxMacCoreGraphicsContext::GetNativeContext()
2526 {
2527 return m_cgContext;
2528 }
2529
2530 // concatenates this transform with the current transform of this context
2531 void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
2532 {
2533 if ( m_cgContext )
2534 CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2535 else
2536 m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
2537 }
2538
2539 // sets the transform of this context
2540 void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
2541 {
2542 if ( m_cgContext )
2543 {
2544 CGAffineTransform transform = CGContextGetCTM( m_cgContext );
2545 transform = CGAffineTransformInvert( transform ) ;
2546 CGContextConcatCTM( m_cgContext, transform);
2547 CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
2548 }
2549 else
2550 {
2551 m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
2552 }
2553 }
2554
2555 // gets the matrix of this context
2556 wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
2557 {
2558 wxGraphicsMatrix m = CreateMatrix();
2559 *((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
2560 CGContextGetCTM( m_cgContext ));
2561 return m;
2562 }
2563
2564 //
2565 // Renderer
2566 //
2567
2568 //-----------------------------------------------------------------------------
2569 // wxMacCoreGraphicsRenderer declaration
2570 //-----------------------------------------------------------------------------
2571
2572 class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
2573 {
2574 public :
2575 wxMacCoreGraphicsRenderer() {}
2576
2577 virtual ~wxMacCoreGraphicsRenderer() {}
2578
2579 // Context
2580
2581 virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
2582 virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
2583 #if wxUSE_PRINTING_ARCHITECTURE
2584 virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
2585 #endif
2586
2587 virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
2588
2589 virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
2590
2591 virtual wxGraphicsContext * CreateContext( wxWindow* window );
2592
2593 virtual wxGraphicsContext * CreateMeasuringContext();
2594
2595 // Path
2596
2597 virtual wxGraphicsPath CreatePath();
2598
2599 // Matrix
2600
2601 virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
2602 wxDouble tx=0.0, wxDouble ty=0.0);
2603
2604
2605 virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
2606
2607 virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
2608
2609 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2610 virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2611 const wxColour&c1, const wxColour&c2) ;
2612
2613 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2614 // with radius r and color cColor
2615 virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2616 const wxColour &oColor, const wxColour &cColor) ;
2617
2618 // sets the font
2619 virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
2620
2621 // create a native bitmap representation
2622 virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
2623
2624 // create a graphics bitmap from a native bitmap
2625 virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
2626
2627 // create a native bitmap representation
2628 virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) ;
2629 private :
2630 DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
2631 } ;
2632
2633 //-----------------------------------------------------------------------------
2634 // wxMacCoreGraphicsRenderer implementation
2635 //-----------------------------------------------------------------------------
2636
2637 IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
2638
2639 static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
2640
2641 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2642 {
2643 return &gs_MacCoreGraphicsRenderer;
2644 }
2645
2646 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc )
2647 {
2648 const wxDCImpl* impl = dc.GetImpl();
2649 wxWindowDCImpl *win_impl = wxDynamicCast( impl, wxWindowDCImpl );
2650 if (win_impl)
2651 {
2652 int w, h;
2653 win_impl->GetSize( &w, &h );
2654 CGContextRef cgctx = 0;
2655
2656 wxASSERT_MSG(win_impl->GetWindow(), "Invalid wxWindow in wxMacCoreGraphicsRenderer::CreateContext");
2657 if (win_impl->GetWindow())
2658 cgctx = (CGContextRef)(win_impl->GetWindow()->MacGetCGContextRef());
2659
2660 if (cgctx != 0)
2661 return new wxMacCoreGraphicsContext( this, cgctx, (wxDouble) w, (wxDouble) h );
2662 }
2663 return NULL;
2664 }
2665
2666 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxMemoryDC& dc )
2667 {
2668 #ifdef __WXMAC__
2669 const wxDCImpl* impl = dc.GetImpl();
2670 wxMemoryDCImpl *mem_impl = wxDynamicCast( impl, wxMemoryDCImpl );
2671 if (mem_impl)
2672 {
2673 int w, h;
2674 mem_impl->GetSize( &w, &h );
2675 return new wxMacCoreGraphicsContext( this,
2676 (CGContextRef)(mem_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2677 }
2678 #endif
2679 return NULL;
2680 }
2681
2682 #if wxUSE_PRINTING_ARCHITECTURE
2683 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxPrinterDC& dc )
2684 {
2685 #ifdef __WXMAC__
2686 const wxDCImpl* impl = dc.GetImpl();
2687 wxPrinterDCImpl *print_impl = wxDynamicCast( impl, wxPrinterDCImpl );
2688 if (print_impl)
2689 {
2690 int w, h;
2691 print_impl->GetSize( &w, &h );
2692 return new wxMacCoreGraphicsContext( this,
2693 (CGContextRef)(print_impl->GetGraphicsContext()->GetNativeContext()), (wxDouble) w, (wxDouble) h );
2694 }
2695 #endif
2696 return NULL;
2697 }
2698 #endif
2699
2700 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
2701 {
2702 return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
2703 }
2704
2705 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
2706 {
2707 #if wxOSX_USE_CARBON
2708 return new wxMacCoreGraphicsContext(this,(WindowRef)window);
2709 #else
2710 wxUnusedVar(window);
2711 return NULL;
2712 #endif
2713 }
2714
2715 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
2716 {
2717 return new wxMacCoreGraphicsContext(this, window );
2718 }
2719
2720 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
2721 {
2722 return new wxMacCoreGraphicsContext(this);
2723 }
2724
2725 // Path
2726
2727 wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
2728 {
2729 wxGraphicsPath m;
2730 m.SetRefData( new wxMacCoreGraphicsPathData(this));
2731 return m;
2732 }
2733
2734
2735 // Matrix
2736
2737 wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
2738 wxDouble tx, wxDouble ty)
2739 {
2740 wxGraphicsMatrix m;
2741 wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
2742 data->Set( a,b,c,d,tx,ty ) ;
2743 m.SetRefData(data);
2744 return m;
2745 }
2746
2747 wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
2748 {
2749 if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
2750 return wxNullGraphicsPen;
2751 else
2752 {
2753 wxGraphicsPen p;
2754 p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
2755 return p;
2756 }
2757 }
2758
2759 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
2760 {
2761 if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
2762 return wxNullGraphicsBrush;
2763 else
2764 {
2765 wxGraphicsBrush p;
2766 p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
2767 return p;
2768 }
2769 }
2770
2771 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
2772 {
2773 if ( bmp.Ok() )
2774 {
2775 wxGraphicsBitmap p;
2776 p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
2777 return p;
2778 }
2779 else
2780 return wxNullGraphicsBitmap;
2781 }
2782
2783 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmapFromNativeBitmap( void* bitmap )
2784 {
2785 if ( bitmap != NULL )
2786 {
2787 wxGraphicsBitmap p;
2788 p.SetRefData(new wxMacCoreGraphicsBitmapData( this , (CGImageRef) bitmap, false ));
2789 return p;
2790 }
2791 else
2792 return wxNullGraphicsBitmap;
2793 }
2794
2795 wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
2796 {
2797 wxMacCoreGraphicsBitmapData* refdata =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
2798 CGImageRef img = refdata->GetBitmap();
2799 if ( img )
2800 {
2801 wxGraphicsBitmap p;
2802 CGImageRef subimg = CGImageCreateWithImageInRect(img,CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h ));
2803 p.SetRefData(new wxMacCoreGraphicsBitmapData( this , subimg, refdata->IsMonochrome() ) );
2804 return p;
2805 }
2806 else
2807 return wxNullGraphicsBitmap;
2808 }
2809
2810 // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
2811 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
2812 const wxColour&c1, const wxColour&c2)
2813 {
2814 wxGraphicsBrush p;
2815 wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2816 d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
2817 p.SetRefData(d);
2818 return p;
2819 }
2820
2821 // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
2822 // with radius r and color cColor
2823 wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
2824 const wxColour &oColor, const wxColour &cColor)
2825 {
2826 wxGraphicsBrush p;
2827 wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
2828 d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
2829 p.SetRefData(d);
2830 return p;
2831 }
2832
2833 // sets the font
2834 wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
2835 {
2836 if ( font.Ok() )
2837 {
2838 wxGraphicsFont p;
2839 p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
2840 return p;
2841 }
2842 else
2843 return wxNullGraphicsFont;
2844 }
2845
2846 //
2847 // CoreGraphics Helper Methods
2848 //
2849
2850 // Data Providers and Consumers
2851
2852 size_t UMAPutBytesCFRefCallback( void *info, const void *bytes, size_t count )
2853 {
2854 CFMutableDataRef data = (CFMutableDataRef) info;
2855 if ( data )
2856 {
2857 CFDataAppendBytes( data, (const UInt8*) bytes, count );
2858 }
2859 return count;
2860 }
2861
2862 void wxMacReleaseCFDataProviderCallback(void *info,
2863 const void *WXUNUSED(data),
2864 size_t WXUNUSED(count))
2865 {
2866 if ( info )
2867 CFRelease( (CFDataRef) info );
2868 }
2869
2870 void wxMacReleaseCFDataConsumerCallback( void *info )
2871 {
2872 if ( info )
2873 CFRelease( (CFDataRef) info );
2874 }
2875
2876 CGDataProviderRef wxMacCGDataProviderCreateWithCFData( CFDataRef data )
2877 {
2878 if ( data == NULL )
2879 return NULL;
2880
2881 return CGDataProviderCreateWithCFData( data );
2882 }
2883
2884 CGDataConsumerRef wxMacCGDataConsumerCreateWithCFData( CFMutableDataRef data )
2885 {
2886 if ( data == NULL )
2887 return NULL;
2888
2889 return CGDataConsumerCreateWithCFData( data );
2890 }
2891
2892 void
2893 wxMacReleaseMemoryBufferProviderCallback(void *info,
2894 const void * WXUNUSED_UNLESS_DEBUG(data),
2895 size_t WXUNUSED(size))
2896 {
2897 wxMemoryBuffer* membuf = (wxMemoryBuffer*) info ;
2898
2899 wxASSERT( data == membuf->GetData() ) ;
2900
2901 delete membuf ;
2902 }
2903
2904 CGDataProviderRef wxMacCGDataProviderCreateWithMemoryBuffer( const wxMemoryBuffer& buf )
2905 {
2906 wxMemoryBuffer* b = new wxMemoryBuffer( buf );
2907 if ( b->GetDataLen() == 0 )
2908 return NULL;
2909
2910 return CGDataProviderCreateWithData( b , (const void *) b->GetData() , b->GetDataLen() ,
2911 wxMacReleaseMemoryBufferProviderCallback );
2912 }
wxWidgets (Impactor)