source: trunk/src/gui/painting/qpaintengine_mac.cpp@ 564

Last change on this file since 564 was 561, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.1 sources.
File size: 63.0 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the QtGui module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include <qbitmap.h>
43#include <qpaintdevice.h>
44#include <private/qpaintengine_mac_p.h>
45#include <qpainterpath.h>
46#include <qpixmapcache.h>
47#include <private/qpaintengine_raster_p.h>
48#include <private/qprintengine_mac_p.h>
49#include <qprinter.h>
50#include <qstack.h>
51#include <qtextcodec.h>
52#include <qwidget.h>
53#include <qvarlengtharray.h>
54#include <qdebug.h>
55#include <qcoreapplication.h>
56#include <qmath.h>
57
58#include <private/qfont_p.h>
59#include <private/qfontengine_p.h>
60#include <private/qnumeric_p.h>
61#include <private/qpainter_p.h>
62#include <private/qpainterpath_p.h>
63#include <private/qpixmap_mac_p.h>
64#include <private/qt_mac_p.h>
65#include <private/qtextengine_p.h>
66#include <private/qwidget_p.h>
67#include <private/qt_cocoa_helpers_mac_p.h>
68
69#include <string.h>
70
71QT_BEGIN_NAMESPACE
72
73extern int qt_antialiasing_threshold; // QApplication.cpp
74
75/*****************************************************************************
76 External functions
77 *****************************************************************************/
78extern CGImageRef qt_mac_create_imagemask(const QPixmap &px, const QRectF &sr); //qpixmap_mac.cpp
79extern QPoint qt_mac_posInWindow(const QWidget *w); //qwidget_mac.cpp
80extern OSWindowRef qt_mac_window_for(const QWidget *); //qwidget_mac.cpp
81extern CGContextRef qt_mac_cg_context(const QPaintDevice *); //qpaintdevice_mac.cpp
82extern void qt_mac_dispose_rgn(RgnHandle r); //qregion_mac.cpp
83extern QPixmap qt_pixmapForBrush(int, bool); //qbrush.cpp
84
85void qt_mac_clip_cg(CGContextRef hd, const QRegion &rgn, CGAffineTransform *orig_xform);
86
87
88//Implemented for qt_mac_p.h
89QMacCGContext::QMacCGContext(QPainter *p)
90{
91 QPaintEngine *pe = p->paintEngine();
92 if (pe->type() == QPaintEngine::MacPrinter)
93 pe = static_cast<QMacPrintEngine*>(pe)->paintEngine();
94 pe->syncState();
95 context = 0;
96 if(pe->type() == QPaintEngine::CoreGraphics)
97 context = static_cast<QCoreGraphicsPaintEngine*>(pe)->handle();
98
99 int devType = p->device()->devType();
100 if (pe->type() == QPaintEngine::Raster
101 && (devType == QInternal::Widget || devType == QInternal::Pixmap)) {
102
103 extern CGColorSpaceRef qt_mac_colorSpaceForDeviceType(const QPaintDevice *paintDevice);
104 CGColorSpaceRef colorspace = qt_mac_colorSpaceForDeviceType(pe->paintDevice());
105 uint flags = kCGImageAlphaPremultipliedFirst;
106#ifdef kCGBitmapByteOrder32Host //only needed because CGImage.h added symbols in the minor version
107 flags |= kCGBitmapByteOrder32Host;
108#endif
109 const QImage *image = (const QImage *) pe->paintDevice();
110
111 context = CGBitmapContextCreate((void *) image->bits(), image->width(), image->height(),
112 8, image->bytesPerLine(), colorspace, flags);
113
114 CGContextTranslateCTM(context, 0, image->height());
115 CGContextScaleCTM(context, 1, -1);
116
117 if (devType == QInternal::Widget) {
118 QRegion clip = p->paintEngine()->systemClip();
119 QTransform native = p->deviceTransform();
120 QTransform logical = p->combinedTransform();
121 if (p->hasClipping()) {
122 QRegion r = p->clipRegion();
123 r.translate(native.dx() - logical.dx(), native.dy() - logical.dy());
124 if (clip.isEmpty())
125 clip = r;
126 else
127 clip &= r;
128 }
129 qt_mac_clip_cg(context, clip, 0);
130
131 QPainterState *state = static_cast<QPainterState *>(pe->state);
132 Q_ASSERT(state);
133 if (!state->redirectionMatrix.isIdentity())
134 CGContextTranslateCTM(context, state->redirectionMatrix.dx(), state->redirectionMatrix.dy());
135 }
136 }
137 CGContextRetain(context);
138}
139
140
141/*****************************************************************************
142 QCoreGraphicsPaintEngine utility functions
143 *****************************************************************************/
144
145//conversion
146inline static float qt_mac_convert_color_to_cg(int c) { return ((float)c * 1000 / 255) / 1000; }
147inline static int qt_mac_convert_color_from_cg(float c) { return qRound(c * 255); }
148CGAffineTransform qt_mac_convert_transform_to_cg(const QTransform &t) {
149 return CGAffineTransformMake(t.m11(), t.m12(), t.m21(), t.m22(), t.dx(), t.dy());
150}
151
152CGColorSpaceRef qt_mac_colorSpaceForDeviceType(const QPaintDevice *paintDevice)
153{
154 bool isWidget = (paintDevice->devType() == QInternal::Widget);
155 return QCoreGraphicsPaintEngine::macDisplayColorSpace(isWidget ? static_cast<const QWidget *>(paintDevice)
156 : 0);
157}
158
159inline static QCFType<CGColorRef> cgColorForQColor(const QColor &col, QPaintDevice *pdev)
160{
161 CGFloat components[] = {
162 qt_mac_convert_color_to_cg(col.red()),
163 qt_mac_convert_color_to_cg(col.green()),
164 qt_mac_convert_color_to_cg(col.blue()),
165 qt_mac_convert_color_to_cg(col.alpha())
166 };
167 return CGColorCreate(qt_mac_colorSpaceForDeviceType(pdev), components);
168}
169
170// There's architectural problems with using native gradients
171// on the Mac at the moment, so disable them.
172// #define QT_MAC_USE_NATIVE_GRADIENTS
173
174#ifdef QT_MAC_USE_NATIVE_GRADIENTS
175static bool drawGradientNatively(const QGradient *gradient)
176{
177 return gradient->spread() == QGradient::PadSpread;
178}
179
180// gradiant callback
181static void qt_mac_color_gradient_function(void *info, const CGFloat *in, CGFloat *out)
182{
183 QBrush *brush = static_cast<QBrush *>(info);
184 Q_ASSERT(brush && brush->gradient());
185
186 const QGradientStops stops = brush->gradient()->stops();
187 const int n = stops.count();
188 Q_ASSERT(n >= 1);
189 const QGradientStop *begin = stops.constBegin();
190 const QGradientStop *end = begin + n;
191
192 qreal p = in[0];
193 const QGradientStop *i = begin;
194 while (i != end && i->first < p)
195 ++i;
196
197 QRgb c;
198 if (i == begin) {
199 c = begin->second.rgba();
200 } else if (i == end) {
201 c = (end - 1)->second.rgba();
202 } else {
203 const QGradientStop &s1 = *(i - 1);
204 const QGradientStop &s2 = *i;
205 qreal p1 = s1.first;
206 qreal p2 = s2.first;
207 QRgb c1 = s1.second.rgba();
208 QRgb c2 = s2.second.rgba();
209 int idist = 256 * (p - p1) / (p2 - p1);
210 int dist = 256 - idist;
211 c = qRgba(INTERPOLATE_PIXEL_256(qRed(c1), dist, qRed(c2), idist),
212 INTERPOLATE_PIXEL_256(qGreen(c1), dist, qGreen(c2), idist),
213 INTERPOLATE_PIXEL_256(qBlue(c1), dist, qBlue(c2), idist),
214 INTERPOLATE_PIXEL_256(qAlpha(c1), dist, qAlpha(c2), idist));
215 }
216
217 out[0] = qt_mac_convert_color_to_cg(qRed(c));
218 out[1] = qt_mac_convert_color_to_cg(qGreen(c));
219 out[2] = qt_mac_convert_color_to_cg(qBlue(c));
220 out[3] = qt_mac_convert_color_to_cg(qAlpha(c));
221}
222#endif
223
224//clipping handling
225void QCoreGraphicsPaintEnginePrivate::resetClip()
226{
227 static bool inReset = false;
228 if (inReset)
229 return;
230 inReset = true;
231
232 CGAffineTransform old_xform = CGContextGetCTM(hd);
233
234 //setup xforms
235 CGContextConcatCTM(hd, CGAffineTransformInvert(old_xform));
236 while (stackCount > 0) {
237 restoreGraphicsState();
238 }
239 saveGraphicsState();
240 inReset = false;
241 //reset xforms
242 CGContextConcatCTM(hd, CGAffineTransformInvert(CGContextGetCTM(hd)));
243 CGContextConcatCTM(hd, old_xform);
244}
245
246static CGRect qt_mac_compose_rect(const QRectF &r, float off=0)
247{
248 return CGRectMake(r.x()+off, r.y()+off, r.width(), r.height());
249}
250
251static CGMutablePathRef qt_mac_compose_path(const QPainterPath &p, float off=0)
252{
253 CGMutablePathRef ret = CGPathCreateMutable();
254 QPointF startPt;
255 for (int i=0; i<p.elementCount(); ++i) {
256 const QPainterPath::Element &elm = p.elementAt(i);
257 switch (elm.type) {
258 case QPainterPath::MoveToElement:
259 if(i > 0
260 && p.elementAt(i - 1).x == startPt.x()
261 && p.elementAt(i - 1).y == startPt.y())
262 CGPathCloseSubpath(ret);
263 startPt = QPointF(elm.x, elm.y);
264 CGPathMoveToPoint(ret, 0, elm.x+off, elm.y+off);
265 break;
266 case QPainterPath::LineToElement:
267 CGPathAddLineToPoint(ret, 0, elm.x+off, elm.y+off);
268 break;
269 case QPainterPath::CurveToElement:
270 Q_ASSERT(p.elementAt(i+1).type == QPainterPath::CurveToDataElement);
271 Q_ASSERT(p.elementAt(i+2).type == QPainterPath::CurveToDataElement);
272 CGPathAddCurveToPoint(ret, 0,
273 elm.x+off, elm.y+off,
274 p.elementAt(i+1).x+off, p.elementAt(i+1).y+off,
275 p.elementAt(i+2).x+off, p.elementAt(i+2).y+off);
276 i+=2;
277 break;
278 default:
279 qFatal("QCoreGraphicsPaintEngine::drawPath(), unhandled type: %d", elm.type);
280 break;
281 }
282 }
283 if(!p.isEmpty()
284 && p.elementAt(p.elementCount() - 1).x == startPt.x()
285 && p.elementAt(p.elementCount() - 1).y == startPt.y())
286 CGPathCloseSubpath(ret);
287 return ret;
288}
289
290CGColorSpaceRef QCoreGraphicsPaintEngine::m_genericColorSpace = 0;
291QHash<CGDirectDisplayID, CGColorSpaceRef> QCoreGraphicsPaintEngine::m_displayColorSpaceHash;
292bool QCoreGraphicsPaintEngine::m_postRoutineRegistered = false;
293
294CGColorSpaceRef QCoreGraphicsPaintEngine::macGenericColorSpace()
295{
296#if 0
297 if (!m_genericColorSpace) {
298#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
299 if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4) {
300 m_genericColorSpace = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
301 } else
302#endif
303 {
304 m_genericColorSpace = CGColorSpaceCreateDeviceRGB();
305 }
306 if (!m_postRoutineRegistered) {
307 m_postRoutineRegistered = true;
308 qAddPostRoutine(QCoreGraphicsPaintEngine::cleanUpMacColorSpaces);
309 }
310 }
311 return m_genericColorSpace;
312#else
313 // Just return the main display colorspace for the moment.
314 return macDisplayColorSpace();
315#endif
316}
317
318/*
319 Ideally, we should pass the widget in here, and use CGGetDisplaysWithRect() etc.
320 to support multiple displays correctly.
321*/
322CGColorSpaceRef QCoreGraphicsPaintEngine::macDisplayColorSpace(const QWidget *widget)
323{
324 CGColorSpaceRef colorSpace;
325
326 CGDirectDisplayID displayID;
327 CMProfileRef displayProfile = 0;
328 if (widget == 0) {
329 displayID = CGMainDisplayID();
330 } else {
331 const QRect &qrect = widget->window()->geometry();
332 CGRect rect = CGRectMake(qrect.x(), qrect.y(), qrect.width(), qrect.height());
333 CGDisplayCount throwAway;
334 CGDisplayErr dErr = CGGetDisplaysWithRect(rect, 1, &displayID, &throwAway);
335 if (dErr != kCGErrorSuccess)
336 return macDisplayColorSpace(0); // fall back on main display
337 }
338 if ((colorSpace = m_displayColorSpaceHash.value(displayID)))
339 return colorSpace;
340
341 CMError err = CMGetProfileByAVID((CMDisplayIDType)displayID, &displayProfile);
342 if (err == noErr) {
343 colorSpace = CGColorSpaceCreateWithPlatformColorSpace(displayProfile);
344 } else if (widget) {
345 return macDisplayColorSpace(0); // fall back on main display
346 }
347
348 if (colorSpace == 0)
349 colorSpace = CGColorSpaceCreateDeviceRGB();
350
351 m_displayColorSpaceHash.insert(displayID, colorSpace);
352 CMCloseProfile(displayProfile);
353 if (!m_postRoutineRegistered) {
354 m_postRoutineRegistered = true;
355 qAddPostRoutine(QCoreGraphicsPaintEngine::cleanUpMacColorSpaces);
356 }
357 return colorSpace;
358}
359
360void QCoreGraphicsPaintEngine::cleanUpMacColorSpaces()
361{
362 if (m_genericColorSpace) {
363 CFRelease(m_genericColorSpace);
364 m_genericColorSpace = 0;
365 }
366 QHash<CGDirectDisplayID, CGColorSpaceRef>::const_iterator it = m_displayColorSpaceHash.constBegin();
367 while (it != m_displayColorSpaceHash.constEnd()) {
368 if (it.value())
369 CFRelease(it.value());
370 ++it;
371 }
372 m_displayColorSpaceHash.clear();
373}
374
375void qt_mac_clip_cg(CGContextRef hd, const QRegion &rgn, CGAffineTransform *orig_xform)
376{
377 CGAffineTransform old_xform = CGAffineTransformIdentity;
378 if(orig_xform) { //setup xforms
379 old_xform = CGContextGetCTM(hd);
380 CGContextConcatCTM(hd, CGAffineTransformInvert(old_xform));
381 CGContextConcatCTM(hd, *orig_xform);
382 }
383
384 //do the clipping
385 CGContextBeginPath(hd);
386 if(rgn.isEmpty()) {
387 CGContextAddRect(hd, CGRectMake(0, 0, 0, 0));
388 } else {
389#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
390 if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_5) {
391 QCFType<HIMutableShapeRef> shape = rgn.toHIMutableShape();
392 Q_ASSERT(!HIShapeIsEmpty(shape));
393 HIShapeReplacePathInCGContext(shape, hd);
394 } else
395#endif
396 {
397 QVector<QRect> rects = rgn.rects();
398 const int count = rects.size();
399 for(int i = 0; i < count; i++) {
400 const QRect &r = rects[i];
401 CGRect mac_r = CGRectMake(r.x(), r.y(), r.width(), r.height());
402 CGContextAddRect(hd, mac_r);
403 }
404 }
405
406 }
407 CGContextClip(hd);
408
409 if(orig_xform) {//reset xforms
410 CGContextConcatCTM(hd, CGAffineTransformInvert(CGContextGetCTM(hd)));
411 CGContextConcatCTM(hd, old_xform);
412 }
413}
414
415
416//pattern handling (tiling)
417#if 1
418# define QMACPATTERN_MASK_MULTIPLIER 32
419#else
420# define QMACPATTERN_MASK_MULTIPLIER 1
421#endif
422class QMacPattern
423{
424public:
425 QMacPattern() : as_mask(false), pdev(0), image(0) { data.bytes = 0; }
426 ~QMacPattern() { CGImageRelease(image); }
427 int width() {
428 if(image)
429 return CGImageGetWidth(image);
430 if(data.bytes)
431 return 8*QMACPATTERN_MASK_MULTIPLIER;
432 return data.pixmap.width();
433 }
434 int height() {
435 if(image)
436 return CGImageGetHeight(image);
437 if(data.bytes)
438 return 8*QMACPATTERN_MASK_MULTIPLIER;
439 return data.pixmap.height();
440 }
441
442 //input
443 QColor foreground;
444 bool as_mask;
445 struct {
446 QPixmap pixmap;
447 const uchar *bytes;
448 } data;
449 QPaintDevice *pdev;
450 //output
451 CGImageRef image;
452};
453static void qt_mac_draw_pattern(void *info, CGContextRef c)
454{
455 QMacPattern *pat = (QMacPattern*)info;
456 int w = 0, h = 0;
457 bool isBitmap = (pat->data.pixmap.depth() == 1);
458 if(!pat->image) { //lazy cache
459 if(pat->as_mask) {
460 Q_ASSERT(pat->data.bytes);
461 w = h = 8;
462#if (QMACPATTERN_MASK_MULTIPLIER == 1)
463 CGDataProviderRef provider = CGDataProviderCreateWithData(0, pat->data.bytes, w*h, 0);
464 pat->image = CGImageMaskCreate(w, h, 1, 1, 1, provider, 0, false);
465 CGDataProviderRelease(provider);
466#else
467 const int numBytes = (w*h)/sizeof(uchar);
468 uchar xor_bytes[numBytes];
469 for(int i = 0; i < numBytes; ++i)
470 xor_bytes[i] = pat->data.bytes[i] ^ 0xFF;
471 CGDataProviderRef provider = CGDataProviderCreateWithData(0, xor_bytes, w*h, 0);
472 CGImageRef swatch = CGImageMaskCreate(w, h, 1, 1, 1, provider, 0, false);
473 CGDataProviderRelease(provider);
474
475 const QColor c0(0, 0, 0, 0), c1(255, 255, 255, 255);
476 QPixmap pm(w*QMACPATTERN_MASK_MULTIPLIER, h*QMACPATTERN_MASK_MULTIPLIER);
477 pm.fill(c0);
478 CGContextRef pm_ctx = qt_mac_cg_context(&pm);
479 CGContextSetFillColorWithColor(c, cgColorForQColor(c1, pat->pdev));
480 CGRect rect = CGRectMake(0, 0, w, h);
481 for(int x = 0; x < QMACPATTERN_MASK_MULTIPLIER; ++x) {
482 rect.origin.x = x * w;
483 for(int y = 0; y < QMACPATTERN_MASK_MULTIPLIER; ++y) {
484 rect.origin.y = y * h;
485 qt_mac_drawCGImage(pm_ctx, &rect, swatch);
486 }
487 }
488 pat->image = qt_mac_create_imagemask(pm, pm.rect());
489 CGImageRelease(swatch);
490 CGContextRelease(pm_ctx);
491 w *= QMACPATTERN_MASK_MULTIPLIER;
492 h *= QMACPATTERN_MASK_MULTIPLIER;
493#endif
494 } else {
495 w = pat->data.pixmap.width();
496 h = pat->data.pixmap.height();
497 if (isBitmap)
498 pat->image = qt_mac_create_imagemask(pat->data.pixmap, pat->data.pixmap.rect());
499 else
500 pat->image = (CGImageRef)pat->data.pixmap.macCGHandle();
501 }
502 } else {
503 w = CGImageGetWidth(pat->image);
504 h = CGImageGetHeight(pat->image);
505 }
506
507 //draw
508 bool needRestore = false;
509 if (CGImageIsMask(pat->image)) {
510 CGContextSaveGState(c);
511 CGContextSetFillColorWithColor(c, cgColorForQColor(pat->foreground, pat->pdev));
512 }
513 CGRect rect = CGRectMake(0, 0, w, h);
514 qt_mac_drawCGImage(c, &rect, pat->image);
515 if(needRestore)
516 CGContextRestoreGState(c);
517}
518static void qt_mac_dispose_pattern(void *info)
519{
520 QMacPattern *pat = (QMacPattern*)info;
521 delete pat;
522}
523
524/*****************************************************************************
525 QCoreGraphicsPaintEngine member functions
526 *****************************************************************************/
527
528inline static QPaintEngine::PaintEngineFeatures qt_mac_cg_features()
529{
530 return QPaintEngine::PaintEngineFeatures(QPaintEngine::AllFeatures & ~QPaintEngine::PaintOutsidePaintEvent
531 & ~QPaintEngine::PerspectiveTransform
532 & ~QPaintEngine::ConicalGradientFill
533 & ~QPaintEngine::LinearGradientFill
534 & ~QPaintEngine::RadialGradientFill
535 & ~QPaintEngine::BrushStroke);
536}
537
538QCoreGraphicsPaintEngine::QCoreGraphicsPaintEngine()
539: QPaintEngine(*(new QCoreGraphicsPaintEnginePrivate), qt_mac_cg_features())
540{
541}
542
543QCoreGraphicsPaintEngine::QCoreGraphicsPaintEngine(QPaintEnginePrivate &dptr)
544: QPaintEngine(dptr, qt_mac_cg_features())
545{
546}
547
548QCoreGraphicsPaintEngine::~QCoreGraphicsPaintEngine()
549{
550}
551
552bool
553QCoreGraphicsPaintEngine::begin(QPaintDevice *pdev)
554{
555 Q_D(QCoreGraphicsPaintEngine);
556 if(isActive()) { // already active painting
557 qWarning("QCoreGraphicsPaintEngine::begin: Painter already active");
558 return false;
559 }
560
561 //initialization
562 d->pdev = pdev;
563 d->complexXForm = false;
564 d->cosmeticPen = QCoreGraphicsPaintEnginePrivate::CosmeticSetPenWidth;
565 d->cosmeticPenSize = 1;
566 d->current.clipEnabled = false;
567 d->pixelSize = QPoint(1,1);
568 d->hd = qt_mac_cg_context(pdev);
569 if(d->hd) {
570 d->saveGraphicsState();
571 d->orig_xform = CGContextGetCTM(d->hd);
572 if (d->shading) {
573 CGShadingRelease(d->shading);
574 d->shading = 0;
575 }
576 d->setClip(0); //clear the context's clipping
577 }
578
579 setActive(true);
580
581 if(d->pdev->devType() == QInternal::Widget) { // device is a widget
582 QWidget *w = (QWidget*)d->pdev;
583 bool unclipped = w->testAttribute(Qt::WA_PaintUnclipped);
584
585 if((w->windowType() == Qt::Desktop)) {
586 if(!unclipped)
587 qWarning("QCoreGraphicsPaintEngine::begin: Does not support clipped desktop on Mac OS X");
588 // ## need to do [qt_mac_window_for(w) makeKeyAndOrderFront]; (need to rename the file)
589 } else if(unclipped) {
590 qWarning("QCoreGraphicsPaintEngine::begin: Does not support unclipped painting");
591 }
592 } else if(d->pdev->devType() == QInternal::Pixmap) { // device is a pixmap
593 QPixmap *pm = (QPixmap*)d->pdev;
594 if(pm->isNull()) {
595 qWarning("QCoreGraphicsPaintEngine::begin: Cannot paint null pixmap");
596 end();
597 return false;
598 }
599 }
600
601 setDirty(QPaintEngine::DirtyPen);
602 setDirty(QPaintEngine::DirtyBrush);
603 setDirty(QPaintEngine::DirtyBackground);
604 setDirty(QPaintEngine::DirtyHints);
605 return true;
606}
607
608bool
609QCoreGraphicsPaintEngine::end()
610{
611 Q_D(QCoreGraphicsPaintEngine);
612 setActive(false);
613 if(d->pdev->devType() == QInternal::Widget && static_cast<QWidget*>(d->pdev)->windowType() == Qt::Desktop) {
614#ifndef QT_MAC_USE_COCOA
615 HideWindow(qt_mac_window_for(static_cast<QWidget*>(d->pdev)));
616#else
617// // ### need to do [qt_mac_window_for(static_cast<QWidget *>(d->pdev)) orderOut]; (need to rename)
618#endif
619
620 }
621 if(d->shading) {
622 CGShadingRelease(d->shading);
623 d->shading = 0;
624 }
625 d->pdev = 0;
626 if(d->hd) {
627 d->restoreGraphicsState();
628 CGContextSynchronize(d->hd);
629 CGContextRelease(d->hd);
630 d->hd = 0;
631 }
632 return true;
633}
634
635void
636QCoreGraphicsPaintEngine::updateState(const QPaintEngineState &state)
637{
638 Q_D(QCoreGraphicsPaintEngine);
639 QPaintEngine::DirtyFlags flags = state.state();
640
641 if (flags & DirtyTransform)
642 updateMatrix(state.transform());
643
644 if (flags & DirtyClipEnabled) {
645 if (state.isClipEnabled())
646 updateClipPath(painter()->clipPath(), Qt::ReplaceClip);
647 else
648 updateClipPath(QPainterPath(), Qt::NoClip);
649 }
650
651 if (flags & DirtyClipPath) {
652 updateClipPath(state.clipPath(), state.clipOperation());
653 } else if (flags & DirtyClipRegion) {
654 updateClipRegion(state.clipRegion(), state.clipOperation());
655 }
656
657 // If the clip has changed we need to update all other states
658 // too, since they are included in the system context on OSX,
659 // and changing the clip resets that context back to scratch.
660 if (flags & (DirtyClipPath | DirtyClipRegion | DirtyClipEnabled))
661 flags |= AllDirty;
662
663 if (flags & DirtyPen)
664 updatePen(state.pen());
665 if (flags & (DirtyBrush|DirtyBrushOrigin))
666 updateBrush(state.brush(), state.brushOrigin());
667 if (flags & DirtyFont)
668 updateFont(state.font());
669 if (flags & DirtyOpacity)
670 updateOpacity(state.opacity());
671 if (flags & DirtyHints)
672 updateRenderHints(state.renderHints());
673 if (flags & DirtyCompositionMode)
674 updateCompositionMode(state.compositionMode());
675
676 if (flags & (DirtyPen | DirtyTransform)) {
677 if (!d->current.pen.isCosmetic()) {
678 d->cosmeticPen = QCoreGraphicsPaintEnginePrivate::CosmeticNone;
679 } else if (d->current.transform.m11() < d->current.transform.m22()-1.0 ||
680 d->current.transform.m11() > d->current.transform.m22()+1.0) {
681 d->cosmeticPen = QCoreGraphicsPaintEnginePrivate::CosmeticTransformPath;
682 d->cosmeticPenSize = d->adjustPenWidth(d->current.pen.widthF());
683 if (!d->cosmeticPenSize)
684 d->cosmeticPenSize = 1.0;
685 } else {
686 d->cosmeticPen = QCoreGraphicsPaintEnginePrivate::CosmeticSetPenWidth;
687 static const float sqrt2 = sqrt(2);
688 qreal width = d->current.pen.widthF();
689 if (!width)
690 width = 1;
691 d->cosmeticPenSize = sqrt(pow(d->pixelSize.y(), 2) + pow(d->pixelSize.x(), 2)) / sqrt2 * width;
692 }
693 }
694}
695
696void
697QCoreGraphicsPaintEngine::updatePen(const QPen &pen)
698{
699 Q_D(QCoreGraphicsPaintEngine);
700 Q_ASSERT(isActive());
701 d->current.pen = pen;
702 d->setStrokePen(pen);
703}
704
705void
706QCoreGraphicsPaintEngine::updateBrush(const QBrush &brush, const QPointF &brushOrigin)
707{
708 Q_D(QCoreGraphicsPaintEngine);
709 Q_ASSERT(isActive());
710 d->current.brush = brush;
711
712#ifdef QT_MAC_USE_NATIVE_GRADIENTS
713 // Quartz supports only pad spread
714 if (const QGradient *gradient = brush.gradient()) {
715 if (drawGradientNatively(gradient)) {
716 gccaps |= QPaintEngine::LinearGradientFill | QPaintEngine::RadialGradientFill;
717 } else {
718 gccaps &= ~(QPaintEngine::LinearGradientFill | QPaintEngine::RadialGradientFill);
719 }
720 }
721#endif
722
723 if (d->shading) {
724 CGShadingRelease(d->shading);
725 d->shading = 0;
726 }
727 d->setFillBrush(brushOrigin);
728}
729
730void
731QCoreGraphicsPaintEngine::updateOpacity(qreal opacity)
732{
733 Q_D(QCoreGraphicsPaintEngine);
734 CGContextSetAlpha(d->hd, opacity);
735}
736
737void
738QCoreGraphicsPaintEngine::updateFont(const QFont &)
739{
740 Q_D(QCoreGraphicsPaintEngine);
741 Q_ASSERT(isActive());
742 updatePen(d->current.pen);
743}
744
745void
746QCoreGraphicsPaintEngine::updateMatrix(const QTransform &transform)
747{
748 Q_D(QCoreGraphicsPaintEngine);
749 Q_ASSERT(isActive());
750
751 if (qt_is_nan(transform.m11()) || qt_is_nan(transform.m12()) || qt_is_nan(transform.m13())
752 || qt_is_nan(transform.m21()) || qt_is_nan(transform.m22()) || qt_is_nan(transform.m23())
753 || qt_is_nan(transform.m31()) || qt_is_nan(transform.m32()) || qt_is_nan(transform.m33()))
754 return;
755
756 d->current.transform = transform;
757 d->setTransform(transform.isIdentity() ? 0 : &transform);
758 d->complexXForm = (transform.m11() != 1 || transform.m22() != 1
759 || transform.m12() != 0 || transform.m21() != 0);
760 d->pixelSize = d->devicePixelSize(d->hd);
761}
762
763void
764QCoreGraphicsPaintEngine::updateClipPath(const QPainterPath &p, Qt::ClipOperation op)
765{
766 Q_D(QCoreGraphicsPaintEngine);
767 Q_ASSERT(isActive());
768 if(op == Qt::NoClip) {
769 if(d->current.clipEnabled) {
770 d->current.clipEnabled = false;
771 d->current.clip = QRegion();
772 d->setClip(0);
773 }
774 } else {
775 if(!d->current.clipEnabled)
776 op = Qt::ReplaceClip;
777 d->current.clipEnabled = true;
778 QRegion clipRegion(p.toFillPolygon().toPolygon(), p.fillRule());
779 if(op == Qt::ReplaceClip) {
780 d->current.clip = clipRegion;
781 d->setClip(0);
782 if(p.isEmpty()) {
783 CGRect rect = CGRectMake(0, 0, 0, 0);
784 CGContextClipToRect(d->hd, rect);
785 } else {
786 CGMutablePathRef path = qt_mac_compose_path(p);
787 CGContextBeginPath(d->hd);
788 CGContextAddPath(d->hd, path);
789 if(p.fillRule() == Qt::WindingFill)
790 CGContextClip(d->hd);
791 else
792 CGContextEOClip(d->hd);
793 CGPathRelease(path);
794 }
795 } else if(op == Qt::IntersectClip) {
796 d->current.clip = d->current.clip.intersected(clipRegion);
797 d->setClip(&d->current.clip);
798 } else if(op == Qt::UniteClip) {
799 d->current.clip = d->current.clip.united(clipRegion);
800 d->setClip(&d->current.clip);
801 }
802 }
803}
804
805void
806QCoreGraphicsPaintEngine::updateClipRegion(const QRegion &clipRegion, Qt::ClipOperation op)
807{
808 Q_D(QCoreGraphicsPaintEngine);
809 Q_ASSERT(isActive());
810 if(op == Qt::NoClip) {
811 d->current.clipEnabled = false;
812 d->current.clip = QRegion();
813 d->setClip(0);
814 } else {
815 if(!d->current.clipEnabled)
816 op = Qt::ReplaceClip;
817 d->current.clipEnabled = true;
818 if(op == Qt::IntersectClip)
819 d->current.clip = d->current.clip.intersected(clipRegion);
820 else if(op == Qt::ReplaceClip)
821 d->current.clip = clipRegion;
822 else if(op == Qt::UniteClip)
823 d->current.clip = d->current.clip.united(clipRegion);
824 d->setClip(&d->current.clip);
825 }
826}
827
828void
829QCoreGraphicsPaintEngine::drawPath(const QPainterPath &p)
830{
831 Q_D(QCoreGraphicsPaintEngine);
832 Q_ASSERT(isActive());
833
834 if (state->compositionMode() == QPainter::CompositionMode_Destination)
835 return;
836
837 CGMutablePathRef path = qt_mac_compose_path(p);
838 uchar ops = QCoreGraphicsPaintEnginePrivate::CGStroke;
839 if(p.fillRule() == Qt::WindingFill)
840 ops |= QCoreGraphicsPaintEnginePrivate::CGFill;
841 else
842 ops |= QCoreGraphicsPaintEnginePrivate::CGEOFill;
843 CGContextBeginPath(d->hd);
844 d->drawPath(ops, path);
845 CGPathRelease(path);
846}
847
848void
849QCoreGraphicsPaintEngine::drawRects(const QRectF *rects, int rectCount)
850{
851 Q_D(QCoreGraphicsPaintEngine);
852 Q_ASSERT(isActive());
853
854 if (state->compositionMode() == QPainter::CompositionMode_Destination)
855 return;
856
857 for (int i=0; i<rectCount; ++i) {
858 QRectF r = rects[i];
859
860 CGMutablePathRef path = CGPathCreateMutable();
861 CGPathAddRect(path, 0, qt_mac_compose_rect(r));
862 d->drawPath(QCoreGraphicsPaintEnginePrivate::CGFill|QCoreGraphicsPaintEnginePrivate::CGStroke,
863 path);
864 CGPathRelease(path);
865 }
866}
867
868void
869QCoreGraphicsPaintEngine::drawPoints(const QPointF *points, int pointCount)
870{
871 Q_D(QCoreGraphicsPaintEngine);
872 Q_ASSERT(isActive());
873
874 if (state->compositionMode() == QPainter::CompositionMode_Destination)
875 return;
876
877 if (d->current.pen.capStyle() == Qt::FlatCap)
878 CGContextSetLineCap(d->hd, kCGLineCapSquare);
879
880 CGMutablePathRef path = CGPathCreateMutable();
881 for(int i=0; i < pointCount; i++) {
882 float x = points[i].x(), y = points[i].y();
883 CGPathMoveToPoint(path, 0, x, y);
884 CGPathAddLineToPoint(path, 0, x+0.001, y);
885 }
886
887 bool doRestore = false;
888 if(d->cosmeticPen == QCoreGraphicsPaintEnginePrivate::CosmeticNone && !(state->renderHints() & QPainter::Antialiasing)) {
889 //we don't want adjusted pens for point rendering
890 doRestore = true;
891 d->saveGraphicsState();
892 CGContextSetLineWidth(d->hd, d->current.pen.widthF());
893 }
894 d->drawPath(QCoreGraphicsPaintEnginePrivate::CGStroke, path);
895 if (doRestore)
896 d->restoreGraphicsState();
897 CGPathRelease(path);
898 if (d->current.pen.capStyle() == Qt::FlatCap)
899 CGContextSetLineCap(d->hd, kCGLineCapButt);
900}
901
902void
903QCoreGraphicsPaintEngine::drawEllipse(const QRectF &r)
904{
905 Q_D(QCoreGraphicsPaintEngine);
906 Q_ASSERT(isActive());
907
908 if (state->compositionMode() == QPainter::CompositionMode_Destination)
909 return;
910
911 CGMutablePathRef path = CGPathCreateMutable();
912 CGAffineTransform transform = CGAffineTransformMakeScale(r.width() / r.height(), 1);
913 CGPathAddArc(path, &transform,(r.x() + (r.width() / 2)) / (r.width() / r.height()),
914 r.y() + (r.height() / 2), r.height() / 2, 0, (2 * M_PI), false);
915 d->drawPath(QCoreGraphicsPaintEnginePrivate::CGFill | QCoreGraphicsPaintEnginePrivate::CGStroke,
916 path);
917 CGPathRelease(path);
918}
919
920void
921QCoreGraphicsPaintEngine::drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode)
922{
923 Q_D(QCoreGraphicsPaintEngine);
924 Q_ASSERT(isActive());
925
926 if (state->compositionMode() == QPainter::CompositionMode_Destination)
927 return;
928
929 CGMutablePathRef path = CGPathCreateMutable();
930 CGPathMoveToPoint(path, 0, points[0].x(), points[0].y());
931 for(int x = 1; x < pointCount; ++x)
932 CGPathAddLineToPoint(path, 0, points[x].x(), points[x].y());
933 if(mode != PolylineMode && points[0] != points[pointCount-1])
934 CGPathAddLineToPoint(path, 0, points[0].x(), points[0].y());
935 uint op = QCoreGraphicsPaintEnginePrivate::CGStroke;
936 if (mode != PolylineMode)
937 op |= mode == OddEvenMode ? QCoreGraphicsPaintEnginePrivate::CGEOFill
938 : QCoreGraphicsPaintEnginePrivate::CGFill;
939 d->drawPath(op, path);
940 CGPathRelease(path);
941}
942
943void
944QCoreGraphicsPaintEngine::drawLines(const QLineF *lines, int lineCount)
945{
946 Q_D(QCoreGraphicsPaintEngine);
947 Q_ASSERT(isActive());
948
949 if (state->compositionMode() == QPainter::CompositionMode_Destination)
950 return;
951
952 CGMutablePathRef path = CGPathCreateMutable();
953 for(int i = 0; i < lineCount; i++) {
954 const QPointF start = lines[i].p1(), end = lines[i].p2();
955 CGPathMoveToPoint(path, 0, start.x(), start.y());
956 CGPathAddLineToPoint(path, 0, end.x(), end.y());
957 }
958 d->drawPath(QCoreGraphicsPaintEnginePrivate::CGStroke, path);
959 CGPathRelease(path);
960}
961
962void QCoreGraphicsPaintEngine::drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr)
963{
964 Q_D(QCoreGraphicsPaintEngine);
965 Q_ASSERT(isActive());
966
967 if (state->compositionMode() == QPainter::CompositionMode_Destination)
968 return;
969
970 if(pm.isNull())
971 return;
972
973 bool differentSize = (QRectF(0, 0, pm.width(), pm.height()) != sr), doRestore = false;
974 CGRect rect = CGRectMake(qRound(r.x()), qRound(r.y()), qRound(r.width()), qRound(r.height()));
975 QCFType<CGImageRef> image;
976 bool isBitmap = (pm.depth() == 1);
977 if (isBitmap) {
978 doRestore = true;
979 d->saveGraphicsState();
980
981 const QColor &col = d->current.pen.color();
982 CGContextSetFillColorWithColor(d->hd, cgColorForQColor(col, d->pdev));
983 image = qt_mac_create_imagemask(pm, sr);
984 } else if (differentSize) {
985 QCFType<CGImageRef> img = pm.toMacCGImageRef();
986 image = CGImageCreateWithImageInRect(img, CGRectMake(qRound(sr.x()), qRound(sr.y()), qRound(sr.width()), qRound(sr.height())));
987 } else {
988 image = (CGImageRef)pm.macCGHandle();
989 }
990 qt_mac_drawCGImage(d->hd, &rect, image);
991 if (doRestore)
992 d->restoreGraphicsState();
993}
994
995static void drawImageReleaseData (void *info, const void *, size_t)
996{
997 delete static_cast<QImage *>(info);
998}
999
1000CGImageRef qt_mac_createCGImageFromQImage(const QImage &img, const QImage **imagePtr = 0)
1001{
1002 QImage *image;
1003 if (img.depth() != 32)
1004 image = new QImage(img.convertToFormat(QImage::Format_ARGB32_Premultiplied));
1005 else
1006 image = new QImage(img);
1007
1008 uint cgflags = kCGImageAlphaNone;
1009 switch (image->format()) {
1010 case QImage::Format_ARGB32_Premultiplied:
1011 cgflags = kCGImageAlphaPremultipliedFirst;
1012 break;
1013 case QImage::Format_ARGB32:
1014 cgflags = kCGImageAlphaFirst;
1015 break;
1016 case QImage::Format_RGB32:
1017 cgflags = kCGImageAlphaNoneSkipFirst;
1018 default:
1019 break;
1020 }
1021#if defined(kCGBitmapByteOrder32Host) //only needed because CGImage.h added symbols in the minor version
1022 cgflags |= kCGBitmapByteOrder32Host;
1023#endif
1024 QCFType<CGDataProviderRef> dataProvider = CGDataProviderCreateWithData(image,
1025 static_cast<const QImage *>(image)->bits(),
1026 image->byteCount(),
1027 drawImageReleaseData);
1028 if (imagePtr)
1029 *imagePtr = image;
1030 return CGImageCreate(image->width(), image->height(), 8, 32,
1031 image->bytesPerLine(),
1032 QCoreGraphicsPaintEngine::macGenericColorSpace(),
1033 cgflags, dataProvider, 0, false, kCGRenderingIntentDefault);
1034
1035}
1036
1037void QCoreGraphicsPaintEngine::drawImage(const QRectF &r, const QImage &img, const QRectF &sr,
1038 Qt::ImageConversionFlags flags)
1039{
1040 Q_D(QCoreGraphicsPaintEngine);
1041 Q_UNUSED(flags);
1042 Q_ASSERT(isActive());
1043
1044 if (img.isNull() || state->compositionMode() == QPainter::CompositionMode_Destination)
1045 return;
1046
1047 const QImage *image;
1048 QCFType<CGImageRef> cgimage = qt_mac_createCGImageFromQImage(img, &image);
1049 CGRect rect = CGRectMake(r.x(), r.y(), r.width(), r.height());
1050 if (QRectF(0, 0, img.width(), img.height()) != sr)
1051 cgimage = CGImageCreateWithImageInRect(cgimage, CGRectMake(sr.x(), sr.y(),
1052 sr.width(), sr.height()));
1053 qt_mac_drawCGImage(d->hd, &rect, cgimage);
1054}
1055
1056void QCoreGraphicsPaintEngine::initialize()
1057{
1058}
1059
1060void QCoreGraphicsPaintEngine::cleanup()
1061{
1062}
1063
1064CGContextRef
1065QCoreGraphicsPaintEngine::handle() const
1066{
1067 return d_func()->hd;
1068}
1069
1070void
1071QCoreGraphicsPaintEngine::drawTiledPixmap(const QRectF &r, const QPixmap &pixmap,
1072 const QPointF &p)
1073{
1074 Q_D(QCoreGraphicsPaintEngine);
1075 Q_ASSERT(isActive());
1076
1077 if (state->compositionMode() == QPainter::CompositionMode_Destination)
1078 return;
1079
1080 //save the old state
1081 d->saveGraphicsState();
1082
1083 //setup the pattern
1084 QMacPattern *qpattern = new QMacPattern;
1085 qpattern->data.pixmap = pixmap;
1086 qpattern->foreground = d->current.pen.color();
1087 qpattern->pdev = d->pdev;
1088 CGPatternCallbacks callbks;
1089 callbks.version = 0;
1090 callbks.drawPattern = qt_mac_draw_pattern;
1091 callbks.releaseInfo = qt_mac_dispose_pattern;
1092 const int width = qpattern->width(), height = qpattern->height();
1093 CGAffineTransform trans = CGContextGetCTM(d->hd);
1094 CGPatternRef pat = CGPatternCreate(qpattern, CGRectMake(0, 0, width, height),
1095 trans, width, height,
1096 kCGPatternTilingNoDistortion, true, &callbks);
1097 CGColorSpaceRef cs = CGColorSpaceCreatePattern(0);
1098 CGContextSetFillColorSpace(d->hd, cs);
1099 CGFloat component = 1.0; //just one
1100 CGContextSetFillPattern(d->hd, pat, &component);
1101 CGSize phase = CGSizeApplyAffineTransform(CGSizeMake(-(p.x()-r.x()), -(p.y()-r.y())), trans);
1102 CGContextSetPatternPhase(d->hd, phase);
1103
1104 //fill the rectangle
1105 CGRect mac_rect = CGRectMake(r.x(), r.y(), r.width(), r.height());
1106 CGContextFillRect(d->hd, mac_rect);
1107
1108 //restore the state
1109 d->restoreGraphicsState();
1110 //cleanup
1111 CGColorSpaceRelease(cs);
1112 CGPatternRelease(pat);
1113}
1114
1115void QCoreGraphicsPaintEngine::drawTextItem(const QPointF &pos, const QTextItem &item)
1116{
1117 Q_D(QCoreGraphicsPaintEngine);
1118 if (d->current.transform.type() == QTransform::TxProject
1119#ifndef QMAC_NATIVE_GRADIENTS
1120 || painter()->pen().brush().gradient() //Just let the base engine "emulate" the gradient
1121#endif
1122 ) {
1123 QPaintEngine::drawTextItem(pos, item);
1124 return;
1125 }
1126
1127 if (state->compositionMode() == QPainter::CompositionMode_Destination)
1128 return;
1129
1130 const QTextItemInt &ti = static_cast<const QTextItemInt &>(item);
1131
1132 QPen oldPen = painter()->pen();
1133 QBrush oldBrush = painter()->brush();
1134 QPointF oldBrushOrigin = painter()->brushOrigin();
1135 updatePen(Qt::NoPen);
1136 updateBrush(oldPen.brush(), QPointF(0, 0));
1137
1138 Q_ASSERT(type() == QPaintEngine::CoreGraphics);
1139
1140 QFontEngine *fe = ti.fontEngine;
1141
1142 const bool textAA = state->renderHints() & QPainter::TextAntialiasing && fe->fontDef.pointSize > qt_antialiasing_threshold && !(fe->fontDef.styleStrategy & QFont::NoAntialias);
1143 const bool lineAA = state->renderHints() & QPainter::Antialiasing;
1144 if(textAA != lineAA)
1145 CGContextSetShouldAntialias(d->hd, textAA);
1146
1147 if (ti.glyphs.numGlyphs) {
1148 switch (fe->type()) {
1149 case QFontEngine::Mac:
1150#ifdef QT_MAC_USE_COCOA
1151 static_cast<QCoreTextFontEngine *>(fe)->draw(d->hd, pos.x(), pos.y(), ti, paintDevice()->height());
1152#else
1153 static_cast<QFontEngineMac *>(fe)->draw(d->hd, pos.x(), pos.y(), ti, paintDevice()->height());
1154#endif
1155 break;
1156 case QFontEngine::Box:
1157 d->drawBoxTextItem(pos, ti);
1158 break;
1159 default:
1160 break;
1161 }
1162 }
1163
1164 if(textAA != lineAA)
1165 CGContextSetShouldAntialias(d->hd, !textAA);
1166
1167 updatePen(oldPen);
1168 updateBrush(oldBrush, oldBrushOrigin);
1169}
1170
1171QPainter::RenderHints
1172QCoreGraphicsPaintEngine::supportedRenderHints() const
1173{
1174 return QPainter::RenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform);
1175}
1176enum CGCompositeMode {
1177 kCGCompositeModeClear = 0,
1178 kCGCompositeModeCopy = 1,
1179 kCGCompositeModeSourceOver = 2,
1180 kCGCompositeModeSourceIn = 3,
1181 kCGCompositeModeSourceOut = 4,
1182 kCGCompositeModeSourceAtop = 5,
1183 kCGCompositeModeDestinationOver = 6,
1184 kCGCompositeModeDestinationIn = 7,
1185 kCGCompositeModeDestinationOut = 8,
1186 kCGCompositeModeDestinationAtop = 9,
1187 kCGCompositeModeXOR = 10,
1188 kCGCompositeModePlusDarker = 11, // (max (0, (1-d) + (1-s)))
1189 kCGCompositeModePlusLighter = 12, // (min (1, s + d))
1190 };
1191extern "C" {
1192 extern void CGContextSetCompositeOperation(CGContextRef, int);
1193} // private function, but is in all versions of OS X.
1194void
1195QCoreGraphicsPaintEngine::updateCompositionMode(QPainter::CompositionMode mode)
1196{
1197#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
1198 if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_5) {
1199 int cg_mode = kCGBlendModeNormal;
1200 switch(mode) {
1201 case QPainter::CompositionMode_Multiply:
1202 cg_mode = kCGBlendModeMultiply;
1203 break;
1204 case QPainter::CompositionMode_Screen:
1205 cg_mode = kCGBlendModeScreen;
1206 break;
1207 case QPainter::CompositionMode_Overlay:
1208 cg_mode = kCGBlendModeOverlay;
1209 break;
1210 case QPainter::CompositionMode_Darken:
1211 cg_mode = kCGBlendModeDarken;
1212 break;
1213 case QPainter::CompositionMode_Lighten:
1214 cg_mode = kCGBlendModeLighten;
1215 break;
1216 case QPainter::CompositionMode_ColorDodge:
1217 cg_mode = kCGBlendModeColorDodge;
1218 break;
1219 case QPainter::CompositionMode_ColorBurn:
1220 cg_mode = kCGBlendModeColorBurn;
1221 break;
1222 case QPainter::CompositionMode_HardLight:
1223 cg_mode = kCGBlendModeHardLight;
1224 break;
1225 case QPainter::CompositionMode_SoftLight:
1226 cg_mode = kCGBlendModeSoftLight;
1227 break;
1228 case QPainter::CompositionMode_Difference:
1229 cg_mode = kCGBlendModeDifference;
1230 break;
1231 case QPainter::CompositionMode_Exclusion:
1232 cg_mode = kCGBlendModeExclusion;
1233 break;
1234 case QPainter::CompositionMode_Plus:
1235 cg_mode = kCGBlendModePlusLighter;
1236 break;
1237 case QPainter::CompositionMode_SourceOver:
1238 cg_mode = kCGBlendModeNormal;
1239 break;
1240 case QPainter::CompositionMode_DestinationOver:
1241 cg_mode = kCGBlendModeDestinationOver;
1242 break;
1243 case QPainter::CompositionMode_Clear:
1244 cg_mode = kCGBlendModeClear;
1245 break;
1246 case QPainter::CompositionMode_Source:
1247 cg_mode = kCGBlendModeCopy;
1248 break;
1249 case QPainter::CompositionMode_Destination:
1250 cg_mode = -1;
1251 break;
1252 case QPainter::CompositionMode_SourceIn:
1253 cg_mode = kCGBlendModeSourceIn;
1254 break;
1255 case QPainter::CompositionMode_DestinationIn:
1256 cg_mode = kCGCompositeModeDestinationIn;
1257 break;
1258 case QPainter::CompositionMode_SourceOut:
1259 cg_mode = kCGBlendModeSourceOut;
1260 break;
1261 case QPainter::CompositionMode_DestinationOut:
1262 cg_mode = kCGBlendModeDestinationOver;
1263 break;
1264 case QPainter::CompositionMode_SourceAtop:
1265 cg_mode = kCGBlendModeSourceAtop;
1266 break;
1267 case QPainter::CompositionMode_DestinationAtop:
1268 cg_mode = kCGBlendModeDestinationAtop;
1269 break;
1270 case QPainter::CompositionMode_Xor:
1271 cg_mode = kCGBlendModeXOR;
1272 break;
1273 default:
1274 break;
1275 }
1276 if (cg_mode > -1) {
1277 CGContextSetBlendMode(d_func()->hd, CGBlendMode(cg_mode));
1278 }
1279 } else
1280#endif
1281 // The standard porter duff ops.
1282 if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_3
1283 && mode <= QPainter::CompositionMode_Xor) {
1284 int cg_mode = kCGCompositeModeCopy;
1285 switch (mode) {
1286 case QPainter::CompositionMode_SourceOver:
1287 cg_mode = kCGCompositeModeSourceOver;
1288 break;
1289 case QPainter::CompositionMode_DestinationOver:
1290 cg_mode = kCGCompositeModeDestinationOver;
1291 break;
1292 case QPainter::CompositionMode_Clear:
1293 cg_mode = kCGCompositeModeClear;
1294 break;
1295 default:
1296 qWarning("QCoreGraphicsPaintEngine: Unhandled composition mode %d", (int)mode);
1297 break;
1298 case QPainter::CompositionMode_Source:
1299 cg_mode = kCGCompositeModeCopy;
1300 break;
1301 case QPainter::CompositionMode_Destination:
1302 cg_mode = CGCompositeMode(-1);
1303 break;
1304 case QPainter::CompositionMode_SourceIn:
1305 cg_mode = kCGCompositeModeSourceIn;
1306 break;
1307 case QPainter::CompositionMode_DestinationIn:
1308 cg_mode = kCGCompositeModeDestinationIn;
1309 break;
1310 case QPainter::CompositionMode_SourceOut:
1311 cg_mode = kCGCompositeModeSourceOut;
1312 break;
1313 case QPainter::CompositionMode_DestinationOut:
1314 cg_mode = kCGCompositeModeDestinationOut;
1315 break;
1316 case QPainter::CompositionMode_SourceAtop:
1317 cg_mode = kCGCompositeModeSourceAtop;
1318 break;
1319 case QPainter::CompositionMode_DestinationAtop:
1320 cg_mode = kCGCompositeModeDestinationAtop;
1321 break;
1322 case QPainter::CompositionMode_Xor:
1323 cg_mode = kCGCompositeModeXOR;
1324 break;
1325 }
1326 if (cg_mode > -1)
1327 CGContextSetCompositeOperation(d_func()->hd, CGCompositeMode(cg_mode));
1328 } else {
1329#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4)
1330 bool needPrivateAPI = false;
1331 if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4) {
1332 int cg_mode = kCGBlendModeNormal;
1333 switch (mode) {
1334 case QPainter::CompositionMode_Multiply:
1335 cg_mode = kCGBlendModeMultiply;
1336 break;
1337 case QPainter::CompositionMode_Screen:
1338 cg_mode = kCGBlendModeScreen;
1339 break;
1340 case QPainter::CompositionMode_Overlay:
1341 cg_mode = kCGBlendModeOverlay;
1342 break;
1343 case QPainter::CompositionMode_Darken:
1344 cg_mode = kCGBlendModeDarken;
1345 break;
1346 case QPainter::CompositionMode_Lighten:
1347 cg_mode = kCGBlendModeLighten;
1348 break;
1349 case QPainter::CompositionMode_ColorDodge:
1350 cg_mode = kCGBlendModeColorDodge;
1351 break;
1352 case QPainter::CompositionMode_ColorBurn:
1353 cg_mode = kCGBlendModeColorBurn;
1354 break;
1355 case QPainter::CompositionMode_HardLight:
1356 cg_mode = kCGBlendModeHardLight;
1357 break;
1358 case QPainter::CompositionMode_SoftLight:
1359 cg_mode = kCGBlendModeSoftLight;
1360 break;
1361 case QPainter::CompositionMode_Difference:
1362 cg_mode = kCGBlendModeDifference;
1363 break;
1364 case QPainter::CompositionMode_Exclusion:
1365 cg_mode = kCGBlendModeExclusion;
1366 break;
1367 case QPainter::CompositionMode_Plus:
1368 needPrivateAPI = true;
1369 cg_mode = kCGCompositeModePlusLighter;
1370 break;
1371 default:
1372 break;
1373 }
1374 if (!needPrivateAPI)
1375 CGContextSetBlendMode(d_func()->hd, CGBlendMode(cg_mode));
1376 else
1377 CGContextSetCompositeOperation(d_func()->hd, CGCompositeMode(cg_mode));
1378 }
1379#endif
1380 }
1381}
1382
1383void
1384QCoreGraphicsPaintEngine::updateRenderHints(QPainter::RenderHints hints)
1385{
1386 Q_D(QCoreGraphicsPaintEngine);
1387 CGContextSetShouldAntialias(d->hd, hints & QPainter::Antialiasing);
1388 static const CGFloat ScaleFactor = qt_mac_get_scalefactor();
1389 if (ScaleFactor > 1.) {
1390 CGContextSetInterpolationQuality(d->hd, kCGInterpolationHigh);
1391 } else {
1392 CGContextSetInterpolationQuality(d->hd, (hints & QPainter::SmoothPixmapTransform) ?
1393 kCGInterpolationHigh : kCGInterpolationNone);
1394 }
1395 CGContextSetShouldSmoothFonts(d->hd, hints & QPainter::TextAntialiasing);
1396}
1397
1398/*
1399 Returns the size of one device pixel in user-space coordinates.
1400*/
1401QPointF QCoreGraphicsPaintEnginePrivate::devicePixelSize(CGContextRef)
1402{
1403 QPointF p1 = current.transform.inverted().map(QPointF(0, 0));
1404 QPointF p2 = current.transform.inverted().map(QPointF(1, 1));
1405 return QPointF(qAbs(p2.x() - p1.x()), qAbs(p2.y() - p1.y()));
1406}
1407
1408/*
1409 Adjusts the pen width so we get correct line widths in the
1410 non-transformed, aliased case.
1411*/
1412float QCoreGraphicsPaintEnginePrivate::adjustPenWidth(float penWidth)
1413{
1414 Q_Q(QCoreGraphicsPaintEngine);
1415 float ret = penWidth;
1416 if (!complexXForm && !(q->state->renderHints() & QPainter::Antialiasing)) {
1417 if (penWidth < 2)
1418 ret = 1;
1419 else if (penWidth < 3)
1420 ret = 1.5;
1421 else
1422 ret = penWidth -1;
1423 }
1424 return ret;
1425}
1426
1427void
1428QCoreGraphicsPaintEnginePrivate::setStrokePen(const QPen &pen)
1429{
1430 //pencap
1431 CGLineCap cglinecap = kCGLineCapButt;
1432 if(pen.capStyle() == Qt::SquareCap)
1433 cglinecap = kCGLineCapSquare;
1434 else if(pen.capStyle() == Qt::RoundCap)
1435 cglinecap = kCGLineCapRound;
1436 CGContextSetLineCap(hd, cglinecap);
1437 CGContextSetLineWidth(hd, adjustPenWidth(pen.widthF()));
1438
1439 //join
1440 CGLineJoin cglinejoin = kCGLineJoinMiter;
1441 if(pen.joinStyle() == Qt::BevelJoin)
1442 cglinejoin = kCGLineJoinBevel;
1443 else if(pen.joinStyle() == Qt::RoundJoin)
1444 cglinejoin = kCGLineJoinRound;
1445 CGContextSetLineJoin(hd, cglinejoin);
1446// CGContextSetMiterLimit(hd, pen.miterLimit());
1447
1448 //pen style
1449 QVector<CGFloat> linedashes;
1450 if(pen.style() == Qt::CustomDashLine) {
1451 QVector<qreal> customs = pen.dashPattern();
1452 for(int i = 0; i < customs.size(); ++i)
1453 linedashes.append(customs.at(i));
1454 } else if(pen.style() == Qt::DashLine) {
1455 linedashes.append(4);
1456 linedashes.append(2);
1457 } else if(pen.style() == Qt::DotLine) {
1458 linedashes.append(1);
1459 linedashes.append(2);
1460 } else if(pen.style() == Qt::DashDotLine) {
1461 linedashes.append(4);
1462 linedashes.append(2);
1463 linedashes.append(1);
1464 linedashes.append(2);
1465 } else if(pen.style() == Qt::DashDotDotLine) {
1466 linedashes.append(4);
1467 linedashes.append(2);
1468 linedashes.append(1);
1469 linedashes.append(2);
1470 linedashes.append(1);
1471 linedashes.append(2);
1472 }
1473 const CGFloat cglinewidth = pen.widthF() <= 0.0f ? 1.0f : float(pen.widthF());
1474 for(int i = 0; i < linedashes.size(); ++i) {
1475 linedashes[i] *= cglinewidth;
1476 if(cglinewidth < 3 && (cglinecap == kCGLineCapSquare || cglinecap == kCGLineCapRound)) {
1477 if((i%2))
1478 linedashes[i] += cglinewidth/2;
1479 else
1480 linedashes[i] -= cglinewidth/2;
1481 }
1482 }
1483 CGContextSetLineDash(hd, pen.dashOffset() * cglinewidth, linedashes.data(), linedashes.size());
1484
1485 // color
1486 CGContextSetStrokeColorWithColor(hd, cgColorForQColor(pen.color(), pdev));
1487}
1488
1489// Add our own patterns here to deal with the fact that the coordinate system
1490// is flipped vertically with Quartz2D.
1491static const uchar *qt_mac_patternForBrush(int brushStyle)
1492{
1493 Q_ASSERT(brushStyle > Qt::SolidPattern && brushStyle < Qt::LinearGradientPattern);
1494 static const uchar dense1_pat[] = { 0x00, 0x00, 0x44, 0x00, 0x00, 0x00, 0x44, 0x00 };
1495 static const uchar dense2_pat[] = { 0x00, 0x22, 0x00, 0x88, 0x00, 0x22, 0x00, 0x88 };
1496 static const uchar dense3_pat[] = { 0x11, 0xaa, 0x44, 0xaa, 0x11, 0xaa, 0x44, 0xaa };
1497 static const uchar dense4_pat[] = { 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55 };
1498 static const uchar dense5_pat[] = { 0xee, 0x55, 0xbb, 0x55, 0xee, 0x55, 0xbb, 0x55 };
1499 static const uchar dense6_pat[] = { 0xff, 0xdd, 0xff, 0x77, 0xff, 0xdd, 0xff, 0x77 };
1500 static const uchar dense7_pat[] = { 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff, 0xbb, 0xff };
1501 static const uchar hor_pat[] = { 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff };
1502 static const uchar ver_pat[] = { 0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef };
1503 static const uchar cross_pat[] = { 0xef, 0xef, 0xef, 0xef, 0x00, 0xef, 0xef, 0xef };
1504 static const uchar fdiag_pat[] = { 0x7f, 0xbf, 0xdf, 0xef, 0xf7, 0xfb, 0xfd, 0xfe };
1505 static const uchar bdiag_pat[] = { 0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f };
1506 static const uchar dcross_pat[] = { 0x7e, 0xbd, 0xdb, 0xe7, 0xe7, 0xdb, 0xbd, 0x7e };
1507 static const uchar *const pat_tbl[] = {
1508 dense1_pat, dense2_pat, dense3_pat, dense4_pat, dense5_pat,
1509 dense6_pat, dense7_pat,
1510 hor_pat, ver_pat, cross_pat, bdiag_pat, fdiag_pat, dcross_pat };
1511 return pat_tbl[brushStyle - Qt::Dense1Pattern];
1512}
1513
1514void QCoreGraphicsPaintEnginePrivate::setFillBrush(const QPointF &offset)
1515{
1516 // pattern
1517 Qt::BrushStyle bs = current.brush.style();
1518#ifdef QT_MAC_USE_NATIVE_GRADIENTS
1519 if (bs == Qt::LinearGradientPattern || bs == Qt::RadialGradientPattern) {
1520 const QGradient *grad = static_cast<const QGradient*>(current.brush.gradient());
1521 if (drawGradientNatively(grad)) {
1522 Q_ASSERT(grad->spread() == QGradient::PadSpread);
1523
1524 static const CGFloat domain[] = { 0.0f, +1.0f };
1525 static const CGFunctionCallbacks callbacks = { 0, qt_mac_color_gradient_function, 0 };
1526 CGFunctionRef fill_func = CGFunctionCreate(reinterpret_cast<void *>(&current.brush),
1527 1, domain, 4, 0, &callbacks);
1528
1529 CGColorSpaceRef colorspace = qt_mac_colorSpaceForDeviceType(pdev);
1530 if (bs == Qt::LinearGradientPattern) {
1531 const QLinearGradient *linearGrad = static_cast<const QLinearGradient *>(grad);
1532 const QPointF start(linearGrad->start());
1533 const QPointF stop(linearGrad->finalStop());
1534 shading = CGShadingCreateAxial(colorspace, CGPointMake(start.x(), start.y()),
1535 CGPointMake(stop.x(), stop.y()), fill_func, true, true);
1536 } else {
1537 Q_ASSERT(bs == Qt::RadialGradientPattern);
1538 const QRadialGradient *radialGrad = static_cast<const QRadialGradient *>(grad);
1539 QPointF center(radialGrad->center());
1540 QPointF focal(radialGrad->focalPoint());
1541 qreal radius = radialGrad->radius();
1542 shading = CGShadingCreateRadial(colorspace, CGPointMake(focal.x(), focal.y()),
1543 0.0, CGPointMake(center.x(), center.y()), radius, fill_func, false, true);
1544 }
1545
1546 CGFunctionRelease(fill_func);
1547 }
1548 } else
1549#endif
1550 if(bs != Qt::SolidPattern && bs != Qt::NoBrush
1551#ifndef QT_MAC_USE_NATIVE_GRADIENTS
1552 && (bs < Qt::LinearGradientPattern || bs > Qt::ConicalGradientPattern)
1553#endif
1554 )
1555 {
1556 QMacPattern *qpattern = new QMacPattern;
1557 qpattern->pdev = pdev;
1558 CGFloat components[4] = { 1.0, 1.0, 1.0, 1.0 };
1559 CGColorSpaceRef base_colorspace = 0;
1560 if(bs == Qt::TexturePattern) {
1561 qpattern->data.pixmap = current.brush.texture();
1562 if(qpattern->data.pixmap.isQBitmap()) {
1563 const QColor &col = current.brush.color();
1564 components[0] = qt_mac_convert_color_to_cg(col.red());
1565 components[1] = qt_mac_convert_color_to_cg(col.green());
1566 components[2] = qt_mac_convert_color_to_cg(col.blue());
1567 base_colorspace = QCoreGraphicsPaintEngine::macGenericColorSpace();
1568 }
1569 } else {
1570 qpattern->as_mask = true;
1571
1572 qpattern->data.bytes = qt_mac_patternForBrush(bs);
1573 const QColor &col = current.brush.color();
1574 components[0] = qt_mac_convert_color_to_cg(col.red());
1575 components[1] = qt_mac_convert_color_to_cg(col.green());
1576 components[2] = qt_mac_convert_color_to_cg(col.blue());
1577 base_colorspace = QCoreGraphicsPaintEngine::macGenericColorSpace();
1578 }
1579 int width = qpattern->width(), height = qpattern->height();
1580 qpattern->foreground = current.brush.color();
1581
1582 CGColorSpaceRef fill_colorspace = CGColorSpaceCreatePattern(base_colorspace);
1583 CGContextSetFillColorSpace(hd, fill_colorspace);
1584
1585 CGAffineTransform xform = CGContextGetCTM(hd);
1586 xform = CGAffineTransformConcat(qt_mac_convert_transform_to_cg(current.brush.transform()), xform);
1587 xform = CGAffineTransformTranslate(xform, offset.x(), offset.y());
1588
1589 CGPatternCallbacks callbks;
1590 callbks.version = 0;
1591 callbks.drawPattern = qt_mac_draw_pattern;
1592 callbks.releaseInfo = qt_mac_dispose_pattern;
1593 CGPatternRef fill_pattern = CGPatternCreate(qpattern, CGRectMake(0, 0, width, height),
1594 xform, width, height, kCGPatternTilingNoDistortion,
1595 !base_colorspace, &callbks);
1596 CGContextSetFillPattern(hd, fill_pattern, components);
1597
1598 CGPatternRelease(fill_pattern);
1599 CGColorSpaceRelease(fill_colorspace);
1600 } else if(bs != Qt::NoBrush) {
1601 CGContextSetFillColorWithColor(hd, cgColorForQColor(current.brush.color(), pdev));
1602 }
1603}
1604
1605void
1606QCoreGraphicsPaintEnginePrivate::setClip(const QRegion *rgn)
1607{
1608 Q_Q(QCoreGraphicsPaintEngine);
1609 if(hd) {
1610 resetClip();
1611 QRegion sysClip = q->systemClip();
1612 if(!sysClip.isEmpty())
1613 qt_mac_clip_cg(hd, sysClip, &orig_xform);
1614 if(rgn)
1615 qt_mac_clip_cg(hd, *rgn, 0);
1616 }
1617}
1618
1619struct qt_mac_cg_transform_path {
1620 CGMutablePathRef path;
1621 CGAffineTransform transform;
1622};
1623
1624void qt_mac_cg_transform_path_apply(void *info, const CGPathElement *element)
1625{
1626 Q_ASSERT(info && element);
1627 qt_mac_cg_transform_path *t = (qt_mac_cg_transform_path*)info;
1628 switch(element->type) {
1629 case kCGPathElementMoveToPoint:
1630 CGPathMoveToPoint(t->path, &t->transform, element->points[0].x, element->points[0].y);
1631 break;
1632 case kCGPathElementAddLineToPoint:
1633 CGPathAddLineToPoint(t->path, &t->transform, element->points[0].x, element->points[0].y);
1634 break;
1635 case kCGPathElementAddQuadCurveToPoint:
1636 CGPathAddQuadCurveToPoint(t->path, &t->transform, element->points[0].x, element->points[0].y,
1637 element->points[1].x, element->points[1].y);
1638 break;
1639 case kCGPathElementAddCurveToPoint:
1640 CGPathAddCurveToPoint(t->path, &t->transform, element->points[0].x, element->points[0].y,
1641 element->points[1].x, element->points[1].y,
1642 element->points[2].x, element->points[2].y);
1643 break;
1644 case kCGPathElementCloseSubpath:
1645 CGPathCloseSubpath(t->path);
1646 break;
1647 default:
1648 qDebug() << "Unhandled path transform type: " << element->type;
1649 }
1650}
1651
1652void QCoreGraphicsPaintEnginePrivate::drawPath(uchar ops, CGMutablePathRef path)
1653{
1654 Q_Q(QCoreGraphicsPaintEngine);
1655 Q_ASSERT((ops & (CGFill | CGEOFill)) != (CGFill | CGEOFill)); //can't really happen
1656 if((ops & (CGFill | CGEOFill))) {
1657 if (shading) {
1658 Q_ASSERT(path);
1659 CGContextBeginPath(hd);
1660 CGContextAddPath(hd, path);
1661 saveGraphicsState();
1662 if (ops & CGFill)
1663 CGContextClip(hd);
1664 else if (ops & CGEOFill)
1665 CGContextEOClip(hd);
1666 if (current.brush.gradient()->coordinateMode() == QGradient::ObjectBoundingMode) {
1667 CGRect boundingBox = CGPathGetBoundingBox(path);
1668 CGContextConcatCTM(hd,
1669 CGAffineTransformMake(boundingBox.size.width, 0,
1670 0, boundingBox.size.height,
1671 boundingBox.origin.x, boundingBox.origin.y));
1672 }
1673 CGContextDrawShading(hd, shading);
1674 restoreGraphicsState();
1675 ops &= ~CGFill;
1676 ops &= ~CGEOFill;
1677 } else if (current.brush.style() == Qt::NoBrush) {
1678 ops &= ~CGFill;
1679 ops &= ~CGEOFill;
1680 }
1681 }
1682 if((ops & CGStroke) && current.pen.style() == Qt::NoPen)
1683 ops &= ~CGStroke;
1684
1685 if(ops & (CGEOFill | CGFill)) {
1686 CGContextBeginPath(hd);
1687 CGContextAddPath(hd, path);
1688 if (ops & CGEOFill) {
1689 CGContextEOFillPath(hd);
1690 } else {
1691 CGContextFillPath(hd);
1692 }
1693 }
1694
1695 // Avoid saving and restoring the context if we can.
1696 const bool needContextSave = (cosmeticPen != QCoreGraphicsPaintEnginePrivate::CosmeticNone ||
1697 !(q->state->renderHints() & QPainter::Antialiasing));
1698 if(ops & CGStroke) {
1699 if (needContextSave)
1700 saveGraphicsState();
1701 CGContextBeginPath(hd);
1702
1703 // Translate a fraction of a pixel size in the y direction
1704 // to make sure that primitives painted at pixel borders
1705 // fills the right pixel. This is needed since the y xais
1706 // in the Quartz coordinate system is inverted compared to Qt.
1707 if (!(q->state->renderHints() & QPainter::Antialiasing)) {
1708 if (current.pen.style() == Qt::SolidLine || current.pen.width() >= 3)
1709 CGContextTranslateCTM(hd, double(pixelSize.x()) * 0.25, double(pixelSize.y()) * 0.25);
1710 else if (current.pen.style() == Qt::DotLine && QSysInfo::MacintoshVersion == QSysInfo::MV_10_3)
1711 ; // Do nothing.
1712 else
1713 CGContextTranslateCTM(hd, 0, double(pixelSize.y()) * 0.1);
1714 }
1715
1716 if (cosmeticPen != QCoreGraphicsPaintEnginePrivate::CosmeticNone) {
1717 // If antialiazing is enabled, use the cosmetic pen size directly.
1718 if (q->state->renderHints() & QPainter::Antialiasing)
1719 CGContextSetLineWidth(hd, cosmeticPenSize);
1720 else if (current.pen.widthF() <= 1)
1721 CGContextSetLineWidth(hd, cosmeticPenSize * 0.9f);
1722 else
1723 CGContextSetLineWidth(hd, cosmeticPenSize);
1724 }
1725 if(cosmeticPen == QCoreGraphicsPaintEnginePrivate::CosmeticTransformPath) {
1726 qt_mac_cg_transform_path t;
1727 t.transform = qt_mac_convert_transform_to_cg(current.transform);
1728 t.path = CGPathCreateMutable();
1729 CGPathApply(path, &t, qt_mac_cg_transform_path_apply); //transform the path
1730 setTransform(0); //unset the context transform
1731 CGContextSetLineWidth(hd, cosmeticPenSize);
1732 CGContextAddPath(hd, t.path);
1733 CGPathRelease(t.path);
1734 } else {
1735 CGContextAddPath(hd, path);
1736 }
1737
1738 CGContextStrokePath(hd);
1739 if (needContextSave)
1740 restoreGraphicsState();
1741 }
1742}
1743
1744QT_END_NAMESPACE
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