source: trunk/src/gui/painting/qpaintengineex.cpp@ 651

Last change on this file since 651 was 651, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.2 sources.
File size: 34.2 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation (qt-info@nokia.com)
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 qt-info@nokia.com.
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "qpaintengineex_p.h"
43#include "qpainter_p.h"
44#include "qstroker_p.h"
45#include "qbezier_p.h"
46#include <private/qpainterpath_p.h>
47
48#include <qvarlengtharray.h>
49#include <qdebug.h>
50
51
52QT_BEGIN_NAMESPACE
53
54/*******************************************************************************
55 *
56 * class QVectorPath
57 *
58 */
59QVectorPath::~QVectorPath()
60{
61 if (m_hints & ShouldUseCacheHint) {
62 CacheEntry *e = m_cache;
63 while (e) {
64 if (e->data)
65 e->cleanup(e->engine, e->data);
66 CacheEntry *n = e->next;
67 delete e;
68 e = n;
69 }
70 }
71}
72
73
74QRectF QVectorPath::controlPointRect() const
75{
76 if (m_hints & ControlPointRect)
77 return QRectF(QPointF(m_cp_rect.x1, m_cp_rect.y1), QPointF(m_cp_rect.x2, m_cp_rect.y2));
78
79 if (m_count == 0) {
80 m_cp_rect.x1 = m_cp_rect.x2 = m_cp_rect.y1 = m_cp_rect.y2 = 0;
81 m_hints |= ControlPointRect;
82 return QRectF(QPointF(m_cp_rect.x1, m_cp_rect.y1), QPointF(m_cp_rect.x2, m_cp_rect.y2));
83 }
84 Q_ASSERT(m_points && m_count > 0);
85
86 const qreal *pts = m_points;
87 m_cp_rect.x1 = m_cp_rect.x2 = *pts;
88 ++pts;
89 m_cp_rect.y1 = m_cp_rect.y2 = *pts;
90 ++pts;
91
92 const qreal *epts = m_points + (m_count << 1);
93 while (pts < epts) {
94 qreal x = *pts;
95 if (x < m_cp_rect.x1) m_cp_rect.x1 = x;
96 else if (x > m_cp_rect.x2) m_cp_rect.x2 = x;
97 ++pts;
98
99 qreal y = *pts;
100 if (y < m_cp_rect.y1) m_cp_rect.y1 = y;
101 else if (y > m_cp_rect.y2) m_cp_rect.y2 = y;
102 ++pts;
103 }
104
105 m_hints |= ControlPointRect;
106 return QRectF(QPointF(m_cp_rect.x1, m_cp_rect.y1), QPointF(m_cp_rect.x2, m_cp_rect.y2));
107}
108
109
110QVectorPath::CacheEntry *QVectorPath::addCacheData(QPaintEngineEx *engine, void *data,
111 qvectorpath_cache_cleanup cleanup) const{
112 Q_ASSERT(!lookupCacheData(engine));
113 if ((m_hints & IsCachedHint) == 0) {
114 m_cache = 0;
115 m_hints |= IsCachedHint;
116 }
117 CacheEntry *e = new CacheEntry;
118 e->engine = engine;
119 e->data = data;
120 e->cleanup = cleanup;
121 e->next = m_cache;
122 m_cache = e;
123 return m_cache;
124}
125
126
127const QVectorPath &qtVectorPathForPath(const QPainterPath &path)
128{
129 Q_ASSERT(path.d_func());
130 return path.d_func()->vectorPath();
131}
132
133#ifndef QT_NO_DEBUG_STREAM
134QDebug Q_GUI_EXPORT &operator<<(QDebug &s, const QVectorPath &path)
135{
136 QRectF rf = path.controlPointRect();
137 s << "QVectorPath(size:" << path.elementCount()
138 << " hints:" << hex << path.hints()
139 << rf << ')';
140 return s;
141}
142#endif
143
144/*******************************************************************************
145 *
146 * class QPaintEngineExPrivate:
147 *
148 */
149
150
151struct StrokeHandler {
152 QDataBuffer<qreal> pts;
153 QDataBuffer<QPainterPath::ElementType> types;
154};
155
156
157QPaintEngineExPrivate::QPaintEngineExPrivate()
158 : dasher(&stroker),
159 strokeHandler(0),
160 activeStroker(0),
161 strokerPen(Qt::NoPen)
162{
163}
164
165
166QPaintEngineExPrivate::~QPaintEngineExPrivate()
167{
168 delete strokeHandler;
169}
170
171
172void QPaintEngineExPrivate::replayClipOperations()
173{
174 Q_Q(QPaintEngineEx);
175
176 QPainter *p = q->painter();
177 if (!p || !p->d_ptr)
178 return;
179
180 QList<QPainterClipInfo> clipInfo = p->d_ptr->state->clipInfo;
181
182 QTransform transform = q->state()->matrix;
183
184 for (int i = 0; i < clipInfo.size(); ++i) {
185 const QPainterClipInfo &info = clipInfo.at(i);
186
187 if (info.matrix != q->state()->matrix) {
188 q->state()->matrix = info.matrix;
189 q->transformChanged();
190 }
191
192 switch (info.clipType) {
193 case QPainterClipInfo::RegionClip:
194 q->clip(info.region, info.operation);
195 break;
196 case QPainterClipInfo::PathClip:
197 q->clip(info.path, info.operation);
198 break;
199 case QPainterClipInfo::RectClip:
200 q->clip(info.rect, info.operation);
201 break;
202 case QPainterClipInfo::RectFClip: {
203 qreal right = info.rectf.x() + info.rectf.width();
204 qreal bottom = info.rectf.y() + info.rectf.height();
205 qreal pts[] = { info.rectf.x(), info.rectf.y(),
206 right, info.rectf.y(),
207 right, bottom,
208 info.rectf.x(), bottom };
209 QVectorPath vp(pts, 4, 0, QVectorPath::RectangleHint);
210 q->clip(vp, info.operation);
211 break;
212 }
213 }
214 }
215
216 if (transform != q->state()->matrix) {
217 q->state()->matrix = transform;
218 q->transformChanged();
219 }
220}
221
222
223bool QPaintEngineExPrivate::hasClipOperations() const
224{
225 Q_Q(const QPaintEngineEx);
226
227 QPainter *p = q->painter();
228 if (!p || !p->d_ptr)
229 return false;
230
231 QList<QPainterClipInfo> clipInfo = p->d_ptr->state->clipInfo;
232
233 return !clipInfo.isEmpty();
234}
235
236/*******************************************************************************
237 *
238 * class QPaintEngineEx:
239 *
240 */
241
242static QPainterPath::ElementType qpaintengineex_ellipse_types[] = {
243 QPainterPath::MoveToElement,
244 QPainterPath::CurveToElement,
245 QPainterPath::CurveToDataElement,
246 QPainterPath::CurveToDataElement,
247
248 QPainterPath::CurveToElement,
249 QPainterPath::CurveToDataElement,
250 QPainterPath::CurveToDataElement,
251
252 QPainterPath::CurveToElement,
253 QPainterPath::CurveToDataElement,
254 QPainterPath::CurveToDataElement,
255
256 QPainterPath::CurveToElement,
257 QPainterPath::CurveToDataElement,
258 QPainterPath::CurveToDataElement
259};
260
261static QPainterPath::ElementType qpaintengineex_line_types_16[] = {
262 QPainterPath::MoveToElement, QPainterPath::LineToElement,
263 QPainterPath::MoveToElement, QPainterPath::LineToElement,
264 QPainterPath::MoveToElement, QPainterPath::LineToElement,
265 QPainterPath::MoveToElement, QPainterPath::LineToElement,
266 QPainterPath::MoveToElement, QPainterPath::LineToElement,
267 QPainterPath::MoveToElement, QPainterPath::LineToElement,
268 QPainterPath::MoveToElement, QPainterPath::LineToElement,
269 QPainterPath::MoveToElement, QPainterPath::LineToElement,
270 QPainterPath::MoveToElement, QPainterPath::LineToElement,
271 QPainterPath::MoveToElement, QPainterPath::LineToElement,
272 QPainterPath::MoveToElement, QPainterPath::LineToElement,
273 QPainterPath::MoveToElement, QPainterPath::LineToElement,
274 QPainterPath::MoveToElement, QPainterPath::LineToElement,
275 QPainterPath::MoveToElement, QPainterPath::LineToElement,
276 QPainterPath::MoveToElement, QPainterPath::LineToElement,
277 QPainterPath::MoveToElement, QPainterPath::LineToElement
278};
279
280static QPainterPath::ElementType qpaintengineex_rect4_types_32[] = {
281 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 1
282 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 2
283 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 3
284 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 4
285 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 5
286 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 6
287 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 7
288 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 8
289 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 9
290 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 10
291 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 11
292 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 12
293 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 13
294 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 14
295 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 15
296 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 16
297 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 17
298 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 18
299 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 19
300 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 20
301 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 21
302 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 22
303 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 23
304 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 24
305 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 25
306 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 26
307 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 27
308 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 28
309 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 29
310 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 30
311 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 31
312 QPainterPath::MoveToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, QPainterPath::LineToElement, // 32
313};
314
315
316static QPainterPath::ElementType qpaintengineex_roundedrect_types[] = {
317 QPainterPath::MoveToElement,
318 QPainterPath::LineToElement,
319 QPainterPath::CurveToElement,
320 QPainterPath::CurveToDataElement,
321 QPainterPath::CurveToDataElement,
322 QPainterPath::LineToElement,
323 QPainterPath::CurveToElement,
324 QPainterPath::CurveToDataElement,
325 QPainterPath::CurveToDataElement,
326 QPainterPath::LineToElement,
327 QPainterPath::CurveToElement,
328 QPainterPath::CurveToDataElement,
329 QPainterPath::CurveToDataElement,
330 QPainterPath::LineToElement,
331 QPainterPath::CurveToElement,
332 QPainterPath::CurveToDataElement,
333 QPainterPath::CurveToDataElement
334};
335
336
337
338static void qpaintengineex_moveTo(qreal x, qreal y, void *data) {
339 ((StrokeHandler *) data)->pts.add(x);
340 ((StrokeHandler *) data)->pts.add(y);
341 ((StrokeHandler *) data)->types.add(QPainterPath::MoveToElement);
342}
343
344static void qpaintengineex_lineTo(qreal x, qreal y, void *data) {
345 ((StrokeHandler *) data)->pts.add(x);
346 ((StrokeHandler *) data)->pts.add(y);
347 ((StrokeHandler *) data)->types.add(QPainterPath::LineToElement);
348}
349
350static void qpaintengineex_cubicTo(qreal c1x, qreal c1y, qreal c2x, qreal c2y, qreal ex, qreal ey, void *data) {
351 ((StrokeHandler *) data)->pts.add(c1x);
352 ((StrokeHandler *) data)->pts.add(c1y);
353 ((StrokeHandler *) data)->types.add(QPainterPath::CurveToElement);
354
355 ((StrokeHandler *) data)->pts.add(c2x);
356 ((StrokeHandler *) data)->pts.add(c2y);
357 ((StrokeHandler *) data)->types.add(QPainterPath::CurveToDataElement);
358
359 ((StrokeHandler *) data)->pts.add(ex);
360 ((StrokeHandler *) data)->pts.add(ey);
361 ((StrokeHandler *) data)->types.add(QPainterPath::CurveToDataElement);
362}
363
364QPaintEngineEx::QPaintEngineEx()
365 : QPaintEngine(*new QPaintEngineExPrivate, AllFeatures)
366{
367 extended = true;
368}
369
370QPaintEngineEx::QPaintEngineEx(QPaintEngineExPrivate &data)
371 : QPaintEngine(data, AllFeatures)
372{
373 extended = true;
374}
375
376QPainterState *QPaintEngineEx::createState(QPainterState *orig) const
377{
378 if (!orig)
379 return new QPainterState;
380 return new QPainterState(orig);
381}
382
383extern bool qt_scaleForTransform(const QTransform &transform, qreal *scale); // qtransform.cpp
384
385void QPaintEngineEx::stroke(const QVectorPath &path, const QPen &pen)
386{
387#ifdef QT_DEBUG_DRAW
388 qDebug() << "QPaintEngineEx::stroke()" << pen;
389#endif
390
391 Q_D(QPaintEngineEx);
392
393 if (path.isEmpty())
394 return;
395
396 if (!d->strokeHandler) {
397 d->strokeHandler = new StrokeHandler;
398 d->stroker.setMoveToHook(qpaintengineex_moveTo);
399 d->stroker.setLineToHook(qpaintengineex_lineTo);
400 d->stroker.setCubicToHook(qpaintengineex_cubicTo);
401 }
402
403 if (!qpen_fast_equals(pen, d->strokerPen)) {
404 d->strokerPen = pen;
405 d->stroker.setJoinStyle(pen.joinStyle());
406 d->stroker.setCapStyle(pen.capStyle());
407 d->stroker.setMiterLimit(pen.miterLimit());
408 qreal penWidth = pen.widthF();
409 if (penWidth == 0)
410 d->stroker.setStrokeWidth(1);
411 else
412 d->stroker.setStrokeWidth(penWidth);
413
414 Qt::PenStyle style = pen.style();
415 if (style == Qt::SolidLine) {
416 d->activeStroker = &d->stroker;
417 } else if (style == Qt::NoPen) {
418 d->activeStroker = 0;
419 } else {
420 d->dasher.setDashPattern(pen.dashPattern());
421 d->dasher.setDashOffset(pen.dashOffset());
422 d->activeStroker = &d->dasher;
423 }
424 }
425
426 if (!d->activeStroker) {
427 return;
428 }
429
430 if (pen.style() > Qt::SolidLine) {
431 if (pen.isCosmetic()) {
432 d->activeStroker->setClipRect(d->exDeviceRect);
433 } else {
434 QRectF clipRect = state()->matrix.inverted().mapRect(QRectF(d->exDeviceRect));
435 d->activeStroker->setClipRect(clipRect);
436 }
437 }
438
439 const QPainterPath::ElementType *types = path.elements();
440 const qreal *points = path.points();
441 int pointCount = path.elementCount();
442
443 const qreal *lastPoint = points + (pointCount<<1);
444
445 d->strokeHandler->types.reset();
446 d->strokeHandler->pts.reset();
447
448 // Some engines might decide to optimize for the non-shape hint later on...
449 uint flags = QVectorPath::WindingFill;
450
451 if (path.elementCount() > 2)
452 flags |= QVectorPath::NonConvexShapeMask;
453
454 if (d->stroker.capStyle() == Qt::RoundCap || d->stroker.joinStyle() == Qt::RoundJoin)
455 flags |= QVectorPath::CurvedShapeMask;
456
457 // ### Perspective Xforms are currently not supported...
458 if (!pen.isCosmetic()) {
459 // We include cosmetic pens in this case to avoid having to
460 // change the current transform. Normal transformed,
461 // non-cosmetic pens will be transformed as part of fill
462 // later, so they are also covered here..
463 d->activeStroker->begin(d->strokeHandler);
464 if (types) {
465 while (points < lastPoint) {
466 switch (*types) {
467 case QPainterPath::MoveToElement:
468 d->activeStroker->moveTo(points[0], points[1]);
469 points += 2;
470 ++types;
471 break;
472 case QPainterPath::LineToElement:
473 d->activeStroker->lineTo(points[0], points[1]);
474 points += 2;
475 ++types;
476 break;
477 case QPainterPath::CurveToElement:
478 d->activeStroker->cubicTo(points[0], points[1],
479 points[2], points[3],
480 points[4], points[5]);
481 points += 6;
482 types += 3;
483 flags |= QVectorPath::CurvedShapeMask;
484 break;
485 default:
486 break;
487 }
488 }
489 if (path.hasImplicitClose())
490 d->activeStroker->lineTo(path.points()[0], path.points()[1]);
491
492 } else {
493 d->activeStroker->moveTo(points[0], points[1]);
494 points += 2;
495 ++types;
496 while (points < lastPoint) {
497 d->activeStroker->lineTo(points[0], points[1]);
498 points += 2;
499 ++types;
500 }
501 if (path.hasImplicitClose())
502 d->activeStroker->lineTo(path.points()[0], path.points()[1]);
503 }
504 d->activeStroker->end();
505
506 if (!d->strokeHandler->types.size()) // an empty path...
507 return;
508
509 QVectorPath strokePath(d->strokeHandler->pts.data(),
510 d->strokeHandler->types.size(),
511 d->strokeHandler->types.data(),
512 flags);
513 fill(strokePath, pen.brush());
514 } else {
515 // For cosmetic pens we need a bit of trickery... We to process xform the input points
516 if (state()->matrix.type() >= QTransform::TxProject) {
517 QPainterPath painterPath = state()->matrix.map(path.convertToPainterPath());
518 d->activeStroker->strokePath(painterPath, d->strokeHandler, QTransform());
519 } else {
520 d->activeStroker->begin(d->strokeHandler);
521 if (types) {
522 while (points < lastPoint) {
523 switch (*types) {
524 case QPainterPath::MoveToElement: {
525 QPointF pt = (*(QPointF *) points) * state()->matrix;
526 d->activeStroker->moveTo(pt.x(), pt.y());
527 points += 2;
528 ++types;
529 break;
530 }
531 case QPainterPath::LineToElement: {
532 QPointF pt = (*(QPointF *) points) * state()->matrix;
533 d->activeStroker->lineTo(pt.x(), pt.y());
534 points += 2;
535 ++types;
536 break;
537 }
538 case QPainterPath::CurveToElement: {
539 QPointF c1 = ((QPointF *) points)[0] * state()->matrix;
540 QPointF c2 = ((QPointF *) points)[1] * state()->matrix;
541 QPointF e = ((QPointF *) points)[2] * state()->matrix;
542 d->activeStroker->cubicTo(c1.x(), c1.y(), c2.x(), c2.y(), e.x(), e.y());
543 points += 6;
544 types += 3;
545 flags |= QVectorPath::CurvedShapeMask;
546 break;
547 }
548 default:
549 break;
550 }
551 }
552 if (path.hasImplicitClose()) {
553 QPointF pt = * ((QPointF *) path.points()) * state()->matrix;
554 d->activeStroker->lineTo(pt.x(), pt.y());
555 }
556
557 } else {
558 QPointF p = ((QPointF *)points)[0] * state()->matrix;
559 d->activeStroker->moveTo(p.x(), p.y());
560 points += 2;
561 ++types;
562 while (points < lastPoint) {
563 QPointF p = ((QPointF *)points)[0] * state()->matrix;
564 d->activeStroker->lineTo(p.x(), p.y());
565 points += 2;
566 ++types;
567 }
568 if (path.hasImplicitClose())
569 d->activeStroker->lineTo(p.x(), p.y());
570 }
571 d->activeStroker->end();
572 }
573
574 QVectorPath strokePath(d->strokeHandler->pts.data(),
575 d->strokeHandler->types.size(),
576 d->strokeHandler->types.data(),
577 flags);
578
579 QTransform xform = state()->matrix;
580 state()->matrix = QTransform();
581 transformChanged();
582
583 QBrush brush = pen.brush();
584 if (qbrush_style(brush) != Qt::SolidPattern)
585 brush.setTransform(brush.transform() * xform);
586
587 fill(strokePath, brush);
588
589 state()->matrix = xform;
590 transformChanged();
591 }
592}
593
594void QPaintEngineEx::draw(const QVectorPath &path)
595{
596 const QBrush &brush = state()->brush;
597 if (qbrush_style(brush) != Qt::NoBrush)
598 fill(path, brush);
599
600 const QPen &pen = state()->pen;
601 if (qpen_style(pen) != Qt::NoPen && qbrush_style(qpen_brush(pen)) != Qt::NoBrush)
602 stroke(path, pen);
603}
604
605
606void QPaintEngineEx::clip(const QRect &r, Qt::ClipOperation op)
607{
608 qreal right = r.x() + r.width();
609 qreal bottom = r.y() + r.height();
610 qreal pts[] = { r.x(), r.y(),
611 right, r.y(),
612 right, bottom,
613 r.x(), bottom,
614 r.x(), r.y() };
615 QVectorPath vp(pts, 5, 0, QVectorPath::RectangleHint);
616 clip(vp, op);
617}
618
619void QPaintEngineEx::clip(const QRegion &region, Qt::ClipOperation op)
620{
621 if (region.rectCount() == 1)
622 clip(region.boundingRect(), op);
623
624 QVector<QRect> rects = region.rects();
625 if (rects.size() <= 32) {
626 qreal pts[2*32*4];
627 int pos = 0;
628 for (QVector<QRect>::const_iterator i = rects.constBegin(); i != rects.constEnd(); ++i) {
629 qreal x1 = i->x();
630 qreal y1 = i->y();
631 qreal x2 = i->x() + i->width();
632 qreal y2 = i->y() + i->height();
633
634 pts[pos++] = x1;
635 pts[pos++] = y1;
636
637 pts[pos++] = x2;
638 pts[pos++] = y1;
639
640 pts[pos++] = x2;
641 pts[pos++] = y2;
642
643 pts[pos++] = x1;
644 pts[pos++] = y2;
645 }
646 QVectorPath vp(pts, rects.size() * 4, qpaintengineex_rect4_types_32);
647 clip(vp, op);
648 } else {
649 QVarLengthArray<qreal> pts(rects.size() * 2 * 4);
650 QVarLengthArray<QPainterPath::ElementType> types(rects.size() * 4);
651 int ppos = 0;
652 int tpos = 0;
653
654 for (QVector<QRect>::const_iterator i = rects.constBegin(); i != rects.constEnd(); ++i) {
655 qreal x1 = i->x();
656 qreal y1 = i->y();
657 qreal x2 = i->x() + i->width();
658 qreal y2 = i->y() + i->height();
659
660 pts[ppos++] = x1;
661 pts[ppos++] = y1;
662
663 pts[ppos++] = x2;
664 pts[ppos++] = y1;
665
666 pts[ppos++] = x2;
667 pts[ppos++] = y2;
668
669 pts[ppos++] = x1;
670 pts[ppos++] = y2;
671
672 types[tpos++] = QPainterPath::MoveToElement;
673 types[tpos++] = QPainterPath::LineToElement;
674 types[tpos++] = QPainterPath::LineToElement;
675 types[tpos++] = QPainterPath::LineToElement;
676 }
677
678 QVectorPath vp(pts.data(), rects.size() * 4, types.data());
679 clip(vp, op);
680 }
681
682}
683
684void QPaintEngineEx::clip(const QPainterPath &path, Qt::ClipOperation op)
685{
686 if (path.isEmpty()) {
687 QVectorPath vp(0, 0);
688 clip(vp, op);
689 } else {
690 clip(qtVectorPathForPath(path), op);
691 }
692}
693
694void QPaintEngineEx::fillRect(const QRectF &r, const QBrush &brush)
695{
696 qreal pts[] = { r.x(), r.y(), r.x() + r.width(), r.y(),
697 r.x() + r.width(), r.y() + r.height(), r.x(), r.y() + r.height() };
698 QVectorPath vp(pts, 4, 0, QVectorPath::RectangleHint);
699 fill(vp, brush);
700}
701
702void QPaintEngineEx::fillRect(const QRectF &r, const QColor &color)
703{
704 fillRect(r, QBrush(color));
705}
706
707void QPaintEngineEx::drawRects(const QRect *rects, int rectCount)
708{
709 for (int i=0; i<rectCount; ++i) {
710 const QRect &r = rects[i];
711 // ### Is there a one off here?
712 qreal right = r.x() + r.width();
713 qreal bottom = r.y() + r.height();
714 qreal pts[] = { r.x(), r.y(),
715 right, r.y(),
716 right, bottom,
717 r.x(), bottom,
718 r.x(), r.y() };
719 QVectorPath vp(pts, 5, 0, QVectorPath::RectangleHint);
720 draw(vp);
721 }
722}
723
724void QPaintEngineEx::drawRects(const QRectF *rects, int rectCount)
725{
726 for (int i=0; i<rectCount; ++i) {
727 const QRectF &r = rects[i];
728 qreal right = r.x() + r.width();
729 qreal bottom = r.y() + r.height();
730 qreal pts[] = { r.x(), r.y(),
731 right, r.y(),
732 right, bottom,
733 r.x(), bottom,
734 r.x(), r.y() };
735 QVectorPath vp(pts, 5, 0, QVectorPath::RectangleHint);
736 draw(vp);
737 }
738}
739
740
741void QPaintEngineEx::drawRoundedRect(const QRectF &rect, qreal xRadius, qreal yRadius,
742 Qt::SizeMode mode)
743{
744 qreal x1 = rect.left();
745 qreal x2 = rect.right();
746 qreal y1 = rect.top();
747 qreal y2 = rect.bottom();
748
749 if (mode == Qt::RelativeSize) {
750 xRadius = xRadius * rect.width() / 200.;
751 yRadius = yRadius * rect.height() / 200.;
752 }
753
754 xRadius = qMin(xRadius, rect.width() / 2);
755 yRadius = qMin(yRadius, rect.height() / 2);
756
757 qreal pts[] = {
758 x1 + xRadius, y1, // MoveTo
759 x2 - xRadius, y1, // LineTo
760 x2 - (1 - KAPPA) * xRadius, y1, // CurveTo
761 x2, y1 + (1 - KAPPA) * yRadius,
762 x2, y1 + yRadius,
763 x2, y2 - yRadius, // LineTo
764 x2, y2 - (1 - KAPPA) * yRadius, // CurveTo
765 x2 - (1 - KAPPA) * xRadius, y2,
766 x2 - xRadius, y2,
767 x1 + xRadius, y2, // LineTo
768 x1 + (1 - KAPPA) * xRadius, y2, // CurveTo
769 x1, y2 - (1 - KAPPA) * yRadius,
770 x1, y2 - yRadius,
771 x1, y1 + yRadius, // LineTo
772 x1, y1 + KAPPA * yRadius, // CurveTo
773 x1 + (1 - KAPPA) * xRadius, y1,
774 x1 + xRadius, y1
775 };
776
777 QVectorPath path(pts, 17, qpaintengineex_roundedrect_types, QVectorPath::RoundedRectHint);
778 draw(path);
779}
780
781
782
783void QPaintEngineEx::drawLines(const QLine *lines, int lineCount)
784{
785 int elementCount = lineCount << 1;
786 while (elementCount > 0) {
787 int count = qMin(elementCount, 32);
788
789 qreal pts[64];
790 int count2 = count<<1;
791#ifdef Q_WS_MAC
792 for (int i=0; i<count2; i+=2) {
793 pts[i] = ((int *) lines)[i+1];
794 pts[i+1] = ((int *) lines)[i];
795 }
796#else
797 for (int i=0; i<count2; ++i)
798 pts[i] = ((int *) lines)[i];
799#endif
800
801 QVectorPath path(pts, count, qpaintengineex_line_types_16, QVectorPath::LinesHint);
802 stroke(path, state()->pen);
803
804 elementCount -= 32;
805 lines += 16;
806 }
807}
808
809void QPaintEngineEx::drawLines(const QLineF *lines, int lineCount)
810{
811 int elementCount = lineCount << 1;
812 while (elementCount > 0) {
813 int count = qMin(elementCount, 32);
814
815 QVectorPath path((qreal *) lines, count, qpaintengineex_line_types_16,
816 QVectorPath::LinesHint);
817 stroke(path, state()->pen);
818
819 elementCount -= 32;
820 lines += 16;
821 }
822}
823
824void QPaintEngineEx::drawEllipse(const QRectF &r)
825{
826 qreal pts[26]; // QPointF[13] without constructors...
827 union {
828 qreal *ptr;
829 QPointF *points;
830 } x;
831 x.ptr = pts;
832
833 int point_count = 0;
834 x.points[0] = qt_curves_for_arc(r, 0, -360, x.points + 1, &point_count);
835 QVectorPath vp((qreal *) pts, 13, qpaintengineex_ellipse_types, QVectorPath::EllipseHint);
836 draw(vp);
837}
838
839void QPaintEngineEx::drawEllipse(const QRect &r)
840{
841 drawEllipse(QRectF(r));
842}
843
844void QPaintEngineEx::drawPath(const QPainterPath &path)
845{
846 if (!path.isEmpty())
847 draw(qtVectorPathForPath(path));
848}
849
850
851void QPaintEngineEx::drawPoints(const QPointF *points, int pointCount)
852{
853 QPen pen = state()->pen;
854 if (pen.capStyle() == Qt::FlatCap)
855 pen.setCapStyle(Qt::SquareCap);
856
857 if (pen.brush().isOpaque()) {
858 while (pointCount > 0) {
859 int count = qMin(pointCount, 16);
860 qreal pts[64];
861 int oset = -1;
862 for (int i=0; i<count; ++i) {
863 pts[++oset] = points[i].x();
864 pts[++oset] = points[i].y();
865 pts[++oset] = points[i].x() + 1/63.;
866 pts[++oset] = points[i].y();
867 }
868 QVectorPath path(pts, count * 2, qpaintengineex_line_types_16, QVectorPath::LinesHint);
869 stroke(path, pen);
870 pointCount -= 16;
871 points += 16;
872 }
873 } else {
874 for (int i=0; i<pointCount; ++i) {
875 qreal pts[] = { points[i].x(), points[i].y(), points[i].x() + 1/63., points[i].y() };
876 QVectorPath path(pts, 2, 0);
877 stroke(path, pen);
878 }
879 }
880}
881
882void QPaintEngineEx::drawPoints(const QPoint *points, int pointCount)
883{
884 QPen pen = state()->pen;
885 if (pen.capStyle() == Qt::FlatCap)
886 pen.setCapStyle(Qt::SquareCap);
887
888 if (pen.brush().isOpaque()) {
889 while (pointCount > 0) {
890 int count = qMin(pointCount, 16);
891 qreal pts[64];
892 int oset = -1;
893 for (int i=0; i<count; ++i) {
894 pts[++oset] = points[i].x();
895 pts[++oset] = points[i].y();
896 pts[++oset] = points[i].x() + 1/63;
897 pts[++oset] = points[i].y();
898 }
899 QVectorPath path(pts, count * 2, qpaintengineex_line_types_16, QVectorPath::LinesHint);
900 stroke(path, pen);
901 pointCount -= 16;
902 points += 16;
903 }
904 } else {
905 for (int i=0; i<pointCount; ++i) {
906 qreal pts[] = { points[i].x(), points[i].y(), points[i].x() +1/63., points[i].y() };
907 QVectorPath path(pts, 2, 0);
908 stroke(path, pen);
909 }
910 }
911}
912
913
914void QPaintEngineEx::drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode)
915{
916 QVectorPath path((qreal *) points, pointCount, 0, QVectorPath::polygonFlags(mode));
917
918 if (mode == PolylineMode)
919 stroke(path, state()->pen);
920 else
921 draw(path);
922}
923
924void QPaintEngineEx::drawPolygon(const QPoint *points, int pointCount, PolygonDrawMode mode)
925{
926 int count = pointCount<<1;
927 QVarLengthArray<qreal> pts(count);
928
929#ifdef Q_WS_MAC
930 for (int i=0; i<count; i+=2) {
931 pts[i] = ((int *) points)[i+1];
932 pts[i+1] = ((int *) points)[i];
933 }
934#else
935 for (int i=0; i<count; ++i)
936 pts[i] = ((int *) points)[i];
937#endif
938
939 QVectorPath path(pts.data(), pointCount, 0, QVectorPath::polygonFlags(mode));
940
941 if (mode == PolylineMode)
942 stroke(path, state()->pen);
943 else
944 draw(path);
945
946}
947
948void QPaintEngineEx::drawPixmap(const QPointF &pos, const QPixmap &pm)
949{
950 drawPixmap(QRectF(pos, pm.size()), pm, pm.rect());
951}
952
953void QPaintEngineEx::drawImage(const QPointF &pos, const QImage &image)
954{
955 drawImage(QRectF(pos, image.size()), image, image.rect());
956}
957
958void QPaintEngineEx::drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &s)
959{
960 QBrush brush(state()->pen.color(), pixmap);
961 QTransform xform = QTransform::fromTranslate(r.x() - s.x(), r.y() - s.y());
962 brush.setTransform(xform);
963
964 qreal pts[] = { r.x(), r.y(),
965 r.x() + r.width(), r.y(),
966 r.x() + r.width(), r.y() + r.height(),
967 r.x(), r.y() + r.height() };
968
969 QVectorPath path(pts, 4, 0, QVectorPath::RectangleHint);
970 fill(path, brush);
971}
972
973void QPaintEngineEx::drawPixmaps(const QDrawPixmaps::Data *drawingData, int dataCount, const QPixmap &pixmap, QDrawPixmaps::DrawingHints /*hints*/)
974{
975 qreal oldOpacity = state()->opacity;
976 QTransform oldTransform = state()->matrix;
977
978 for (int i = 0; i < dataCount; ++i) {
979 QTransform transform = oldTransform;
980 transform.translate(drawingData[i].point.x(), drawingData[i].point.y());
981 transform.rotate(drawingData[i].rotation);
982 state()->opacity = oldOpacity * drawingData[i].opacity;
983 state()->matrix = transform;
984 opacityChanged();
985 transformChanged();
986
987 qreal w = drawingData[i].scaleX * drawingData[i].source.width();
988 qreal h = drawingData[i].scaleY * drawingData[i].source.height();
989 drawPixmap(QRectF(-0.5 * w, -0.5 * h, w, h), pixmap, drawingData[i].source);
990 }
991
992 state()->opacity = oldOpacity;
993 state()->matrix = oldTransform;
994 opacityChanged();
995 transformChanged();
996}
997
998void QPaintEngineEx::setState(QPainterState *s)
999{
1000 QPaintEngine::state = s;
1001}
1002
1003
1004void QPaintEngineEx::updateState(const QPaintEngineState &)
1005{
1006 // do nothing...
1007}
1008
1009QT_END_NAMESPACE
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