qpaintengine_pic.cpp

Absolute File Name:/home/qt/qt5_coco/qt5/qtbase/src/gui/image/qpaintengine_pic.cpp
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10class QPicturePaintEnginePrivate : public QPaintEnginePrivate-
11{-
12 inline QPicturePaintEngine* q_func() { return static_cast<QPicturePaintEngine *>(q_ptr); } inline const QPicturePaintEngine* q_func() const { return static_cast<const QPicturePaintEngine *>(q_ptr); } friend class QPicturePaintEngine;-
13public:-
14 QDataStream s;-
15 QPainter *pt;-
16 QPicturePrivate *pic_d;-
17};-
18-
19QPicturePaintEngine::QPicturePaintEngine()-
20 : QPaintEngine(*(new QPicturePaintEnginePrivate), AllFeatures)-
21{-
22 QPicturePaintEnginePrivate * const d = d_func();-
23 d->pt = 0;-
24}-
25-
26QPicturePaintEngine::QPicturePaintEngine(QPaintEnginePrivate &dptr)-
27 : QPaintEngine(dptr, AllFeatures)-
28{-
29 QPicturePaintEnginePrivate * const d = d_func();-
30 d->pt = 0;-
31}-
32-
33QPicturePaintEngine::~QPicturePaintEngine()-
34{-
35}-
36-
37bool QPicturePaintEngine::begin(QPaintDevice *pd)-
38{-
39 QPicturePaintEnginePrivate * const d = d_func();-
40-
41-
42-
43 ((!(pd)) ? qt_assert("pd",__FILE__,9096) : qt_noop());-
44 QPicture *pic = static_cast<QPicture *>(pd);-
45-
46 d->pdev = pd;-
47 d->pic_d = pic->d_func();-
48 ((!(d->pic_d)) ? qt_assert("d->pic_d",__FILE__,95101) : qt_noop());-
49-
50 d->s.setDevice(&d->pic_d->pictb);-
51 d->s.setVersion(d->pic_d->formatMajor);-
52-
53 d->pic_d->pictb.open(QIODevice::WriteOnly | QIODevice::Truncate);-
54 d->s.writeRawData(qt_mfhdr_tag, 4);-
55 d->s << (quint16) 0 << (quint16) d->pic_d->formatMajor << (quint16) d->pic_d->formatMinor;-
56 d->s << (quint8) QPicturePrivate::PdcBegin << (quint8) sizeof(qint32);-
57 d->pic_d->brect = QRect();-
58 if (d->pic_d->formatMajor >= 4
d->pic_d->formatMajor >= 4Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
59 QRect r = pic->boundingRect();-
60 d->s << (qint32) r.left() << (qint32) r.top() << (qint32) r.width()-
61 << (qint32) r.height();-
62 }
never executed: end of block
0
63 d->pic_d->trecs = 0;-
64 d->s << (quint32)d->pic_d->trecs;-
65 d->pic_d->formatOk = false;-
66 setActive(true);-
67 return
never executed: return true;
 true;
never executed: return true;
0
68}-
69-
70bool QPicturePaintEngine::end()-
71{-
72 QPicturePaintEnginePrivate * const d = d_func();-
73-
74-
75-
76 d->pic_d->trecs++;-
77 d->s << (quint8) QPicturePrivate::PdcEnd << (quint8) 0;-
78 int cs_start = sizeof(quint32);-
79 int data_start = cs_start + sizeof(quint16);-
80 int brect_start = data_start + 2*sizeof(qint16) + 2*sizeof(quint8);-
81 int pos = d->pic_d->pictb.pos();-
82 d->pic_d->pictb.seek(brect_start);-
83 if (d->pic_d->formatMajor >= 4
d->pic_d->formatMajor >= 4Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
84 QRect r = static_cast<QPicture *>(d->pdev)->boundingRect();-
85 d->s << (qint32) r.left() << (qint32) r.top() << (qint32) r.width()-
86 << (qint32) r.height();-
87 }
never executed: end of block
0
88 d->s << (quint32) d->pic_d->trecs;-
89 d->pic_d->pictb.seek(cs_start);-
90 QByteArray buf = d->pic_d->pictb.buffer();-
91 quint16 cs = (quint16) qChecksum(buf.constData() + data_start, pos - data_start);-
92 d->s << cs;-
93 d->pic_d->pictb.close();-
94 setActive(false);-
95 return
never executed: return true;
 true;
never executed: return true;
0
96}-
97-
98-
99-
100-
101-
102-
103-
104void QPicturePaintEngine::updatePen(const QPen &pen)-
105{-
106 QPicturePaintEnginePrivate * const d = d_func();-
107-
108-
109-
110-
111 int pos;-
112 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetPen; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
113 if (d->pic_d->in_memory_only) {-
114 int index = d->pic_d->pen_list.size();-
115 d->pic_d->pen_list.append(pen);-
116 d->s << index;-
117 } else {-
118 d->s << pen;-
119 }-
120 writeCmdLength(pos, QRect(), false);-
121}-
122-
123void QPicturePaintEngine::updateCompositionMode(QPainter::CompositionMode cmode)-
124{-
125 QPicturePaintEnginePrivate * const d = d_func();-
126-
127-
128-
129 int pos;-
130 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetCompositionMode; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
131 d->s << (qint32)cmode;-
132 writeCmdLength(pos, QRectF(), false);-
133}-
134-
135void QPicturePaintEngine::updateClipEnabled(bool enabled)-
136{-
137 QPicturePaintEnginePrivate * const d = d_func();-
138-
139-
140-
141 int pos;-
142 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetClipEnabled; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
143 d->s << enabled;-
144 writeCmdLength(pos, QRectF(), false);-
145}-
146-
147void QPicturePaintEngine::updateOpacity(qreal opacity)-
148{-
149 QPicturePaintEnginePrivate * const d = d_func();-
150-
151-
152-
153 int pos;-
154 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetOpacity; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
155 d->s << double(opacity);-
156 writeCmdLength(pos, QRectF(), false);-
157}-
158-
159void QPicturePaintEngine::updateBrush(const QBrush &brush)-
160{-
161 QPicturePaintEnginePrivate * const d = d_func();-
162-
163-
164-
165 int pos;-
166 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetBrush; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
167 if (d->pic_d->in_memory_only) {-
168 int index = d->pic_d->brush_list.size();-
169 d->pic_d->brush_list.append(brush);-
170 d->s << index;-
171 } else {-
172 d->s << brush;-
173 }-
174 writeCmdLength(pos, QRect(), false);-
175}-
176-
177void QPicturePaintEngine::updateBrushOrigin(const QPointF &p)-
178{-
179 QPicturePaintEnginePrivate * const d = d_func();-
180-
181-
182-
183 int pos;-
184 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetBrushOrigin; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
185 d->s << p;-
186 writeCmdLength(pos, QRect(), false);-
187}-
188-
189void QPicturePaintEngine::updateFont(const QFont &font)-
190{-
191 QPicturePaintEnginePrivate * const d = d_func();-
192-
193-
194-
195 int pos;-
196 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetFont; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
197 QFont fnt = font;-
198 d->s << fnt;-
199 writeCmdLength(pos, QRectF(), false);-
200}-
201-
202void QPicturePaintEngine::updateBackground(Qt::BGMode bgMode, const QBrush &bgBrush)-
203{-
204 QPicturePaintEnginePrivate * const d = d_func();-
205-
206-
207-
208 int pos;-
209 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetBkColor; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
210 d->s << bgBrush.color();-
211 writeCmdLength(pos, QRect(), false);-
212-
213 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetBkMode; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
214 d->s << (qint8) bgMode;-
215 writeCmdLength(pos, QRectF(), false);-
216}-
217-
218void QPicturePaintEngine::updateMatrix(const QTransform &matrix)-
219{-
220 QPicturePaintEnginePrivate * const d = d_func();-
221-
222-
223-
224 int pos;-
225 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetWMatrix; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
226 d->s << matrix << (qint8) false;-
227 writeCmdLength(pos, QRectF(), false);-
228}-
229-
230void QPicturePaintEngine::updateClipRegion(const QRegion &region, Qt::ClipOperation op)-
231{-
232 QPicturePaintEnginePrivate * const d = d_func();-
233-
234-
235-
236-
237 int pos;-
238 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetClipRegion; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
239 d->s << region << qint8(op);-
240 writeCmdLength(pos, QRectF(), false);-
241}-
242-
243void QPicturePaintEngine::updateClipPath(const QPainterPath &path, Qt::ClipOperation op)-
244{-
245 QPicturePaintEnginePrivate * const d = d_func();-
246-
247-
248-
249-
250 int pos;-
251-
252 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetClipPath; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
253 d->s << path << qint8(op);-
254 writeCmdLength(pos, QRectF(), false);-
255}-
256-
257void QPicturePaintEngine::updateRenderHints(QPainter::RenderHints hints)-
258{-
259 QPicturePaintEnginePrivate * const d = d_func();-
260-
261-
262-
263 int pos;-
264 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcSetRenderHint; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
265 d->s << (quint32) hints;-
266 writeCmdLength(pos, QRect(), false);-
267}-
268-
269void QPicturePaintEngine::writeCmdLength(int pos, const QRectF &r, bool corr)-
270{-
271 QPicturePaintEnginePrivate * const d = d_func();-
272 int newpos = d->pic_d->pictb.pos();-
273 int length = newpos - pos;-
274 QRectF br(r);-
275-
276 if (length < 255) {-
277 d->pic_d->pictb.seek(pos - 1);-
278 d->s << (quint8)length;-
279 } else {-
280 d->s << (quint32)0;-
281 d->pic_d->pictb.seek(pos - 1);-
282 d->s << (quint8)255;-
283 char *p = d->pic_d->pictb.buffer().data();-
284 memmove(p+pos+4, p+pos, length);-
285 d->s << (quint32)length;-
286 newpos += 4;-
287 }-
288 d->pic_d->pictb.seek(newpos);-
289-
290 if (br.width() > 0.0 || br.height() > 0.0) {-
291 if (corr) {-
292 int w2 = painter()->pen().width() / 2;-
293 br.setCoords(br.left() - w2, br.top() - w2,-
294 br.right() + w2, br.bottom() + w2);-
295 }-
296 br = painter()->transform().mapRect(br);-
297 if (painter()->hasClipping()) {-
298 QRectF cr = painter()->clipBoundingRect();-
299 br &= cr;-
300 }-
301-
302 if (br.width() > 0.0 || br.height() > 0.0) {-
303 int minx = qFloor(br.left());-
304 int miny = qFloor(br.top());-
305 int maxx = qCeil(br.right());-
306 int maxy = qCeil(br.bottom());-
307-
308 if (d->pic_d->brect.width() > 0 || d->pic_d->brect.height() > 0) {-
309 minx = qMin(minx, d->pic_d->brect.left());-
310 miny = qMin(miny, d->pic_d->brect.top());-
311 maxx = qMax(maxx, d->pic_d->brect.x() + d->pic_d->brect.width());-
312 maxy = qMax(maxy, d->pic_d->brect.y() + d->pic_d->brect.height());-
313 d->pic_d->brect = QRect(minx, miny, maxx - minx, maxy - miny);-
314 } else {-
315 d->pic_d->brect = QRect(minx, miny, maxx - minx, maxy - miny);-
316 }-
317 }-
318 }-
319}-
320-
321void QPicturePaintEngine::drawEllipse(const QRectF &rect)-
322{-
323 QPicturePaintEnginePrivate * const d = d_func();-
324-
325-
326-
327 int pos;-
328 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcDrawEllipse; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
329 d->s << rect;-
330 writeCmdLength(pos, rect, true);-
331}-
332-
333void QPicturePaintEngine::drawPath(const QPainterPath &path)-
334{-
335 QPicturePaintEnginePrivate * const d = d_func();-
336-
337-
338-
339 int pos;-
340 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcDrawPath; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
341 d->s << path;-
342 writeCmdLength(pos, path.boundingRect(), true);-
343}-
344-
345void QPicturePaintEngine::drawPolygon(const QPointF *points, int numPoints, PolygonDrawMode mode)-
346{-
347 QPicturePaintEnginePrivate * const d = d_func();-
348-
349-
350-
351 int pos;-
352-
353 QPolygonF polygon;-
354 polygon.reserve(numPoints);-
355 for (int i=0; i<numPoints; ++i)-
356 polygon << points[i];-
357-
358 if (mode == PolylineMode) {-
359 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcDrawPolyline; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
360 d->s << polygon;-
361 } else {-
362 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcDrawPolygon; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
363 d->s << polygon;-
364 d->s << (qint8)(mode == OddEvenMode ? 0 : 1);-
365 }-
366-
367 writeCmdLength(pos, polygon.boundingRect(), true);-
368}-
369-
370void QPicturePaintEngine::drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr)-
371{-
372 QPicturePaintEnginePrivate * const d = d_func();-
373-
374-
375-
376 int pos;-
377 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcDrawPixmap; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
378-
379 if (d->pic_d->in_memory_only) {-
380 int index = d->pic_d->pixmap_list.size();-
381 d->pic_d->pixmap_list.append(pm);-
382 d->s << r << index << sr;-
383 } else {-
384 d->s << r << pm << sr;-
385 }-
386 writeCmdLength(pos, r, false);-
387}-
388-
389void QPicturePaintEngine::drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &s)-
390{-
391 QPicturePaintEnginePrivate * const d = d_func();-
392-
393-
394-
395 int pos;-
396 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcDrawTiledPixmap; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
397 if (d->pic_d->in_memory_only) {-
398 int index = d->pic_d->pixmap_list.size();-
399 d->pic_d->pixmap_list.append(pixmap);-
400 d->s << r << index << s;-
401 } else {-
402 d->s << r << pixmap << s;-
403 }-
404 writeCmdLength(pos, r, false);-
405}-
406-
407void QPicturePaintEngine::drawImage(const QRectF &r, const QImage &image, const QRectF &sr,-
408 Qt::ImageConversionFlags flags)-
409{-
410 QPicturePaintEnginePrivate * const d = d_func();-
411-
412-
413-
414 int pos;-
415 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcDrawImage; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
416 if (d->pic_d->in_memory_only) {-
417 int index = d->pic_d->image_list.size();-
418 d->pic_d->image_list.append(image);-
419 d->s << r << index << sr << (quint32) flags;-
420 } else {-
421 d->s << r << image << sr << (quint32) flags;-
422 }-
423 writeCmdLength(pos, r, false);-
424}-
425-
426void QPicturePaintEngine::drawTextItem(const QPointF &p , const QTextItem &ti)-
427{-
428 QPicturePaintEnginePrivate * const d = d_func();-
429-
430-
431-
432-
433 const QTextItemInt &si = static_cast<const QTextItemInt &>(ti);-
434 if (si.chars == 0)-
435 QPaintEngine::drawTextItem(p, ti);-
436-
437 if (d->pic_d->formatMajor >= 9) {-
438 int pos;-
439 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcDrawTextItem; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
440 QFont fnt = ti.font();-
441 fnt.setUnderline(false);-
442 fnt.setStrikeOut(false);-
443 fnt.setOverline(false);-
444-
445 qreal justificationWidth = 0;-
446 if (si.justified)-
447 justificationWidth = si.width.toReal();-
448-
449 d->s << p << ti.text() << fnt << ti.renderFlags() << double(fnt.d->dpi)/qt_defaultDpi() << justificationWidth;-
450 writeCmdLength(pos, QRectF(), false);-
451 } else if (d->pic_d->formatMajor >= 8) {-
452-
453 int pos;-
454 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcDrawTextItem; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
455 d->s << QPointF(p.x(), p.y() - ti.ascent()) << ti.text() << ti.font() << ti.renderFlags();-
456 writeCmdLength(pos, QRectF(), false);-
457 } else {-
458-
459 int pos;-
460 d->pic_d->trecs++; d->s << (quint8) QPicturePrivate::PdcDrawText2; d->s << (quint8) 0; pos = d->pic_d->pictb.pos();-
461 d->s << p << ti.text();-
462 writeCmdLength(pos, QRectF(p, QSizeF(1,1)), true);-
463 }-
464}-
465-
466void QPicturePaintEngine::updateState(const QPaintEngineState &state)-
467{-
468 QPaintEngine::DirtyFlags flags = state.state();-
469 if (flags & DirtyPen) updatePen(state.pen());-
470 if (flags & DirtyBrush) updateBrush(state.brush());-
471 if (flags & DirtyBrushOrigin) updateBrushOrigin(state.brushOrigin());-
472 if (flags & DirtyFont) updateFont(state.font());-
473 if (flags & DirtyBackground) updateBackground(state.backgroundMode(), state.backgroundBrush());-
474 if (flags & DirtyTransform) updateMatrix(state.transform());-
475 if (flags & DirtyClipEnabled) updateClipEnabled(state.isClipEnabled());-
476 if (flags & DirtyClipRegion) updateClipRegion(state.clipRegion(), state.clipOperation());-
477 if (flags & DirtyClipPath) updateClipPath(state.clipPath(), state.clipOperation());-
478 if (flags & DirtyHints) updateRenderHints(state.renderHints());-
479 if (flags & DirtyCompositionMode) updateCompositionMode(state.compositionMode());-
480 if (flags & DirtyOpacity) updateOpacity(state.opacity());-
481}-
482-
483-
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