qpicture.cpp

Absolute File Name:/home/qt/qt5_coco/qt5/qtbase/src/gui/image/qpicture.cpp
Source codeSwitch to Preprocessed file
LineSourceCount
1/****************************************************************************-
2**-
3** Copyright (C) 2015 The Qt Company Ltd.-
4** Contact: http://www.qt.io/licensing/-
5**-
6** This file is part of the QtGui module of the Qt Toolkit.-
7**-
8** $QT_BEGIN_LICENSE:LGPL21$-
9** Commercial License Usage-
10** Licensees holding valid commercial Qt licenses may use this file in-
11** accordance with the commercial license agreement provided with the-
12** Software or, alternatively, in accordance with the terms contained in-
13** a written agreement between you and The Qt Company. For licensing terms-
14** and conditions see http://www.qt.io/terms-conditions. For further-
15** information use the contact form at http://www.qt.io/contact-us.-
16**-
17** GNU Lesser General Public License Usage-
18** Alternatively, this file may be used under the terms of the GNU Lesser-
19** General Public License version 2.1 or version 3 as published by the Free-
20** Software Foundation and appearing in the file LICENSE.LGPLv21 and-
21** LICENSE.LGPLv3 included in the packaging of this file. Please review the-
22** following information to ensure the GNU Lesser General Public License-
23** requirements will be met: https://www.gnu.org/licenses/lgpl.html and-
24** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.-
25**-
26** As a special exception, The Qt Company gives you certain additional-
27** rights. These rights are described in The Qt Company LGPL Exception-
28** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.-
29**-
30** $QT_END_LICENSE$-
31**-
32****************************************************************************/-
33-
34#include "qpicture.h"-
35#include <private/qpicture_p.h>-
36-
37#ifndef QT_NO_PICTURE-
38-
39#include <private/qfactoryloader_p.h>-
40#include <private/qpaintengine_pic_p.h>-
41#include <private/qfont_p.h>-
42#include <qguiapplication.h>-
43-
44#include "qdatastream.h"-
45#include "qfile.h"-
46#include "qimage.h"-
47#include "qmutex.h"-
48#include "qpainter.h"-
49#include "qpainterpath.h"-
50#include "qpixmap.h"-
51#include "qregion.h"-
52#include "qdebug.h"-
53-
54#include <algorithm>-
55-
56QT_BEGIN_NAMESPACE-
57-
58void qt_format_text(const QFont &fnt, const QRectF &_r,-
59 int tf, const QTextOption *opt, const QString& str, QRectF *brect,-
60 int tabstops, int *, int tabarraylen,-
61 QPainter *painter);-
62-
63/*!-
64 \class QPicture-
65 \brief The QPicture class is a paint device that records and-
66 replays QPainter commands.-
67-
68 \inmodule QtGui-
69 \ingroup shared-
70-
71-
72 A picture serializes painter commands to an IO device in a-
73 platform-independent format. They are sometimes referred to as meta-files.-
74-
75 Qt pictures use a proprietary binary format. Unlike native picture-
76 (meta-file) formats on many window systems, Qt pictures have no-
77 limitations regarding their contents. Everything that can be-
78 painted on a widget or pixmap (e.g., fonts, pixmaps, regions,-
79 transformed graphics, etc.) can also be stored in a picture.-
80-
81 QPicture is resolution independent, i.e. a QPicture can be-
82 displayed on different devices (for example svg, pdf, ps, printer-
83 and screen) looking the same. This is, for instance, needed for-
84 WYSIWYG print preview. QPicture runs in the default system dpi,-
85 and scales the painter to match differences in resolution-
86 depending on the window system.-
87-
88 Example of how to record a picture:-
89 \snippet picture/picture.cpp 0-
90-
91 Note that the list of painter commands is reset on each call to-
92 the QPainter::begin() function.-
93-
94 Example of how to replay a picture:-
95 \snippet picture/picture.cpp 1-
96-
97 Pictures can also be drawn using play(). Some basic data about a-
98 picture is available, for example, size(), isNull() and-
99 boundingRect().-
100-
101 \sa QMovie-
102*/-
103-
104/*!-
105 \fn QPicture &QPicture::operator=(QPicture &&other)-
106-
107 Move-assigns \a other to this QPicture instance.-
108-
109 \since 5.2-
110*/-
111-
112const char *qt_mfhdr_tag = "QPIC"; // header tag-
113static const quint16 mfhdr_maj = QDataStream::Qt_DefaultCompiledVersion; // major version #-
114static const quint16 mfhdr_min = 0; // minor version #-
115-
116/*!-
117 Constructs an empty picture.-
118-
119 The \a formatVersion parameter may be used to \e create a QPicture-
120 that can be read by applications that are compiled with earlier-
121 versions of Qt.-
122-
123 Note that the default formatVersion is -1 which signifies the-
124 current release, i.e. for Qt 4.0 a formatVersion of 7 is the same-
125 as the default formatVersion of -1.-
126-
127 Reading pictures generated by earlier versions of Qt is not-
128 supported in Qt 4.0.-
129*/-
130-
131QPicture::QPicture(int formatVersion)-
132 : QPaintDevice(),-
133 d_ptr(new QPicturePrivate)-
134{-
135 Q_D(QPicture);-
136-
137 if (formatVersion == 0)
formatVersion == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
138 qWarning("QPicture: invalid format version 0");
never executed: QMessageLogger(__FILE__, 138, __PRETTY_FUNCTION__).warning("QPicture: invalid format version 0");
0
139-
140 // still accept the 0 default from before Qt 3.0.-
141 if (formatVersion > 0 && formatVersion != (int)mfhdr_maj) {
formatVersion > 0Description
TRUEnever evaluated
FALSEnever evaluated
formatVersion ...(int)mfhdr_majDescription
TRUEnever evaluated
FALSEnever evaluated
0
142 d->formatMajor = formatVersion;-
143 d->formatMinor = 0;-
144 d->formatOk = false;-
145 } else {
never executed: end of block
0
146 d->resetFormat();-
147 }
never executed: end of block
0
148}-
149-
150/*!-
151 Constructs a copy of \a pic.-
152-
153 This constructor is fast thanks to \l{implicit sharing}.-
154*/-
155-
156QPicture::QPicture(const QPicture &pic)-
157 : QPaintDevice(), d_ptr(pic.d_ptr)-
158{-
159}
never executed: end of block
0
160-
161/*! \internal */-
162QPicture::QPicture(QPicturePrivate &dptr)-
163 : QPaintDevice(),-
164 d_ptr(&dptr)-
165{-
166}
never executed: end of block
0
167-
168/*!-
169 Destroys the picture.-
170*/-
171QPicture::~QPicture()-
172{-
173}-
174-
175/*!-
176 \internal-
177*/-
178int QPicture::devType() const-
179{-
180 return QInternal::Picture;
never executed: return QInternal::Picture;
0
181}-
182-
183/*!-
184 \fn bool QPicture::isNull() const-
185-
186 Returns \c true if the picture contains no data; otherwise returns-
187 false.-
188*/-
189-
190/*!-
191 \fn uint QPicture::size() const-
192-
193 Returns the size of the picture data.-
194-
195 \sa data()-
196*/-
197-
198/*!-
199 \fn const char* QPicture::data() const-
200-
201 Returns a pointer to the picture data. The pointer is only valid-
202 until the next non-const function is called on this picture. The-
203 returned pointer is 0 if the picture contains no data.-
204-
205 \sa size(), isNull()-
206*/-
207-
208-
209bool QPicture::isNull() const-
210{-
211 return d_func()->pictb.buffer().isNull();
never executed: return d_func()->pictb.buffer().isNull();
0
212}-
213-
214uint QPicture::size() const-
215{-
216 return d_func()->pictb.buffer().size();
never executed: return d_func()->pictb.buffer().size();
0
217}-
218-
219const char* QPicture::data() const-
220{-
221 return d_func()->pictb.buffer();
never executed: return d_func()->pictb.buffer();
0
222}-
223-
224void QPicture::detach()-
225{-
226 d_ptr.detach();-
227}
never executed: end of block
0
228-
229bool QPicture::isDetached() const-
230{-
231 return d_func()->ref.load() == 1;
never executed: return d_func()->ref.load() == 1;
0
232}-
233-
234/*!-
235 Sets the picture data directly from \a data and \a size. This-
236 function copies the input data.-
237-
238 \sa data(), size()-
239*/-
240-
241void QPicture::setData(const char* data, uint size)-
242{-
243 detach();-
244 d_func()->pictb.setData(data, size);-
245 d_func()->resetFormat(); // we'll have to check-
246}
never executed: end of block
0
247-
248-
249/*!-
250 Loads a picture from the file specified by \a fileName and returns-
251 true if successful; otherwise invalidates the picture and returns \c false.-
252-
253 Please note that the \a format parameter has been deprecated and-
254 will have no effect.-
255-
256 \sa save()-
257*/-
258-
259bool QPicture::load(const QString &fileName, const char *format)-
260{-
261 QFile f(fileName);-
262 if (!f.open(QIODevice::ReadOnly)) {
!f.open(QIODevice::ReadOnly)Description
TRUEnever evaluated
FALSEnever evaluated
0
263 operator=(QPicture());-
264 return false;
never executed: return false;
0
265 }-
266 return load(&f, format);
never executed: return load(&f, format);
0
267}-
268-
269/*!-
270 \overload-
271-
272 \a dev is the device to use for loading.-
273*/-
274-
275bool QPicture::load(QIODevice *dev, const char *format)-
276{-
277 if(format) {
formatDescription
TRUEnever evaluated
FALSEnever evaluated
0
278#ifndef QT_NO_PICTUREIO-
279 QPictureIO io(dev, format);-
280 if (io.read()) {
io.read()Description
TRUEnever evaluated
FALSEnever evaluated
0
281 operator=(io.picture());-
282 return true;
never executed: return true;
0
283 }-
284#endif-
285 qWarning("QPicture::load: No such picture format: %s", format);-
286 operator=(QPicture());-
287 return false;
never executed: return false;
0
288 }-
289-
290 detach();-
291 QByteArray a = dev->readAll();-
292-
293 d_func()->pictb.setData(a); // set byte array in buffer-
294 return d_func()->checkFormat();
never executed: return d_func()->checkFormat();
0
295}-
296-
297/*!-
298 Saves a picture to the file specified by \a fileName and returns-
299 true if successful; otherwise returns \c false.-
300-
301 Please note that the \a format parameter has been deprecated and-
302 will have no effect.-
303-
304 \sa load()-
305*/-
306-
307bool QPicture::save(const QString &fileName, const char *format)-
308{-
309 if (paintingActive()) {
paintingActive()Description
TRUEnever evaluated
FALSEnever evaluated
0
310 qWarning("QPicture::save: still being painted on. "-
311 "Call QPainter::end() first");-
312 return false;
never executed: return false;
0
313 }-
314-
315-
316 if(format) {
formatDescription
TRUEnever evaluated
FALSEnever evaluated
0
317#ifndef QT_NO_PICTUREIO-
318 QPictureIO io(fileName, format);-
319 bool result = io.write();-
320 if (result) {
resultDescription
TRUEnever evaluated
FALSEnever evaluated
0
321 operator=(io.picture());-
322 } else if (format)
never executed: end of block
formatDescription
TRUEnever evaluated
FALSEnever evaluated
0
323#else-
324 bool result = false;-
325#endif-
326 {-
327 qWarning("QPicture::save: No such picture format: %s", format);-
328 }
never executed: end of block
0
329 return result;
never executed: return result;
0
330 }-
331-
332 QFile f(fileName);-
333 if (!f.open(QIODevice::WriteOnly))
!f.open(QIODevice::WriteOnly)Description
TRUEnever evaluated
FALSEnever evaluated
0
334 return false;
never executed: return false;
0
335 return save(&f, format);
never executed: return save(&f, format);
0
336}-
337-
338/*!-
339 \overload-
340-
341 \a dev is the device to use for saving.-
342*/-
343-
344bool QPicture::save(QIODevice *dev, const char *format)-
345{-
346 if (paintingActive()) {
paintingActive()Description
TRUEnever evaluated
FALSEnever evaluated
0
347 qWarning("QPicture::save: still being painted on. "-
348 "Call QPainter::end() first");-
349 return false;
never executed: return false;
0
350 }-
351-
352 if(format) {
formatDescription
TRUEnever evaluated
FALSEnever evaluated
0
353#ifndef QT_NO_PICTUREIO-
354 QPictureIO io(dev, format);-
355 bool result = io.write();-
356 if (result) {
resultDescription
TRUEnever evaluated
FALSEnever evaluated
0
357 operator=(io.picture());-
358 } else if (format)
never executed: end of block
formatDescription
TRUEnever evaluated
FALSEnever evaluated
0
359#else-
360 bool result = false;-
361#endif-
362 {-
363 qWarning("QPicture::save: No such picture format: %s", format);-
364 }
never executed: end of block
0
365 return result;
never executed: return result;
0
366 }-
367-
368 dev->write(d_func()->pictb.buffer(), d_func()->pictb.buffer().size());-
369 return true;
never executed: return true;
0
370}-
371-
372/*!-
373 Returns the picture's bounding rectangle or an invalid rectangle-
374 if the picture contains no data.-
375*/-
376-
377QRect QPicture::boundingRect() const-
378{-
379 Q_D(const QPicture);-
380 // Use override rect where possible.-
381 if (!d->override_rect.isEmpty())
!d->override_rect.isEmpty()Description
TRUEnever evaluated
FALSEnever evaluated
0
382 return d->override_rect;
never executed: return d->override_rect;
0
383-
384 if (!d->formatOk)
!d->formatOkDescription
TRUEnever evaluated
FALSEnever evaluated
0
385 d_ptr->checkFormat();
never executed: d_ptr->checkFormat();
0
386-
387 return d->brect;
never executed: return d->brect;
0
388}-
389-
390/*!-
391 Sets the picture's bounding rectangle to \a r. The automatically-
392 calculated value is overridden.-
393*/-
394-
395void QPicture::setBoundingRect(const QRect &r)-
396{-
397 d_func()->override_rect = r;-
398}
never executed: end of block
0
399-
400/*!-
401 Replays the picture using \a painter, and returns \c true if-
402 successful; otherwise returns \c false.-
403-
404 This function does exactly the same as QPainter::drawPicture()-
405 with (x, y) = (0, 0).-
406*/-
407-
408bool QPicture::play(QPainter *painter)-
409{-
410 Q_D(QPicture);-
411-
412 if (d->pictb.size() == 0) // nothing recorded
d->pictb.size() == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
413 return true;
never executed: return true;
0
414-
415 if (!d->formatOk && !d->checkFormat())
!d->formatOkDescription
TRUEnever evaluated
FALSEnever evaluated
!d->checkFormat()Description
TRUEnever evaluated
FALSEnever evaluated
0
416 return false;
never executed: return false;
0
417-
418 d->pictb.open(QIODevice::ReadOnly); // open buffer device-
419 QDataStream s;-
420 s.setDevice(&d->pictb); // attach data stream to buffer-
421 s.device()->seek(10); // go directly to the data-
422 s.setVersion(d->formatMajor == 4 ? 3 : d->formatMajor);-
423-
424 quint8 c, clen;-
425 quint32 nrecords;-
426 s >> c >> clen;-
427 Q_ASSERT(c == QPicturePrivate::PdcBegin);-
428 // bounding rect was introduced in ver 4. Read in checkFormat().-
429 if (d->formatMajor >= 4) {
d->formatMajor >= 4Description
TRUEnever evaluated
FALSEnever evaluated
0
430 qint32 dummy;-
431 s >> dummy >> dummy >> dummy >> dummy;-
432 }
never executed: end of block
0
433 s >> nrecords;-
434 if (!exec(painter, s, nrecords)) {
!exec(painter, s, nrecords)Description
TRUEnever evaluated
FALSEnever evaluated
0
435 qWarning("QPicture::play: Format error");-
436 d->pictb.close();-
437 return false;
never executed: return false;
0
438 }-
439 d->pictb.close();-
440 return true; // no end-command
never executed: return true;
0
441}-
442-
443-
444//-
445// QFakeDevice is used to create fonts with a custom DPI-
446//-
447class QFakeDevice : public QPaintDevice-
448{-
449public:-
450 QFakeDevice() { dpi_x = qt_defaultDpiX(); dpi_y = qt_defaultDpiY(); }
never executed: end of block
0
451 void setDpiX(int dpi) { dpi_x = dpi; }
never executed: end of block
0
452 void setDpiY(int dpi) { dpi_y = dpi; }
never executed: end of block
0
453 QPaintEngine *paintEngine() const Q_DECL_OVERRIDE { return 0; }
never executed: return 0;
0
454 int metric(PaintDeviceMetric m) const Q_DECL_OVERRIDE-
455 {-
456 switch(m) {-
457 case PdmPhysicalDpiX:
never executed: case PdmPhysicalDpiX:
0
458 case PdmDpiX:
never executed: case PdmDpiX:
0
459 return dpi_x;
never executed: return dpi_x;
0
460 case PdmPhysicalDpiY:
never executed: case PdmPhysicalDpiY:
0
461 case PdmDpiY:
never executed: case PdmDpiY:
0
462 return dpi_y;
never executed: return dpi_y;
0
463 default:
never executed: default:
0
464 return QPaintDevice::metric(m);
never executed: return QPaintDevice::metric(m);
0
465 }-
466 }-
467-
468private:-
469 int dpi_x;-
470 int dpi_y;-
471};-
472-
473/*!-
474 \internal-
475 Iterates over the internal picture data and draws the picture using-
476 \a painter.-
477*/-
478-
479bool QPicture::exec(QPainter *painter, QDataStream &s, int nrecords)-
480{-
481 Q_D(QPicture);-
482#if defined(QT_DEBUG)-
483 int strm_pos;-
484#endif-
485 quint8 c; // command id-
486 quint8 tiny_len; // 8-bit length descriptor-
487 qint32 len; // 32-bit length descriptor-
488 qint16 i_16, i1_16, i2_16; // parameters...-
489 qint8 i_8;-
490 quint32 ul;-
491 double dbl;-
492 bool bl;-
493 QByteArray str1;-
494 QString str;-
495 QPointF p, p1, p2;-
496 QPoint ip, ip1, ip2;-
497 QRect ir;-
498 QRectF r;-
499 QPolygonF a;-
500 QPolygon ia;-
501 QColor color;-
502 QFont font;-
503 QPen pen;-
504 QBrush brush;-
505 QRegion rgn;-
506 QMatrix wmatrix;-
507 QTransform matrix;-
508-
509 QTransform worldMatrix = painter->transform();-
510 worldMatrix.scale(qreal(painter->device()->logicalDpiX()) / qreal(qt_defaultDpiX()),-
511 qreal(painter->device()->logicalDpiY()) / qreal(qt_defaultDpiY()));-
512 painter->setTransform(worldMatrix);-
513-
514 while (nrecords-- && !s.atEnd()) {
nrecords--Description
TRUEnever evaluated
FALSEnever evaluated
!s.atEnd()Description
TRUEnever evaluated
FALSEnever evaluated
0
515 s >> c; // read cmd-
516 s >> tiny_len; // read param length-
517 if (tiny_len == 255) // longer than 254 bytes
tiny_len == 255Description
TRUEnever evaluated
FALSEnever evaluated
0
518 s >> len;
never executed: s >> len;
0
519 else-
520 len = tiny_len;
never executed: len = tiny_len;
0
521#if defined(QT_DEBUG)-
522 strm_pos = s.device()->pos();-
523#endif-
524 switch (c) { // exec cmd-
525 case QPicturePrivate::PdcNOP:
never executed: case QPicturePrivate::PdcNOP:
0
526 break;
never executed: break;
0
527 case QPicturePrivate::PdcDrawPoint:
never executed: case QPicturePrivate::PdcDrawPoint:
0
528 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
529 s >> ip;-
530 painter->drawPoint(ip);-
531 } else {
never executed: end of block
0
532 s >> p;-
533 painter->drawPoint(p);-
534 }
never executed: end of block
0
535 break;
never executed: break;
0
536 case QPicturePrivate::PdcDrawPoints:
never executed: case QPicturePrivate::PdcDrawPoints:
0
537// ## implement me in the picture paint engine-
538// s >> a >> i1_32 >> i2_32;-
539// painter->drawPoints(a.mid(i1_32, i2_32));-
540 break;
never executed: break;
0
541 case QPicturePrivate::PdcDrawPath: {
never executed: case QPicturePrivate::PdcDrawPath:
0
542 QPainterPath path;-
543 s >> path;-
544 painter->drawPath(path);-
545 break;
never executed: break;
0
546 }-
547 case QPicturePrivate::PdcDrawLine:
never executed: case QPicturePrivate::PdcDrawLine:
0
548 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
549 s >> ip1 >> ip2;-
550 painter->drawLine(ip1, ip2);-
551 } else {
never executed: end of block
0
552 s >> p1 >> p2;-
553 painter->drawLine(p1, p2);-
554 }
never executed: end of block
0
555 break;
never executed: break;
0
556 case QPicturePrivate::PdcDrawRect:
never executed: case QPicturePrivate::PdcDrawRect:
0
557 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
558 s >> ir;-
559 painter->drawRect(ir);-
560 } else {
never executed: end of block
0
561 s >> r;-
562 painter->drawRect(r);-
563 }
never executed: end of block
0
564 break;
never executed: break;
0
565 case QPicturePrivate::PdcDrawRoundRect:
never executed: case QPicturePrivate::PdcDrawRoundRect:
0
566 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
567 s >> ir >> i1_16 >> i2_16;-
568 painter->drawRoundedRect(ir, i1_16, i2_16, Qt::RelativeSize);-
569 } else {
never executed: end of block
0
570 s >> r >> i1_16 >> i2_16;-
571 painter->drawRoundedRect(r, i1_16, i2_16, Qt::RelativeSize);-
572 }
never executed: end of block
0
573 break;
never executed: break;
0
574 case QPicturePrivate::PdcDrawEllipse:
never executed: case QPicturePrivate::PdcDrawEllipse:
0
575 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
576 s >> ir;-
577 painter->drawEllipse(ir);-
578 } else {
never executed: end of block
0
579 s >> r;-
580 painter->drawEllipse(r);-
581 }
never executed: end of block
0
582 break;
never executed: break;
0
583 case QPicturePrivate::PdcDrawArc:
never executed: case QPicturePrivate::PdcDrawArc:
0
584 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
585 s >> ir;-
586 r = ir;-
587 } else {
never executed: end of block
0
588 s >> r;-
589 }
never executed: end of block
0
590 s >> i1_16 >> i2_16;-
591 painter->drawArc(r, i1_16, i2_16);-
592 break;
never executed: break;
0
593 case QPicturePrivate::PdcDrawPie:
never executed: case QPicturePrivate::PdcDrawPie:
0
594 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
595 s >> ir;-
596 r = ir;-
597 } else {
never executed: end of block
0
598 s >> r;-
599 }
never executed: end of block
0
600 s >> i1_16 >> i2_16;-
601 painter->drawPie(r, i1_16, i2_16);-
602 break;
never executed: break;
0
603 case QPicturePrivate::PdcDrawChord:
never executed: case QPicturePrivate::PdcDrawChord:
0
604 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
605 s >> ir;-
606 r = ir;-
607 } else {
never executed: end of block
0
608 s >> r;-
609 }
never executed: end of block
0
610 s >> i1_16 >> i2_16;-
611 painter->drawChord(r, i1_16, i2_16);-
612 break;
never executed: break;
0
613 case QPicturePrivate::PdcDrawLineSegments:
never executed: case QPicturePrivate::PdcDrawLineSegments:
0
614 s >> ia;-
615 painter->drawLines(ia);-
616 ia.clear();-
617 break;
never executed: break;
0
618 case QPicturePrivate::PdcDrawPolyline:
never executed: case QPicturePrivate::PdcDrawPolyline:
0
619 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
620 s >> ia;-
621 painter->drawPolyline(ia);-
622 ia.clear();-
623 } else {
never executed: end of block
0
624 s >> a;-
625 painter->drawPolyline(a);-
626 a.clear();-
627 }
never executed: end of block
0
628 break;
never executed: break;
0
629 case QPicturePrivate::PdcDrawPolygon:
never executed: case QPicturePrivate::PdcDrawPolygon:
0
630 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
631 s >> ia >> i_8;-
632 painter->drawPolygon(ia, i_8 ? Qt::WindingFill : Qt::OddEvenFill);-
633 a.clear();-
634 } else {
never executed: end of block
0
635 s >> a >> i_8;-
636 painter->drawPolygon(a, i_8 ? Qt::WindingFill : Qt::OddEvenFill);-
637 a.clear();-
638 }
never executed: end of block
0
639 break;
never executed: break;
0
640 case QPicturePrivate::PdcDrawCubicBezier: {
never executed: case QPicturePrivate::PdcDrawCubicBezier:
0
641 s >> ia;-
642 QPainterPath path;-
643 Q_ASSERT(ia.size() == 4);-
644 path.moveTo(ia.at(0));-
645 path.cubicTo(ia.at(1), ia.at(2), ia.at(3));-
646 painter->strokePath(path, painter->pen());-
647 a.clear();-
648 }-
649 break;
never executed: break;
0
650 case QPicturePrivate::PdcDrawText:
never executed: case QPicturePrivate::PdcDrawText:
0
651 s >> ip >> str1;-
652 painter->drawText(ip, QString::fromLatin1(str1));-
653 break;
never executed: break;
0
654 case QPicturePrivate::PdcDrawTextFormatted:
never executed: case QPicturePrivate::PdcDrawTextFormatted:
0
655 s >> ir >> i_16 >> str1;-
656 painter->drawText(ir, i_16, QString::fromLatin1(str1));-
657 break;
never executed: break;
0
658 case QPicturePrivate::PdcDrawText2:
never executed: case QPicturePrivate::PdcDrawText2:
0
659 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
660 s >> ip >> str;-
661 painter->drawText(ip, str);-
662 } else {
never executed: end of block
0
663 s >> p >> str;-
664 painter->drawText(p, str);-
665 }
never executed: end of block
0
666 break;
never executed: break;
0
667 case QPicturePrivate::PdcDrawText2Formatted:
never executed: case QPicturePrivate::PdcDrawText2Formatted:
0
668 s >> ir;-
669 s >> i_16;-
670 s >> str;-
671 painter->drawText(ir, i_16, str);-
672 break;
never executed: break;
0
673 case QPicturePrivate::PdcDrawTextItem: {
never executed: case QPicturePrivate::PdcDrawTextItem:
0
674 s >> p >> str >> font >> ul;-
675-
676 // the text layout direction is not used here because it's already-
677 // aligned when QPicturePaintEngine::drawTextItem() serializes the-
678 // drawText() call, therefore ul is unsed in this context-
679-
680 if (d->formatMajor >= 9) {
d->formatMajor >= 9Description
TRUEnever evaluated
FALSEnever evaluated
0
681 s >> dbl;-
682 QFont fnt(font);-
683 if (dbl != 1.0) {
dbl != 1.0Description
TRUEnever evaluated
FALSEnever evaluated
0
684 QFakeDevice fake;-
685 fake.setDpiX(qRound(dbl*qt_defaultDpiX()));-
686 fake.setDpiY(qRound(dbl*qt_defaultDpiY()));-
687 fnt = QFont(font, &fake);-
688 }
never executed: end of block
0
689-
690 qreal justificationWidth;-
691 s >> justificationWidth;-
692-
693 int flags = Qt::TextSingleLine | Qt::TextDontClip | Qt::TextForceLeftToRight;-
694-
695 QSizeF size(1, 1);-
696 if (justificationWidth > 0) {
justificationWidth > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
697 size.setWidth(justificationWidth);-
698 flags |= Qt::TextJustificationForced;-
699 flags |= Qt::AlignJustify;-
700 }
never executed: end of block
0
701-
702 QFontMetrics fm(fnt);-
703 QPointF pt(p.x(), p.y() - fm.ascent());-
704 qt_format_text(fnt, QRectF(pt, size), flags, /*opt*/0,-
705 str, /*brect=*/0, /*tabstops=*/0, /*...*/0, /*tabarraylen=*/0, painter);-
706 } else {
never executed: end of block
0
707 qt_format_text(font, QRectF(p, QSizeF(1, 1)), Qt::TextSingleLine | Qt::TextDontClip, /*opt*/0,-
708 str, /*brect=*/0, /*tabstops=*/0, /*...*/0, /*tabarraylen=*/0, painter);-
709 }
never executed: end of block
0
710-
711 break;
never executed: break;
0
712 }-
713 case QPicturePrivate::PdcDrawPixmap: {
never executed: case QPicturePrivate::PdcDrawPixmap:
0
714 QPixmap pixmap;-
715 if (d->formatMajor < 4) {
d->formatMajor < 4Description
TRUEnever evaluated
FALSEnever evaluated
0
716 s >> ip >> pixmap;-
717 painter->drawPixmap(ip, pixmap);-
718 } else if (d->formatMajor <= 5) {
never executed: end of block
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
719 s >> ir >> pixmap;-
720 painter->drawPixmap(ir, pixmap);-
721 } else {
never executed: end of block
0
722 QRectF sr;-
723 if (d->in_memory_only) {
d->in_memory_onlyDescription
TRUEnever evaluated
FALSEnever evaluated
0
724 int index;-
725 s >> r >> index >> sr;-
726 Q_ASSERT(index < d->pixmap_list.size());-
727 pixmap = d->pixmap_list.at(index);-
728 } else {
never executed: end of block
0
729 s >> r >> pixmap >> sr;-
730 }
never executed: end of block
0
731 painter->drawPixmap(r, pixmap, sr);-
732 }
never executed: end of block
0
733 }-
734 break;
never executed: break;
0
735 case QPicturePrivate::PdcDrawTiledPixmap: {
never executed: case QPicturePrivate::PdcDrawTiledPixmap:
0
736 QPixmap pixmap;-
737 if (d->in_memory_only) {
d->in_memory_onlyDescription
TRUEnever evaluated
FALSEnever evaluated
0
738 int index;-
739 s >> r >> index >> p;-
740 Q_ASSERT(index < d->pixmap_list.size());-
741 pixmap = d->pixmap_list.at(index);-
742 } else {
never executed: end of block
0
743 s >> r >> pixmap >> p;-
744 }
never executed: end of block
0
745 painter->drawTiledPixmap(r, pixmap, p);-
746 }-
747 break;
never executed: break;
0
748 case QPicturePrivate::PdcDrawImage: {
never executed: case QPicturePrivate::PdcDrawImage:
0
749 QImage image;-
750 if (d->formatMajor < 4) {
d->formatMajor < 4Description
TRUEnever evaluated
FALSEnever evaluated
0
751 s >> p >> image;-
752 painter->drawImage(p, image);-
753 } else if (d->formatMajor <= 5){
never executed: end of block
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
754 s >> ir >> image;-
755 painter->drawImage(ir, image, QRect(0, 0, ir.width(), ir.height()));-
756 } else {
never executed: end of block
0
757 QRectF sr;-
758 if (d->in_memory_only) {
d->in_memory_onlyDescription
TRUEnever evaluated
FALSEnever evaluated
0
759 int index;-
760 s >> r >> index >> sr >> ul;-
761 Q_ASSERT(index < d->image_list.size());-
762 image = d->image_list.at(index);-
763 } else {
never executed: end of block
0
764 s >> r >> image >> sr >> ul;-
765 }
never executed: end of block
0
766 painter->drawImage(r, image, sr, Qt::ImageConversionFlags(ul));-
767 }
never executed: end of block
0
768 }-
769 break;
never executed: break;
0
770 case QPicturePrivate::PdcBegin:
never executed: case QPicturePrivate::PdcBegin:
0
771 s >> ul; // number of records-
772 if (!exec(painter, s, ul))
!exec(painter, s, ul)Description
TRUEnever evaluated
FALSEnever evaluated
0
773 return false;
never executed: return false;
0
774 break;
never executed: break;
0
775 case QPicturePrivate::PdcEnd:
never executed: case QPicturePrivate::PdcEnd:
0
776 if (nrecords == 0)
nrecords == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
777 return true;
never executed: return true;
0
778 break;
never executed: break;
0
779 case QPicturePrivate::PdcSave:
never executed: case QPicturePrivate::PdcSave:
0
780 painter->save();-
781 break;
never executed: break;
0
782 case QPicturePrivate::PdcRestore:
never executed: case QPicturePrivate::PdcRestore:
0
783 painter->restore();-
784 break;
never executed: break;
0
785 case QPicturePrivate::PdcSetBkColor:
never executed: case QPicturePrivate::PdcSetBkColor:
0
786 s >> color;-
787 painter->setBackground(color);-
788 break;
never executed: break;
0
789 case QPicturePrivate::PdcSetBkMode:
never executed: case QPicturePrivate::PdcSetBkMode:
0
790 s >> i_8;-
791 painter->setBackgroundMode((Qt::BGMode)i_8);-
792 break;
never executed: break;
0
793 case QPicturePrivate::PdcSetROP: // NOP
never executed: case QPicturePrivate::PdcSetROP:
0
794 s >> i_8;-
795 break;
never executed: break;
0
796 case QPicturePrivate::PdcSetBrushOrigin:
never executed: case QPicturePrivate::PdcSetBrushOrigin:
0
797 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
798 s >> ip;-
799 painter->setBrushOrigin(ip);-
800 } else {
never executed: end of block
0
801 s >> p;-
802 painter->setBrushOrigin(p);-
803 }
never executed: end of block
0
804 break;
never executed: break;
0
805 case QPicturePrivate::PdcSetFont:
never executed: case QPicturePrivate::PdcSetFont:
0
806 s >> font;-
807 painter->setFont(font);-
808 break;
never executed: break;
0
809 case QPicturePrivate::PdcSetPen:
never executed: case QPicturePrivate::PdcSetPen:
0
810 if (d->in_memory_only) {
d->in_memory_onlyDescription
TRUEnever evaluated
FALSEnever evaluated
0
811 int index;-
812 s >> index;-
813 Q_ASSERT(index < d->pen_list.size());-
814 pen = d->pen_list.at(index);-
815 } else {
never executed: end of block
0
816 s >> pen;-
817 }
never executed: end of block
0
818 painter->setPen(pen);-
819 break;
never executed: break;
0
820 case QPicturePrivate::PdcSetBrush:
never executed: case QPicturePrivate::PdcSetBrush:
0
821 if (d->in_memory_only) {
d->in_memory_onlyDescription
TRUEnever evaluated
FALSEnever evaluated
0
822 int index;-
823 s >> index;-
824 Q_ASSERT(index < d->brush_list.size());-
825 brush = d->brush_list.at(index);-
826 } else {
never executed: end of block
0
827 s >> brush;-
828 }
never executed: end of block
0
829 painter->setBrush(brush);-
830 break;
never executed: break;
0
831 case QPicturePrivate::PdcSetVXform:
never executed: case QPicturePrivate::PdcSetVXform:
0
832 s >> i_8;-
833 painter->setViewTransformEnabled(i_8);-
834 break;
never executed: break;
0
835 case QPicturePrivate::PdcSetWindow:
never executed: case QPicturePrivate::PdcSetWindow:
0
836 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
837 s >> ir;-
838 painter->setWindow(ir);-
839 } else {
never executed: end of block
0
840 s >> r;-
841 painter->setWindow(r.toRect());-
842 }
never executed: end of block
0
843 break;
never executed: break;
0
844 case QPicturePrivate::PdcSetViewport:
never executed: case QPicturePrivate::PdcSetViewport:
0
845 if (d->formatMajor <= 5) {
d->formatMajor <= 5Description
TRUEnever evaluated
FALSEnever evaluated
0
846 s >> ir;-
847 painter->setViewport(ir);-
848 } else {
never executed: end of block
0
849 s >> r;-
850 painter->setViewport(r.toRect());-
851 }
never executed: end of block
0
852 break;
never executed: break;
0
853 case QPicturePrivate::PdcSetWXform:
never executed: case QPicturePrivate::PdcSetWXform:
0
854 s >> i_8;-
855 painter->setMatrixEnabled(i_8);-
856 break;
never executed: break;
0
857 case QPicturePrivate::PdcSetWMatrix:
never executed: case QPicturePrivate::PdcSetWMatrix:
0
858 if (d->formatMajor >= 8) {
d->formatMajor >= 8Description
TRUEnever evaluated
FALSEnever evaluated
0
859 s >> matrix >> i_8;-
860 } else {
never executed: end of block
0
861 s >> wmatrix >> i_8;-
862 matrix = QTransform(wmatrix);-
863 }
never executed: end of block
0
864 // i_8 is always false due to updateXForm() in qpaintengine_pic.cpp-
865 painter->setTransform(matrix * worldMatrix, i_8);-
866 break;
never executed: break;
0
867 case QPicturePrivate::PdcSetClip:
never executed: case QPicturePrivate::PdcSetClip:
0
868 s >> i_8;-
869 painter->setClipping(i_8);-
870 break;
never executed: break;
0
871 case QPicturePrivate::PdcSetClipRegion:
never executed: case QPicturePrivate::PdcSetClipRegion:
0
872 s >> rgn >> i_8;-
873 if (d->formatMajor >= 9) {
d->formatMajor >= 9Description
TRUEnever evaluated
FALSEnever evaluated
0
874 painter->setClipRegion(rgn, Qt::ClipOperation(i_8));-
875 } else {
never executed: end of block
0
876 painter->setClipRegion(rgn);-
877 }
never executed: end of block
0
878 break;
never executed: break;
0
879 case QPicturePrivate::PdcSetClipPath:
never executed: case QPicturePrivate::PdcSetClipPath:
0
880 {-
881 QPainterPath path;-
882 s >> path >> i_8;-
883 painter->setClipPath(path, Qt::ClipOperation(i_8));-
884 break;
never executed: break;
0
885 }-
886 case QPicturePrivate::PdcSetRenderHint:
never executed: case QPicturePrivate::PdcSetRenderHint:
0
887 s >> ul;-
888 painter->setRenderHint(QPainter::Antialiasing,-
889 bool(ul & QPainter::Antialiasing));-
890 painter->setRenderHint(QPainter::SmoothPixmapTransform,-
891 bool(ul & QPainter::SmoothPixmapTransform));-
892 break;
never executed: break;
0
893 case QPicturePrivate::PdcSetCompositionMode:
never executed: case QPicturePrivate::PdcSetCompositionMode:
0
894 s >> ul;-
895 painter->setCompositionMode((QPainter::CompositionMode)ul);-
896 break;
never executed: break;
0
897 case QPicturePrivate::PdcSetClipEnabled:
never executed: case QPicturePrivate::PdcSetClipEnabled:
0
898 s >> bl;-
899 painter->setClipping(bl);-
900 break;
never executed: break;
0
901 case QPicturePrivate::PdcSetOpacity:
never executed: case QPicturePrivate::PdcSetOpacity:
0
902 s >> dbl;-
903 painter->setOpacity(qreal(dbl));-
904 break;
never executed: break;
0
905 default:
never executed: default:
0
906 qWarning("QPicture::play: Invalid command %d", c);-
907 if (len) // skip unknown command
lenDescription
TRUEnever evaluated
FALSEnever evaluated
0
908 s.device()->seek(s.device()->pos()+len);
never executed: s.device()->seek(s.device()->pos()+len);
0
909 }
never executed: end of block
0
910#if defined(QT_DEBUG)-
911 //qDebug("device->at(): %i, strm_pos: %i len: %i", (int)s.device()->pos(), strm_pos, len);-
912 Q_ASSERT(qint32(s.device()->pos() - strm_pos) == len);-
913#endif-
914 }
never executed: end of block
0
915 return false;
never executed: return false;
0
916}-
917-
918/*!-
919 \internal-
920-
921 Internal implementation of the virtual QPaintDevice::metric()-
922 function.-
923-
924 A picture has the following hard-coded values: numcolors=16777216-
925 and depth=24.-
926-
927 \a m is the metric to get.-
928*/-
929-
930int QPicture::metric(PaintDeviceMetric m) const-
931{-
932 int val;-
933 QRect brect = boundingRect();-
934 switch (m) {-
935 case PdmWidth:
never executed: case PdmWidth:
0
936 val = brect.width();-
937 break;
never executed: break;
0
938 case PdmHeight:
never executed: case PdmHeight:
0
939 val = brect.height();-
940 break;
never executed: break;
0
941 case PdmWidthMM:
never executed: case PdmWidthMM:
0
942 val = int(25.4/qt_defaultDpiX()*brect.width());-
943 break;
never executed: break;
0
944 case PdmHeightMM:
never executed: case PdmHeightMM:
0
945 val = int(25.4/qt_defaultDpiY()*brect.height());-
946 break;
never executed: break;
0
947 case PdmDpiX:
never executed: case PdmDpiX:
0
948 case PdmPhysicalDpiX:
never executed: case PdmPhysicalDpiX:
0
949 val = qt_defaultDpiX();-
950 break;
never executed: break;
0
951 case PdmDpiY:
never executed: case PdmDpiY:
0
952 case PdmPhysicalDpiY:
never executed: case PdmPhysicalDpiY:
0
953 val = qt_defaultDpiY();-
954 break;
never executed: break;
0
955 case PdmNumColors:
never executed: case PdmNumColors:
0
956 val = 16777216;-
957 break;
never executed: break;
0
958 case PdmDepth:
never executed: case PdmDepth:
0
959 val = 24;-
960 break;
never executed: break;
0
961 case PdmDevicePixelRatio:
never executed: case PdmDevicePixelRatio:
0
962 val = 1;-
963 break;
never executed: break;
0
964 case PdmDevicePixelRatioScaled:
never executed: case PdmDevicePixelRatioScaled:
0
965 val = 1 * QPaintDevice::devicePixelRatioFScale();-
966 break;
never executed: break;
0
967 default:
never executed: default:
0
968 val = 0;-
969 qWarning("QPicture::metric: Invalid metric command");-
970 }
never executed: end of block
0
971 return val;
never executed: return val;
0
972}-
973-
974/*!-
975 \fn void QPicture::detach()-
976 \internal-
977 Detaches from shared picture data and makes sure that this picture-
978 is the only one referring to the data.-
979-
980 If multiple pictures share common data, this picture makes a copy-
981 of the data and detaches itself from the sharing mechanism.-
982 Nothing is done if there is just a single reference.-
983*/-
984-
985/*! \fn bool QPicture::isDetached() const-
986\internal-
987*/-
988-
989/*!-
990 Assigns picture \a p to this picture and returns a reference to-
991 this picture.-
992*/-
993QPicture& QPicture::operator=(const QPicture &p)-
994{-
995 d_ptr = p.d_ptr;-
996 return *this;
never executed: return *this;
0
997}-
998-
999/*!-
1000 \fn void QPicture::swap(QPicture &other)-
1001 \since 4.8-
1002-
1003 Swaps picture \a other with this picture. This operation is very-
1004 fast and never fails.-
1005*/-
1006-
1007/*!-
1008 \internal-
1009-
1010 Constructs a QPicturePrivate-
1011*/-
1012QPicturePrivate::QPicturePrivate()-
1013 : in_memory_only(false)-
1014{-
1015}
never executed: end of block
0
1016-
1017/*!-
1018 \internal-
1019-
1020 Copy-Constructs a QPicturePrivate. Needed when detaching.-
1021*/-
1022QPicturePrivate::QPicturePrivate(const QPicturePrivate &other)-
1023 : trecs(other.trecs),-
1024 formatOk(other.formatOk),-
1025 formatMinor(other.formatMinor),-
1026 brect(other.brect),-
1027 override_rect(other.override_rect),-
1028 in_memory_only(false)-
1029{-
1030 pictb.setData(other.pictb.data(), other.pictb.size());-
1031 if (other.pictb.isOpen()) {
other.pictb.isOpen()Description
TRUEnever evaluated
FALSEnever evaluated
0
1032 pictb.open(other.pictb.openMode());-
1033 pictb.seek(other.pictb.pos());-
1034 }
never executed: end of block
0
1035}
never executed: end of block
0
1036-
1037/*!-
1038 \internal-
1039-
1040 Sets formatOk to false and resets the format version numbers to default-
1041*/-
1042-
1043void QPicturePrivate::resetFormat()-
1044{-
1045 formatOk = false;-
1046 formatMajor = mfhdr_maj;-
1047 formatMinor = mfhdr_min;-
1048}
never executed: end of block
0
1049-
1050-
1051/*!-
1052 \internal-
1053-
1054 Checks data integrity and format version number. Set formatOk to-
1055 true on success, to false otherwise. Returns the resulting formatOk-
1056 value.-
1057*/-
1058bool QPicturePrivate::checkFormat()-
1059{-
1060 resetFormat();-
1061-
1062 // can't check anything in an empty buffer-
1063 if (pictb.size() == 0 || pictb.isOpen())
pictb.size() == 0Description
TRUEnever evaluated
FALSEnever evaluated
pictb.isOpen()Description
TRUEnever evaluated
FALSEnever evaluated
0
1064 return false;
never executed: return false;
0
1065-
1066 pictb.open(QIODevice::ReadOnly); // open buffer device-
1067 QDataStream s;-
1068 s.setDevice(&pictb); // attach data stream to buffer-
1069-
1070 char mf_id[4]; // picture header tag-
1071 s.readRawData(mf_id, 4); // read actual tag-
1072 if (memcmp(mf_id, qt_mfhdr_tag, 4) != 0) { // wrong header id
memcmp(mf_id, ...r_tag, 4) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
1073 qWarning("QPicturePaintEngine::checkFormat: Incorrect header");-
1074 pictb.close();-
1075 return false;
never executed: return false;
0
1076 }-
1077-
1078 int cs_start = sizeof(quint32); // pos of checksum word-
1079 int data_start = cs_start + sizeof(quint16);-
1080 quint16 cs,ccs;-
1081 QByteArray buf = pictb.buffer(); // pointer to data-
1082-
1083 s >> cs; // read checksum-
1084 ccs = (quint16) qChecksum(buf.constData() + data_start, buf.size() - data_start);-
1085 if (ccs != cs) {
ccs != csDescription
TRUEnever evaluated
FALSEnever evaluated
0
1086 qWarning("QPicturePaintEngine::checkFormat: Invalid checksum %x, %x expected",-
1087 ccs, cs);-
1088 pictb.close();-
1089 return false;
never executed: return false;
0
1090 }-
1091-
1092 quint16 major, minor;-
1093 s >> major >> minor; // read version number-
1094 if (major > mfhdr_maj) { // new, incompatible version
major > mfhdr_majDescription
TRUEnever evaluated
FALSEnever evaluated
0
1095 qWarning("QPicturePaintEngine::checkFormat: Incompatible version %d.%d",-
1096 major, minor);-
1097 pictb.close();-
1098 return false;
never executed: return false;
0
1099 }-
1100 s.setVersion(major != 4 ? major : 3);-
1101-
1102 quint8 c, clen;-
1103 s >> c >> clen;-
1104 if (c == QPicturePrivate::PdcBegin) {
c == QPicturePrivate::PdcBeginDescription
TRUEnever evaluated
FALSEnever evaluated
0
1105 if (!(major >= 1 && major <= 3)) {
major >= 1Description
TRUEnever evaluated
FALSEnever evaluated
major <= 3Description
TRUEnever evaluated
FALSEnever evaluated
0
1106 qint32 l, t, w, h;-
1107 s >> l >> t >> w >> h;-
1108 brect = QRect(l, t, w, h);-
1109 }
never executed: end of block
0
1110 } else {
never executed: end of block
0
1111 qWarning("QPicturePaintEngine::checkFormat: Format error");-
1112 pictb.close();-
1113 return false;
never executed: return false;
0
1114 }-
1115 pictb.close();-
1116-
1117 formatOk = true; // picture seems to be ok-
1118 formatMajor = major;-
1119 formatMinor = minor;-
1120 return true;
never executed: return true;
0
1121}-
1122-
1123/*! \internal */-
1124QPaintEngine *QPicture::paintEngine() const-
1125{-
1126 if (!d_func()->paintEngine)
!d_func()->paintEngineDescription
TRUEnever evaluated
FALSEnever evaluated
0
1127 const_cast<QPicture*>(this)->d_func()->paintEngine.reset(new QPicturePaintEngine);
never executed: const_cast<QPicture*>(this)->d_func()->paintEngine.reset(new QPicturePaintEngine);
0
1128 return d_func()->paintEngine.data();
never executed: return d_func()->paintEngine.data();
0
1129}-
1130-
1131/*****************************************************************************-
1132 QPicture stream functions-
1133 *****************************************************************************/-
1134-
1135#ifndef QT_NO_DATASTREAM-
1136/*!-
1137 \relates QPicture-
1138-
1139 Writes picture \a r to the stream \a s and returns a reference to-
1140 the stream.-
1141*/-
1142-
1143QDataStream &operator<<(QDataStream &s, const QPicture &r)-
1144{-
1145 quint32 size = r.d_func()->pictb.buffer().size();-
1146 s << size;-
1147 // null picture ?-
1148 if (size == 0)
size == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
1149 return s;
never executed: return s;
0
1150 // just write the whole buffer to the stream-
1151 s.writeRawData (r.d_func()->pictb.buffer(), r.d_func()->pictb.buffer().size());-
1152 return s;
never executed: return s;
0
1153}-
1154-
1155/*!-
1156 \relates QPicture-
1157-
1158 Reads a picture from the stream \a s into picture \a r and returns-
1159 a reference to the stream.-
1160*/-
1161-
1162QDataStream &operator>>(QDataStream &s, QPicture &r)-
1163{-
1164 QDataStream sr;-
1165-
1166 // "init"; this code is similar to the beginning of QPicture::cmd()-
1167 sr.setDevice(&r.d_func()->pictb);-
1168 sr.setVersion(r.d_func()->formatMajor);-
1169 quint32 len;-
1170 s >> len;-
1171 QByteArray data;-
1172 if (len > 0) {
len > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
1173 data.resize(len);-
1174 s.readRawData(data.data(), len);-
1175 }
never executed: end of block
0
1176-
1177 r.d_func()->pictb.setData(data);-
1178 r.d_func()->resetFormat();-
1179 return s;
never executed: return s;
0
1180}-
1181#endif // QT_NO_DATASTREAM-
1182-
1183-
1184#ifndef QT_NO_PICTUREIO-
1185-
1186QT_BEGIN_INCLUDE_NAMESPACE-
1187#include "qregexp.h"-
1188#include "qpictureformatplugin.h"-
1189QT_END_INCLUDE_NAMESPACE-
1190-
1191/*!-
1192 \obsolete-
1193-
1194 Returns a string that specifies the picture format of the file \a-
1195 fileName, or 0 if the file cannot be read or if the format is not-
1196 recognized.-
1197-
1198 \sa load(), save()-
1199*/-
1200-
1201const char* QPicture::pictureFormat(const QString &fileName)-
1202{-
1203 return QPictureIO::pictureFormat(fileName);
never executed: return QPictureIO::pictureFormat(fileName);
0
1204}-
1205-
1206/*!-
1207 \obsolete-
1208-
1209 Returns a list of picture formats that are supported for picture-
1210 input.-
1211-
1212 \sa outputFormats(), inputFormatList(), QPictureIO-
1213*/-
1214QList<QByteArray> QPicture::inputFormats()-
1215{-
1216 return QPictureIO::inputFormats();
never executed: return QPictureIO::inputFormats();
0
1217}-
1218-
1219static QStringList qToStringList(const QList<QByteArray> &arr)-
1220{-
1221 QStringList list;-
1222 const int count = arr.count();-
1223 list.reserve(count);-
1224 for (int i = 0; i < count; ++i)
i < countDescription
TRUEnever evaluated
FALSEnever evaluated
0
1225 list.append(QString::fromLatin1(arr.at(i)));
never executed: list.append(QString::fromLatin1(arr.at(i)));
0
1226 return list;
never executed: return list;
0
1227}-
1228-
1229/*!-
1230 \obsolete-
1231-
1232 Returns a list of picture formats that are supported for picture-
1233 input.-
1234-
1235 Note that if you want to iterate over the list, you should iterate-
1236 over a copy, e.g.-
1237 \snippet picture/picture.cpp 2-
1238-
1239 \sa outputFormatList(), inputFormats(), QPictureIO-
1240*/-
1241QStringList QPicture::inputFormatList()-
1242{-
1243 return qToStringList(QPictureIO::inputFormats());
never executed: return qToStringList(QPictureIO::inputFormats());
0
1244}-
1245-
1246-
1247/*!-
1248 \obsolete-
1249-
1250 Returns a list of picture formats that are supported for picture-
1251 output.-
1252-
1253 Note that if you want to iterate over the list, you should iterate-
1254 over a copy, e.g.-
1255 \snippet picture/picture.cpp 3-
1256-
1257 \sa inputFormatList(), outputFormats(), QPictureIO-
1258*/-
1259QStringList QPicture::outputFormatList()-
1260{-
1261 return qToStringList(QPictureIO::outputFormats());
never executed: return qToStringList(QPictureIO::outputFormats());
0
1262}-
1263-
1264/*!-
1265 \obsolete-
1266-
1267 Returns a list of picture formats that are supported for picture-
1268 output.-
1269-
1270 \sa inputFormats(), outputFormatList(), QPictureIO-
1271*/-
1272QList<QByteArray> QPicture::outputFormats()-
1273{-
1274 return QPictureIO::outputFormats();
never executed: return QPictureIO::outputFormats();
0
1275}-
1276-
1277/*****************************************************************************-
1278 QPictureIO member functions-
1279 *****************************************************************************/-
1280-
1281/*!-
1282 \obsolete-
1283-
1284 \class QPictureIO-
1285-
1286 \brief The QPictureIO class contains parameters for loading and-
1287 saving pictures.-
1288-
1289 \ingroup painting-
1290 \ingroup io-
1291 \inmodule QtGui-
1292-
1293 QPictureIO contains a QIODevice object that is used for picture data-
1294 I/O. The programmer can install new picture file formats in addition-
1295 to those that Qt provides.-
1296-
1297 You don't normally need to use this class; QPicture::load(),-
1298 QPicture::save().-
1299-
1300 \sa QPicture, QPixmap, QFile-
1301*/-
1302-
1303struct QPictureIOData-
1304{-
1305 QPicture pi; // picture-
1306 int iostat; // IO status-
1307 QByteArray frmt; // picture format-
1308 QIODevice *iodev; // IO device-
1309 QString fname; // file name-
1310 QString descr; // picture description-
1311 const char *parameters;-
1312 int quality;-
1313 float gamma;-
1314};-
1315-
1316/*!-
1317 Constructs a QPictureIO object with all parameters set to zero.-
1318*/-
1319-
1320QPictureIO::QPictureIO()-
1321{-
1322 init();-
1323}
never executed: end of block
0
1324-
1325/*!-
1326 Constructs a QPictureIO object with the I/O device \a ioDevice and a-
1327 \a format tag.-
1328*/-
1329-
1330QPictureIO::QPictureIO(QIODevice *ioDevice, const char *format)-
1331{-
1332 init();-
1333 d->iodev = ioDevice;-
1334 d->frmt = format;-
1335}
never executed: end of block
0
1336-
1337/*!-
1338 Constructs a QPictureIO object with the file name \a fileName and a-
1339 \a format tag.-
1340*/-
1341-
1342QPictureIO::QPictureIO(const QString &fileName, const char* format)-
1343{-
1344 init();-
1345 d->frmt = format;-
1346 d->fname = fileName;-
1347}
never executed: end of block
0
1348-
1349/*!-
1350 Contains initialization common to all QPictureIO constructors.-
1351*/-
1352-
1353void QPictureIO::init()-
1354{-
1355 d = new QPictureIOData();-
1356 d->parameters = 0;-
1357 d->quality = -1; // default quality of the current format-
1358 d->gamma=0.0f;-
1359 d->iostat = 0;-
1360 d->iodev = 0;-
1361}
never executed: end of block
0
1362-
1363/*!-
1364 Destroys the object and all related data.-
1365*/-
1366-
1367QPictureIO::~QPictureIO()-
1368{-
1369 if (d->parameters)
d->parametersDescription
TRUEnever evaluated
FALSEnever evaluated
0
1370 delete [] d->parameters;
never executed: delete [] d->parameters;
0
1371 delete d;-
1372}
never executed: end of block
0
1373-
1374-
1375/*****************************************************************************-
1376 QPictureIO picture handler functions-
1377 *****************************************************************************/-
1378-
1379class QPictureHandler-
1380{-
1381public:-
1382 QPictureHandler(const char *f, const char *h, const QByteArray& fl,-
1383 picture_io_handler r, picture_io_handler w);-
1384 QByteArray format; // picture format-
1385 QRegExp header; // picture header pattern-
1386 enum TMode { Untranslated=0, TranslateIn, TranslateInOut } text_mode;-
1387 picture_io_handler read_picture; // picture read function-
1388 picture_io_handler write_picture; // picture write function-
1389 bool obsolete; // support not "published"-
1390};-
1391-
1392QPictureHandler::QPictureHandler(const char *f, const char *h, const QByteArray& fl,-
1393 picture_io_handler r, picture_io_handler w)-
1394 : format(f), header(QString::fromLatin1(h))-
1395{-
1396 text_mode = Untranslated;-
1397 if (fl.contains('t'))
fl.contains('t')Description
TRUEnever evaluated
FALSEnever evaluated
0
1398 text_mode = TranslateIn;
never executed: text_mode = TranslateIn;
0
1399 else if (fl.contains('T'))
fl.contains('T')Description
TRUEnever evaluated
FALSEnever evaluated
0
1400 text_mode = TranslateInOut;
never executed: text_mode = TranslateInOut;
0
1401 obsolete = fl.contains('O');-
1402 read_picture = r;-
1403 write_picture = w;-
1404}
never executed: end of block
0
1405-
1406typedef QList<QPictureHandler *> QPHList;-
1407Q_GLOBAL_STATIC(QPHList, pictureHandlers)
never executed: end of block
never executed: guard.store(QtGlobalStatic::Destroyed);
never executed: return &holder.value;
guard.load() =...c::InitializedDescription
TRUEnever evaluated
FALSEnever evaluated
0
1408-
1409void qt_init_picture_plugins()-
1410{-
1411#ifndef QT_NO_LIBRARY-
1412 typedef QMultiMap<int, QString> PluginKeyMap;-
1413 typedef PluginKeyMap::const_iterator PluginKeyMapConstIterator;-
1414-
1415 static QBasicMutex mutex;-
1416 QMutexLocker locker(&mutex);-
1417 static QFactoryLoader loader(QPictureFormatInterface_iid,-
1418 QStringLiteral("/pictureformats"));-
1419-
1420 const PluginKeyMap keyMap = loader.keyMap();-
1421 const PluginKeyMapConstIterator cend = keyMap.constEnd();-
1422 for (PluginKeyMapConstIterator it = keyMap.constBegin(); it != cend; ++it) {
it != cendDescription
TRUEnever evaluated
FALSEnever evaluated
0
1423 if (QPictureFormatPlugin *format = qobject_cast<QPictureFormatPlugin*>(loader.instance(it.key())))
QPictureFormat...nce(it.key()))Description
TRUEnever evaluated
FALSEnever evaluated
0
1424 format->installIOHandler(it.value());
never executed: format->installIOHandler(it.value());
0
1425 }
never executed: end of block
0
1426#endif-
1427}
never executed: end of block
0
1428-
1429static void cleanup()-
1430{-
1431 // make sure that picture handlers are delete before plugin manager-
1432 if (QPHList *list = pictureHandlers()) {
QPHList *list ...tureHandlers()Description
TRUEnever evaluated
FALSEnever evaluated
0
1433 qDeleteAll(*list);-
1434 list->clear();-
1435 }
never executed: end of block
0
1436}
never executed: end of block
0
1437-
1438void qt_init_picture_handlers() // initialize picture handlers-
1439{-
1440 static QBasicAtomicInt done = Q_BASIC_ATOMIC_INITIALIZER(0);-
1441 if (done.testAndSetRelaxed(0, 1)) {
done.testAndSetRelaxed(0, 1)Description
TRUEnever evaluated
FALSEnever evaluated
0
1442 qAddPostRoutine(cleanup);-
1443 }
never executed: end of block
0
1444}
never executed: end of block
0
1445-
1446static QPictureHandler *get_picture_handler(const char *format)-
1447{ // get pointer to handler-
1448 qt_init_picture_handlers();-
1449 qt_init_picture_plugins();-
1450 if (QPHList *list = pictureHandlers()) {
QPHList *list ...tureHandlers()Description
TRUEnever evaluated
FALSEnever evaluated
0
1451 for (int i = 0; i < list->size(); ++i) {
i < list->size()Description
TRUEnever evaluated
FALSEnever evaluated
0
1452 if (list->at(i)->format == format)
list->at(i)->format == formatDescription
TRUEnever evaluated
FALSEnever evaluated
0
1453 return list->at(i);
never executed: return list->at(i);
0
1454 }
never executed: end of block
0
1455 }
never executed: end of block
0
1456 return 0; // no such handler
never executed: return 0;
0
1457}-
1458-
1459-
1460/*!-
1461 Defines a picture I/O handler for the picture format called \a-
1462 format, which is recognized using the regular-
1463 expression defined in \a header, read using \a readPicture and-
1464 written using \a writePicture.-
1465-
1466 \a flags is a string of single-character flags for this format.-
1467 The only flag defined currently is T (upper case), so the only-
1468 legal value for \a flags are "T" and the empty string. The "T"-
1469 flag means that the picture file is a text file, and Qt should treat-
1470 all newline conventions as equivalent. (XPM files and some PPM-
1471 files are text files for example.)-
1472-
1473 \a format is used to select a handler to write a QPicture; \a header-
1474 is used to select a handler to read an picture file.-
1475-
1476 If \a readPicture is a null pointer, the QPictureIO will not be able-
1477 to read pictures in \a format. If \a writePicture is a null pointer,-
1478 the QPictureIO will not be able to write pictures in \a format. If-
1479 both are null, the QPictureIO object is valid but useless.-
1480-
1481 Example:-
1482 \snippet picture/picture.cpp 6-
1483 \codeline-
1484 \snippet picture/picture.cpp 7-
1485 \codeline-
1486 \snippet picture/picture.cpp 8-
1487-
1488 Before the regular expression test, all the 0 bytes in the file header are-
1489 converted to 1 bytes. This is done because when Qt was ASCII-based, QRegExp-
1490 could not handle 0 bytes in strings.-
1491-
1492 The regexp is only applied on the first 14 bytes of the file.-
1493-
1494 (Note that if one handlerIO supports writing a format and another-
1495 supports reading it, Qt supports both reading and writing. If two-
1496 handlers support the same operation, Qt chooses one arbitrarily.)-
1497*/-
1498-
1499void QPictureIO::defineIOHandler(const char *format,-
1500 const char *header,-
1501 const char *flags,-
1502 picture_io_handler readPicture,-
1503 picture_io_handler writePicture)-
1504{-
1505 qt_init_picture_handlers();-
1506 if (QPHList *list = pictureHandlers()) {
QPHList *list ...tureHandlers()Description
TRUEnever evaluated
FALSEnever evaluated
0
1507 QPictureHandler *p;-
1508 p = new QPictureHandler(format, header, QByteArray(flags), readPicture, writePicture);-
1509 list->prepend(p);-
1510 }
never executed: end of block
0
1511}
never executed: end of block
0
1512-
1513-
1514/*****************************************************************************-
1515 QPictureIO normal member functions-
1516 *****************************************************************************/-
1517-
1518/*!-
1519 Returns the picture currently set.-
1520-
1521 \sa setPicture()-
1522*/-
1523const
never executed: return d->pi;
 QPicture &QPictureIO::picture() const { return d->pi; }
never executed: return d->pi;
0
1524-
1525/*!-
1526 Returns the picture's IO status. A non-zero value indicates an-
1527 error, whereas 0 means that the IO operation was successful.-
1528-
1529 \sa setStatus()-
1530*/-
1531int QPictureIO::status() const { return d->iostat; }
never executed: return d->iostat;
0
1532-
1533/*!-
1534 Returns the picture format string or 0 if no format has been-
1535 explicitly set.-
1536*/-
1537const
never executed: return d->frmt;
 char *QPictureIO::format() const { return d->frmt; }
never executed: return d->frmt;
0
1538-
1539/*!-
1540 Returns the IO device currently set.-
1541-
1542 \sa setIODevice()-
1543*/-
1544QIODevice *QPictureIO::ioDevice() const { return d->iodev; }
never executed: return d->iodev;
0
1545-
1546/*!-
1547 Returns the file name currently set.-
1548-
1549 \sa setFileName()-
1550*/-
1551QString QPictureIO::fileName() const { return d->fname; }
never executed: return d->fname;
0
1552-
1553-
1554/*!-
1555 Returns the picture description string.-
1556-
1557 \sa setDescription()-
1558*/-
1559QString QPictureIO::description() const { return d->descr; }
never executed: return d->descr;
0
1560-
1561/*!-
1562 Sets the picture to \a picture.-
1563-
1564 \sa picture()-
1565*/-
1566void QPictureIO::setPicture(const QPicture &picture)-
1567{-
1568 d->pi = picture;-
1569}
never executed: end of block
0
1570-
1571/*!-
1572 Sets the picture IO status to \a status. A non-zero value indicates-
1573 an error, whereas 0 means that the IO operation was successful.-
1574-
1575 \sa status()-
1576*/-
1577void QPictureIO::setStatus(int status)-
1578{-
1579 d->iostat = status;-
1580}
never executed: end of block
0
1581-
1582/*!-
1583 Sets the picture format to \a format for the picture to be read or-
1584 written.-
1585-
1586 It is necessary to specify a format before writing an picture, but-
1587 it is not necessary to specify a format before reading an picture.-
1588-
1589 If no format has been set, Qt guesses the picture format before-
1590 reading it. If a format is set the picture will only be read if it-
1591 has that format.-
1592-
1593 \sa read(), write(), format()-
1594*/-
1595void QPictureIO::setFormat(const char *format)-
1596{-
1597 d->frmt = format;-
1598}
never executed: end of block
0
1599-
1600/*!-
1601 Sets the IO device to be used for reading or writing an picture.-
1602-
1603 Setting the IO device allows pictures to be read/written to any-
1604 block-oriented QIODevice.-
1605-
1606 If \a ioDevice is not null, this IO device will override file name-
1607 settings.-
1608-
1609 \sa setFileName()-
1610*/-
1611void QPictureIO::setIODevice(QIODevice *ioDevice)-
1612{-
1613 d->iodev = ioDevice;-
1614}
never executed: end of block
0
1615-
1616/*!-
1617 Sets the name of the file to read or write an picture from to \a-
1618 fileName.-
1619-
1620 \sa setIODevice()-
1621*/-
1622void QPictureIO::setFileName(const QString &fileName)-
1623{-
1624 d->fname = fileName;-
1625}
never executed: end of block
0
1626-
1627/*!-
1628 Returns the quality of the written picture, related to the-
1629 compression ratio.-
1630-
1631 \sa setQuality(), QPicture::save()-
1632*/-
1633int QPictureIO::quality() const-
1634{-
1635 return d->quality;
never executed: return d->quality;
0
1636}-
1637-
1638/*!-
1639 Sets the quality of the written picture to \a q, related to the-
1640 compression ratio.-
1641-
1642 \a q must be in the range -1..100. Specify 0 to obtain small-
1643 compressed files, 100 for large uncompressed files. (-1 signifies-
1644 the default compression.)-
1645-
1646 \sa quality(), QPicture::save()-
1647*/-
1648-
1649void QPictureIO::setQuality(int q)-
1650{-
1651 d->quality = q;-
1652}
never executed: end of block
0
1653-
1654/*!-
1655 Returns the picture's parameters string.-
1656-
1657 \sa setParameters()-
1658*/-
1659-
1660const char *QPictureIO::parameters() const-
1661{-
1662 return d->parameters;
never executed: return d->parameters;
0
1663}-
1664-
1665/*!-
1666 Sets the picture's parameter string to \a parameters. This is for-
1667 picture handlers that require special parameters.-
1668-
1669 Although the current picture formats supported by Qt ignore the-
1670 parameters string, it may be used in future extensions or by-
1671 contributions (for example, JPEG).-
1672-
1673 \sa parameters()-
1674*/-
1675-
1676void QPictureIO::setParameters(const char *parameters)-
1677{-
1678 if (d->parameters)
d->parametersDescription
TRUEnever evaluated
FALSEnever evaluated
0
1679 delete [] d->parameters;
never executed: delete [] d->parameters;
0
1680 d->parameters = qstrdup(parameters);-
1681}
never executed: end of block
0
1682-
1683/*!-
1684 Sets the gamma value at which the picture will be viewed to \a-
1685 gamma. If the picture format stores a gamma value for which the-
1686 picture is intended to be used, then this setting will be used to-
1687 modify the picture. Setting to 0.0 will disable gamma correction-
1688 (i.e. any specification in the file will be ignored).-
1689-
1690 The default value is 0.0.-
1691-
1692 \sa gamma()-
1693*/-
1694void QPictureIO::setGamma(float gamma)-
1695{-
1696 d->gamma=gamma;-
1697}
never executed: end of block
0
1698-
1699/*!-
1700 Returns the gamma value at which the picture will be viewed.-
1701-
1702 \sa setGamma()-
1703*/-
1704float QPictureIO::gamma() const-
1705{-
1706 return d->gamma;
never executed: return d->gamma;
0
1707}-
1708-
1709/*!-
1710 Sets the picture description string for picture handlers that support-
1711 picture descriptions to \a description.-
1712-
1713 Currently, no picture format supported by Qt uses the description-
1714 string.-
1715*/-
1716-
1717void QPictureIO::setDescription(const QString &description)-
1718{-
1719 d->descr = description;-
1720}
never executed: end of block
0
1721-
1722-
1723/*!-
1724 Returns a string that specifies the picture format of the file \a-
1725 fileName, or null if the file cannot be read or if the format is-
1726 not recognized.-
1727*/-
1728-
1729QByteArray QPictureIO::pictureFormat(const QString &fileName)-
1730{-
1731 QFile file(fileName);-
1732 QByteArray format;-
1733 if (!file.open(QIODevice::ReadOnly))
!file.open(QIO...ice::ReadOnly)Description
TRUEnever evaluated
FALSEnever evaluated
0
1734 return format;
never executed: return format;
0
1735 format = pictureFormat(&file);-
1736 file.close();-
1737 return format;
never executed: return format;
0
1738}-
1739-
1740/*!-
1741 \overload-
1742-
1743 Returns a string that specifies the picture format of the picture read-
1744 from IO device \a d, or 0 if the device cannot be read or if the-
1745 format is not recognized.-
1746-
1747 Make sure that \a d is at the right position in the device (for-
1748 example, at the beginning of the file).-
1749-
1750 \sa QIODevice::pos()-
1751*/-
1752-
1753QByteArray QPictureIO::pictureFormat(QIODevice *d)-
1754{-
1755 // if you change this change the documentation for defineIOHandler()-
1756 const int buflen = 14;-
1757-
1758 char buf[buflen];-
1759 char buf2[buflen];-
1760 qt_init_picture_handlers();-
1761 qt_init_picture_plugins();-
1762 int pos = d->pos(); // save position-
1763 int rdlen = d->read(buf, buflen); // read a few bytes-
1764-
1765 QByteArray format;-
1766 if (rdlen != buflen)
rdlen != buflenDescription
TRUEnever evaluated
FALSEnever evaluated
0
1767 return format;
never executed: return format;
0
1768-
1769 memcpy(buf2, buf, buflen);-
1770-
1771 for (int n = 0; n < rdlen; n++)
n < rdlenDescription
TRUEnever evaluated
FALSEnever evaluated
0
1772 if (buf[n] == '\0')
buf[n] == '\0'Description
TRUEnever evaluated
FALSEnever evaluated
0
1773 buf[n] = '\001';
never executed: buf[n] = '\001';
0
1774 if (rdlen > 0) {
rdlen > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
1775 buf[rdlen - 1] = '\0';-
1776 QString bufStr = QString::fromLatin1(buf);-
1777 if (QPHList *list = pictureHandlers()) {
QPHList *list ...tureHandlers()Description
TRUEnever evaluated
FALSEnever evaluated
0
1778 for (int i = 0; i < list->size(); ++i) {
i < list->size()Description
TRUEnever evaluated
FALSEnever evaluated
0
1779 if (list->at(i)->header.indexIn(bufStr) != -1) { // try match with headers
list->at(i)->h...(bufStr) != -1Description
TRUEnever evaluated
FALSEnever evaluated
0
1780 format = list->at(i)->format;-
1781 break;
never executed: break;
0
1782 }-
1783 }
never executed: end of block
0
1784 }
never executed: end of block
0
1785 }
never executed: end of block
0
1786 d->seek(pos); // restore position-
1787 return format;
never executed: return format;
0
1788}-
1789-
1790/*!-
1791 Returns a sorted list of picture formats that are supported for-
1792 picture input.-
1793*/-
1794QList<QByteArray> QPictureIO::inputFormats()-
1795{-
1796 QList<QByteArray> result;-
1797-
1798 qt_init_picture_handlers();-
1799 qt_init_picture_plugins();-
1800-
1801 if (QPHList *list = pictureHandlers()) {
QPHList *list ...tureHandlers()Description
TRUEnever evaluated
FALSEnever evaluated
0
1802 for (int i = 0; i < list->size(); ++i) {
i < list->size()Description
TRUEnever evaluated
FALSEnever evaluated
0
1803 QPictureHandler *p = list->at(i);-
1804 if (p->read_picture && !p->obsolete && !result.contains(p->format))
p->read_pictureDescription
TRUEnever evaluated
FALSEnever evaluated
!p->obsoleteDescription
TRUEnever evaluated
FALSEnever evaluated
!result.contains(p->format)Description
TRUEnever evaluated
FALSEnever evaluated
0
1805 result.append(p->format);
never executed: result.append(p->format);
0
1806 }
never executed: end of block
0
1807 }
never executed: end of block
0
1808 std::sort(result.begin(), result.end());-
1809-
1810 return result;
never executed: return result;
0
1811}-
1812-
1813/*!-
1814 Returns a sorted list of picture formats that are supported for-
1815 picture output.-
1816*/-
1817QList<QByteArray> QPictureIO::outputFormats()-
1818{-
1819 qt_init_picture_handlers();-
1820 qt_init_picture_plugins();-
1821-
1822 QList<QByteArray> result;-
1823 if (QPHList *list = pictureHandlers()) {
QPHList *list ...tureHandlers()Description
TRUEnever evaluated
FALSEnever evaluated
0
1824 for (int i = 0; i < list->size(); ++i) {
i < list->size()Description
TRUEnever evaluated
FALSEnever evaluated
0
1825 QPictureHandler *p = list->at(i);-
1826 if (p->write_picture && !p->obsolete && !result.contains(p->format))
p->write_pictureDescription
TRUEnever evaluated
FALSEnever evaluated
!p->obsoleteDescription
TRUEnever evaluated
FALSEnever evaluated
!result.contains(p->format)Description
TRUEnever evaluated
FALSEnever evaluated
0
1827 result.append(p->format);
never executed: result.append(p->format);
0
1828 }
never executed: end of block
0
1829 }
never executed: end of block
0
1830 return result;
never executed: return result;
0
1831}-
1832-
1833-
1834-
1835/*!-
1836 Reads an picture into memory and returns \c true if the picture was-
1837 successfully read; otherwise returns \c false.-
1838-
1839 Before reading an picture you must set an IO device or a file name.-
1840 If both an IO device and a file name have been set, the IO device-
1841 will be used.-
1842-
1843 Setting the picture file format string is optional.-
1844-
1845 Note that this function does \e not set the \l{format()}{format} used to read the picture. If you need that-
1846 information, use the pictureFormat() static functions.-
1847-
1848 Example:-
1849-
1850 \snippet picture/picture.cpp 4-
1851-
1852 \sa setIODevice(), setFileName(), setFormat(), write(), QPixmap::load()-
1853*/-
1854bool QPictureIO::read()-
1855{-
1856 QFile file;-
1857 const char *picture_format;-
1858 QPictureHandler *h;-
1859-
1860 if (d->iodev) { // read from io device
d->iodevDescription
TRUEnever evaluated
FALSEnever evaluated
0
1861 // ok, already open-
1862 } else if (!d->fname.isEmpty()) { // read from file
never executed: end of block
!d->fname.isEmpty()Description
TRUEnever evaluated
FALSEnever evaluated
0
1863 file.setFileName(d->fname);-
1864 if (!file.open(QIODevice::ReadOnly))
!file.open(QIO...ice::ReadOnly)Description
TRUEnever evaluated
FALSEnever evaluated
0
1865 return false; // cannot open file
never executed: return false;
0
1866 d->iodev = &file;-
1867 } else { // no file name or io device
never executed: end of block
0
1868 return false;
never executed: return false;
0
1869 }-
1870 if (d->frmt.isEmpty()) {
d->frmt.isEmpty()Description
TRUEnever evaluated
FALSEnever evaluated
0
1871 // Try to guess format-
1872 picture_format = pictureFormat(d->iodev); // get picture format-
1873 if (!picture_format) {
!picture_formatDescription
TRUEnever evaluated
FALSEnever evaluated
0
1874 if (file.isOpen()) { // unknown format
file.isOpen()Description
TRUEnever evaluated
FALSEnever evaluated
0
1875 file.close();-
1876 d->iodev = 0;-
1877 }
never executed: end of block
0
1878 return false;
never executed: return false;
0
1879 }-
1880 } else {
never executed: end of block
0
1881 picture_format = d->frmt;-
1882 }
never executed: end of block
0
1883-
1884 h = get_picture_handler(picture_format);-
1885 if (file.isOpen()) {
file.isOpen()Description
TRUEnever evaluated
FALSEnever evaluated
0
1886#if !defined(Q_OS_UNIX)-
1887 if (h && h->text_mode) { // reopen in translated mode-
1888 file.close();-
1889 file.open(QIODevice::ReadOnly | QIODevice::Text);-
1890 }-
1891 else-
1892#endif-
1893 file.seek(0); // position to start-
1894 }
never executed: end of block
0
1895 d->iostat = 1; // assume error-
1896-
1897 if (h && h->read_picture)
hDescription
TRUEnever evaluated
FALSEnever evaluated
h->read_pictureDescription
TRUEnever evaluated
FALSEnever evaluated
0
1898 (*h->read_picture)(this);
never executed: (*h->read_picture)(this);
0
1899-
1900 if (file.isOpen()) { // picture was read using file
file.isOpen()Description
TRUEnever evaluated
FALSEnever evaluated
0
1901 file.close();-
1902 d->iodev = 0;-
1903 }
never executed: end of block
0
1904 return d->iostat == 0; // picture successfully read?
never executed: return d->iostat == 0;
0
1905}-
1906-
1907-
1908/*!-
1909 Writes an picture to an IO device and returns \c true if the picture was-
1910 successfully written; otherwise returns \c false.-
1911-
1912 Before writing an picture you must set an IO device or a file name.-
1913 If both an IO device and a file name have been set, the IO device-
1914 will be used.-
1915-
1916 The picture will be written using the specified picture format.-
1917-
1918 Example:-
1919 \snippet picture/picture.cpp 5-
1920-
1921 \sa setIODevice(), setFileName(), setFormat(), read(), QPixmap::save()-
1922*/-
1923bool QPictureIO::write()-
1924{-
1925 if (d->frmt.isEmpty())
d->frmt.isEmpty()Description
TRUEnever evaluated
FALSEnever evaluated
0
1926 return false;
never executed: return false;
0
1927 QPictureHandler *h = get_picture_handler(d->frmt);-
1928 if (!h || !h->write_picture) {
!hDescription
TRUEnever evaluated
FALSEnever evaluated
!h->write_pictureDescription
TRUEnever evaluated
FALSEnever evaluated
0
1929 qWarning("QPictureIO::write: No such picture format handler: %s",-
1930 format());-
1931 return false;
never executed: return false;
0
1932 }-
1933 QFile file;-
1934 if (!d->iodev && !d->fname.isEmpty()) {
!d->iodevDescription
TRUEnever evaluated
FALSEnever evaluated
!d->fname.isEmpty()Description
TRUEnever evaluated
FALSEnever evaluated
0
1935 file.setFileName(d->fname);-
1936 bool translate = h->text_mode==QPictureHandler::TranslateInOut;-
1937 QIODevice::OpenMode fmode = translate ? QIODevice::WriteOnly | QIODevice::Text : QIODevice::OpenMode(QIODevice::WriteOnly);
translateDescription
TRUEnever evaluated
FALSEnever evaluated
0
1938 if (!file.open(fmode)) // couldn't create file
!file.open(fmode)Description
TRUEnever evaluated
FALSEnever evaluated
0
1939 return false;
never executed: return false;
0
1940 d->iodev = &file;-
1941 }
never executed: end of block
0
1942 d->iostat = 1;-
1943 (*h->write_picture)(this);-
1944 if (file.isOpen()) { // picture was written using file
file.isOpen()Description
TRUEnever evaluated
FALSEnever evaluated
0
1945 file.close();-
1946 d->iodev = 0;-
1947 }
never executed: end of block
0
1948 return d->iostat == 0; // picture successfully written?
never executed: return d->iostat == 0;
0
1949}-
1950#endif //QT_NO_PICTUREIO-
1951-
1952QT_END_NAMESPACE-
1953-
1954#endif // QT_NO_PICTURE-
1955-
1956/*!-
1957 \typedef QPicture::DataPtr-
1958 \internal-
1959*/-
1960-
1961/*!-
1962 \fn DataPtr &QPicture::data_ptr()-
1963 \internal-
1964*/-
Source codeSwitch to Preprocessed file
Generated by Squish Coco Non-Commercial 4.3.0-BETA-master-30-08-2018-4cb69e9