mirror of
https://bitbucket.org/smil3y/katie.git
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rework QMovie
it was even possible to change the format while the movie was in running state Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
parent
f8d9980906
commit
7a7c5ceec3
3 changed files with 86 additions and 618 deletions
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@ -42,19 +42,11 @@
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\snippet doc/src/snippets/code/src_gui_image_qmovie.cpp 0
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Whenever a new frame is available in the movie, QMovie will emit
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updated(). If the size of the frame changes, resized() is emitted. You can
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call currentImage() or currentPixmap() to get a copy of the current
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frame. When the movie is done, QMovie emits finished(). If any error
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occurs during playback (i.e, the image file is corrupt), QMovie will emit
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error().
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You can control the speed of the movie playback by calling setSpeed(),
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which takes the percentage of the original speed as an argument. Pause the
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movie by calling setPaused(true). QMovie will then enter \l Paused state
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and emit stateChanged(). If you call setPaused(false), QMovie will reenter
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\l Running state and start the movie again. To stop the movie, call
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stop().
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Whenever the frame changes, QMovie will emit frameChanged(). currentImage()
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can be used to get a copy of the current frame. When the movie is done,
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QMovie emits finished(). If any error occurs during playback (i.e, the image
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file is corrupt), QMovie will emit error(). When QMovie state changes, QMovie
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will emit stateChanged(). To stop the movie, call stop().
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Certain animation formats allow you to set the background color. You can
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call setBackgroundColor() to set the color, or backgroundColor() to
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@ -83,44 +75,15 @@
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state, and the state it enters after stop() has been called or the movie
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is finished.
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\value Paused The movie is paused, and QMovie stops emitting updated() or
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resized(). This state is entered after calling pause() or
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setPaused(true). The current frame number it kept, and the movie will
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continue with the next frame when unpause() or setPaused(false) is called.
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\value Running The movie is running.
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*/
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/*! \enum QMovie::CacheMode
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This enum describes the different cache modes of QMovie.
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\value CacheNone No frames are cached (the default).
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\value CacheAll All frames are cached.
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*/
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/*! \fn void QMovie::started()
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This signal is emitted after QMovie::start() has been called, and QMovie
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has entered QMovie::Running state.
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*/
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/*! \fn void QMovie::resized(const QSize &size)
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This signal is emitted when the current frame has been resized to \a
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size. This effect is sometimes used in animations as an alternative to
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replacing the frame. You can call currentImage() or currentPixmap() to get a
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copy of the updated frame.
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*/
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/*! \fn void QMovie::updated(const QRect &rect)
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This signal is emitted when the rect \a rect in the current frame has been
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updated. You can call currentImage() or currentPixmap() to get a copy of the
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updated frame.
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*/
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/*! \fn void QMovie::frameChanged(int frameNumber)
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\since 4.1
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@ -158,395 +121,95 @@
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#include "qmovie.h"
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#include "qimage.h"
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#include "qimagereader.h"
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#include "qpixmap.h"
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#include "qrect.h"
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#include "qelapsedtimer.h"
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#include "qtimer.h"
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#include "qpair.h"
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#include "qmap.h"
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#include "qcolor.h"
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#include "qlist.h"
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#include "qbuffer.h"
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#include "qdir.h"
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#include "qobject_p.h"
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#include "qdebug.h"
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#define QMOVIE_INVALID_DELAY -1
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QT_BEGIN_NAMESPACE
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class QFrameInfo
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{
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public:
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QPixmap pixmap;
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int delay;
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bool endMark;
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inline QFrameInfo(bool endMark)
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: pixmap(QPixmap()), delay(QMOVIE_INVALID_DELAY), endMark(endMark)
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{ }
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inline QFrameInfo()
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: pixmap(QPixmap()), delay(QMOVIE_INVALID_DELAY), endMark(false)
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{ }
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inline QFrameInfo(const QPixmap &pixmap, int delay)
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: pixmap(pixmap), delay(delay), endMark(false)
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{ }
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inline bool isValid()
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{
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return endMark || !(pixmap.isNull() && (delay == QMOVIE_INVALID_DELAY));
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}
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inline bool isEndMarker()
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{ return endMark; }
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static inline QFrameInfo endMarker()
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{ return QFrameInfo(true); }
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};
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class QMoviePrivate : public QObjectPrivate
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{
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Q_DECLARE_PUBLIC(QMovie)
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public:
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QMoviePrivate(QMovie *qq);
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bool isDone();
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bool next();
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int speedAdjustedDelay(int delay) const;
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bool isValid() const;
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bool jumpToFrame(int frameNumber);
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int frameCount() const;
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bool jumpToNextFrame();
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QFrameInfo infoForFrame(int frameNumber);
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void reset();
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inline void enterState(QMovie::MovieState newState) {
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movieState = newState;
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emit q_func()->stateChanged(newState);
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}
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// private slots
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void begin();
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void done();
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void readerError(const QImageReader::ImageReaderError error);
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void _q_loadNextFrame();
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void _q_loadNextFrame(bool starting);
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int loopCount;
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QImageReader *reader;
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int speed;
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QMovie::MovieState movieState;
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QRect frameRect;
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QPixmap currentPixmap;
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int currentFrameNumber;
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int nextFrameNumber;
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int greatestFrameNumber;
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int nextDelay;
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int playCounter;
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qint64 initialDevicePos;
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QMovie::CacheMode cacheMode;
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bool haveReadAll;
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bool isFirstIteration;
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QMap<int, QFrameInfo> frameMap;
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QString absoluteFilePath;
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QImage currentImage;
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QTimer nextImageTimer;
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};
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/*! \internal
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*/
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QMoviePrivate::QMoviePrivate(QMovie *qq)
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: reader(0), speed(100), movieState(QMovie::NotRunning),
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currentFrameNumber(-1), nextFrameNumber(0), greatestFrameNumber(-1),
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nextDelay(0), playCounter(-1),
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cacheMode(QMovie::CacheNone), haveReadAll(false), isFirstIteration(true)
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: loopCount(-1),
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reader(nullptr),
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movieState(QMovie::NotRunning)
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{
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q_ptr = qq;
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nextImageTimer.setSingleShot(true);
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}
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/*! \internal
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*/
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void QMoviePrivate::reset()
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{
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nextImageTimer.stop();
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if (reader->device())
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initialDevicePos = reader->device()->pos();
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currentFrameNumber = -1;
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nextFrameNumber = 0;
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greatestFrameNumber = -1;
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nextDelay = 0;
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playCounter = -1;
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haveReadAll = false;
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isFirstIteration = true;
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frameMap.clear();
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}
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/*! \internal
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*/
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bool QMoviePrivate::isDone()
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{
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return (playCounter == 0);
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}
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/*!
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\internal
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Given the original \a delay, this function returns the
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actual number of milliseconds to delay according to
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the current speed. E.g. if the speed is 200%, the
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result will be half of the original delay.
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*/
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int QMoviePrivate::speedAdjustedDelay(int delay) const
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{
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return int( (qint64(delay) * qint64(100) ) / qint64(speed) );
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}
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/*!
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\internal
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Returns the QFrameInfo for the given \a frameNumber.
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If the frame number is invalid, an invalid QFrameInfo is
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returned.
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If the end of the animation has been reached, a
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special end marker QFrameInfo is returned.
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*/
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QFrameInfo QMoviePrivate::infoForFrame(int frameNumber)
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{
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if (frameNumber < 0)
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return QFrameInfo(); // Invalid
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if (haveReadAll && (frameNumber > greatestFrameNumber)) {
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if (frameNumber == greatestFrameNumber+1)
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return QFrameInfo::endMarker();
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return QFrameInfo(); // Invalid
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}
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if (cacheMode == QMovie::CacheNone) {
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if (frameNumber != currentFrameNumber+1) {
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// Non-sequential frame access
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if (!reader->jumpToImage(frameNumber)) {
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if (frameNumber == 0) {
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// Special case: Attempt to "rewind" so we can loop
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// ### This could be implemented as QImageReader::rewind()
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if (reader->device()->isSequential())
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return QFrameInfo(); // Invalid
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QString fileName = reader->fileName();
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QByteArray format = reader->format();
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QIODevice *device = reader->device();
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QColor bgColor = reader->backgroundColor();
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QSize scaledSize = reader->scaledSize();
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delete reader;
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if (fileName.isEmpty())
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reader = new QImageReader(device, format);
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else
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reader = new QImageReader(absoluteFilePath, format);
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(void)reader->canRead(); // Provoke a device->open() call
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reader->device()->seek(initialDevicePos);
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reader->setBackgroundColor(bgColor);
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reader->setScaledSize(scaledSize);
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} else {
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return QFrameInfo(); // Invalid
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}
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}
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}
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if (reader->canRead()) {
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// reader says we can read. Attempt to actually read image
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QImage anImage = reader->read();
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if (anImage.isNull()) {
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// Reading image failed.
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return QFrameInfo(); // Invalid
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}
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if (frameNumber > greatestFrameNumber)
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greatestFrameNumber = frameNumber;
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QPixmap aPixmap = QPixmap::fromImage(anImage);
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int aDelay = reader->nextImageDelay();
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return QFrameInfo(aPixmap, aDelay);
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} else if (frameNumber != 0) {
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// We've read all frames now. Return an end marker
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haveReadAll = true;
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return QFrameInfo::endMarker();
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} else {
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// No readable frames
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haveReadAll = true;
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return QFrameInfo();
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}
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}
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// CacheMode == CacheAll
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if (frameNumber > greatestFrameNumber) {
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// Frame hasn't been read from file yet. Try to do it
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for (int i = greatestFrameNumber + 1; i <= frameNumber; ++i) {
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if (reader->canRead()) {
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// reader says we can read. Attempt to actually read image
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QImage anImage = reader->read();
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if (anImage.isNull()) {
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// Reading image failed.
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return QFrameInfo(); // Invalid
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}
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greatestFrameNumber = i;
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QPixmap aPixmap = QPixmap::fromImage(anImage);
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int aDelay = reader->nextImageDelay();
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QFrameInfo info(aPixmap, aDelay);
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// Cache it!
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frameMap.insert(i, info);
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if (i == frameNumber) {
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return info;
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}
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} else {
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// We've read all frames now. Return an end marker
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haveReadAll = true;
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return QFrameInfo::endMarker();
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}
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}
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}
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// Return info for requested (cached) frame
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return frameMap.value(frameNumber);
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}
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/*!
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\internal
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Attempts to advance the animation to the next frame.
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If successful, currentFrameNumber, currentPixmap and
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nextDelay are updated accordingly, and true is returned.
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Otherwise, false is returned.
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When false is returned, isDone() can be called to
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determine whether the animation ended gracefully or
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an error occurred when reading the frame.
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*/
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bool QMoviePrivate::next()
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{
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QElapsedTimer time;
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time.start();
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QFrameInfo info = infoForFrame(nextFrameNumber);
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if (!info.isValid())
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return false;
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if (info.isEndMarker()) {
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// We reached the end of the animation.
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if (isFirstIteration) {
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if (nextFrameNumber == 0) {
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// No frames could be read at all (error).
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return false;
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}
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// End of first iteration. Initialize play counter
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playCounter = reader->loopCount();
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isFirstIteration = false;
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}
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// Loop as appropriate
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if (playCounter != 0) {
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if (playCounter != -1) // Infinite?
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playCounter--; // Nope
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nextFrameNumber = 0;
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return next();
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}
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// Loop no more. Done
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return false;
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}
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// Image and delay OK, update internal state
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currentFrameNumber = nextFrameNumber++;
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QSize scaledSize = reader->scaledSize();
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if (scaledSize.isValid() && (scaledSize != info.pixmap.size()))
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currentPixmap = info.pixmap.scaled(scaledSize);
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else
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currentPixmap = info.pixmap;
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nextDelay = speedAdjustedDelay(info.delay);
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// Adjust delay according to the time it took to read the frame
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int processingTime = time.elapsed();
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if (processingTime > nextDelay)
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nextDelay = 0;
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else
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nextDelay = nextDelay - processingTime;
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return true;
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}
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/*! \internal
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*/
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void QMoviePrivate::_q_loadNextFrame()
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{
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_q_loadNextFrame(false);
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}
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void QMoviePrivate::_q_loadNextFrame(bool starting)
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void QMoviePrivate::begin()
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{
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Q_Q(QMovie);
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if (next()) {
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if (starting && movieState == QMovie::NotRunning) {
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enterState(QMovie::Running);
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emit q->started();
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}
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loopCount = reader->loopCount();
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_q_loadNextFrame();
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nextImageTimer.start();
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movieState = QMovie::Running;
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emit q->started();
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emit q->stateChanged(QMovie::Running);
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}
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if (frameRect.size() != currentPixmap.rect().size()) {
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frameRect = currentPixmap.rect();
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emit q->resized(frameRect.size());
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}
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void QMoviePrivate::done()
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{
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Q_Q(QMovie);
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nextImageTimer.stop();
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movieState = QMovie::NotRunning;
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emit q->finished();
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emit q->stateChanged(QMovie::NotRunning);
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}
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emit q->updated(frameRect);
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emit q->frameChanged(currentFrameNumber);
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void QMoviePrivate::readerError(const QImageReader::ImageReaderError error)
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{
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Q_Q(QMovie);
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done();
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emit q->error(reader->error());
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}
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if (movieState == QMovie::Running)
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nextImageTimer.start(nextDelay);
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} else {
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// Could not read another frame
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if (!isDone()) {
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emit q->error(reader->error());
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}
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// Graceful finish
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if (movieState != QMovie::Paused) {
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nextFrameNumber = 0;
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isFirstIteration = true;
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playCounter = -1;
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enterState(QMovie::NotRunning);
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emit q->finished();
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void QMoviePrivate::_q_loadNextFrame()
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{
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Q_Q(QMovie);
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if (!reader->read(¤tImage)) {
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currentImage = QImage();
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readerError(reader->error());
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return;
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}
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const int currentframe = reader->currentImageNumber();
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emit q->frameChanged(currentframe);
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nextImageTimer.setInterval(reader->nextImageDelay());
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if (currentframe >= reader->imageCount()) {
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loopCount++;
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if (loopCount == 0 || loopCount < reader->loopCount()) {
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// infinite loop or not done looping
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if (!reader->jumpToImage(0)) {
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readerError(reader->error());
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}
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} else {
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done();
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}
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}
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}
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/*!
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\internal
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*/
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bool QMoviePrivate::isValid() const
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{
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return (greatestFrameNumber >= 0) // have we seen valid data
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|| reader->canRead(); // or does the reader see valid data
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}
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/*!
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\internal
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*/
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bool QMoviePrivate::jumpToFrame(int frameNumber)
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{
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if (frameNumber < 0)
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return false;
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if (currentFrameNumber == frameNumber)
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return true;
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nextFrameNumber = frameNumber;
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if (movieState == QMovie::Running)
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nextImageTimer.stop();
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_q_loadNextFrame();
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return (nextFrameNumber == currentFrameNumber+1);
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}
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/*!
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\internal
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*/
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int QMoviePrivate::frameCount() const
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{
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int result;
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if ((result = reader->imageCount()) != 0)
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return result;
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if (haveReadAll)
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return greatestFrameNumber+1;
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return 0; // Don't know
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}
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/*!
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\internal
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*/
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bool QMoviePrivate::jumpToNextFrame()
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{
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return jumpToFrame(currentFrameNumber+1);
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}
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/*!
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Constructs a QMovie object, passing the \a parent object to QObject's
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constructor.
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|
@ -557,7 +220,7 @@ QMovie::QMovie(QObject *parent)
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: QObject(*new QMoviePrivate(this), parent)
|
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{
|
||||
Q_D(QMovie);
|
||||
d->reader = new QImageReader;
|
||||
d->reader = new QImageReader();
|
||||
connect(&d->nextImageTimer, SIGNAL(timeout()), this, SLOT(_q_loadNextFrame()));
|
||||
}
|
||||
|
||||
|
@ -574,7 +237,6 @@ QMovie::QMovie(QIODevice *device, const QByteArray &format, QObject *parent)
|
|||
{
|
||||
Q_D(QMovie);
|
||||
d->reader = new QImageReader(device, format);
|
||||
d->initialDevicePos = device->pos();
|
||||
connect(&d->nextImageTimer, SIGNAL(timeout()), this, SLOT(_q_loadNextFrame()));
|
||||
}
|
||||
|
||||
|
@ -590,10 +252,7 @@ QMovie::QMovie(const QString &fileName, const QByteArray &format, QObject *paren
|
|||
: QObject(*new QMoviePrivate(this), parent)
|
||||
{
|
||||
Q_D(QMovie);
|
||||
d->absoluteFilePath = QDir(fileName).absolutePath();
|
||||
d->reader = new QImageReader(fileName, format);
|
||||
if (d->reader->device())
|
||||
d->initialDevicePos = d->reader->device()->pos();
|
||||
connect(&d->nextImageTimer, SIGNAL(timeout()), this, SLOT(_q_loadNextFrame()));
|
||||
}
|
||||
|
||||
|
@ -615,8 +274,8 @@ QMovie::~QMovie()
|
|||
void QMovie::setDevice(QIODevice *device)
|
||||
{
|
||||
Q_D(QMovie);
|
||||
stop();
|
||||
d->reader->setDevice(device);
|
||||
d->reset();
|
||||
}
|
||||
|
||||
/*!
|
||||
|
@ -640,9 +299,8 @@ QIODevice *QMovie::device() const
|
|||
void QMovie::setFileName(const QString &fileName)
|
||||
{
|
||||
Q_D(QMovie);
|
||||
d->absoluteFilePath = QDir(fileName).absolutePath();
|
||||
stop();
|
||||
d->reader->setFileName(fileName);
|
||||
d->reset();
|
||||
}
|
||||
|
||||
/*!
|
||||
|
@ -671,6 +329,7 @@ QString QMovie::fileName() const
|
|||
void QMovie::setFormat(const QByteArray &format)
|
||||
{
|
||||
Q_D(QMovie);
|
||||
stop();
|
||||
d->reader->setFormat(format);
|
||||
}
|
||||
|
||||
|
@ -721,58 +380,13 @@ QMovie::MovieState QMovie::state() const
|
|||
return d->movieState;
|
||||
}
|
||||
|
||||
/*!
|
||||
Returns the rect of the last frame. If no frame has yet been updated, an
|
||||
invalid QRect is returned.
|
||||
|
||||
\sa currentImage(), currentPixmap()
|
||||
*/
|
||||
QRect QMovie::frameRect() const
|
||||
{
|
||||
Q_D(const QMovie);
|
||||
return d->frameRect;
|
||||
}
|
||||
|
||||
/*! \fn QImage QMovie::framePixmap() const
|
||||
|
||||
Use currentPixmap() instead.
|
||||
*/
|
||||
|
||||
/*! \fn void QMovie::pause()
|
||||
|
||||
Use setPaused(true) instead.
|
||||
*/
|
||||
|
||||
/*! \fn void QMovie::unpause()
|
||||
|
||||
Use setPaused(false) instead.
|
||||
*/
|
||||
|
||||
/*!
|
||||
Returns the current frame as a QPixmap.
|
||||
|
||||
\sa currentImage(), updated()
|
||||
*/
|
||||
QPixmap QMovie::currentPixmap() const
|
||||
{
|
||||
Q_D(const QMovie);
|
||||
return d->currentPixmap;
|
||||
}
|
||||
|
||||
/*! \fn QImage QMovie::frameImage() const
|
||||
|
||||
Use currentImage() instead.
|
||||
*/
|
||||
|
||||
/*!
|
||||
Returns the current frame as a QImage.
|
||||
|
||||
\sa currentPixmap(), updated()
|
||||
*/
|
||||
QImage QMovie::currentImage() const
|
||||
{
|
||||
Q_D(const QMovie);
|
||||
return d->currentPixmap.toImage();
|
||||
return d->currentImage;
|
||||
}
|
||||
|
||||
/*!
|
||||
|
@ -782,45 +396,9 @@ QImage QMovie::currentImage() const
|
|||
bool QMovie::isValid() const
|
||||
{
|
||||
Q_D(const QMovie);
|
||||
return d->isValid();
|
||||
return d->reader->canRead();
|
||||
}
|
||||
|
||||
/*! \fn bool QMovie::running() const
|
||||
|
||||
Use state() instead.
|
||||
*/
|
||||
|
||||
/*! \fn bool QMovie::isNull() const
|
||||
|
||||
Use isValid() instead.
|
||||
*/
|
||||
|
||||
/*! \fn int QMovie::frameNumber() const
|
||||
|
||||
Use currentFrameNumber() instead.
|
||||
*/
|
||||
|
||||
/*! \fn bool QMovie::paused() const
|
||||
|
||||
Use state() instead.
|
||||
*/
|
||||
|
||||
/*! \fn bool QMovie::finished() const
|
||||
|
||||
Use state() instead.
|
||||
*/
|
||||
|
||||
/*! \fn void QMovie::restart()
|
||||
|
||||
Use stop() and start() instead.
|
||||
*/
|
||||
|
||||
/*!
|
||||
\fn void QMovie::step()
|
||||
|
||||
Use jumpToNextFrame() instead.
|
||||
*/
|
||||
|
||||
/*!
|
||||
Returns the number of frames in the movie.
|
||||
|
||||
|
@ -830,7 +408,7 @@ bool QMovie::isValid() const
|
|||
int QMovie::frameCount() const
|
||||
{
|
||||
Q_D(const QMovie);
|
||||
return d->frameCount();
|
||||
return d->reader->imageCount();
|
||||
}
|
||||
|
||||
/*!
|
||||
|
@ -840,7 +418,7 @@ int QMovie::frameCount() const
|
|||
int QMovie::nextFrameDelay() const
|
||||
{
|
||||
Q_D(const QMovie);
|
||||
return d->nextDelay;
|
||||
return d->reader->nextImageDelay();
|
||||
}
|
||||
|
||||
/*!
|
||||
|
@ -850,7 +428,7 @@ int QMovie::nextFrameDelay() const
|
|||
int QMovie::currentFrameNumber() const
|
||||
{
|
||||
Q_D(const QMovie);
|
||||
return d->currentFrameNumber;
|
||||
return d->reader->currentImageNumber();
|
||||
}
|
||||
|
||||
/*!
|
||||
|
@ -859,17 +437,7 @@ int QMovie::currentFrameNumber() const
|
|||
bool QMovie::jumpToNextFrame()
|
||||
{
|
||||
Q_D(QMovie);
|
||||
return d->jumpToNextFrame();
|
||||
}
|
||||
|
||||
/*!
|
||||
Jumps to frame number \a frameNumber. Returns true on success; otherwise
|
||||
returns false.
|
||||
*/
|
||||
bool QMovie::jumpToFrame(int frameNumber)
|
||||
{
|
||||
Q_D(QMovie);
|
||||
return d->jumpToFrame(frameNumber);
|
||||
return d->reader->jumpToNextImage();
|
||||
}
|
||||
|
||||
/*!
|
||||
|
@ -887,69 +455,21 @@ int QMovie::loopCount() const
|
|||
return d->reader->loopCount();
|
||||
}
|
||||
|
||||
/*!
|
||||
If \a paused is true, QMovie will enter \l Paused state and emit
|
||||
stateChanged(Paused); otherwise it will enter \l Running state and emit
|
||||
stateChanged(Running).
|
||||
|
||||
\sa state()
|
||||
*/
|
||||
void QMovie::setPaused(bool paused)
|
||||
{
|
||||
Q_D(QMovie);
|
||||
if (paused) {
|
||||
if (d->movieState == NotRunning)
|
||||
return;
|
||||
d->enterState(Paused);
|
||||
d->nextImageTimer.stop();
|
||||
} else {
|
||||
if (d->movieState == Running)
|
||||
return;
|
||||
d->enterState(Running);
|
||||
d->nextImageTimer.start(nextFrameDelay());
|
||||
}
|
||||
}
|
||||
|
||||
/*!
|
||||
\property QMovie::speed
|
||||
\brief the movie's speed
|
||||
|
||||
The speed is measured in percentage of the original movie speed.
|
||||
The default speed is 100%.
|
||||
Example:
|
||||
|
||||
\snippet doc/src/snippets/code/src_gui_image_qmovie.cpp 1
|
||||
*/
|
||||
void QMovie::setSpeed(int percentSpeed)
|
||||
{
|
||||
Q_D(QMovie);
|
||||
d->speed = percentSpeed;
|
||||
}
|
||||
|
||||
int QMovie::speed() const
|
||||
{
|
||||
Q_D(const QMovie);
|
||||
return d->speed;
|
||||
}
|
||||
|
||||
/*!
|
||||
Starts the movie. QMovie will enter \l Running state, and start emitting
|
||||
updated() and resized() as the movie progresses.
|
||||
|
||||
If QMovie is in the \l Paused state, this function is equivalent
|
||||
to calling setPaused(false). If QMovie is already in the \l
|
||||
Running state, this function does nothing.
|
||||
If QMovie is already in the \l Running state, this function does nothing.
|
||||
|
||||
\sa stop(), setPaused()
|
||||
\sa stop()
|
||||
*/
|
||||
void QMovie::start()
|
||||
{
|
||||
Q_D(QMovie);
|
||||
if (d->movieState == NotRunning) {
|
||||
d->_q_loadNextFrame(true);
|
||||
} else if (d->movieState == Paused) {
|
||||
setPaused(false);
|
||||
if (d->movieState == QMovie::Running) {
|
||||
return;
|
||||
}
|
||||
d->begin();
|
||||
}
|
||||
|
||||
/*!
|
||||
|
@ -960,16 +480,15 @@ void QMovie::start()
|
|||
If QMovie is already in the \l NotRunning state, this function
|
||||
does nothing.
|
||||
|
||||
\sa start(), setPaused()
|
||||
\sa start()
|
||||
*/
|
||||
void QMovie::stop()
|
||||
{
|
||||
Q_D(QMovie);
|
||||
if (d->movieState == NotRunning)
|
||||
if (d->movieState == QMovie::NotRunning) {
|
||||
return;
|
||||
d->enterState(NotRunning);
|
||||
d->nextImageTimer.stop();
|
||||
d->nextFrameNumber = 0;
|
||||
}
|
||||
d->done();
|
||||
}
|
||||
|
||||
/*!
|
||||
|
@ -1019,39 +538,6 @@ QList<QByteArray> QMovie::supportedFormats()
|
|||
return list;
|
||||
}
|
||||
|
||||
/*!
|
||||
\property QMovie::cacheMode
|
||||
\brief the movie's cache mode
|
||||
|
||||
Caching frames can be useful when the underlying animation format handler
|
||||
that QMovie relies on to decode the animation data does not support
|
||||
jumping to particular frames in the animation, or even "rewinding" the
|
||||
animation to the beginning (for looping). Furthermore, if the image data
|
||||
comes from a sequential device, it is not possible for the underlying
|
||||
animation handler to seek back to frames whose data has already been read
|
||||
(making looping altogether impossible).
|
||||
|
||||
To aid in such situations, a QMovie object can be instructed to cache the
|
||||
frames, at the added memory cost of keeping the frames in memory for the
|
||||
lifetime of the object.
|
||||
|
||||
By default, this property is set to \l CacheNone.
|
||||
|
||||
\sa QMovie::CacheMode
|
||||
*/
|
||||
|
||||
QMovie::CacheMode QMovie::cacheMode() const
|
||||
{
|
||||
Q_D(const QMovie);
|
||||
return d->cacheMode;
|
||||
}
|
||||
|
||||
void QMovie::setCacheMode(CacheMode cacheMode)
|
||||
{
|
||||
Q_D(QMovie);
|
||||
d->cacheMode = cacheMode;
|
||||
}
|
||||
|
||||
QT_END_NAMESPACE
|
||||
|
||||
|
||||
|
|
|
@ -43,23 +43,17 @@ class QRect;
|
|||
class QSize;
|
||||
|
||||
class QMoviePrivate;
|
||||
|
||||
class Q_GUI_EXPORT QMovie : public QObject
|
||||
{
|
||||
Q_OBJECT
|
||||
Q_DECLARE_PRIVATE(QMovie)
|
||||
Q_ENUMS(MovieState CacheMode)
|
||||
Q_PROPERTY(int speed READ speed WRITE setSpeed)
|
||||
Q_PROPERTY(CacheMode cacheMode READ cacheMode WRITE setCacheMode)
|
||||
Q_ENUMS(MovieState)
|
||||
public:
|
||||
enum MovieState {
|
||||
NotRunning,
|
||||
Paused,
|
||||
Running
|
||||
};
|
||||
enum CacheMode {
|
||||
CacheNone,
|
||||
CacheAll
|
||||
};
|
||||
|
||||
QMovie(QObject *parent = nullptr);
|
||||
explicit QMovie(QIODevice *device, const QByteArray &format = QByteArray(), QObject *parent = nullptr);
|
||||
|
@ -82,30 +76,20 @@ public:
|
|||
|
||||
MovieState state() const;
|
||||
|
||||
QRect frameRect() const;
|
||||
QImage currentImage() const;
|
||||
QPixmap currentPixmap() const;
|
||||
|
||||
bool isValid() const;
|
||||
|
||||
bool jumpToFrame(int frameNumber);
|
||||
int loopCount() const;
|
||||
int frameCount() const;
|
||||
int nextFrameDelay() const;
|
||||
int currentFrameNumber() const;
|
||||
|
||||
int speed() const;
|
||||
|
||||
QSize scaledSize() const;
|
||||
void setScaledSize(const QSize &size);
|
||||
|
||||
CacheMode cacheMode() const;
|
||||
void setCacheMode(CacheMode mode);
|
||||
|
||||
Q_SIGNALS:
|
||||
void started();
|
||||
void resized(const QSize &size);
|
||||
void updated(const QRect &rect);
|
||||
void stateChanged(QMovie::MovieState state);
|
||||
void error(QImageReader::ImageReaderError error);
|
||||
void finished();
|
||||
|
@ -114,19 +98,15 @@ Q_SIGNALS:
|
|||
public Q_SLOTS:
|
||||
void start();
|
||||
bool jumpToNextFrame();
|
||||
void setPaused(bool paused);
|
||||
void stop();
|
||||
void setSpeed(int percentSpeed);
|
||||
|
||||
private:
|
||||
Q_DISABLE_COPY(QMovie)
|
||||
Q_PRIVATE_SLOT(d_func(), void _q_loadNextFrame())
|
||||
|
||||
};
|
||||
|
||||
QT_END_NAMESPACE
|
||||
|
||||
|
||||
#endif // QT_NO_MOVIE
|
||||
|
||||
#endif // QMOVIE_H
|
||||
|
|
|
@ -491,8 +491,8 @@ QSize QLabelPrivate::sizeForWidth(int w) const
|
|||
if (pixmap && !pixmap->isNull())
|
||||
br = pixmap->rect();
|
||||
#ifndef QT_NO_MOVIE
|
||||
else if (movie && !movie->currentPixmap().isNull())
|
||||
br = movie->currentPixmap().rect();
|
||||
else if (movie && !movie->currentImage().isNull())
|
||||
br = movie->currentImage().rect();
|
||||
#endif
|
||||
else if (isTextLabel) {
|
||||
int align = QStyle::visualAlignment(textDirection(), QFlag(this->align));
|
||||
|
@ -920,10 +920,11 @@ void QLabel::paintEvent(QPaintEvent *ev)
|
|||
|
||||
#ifndef QT_NO_MOVIE
|
||||
if (d->movie) {
|
||||
QPixmap pixmap = QPixmap::fromImage(d->movie->currentImage());
|
||||
if (d->scaledcontents)
|
||||
style->drawItemPixmap(&painter, cr, align, d->movie->currentPixmap().scaled(cr.size()));
|
||||
style->drawItemPixmap(&painter, cr, align, pixmap.scaled(cr.size()));
|
||||
else
|
||||
style->drawItemPixmap(&painter, cr, align, d->movie->currentPixmap());
|
||||
style->drawItemPixmap(&painter, cr, align, pixmap);
|
||||
}
|
||||
else
|
||||
#endif
|
||||
|
@ -1107,16 +1108,17 @@ void QLabelPrivate::_q_movieUpdated(const QRect& rect)
|
|||
Q_Q(QLabel);
|
||||
if (movie && movie->isValid()) {
|
||||
QRect r;
|
||||
QPixmap pixmap = QPixmap::fromImage(movie->currentImage());
|
||||
if (scaledcontents) {
|
||||
QRect cr = q->contentsRect();
|
||||
QRect pixmapRect(cr.topLeft(), movie->currentPixmap().size());
|
||||
QRect pixmapRect(cr.topLeft(), pixmap.size());
|
||||
if (pixmapRect.isEmpty())
|
||||
return;
|
||||
r.setRect(cr.left(), cr.top(),
|
||||
(rect.width() * cr.width()) / pixmapRect.width(),
|
||||
(rect.height() * cr.height()) / pixmapRect.height());
|
||||
} else {
|
||||
r = q->style()->itemPixmapRect(q->contentsRect(), align, movie->currentPixmap());
|
||||
r = q->style()->itemPixmapRect(q->contentsRect(), align, pixmap);
|
||||
r.translate(rect.x(), rect.y());
|
||||
r.setWidth(qMin(r.width(), rect.width()));
|
||||
r.setHeight(qMin(r.height(), rect.height()));
|
||||
|
|
Loading…
Add table
Reference in a new issue