qmovie.h

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00001 /****************************************************************************
00002 **
00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
00004 ** All rights reserved.
00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
00006 **
00007 ** This file is part of the QtGui module of the Qt Toolkit.
00008 **
00009 ** $QT_BEGIN_LICENSE:LGPL$
00010 ** Commercial Usage
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00012 ** accordance with the Qt Commercial License Agreement provided with the
00013 ** Software or, alternatively, in accordance with the terms contained in
00014 ** a written agreement between you and Nokia.
00015 **
00016 ** GNU Lesser General Public License Usage
00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
00018 ** General Public License version 2.1 as published by the Free Software
00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
00020 ** packaging of this file.  Please review the following information to
00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
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00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
00027 **
00028 ** GNU General Public License Usage
00029 ** Alternatively, this file may be used under the terms of the GNU
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00041 
00042 #ifndef QMOVIE_H
00043 #define QMOVIE_H
00044 
00045 #include <QtCore/qobject.h>
00046 
00047 #ifndef QT_NO_MOVIE
00048 
00049 #include <QtCore/qbytearray.h>
00050 #include <QtCore/qlist.h>
00051 #include <QtCore/qobject.h>
00052 #include <QtGui/qimagereader.h>
00053 
00054 #ifdef QT3_SUPPORT
00055 #include <QtGui/qimage.h>
00056 #include <QtGui/qpixmap.h>
00057 #endif
00058 
00059 QT_BEGIN_HEADER
00060 
00061 QT_BEGIN_NAMESPACE
00062 
00063 QT_MODULE(Gui)
00064 
00065 class QByteArray;
00066 class QColor;
00067 class QIODevice;
00068 class QImage;
00069 class QPixmap;
00070 class QRect;
00071 class QSize;
00072 
00073 class QMoviePrivate;
00074 class Q_GUI_EXPORT QMovie : public QObject
00075 {
00076     Q_OBJECT
00077     Q_DECLARE_PRIVATE(QMovie)
00078     Q_ENUMS(MovieState CacheMode)
00079     Q_PROPERTY(int speed READ speed WRITE setSpeed)
00080     Q_PROPERTY(CacheMode cacheMode READ cacheMode WRITE setCacheMode)
00081 public:
00082     enum MovieState {
00083         NotRunning,
00084         Paused,
00085         Running
00086     };
00087     enum CacheMode {
00088         CacheNone,
00089         CacheAll
00090     };
00091 
00092     QMovie(QObject *parent = 0);
00093     explicit QMovie(QIODevice *device, const QByteArray &format = QByteArray(), QObject *parent = 0);
00094     explicit QMovie(const QString &fileName, const QByteArray &format = QByteArray(), QObject *parent = 0);
00095     ~QMovie();
00096 
00097     static QList<QByteArray> supportedFormats();
00098 
00099     void setDevice(QIODevice *device);
00100     QIODevice *device() const;
00101 
00102     void setFileName(const QString &fileName);
00103     QString fileName() const;
00104 
00105     void setFormat(const QByteArray &format);
00106     QByteArray format() const;
00107 
00108     void setBackgroundColor(const QColor &color);
00109     QColor backgroundColor() const;
00110 
00111     MovieState state() const;
00112 
00113     QRect frameRect() const;
00114     QImage currentImage() const;
00115     QPixmap currentPixmap() const;
00116 
00117     bool isValid() const;
00118 
00119     bool jumpToFrame(int frameNumber);
00120     int loopCount() const;
00121     int frameCount() const;
00122     int nextFrameDelay() const;
00123     int currentFrameNumber() const;
00124 
00125     int speed() const;
00126 
00127     QSize scaledSize();
00128     void setScaledSize(const QSize &size);
00129 
00130     CacheMode cacheMode() const;
00131     void setCacheMode(CacheMode mode);
00132 
00133     CacheMode cacheMode(); // ### Qt 5: remove me
00134 
00135 Q_SIGNALS:
00136     void started();
00137     void resized(const QSize &size);
00138     void updated(const QRect &rect);
00139     void stateChanged(QMovie::MovieState state);
00140     void error(QImageReader::ImageReaderError error);
00141     void finished();
00142     void frameChanged(int frameNumber);
00143 
00144 public Q_SLOTS:
00145     void start();
00146     bool jumpToNextFrame();
00147     void setPaused(bool paused);
00148     void stop();
00149     void setSpeed(int percentSpeed);
00150 
00151 private:
00152     Q_DISABLE_COPY(QMovie)
00153     Q_PRIVATE_SLOT(d_func(), void _q_loadNextFrame())
00154 
00155 #ifdef QT3_SUPPORT
00156 public:
00157     inline QT3_SUPPORT bool isNull() const { return isValid(); }
00158     inline QT3_SUPPORT int frameNumber() const { return currentFrameNumber(); }
00159     inline QT3_SUPPORT bool running() const { return state() == Running; }
00160     inline QT3_SUPPORT bool paused() const { return state() == Paused; }
00161     inline QT3_SUPPORT bool finished() const { return state() == NotRunning; }
00162     inline QT3_SUPPORT void restart() { stop(); start(); }
00163     inline QT3_SUPPORT QImage frameImage() const { return currentImage(); }
00164     inline QT3_SUPPORT QPixmap framePixmap() const { return currentPixmap(); }
00165     inline QT3_SUPPORT void step() { jumpToNextFrame(); }
00166     inline QT3_SUPPORT void pause() { setPaused(true); }
00167     inline QT3_SUPPORT void unpause() { setPaused(false); }
00168 #endif
00169 };
00170 
00171 QT_END_NAMESPACE
00172 
00173 QT_END_HEADER
00174 
00175 #endif // QT_NO_MOVIE
00176 
00177 #endif // QMOVIE_H