Qt 4.8: mediaplayer.h Example File (demos/qmediaplayer/mediaplayer.h)

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# mediaplayer.h Example File

demos/qmediaplayer/mediaplayer.h

     /****************************************************************************
     **
     ** Copyright (C) 2015 The Qt Company Ltd.
     ** Contact: http://www.qt.io/licensing/
     **
     ** This file is part of the demonstration applications of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
     ** Commercial License Usage
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     ** accordance with the commercial license agreement provided with the
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     **
     ** GNU Lesser General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU Lesser
     ** General Public License version 2.1 or version 3 as published by the Free
     ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
     ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
     ** following information to ensure the GNU Lesser General Public License
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     ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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     ** rights. These rights are described in The Qt Company LGPL Exception
     ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
     **
     ** GNU General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3.0 as published by the Free Software
     ** Foundation and appearing in the file LICENSE.GPL included in the
     ** packaging of this file.  Please review the following information to
     ** ensure the GNU General Public License version 3.0 requirements will be
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     **
     ** $QT_END_LICENSE$
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     ***************************************************************************/

     #ifndef MEDIALAYER_H
     #define MEDIAPLAYER_H

     #include <QtGui/QWidget>
     #include <QtGui/QApplication>
     #include <QtCore/QTimerEvent>
     #include <QtGui/QShowEvent>
     #include <QtGui/QIcon>
     #include <QtCore/QBasicTimer>
     #include <QtGui/QAction>

     #include <phonon/audiooutput.h>
     #include <phonon/backendcapabilities.h>
     #include <phonon/effect.h>
     #include <phonon/effectparameter.h>
     #include <phonon/effectwidget.h>
     #include <phonon/mediaobject.h>
     #include <phonon/seekslider.h>
     #include <phonon/videowidget.h>
     #include <phonon/volumeslider.h>

     class QPushButton;
     class QLabel;
     class QSlider;
     class QTextEdit;
     class QMenu;
     class Ui_settings;

     class MediaPlayer;

     class MediaVideoWidget : public Phonon::VideoWidget
     {
         Q_OBJECT

     public:
         MediaVideoWidget(MediaPlayer *player, QWidget *parent = 0);

     public slots:
         // Over-riding non-virtual Phonon::VideoWidget slot
         void setFullScreen(bool);

     signals:
         void fullScreenChanged(bool);

     protected:
         void mouseDoubleClickEvent(QMouseEvent *e);
         void keyPressEvent(QKeyEvent *e);
         bool event(QEvent *e);
         void timerEvent(QTimerEvent *e);
         void dropEvent(QDropEvent *e);
         void dragEnterEvent(QDragEnterEvent *e);

     private:
         MediaPlayer *m_player;
         QBasicTimer m_timer;
         QAction m_action;
     };

     class MediaPlayer :
                 public QWidget
     {
         Q_OBJECT
     public:
         MediaPlayer();

         void dragEnterEvent(QDragEnterEvent *e);
         void dragMoveEvent(QDragMoveEvent *e);
         void dropEvent(QDropEvent *e);
         void handleDrop(QDropEvent *e);
         void setFile(const QString &text);
         void setLocation(const QString &location);
         void initVideoWindow();
         void initSettingsDialog();
         void setVolume(qreal volume);
         void setSmallScreen(bool smallScreen);

     public slots:
         void openFile();
         void rewind();
         void forward();
         void updateInfo();
         void updateTime();
         void finished();
         void playPause();
         void scaleChanged(QAction *);
         void aspectChanged(QAction *);

     private slots:
         void setAspect(int);
         void setScale(int);
         void setSaturation(int);
         void setContrast(int);
         void setHue(int);
         void setBrightness(int);
         void stateChanged(Phonon::State newstate, Phonon::State oldstate);
         void effectChanged();
         void showSettingsDialog();
         void showContextMenu(const QPoint& point);
         void bufferStatus(int percent);
         void openUrl();
     #ifdef Q_OS_SYMBIAN
         void selectIAP();
     #endif
         void openRamFile();
         void configureEffect();
         void hasVideoChanged(bool);

     private:
         bool playPauseForDialog();
     #ifdef Q_OS_SYMBIAN
         void selectIAPL();
     #endif

         QIcon playIcon;
         QIcon pauseIcon;
         QMenu *fileMenu;
         QPushButton *playButton;
         QPushButton *rewindButton;
         QPushButton *forwardButton;
         Phonon::SeekSlider *slider;
         QLabel *timeLabel;
         QLabel *progressLabel;
         Phonon::VolumeSlider *volume;
         QSlider *m_hueSlider;
         QSlider *m_satSlider;
         QSlider *m_contSlider;
         QLabel *info;
         Phonon::Effect *nextEffect;
         QDialog *settingsDialog;
         Ui_settings *ui;
         QAction *m_fullScreenAction;

         QWidget m_videoWindow;
         Phonon::MediaObject m_MediaObject;
         Phonon::AudioOutput m_AudioOutput;
         MediaVideoWidget *m_videoWidget;
         Phonon::Path m_audioOutputPath;
         bool m_smallScreen;
     };

     #endif //MEDIAPLAYER_H