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Diffstat (limited to 'examples/videographicsitem/videoplayer.cpp')
| -rw-r--r-- | examples/videographicsitem/videoplayer.cpp | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/examples/videographicsitem/videoplayer.cpp b/examples/videographicsitem/videoplayer.cpp new file mode 100644 index 000000000..48df7f36b --- /dev/null +++ b/examples/videographicsitem/videoplayer.cpp @@ -0,0 +1,174 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "videoplayer.h" +#include "videoitem.h" + +#include <QtGui> +#include <qvideosurfaceformat.h> + +#if !defined(QT_NO_OPENGL) && !defined(Q_OS_SYMBIAN) +# include <QtOpenGL/QGLWidget> +#endif + +VideoPlayer::VideoPlayer(QWidget *parent, Qt::WindowFlags flags) + : QWidget(parent, flags) + , mediaPlayer(0, QMediaPlayer::VideoSurface) + , videoItem(0) + , playButton(0) + , positionSlider(0) +{ + videoItem = new VideoItem; + + QGraphicsScene *scene = new QGraphicsScene(this); + QGraphicsView *graphicsView = new QGraphicsView(scene); + +#if !defined(QT_NO_OPENGL) && !defined(Q_OS_SYMBIAN) + graphicsView->setViewport(new QGLWidget); +#endif + + scene->addItem(videoItem); + + QSlider *rotateSlider = new QSlider(Qt::Horizontal); + rotateSlider->setRange(-180, 180); + rotateSlider->setValue(0); + + connect(rotateSlider, SIGNAL(valueChanged(int)), + this, SLOT(rotateVideo(int))); + + QAbstractButton *openButton = new QPushButton(tr("Open...")); + connect(openButton, SIGNAL(clicked()), this, SLOT(openFile())); + + playButton = new QPushButton; + playButton->setEnabled(false); + playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); + + connect(playButton, SIGNAL(clicked()), + this, SLOT(play())); + + positionSlider = new QSlider(Qt::Horizontal); + positionSlider->setRange(0, 0); + + connect(positionSlider, SIGNAL(sliderMoved(int)), + this, SLOT(setPosition(int))); + + QBoxLayout *controlLayout = new QHBoxLayout; + controlLayout->setMargin(0); + controlLayout->addWidget(openButton); + controlLayout->addWidget(playButton); + controlLayout->addWidget(positionSlider); + + QBoxLayout *layout = new QVBoxLayout; + layout->addWidget(graphicsView); + layout->addWidget(rotateSlider); + layout->addLayout(controlLayout); + + setLayout(layout); + + mediaPlayer.setVideoOutput(videoItem); + connect(&mediaPlayer, SIGNAL(stateChanged(QMediaPlayer::State)), + this, SLOT(mediaStateChanged(QMediaPlayer::State))); + connect(&mediaPlayer, SIGNAL(positionChanged(qint64)), this, SLOT(positionChanged(qint64))); + connect(&mediaPlayer, SIGNAL(durationChanged(qint64)), this, SLOT(durationChanged(qint64))); +} + +VideoPlayer::~VideoPlayer() +{ +} + + +void VideoPlayer::openFile() +{ + QString fileName = QFileDialog::getOpenFileName(this, tr("Open Movie"),QDir::homePath()); + + if (!fileName.isEmpty()) { + mediaPlayer.setMedia(QUrl::fromLocalFile(fileName)); + + playButton->setEnabled(true); + } +} + +void VideoPlayer::play() +{ + switch(mediaPlayer.state()) { + case QMediaPlayer::PlayingState: + mediaPlayer.pause(); + break; + default: + mediaPlayer.play(); + break; + } +} + +void VideoPlayer::mediaStateChanged(QMediaPlayer::State state) +{ + switch(state) { + case QMediaPlayer::PlayingState: + playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause)); + break; + default: + playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); + break; + } +} + +void VideoPlayer::positionChanged(qint64 position) +{ + positionSlider->setValue(position); +} + +void VideoPlayer::durationChanged(qint64 duration) +{ + positionSlider->setRange(0, duration); +} + +void VideoPlayer::setPosition(int position) +{ + mediaPlayer.setPosition(position); +} + + +void VideoPlayer::rotateVideo(int angle) +{ + //rotate around the center of video element + qreal x = videoItem->boundingRect().width() / 2.0; + qreal y = videoItem->boundingRect().height() / 2.0; + videoItem->setTransform(QTransform().translate(x, y).rotate(angle).translate(-x, -y)); +} |