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authorJoerg Bornemann <joerg.bornemann@digia.com>2012-12-05 13:03:09 +0100
committerThe Qt Project <gerrit-noreply@qt-project.org>2012-12-05 18:20:35 +0100
commit6b4994c265889db2058b7d5850b51ddfc5478754 (patch)
tree623e53eb8004b6b8ecdb7e2867ab489dde606fac /examples/multimediawidgets/videographicsitem/videoplayer.cpp
parent90c8ba233b77ed74012de3b5598a7617672e9d31 (diff)
centralize and fixup example sources install targets
This follows suit with aeb036e in qtbase. Change-Id: Ie8580d0a1f38ab9858b0e44c9f99bdc552a1752a Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com> Reviewed-by: hjk <qthjk@ovi.com>
Diffstat (limited to 'examples/multimediawidgets/videographicsitem/videoplayer.cpp')
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1 files changed, 167 insertions, 0 deletions
diff --git a/examples/multimediawidgets/videographicsitem/videoplayer.cpp b/examples/multimediawidgets/videographicsitem/videoplayer.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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 Digia Plc 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 <QtWidgets>
+#include <QVideoSurfaceFormat>
+#include <QGraphicsVideoItem>
+
+VideoPlayer::VideoPlayer(QWidget *parent)
+ : QWidget(parent)
+ , mediaPlayer(0, QMediaPlayer::VideoSurface)
+ , videoItem(0)
+ , playButton(0)
+ , positionSlider(0)
+{
+ videoItem = new QGraphicsVideoItem;
+ videoItem->setSize(QSizeF(640, 480));
+
+ QGraphicsScene *scene = new QGraphicsScene(this);
+ QGraphicsView *graphicsView = new QGraphicsView(scene);
+
+ 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));
+}