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++ // Copyright (C) 2017 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include "videoplayer.h"
++
++ #include <QBoxLayout>
++ #include <QDir>
++ #include <QFileDialog>
++ #include <QGraphicsScene>
++ #include <QGraphicsVideoItem>
++ #include <QGraphicsView>
++ #include <QHBoxLayout>
++ #include <QPushButton>
++ #include <QScreen>
++ #include <QSlider>
++ #include <QStandardPaths>
++ #include <QStyle>
++ #include <QVBoxLayout>
++ #include <QWidget>
++
++ VideoPlayer::VideoPlayer(QWidget *parent) : QWidget(parent)
++ {
++ m_mediaPlayer = new QMediaPlayer(this);
++ const QSize screenGeometry = screen()->availableSize();
++ m_videoItem = new QGraphicsVideoItem;
++ m_videoItem->setSize(QSizeF(screenGeometry.width() / 3, screenGeometry.height() / 2));
++
++ QGraphicsScene *scene = new QGraphicsScene(this);
++ QGraphicsView *graphicsView = new QGraphicsView(scene);
++
++ scene->addItem(m_videoItem);
++
++ QSlider *rotateSlider = new QSlider(Qt::Horizontal);
++ rotateSlider->setToolTip(tr("Rotate Video"));
++ rotateSlider->setRange(-180, 180);
++ rotateSlider->setValue(0);
++
++ connect(rotateSlider, &QAbstractSlider::valueChanged, this, &VideoPlayer::rotateVideo);
++
++ QAbstractButton *openButton = new QPushButton(tr("Open..."));
++ connect(openButton, &QAbstractButton::clicked, this, &VideoPlayer::openFile);
++
++ m_playButton = new QPushButton;
++ m_playButton->setEnabled(false);
++ m_playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
++
++ connect(m_playButton, &QAbstractButton::clicked, this, &VideoPlayer::play);
++
++ m_positionSlider = new QSlider(Qt::Horizontal);
++ m_positionSlider->setRange(0, 0);
++
++ connect(m_positionSlider, &QAbstractSlider::sliderMoved, this, &VideoPlayer::setPosition);
++
++ QBoxLayout *controlLayout = new QHBoxLayout;
++ controlLayout->setContentsMargins(0, 0, 0, 0);
++ controlLayout->addWidget(openButton);
++ controlLayout->addWidget(m_playButton);
++ controlLayout->addWidget(m_positionSlider);
++
++ QBoxLayout *layout = new QVBoxLayout(this);
++ layout->addWidget(graphicsView);
++ layout->addWidget(rotateSlider);
++ layout->addLayout(controlLayout);
++
++ m_mediaPlayer->setVideoOutput(m_videoItem);
++ connect(m_mediaPlayer, &QMediaPlayer::playbackStateChanged, this,
++ &VideoPlayer::mediaStateChanged);
++ connect(m_mediaPlayer, &QMediaPlayer::positionChanged, this, &VideoPlayer::positionChanged);
++ connect(m_mediaPlayer, &QMediaPlayer::durationChanged, this, &VideoPlayer::durationChanged);
++ }
++
++ VideoPlayer::~VideoPlayer() { }
++
++ QSize VideoPlayer::sizeHint() const
++ {
++ return (m_videoItem->size() * qreal(3) / qreal(2)).toSize();
++ }
++
++ bool VideoPlayer::isPlayerAvailable() const
++ {
++ return m_mediaPlayer->isAvailable();
++ }
++
++ void VideoPlayer::openFile()
++ {
++ QFileDialog fileDialog(this);
++ fileDialog.setAcceptMode(QFileDialog::AcceptOpen);
++ fileDialog.setWindowTitle(tr("Open Movie"));
++ fileDialog.setDirectory(QStandardPaths::standardLocations(QStandardPaths::MoviesLocation)
++ .value(0, QDir::homePath()));
++ if (fileDialog.exec() == QDialog::Accepted)
++ load(fileDialog.selectedUrls().constFirst());
++ }
++
++ void VideoPlayer::load(const QUrl &url)
++ {
++ m_mediaPlayer->setSource(url);
++ m_playButton->setEnabled(true);
++ }
++
++ void VideoPlayer::play()
++ {
++ switch (m_mediaPlayer->playbackState()) {
++ case QMediaPlayer::PlayingState:
++ m_mediaPlayer->pause();
++ break;
++ default:
++ m_mediaPlayer->play();
++ break;
++ }
++ }
++
++ void VideoPlayer::mediaStateChanged(QMediaPlayer::PlaybackState state)
++ {
++ switch (state) {
++ case QMediaPlayer::PlayingState:
++ m_playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause));
++ break;
++ default:
++ m_playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
++ break;
++ }
++ }
++
++ void VideoPlayer::positionChanged(qint64 position)
++ {
++ m_positionSlider->setValue(position);
++ }
++
++ void VideoPlayer::durationChanged(qint64 duration)
++ {
++ m_positionSlider->setRange(0, duration);
++ }
++
++ void VideoPlayer::setPosition(int position)
++ {
++ m_mediaPlayer->setPosition(position);
++ }
++
++ void VideoPlayer::rotateVideo(int angle)
++ {
++ // rotate around the center of video element
++ qreal x = m_videoItem->boundingRect().width() / 2.0;
++ qreal y = m_videoItem->boundingRect().height() / 2.0;
++ m_videoItem->setTransform(QTransform().translate(x, y).rotate(angle).translate(-x, -y));
++ }
++
++ #include "moc_videoplayer.cpp"