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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 <QFileDialog>
#include <QHBoxLayout>
#include <QLabel>
#include <QMediaPlayer>
#include <QPushButton>
#include <QSizePolicy>
#include <QSlider>
#include <QStandardPaths>
#include <QString>
#include <QStyle>
#include <QVideoWidget>
VideoPlayer::VideoPlayer(QWidget *parent) : QWidget(parent)
{
m_mediaPlayer = new QMediaPlayer(this);
QVideoWidget *videoWidget = new QVideoWidget;
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);
m_errorLabel = new QLabel;
m_errorLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Maximum);
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;
layout->addWidget(videoWidget);
layout->addLayout(controlLayout);
layout->addWidget(m_errorLabel);
setLayout(layout);
m_mediaPlayer->setVideoOutput(videoWidget);
connect(m_mediaPlayer, &QMediaPlayer::playbackStateChanged, this,
&VideoPlayer::mediaStateChanged);
connect(m_mediaPlayer, &QMediaPlayer::positionChanged, this, &VideoPlayer::positionChanged);
connect(m_mediaPlayer, &QMediaPlayer::durationChanged, this, &VideoPlayer::durationChanged);
connect(m_mediaPlayer, &QMediaPlayer::errorChanged, this, &VideoPlayer::handleError);
}
VideoPlayer::~VideoPlayer() { }
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)
setUrl(fileDialog.selectedUrls().constFirst());
}
void VideoPlayer::setUrl(const QUrl &url)
{
m_errorLabel->setText(QString());
setWindowFilePath(url.isLocalFile() ? url.toLocalFile() : QString());
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::handleError()
{
if (m_mediaPlayer->error() == QMediaPlayer::NoError)
return;
m_playButton->setEnabled(false);
const QString errorString = m_mediaPlayer->errorString();
QString message = "Error: ";
if (errorString.isEmpty())
message += " #" + QString::number(int(m_mediaPlayer->error()));
else
message += errorString;
m_errorLabel->setText(message);
}
#include "moc_videoplayer.cpp"
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