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#include "LVideoLabel.h"
#include <QCoreApplication>
LVideoLabel::LVideoLabel(QString file, QWidget *parent) : QLabel(parent) {
thumbnail = QPixmap();
entered = false;
shrink = true;
filepath = file;
QTimer::singleShot(0, this, SLOT(initializeBackend()) );
}
LVideoLabel::~LVideoLabel() {
mediaPlayer->deleteLater();
surface->deleteLater();
}
void LVideoLabel::setShrinkPixmap(bool shrink) {
this->shrink = shrink;
}
void LVideoLabel::initializeBackend(){
mediaPlayer = new QMediaPlayer(this, QMediaPlayer::VideoSurface);
surface = new LVideoSurface(this);
mediaPlayer->setVideoOutput(surface);
mediaPlayer->setPlaybackRate(3);
mediaPlayer->setMuted(true);
mediaPlayer->setMedia(QUrl::fromLocalFile(filepath));
mediaPlayer->play();
this->connect(surface, SIGNAL(frameReceived(QPixmap)), this, SLOT(stopVideo(QPixmap)));
this->connect(mediaPlayer, SIGNAL(stateChanged(QMediaPlayer::State)), this, SLOT(stateChanged(QMediaPlayer::State)));
this->connect(mediaPlayer, SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)), this, SLOT(setDuration(QMediaPlayer::MediaStatus)));
this->connect(this, SIGNAL(rollOver()), surface, SLOT(switchRollOver()));
}
void LVideoLabel::stopVideo(QPixmap pix) {
if(!entered) {
emit frameReceived(pix);
if(thumbnail.isNull())
thumbnail = pix;
this->setPixmap(thumbnail.scaled(this->size(),Qt::IgnoreAspectRatio));
mediaPlayer->pause();
}else {
this->setPixmap(pix.scaled(this->size(),Qt::IgnoreAspectRatio));
}
}
void LVideoLabel::stateChanged(QMediaPlayer::State state) {
//qDebug() << state;
}
void LVideoLabel::setDuration(QMediaPlayer::MediaStatus status) {
//qDebug() << status;
if(status == QMediaPlayer::BufferedMedia && !entered) { //Set duration in the middle to capture the thumbnail
mediaPlayer->setPosition(mediaPlayer->duration() / 2);
mediaPlayer->play();
}else if(status == QMediaPlayer::EndOfMedia && entered) { //Loop back to the beginning if playback started and at the end of the video
mediaPlayer->setPosition(0);
mediaPlayer->play();
}else if(status == QMediaPlayer::InvalidMedia){
mediaPlayer->stop();
mediaPlayer->play();
}/*else if(status == QMediaPlayer::LoadingMedia) {
mediaPlayer->pause();
QTimer timer;
timer.setSingleShot(true);
timer.setInterval(300);
timer.start();
qDebug() << "Timer Started" << timer.remainingTime();
while(timer.isActive()) QCoreApplication::processEvents(QEventLoop::AllEvents, 5);
qDebug() << "Timer Finished" << timer.remainingTime();
mediaPlayer->setPosition(0);
mediaPlayer->play();
}*/
}
void LVideoLabel::resizeEvent(QResizeEvent *event) {
if(!thumbnail.isNull()) //Resize the current pixmap to match the new size
this->setPixmap(thumbnail.scaled(this->size(),Qt::IgnoreAspectRatio));
QLabel::resizeEvent(event);
}
//Start playing the video from the beginning when the mouse enters the label
void LVideoLabel::enterEvent(QEvent *event) {
entered=true;
emit rollOver();
mediaPlayer->setPosition(0);
mediaPlayer->play();
QWidget::enterEvent(event);
}
//Stop the video and set the thumbnail back to the middle of the video when the mouse leaves the label
void LVideoLabel::leaveEvent(QEvent *event) {
entered=false;
mediaPlayer->setPosition(mediaPlayer->duration() / 2);
emit rollOver();
QWidget::leaveEvent(event);
}
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