MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
QWidget *window= new QWidget;
window->setWindowTitle("My App");

ml = new WidgetMarqueeLabel(this);
ml->setTextFormat(Qt::RichText);
ml->setAlignment(Qt::AlignBottom);
ml->setText("this is a very long text, weather is very hot");
ml->setFont(QFont("Arial", 20,20));

QGridLayout *layout= new QGridLayout;
video();

QLabel* label= new QLabel;
QMovie* movie = new QMovie("/home/ubuntu/Desktop/graphic.gif");
label->setMovie(movie);
movie->start();

QTimer *timer = new QTimer();
connect(timer,SIGNAL(timeout()),movie,SLOT(move()));               //??How to move QMovie
timer->start(60);

layout->addWidget(videoWidget,0,0);
layout->addWidget(videoWidget1,0,1);
layout->addWidget(ml,1,0,1,2);
layout->addWidget(label,2,0,1,2);

window->setLayout(layout);
window->show();

}

void MainWindow::video()
{
playlist= new QMediaPlaylist();
player= new QMediaPlayer;
videoWidget = new QVideoWidget;
playlist->addMedia(QUrl::fromLocalFile("/opt/VP.mp4"));
player->setPlaylist(playlist);

playlist1= new QMediaPlaylist();
player1= new QMediaPlayer;
videoWidget1 = new QVideoWidget;
playlist1->addMedia(QUrl::fromLocalFile("/opt/hotgirl.mp4"));
player1->setPlaylist(playlist1);

player->setVideoOutput(videoWidget);
player1->setVideoOutput(videoWidget1);
playlist->setCurrentIndex(1);
playlist1->setCurrentIndex(1);
player->play();
player1->play();

}

MainWindow::~MainWindow()
{
delete ui;
}

void MainWindow::move()
{
setPos(x()-10,y());

}
@