QT窗口渐现效果，窗口震动效果，鼠标移动窗口

//窗口渐现效果
void MainWindow::closeWindowAnimation() //关闭窗口效果
{
    QPropertyAnimation *animation = new QPropertyAnimation(this,"windowOpacity");
    animation->setDuration(500);
    animation->setStartValue(1);
    animation->setEndValue(0);
    animation->start();
    connect(animation,QPropertyAnimation::finished,this,close);

}
void MainWindow::startAnimation()
{
    QPropertyAnimation *animation = new QPropertyAnimation(this,"windowOpacity");
    animation->setDuration(500);
    animation->setStartValue(0);
    animation->setEndValue(1);
    animation->start();
}

//窗口震动效果
void MainWindow::shakeWindow()
{
    QPropertyAnimation *animation = new QPropertyAnimation(this,"geometry");
    animation->setDuration(500);
    animation->setKeyValueAt(0,QRect(QPoint(this->frameGeometry().x()-3,this->frameGeometry().y()),this->size()));
    animation->setKeyValueAt(0.1,QRect(QPoint(this->frameGeometry().x()+6,this->frameGeometry().y()),this->size()));
    animation->setKeyValueAt(0.2,QRect(QPoint(this->frameGeometry().x()-6,this->frameGeometry().y()),this->size()));
    animation->setKeyValueAt(0.3,QRect(QPoint(this->frameGeometry().x()+6,this->frameGeometry().y()),this->size()));
    animation->setKeyValueAt(0.4,QRect(QPoint(this->frameGeometry().x()-6,this->frameGeometry().y()),this->size()));
    animation->setKeyValueAt(0.5,QRect(QPoint(this->frameGeometry().x()+6,this->frameGeometry().y()),this->size()));
    animation->setKeyValueAt(0.6,QRect(QPoint(this->frameGeometry().x()-6,this->frameGeometry().y()),this->size()));
    animation->setKeyValueAt(0.7,QRect(QPoint(this->frameGeometry().x()+6,this->frameGeometry().y()),this->size()));
    animation->setKeyValueAt(0.8,QRect(QPoint(this->frameGeometry().x()-6,this->frameGeometry().y()),this->size()));
    animation->setKeyValueAt(0.9,QRect(QPoint(this->frameGeometry().x()+6,this->frameGeometry().y()),this->size()));
    animation->setKeyValueAt(1,QRect(QPoint(this->frameGeometry().x()-3,this->frameGeometry().y()),this->size()));
    animation->start();
}

//鼠标移动窗口效果
void MainWindow::mousePressEvent(QMouseEvent *event)
{
    if ( event->button() == Qt::LeftButton )
        {
            startPos = event->globalPos() - this->frameGeometry().topLeft();
            qDebug()<<event->globalPos()<<this->frameGeometry().topLeft()<<startPos;
        }
        else if ( event->button() == Qt::MiddleButton)
            closeWindowAnimation();
        else if(  event->button() == Qt::RightButton )
            shakeWindow();
}

void MainWindow::mouseMoveEvent(QMouseEvent *event)
{
    if ( event->buttons() == Qt::LeftButton &&startPos.y()<40)
        {
            endPos = event->globalPos() - startPos;
            qDebug()<<endPos;
            this->move(endPos);

    }
    //qDebug()<<event->pos().x();
}