Method showEvent

ElaWidgetTools/ElaMenu.cpp:134–181

}

void ElaMenu::showEvent(QShowEvent* event)
{
    Q_EMIT menuShow();
    Q_D(ElaMenu);
    //消除阴影偏移
    move(this->pos().x() - 6, this->pos().y());
    updateGeometry();
    if (!d->_animationPix.isNull())
    {
        d->_animationPix = QPixmap();
    }
    d->_animationPix = this->grab(this->rect());
    QPropertyAnimation* posAnimation = new QPropertyAnimation(d, "pAnimationImagePosY");
    connect(posAnimation, &QPropertyAnimation::finished, this, [=]() {
        d->_animationPix = QPixmap();
        update();
    });
    connect(posAnimation, &QPropertyAnimation::valueChanged, this, [=](const QVariant& value) {
        update();
    });
    posAnimation->setEasingCurve(QEasingCurve::OutCubic);
    posAnimation->setDuration(400);
    int targetPosY = height();
    if (targetPosY > 160)
    {
        if (targetPosY < 320)
        {
            targetPosY = 160;
        }
        else
        {
            targetPosY /= 2;
        }
    }

    if (pos().y() + d->_menuStyle->getMenuItemHeight() + 9 >= QCursor::pos().y())
    {
        posAnimation->setStartValue(-targetPosY);
    }
    else
    {
        posAnimation->setStartValue(targetPosY);
    }

    posAnimation->setEndValue(0);
    posAnimation->start(QAbstractAnimation::DeleteWhenStopped);
    QMenu::showEvent(event);
}

void ElaMenu::paintEvent(QPaintEvent* event)
{