class OpenerButton : public QPushButton
{
public:
OpenerButton(QWidget * parent = 0);
protected:
void enterEvent(QEvent *e);
void leaveEvent(QEvent *e);
};
OpenerButton::OpenerButton(QWidget * parent)
: QPushButton(parent)
{
//Do necessary initializations For ex:set a menu for opener button
}
void OpenerButton::leaveEvent(QEvent * e)
{
//hide the popup_menu
}
void OpenerButton::enterEvent(QEvent * e)
{
//Show the menu
//You can use animation for ex:
Popup_menu=new Popup_Dialog(this);//Popup_Dialog is a dialog containing all your widgets
QPropertyAnimation *animation = new QPropertyAnimation(Popup_menu,"geometry");
animation->setDuration(500);
animation->setDirection(QAbstractAnimation::Forward);
QRect startRect(Rect_Relative_to_Opener_Button);
QRect endRect(Shifted_Rect_Relative_to_Opener_Button);
animation->setStartValue(startRect);
animation->setEndValue(endRect);
animation->start();
}
Enterevent
マウスカーソルがウィジェットに入ると呼び出されます。同様leaveevent
に、マウスカーソルがウィジェットから離れたとき。