protected:
void paintEvent(QPaintEvent *event);
bool event(QEvent *event);
void resizeEvent(QResizeEvent *event);
bool eventFilter(QObject *obj, QEvent *event);
protected:
void paintEvent(QPaintEvent *event);
bool event(QEvent *event);
void resizeEvent(QResizeEvent *event);
bool eventFilter(QObject *obj, QEvent *event);