- virtual void mousePressEvent(QMouseEvent *event);
- virtual void mouseReleaseEvent(QMouseEvent *event);
- virtual void keyPressEvent(QKeyEvent *event);
+ void mousePressEvent(QMouseEvent *event);
+ void mouseReleaseEvent(QMouseEvent *event);
+ void mouseMoveEvent(QMouseEvent *event);
+ bool eventFilter(QObject *object, QEvent *event);