void resizeEvent(QResizeEvent *event) override;
void scrollContentsBy(int dx, int dy) override;
void wheelEvent(QWheelEvent *event) override;
+ void focusInEvent(QFocusEvent *event) override;
+ void focusOutEvent(QFocusEvent *event) override;
private Q_SLOTS:
void slotScrollOrientationChanged(Qt::Orientation current, Qt::Orientation previous);