51    void addUserInputWidget( QWidget *widget );
 
   55    void paintEvent( QPaintEvent *event ) 
override;
 
   58    void widgetDestroyed( QObject *obj );
 
   62    void setLayoutDirection( QBoxLayout::Direction direction );
 
   65    QMap<QWidget *, QFrame *> mWidgetList;
 
   67    bool mLayoutHorizontal = 
true;
 
   68    QBoxLayout *mLayout = 
nullptr;