private:
QVBoxLayout *m_userPanelVBox; ///< Vertical layout inside the panel
PanelSliderBar *m_userPanelSlidingBar; ///< Widget for sidebar tab item
+ QWidget *m_panelBase; ///< Widget for panel base
QStateMachine *m_userPanelStateMachine; ///< State machine for sliding the panel
QState *m_userPanelStateClosed; ///< State of the closed panel