class QState;
class QStateMachine;
+class ListItemContextButtonBar;
class PanelBar;
class PanelContentStack;
class PanelContextButtonBar;
QState *m_stateClosed; ///< State of the closed panel
QState *m_stateOpened; ///< State of the opened panel
+ ListItemContextButtonBar *m_itemContextButtonBar;
PanelBar *m_panelBar; ///< Widget for panel bar
PanelContentStack *m_panelContentStack; ///< Stack for panel widgets
PanelContextButtonBar * m_panelContextButtonBar; ///< Widget for panel context button bar