+ /// Returns whether faces panel contains elements
+ /// \return boolean value
+ bool isEmpty() const;
+
+ /// Fills container with the panel selection mode: FACE
+ // \param theModes [out] a container of modes
+ void selectionModes(QIntList& theModes);
+
+ /// Appends into container of workshop selection filters
+ /// \param [out] selection filters
+ void selectionFilters(SelectMgr_ListOfFilter& theSelectionFilters);
+