+ virtual QList<GEOM::GeomObjPtr> getSourceObjects();
+
+ /**
+ * This method sets/gets the view manager to control the temporary
+ * displayed objects on Z layer.
+ * \param theManager the view manager.
+ */
+ void setPreviewManager( OCCViewer_ViewManager* theManager );
+ OCCViewer_ViewManager* getPreviewManager();
+
+ /**
+ * This method defines a state of selection button.
+ * \return true if selection button is checked, otherwise false.
+ */
+ bool isCheckToSelect();
+