+ /// Creates a backup of the current values of the attribute
+ /// It should be realized in the specific widget because of different
+ /// parameters of the current attribute
+ virtual void storeAttributeValue();
+
+ /// Creates a backup of the current values of the attribute
+ /// It should be realized in the specific widget because of different
+ /// parameters of the current attribute
+ /// \param theValid a boolean flag, if restore happens for valid parameters
+ virtual void restoreAttributeValue(const bool theValid);
+