diff -r fffa6456548a -r 616bc933c2bc gui/graph_displayer_canvas.h
--- a/gui/graph_displayer_canvas.h	Mon Oct 17 10:30:59 2005 +0000
+++ b/gui/graph_displayer_canvas.h	Thu Oct 20 15:50:23 2005 +0000
@@ -24,26 +24,32 @@
   ///Changes the linewidth attribute according to the given map.
   ///\param mapname is the name of the map which contains the new values
   int changeEdgeWidth (std::string mapname, Edge new_item=INVALID);
+  int resetEdgeWidth (Edge new_item=INVALID);
 
   ///Changes the linecolor attribute according to the given map.
   ///\param mapname is the name of the map which contains the new values
   int changeEdgeColor (std::string mapname, Edge new_item=INVALID);
+  int resetEdgeColor (Edge new_item=INVALID);
 
   ///Changes the text of line attribute according to the given map.
   ///\param mapname is the name of the map which contains the new values
   int changeEdgeText (std::string mapname, Edge new_item=INVALID);
+  int resetEdgeText (Edge new_item=INVALID);
 
   ///Changes the linewidth attribute according to the given map.
   ///\param mapname is the name of the map which contains the new values
   int changeNodeRadius (std::string mapname, Node new_item=INVALID);
+  int resetNodeRadius (Node new_item=INVALID);
 
   ///Changes the linecolor attribute according to the given map.
   ///\param mapname is the name of the map which contains the new values
   int changeNodeColor (std::string mapname, Node new_item=INVALID);
+  int resetNodeColor (Node new_item=INVALID);
 
   ///Changes the text of line attribute according to the given map.
   ///\param mapname is the name of the map which contains the new values
   int changeNodeText (std::string mapname, Node new_item=INVALID);
+  int resetNodeText (Node new_item=INVALID);
 
   ///Callback for 'ViewZoomIn' action.
   virtual void zoomIn();