- when dragging the endpoint of an arc, show a helper line to visually connect

the point being dragged
- added pop-up menus for all frame and variable items (on-going)
- clickable items in the frame/var area now only respond to the left button,
  unless they have a pop-up
- removed the frame delete icon - use pop-up instead



git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5396 99fdad57-331a-0410-800a-d7fa5415bdb3

obj.h

@@ -27,6 +27,7 @@ struct var {
 
 	/* back reference */
 	struct frame *frame;
+	struct table *table; /* NULL if loop */
 
 	/* for the GUI */
 	GtkWidget *widget;