Bug 517663 - Property "extends" should have a visual representation


The relation from a Resource to its parent resource(s) will be shown
with a hollow arrow (like in a UML class diagram).

If one of the parent resources are not graphically shown in the same
diagram, include the text "extends Parent1 & ..." to the label of the
resources. 

Change-Id: I533224eae2b2f160133de8ff0782bde00c9673de
Signed-off-by: Jad <jad@kth.se>
2 files changed