[news.eclipse.modeling.gmf] Auto arrange elements when added to a Compar

[mat.loo@xxxxxxxxx (Mat Lo)]

Hi,

When the user create elements (children) into a compartment (parent), I 
would like to automatically arrange children (the new one and the old 
ones) so that they are all horizontally aligned.

I guess I have to add a FlowLayout (vertical=false, forceSingleLine=true) 
to my Compartment figure (do I have to use a FlowLayoutData too ???).
But I don't know how to force the layout calculation to be processed when 
a child is added.

I tried some "revalidate" things on the Figure compartment but it does not 
seem to work.

Any idea ?
Thx