[gef-dev] Z Order API Change

[Ian Bull <irbull@xxxxxxxxxx>]

This is more of a development question, rather than a usage question, so 
I am posting it here.

I am wondering if the IFigure API can be changed to add a 
changeZOrder(IFigure child, int position)?  I have a graph, and when I 
select a node I would like it to appear on top. The usual method (remove 
the node, then add it back) doesn't work in my case.  I have 25 nodes 
(containers) each with 256 children ~= 6400 nodes. Removing a container 
(and firing all the listeners, etc...) takes about 1 1/2 seconds, a 
considerable lag for a selection.  I have experimented with simply 
moving the container in the array of children (then calling invalidate / 
repaint) and the performance is much better (since there is no need for 
all the notifications)?

I will open a bug report, and even get a patch ready if this is 
considered a good idea. However, I have a feeling that GEF doesn't 
support this for a reason. 

cheers,
Ian