[news.eclipse.modeling.gmf] Re: Change location on creation

[gioit_85@xxxxxxxxxxx (Giordano )]

Javier wrote:

> So that child node isn't actually contained in the parent node, but just a 
> reference.... so then you have to handle the behavior in the 
> handleNotificationEvent() method of the container (the real one, maybe 
> it's the diagram), and there you should search for the parent of the 
> reference and act accordingly.

Hi Javier, thanks for your help!
I found a way using policies but I have a problem.

I write the code to move B near A. If I install the policy in B as an 
OPEN_POLICY (double click on B) it works, if I install as a 
DRAG_DROP_POLICY on A (When I create A this policy is called) it doesen't 
work. I can access to B but the code doesn't work, B stay in the original 
position. 

This is the code to move b, i get b editPart looping on diagram's sons 
looking for the right b (the one that as a reference to the same a of the 
policy)


b = (BEditPart) a.getViewer().getEditPartRegistry().get(child);
Point aPoint = a.getLocation();
Point bPoint = b.getLocation();
//Calculate b new position
bPoint.x = aPoint.x - bPoint.x + (a.getSize().width / 2);
bPoint.y = aPoint.y - bPoint.y + (a.getSize().height / 2);
//Create the command
move_req = new ChangeBoundsRequest(RequestConstants.REQ_MOVE);
move_req.setMoveDelta(bPoint);
move_req.setEditParts(b);
													
cmd = balloon.getCommand(move_req);
return cmd;

This code works in OpenEditPolicy installed in B, but not in DRAG_DROP 
policy