Connections aren't targetted for dragging. The parts that can be dragged
onto connections should override getDragTracker() and return a custom
DragEditPartsTracker that would target connection parts.
"Jason Kealey" <email@example.com> wrote in message
> We're creating an editor for a visual notation. As a simplified view,
> assume nodes and connections.
> In the editpart for our node, we've installed a component_role and
> layout_role. (also, probably irrelevant: selection_feedback_role)
> When dragging a node onto another, thanks to the xylayouteditpolicy we
> have, createAddCommand() is called and we can perform some graph
> manipulation when a user drops a node onto another.
> I've been unable to replicate this behaviour when nodes are dropped on
> connections and I was wondering if there is something I don't quite
> (Or maybe I am doing it all wrong)
i have the same problem. I want to drag a connection and drop it on another connection. But I only get a "add children request", but there are no EditParts in the request. I ve modified the DragEditPartsTracker, so its getExclusionSet()-Method returns an EMPTY_LIST. But still a createAddCommand is never called.
Did you do something else?
Thanks a lot for your reply!
I already solved the problem. Didn't thought about handling a connection as a Node. For that reason, a NonResizableEditPolicy can be installed for the connection. Then the requests are send.