hi olivier,

The EEF editor is re-using a lot from the basic EMF editor, we just
enhance the property display of the selected objetcs.

what you are facing seems more related to EMF generally, i let other
people on this forums to help you.

You can try to do the same ( displaying same eobjects on different
branches ) just with the default EMF editor, and see what happens.

then we can try to help to integrate smoothly your developments in the
EEF editor.


Le 17/03/2012 00:01, Olivier Labrosse a écrit :
> Hi,
>
> Our EEF editor makes use of wrapping in order to display the same
> EObjects under different branches of the tree.
>
> Our first implementation had the problem of never displaying anything in
> the Details pane when selecting wrapped item providers. To resolve this,
> we made use of a custom TreeViewer where getSelection() is overridden
> and unwraps the selection unless we're in the middle of a
> preservingSelection() execution (using a custom flag to determine this).
>
> This has been working great until now, as we're noticing side-effects:
> drag and drop of wrapped items is buggy due to the unwrapped selection
> found in the event, which makes it impossible to match the selection (or
> "collection" as it is called in the command) to the wrapped children of
> our transient item providers. Impossible unless we extend
> DragAndDropCommand and override getChildren() to make sure it unwraps
> the children accordingly.
>
> Is this the right way to go? I have a feeling I'm missing something, and
> I'm hoping someone can give me pointers in the case I'm off-track.
>
> Thanks in advance for your support!
>
> -Olivier


--
Cheers,

Stéphane Bouchet, OBEO