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Retrieve EditPart by EObject and Diagram [message #225796]

Tue, 14 April 2009 12:31

Eclipse User

Originally posted by: ralph.schreder.gmx.de

Hi All!

Is there a possiblity to retrieve the EditPart that "represents" an EObject
in a diagram from the EObject itself?

I haven't found a solution for that problem! Any help appreciated!!!

protected EContentsEList.FeatureIterator<EObject>
getCrossReferences(EObject eObject)
{
EContentsEList.FeatureIterator<EObject> iter =
(EContentsEList.FeatureIterator<EObject>)
((InternalEList<EObject>)eObject.eCrossReferences()).basicIterator();
return iter;
}

I found an answer (2008), but I can´t understand it. I get null elements
for
CrossReferencer-Iterator.
The answer to the question in the email:
(Use CrossReferencer or traverse Notation model manually to find
corresponding notation model element. Then using
EditPartViewer.getEditPartRegistry() you can get EditPart associated
with this View.)

Thanks in advance,

Ralph

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Re: Retrieve EditPart by EObject and Diagram [message #225825 is a reply to message #225796]

Tue, 14 April 2009 12:52

Esteban Dugueperoux

Messages: 472
Registered: July 2009

Senior Member

Hi Ralph,

In GMF, the ecore model used is agnostic of GMF API, if you want fetch
corresponding EditPart you must get RootEditPart corresponding to you
root model element and iterate through childs (perhaps with
getChildBySemanticHint() ) and check with getHostObject() if the current
EditPart correspond to your EObject.

Ralph a écrit :
> Hi All!
>
> Is there a possiblity to retrieve the EditPart that "represents" an EObject
> in a diagram from the EObject itself?
>
> I haven't found a solution for that problem! Any help appreciated!!!
>
> protected EContentsEList.FeatureIterator<EObject>
> getCrossReferences(EObject eObject)
> {
> EContentsEList.FeatureIterator<EObject> iter =
> (EContentsEList.FeatureIterator<EObject>)
> ((InternalEList<EObject>)eObject.eCrossReferences()).basicIterator();
> return iter;
> }
>
>
> I found an answer (2008), but I can´t understand it. I get null elements
> for
> CrossReferencer-Iterator.
> The answer to the question in the email:
> (Use CrossReferencer or traverse Notation model manually to find
> corresponding notation model element. Then using
> EditPartViewer.getEditPartRegistry() you can get EditPart associated
> with this View.)
>
> Thanks in advance,
>
> Ralph

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