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XtextEditor with external context [message #900707]

Wed, 08 August 2012 08:55

Philipp M. Fischer

Messages: 67
Registered: November 2010
Location: Germany

Member

Hi There,

I am using an embedded XtextEditor starting it with an in memory representation of the instantiated dsl model. It is saved as string to an object that carries some extra information in its members. Within the content assist of the editor i want to be able to access these members but the conext just gives me access to either the dsl model or the xtextdocument. I cant find a convienent way to get access to my object with the extra data i need. I was wondering if i can hand over my object to the xtextdocument when i am creating my editor. Does anyone have a good idea of how to maintain the context to my user object? Confused

Cheers

Phil

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Re: XtextEditor with external context [message #900860 is a reply to message #900707]

Wed, 08 August 2012 18:06

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi,

just an untested fast and stupid guess:
what about subclassing the XtextResource, store the information there (IEditedResourceProvider)
and then downcast the Context Objects Resource in the ProposalProvider and take the information out again?

~Christian

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: XtextEditor with external context [message #900881 is a reply to message #900860]

Wed, 08 August 2012 19:31

Henrik Lindberg

Messages: 2509
Registered: July 2009

Senior Member

On 2012-08-08 20:06, Christian Dietrich wrote:
> Hi,
>
> just an untested fast and stupid guess:
> what about subclassing the XtextResource, store the information there
> (IEditedResourceProvider)
> and then downcast the Context Objects Resource in the ProposalProvider
> and take the information out again?
>
> ~Christian
I use a ResourceAdapter for similar things, have one that sets various
properties.

https://github.com/cloudsmith/geppetto/blob/master/org.cloudsmith.geppetto.pp.dsl/src/org/cloudsmith/geppetto/pp/dsl/adapters/ResourcePropertiesAdapter.java

and its Factory in the same package

Hope that helps. Then just adapt the resource when needed. Works well in
my use cases.

Regards
- henrik

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