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data binding beteen xtext and swt [message #1048338]

Wed, 24 April 2013 06:23

Eclipse User

I am building a plugin for eclipse that provides a graphical editor.
In this editor, I want to bind some data between an XText model and the SWT widgets. How can I do this while updating the XTextDocument automatically?
Are there existing tools that help with this, or do code generation for this?

By now, I have created with window builder plugin JFace Automatic Databinding with controller class.
it seem that whenever I change the text field which the xtext data model (JString) is bind to, the binding put null/new instance of JString into the JString instance.
so the document isn't familiar with the new JString instance and it is not updated with the new data.

Re: data binding beteen xtext and swt [message #1049682 is a reply to message #1048338]

Fri, 26 April 2013 02:36

Eclipse User

Hi Dana,
the emf model of xtext should only be accessed in a IUnitOfWork while inside the XtextDocument.modify or XtextDocument.readOnly. For Databinding the binding should be against the URI of the EObject and read and write inside the unitOfWork. As far as I know, there is no implementation for the eclipse databinding and xtext yet. Implementation could be similar to those of EMFEditProperties with XtextDocument instead of editing domain.

Benjamin

Re: data binding beteen xtext and swt [message #1052942 is a reply to message #1048338]

Wed, 01 May 2013 09:55

Eclipse User

I extended AbstractObservableValue to work with simple xtext models as string boolean and numbers. which help me to bind between swt model and my xtext models

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