[news.eclipse.tools.gef] Re: None-UI thread model updates and Display.ge

["CL [dnoyeb] Gilbert" <Lamont_Gilbert@xxxxxxxxxxxxxxxxx>]

Steve Jones wrote:
> Hi,
>
> I have a multi-page editor based on org.eclipse.ui.forms.editor.FormEditor
> that has a mix of GEF based pages and source/text pages that use
> AbstractTextEditor.
>
> GEF pages update the model and reflect changes as just fine but I'm getting
> null pointer exceptions, in GEF, when I update the model from text pages.
>
> All my model updates use background threads that ultimately call
> AbstractEditPart.refreshVisuals(). This fails, I think, because
> org.eclipse.swt.widgets.Display.getCurrent() returns null when called from
> a none-UI thread.
>
> Whats the best way of dealing with this? 
>
> Steve.

Exactly what I do.  In my property listeners I create a runnable to 
handle the call to refreshVisuals().  Actually my runnable is a class 
member and not a local variable.

I pass my runnable into a display I get by calling

getViewer().getControl().getDisplay();

I use syncExec

CL