Re: [e4-dev] Re-use of View in Dialog

[Eric Moffatt <emoffatt@xxxxxxxxxx>]

Lars, if you want to put a part into
a dialog you should be able to use the rendering engine directly. The only
requirement should be that the MPart's context is correctly initialized
*before* you call 'createGui(partComposite, part)'.

You'll need the appropriate MWindow's
context and the rendering engine (get from the application context through
IPresentationEngine.class.getName() )

1) Construct the context for the part
using the MWindow's context as the parent and set it on the part
2) In the dialog's 'createContents'
method create a Composite to host the Part.
3) call the rendering engine's two arg
 'createGui', passing the composite and the part

The only problem I see is that we've
extended the information the rendering engine populates a new context with
quite a bit (i.e. we expose all interfaces like MUILabel, MContext.. to
make them injectable). Depending on how much of this extra ;local' info
your part needs you may have to add what you need to host the part into
 its context yourself.

This leads me to wonder whether we should
just add a 'parentContext' to the current two arg 'createGui' which would
allow the part's context creation to go through the standard context creation
code.

Let me know if you're having problems
getting this to work, it should...
Eric

From:	Lars Vogel <lars.vogel@xxxxxxxxxxxxxx>
To:	E4 Project developer mailing list <e4-dev@xxxxxxxxxxx>
Date:	03/16/2010 10:24 PM
Subject:	Re: [e4-dev] Re-use of View in Dialog
Sent by:	e4-dev-bounces@xxxxxxxxxxx

---

Thank Remy, I'll give it a try .

2010/3/16 Remy Chi Jian Suen <remy.suen@xxxxxxxxx>:
> On Tue, Mar 16, 2010 at 10:01 PM, Lars Vogel <lars.vogel@xxxxxxxxxxxxxx>
wrote:
>> one of the target of e4 was the flexibl re-use of component. I
believe
>> I once saw an example where a view was re-used in a dialog.
>
> It should just be a matter of creating an MWindow and then moving
the
> MPart over to the MWindow. You may have to force some layout calls
but
> that's the basic gist of it.
>
> So first instantiate a new MWindow via the EMF factory, then attach
it
> to the application (or as a child of your top-level window), this
> should cause a new Shell to be instantiated, if not you can ask the
> IPresentationEngine to create the window (engine.createGUI(mwindow),
> mwindow.getWidget() should be non-null). Then just add the MPart as
a
> children to the MWindow.
>
> Regards,
> Remy
> _______________________________________________
> e4-dev mailing list
> e4-dev@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/e4-dev
>



-- 
Lars
http://www.vogella.de
- Tutorials about Java, Eclipse and Web programming
http://www.twitter.com/vogella
- Lars on Twitter
_______________________________________________
e4-dev mailing list
e4-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/e4-dev