Eclipse Community Forums: Standard Widget Toolkit (SWT)

Help

Home

Home » Eclipse Projects » Standard Widget Toolkit (SWT) » PLAF conflict with SWT?

Show: Today's Messages :: Show Polls :: Message Navigator

PLAF conflict with SWT? [message #467286]

Fri, 27 January 2006 17:27

Eclipse User

Originally posted by: janene.r.mccrillis.lmco.com

I have an app that has been using the Compiere PLAF for a long while.
We've recently integrated some code from another group which uses the
SWT, and we're having major problems with the integrated code. If we
use either the defaul or metal PLAF, the program works fine. Turning on
the Compiere PLAF causes the SWT parts of the code to throw exceptions
of "widget disposed".

Anyone have any ideas of what within the Compiere PLAF could be
conflicting with SWT?

TIA,

Janene McCrillis

Report message to a moderator

Re: PLAF conflict with SWT? [message #467298 is a reply to message #467286]

Fri, 27 January 2006 22:47

Jeremy Dowdall

Messages: 48
Registered: July 2009

Member

it may be that the SWT code you're using doesn't always check for
"widget.isDisposed()" before trying to access the widget. If calls are
made to the widget in another thread (through, for example, use of
display.asyncExec) the widget may have already been disposed of in the
first thread and thus, this exception will be thrown.

note that null checks are not enough - the SWT component may be there,
but the underlying native OS widget isn't.

Janene McCrillis wrote:
> I have an app that has been using the Compiere PLAF for a long while.
> We've recently integrated some code from another group which uses the
> SWT, and we're having major problems with the integrated code. If we
> use either the defaul or metal PLAF, the program works fine. Turning on
> the Compiere PLAF causes the SWT parts of the code to throw exceptions
> of "widget disposed".
>
> Anyone have any ideas of what within the Compiere PLAF could be
> conflicting with SWT?
>
> TIA,
>
> Janene McCrillis
>

Report message to a moderator

Re: PLAF conflict with SWT? [message #467347 is a reply to message #467286]

Sun, 29 January 2006 19:31

Daniel Spiewak

Messages: 263
Registered: July 2009

Senior Member

I'm assuming that you're using SWT_AWT to bridge the two toolkits. Relative to SWT_AWT in the SWT hierarchy, which widget is throwing the disposal error?

Report message to a moderator

Previous Topic:	Redrawing
Next Topic:	What components can be inserted in a ToolBar's separator?

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Thu Apr 18 05:12:57 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter