Re: gnome canvas item apears black on GTK-DirectFB

["svalbard colaco" <svalbardcolaco gmail com>]

Hi Paul Davis ,

Thanks for your prompt reply ;

Can u tell me where exactly the changes have to be done?

As u mentioned there is a fix in quartz ; can u elaborate on that ? where in the source code i can find it ?
Could i provide a similar fix on DirectFB stack or should i use that the mentioned function in the appllication  code itself ?

Awaiting for your inputs...

Thanks & Regards
sv.

On Mon, Jun 9, 2008 at 5:14 PM, Paul Davis <paul linuxaudiosystems com> wrote:

On Mon, 2008-06-09 at 16:00 +0530, svalbard colaco wrote:
> Hi all,
>
> I have an application running on GTK-DirectFB and  its observed
> that  , a part of the window,
> which is a gnome canvas item is not rendered properly rather that
> entire vbox appears black,
> But when i click on , on a click_to_ add canvas item within that vbox
> it appears white as expected.

this happens on the quartz backend too, and is caused by the
non-standard update model used by the canvas. there is a relatively
simply fix on quartz. in the paint() function, the canvas should not be
delivery expose events to itself, but instead should call
gdk_window_invalidate_region().