not receiving motion-notify-events

[Raymond Maple]

Hello,
    I recently upgraded to ubuntu 9.10, and am having trouble with a pyglkglext application I have been working on.  The code runs fine on RHEL5.3 and ubuntu 9.04, but when I run under ubuntu 9.10, I do not receive any motion-notify-events in the GLArea window.  My application uses GLScene/GLArea from the gtk.gtkgl.apputils module.  I have confirmed that motion-nofity-event is being added and the callback connected, but the event never seems to be raised.  Button-press and button-release events seem to be behaving correctly, as well as scroll wheel events (which I add manually since button5-events don't work in gtk 2.2).  Has anyone else seen this behavior?  Any suggestions on diagnosing/fixing?

library versions reported by ubuntu (all installed as ubuntu packages from 9.10 repositories):

python 2.6.4
libgtk2.18
pygtk 2.16
libgtkglext 1.2
pygtkglext 1.1.0-3
pyopengl 3.0.0

Thanks,
Ray


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[Mukund Sivaraman]

On Mon, Dec 07, 2009 at 09:39:56PM -0600, Raymond Maple wrote:

> Hello,
>     I recently upgraded to ubuntu 9.10, and am having trouble with a
> pyglkglext application I have been working on.  The code runs fine on
> RHEL5.3 and ubuntu 9.04, but when I run under ubuntu 9.10, I do not receive
> any motion-notify-events in the GLArea window.  My application uses
> GLScene/GLArea from the gtk.gtkgl.apputils module.  I have confirmed that
> motion-nofity-event is being added and the callback connected, but the event
> never seems to be raised.  Button-press and button-release events seem to be
> behaving correctly, as well as scroll wheel events (which I add manually
> since button5-events don't work in gtk 2.2).  Has anyone else seen this
> behavior?  Any suggestions on diagnosing/fixing?

> libgtk2.18

This bug has to do with the new client-side windows behavior in GTK+.

A work-around is to export GDK_NATIVE_WINDOWS=1 and then run the
application.

The GtkGLExt bug report is here:
https://bugzilla.gnome.org/show_bug.cgi?id=603849

                Mukund
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[Mukund Sivaraman]

On Mon, Dec 07, 2009 at 09:39:56PM -0600, Raymond Maple wrote:
> Hello,
>     I recently upgraded to ubuntu 9.10, and am having trouble with a
> pyglkglext application I have been working on.  The code runs fine on
> RHEL5.3 and ubuntu 9.04, but when I run under ubuntu 9.10, I do not receive
> any motion-notify-events in the GLArea window.  My application uses

It seems like the motion mask behavior has changed recently in GTK+.
Adding GDK_POINTER_MOTION_MASK events fixes the issue for the shapes
example.  See if doing this fixes the issue for you too.

                Mukund
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[Mukund Sivaraman]

On Mon, Dec 07, 2009 at 09:39:56PM -0600, Raymond Maple wrote:

> Hello,
>     I recently upgraded to ubuntu 9.10, and am having trouble with a
> pyglkglext application I have been working on.  The code runs fine on
> RHEL5.3 and ubuntu 9.04, but when I run under ubuntu 9.10, I do not receive
> any motion-notify-events in the GLArea window.  My application uses
> GLScene/GLArea from the gtk.gtkgl.apputils module.  I have confirmed that
> motion-nofity-event is being added and the callback connected, but the event
> never seems to be raised.  Button-press and button-release events seem to be
> behaving correctly, as well as scroll wheel events (which I add manually
> since button5-events don't work in gtk 2.2).  Has anyone else seen this
> behavior?  Any suggestions on diagnosing/fixing?

Hi Raymond

It turns out that this was a bug in gtk+. It has been fixed in the gtk+
2.18.5 release.  Upgrading to this version should fix the bug for you.

The gtk+ bug: https://bugzilla.gnome.org/show_bug.cgi?id=601473

                Mukund
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