[pygtk] Pygtk app and hangs.

[Seltzer]

i use gtk.gdk.threads_init() as well,
and don't wrap the main loop in threads enter/leave,
all seems to work well...

hope it helps,
felix

On 9/23/07, John Stowers <john.stowers.lists at gmail.com> wrote:
>
> >
> > Q. Anything I missed, or any suggestions. Is there a
> > comprehensive list/scheme on how to write a MT pygtk
> > app?
> >
>
> After writing a few threaded pygtk programs [1][2] I have settled on
> one approach which I consistently use, I try not to mix the
> threads_enter and threads_leave with idle_add, I use the latter
> exclusively.
>
> I basically override gobject.emit() and always emit on the idle
> handler. Any limitations where you want to touch the GUI from other
> threads and feel you cannot use signals are usually representative of
> design omissions and I find they can usually be rectified by
> restructuring things into a more OO form and deriving from the code
> shown below [3].
>
> Anyway, good luck,
>
> John
>
> [1] http://www.conduit-project.org/
> [2]
> http://www.johnstowers.co.nz/blog/index.php/2007/03/12/threading-and-pygt=
k/
> [3]
>
> class IdleObject(gobject.GObject):
>     __gsignals__ =3D {
>         "foo" : (
>             gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, [])
>         }
>     def __init__(self, emitOnIdle=3DFalse):
>         gobject.GObject.__init__(self)
>         self.emitOnIdle =3D emitOnIdle
>
>     def emit(self, *args):
>         """
>         Override the gobject signal emission so that signals
>         can be emitted from the main loop on an idle handler
>         """
>         if self.emitOnIdle =3D=3D True:
>             gobject.idle_add(gobject.GObject.emit,self,*args)
>         else:
>             gobject.GObject.emit(self,*args)
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>
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