[pygtk] gtk main loop alternatives

[Michael Hohn]

Donn wrote:
> Hi,
> I want to try and draw a series of cairo shapes in a loop that does other 
> stuff like:
>
> while True:
>  canvas.draw()
>  updateStuff()
>  checkStuff()
>
> How do I fit this concept together with the gtk.main() that seems to stop 
> there? Am I looking at some kind of timeout() command?
>
> \d
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>   
You can manually implement a nested event loop.
Using the simple function

    def flush_events():
        # Updates bounding boxes, among others.
        while gtk.events_pending():
            gtk.main_iteration()

your loop could be

    while True:
        draw()
        flush_events()
   
as long as draw() does not block.

-- Mike