[pygtk] check button state continuously

[Steve McClure]

On Fri, 2006-09-29 at 08:54 -0500, skip at pobox.com wrote:
>     Karsten> But because the move_robot function is critical, i wanted to
>     Karsten> have some security if the release event got lost.
> 
> It doesn't appear the Button widget exposes its pressed state via
> properties.  I think you'll just have to assume the released signal is sent
> and caught.  If there was you could recast move_robot as
> 
>     def move_robot(self):
>         # do a little dance ...
>         # make a little love ...
>         # get down tonight!
>         # get down tonight!
>         if self.move_button.state_is_pressed():
>             return False
>         return True
> 
> (The "return True" was missing from the first version.  Without it, the
> timer will be cancelled after the first call.  I was too intent on the "do a
> little dance" comments I guess.)
> 
> Skip

And you can probably reasonably assume that if for whatever reason the
event was "missed" the button state would never be updated anyway as the
network is still the transport for that activity too.

> 
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