[patch] avoid floating point exception when clicking in the GUI

[Ben Hutchings]

On Thu, Nov 20, 2008 at 10:38:30PM +0100, Petter Reinholdtsen wrote:
> 
> At the moment, dvswitch will crash with floating point exception if
> one click in the main video area before any source is started.  This
> patch solve the issue, but I am not sure if it is the correct
> approach.
> 
> Posting it here for review.  Should it be applied?

Looks reasonable, but please wrap the comment at < 80 characters.

Ben.

-- 
Ben Hutchings
The most exhausting thing in life is being insincere. - Anne Morrow Lindberg
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