Progress bar painting fix

[Mike McCormack]

It might not be Cool (TM) but that seems to be the way it works :)

There is a percentage of install in the middle of the progress bar that 
doesn't get painted without this fix. Any ideas how we know which bit to 
invalidate if there's a number written in the middle of the progress bar?

It introduces no additional flicker that I can see, in any progress bar.

Mike


Dimitrie O. Paun wrote:

> That's just Not Cool (TM). It introduces a lot of flicker, and there
> has been a non-trivial amount of effort put into the invalidate
> routine to eliminate the annoying flicker. Maybe it's not perfect,
> but removing it altogether can't be the answer.