[openbeos] Re: BBox bug

Selon Mahmoud Al Gammal <obos@xxxxxxxxxxx>:

> There's a problem with our implementation of BBox (in app_kit/source/lib/
> interface/src). When the box is set to B_FOLLOW_ALL_SIDES and the window is 
> resized the old border leaves traces all over the box's background.
> I've taken a look at the code & I think there's nothing wrong with it. 
> Actually, I only tried it because I had the very same problem with a BView 
> subclass that I'm implementing, so I thought I'd find a solution in our BBox,
> 
> but now it needs to be fixed too!
> 
hmm, TAB is dangerous...

so, 
actually, R5 has a similar bug I think (or was it R5.1 ?), 
I saw it on an app where a toolbar was using a BBox as 
background view.
A possible fix would be to Invalidate() all the view on resize,
but that wouldn't be very nice to look at... another possibility 
is to Invalidate() / Draw() and Flush() in the FrameResize() 
hook, if only the old size is still available.

Btw, this happens because, when resizing, app_server doesn't 
force a redraw of the whole frame, neither does BBox itself,
it just redraws the bevel, after app_server has painted the 
ViewColor on the newly exposed area.

François.

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