Replacing KisFilter::overlapMarginNeeded

[Boudewijn Rempt]

On Sunday 07 December 2008, Cyrille Berger wrote:

> With the above, I would a function to KisEffectMask that would take the
> dirty rectangle of a KisLayer as argument, and return which area need to be
> updated. For 2.0, I would simply use KisFilter::overlapMarginNeeded to
> extend the rectangle.

Sounds really good to me. I think we'd better add the proposed API now (even 
if we don't use it yet) so it's in place for 2.1.

-- 
Boudewijn Rempt | http://www.valdyas.org