Patch: PaintOp preset usability improvements

[Cyrille Berger Skott]

On Monday 10 January 2011, Silvio Heinrich wrote:
> Hmm... actually i thought this would be more convenient.
> When creating all my brushes i needed to create many brushes with
> similar names like:
> A - Wet Brush 10
> A - Wet Brush 20
> A - Wet Brush 30
> ...
> 
> B - Pencil 05
> B - Pencil 10
> ...
> 
> So i decided to enter the name of the last loaded preset in the lineedit.
> I also did it so i immediately could see what was the last loaded preset.
> But maybe the risk to overwrite something accidentally is to high
> (this was the reason why i highlighted the lineedit background).
> Anyway. Maybe we should see what the users will think?

Alternatively, check if the last part is a number, and increment it, or 
otherwise add a number (like in ksnapshot).
-- 
Cyrille Berger Skott