Selections

[Boudewijn Rempt]

On Tuesday 24 August 2004 14:15, Adrian Page wrote:

> The main advantage of keeping the loops separate is that the code is a lot
> simpler, which is always a good thing. And since every paint operation
> (brush, airbrush, line, fill, gradient, etc) will need to respect the
> selection, the simplest method would be to write to a temporary paint
> device, apply the selection to that, then composite, rather than putting
> selection handling into each inner loop. Of course, if it is too slow, the
> more efficient route would be the one to take. Perhaps we should experiment
> and see what works best.

Selections are already paint devices -- not that I'm entirely satisfied, since 
they have the colour model of their parent, and that's not necessary, just a 
single channel, so compositing should be really easy.