On Tue, 2007-02-20 at 12:54 +0100, Helmut Jarausch wrote:

> I'd like to help to keep the healing tool alive.

That would be very much appreciated since otherwise we would likely
disable the heal tool for the 2.4 release.

> Finally I don't understand what the healing tool has to do
> with a 'brush' (as it is currently implemented)

Painting with a brush is just a way to select an area. And a very nice
and intuitive one also. The problem with the current implementation is
however that it tries to heal while you are painting. This doesn't quite
work. I think it would be better if, while you are painting, the tool
would work like the clone tool. Then, when the mouse is released, the
healing algorithm should be applied on the area selected by the paint

> A bug has been reported when source and destination areas are of
> different depth. Since, IHMO, the healing tool doesn't make sense
> in that case, I'd suggest to simply abort with an informative
> error message.

Why does it not make sense to heal a region in an image using a texture
from another image, or from another layer in the same image? The clone
tool supports this nicely, so it seems to make some sense that the heal
tool supports it as well.

> The current implementation needs an alpha channel but I don't understand
> why?

The implementation needs to be able to deal with an alpha channel. I
don't know the current code very well, but I think that for simplicity
everything is promoted to RGBA.


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