Re: bug in image drawing

[Alexander Malmberg]

Benhur Stein wrote:
[snip]
> I'm not sure what is the correct behaviour of copyBits nor composite when
> dealing with flipped views. It seems to me that the point considered is
> always the bottom left of the destination rectangle independently of
> flippedness (if the destination is flipped, that is not the origin of the
> rectangle).

This is tricky, but the behavior of compositing has been discussed
before:

http://mail.gnu.org/archive/html/gnustep-dev/2002-09/msg00013.html
http://mail.gnu.org/archive/html/gnustep-dev/2002-09/msg00051.html

If this doesn't clear it up, tell me and I'll try to provide a better
explanation (with pictures and stuff).

I'm not really familiar with how -xlib handles this (it seems to have
very limited handling of transforms), but -gui is correct afaict (I have
no problems, regardless of GraphicCompositing, with back-art).

- Alexander Malmberg