I should have read the code before posting my last message:
Dr William Bland (wjb@xxxxxxxxxxxxxxxxxxxx) wrote:
> I thought about using some kind of "double tile iterator" to do this, e.g:
>
> gimp_pixel_rgn_init (&image_rgn, image_drawable,
> x1, y1, (x2 - x1), (y2 - y1), TRUE, TRUE);
> gimp_pixel_rgn_init (&select_rgn, select_drawable,
> x1, y1, (x2 - x1), (y2 - y1), TRUE, TRUE);
> for (p1 = gimp_pixel_rgns_register (1, &image_rgn),
> p2 = gimp_pixel_rgns_register (1, &select_rgn);
> (p1 != NULL) && (p2 != NULL);
> p1 = gimp_pixel_rgns_process (p1),
> p2 = gimp_pixel_rgns_process (p2))
this better should be
p1 = gimp_pixel_rgns_register (2, &image_rgn, &select_rgn);
p1 != NULL;
p1 = gimp_pixel_rgns_process (p1)
> {
> /* Interesting stuff goes in here! */
> /* Set some of the pixels in select_drawable */
> /* depending on the pixels in image_drawable. */
> }
Then the core will care about the stuff I mentioned in the other mail.
Bye,
Simon
--
Simon.Budig@xxxxxxxxxxx http://www.home.unix-ag.org/simon/
