2005-08-09  Michael Natterer  <mitch@gimp.org>

	* app/paint-funcs/paint-funcs.[ch] (extract_from_inten_pixels)
	(extract_from_indexed_pixels): pass src_bytes and dest_bytes to
	these functions instead of just the source's bytes and whether it
	has an alpha. Honor dest_bytes when extracting instead of crashing
	by always asuming that the destination has alpha.
	Fixes bug #312392.

	(extract_from_region): removed has_alpha paramater. pass
	src->bytes and dest->bytes to above functions.

	* app/core/gimpselection.c (gimp_selection_extract): changed
	accordingly.