2004-12-14  Michael Natterer  <mitch@gimp.org>

	* tools/pdbgen/pdb/drawable.pdb: added gimp_drawable_sub_thumbnail()
	to enable plug-ins avoiding #142074-alike bugs if they need to.

	* app/pdb/drawable_cmds.c
	* app/pdb/internal_procs.c
	* libgimp/gimpdrawable_pdb.[ch]: regenerated.

	* libgimp/gimpdrawable.[ch]
	* libgimp/gimppixbuf.[ch]: wrap it with the same convenience
	APIs as gimp_drawable_thumbnail().

	* libgimp/gimp.def
	* libgimp/gimpui.def: changed accordingly.