2004-03-15  Michael Natterer  <mitch@gimp.org>

	* app/core/core-enums.[ch] (enum GimpUndoType): replaced
	GIMP_UNDO_LAYER_MOD and GIMP_UNDO_CHANNEL_MOD by
	GIMP_UNDO_DRAWABLE_MOD.

	* app/core/gimpimage-undo-push.[ch]: ditto: replaced
	gimp_image_undo_push_layer_mod() and
	gimp_image_undo_push_channel_mod() by
	gimp_image_undo_push_drawable_mod().

	* app/core/gimpdrawable.[ch]: added undo_desc strings for "resize"
	and "scale" to the GimpDrawableClass struct.

	(gimp_drawable_scale)
	(gimp_drawable_resize): pass push_undo = TRUE to
	gimp_drawable_set_tiles_full() and use the undo_desc from the
	class.

	(gimp_drawable_real_set_tiles): push a GIMP_UNDO_DRAWABLE_MOD here...

	* app/core/gimpchannel.c
	* app/core/gimplayer.c: ...and don't push undos in
	GimpItem::scale(), GimpItem::resize(), GimpDrawable::set_tiles().

	* app/core/gimpchannel.c: Removed even more bounds_known = FALSE
	assignments from functions which already call
	gimp_drawable_set_tiles().