2003-05-09  Michael Natterer  <mitch@gimp.org>

	* app/core/gimpitem.[ch]: added "gboolean push_undo" to
	GimpItem::translate() and don't push and undo in
	gimp_item_translate().

	* app/core/gimpchannel.[ch]: removed public function
	gimp_channel_translate() and implement GimpItem::translate().

	* app/core/gimpimage-mask.c
	* app/core/gimplayer.c: changed accordingly.

	* app/vectors/gimpvectors.c: actually translate the vectors
	in translate().

	* app/gui/channels-commands.c (channels_new_channel_query): removed
	useless call to gimp_channel_translate().

	* app/tools/gimpeditselectiontool.c
	* tools/pdbgen/pdb/layer.pdb: when translating a linked layer,
	also translate all linked channels and vectors. Cleanup.

	Note that the "linked" behaviour has changed: before this change,
	moving a layer moved all linked layers unconditionally. Now,
	linked layers/channels/vectors are moved *only* if the moved layer
	is also linked (the linked items behave as a group now and moving
	something not in the group does not affect the group).

	* app/pdb/layer_cmds.c: regenerated.