2004-01-05  Sven Neumann  <sven@gimp.org>

	* app/core/core-enums.[ch]: added GIMP_UNDO_TEXT_LAYER to
	GimpUndoType enum.

	* app/core/gimpimage-undo-push.[ch]: added new undo function
	gimp_image_undo_push_text_layer().

	* app/text/gimptextlayer.[ch]: renamed gimp_text_layer_render() to
	gimp_layer_text_layer_flush().
	Added new function gimp_text_layer_discard().

	* app/text/gimptextlayer-transform.c: changed accordingly.

	* app/gui/image-menu.c
	* app/gui/layers-commands.[ch]
	* app/gui/layers-menu.c: added menu entries that allow to discard
	the text information of a text layer (bug #118547).

	* app/widgets/gimppreviewrendererlayer.c
	(gimp_preview_renderer_layer_render): treat text layers without a
	text object like ordinary layers.

	* app/widgets/gimppreviewrenderer-utils.c: include gimplayer.h
	instead of gimptextlayer.h.