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

	* app/text/gimptextlayer.c (gimp_text_layer_render): don't call
	gimp_image_flush().

	* app/tools/gimpxttool.c (gimp_text_tool_apply): call it here
	instead.

	Now that we have a common place that exchanges drawable->tiles,
	we can abstract away boundary invalidation for this operation:

	* app/core/gimpdrawable.c (gimp_drawable_real_set_tiles):
	call gimp_drawable_invalidate_boundary() before setting
	the new tiles.

	* app/core/gimpchannel.c (gimp_channel_set_tiles)
	* app/core/gimpdrawable-transform.c (gimp_drawable_transform_paste)
	* app/core/gimpimage-undo-push.c (undo_pop_layer_mod)
	* app/core/gimplayer.c (gimp_layer_scale) (gimp_layer_resize)
	(gimp_layer_flip) (gimp_layer_rotate) (gimp_layer_transform)
	* app/text/gimptextlayer.c (gimp_text_layer_render): removed
	calls to gimp_drawable_invalidate_boundary() from all functions
	which finally call gimp_drawable_real_set_tiles().

	* app/tools/gimptransformtool.c (gimp_transform_tool_doit): no
	need to set channel->bounds_known to FALSE, because
	gimp_drawable_set_tiles() already did this.