2006-09-24  Michael Natterer  <mitch@gimp.org>

	* app/core/gimpimagemap.c (gimp_image_map_apply): don't restore
	the entire affected area of the drawable here (it can take *long*
	on large selections).

	(gimp_image_map_do): do it here instead, as we idle-process the
	chunks. Slightly reduces overall speed but improves responsiveness
	*massively*

	(gimp_image_map_get_color_at): fixed to honor undo tiles offset
	and be readable.

	(gimp_image_map_commit)
	(gimp_image_map_clear)
	(gimp_image_map_clear): don't unref the image_map here. Objects
	don't memory manage themselves.

	Cleaned up the entire file and got rid of all sorts of uglyness.

	* app/tools/gimpimagemaptool.c: unref the image_map here.

	* app/tools/gimpcurvestool.c (curves_graph_events): update the
	preview on button_press when we are dragging a free curve.