2008-01-30  Michael Natterer  <mitch@gimp.org>

	* app/tools/gimpimagemaptool.[ch]: add "GObject **config" return
	value to GimpImageMapTool::get_operation() and memory-manage the
	config object here.

	Add default implementation of GimpImageMapTool::reset() which
	calls gimp_config_reset() on the config object.

	* app/tools/gimpbrightnesscontrasttool.c
	* app/tools/gimpcolorbalancetool.c
	* app/tools/gimpcolorizetool.c
	* app/tools/gimpcurvestool.c
	* app/tools/gimphuesaturationtool.c
	* app/tools/gimplevelstool.c
	* app/tools/gimpposterizetool.c
	* app/tools/gimpthresholdtool.c: return the config object in
	get_operation() and don't unref it in finalize().

	Connect to the config object's "notify" signal and update the GUI
	in the callback. Also call gimp_image_map_tool_preview() there.
	Removed all other GUI update functions and all calls to preview().

	Removed reset() implementations which only called
	gimp_config_reset().


svn path=/trunk/; revision=24752