2002-11-21  Michael Natterer  <mitch@gimp.org>

	* app/base/tile-cache.[ch]: added tile_cache_init() and
	tile_cache_exit() as public functions.

	* app/base/base.c: call them. Connect to GimpBaseConfig's
	notify::tile-cache-size.

	* app/core/gimpimage.c: connect to notify::transparency-type and
	notify::transparency-size and call
	gimp_image_invalidate_layer_previews() in the callback.

	* app/display/gimpdisplay-foreach.[ch]: removed
	gdisplays_expose_full().

	* app/display/gimpdisplayshell-handlers.c: connect to
	notify::transparency-type and notify::transparency-size and expose
	the shell in the callback.

	* app/display/gimpdisplayshell-render.[ch]: added render_init()
	and render_exit() functions and connect to
	notify::transparency-type and notify::transparency-size for
	setting up the render buffers.

	* app/gui/gui.c: call the new functions instead of render_setup().
	Connect to notify::show-tool-tips.

	* app/gui/preferences-dialog.c: copy values between the global
	config object and its local clone only when they have changed.
	Wrap setting of lots of values in g_object_[freeze|thaw]_notify().
	Added lots of mnemonics.

	* app/gui/resolution-calibrate-dialog.c: added mnemonics.

	* app/widgets/gimppropwidgets.c: g_object_set() the values edited
	by the gimp_prop_coordinates() much less often by remembering the
	old values and setting them only when they have changed.