2000-01-26  Michael Natterer  <mitch@gimp.org>

	* app/preferences_dialog.c: made the handling of the values which
	can't be changed on the fly consistent:

	- Some of the widget callbacks were connected to gimprc variables
	  instead of pref dialog's "edit_" variables.
	- Correctly assign value, edit_value, old_value and save_value for
	  all of them.
	- Separated them from the other values in all functions.
	- Reduced the endless "if" madness in some callbacks.