2000-03-25  Michael Natterer  <mitch@gimp.org>

	* app/cursorutil.[ch]: new global variable "gimp_busy" which gets
	set/unset whenever busy cursors are added/removed.

	* app/info_dialog.c: register the info dialogs with the dialog
	handler.

	* app/fuzzy_select.[ch]: cleanups.

	Here starts the ugly workaround which simulates something like
	locking. If it works, it will close lots of bugs, if not, it's
	easy to remove again.

	So far, I didn't find strange side effects but Gimp is told to be
	a complex program :-) Please test this.

	* app/context_manager.c: don't allow tool changes if gimp_busy
	is TRUE.

	* app/disp_callbacks.c: don't allow mouse and key events in the
	display_canvas if gimp_busy is TRUE.
	(except if the current tool is FUZZY_SELECT and it is ACTIVE,
	 which is very ugly)
	Also block other stuff like dropping colors/patterns etc.

	* app/gdisplay_ops.c: don't close any display while Gimp is
	busy. This is not really what we want but at least it prevents
	crashes.