2004-07-09  Federico Mena Quintero  <federico@ximian.com>

	Fixes #137031:

	* gtk/gtkfilesystemunix.c (get_fallback_icon): New helper
	function, fetches a stock icon as a fallback.
	(gtk_file_system_unix_volume_render_icon): Fall back to a stock
	icon.
	(gtk_file_system_unix_render_icon): Fall back to a stock icon.
	Use helper functions rather than being a mega-function.
	(get_icon_name_for_directory): Renamed from
	get_icon_for_directory().
	(get_icon_type_from_path): New helper function; code pulled out
	from gtk_file_system_unix_render_icon().
	(get_special_icon): Likewise.
	(get_icon_for_mime_type): Likewise.