2004-03-03  Michael Natterer  <mitch@gimp.org>

	* app/widgets/Makefile.am
	* app/widgets/widgets-types.h
	* app/widgets/gimppreviewrendererimagefile.[ch]: added new preview
	renderer class (has some disabled code from my GtkFileChooser tree
	and behaves exactly as the default implementation).

	* app/widgets/gimppreviewrenderer-utils.c: use it for GimpImagefiles.