2004-07-08  Michael Natterer  <mitch@gimp.org>

	* app/widgets/gimpselectiondata.[ch]: added a "const gchar *format"
	parameter to gimp_selection_data_set_pixbuf() which selects the
	format in which to encode the pixbuf (was defaulting to "png"
	before).

	* app/widgets/gimpclipboard.c: when copying, offer all formats which
	are savable with GdkPixbuf. Added a GimpClipboard struct which is
	attached to the Gimp and which stores all the persistent data
	needed by the clipboard. Renamed some private functions.

	(unfortunately this change breaks pasting to AbiWord:
	 http://bugzilla.abisource.com/show_bug.cgi?id=7068)