2003-09-09  Simon Budig  <simon@gimp.org>

	* app/vectors/gimpvectors-compat.[ch]: Made
	gimp_vectors_compat_get_points accept more paths gracefully. It
	now is sufficient if there is up to one open stroke in the
	vectors object - it does not have to be the last one.

	Added function to determine if all vectors can be saved in
	compatibility mode.

	* app/vectors/gimpanchor.[ch]: Made GimpAnchor a boxed type.
	* app/vectors/gimpstroke.[ch]: Add two properties to gimpstroke:
	"closed" and "control-points" (the latter is
	G_PARAM_CONSTRUCT_ONLY). Added functions to get the points that
	determine the shape of the stroke - necessary for proper saving.

	* app/xcf/xcf-private.h: added new PROP_VECTORS and XcfStrokeType.

	* app/xcf/xcf-load.c: Be able to load PROP_VECTORS, make loading
	of PROP_PATHS ignore empty paths.

	* app/xcf/xcf-save.c: Added code for saving PROP_VECTORS,
	disabled by default. Define NEW_SAVE_CODE if you want to test
	it. No guarantees are made about the forward compatibility of
	the format used.