This patch adds two functions to gdkregion.c.

I needed regions so I was delighted to see them in gtk+ 0.99.4, but
I missed XPolygonRegion wrappers. So, I added them. Only the
second function is really necessary. The first one is just for
convenience.

Note that I haven't really tested them, but they should work. At least
they compile cleanly.

GdkRegion*
gdk_region_new_from_polygon (GdkPoint *points, gint npoints)

This function creates a GdkRegion from a polygon (a set of
points). It's just a plain wrapper around XPolygonRegion.
It sets the fill rule to EvenOddRule.

GdkRegion*
gdk_region_new_from_polygon_with_rule (GdkPoint *points, gint npoints, gint rule)

This function is similar to the first one, with the difference that 
it takes as a parameter the fill rule to use with the region.
The fill rule defaults to EvenOddRule if the actual parameter rule
is not a valid fill rule.



There are some comments in the source as well. These are thoughts of
mine. I don't know what the policies for tests and functions are so I
leave those for the maintainer.


The patch is made against gtk+ 0.99.4.

Per Lewau <perle@lysator.liu.se>