On Fri, Oct 21, 2016 at 7:28 PM, Andrew Eikum <aeikum@codeweavers.com> wrote:

+ *contains = probe.x > geometry->u.rectangle.rect.left - tolerance &&
+ probe.x < geometry->u.rectangle.rect.right + tolerance &&
+ probe.y > geometry->u.rectangle.rect.top - tolerance &&
+ probe.y < geometry->u.rectangle.rect.bottom + tolerance;
+

Does it really work like that? I'd expect tolerance to be irrelevant for paths constructed purely from lines.

So basically in general case path is approximated with lines (or enclosed area with triangles) with given tolerance,

and then point is tested against this flattened path. While in rectangular case it's already flat to begin with.