This is a bit tricky to verify since OOo is, ehm, odd...
First it only actually recognizes the clip option if the parent style
is "Graphics". Thats a literal name, it doesn't matter if the style is
defined or not.
In OOo the unit system used for the clip is not in document units, not
sure what it expects.

svn path=/trunk/koffice/; revision=1118034