Revert e96dabc4

Diggory i think there was a misunderstanding in our discussion

The patch is unfinished (not goot to commit with a TODO)
and needs to be improved (need to find a way to not break ABI, QSize param should be const &) please
open a reviewrequest and we can discuss/finalize it there.

CCMAIL: diggory.hardy@unibas.ch