strange, isNull doesn't seem to be working right for QSize.  use isValid  instead..
strange, isNull doesn't seem to be working right for QSize.  use isValid 
instead..


git-svn-id: 2cc691a92423afb73d43abf86552d58822d2fb7e@485 ac7a513c-5e3a-0410-af42-968c3ac6e7dc

psi-im/psimedia,psi-im/psimedia