Add several missing protections in case the TPad default constructor is called (fPrimitives is null) and TPad functions are called.
Add several missing protections in case the TPad default constructor is called (fPrimitives is null)
and TPad functions are called.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@19275 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,dawehner/root,bbannier/ROOT