fixes #13775 ensures positive width/height. thx ktiedt (cla)
fixes #13775 ensures positive width/height. thx ktiedt (cla)

git-svn-id: ee6e786acc44c9cca5ee17c71a5576c45c210361@27012 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful