diff -r 436ac20f7639 -r 7ea61bd1aa23 Graphics/SvgDiagram.py --- a/Graphics/SvgDiagram.py Mon Jan 22 15:59:30 2018 +0100 +++ b/Graphics/SvgDiagram.py Mon Jan 22 17:07:22 2018 +0100 @@ -164,7 +164,7 @@ delta = evt.delta() if delta < 0: self.__zoomOut() - else: + elif delta > 0: self.__zoomIn() evt.accept() return