Don't try to calculate column height or row width if number of columns or rows is less than one
Don't try to calculate column height or row width if number of columns or rows is less than one

clutter-project/mx,pwithnall/mx,jonnylamb/mx,jonnylamb/mx,clutter-project/mx,pwithnall/mx,pwithnall/mx,jonnylamb/mx,clutter-project/mx,clutter-project/mx,pwithnall/mx,jonnylamb/mx