i fire up kolf for the first time in kde4 because i haven't played a game in forever and shudder at all the jaggy lines.

so i make an AntiaAliasedLine class, start replacing all QGraphicsLineItem usage with it ... and then notice someone had already made an AntialisedLine (sic) class that was identical to mine but innexplicably didn't use it everywhere =)

well, problem solved.