... nowconnect theclicked()signalofthe Screenshot!buttontothe slot thatprepares thescreenshot,and thesignalofthe Printbuttontothe slot that enablestheconfiguration of theprintingparameters. Then wecallgrabDesktop(), ... determine the diameter via pieRect(). So that the gradient later “creases” the edge of the pie chart circle, thus creating the impression of spatial depth, we place the focus to the edge of the upper ... system,but thepoint at thecenter of thesquare, wefirstmovethecenter of oursquaretothe zeropoint of ourcoordinate system.Thenwerotatethematrixandmovethe point back to it soriginallocat ion.We then...