Geometry Animation Use this class when you want to change the geometry of an QGraphicsWidget in an animated way (you should at least set the target geometry)
Implementation of AuthorizationInterface that you can use if you want to use standard pin pairing authorization (let the user type the same password at both sides) in your shell for every rule that doesn't match
Allows applets to automatically 'collapse' into an icon when put in an panel, and is a convenient base class for any applet that wishes to use extenders