gtk-gesture, gtk-event-controller, g-object, common-lisp:standard-object, common-lisp:t

None

gtk-gesture-rotate is a gtk-gesture implementation able to recognize 2-finger rotations, whenever the angle between both handled sequences changes, the "angle-changed" signal is emitted.

The "angle-changed" signal

 lambda (gesture angle delta)    :run-first    

The signal is emitted when the angle between both tracked points changes.

gesture

The gtk-gesture-rotate object which received the signal.

angle

A double float with the current angle in radians.

delta

A double float with the difference with the starting angle, in radians.