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

None

The gtk:gesture-swipe object is a gtk:gesture implementation able to recognize swipes, after a press/move/.../move/release sequence happens, the "swipe" signal will be emitted, providing the velocity and directionality of the sequence at the time it was lifted.

If the velocity is desired in intermediate points, the gtk:gesture-swipe-velocity function can be called on, for example, a "update" handler.

All velocities are reported in pixels/sec units.

The "swipe" signal

lambda (gesture xvelocity yvelocity)    :run-last    

gesture

The gtk:gesture-multi-press object which received the signal.

xvelocity

The double float with the velocity in the x axis, in pixels/sec.

yvelocity

The double float with the velocity in the y axis, in pixels/sec.

The signal is emitted when the recognized gesture is finished, velocity and direction are a product of previously recorded events.