Clutter (toolkit) - Animation

Animation

Clutter allows implicit animations of every item on the canvas using special objects called behaviours: each behaviour can be applied to multiple actors, and multiple behaviours can be composed on the same actor. Behaviours handle animations implicitly: the developer specifies the initial and final states, the time (or number of frames) needed to complete the animation, the function of time to be used (linear, sine wave, exponential, etc.), and the behaviour will take care of the tweening. Clutter provides a generic base class for developers to implement custom behaviours, and various simple classes handling simple properties, like opacity, position on the Z axis (depth), position along a path, rotation, etc.

Since Clutter 1.0, it is also possible to create simple, one-off animations using the ClutterAnimation class and the clutter_actor_animate convenience function. The clutter_actor_animate function animates an actor properties between their current state and the specified final state.