Struct ExpressionAnimationInstance 

pub struct ExpressionAnimationInstance { /* private fields */ }

Server-side counterpart of ExpressionAnimation with values baked-in.

Implementations

impl ExpressionAnimationInstance

pub fn new( expression: Arc<Expression>, target: ServerObjectId, final_value: Option<ExpressionVariant>, parameters: Rc<PropertySetSnapshot>, ) -> Rc<ExpressionAnimationInstance>

pub fn set_initial_value_expressions( &self, expressions: Vec<(String, Expression)>, )

Sets the initial value expressions of the animation, applied to the target when the instance is initialized.

Trait Implementations

impl IAnimationInstance for ExpressionAnimationInstance

fn target_object(&self) -> ServerObjectId

The object whose property is animated.

fn resolve(&self, compositor: &Rc<ServerCompositor>)

Resolves the server objects the instance refers to by id, on the compositor that drives it. Called once, on the server, before the instance is initialized; an instance that refers to no object needs nothing.

fn evaluate( &self, now: Duration, current_value: ExpressionVariant, ) -> ExpressionVariant

The value of the animation at now.

fn initialize( &self, _started_at: Duration, starting_value: ExpressionVariant, property: &'static CompositionProperty, )

Attaches the instance to the property it animates.

fn activate(&self)

fn deactivate(&self)

fn invalidate(&self)

fn value_on_stop( &self, _current_value: ExpressionVariant, ) -> Option<ExpressionVariant>

The value the animated property is set to when the animation is stopped by StopAnimation (its stop behavior), given the current value of the property; None leaves the current value.

fn release_completion(&self)

Tells the batches the animation belongs to that it is over (it is stopped, replaced or its target is disposed). Releasing again does nothing; an animation that belongs to no batch does nothing.

fn attach_controller(&self, _controller: ServerObjectId)

Puts the instance under the control of an AnimationController, named by the id of the controller’s property set: from now on the controller pauses, resumes, scrubs and speeds up the animation; if the progress of the controller was assigned, the animation moves there at its next evaluation. An instance that cannot be controlled (an expression animation) ignores it.

fn as_subchannel(&self) -> Option<&SubchannelAnimationInstance>

The instance as an animation of components of its property (Offset.X), if it is one: such animations of one property are merged on the server.

impl IServerClockItem for ExpressionAnimationInstance

fn on_tick(&self)