Struct MotionSequence 

pub struct MotionSequence<K> { /* private fields */ }

A deterministic sequence of scalar motion steps.

The sequence owns relative timing and frame-demand aggregation, but it does not schedule frames, mutate render state, or know about GPUI elements. Adapters sample it with elapsed time and map the returned values into their own presentation state.

Implementations

impl<K> MotionSequence<K>

pub const fn new() -> Self

Creates an empty sequence.

pub fn steps(&self) -> &[MotionSequenceStep<K>]

Returns the steps in insertion order.

pub fn is_empty(&self) -> bool

Returns whether the sequence has no steps.

pub fn len(&self) -> usize

Returns the number of steps.

pub fn insert_at( &mut self, key: K, model: MotionModel, start_at: Duration, ) -> &mut Self

Inserts a step at an absolute sequence elapsed time.

pub fn append(&mut self, key: K, model: MotionModel) -> &mut Self

Appends a step after the current sequence duration hint.

pub fn insert_with_previous(&mut self, key: K, model: MotionModel) -> &mut Self

Inserts a step at the previous step’s start time.

pub fn insert_after_previous( &mut self, key: K, model: MotionModel, delay: Duration, ) -> &mut Self

Inserts a step after the previous step’s end hint plus delay.

pub fn insert_staggered( &mut self, keys: impl IntoIterator<Item = K>, model: MotionModel, start_at: Duration, stagger: Duration, ) -> &mut Self

Inserts many steps with a fixed stagger from a start time.

pub fn duration_hint(&self) -> Duration

Returns the sequence duration hint from the latest step end hint.

impl<K: Clone> MotionSequence<K>

pub fn sample_at(&self, elapsed: Duration) -> MotionSequenceSample<K>

Samples all steps at sequence elapsed time.

Trait Implementations

impl<K: Clone> Clone for MotionSequence<K>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<K: Debug> Debug for MotionSequence<K>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<K> Default for MotionSequence<K>

fn default() -> Self

Returns the “default value” for a type.

impl<K: PartialEq> PartialEq for MotionSequence<K>

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl<K: PartialEq> StructuralPartialEq for MotionSequence<K>