Struct TweenSimulation 

pub struct TweenSimulation { /* private fields */ }

An eased tween from start to end over a fixed duration (seconds) — see the module docs. Not a port: frust’s own, built from Curve rather than a Flutter source.

Implementations

impl TweenSimulation

pub fn new(start: f64, end: f64, duration: f64, curve: Curve) -> Self

A tween from start to end over duration seconds, eased by curve. A non-positive or non-finite duration (0.0, negative, or NaN, each a caller mistake this never panics on) collapses to a simulation that is immediately TweenSimulation::is_done at end — callers that actually want an instant move should prefer crate::scroll_controller::ScrollController::jump_to, which never constructs a simulation at all.

Trait Implementations

impl Clone for TweenSimulation

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TweenSimulation

impl Debug for TweenSimulation

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

Formats the value using the given formatter.

impl Simulation for TweenSimulation

fn x(&self, time: f64) -> f64

The position at time seconds.

fn dx(&self, time: f64) -> f64

The velocity at time seconds.

fn is_done(&self, time: f64) -> bool

Whether the simulation has settled (within its own tolerance) by time seconds.