Struct gravitas::Scroll

pub struct Scroll { /* fields omitted */ }

a combination of friction and springs to create a touch-driven scrolling simulation.

Gravitas JavaScript example of the scrolling simulation.

Methods

impl Scroll

pub fn new(extent: f32) -> Scroll

Create a new scroll simulation which allows scrolls between 0 and the given extent.

pub fn set(&mut self, x: f32, v: f32)

Start a gesture-based scroll from the scroll position x with velocity v.

pub fn extent(&self) -> f32

Return the maximum extent which can be scrolled to.

Trait Implementations

impl Simulation for Scroll

fn x(&self, time: f32) -> f32

Return the position for the given time (in seconds).

fn dx(&self, time: f32) -> f32

Return the velocity for the given time (in seconds).

fn is_done(&self, time: f32) -> bool

Return true if the simulation has reached a final position at the given time (in seconds).

impl Clone for Scroll

fn clone(&self) -> Scroll

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Scroll