Struct gravitas::Pager

pub struct Pager { /* fields omitted */ }

Pager is similar to Scroll, except it contains user supplied snap points which the simulation will be attracted to. These snap points are supplied to the constructor.

Methods

impl Pager

pub fn new(snap_points: &[SnapPoint]) -> Pager

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 query(&self, x: f32) -> SnapQuery

Figure out which snap points the given position is between. This can be used by external callers to determine if they are in an "overdrag" case where they should damp movement or not.

pub fn jump_to(&mut self, position: f32, time: f32)

Jump to a position with an animation.

Trait Implementations

impl Clone for Pager

fn clone(&self) -> Pager

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Simulation for Pager

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).