Struct OverscrollStretch 

pub struct OverscrollStretch { /* private fields */ }

The stretch along one axis of one scrollable.

Its amount is signed: negative towards the start of the axis (the top, or the left), positive towards the end — the physical edge, whichever way the content scrolls.

Implementations

impl OverscrollStretch

pub fn amount(&self) -> f32

The stretch now, in -1..=1: 0 is the content as it is laid out.

pub fn is_idle(&self) -> bool

Is there nothing to deform and nothing moving?

pub fn pull(&mut self, overscroll: f32, towards_start: bool, extent: f32)

A finger dragged overscroll pixels past the edge (a magnitude), towards the start of the axis or its end, in a viewport extent long.

pub fn absorb_impact(&mut self, velocity: f32, towards_start: bool)

A fling reached the edge at velocity px/s (a magnitude), towards the start or the end: the stretch is thrown that way and springs back.

pub fn release(&mut self)

The gesture is over, or the content moved again: whatever is stretched returns.

pub fn advance(&mut self, dt: f32) -> bool

Advances the spring by dt seconds. Returns true while it is still moving.

Trait Implementations

impl Clone for OverscrollStretch

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 OverscrollStretch

impl Debug for OverscrollStretch

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

Formats the value using the given formatter.

impl Default for OverscrollStretch

fn default() -> Self

Returns the “default value” for a type.