Struct ScrollBallistic 

pub struct ScrollBallistic {
    pub x: Option<Ballistic>,
    pub y: Option<Ballistic>,
    pub elapsed: f32,
}

The fling in flight on one scroll region: one simulation per axis, and the time elapsed since the finger let go.

The two axes share a clock — they were launched by the same gesture — and either may be None, since a fling usually runs on one axis only. The whole thing is Copy, so sampling it costs no allocation.

Fields

x: Option<Ballistic>

The fling along the x axis, if there is one.

y: Option<Ballistic>

The fling along the y axis, if there is one.

elapsed: f32

Seconds since the release.

Implementations

impl ScrollBallistic

pub fn new(x: Option<Ballistic>, y: Option<Ballistic>) -> Self

A fling on both axes at once (either may be None), starting now.

pub fn is_empty(&self) -> bool

Is there anything left to run?

Trait Implementations

impl Clone for ScrollBallistic

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 ScrollBallistic

impl Debug for ScrollBallistic

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

Formats the value using the given formatter.

impl Default for ScrollBallistic

fn default() -> Self

Returns the “default value” for a type.