Struct ScrollMetrics 

pub struct ScrollMetrics {
    pub offset: f32,
    pub max_offset: f32,
    pub viewport_extent: f32,
}

A scroll position and the extents it is measured against, read together.

Fields

offset: f32

How far the content has travelled, in logical pixels.

max_offset: f32

The furthest it can travel. Zero when the content fits.

viewport_extent: f32

How much of the content is on screen.

Implementations

impl ScrollMetrics

pub fn content_extent(self) -> f32

The whole scrollable content along the main axis.

pub fn progress(self) -> f32

How far through the scroll the content is, in 0..=1.

pub fn thumb(self, bounds: ThumbBounds) -> Option<ThumbGeometry>

The thumb an indicator of this scroll should draw, given how short its thumb may get, or None when the content fits.

Trait Implementations

impl Clone for ScrollMetrics

fn clone(&self) -> ScrollMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ScrollMetrics

impl Debug for ScrollMetrics

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

Formats the value using the given formatter.

impl PartialEq for ScrollMetrics

fn eq(&self, other: &ScrollMetrics) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ScrollMetrics