Struct ScrollMetrics 

pub struct ScrollMetrics {
    pub content: f64,
    pub viewport: f64,
    pub offset: f64,
}

The scroll geometry along one axis, all lengths in logical px.

content is the full scrollable extent, viewport the visible window, and offset the current scroll position (0 = start). The offset is not assumed pre-clamped — every derived quantity clamps defensively.

Fields

content: f64

viewport: f64

offset: f64

Implementations

impl ScrollMetrics

pub fn new(content: f64, viewport: f64, offset: f64) -> ScrollMetrics

pub fn max_scroll(&self) -> f64

The maximum reachable offset — how far the content can travel past the viewport. Zero when the content fits.

pub fn overflows(&self) -> bool

Whether the content overflows the viewport by more than FIT_EPS (i.e. a bar is worth showing).

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 Debug for ScrollMetrics

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

Formats the value using the given formatter.

impl PartialEq for ScrollMetrics

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ScrollMetrics

impl StructuralPartialEq for ScrollMetrics