Struct ViewportProximitySnapshot 

pub struct ViewportProximitySnapshot {
    pub in_proximity: bool,
    pub bounds: Rect,
    pub viewport_intersection: Option<Rect>,
}

One settled viewport-proximity sample in logical window coordinates.

Bounds are transformed layout AABBs, not padded paint coverage. Rectangular clips are intersected; curved/rotated clips use their bounding envelopes. Opacity, alpha coverage, sibling occlusion and external windows are ignored.

Fields

in_proximity: bool

Whether the target intersects the proximity region with positive area.

bounds: Rect

Presented layout bounds relative to the global visual viewport’s origin.

viewport_intersection: Option<Rect>

Positive-area intersection with the global viewport and ancestor clips.

Implementations

impl ViewportProximitySnapshot

pub fn is_in_viewport(&self) -> bool

Whether any positive-area viewport intersection exists.

pub fn intersection_ratio(&self) -> f64

Fraction of the layout AABB inside the effective viewport, from zero to one.

Trait Implementations

impl Clone for ViewportProximitySnapshot

fn clone(&self) -> ViewportProximitySnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ViewportProximitySnapshot

impl Debug for ViewportProximitySnapshot

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

Formats the value using the given formatter.

impl PartialEq for ViewportProximitySnapshot

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ViewportProximitySnapshot