Struct ViewportProximityChange 

pub struct ViewportProximityChange {
    pub previous: Option<ViewportProximitySnapshot>,
    pub current: ViewportProximitySnapshot,
}

A settled geometry change during a continuous proximity visit.

First admission/re-entry has no previous sample. Departure sends one final change outside proximity before exit. Unchanged frames emit nothing.

Fields

previous: Option<ViewportProximitySnapshot>

Last delivered sample in this visit; None on admission/re-entry.

current: ViewportProximitySnapshot

Current frozen geometry, including the terminal outside sample.

Trait Implementations

impl Clone for ViewportProximityChange

fn clone(&self) -> ViewportProximityChange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ViewportProximityChange

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

Formats the value using the given formatter.