Struct ScaleEvent 

pub struct ScaleEvent {
    pub phase: ScalePhase,
    pub scale_delta: f64,
    pub focal: Point,
    pub velocity: f64,
}

A pinch/zoom event — InputEvent::Scroll’s hit-tested sibling, carrying a multiplicative delta and a focal point.

Fields

phase: ScalePhase

scale_delta: f64

This event’s multiplicative change, not a running total: 1.0 is a no-op.

focal: Point

The fixed point of the zoom, in local logical space; translated like a pointer position.

velocity: f64

Rate of scale change per second; 0.0 from every shipped source, which reports none.

Trait Implementations

impl Clone for ScaleEvent

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 ScaleEvent

impl Debug for ScaleEvent

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

Formats the value using the given formatter.

impl PartialEq for ScaleEvent

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ScaleEvent