Enum ScrollDelta

pub enum ScrollDelta {
    PageDelta(f32, f32),
    LineDelta(f32, f32),
    PixelDelta(PhysicalPosition<f64>),
}

Scroll delta.

Deltas are in a Y-down coordinate system, and represent a ‘navigation’ direction; a positive Y value means that the viewport should move downward relative to the content.

For mouse wheel events, only LineDelta and PixelDelta are typical. For scroll deltas generated by scrollbars or other elements, PageDelta may be used (for example, when clicking in the well of the scrollbar).

Variants

PageDelta(f32, f32)

LineDelta(f32, f32)

PixelDelta(PhysicalPosition<f64>)

Trait Implementations

impl Clone for ScrollDelta

fn clone(&self) -> ScrollDelta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScrollDelta

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

Formats the value using the given formatter.

impl PartialEq for ScrollDelta

fn eq(&self, other: &ScrollDelta) -> 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 ScrollDelta

impl StructuralPartialEq for ScrollDelta