Enum DragModifier 

pub enum DragModifier {
    LockAxis {
        horizontal: bool,
        vertical: bool,
    },
    Snap {
        x: f64,
        y: f64,
    },
    KeepInside,
}

A single constraint on a proposed drag position.

Variants

LockAxis

Zero out movement on locked axes. horizontal: false freezes X.

Fields

horizontal: bool

Allow horizontal movement.

vertical: bool

Allow vertical movement.

Snap

Snap each axis to a grid step; a step <= 0 leaves that axis alone.

Fields

x: f64

y: f64

KeepInside

Clamp so the element (its ModifierCtx::element size) stays inside ModifierCtx::container. No-op when either rect is missing. If the element is larger than the container on an axis, it pins to the container’s origin on that axis.

Implementations

impl DragModifier

pub fn apply(self, p: Point, ctx: &ModifierCtx) -> Point

Apply this modifier to a proposed top-left position.

Trait Implementations

impl Clone for DragModifier

fn clone(&self) -> DragModifier

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DragModifier

impl Debug for DragModifier

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

Formats the value using the given formatter.

impl PartialEq for DragModifier

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DragModifier