Struct Slider 

pub struct Slider {
    pub value: f32,
    pub min: f32,
    pub max: f32,
    /* private fields */
}

A horizontal slider — brought to the Quality Bar (matches the Switch exemplar; see .steering/WIDGET_QUALITY_BAR.md).

• States — idle · hover (thumb grows) · pressed/dragging (grows more) · focus-visible (ring) · disabled (dimmed, inert).
• Motion — the fill + thumb track the value instantly (they follow the finger, never lag); the thumb’s grow and its hover/press/focus state-layer halo ease smoothly on their own channels.
• Elevation — the bright knob casts a soft shadow over a rounded pill track with a colored fill.
• A11y — Role::Slider with the current value; drag works through the engine’s positional press (interactive-by-identity — an unwired slider still absorbs so it can’t pan a scroll view behind it).

Fields

value: f32

min: f32

max: f32

Implementations

impl Slider

pub fn new(value: f32) -> Self

pub fn range(self, min: f32, max: f32, value: f32) -> Self

pub fn width(self, w: f32) -> Self

pub fn height(self, h: f32) -> Self

pub fn disabled(self) -> Self

pub fn disabled_if(self, c: bool) -> Self

pub fn track_color(self, c: Color) -> Self

pub fn fill_color(self, c: Color) -> Self

pub fn thumb_color(self, c: Color) -> Self

pub fn on_change(self, f: impl Fn(f32) + Send + Sync + 'static) -> Self

Called with the new value (in min..max) on click or drag.

Trait Implementations

impl Widget for Slider

fn layout(&self, ctx: &LayoutCtx<'_>) -> Size

Measure under ctx.constraints and return a size within them.

fn paint(&self, ctx: &mut PaintCtx<'_>)

Record draw commands for ctx.rect.

fn children(&self) -> Children<'_>

Declare this widget’s children. Drives every default below.

fn flex_factor(&self) -> f32

Flex weight inside Row/Column. Wrappers are transparent by default.

fn into_element(self) -> Element

where Self: Sized + 'static,

Wrap this widget in an Element so it can be returned from Component::build().