Struct Slider 

pub struct Slider {
    pub id: Option<NodeId>,
    pub value: f32,
    pub min: f32,
    pub max: f32,
    pub on_change: Option<ActionEnvelope>,
}

A continuous value selector rendered as a horizontal track with a draggable thumb.

The thumb position is determined by value within the [min, max] range. Dragging dispatches the on_change action with the new value carried as pointer input (see [ActionInput::as_pointer]).

Example

Slider {
    value: view.state.volume,
    min: 0.0,
    max: 1.0,
    on_change: Some(ctx.bind(
        VolumeChanged,
        handle_volume as fn(&mut S, VolumeChanged),
    )),
    ..Default::default()
}

Fields

id: Option<NodeId>

Explicit node identity.

value: f32

Current value (clamped to [min, max]).

min: f32

Minimum value (default: 0.0).

max: f32

Maximum value (default: 1.0).

on_change: Option<ActionEnvelope>

Action dispatched when the user drags the thumb.

Implementations

impl Slider

pub fn into_node(self) -> Node

Trait Implementations

impl Clone for Slider

fn clone(&self) -> Slider

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Slider

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

Formats the value using the given formatter.

impl Default for Slider

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Slider

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<Slider> for Node

fn from(w: Slider) -> Self

Converts to this type from the input type.

impl Lower for Slider

fn lower(&self, cx: &mut LoweringContext<'_>) -> NodeId

Lower this widget into the IR, returning the root node id.

impl Serialize for Slider

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<S: AppState> Widget<S> for Slider

fn build(&self, _ctx: &mut BuildCtx<S>, _view: &View<'_, S>) -> Node

Build the widget’s node tree.