Struct Knob 

pub struct Knob<T>
where
    T: NormalizedMap,
{
    pub normalized_value: f32,
    pub map: T,
    /* private fields */
}

Fields

normalized_value: f32

map: T

Implementations

impl<T> Knob<T>

where T: NormalizedMap,

pub fn new(map: T, normalized_default: f32) -> Knob<T>

pub fn map(&self) -> &T

pub fn on_changing<F>(self, callback: F) -> Knob<T>

where F: 'static + Fn(&mut Knob<T>, &mut State, Entity),

Set the callback triggered when the slider value is changing (dragging).

Takes a closure which triggers when the slider value is changing, either by pressing the track or dragging the thumb along the track.

Example

Slider::new()
    .on_changing(|slider, state, entity| {
        entity.emit(WindowEvent::Debug(format!("Slider on_changing: {}", slider.value)));
    })
    .build(state, parent, |builder| builder);

pub fn set_centered(self, val: bool) -> Knob<T>

Trait Implementations

impl<T> Widget for Knob<T>

where T: NormalizedMap,

type Ret = Entity

type Data = f32

fn on_build( &mut self, state: &mut State, entity: Entity, ) -> <Knob<T> as Widget>::Ret

fn on_update( &mut self, state: &mut State, _entity: Entity, data: &<Knob<T> as Widget>::Data, )

fn on_event(&mut self, state: &mut State, entity: Entity, event: &mut Event)

fn widget_name(&self) -> String

fn build<F>( self, state: &mut State, parent: impl AsEntity, builder: F, ) -> Self::Ret

where F: FnMut(Builder<'_, Self>) -> Builder<'_, Self>, Self: Sized + 'static,

Adds the widget into state and returns the associated type Ret - an entity id or a tuple of entity ids

fn bind<L, F>(self, lens: L, converter: F) -> Wrapper<L, Self>

where L: Lens, F: 'static + Fn(&<L as Lens>::Target) -> Self::Data,

fn bind2<L>(self, lens: L) -> LensWrap<L, Self>

where L: Lens,

fn on_style( &mut self, state: &mut State, entity: Entity, property: (String, PropType), )

fn on_draw( &mut self, state: &mut State, entity: Entity, canvas: &mut Canvas<OpenGl>, )