Struct coffee::ui::widget::slider::Slider

pub struct Slider<'a, Message> { /* fields omitted */ }

An horizontal bar and a handle that selects a single value from a range of values.

A Slider will try to fill the horizontal space of its container.

It implements Widget when the associated core::Renderer implements the slider::Renderer trait.

Example

use coffee::ui::{slider, Slider};

pub enum Message {
    SliderChanged(f32),
}

let state = &mut slider::State::new();
let value = 50.0;

Slider::new(state, 0.0..=100.0, value, Message::SliderChanged);

Implementations

impl<'a, Message> Slider<'a, Message>

pub fn new<F>(
    state: &'a mut State,
    range: RangeInclusive<f32>,
    value: f32,
    on_change: F
) -> Self where
    F: 'static + Fn(f32) -> Message, 

Creates a new Slider.

It expects:

• the local State of the Slider
• an inclusive range of possible values
• the current value of the Slider
• a function that will be called when the Slider is dragged. It receives the new value of the Slider and must produce a Message.

pub fn width(self, width: u32) -> Self

Sets the width of the Slider in pixels.

Trait Implementations

impl<'a, Message> Debug for Slider<'a, Message>

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

Formats the value using the given formatter.

impl<'a, Message, Renderer> From<Slider<'a, Message>> for Element<'a, Message, Renderer> where
    Renderer: Renderer,
    Message: 'static, 

fn from(slider: Slider<'a, Message>) -> Element<'a, Message, Renderer>

Performs the conversion.

impl<'a, Message, Renderer> Widget<Message, Renderer> for Slider<'a, Message> where
    Renderer: Renderer, 

fn node(&self, _renderer: &Renderer) -> Node

Returns the [Node] of the [Widget].

fn on_event(
    &mut self,
    event: Event,
    layout: Layout,
    cursor_position: Point,
    messages: &mut Vec<Message>
)

Processes a runtime [Event].

fn draw(
    &self,
    renderer: &mut Renderer,
    layout: Layout,
    cursor_position: Point
) -> MouseCursor

Draws the [Widget] using the associated Renderer.

fn hash(&self, state: &mut Hasher)

Computes the layout hash of the [Widget].