Struct coffee::ui::widget::radio::Radio

pub struct Radio<Message> { /* fields omitted */ }

A circular button representing a choice.

It implements Widget when the core::Renderer implements the radio::Renderer trait.

Example

use coffee::graphics::Color;
use coffee::ui::{Column, Radio};

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum Choice {
    A,
    B,
}

#[derive(Debug, Clone, Copy)]
pub enum Message {
    RadioSelected(Choice),
}

let selected_choice = Some(Choice::A);

Column::new()
    .spacing(20)
    .push(
        Radio::new(Choice::A, "This is A", selected_choice, Message::RadioSelected)
            .label_color(Color::BLACK),
    )
    .push(
        Radio::new(Choice::B, "This is B", selected_choice, Message::RadioSelected)
            .label_color(Color::BLACK),
    );

Implementations

impl<Message> Radio<Message>

pub fn new<F, V>(value: V, label: &str, selected: Option<V>, f: F) -> Self where
    V: Eq + Copy,
    F: 'static + Fn(V) -> Message, 

Creates a new Radio button.

It expects:

• the value related to the Radio button
• the label of the Radio button
• the current selected value
• a function that will be called when the Radio is selected. It receives the value of the radio and must produce a Message.

pub fn label_color(self, color: Color) -> Self

Sets the Color of the label of the Radio.

Trait Implementations

impl<Message> Debug for Radio<Message> where
    Message: Debug, 

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

Formats the value using the given formatter.

impl<'a, Message, Renderer> From<Radio<Message>> for Element<'a, Message, Renderer> where
    Renderer: Renderer + Renderer,
    Message: 'static + Copy + Debug, 

fn from(checkbox: Radio<Message>) -> Element<'a, Message, Renderer>

Performs the conversion.

impl<Message, Renderer> Widget<Message, Renderer> for Radio<Message> where
    Renderer: Renderer + Renderer,
    Message: Copy + Debug, 

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].