88 lines
2.4 KiB
Rust
88 lines
2.4 KiB
Rust
//! Create choices using radio buttons.
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use crate::Color;
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/// A circular button representing a choice.
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///
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/// # Example
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/// ```
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/// use iced_core::Radio;
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///
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/// #[derive(Debug, Clone, Copy, PartialEq, Eq)]
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/// pub enum Choice {
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/// A,
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/// B,
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/// }
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///
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/// #[derive(Debug, Clone, Copy)]
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/// pub enum Message {
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/// RadioSelected(Choice),
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/// }
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///
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/// let selected_choice = Some(Choice::A);
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///
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/// Radio::new(Choice::A, "This is A", selected_choice, Message::RadioSelected);
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///
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/// Radio::new(Choice::B, "This is B", selected_choice, Message::RadioSelected);
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/// ```
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///
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/// 
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pub struct Radio<Message> {
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/// Whether the radio button is selected or not
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pub is_selected: bool,
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/// The message to produce when the radio button is clicked
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pub on_click: Message,
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/// The label of the radio button
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pub label: String,
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/// The color of the label
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pub label_color: Option<Color>,
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}
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impl<Message> std::fmt::Debug for Radio<Message>
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where
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Message: std::fmt::Debug,
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{
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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f.debug_struct("Radio")
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.field("is_selected", &self.is_selected)
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.field("on_click", &self.on_click)
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.field("label", &self.label)
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.field("label_color", &self.label_color)
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.finish()
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}
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}
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impl<Message> Radio<Message> {
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/// Creates a new [`Radio`] button.
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///
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/// It expects:
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/// * the value related to the [`Radio`] button
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/// * the label of the [`Radio`] button
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/// * the current selected value
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/// * a function that will be called when the [`Radio`] is selected. It
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/// receives the value of the radio and must produce a `Message`.
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///
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/// [`Radio`]: struct.Radio.html
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pub fn new<F, V>(value: V, label: &str, selected: Option<V>, f: F) -> Self
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where
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V: Eq + Copy,
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F: 'static + Fn(V) -> Message,
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{
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Radio {
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is_selected: Some(value) == selected,
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on_click: f(value),
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label: String::from(label),
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label_color: None,
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}
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}
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/// Sets the `Color` of the label of the [`Radio`].
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///
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/// [`Radio`]: struct.Radio.html
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pub fn label_color<C: Into<Color>>(mut self, color: C) -> Self {
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self.label_color = Some(color.into());
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self
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}
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}
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