Create iced_widget subcrate and re-organize the whole codebase
This commit is contained in:
Héctor Ramón Jiménez
parent
c54409d171
commit
3a0d34c024
209 changed files with 1959 additions and 2183 deletions
300
widget/src/radio.rs
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300
widget/src/radio.rs
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//! Create choices using radio buttons.
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use crate::core::alignment;
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use crate::core::event::{self, Event};
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use crate::core::layout;
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use crate::core::mouse;
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use crate::core::renderer;
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use crate::core::text;
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use crate::core::touch;
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use crate::core::widget::Tree;
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use crate::core::{
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Alignment, Clipboard, Color, Element, Layout, Length, Pixels, Point,
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Rectangle, Shell, Widget,
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};
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use crate::{Row, Text};
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pub use iced_style::radio::{Appearance, StyleSheet};
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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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/// # type Radio<Message> =
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/// # iced_widget::Radio<Message, iced_widget::renderer::Renderer<iced_widget::style::Theme>>;
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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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#[allow(missing_debug_implementations)]
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pub struct Radio<Message, Renderer = crate::Renderer>
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where
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Renderer: text::Renderer,
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Renderer::Theme: StyleSheet,
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{
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is_selected: bool,
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on_click: Message,
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label: String,
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width: Length,
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size: f32,
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spacing: f32,
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text_size: Option<f32>,
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font: Option<Renderer::Font>,
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style: <Renderer::Theme as StyleSheet>::Style,
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}
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impl<Message, Renderer> Radio<Message, Renderer>
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where
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Message: Clone,
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Renderer: text::Renderer,
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Renderer::Theme: StyleSheet,
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{
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/// The default size of a [`Radio`] button.
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pub const DEFAULT_SIZE: f32 = 28.0;
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/// The default spacing of a [`Radio`] button.
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pub const DEFAULT_SPACING: f32 = 15.0;
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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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pub fn new<F, V>(
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value: V,
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label: impl Into<String>,
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selected: Option<V>,
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f: F,
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) -> Self
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where
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V: Eq + Copy,
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F: FnOnce(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: label.into(),
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width: Length::Shrink,
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size: Self::DEFAULT_SIZE,
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spacing: Self::DEFAULT_SPACING, //15
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text_size: None,
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font: None,
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style: Default::default(),
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}
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}
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/// Sets the size of the [`Radio`] button.
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pub fn size(mut self, size: impl Into<Pixels>) -> Self {
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self.size = size.into().0;
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self
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}
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/// Sets the width of the [`Radio`] button.
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pub fn width(mut self, width: impl Into<Length>) -> Self {
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self.width = width.into();
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self
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}
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/// Sets the spacing between the [`Radio`] button and the text.
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pub fn spacing(mut self, spacing: impl Into<Pixels>) -> Self {
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self.spacing = spacing.into().0;
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self
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}
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/// Sets the text size of the [`Radio`] button.
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pub fn text_size(mut self, text_size: impl Into<Pixels>) -> Self {
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self.text_size = Some(text_size.into().0);
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self
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}
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/// Sets the text font of the [`Radio`] button.
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pub fn font(mut self, font: impl Into<Renderer::Font>) -> Self {
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self.font = Some(font.into());
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self
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}
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/// Sets the style of the [`Radio`] button.
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pub fn style(
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mut self,
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style: impl Into<<Renderer::Theme as StyleSheet>::Style>,
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) -> Self {
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self.style = style.into();
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self
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}
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}
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impl<Message, Renderer> Widget<Message, Renderer> for Radio<Message, Renderer>
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where
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Message: Clone,
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Renderer: text::Renderer,
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Renderer::Theme: StyleSheet + crate::text::StyleSheet,
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{
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fn width(&self) -> Length {
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self.width
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}
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fn height(&self) -> Length {
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Length::Shrink
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}
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fn layout(
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&self,
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renderer: &Renderer,
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limits: &layout::Limits,
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) -> layout::Node {
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Row::<(), Renderer>::new()
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.width(self.width)
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.spacing(self.spacing)
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.align_items(Alignment::Center)
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.push(Row::new().width(self.size).height(self.size))
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.push(Text::new(&self.label).width(self.width).size(
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self.text_size.unwrap_or_else(|| renderer.default_size()),
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))
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.layout(renderer, limits)
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}
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fn on_event(
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&mut self,
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_state: &mut Tree,
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event: Event,
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layout: Layout<'_>,
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cursor_position: Point,
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_renderer: &Renderer,
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_clipboard: &mut dyn Clipboard,
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shell: &mut Shell<'_, Message>,
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) -> event::Status {
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match event {
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Event::Mouse(mouse::Event::ButtonPressed(mouse::Button::Left))
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| Event::Touch(touch::Event::FingerPressed { .. }) => {
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if layout.bounds().contains(cursor_position) {
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shell.publish(self.on_click.clone());
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return event::Status::Captured;
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}
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}
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_ => {}
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}
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event::Status::Ignored
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}
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fn mouse_interaction(
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&self,
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_state: &Tree,
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layout: Layout<'_>,
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cursor_position: Point,
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_viewport: &Rectangle,
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_renderer: &Renderer,
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) -> mouse::Interaction {
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if layout.bounds().contains(cursor_position) {
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mouse::Interaction::Pointer
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} else {
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mouse::Interaction::default()
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}
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}
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fn draw(
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&self,
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_state: &Tree,
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renderer: &mut Renderer,
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theme: &Renderer::Theme,
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style: &renderer::Style,
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layout: Layout<'_>,
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cursor_position: Point,
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_viewport: &Rectangle,
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) {
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let bounds = layout.bounds();
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let is_mouse_over = bounds.contains(cursor_position);
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let mut children = layout.children();
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let custom_style = if is_mouse_over {
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theme.hovered(&self.style, self.is_selected)
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} else {
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theme.active(&self.style, self.is_selected)
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};
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{
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let layout = children.next().unwrap();
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let bounds = layout.bounds();
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let size = bounds.width;
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let dot_size = size / 2.0;
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renderer.fill_quad(
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renderer::Quad {
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bounds,
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border_radius: (size / 2.0).into(),
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border_width: custom_style.border_width,
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border_color: custom_style.border_color,
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},
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custom_style.background,
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);
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if self.is_selected {
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renderer.fill_quad(
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renderer::Quad {
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bounds: Rectangle {
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x: bounds.x + dot_size / 2.0,
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y: bounds.y + dot_size / 2.0,
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width: bounds.width - dot_size,
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height: bounds.height - dot_size,
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},
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border_radius: (dot_size / 2.0).into(),
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border_width: 0.0,
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border_color: Color::TRANSPARENT,
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},
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custom_style.dot_color,
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);
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}
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}
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{
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let label_layout = children.next().unwrap();
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crate::text::draw(
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renderer,
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style,
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label_layout,
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&self.label,
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self.text_size,
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self.font,
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crate::text::Appearance {
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color: custom_style.text_color,
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},
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alignment::Horizontal::Left,
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alignment::Vertical::Center,
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);
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}
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}
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}
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impl<'a, Message, Renderer> From<Radio<Message, Renderer>>
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for Element<'a, Message, Renderer>
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where
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Message: 'a + Clone,
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Renderer: 'a + text::Renderer,
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Renderer::Theme: StyleSheet + crate::text::StyleSheet,
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{
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fn from(radio: Radio<Message, Renderer>) -> Element<'a, Message, Renderer> {
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Element::new(radio)
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}
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}
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