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|
//! Allow your users to perform actions by pressing a button.
//!
//! A [`Button`] has some local [`State`].
//!
//! [`Button`]: type.Button.html
//! [`State`]: struct.State.html
use crate::Renderer;
use iced_native::{Background, Color};
pub use iced_native::button::State;
/// A widget that produces a message when clicked.
///
/// This is an alias of an `iced_native` button with an `iced_wgpu::Renderer`.
pub type Button<'a, Message> = iced_native::Button<'a, Message, Renderer>;
#[derive(Debug)]
pub struct Style {
pub shadow_offset: f32,
pub background: Option<Background>,
pub border_radius: u16,
pub text_color: Color,
}
pub trait StyleSheet {
fn active(&self) -> Style;
fn hovered(&self) -> Style {
let active = self.active();
Style {
shadow_offset: active.shadow_offset + 1.0,
..active
}
}
fn pressed(&self) -> Style {
Style {
shadow_offset: 0.0,
..self.active()
}
}
fn disabled(&self) -> Style {
let active = self.active();
Style {
shadow_offset: 0.0,
background: active.background.map(|background| match background {
Background::Color(color) => Background::Color(Color {
a: color.a * 0.5,
..color
}),
}),
text_color: Color {
a: active.text_color.a * 0.5,
..active.text_color
},
..active
}
}
}
struct Default;
impl StyleSheet for Default {
fn active(&self) -> Style {
Style {
shadow_offset: 1.0,
background: Some(Background::Color([0.5, 0.5, 0.5].into())),
border_radius: 5,
text_color: Color::BLACK,
}
}
}
impl std::default::Default for Box<dyn StyleSheet> {
fn default() -> Self {
Box::new(Default)
}
}
impl<T> From<T> for Box<dyn StyleSheet>
where
T: 'static + StyleSheet,
{
fn from(style: T) -> Self {
Box::new(style)
}
}
|
