plotters_backend/
style.rs

1/// The color type that is used by all the backend
2#[derive(Clone, Copy)]
3pub struct BackendColor {
4    pub alpha: f64,
5    pub rgb: (u8, u8, u8),
6}
7
8impl BackendColor {
9    #[inline(always)]
10    pub fn mix(&self, alpha: f64) -> Self {
11        Self {
12            alpha: self.alpha * alpha,
13            rgb: self.rgb,
14        }
15    }
16}
17
18/// The style data for the backend drawing API
19pub trait BackendStyle {
20    /// Get the color of current style
21    fn color(&self) -> BackendColor;
22
23    /// Get the stroke width of current style
24    fn stroke_width(&self) -> u32 {
25        1
26    }
27}
28
29impl BackendStyle for BackendColor {
30    fn color(&self) -> BackendColor {
31        *self
32    }
33}