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pub mod blend;
pub mod papermate;
pub mod posca;
use std::hash::Hash;
use palette::rgb::LinSrgb;
use palette::{Hsl, Lab};
pub trait Pen: Clone + Eq + PartialEq + Hash {
fn available_colors() -> Vec<Self>;
fn nib_size_mm() -> f64;
fn rgb_color(&self) -> LinSrgb;
fn hsl_color(&self) -> Hsl {
self.rgb_color().into()
}
fn lab_color(&self) -> Lab {
self.rgb_color().into()
}
fn closest_pen_to_color(icolor: Lab) -> Self {
let available_pens = Self::available_colors();
let (l, a, b) = icolor.into_components();
let mut closest = available_pens[0].clone();
let mut mindist = std::f32::MAX;
for pen in available_pens {
let (pl, pa, pb) = pen.lab_color().into_components();
let dist = ((pl - l).powi(2) + (pa - a).powi(2) + (pb - b).powi(2)).sqrt();
if dist < mindist {
mindist = dist;
closest = pen.clone();
}
}
closest
}
fn rgb_pixel(&self) -> (u8, u8, u8) {
let (r, g, b) = self.rgb_color().into_components();
((r * 255.0) as u8, (g * 255.0) as u8, (b * 255.0) as u8)
}
}