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use crate::{err::Error, file::Build};
use arctk_attr::load;
use palette::LinSrgba;
use std::path::Path;
#[load]
pub struct GradientBuilder(
Vec<String>,
);
impl Build for GradientBuilder {
type Inst = palette::Gradient<LinSrgba>;
#[inline]
fn build(self, _in_dir: &Path) -> Result<Self::Inst, Error> {
let mut cols = Vec::with_capacity(self.0.len());
for col in self.0 {
let col_arr = hex::decode(col.replace("#", ""))?;
let r = f32::from(col_arr[0]) / 255.0;
let g = f32::from(col_arr[1]) / 255.0;
let b = f32::from(col_arr[2]) / 255.0;
let a = f32::from(col_arr[3]) / 255.0;
cols.push(LinSrgba::new(r, g, b, a));
}
Ok(Self::Inst::new(cols))
}
}