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3a84de32ac
Also remove hard-coded-in-Vue Graphite logo in the menu bar in favor of a Rust definition.
61 lines
1.4 KiB
Rust
61 lines
1.4 KiB
Rust
use crate::Node;
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use self::color::Color;
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pub mod color;
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#[derive(Debug, Clone, Copy)]
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pub struct GrayscaleNode;
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impl Node<Color> for GrayscaleNode {
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type Output = Color;
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fn eval(self, color: Color) -> Color {
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let avg = (color.r() + color.g() + color.b()) / 3.0;
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Color::from_rgbaf32_unchecked(avg, avg, avg, color.a())
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}
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}
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impl<'n> Node<Color> for &'n GrayscaleNode {
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type Output = Color;
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fn eval(self, color: Color) -> Color {
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let avg = (color.r() + color.g() + color.b()) / 3.0;
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Color::from_rgbaf32_unchecked(avg, avg, avg, color.a())
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}
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}
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pub struct ForEachNode<MN>(pub MN);
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impl<'n, I: Iterator<Item = S>, MN: 'n, S> Node<I> for &'n ForEachNode<MN>
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where
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&'n MN: Node<S, Output = ()>,
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{
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type Output = ();
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fn eval(self, input: I) -> Self::Output {
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input.for_each(|x| (&self.0).eval(x))
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}
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}
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/*pub struct MutWrapper<N>(pub N);
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impl<'n, T: Clone, N> Node<&'n mut T> for &'n MutWrapper<N>
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where
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&'n N: Node<T, Output = T>,
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{
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type Output = ();
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fn eval(self, value: &'n mut T) {
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*value = (&self.0).eval(value.clone());
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}
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}*/
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn map_node() {
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// let array = &mut [Color::from_rgbaf32(1.0, 0.0, 0.0, 1.0).unwrap()];
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(&GrayscaleNode).eval(Color::from_rgbf32_unchecked(1., 0., 0.));
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/*let map = ForEachNode(MutWrapper(GrayscaleNode));
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(&map).eval(array.iter_mut());
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assert_eq!(array[0], Color::from_rgbaf32(0.33333334, 0.33333334, 0.33333334, 1.0).unwrap());*/
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}
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}
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