thedes_tui_core/
tile.rs

1use std::convert::Infallible;
2
3use thiserror::Error;
4
5use crate::{
6    color::{ColorPair, mutation::ColorMutationError},
7    grapheme,
8    mutation::{Mutable, Mutation},
9};
10
11#[derive(Debug, Error)]
12pub enum TileMutationError {
13    #[error("Failed to mutate color")]
14    Color(
15        #[source]
16        #[from]
17        ColorMutationError,
18    ),
19}
20
21impl From<Infallible> for TileMutationError {
22    fn from(error: Infallible) -> Self {
23        match error {}
24    }
25}
26
27#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
28pub struct Tile {
29    pub colors: ColorPair,
30    pub grapheme: grapheme::Id,
31}
32
33impl Default for Tile {
34    fn default() -> Self {
35        Self { colors: ColorPair::default(), grapheme: grapheme::Id::from(' ') }
36    }
37}
38
39impl Mutable for Tile {
40    type Error = TileMutationError;
41}
42
43impl Mutable for grapheme::Id {
44    type Error = Infallible;
45}
46
47#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
48pub struct MutateColors<M>(pub M);
49
50impl<M> Mutation<Tile> for MutateColors<M>
51where
52    M: Mutation<ColorPair>,
53{
54    fn mutate(
55        self,
56        mut target: Tile,
57    ) -> Result<Tile, <Tile as Mutable>::Error> {
58        let Self(mutation) = self;
59        target.colors = mutation.mutate(target.colors)?;
60        Ok(target)
61    }
62}
63
64#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
65pub struct MutateGrapheme<M>(pub M);
66
67impl<M> Mutation<Tile> for MutateGrapheme<M>
68where
69    M: Mutation<grapheme::Id>,
70{
71    fn mutate(
72        self,
73        mut target: Tile,
74    ) -> Result<Tile, <Tile as Mutable>::Error> {
75        let Self(mutation) = self;
76        target.grapheme = mutation.mutate(target.grapheme)?;
77        Ok(target)
78    }
79}
thedes_tui_core/tile.rs

thedes_tui_core/
tile.rs
