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Fix ColorKey Display overflow on huge negative Lab a/b

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Found while testing crates/color/src/recolor.rs:72 (Display for ColorKey)

Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
NetterSilver
2026-10-29 08:44:39 +07:00
committed by bflatastic
co-authored by Claude Haiku 5.5
parent 4c4113096c
commit c2fb35b244
1 changed files with 9 additions and 1 deletions
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crates/color/src/recolor.rs
+9 -1
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@@ -69,7 +69,7 @@ impl fmt::Display for ColorKey {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
// Components are hundredths of the written units: exact with two decimals.
let num = |q: i32| {
let s = format!("{}{}.{:02}", if q < 0 { "-" } else { "" }, q.abs() / 100, q.abs() % 100);
let s = format!("{}{}.{:02}", if q < 0 { "-" } else { "" }, q.unsigned_abs() / 100, q.unsigned_abs() % 100);
s.trim_end_matches('0').trim_end_matches('.').to_string()
};
let [a, b, c, k] = self.v.map(num);
@@ -461,6 +461,14 @@ impl Rng {
mod tests {
use super::*;
#[test]
fn key_display_survives_saturated_lab() {
for text in ["lab 50 -1e20 0", "lab 50 0 -1e20", "lab 50 1e20 0"] {
let k = ColorKey::parse(text).unwrap();
assert_eq!(ColorKey::parse(&k.to_string()), Some(k), "{text}");
}
}
fn close(a: Color, b: Color) -> bool {
let v = |c: Color| match c {
Color::Cmyk { c, m, y, k } => vec![c, m, y, k],