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More compact `Debug` formatting of `Color32` (#5162) 

Especially when using the verbose `{:#?}`, which before would result in

```
Color32([
    255,
    0,
    0,
    255
])
```

but now becomes `#ff_00_00_ff`
This commit is contained in:
Emil Ernerfeldt 2024-09-25 11:14:44 +02:00 committed by GitHub
parent 1603f05818
commit 9ef4d02ab8
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1 changed files with 8 additions and 1 deletions
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9
crates/ecolor/src/color32.rs
View File

@ -10,11 +10,18 @@ use crate::{fast_round, linear_f32_from_linear_u8, Rgba};
///
/// The special value of alpha=0 means the color is to be treated as an additive color.
#[repr(C)]
#[derive(Clone, Copy, Debug, Default, Eq, Hash, PartialEq)]
#[derive(Clone, Copy, Default, Eq, Hash, PartialEq)]
#[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
#[cfg_attr(feature = "bytemuck", derive(bytemuck::Pod, bytemuck::Zeroable))]
pub struct Color32(pub(crate) [u8; 4]);
impl std::fmt::Debug for Color32 {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let [r, g, b, a] = self.0;
write!(f, "#{r:02X}_{g:02X}_{b:02X}_{a:02X}")
}
}
impl std::ops::Index<usize> for Color32 {
type Output = u8;