Function palette::cast::try_from_component_slice_box
source · pub fn try_from_component_slice_box<T>(
values: Box<[<T::Array as ArrayExt>::Item]>,
) -> Result<Box<[T]>, BoxedSliceCastError<<T::Array as ArrayExt>::Item>>where
T: ArrayCast,
Expand description
Cast from a boxed slice of color components to a boxed slice of colors.
§Errors
The cast will return an error if the length of the input slice is not a multiple of the color’s array length.
§Examples
use palette::{cast, Srgb};
let components = vec![64, 139, 10, 93, 18, 214].into_boxed_slice();
assert_eq!(
cast::try_from_component_slice_box::<Srgb<u8>>(components),
Ok(vec![Srgb::new(64u8, 139, 10), Srgb::new(93, 18, 214)].into_boxed_slice())
)
This produces an error:
use palette::{cast, Srgb};
// Not a multiple of 3:
let components = vec![64, 139, 10, 93, 18].into_boxed_slice();
if let Err(error) = cast::try_from_component_slice_box::<Srgb<u8>>(components) {
// We get the original values back on error:
assert_eq!(
error.values,
vec![64, 139, 10, 93, 18].into_boxed_slice()
);
} else {
unreachable!();
}