Enum CanvasColor 

#[non_exhaustive]
pub enum CanvasColor {
    Transparent,
    Srgb {
        r: u8,
        g: u8,
        b: u8,
        a: u8,
    },
    Linear {
        r: f32,
        g: f32,
        b: f32,
        a: f32,
    },
}

Canvas background color for pad modes.

Srgb is for user-facing colors in standard sRGB. Linear is for callers already working in linear light (avoids unnecessary color space round-trips during resize). Both carry alpha.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Transparent

Transparent black [0, 0, 0, 0] (premultiplied-alpha convention: RGB channels are zero when alpha is zero).

Srgb

sRGB color with alpha (8-bit per channel).

Fields

r: u8

g: u8

b: u8

a: u8

Linear

Linear RGB color with alpha (unspecified color space).

Fields

r: f32

g: f32

b: f32

a: f32

Implementations

impl CanvasColor

pub const fn white() -> CanvasColor

White, fully opaque.

pub const fn black() -> CanvasColor

Black, fully opaque.

Trait Implementations

impl Clone for CanvasColor

fn clone(&self) -> CanvasColor

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CanvasColor

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for CanvasColor

fn default() -> CanvasColor

Returns the “default value” for a type.

impl Hash for CanvasColor

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CanvasColor

fn eq(&self, other: &CanvasColor) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for CanvasColor

impl Eq for CanvasColor