Struct Color 

pub struct Color {
    pub r: u8,
    pub g: u8,
    pub b: u8,
    pub a: u8,
}

A colour: three eight-bit channels and an eight-bit alpha, where 255 is opaque.

Serialization has two forms, #rrggbb where a person reads it and the four bytes on the wire. A colour that is not opaque reads as #rrggbbaa.

Fields

r: u8

Red channel.

g: u8

Green channel.

b: u8

Blue channel.

a: u8

Alpha: 0 is transparent and 255 is opaque.

Implementations

impl Color

pub const BLACK: Color

What a page is set in until a rule sets something else.

pub const fn rgb(r: u8, g: u8, b: u8) -> Color

An opaque colour from its three channels.

pub const fn rgba(r: u8, g: u8, b: u8, a: u8) -> Color

A colour from its three channels and its alpha.

pub const fn opaque(self) -> bool

Whether nothing under the colour shows through it.

pub fn faded(self, opacity: f32) -> Color

The same colour with its alpha scaled by opacity, from 0 to 1.

pub fn to_hex(self) -> String

The colour written the way CSS writes it, for a painter that takes a string.

pub fn from_hex(text: &str) -> Option<Color>

A colour from #rrggbb or #rrggbbaa, and None for anything else.

Trait Implementations

impl Clone for Color

fn clone(&self) -> Color

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Color

impl Debug for Color

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Color

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Color, D::Error>

Deserialize this value from the given Serde deserializer.

impl Eq for Color

impl Hash for Color

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

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 Color

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Color

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Color