Struct Color

pub struct Color { /* private fields */ }

A color.

When specifying RGBA values of a color, the RGB values can either be specified straight or premultiplied. Premultiplied means that the RGB values have already been multiplied by the alpha value.

Given a color, to reduce its opacity by half,

• if you’re working with premultiplied values, you would multiply each component by 0.5;
• if you’re working with straight values, you would multiply only the alpha component by 0.5.

When using hexadecimal notation, #RRGGBBAA, the RGB values are usually straight.

Implementations

impl Color

pub const BLACK: Self

Solid black.

pub fn new(r: u8, g: u8, b: u8) -> Self

Creates a new color from u8 RGB values.

pub fn new_straight(r: u8, g: u8, b: u8, a: u8) -> Self

Creates a new color from straight u8 RGBA values.

pub fn new_f32_premultiplied(r: f32, g: f32, b: f32, a: f32) -> Self

Creates a new color from premultiplied f32 RGBA values.

pub fn new_f32_straight(r: f32, g: f32, b: f32, a: f32) -> Self

Creates a new color from straight f32 RGBA values.

pub fn new_f32(r: f32, g: f32, b: f32) -> Self

Creates a new color from f32 RGB values.

pub fn to_f32_premultiplied(&self) -> [f32; 4]

Converts the color to its premultiplied f32 RGBA values.

pub fn to_f32_straight(&self) -> [f32; 4]

Converts the color to its straight f32 RGBA values.

pub fn to_u8_straight(&self) -> [u8; 4]

Converts the color to its straight u8 RGBA values.

Trait Implementations

impl Clone for Color

fn clone(&self) -> Color

Returns a copy of the value.

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

Performs copy-assignment from source.

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: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Color

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Color