Struct Rgba 

pub struct Rgba {
    pub r: f64,
    pub g: f64,
    pub b: f64,
    pub a: f64,
}

RGBA color with f64 components in range [0, 1]. Port of C++ rgba.

Fields

r: f64

g: f64

b: f64

a: f64

Implementations

impl Rgba

pub fn new(r: f64, g: f64, b: f64, a: f64) -> Self

pub fn new_rgb(r: f64, g: f64, b: f64) -> Self

pub fn with_opacity(c: &Rgba, a: f64) -> Self

pub fn clear(&mut self) -> &mut Self

pub fn transparent(&mut self) -> &mut Self

pub fn set_opacity(&mut self, a: f64) -> &mut Self

pub fn opacity(&self) -> f64

pub fn premultiply(&mut self) -> &mut Self

pub fn premultiply_with_alpha(&mut self, a: f64) -> &mut Self

pub fn demultiply(&mut self) -> &mut Self

pub fn gradient(&self, c: &Rgba, k: f64) -> Rgba

Interpolate between self and c by parameter k.

pub fn no_color() -> Self

pub fn from_wavelength(wl: f64, gamma: f64) -> Self

Create a color from a visible light wavelength (380–780 nm).

Trait Implementations

impl Add for Rgba

type Output = Rgba

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> Self

Performs the + operation.

impl AddAssign for Rgba

fn add_assign(&mut self, rhs: Self)

Performs the += operation.

impl Clone for Rgba

fn clone(&self) -> Rgba

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Rgba

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

Formats the value using the given formatter.

impl Default for Rgba

fn default() -> Self

Returns the “default value” for a type.

impl Mul<f64> for Rgba

type Output = Rgba

The resulting type after applying the * operator.

fn mul(self, k: f64) -> Self

Performs the * operation.

impl MulAssign<f64> for Rgba

fn mul_assign(&mut self, k: f64)

Performs the *= operation.

impl PartialEq for Rgba

fn eq(&self, other: &Rgba) -> 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 Rgba

impl StructuralPartialEq for Rgba