Struct Color 

pub struct Color { /* private fields */ }

A color represented by red, green, blue, and alpha channels in the range 0.0 to 1.0.

Implementations

impl Color

Implements methods for Color.

pub fn from_rgb(red: u8, green: u8, blue: u8) -> Color

Creates a color from RGB hex values (0-255), with full opacity.

Arguments

• u8 - The red channel (0-255).
• u8 - The green channel (0-255).
• u8 - The blue channel (0-255).

Returns

• Color - The new color.

pub fn to_css_rgba(&self) -> String

Converts the color to a CSS rgba() string.

Returns

• String - The CSS color string.

pub fn write_css_rgba(&self, buffer: &mut String)

Writes the CSS rgba() representation into the provided buffer.

Reuses the caller’s allocation so per-frame color conversions in tight render loops avoid the format! machinery and repeated allocation.

Arguments

• &mut String - The buffer to append the CSS color string to.

pub fn black() -> Color

Returns black (0, 0, 0, 1).

Returns

• Color - The black color.

pub fn white() -> Color

Returns white (1, 1, 1, 1).

Returns

• Color - The white color.

pub fn transparent() -> Color

Returns transparent (0, 0, 0, 0).

Returns

• Color - The transparent color.

impl Color

pub fn get_red(&self) -> f64

pub fn get_mut_red(&mut self) -> &mut f64

pub fn set_red(&mut self, val: f64) -> &mut Self

pub fn get_green(&self) -> f64

pub fn get_mut_green(&mut self) -> &mut f64

pub fn set_green(&mut self, val: f64) -> &mut Self

pub fn get_blue(&self) -> f64

pub fn get_mut_blue(&mut self) -> &mut f64

pub fn set_blue(&mut self, val: f64) -> &mut Self

pub fn get_alpha(&self) -> f64

pub fn get_mut_alpha(&mut self) -> &mut f64

pub fn set_alpha(&mut self, val: f64) -> &mut Self

impl Color

pub fn new(red: f64, green: f64, blue: f64, alpha: f64) -> Self

impl Color

Implements static CSS conversion for Color.

pub fn to_css(color: &Color) -> String

Converts a Color to a CSS rgba() string suitable for canvas fill or stroke styles.

Arguments

• &Color - The color to convert.

Returns

• String - The CSS rgba() color string.

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 Default for Color

Implements Default for Color as opaque black.

fn default() -> Color

Returns the “default value” for a type.

impl PartialEq for Color

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Color

fn partial_cmp(&self, other: &Color) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Color