Struct Color 

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

RGBA 颜色类型

Fields

r: u8

红色分量 (0-255)

g: u8

绿色分量 (0-255)

b: u8

蓝色分量 (0-255)

a: u8

透明度分量 (0-255)，255 为完全不透明

Implementations

impl Color

pub const WHITE: Color

pub const BLACK: Color

pub const RED: Color

pub const GREEN: Color

pub const BLUE: Color

pub const YELLOW: Color

pub const CYAN: Color

pub const MAGENTA: Color

pub const TRANSPARENT: Color

pub const GRAY: Color

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

创建新的 RGBA 颜色

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

创建不透明的 RGB 颜色

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

创建带透明度的颜色

pub fn from_hex(hex: &str) -> Result<Self, DrawError>

从十六进制字符串创建颜色 支持格式: “#RGB”, “#RGBA”, “#RRGGBB”, “#RRGGBBAA”

pub fn to_rgba(&self) -> Rgba<u8>

转换为 image 库的 Rgba 类型

pub fn from_rgba(rgba: Rgba<u8>) -> Self

从 image 库的 Rgba 类型创建

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 Debug for Color

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

Formats the value using the given formatter.

impl Default for Color

fn default() -> Self

Returns the “default value” for a type.

impl From<(u8, u8, u8)> for Color

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

Converts to this type from the input type.

impl From<(u8, u8, u8, u8)> for Color

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

Converts to this type from the input type.

impl From<Color> for Rgba<u8>

fn from(color: Color) -> Self

Converts to this type from the input type.

impl From<Rgba<u8>> for Color

fn from(rgba: Rgba<u8>) -> Self

Converts to this type from the input type.

impl PartialEq for Color

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

impl StructuralPartialEq for Color