Struct pixelflut::pixel::Color

pub struct Color { /* fields omitted */ }

Methods

impl Color

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

Constructs a new Color without using an alpha channel.

Examples

Basic usage:

use pixelflut::Color;
Color::rgb(255, 255, 255);

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

Constructs a new Color using an alpha channel.

Examples

Basic usage:

use pixelflut::Color;
Color::rgba(255, 255, 255, 255);

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

Constructs a new Color using the alpha channel only, if a != 255.

Examples

Basic usage:

use pixelflut::Color;
assert_eq!(Color::packed(123, 23, 42, 255), Color::rgb(123, 23, 42));
assert_eq!(Color::packed(123, 23, 42, 64), Color::rgba(123, 23, 42, 64));

pub fn pack(&self) -> Color

Strips the alpha channel if not existent or value is 255.Color

Examples

Basic usage:

use pixelflut::Color;
assert_eq!(Color::rgba(12, 34, 56, 255).pack(), Color::rgb(12, 34, 56));
assert_eq!(Color::rgb(12, 34, 56).pack(), Color::rgb(12, 34, 56));
assert_eq!(Color::rgba(12, 34, 56, 78).pack(), Color::rgba(12, 34, 56, 78));

pub fn normalized(self) -> (u8, u8, u8, u8)

Returns a 4-Tuple with the components red, green, blue and alpha

If no alpha channel is present, 255 is returned as the alpha channel.

Examples

use pixelflut::Color;
assert_eq!((255, 0, 0, 255), Color::rgb(255, 0, 0).normalized())

Trait Implementations

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

fn into(self) -> (u8, u8, u8)

Performs the conversion.

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

fn into(self) -> (u8, u8, u8, u8)

Performs the conversion.

impl Copy for Color

impl PartialEq<Color> for Color

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

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

fn from(color: (u8, u8, u8)) -> Color

Returns a RGB Color

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

fn from(color: (u8, u8, u8, u8)) -> Color

Returns a RGBA Color

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 Display for Color

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

Formats the value using the given formatter.

impl Debug for Color

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

Formats the value using the given formatter.

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, 

Feeds a slice of this type into the given [Hasher].

impl FromStr for Color

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Color>

Converts a string to a color

Examples

use pixelflut::Color;
assert_eq!(Color::rgb(0x11, 0x22, 0x33), "112233".parse().unwrap());
assert_eq!(Color::rgba(0x11, 0x22, 0x33, 0xee), "112233ee".parse().unwrap());
assert!("".parse::<Color>().is_err());
assert!("123".parse::<Color>().is_err());
assert!("12345".parse::<Color>().is_err());
assert!(" 1 2 3".parse::<Color>().is_err());
assert!("112g33".parse::<Color>().is_err());