Struct ColorF

#[repr(C)]
pub struct ColorF {
    pub r: f32,
    pub g: f32,
    pub b: f32,
    pub a: f32,
}

Represents RGBA screen colors with floating point numbers.

All components must be between 0.0 and 1.0. An alpha value of 1.0 is opaque while 0.0 is fully transparent.

Fields

r: f32

g: f32

b: f32

a: f32

Implementations

impl ColorF

pub const BLACK: ColorF = _

pub const TRANSPARENT: ColorF = _

pub const WHITE: ColorF = _

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

Constructs a new ColorF from its components.

pub fn scale_rgb(&self, scale: f32) -> Self

Multiply the RGB channels (but not alpha) with a given factor.

pub fn scale_alpha(&self, scale: f32) -> Self

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

pub fn premultiplied(&self) -> PremultipliedColorF

Multiply the RGB components with the alpha channel.

Trait Implementations

impl Clone for ColorF

fn clone(&self) -> ColorF

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColorF

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

Formats the value using the given formatter.

impl Default for ColorF

fn default() -> ColorF

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ColorF

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<ColorF> for ColorU

fn from(color: ColorF) -> Self

Converts to this type from the input type.

impl From<ColorU> for ColorF

fn from(color: ColorU) -> Self

Converts to this type from the input type.

impl MallocSizeOf for ColorF

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl PartialEq for ColorF

fn eq(&self, other: &ColorF) -> 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 Peek for ColorF

unsafe fn peek_from(bytes: *const u8, output: *mut Self) -> *const u8

Deserialize from the buffer pointed to by bytes.

impl Poke for ColorF

fn max_size() -> usize

Return the maximum number of bytes that the serialized version of Self will occupy.

unsafe fn poke_into(&self, bytes: *mut u8) -> *mut u8

Serialize into the buffer pointed to by bytes.

impl Serialize for ColorF

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 ColorF

impl StructuralPartialEq for ColorF