Struct egui::Rgba

source · [−]

#[repr(C)]
pub struct Rgba(_);

Expand description

0-1 linear space RGBA color with premultiplied alpha.

Implementations

impl Rgba

pub const TRANSPARENT: Rgba = Rgba::from_rgba_premultiplied(0.0, 0.0, 0.0, 0.0)

pub const BLACK: Rgba = Rgba::from_rgb(0.0, 0.0, 0.0)

pub const WHITE: Rgba = Rgba::from_rgb(1.0, 1.0, 1.0)

pub const RED: Rgba = Rgba::from_rgb(1.0, 0.0, 0.0)

pub const GREEN: Rgba = Rgba::from_rgb(0.0, 1.0, 0.0)

pub const BLUE: Rgba = Rgba::from_rgb(0.0, 0.0, 1.0)

pub const fn from_rgba_premultiplied(r: f32, g: f32, b: f32, a: f32) -> Rgba

pub fn from_rgba_unmultiplied(r: f32, g: f32, b: f32, a: f32) -> Rgba

pub fn from_srgba_premultiplied(r: u8, g: u8, b: u8, a: u8) -> Rgba

pub fn from_srgba_unmultiplied(r: u8, g: u8, b: u8, a: u8) -> Rgba

pub const fn from_rgb(r: f32, g: f32, b: f32) -> Rgba

pub const fn from_gray(l: f32) -> Rgba

pub fn from_luminance_alpha(l: f32, a: f32) -> Rgba

pub fn from_black_alpha(a: f32) -> Rgba

Transparent black

pub fn from_white_alpha(a: f32) -> Rgba

Transparent white

pub fn additive(self) -> Rgba

Return an additive version of this color (alpha = 0)

pub fn multiply(self, alpha: f32) -> Rgba

Multiply with e.g. 0.5 to make us half transparent

pub fn r(&self) -> f32

pub fn g(&self) -> f32

pub fn b(&self) -> f32

pub fn a(&self) -> f32

pub fn intensity(&self) -> f32

How perceptually intense (bright) is the color?

pub fn to_opaque(&self) -> Rgba

Returns an opaque version of self

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

Premultiplied RGBA

pub fn to_tuple(&self) -> (f32, f32, f32, f32 )

Premultiplied RGBA

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

unmultiply the alpha

pub fn to_srgba_unmultiplied(&self) -> [u8 ; 4]

unmultiply the alpha

Trait Implementations

impl Add<Rgba> for Rgba

type Output = Rgba

The resulting type after applying the + operator.

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

Performs the + operation. Read more

impl Clone for Rgba

fn clone(&self) -> Rgba

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl ColorInterop for Rgba

type CintTy = PremultipliedAlpha<LinearSrgb<f32>>

fn from_cint(col: Self::CintTy) -> Self

Convert self into its canonical cint type.

fn into_cint(self) -> Self::CintTy

Create a Self from its canonical cint type.

impl Debug for Rgba

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

Formats the value using the given formatter. Read more

impl Default for Rgba

fn default() -> Rgba

Returns the “default value” for a type. Read more

impl<'de> Deserialize<'de> for Rgba

fn deserialize<D>(
deserializer: D
) -> Result<Rgba, <D as Deserializer<'de>>::Error> where
__D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

impl From<Color32> for Rgba

fn from(srgba: Color32) -> Rgba

Converts to this type from the input type.

impl From<Hsva> for Rgba

fn from(hsva: Hsva) -> Rgba

Converts to this type from the input type.

impl From<HsvaGamma> for Rgba

fn from(hsvag: HsvaGamma) -> Rgba

Converts to this type from the input type.

impl From<PremultipliedAlpha<LinearSrgb<f32>>> for Rgba

fn from(srgba: PremultipliedAlpha<LinearSrgb<f32>>) -> Rgba

Converts to this type from the input type.

impl From<Rgba> for Color32

fn from(rgba: Rgba) -> Color32

Converts to this type from the input type.

impl From<Rgba> for Hsva

fn from(rgba: Rgba) -> Hsva

Converts to this type from the input type.

impl From<Rgba> for HsvaGamma

fn from(rgba: Rgba) -> HsvaGamma

Converts to this type from the input type.

impl Hash for Rgba

fn hash<H>(&self, state: &mut H) where
H: Hasher,

Feeds this value into the given Hasher. Read more

1.3.0 · source

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

impl Index<usize> for Rgba

type Output = f32

The returned type after indexing.

fn index(&self, index: usize) -> &f32

Performs the indexing (container[index]) operation. Read more

impl IndexMut<usize> for Rgba

fn index_mut(&mut self, index: usize) -> &mut f32

Performs the mutable indexing (container[index]) operation. Read more

impl Mul<Rgba> for Rgba

type Output = Rgba

The resulting type after applying the * operator.

fn mul(self, other: Rgba) -> Rgba

Performs the * operation. Read more

impl Mul<f32> for Rgba

type Output = Rgba

The resulting type after applying the * operator.

fn mul(self, factor: f32) -> Rgba

Performs the * operation. Read more

impl PartialEq<Rgba> for Rgba

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

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

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

This method tests for !=.

impl Serialize for Rgba

fn serialize<S>(
    &self,
    serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
    S: Serializer,

Serialize this value into the given Serde serializer. Read more

impl Zeroable for Rgba

fn zeroed() -> Self

Calls zeroed. Read more

impl Copy for Rgba

impl Pod for Rgba

impl StructuralPartialEq for Rgba

Auto Trait Implementations

impl RefUnwindSafe for Rgba

impl Send for Rgba

impl Sync for Rgba

impl Unpin for Rgba

impl UnwindSafe for Rgba

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CallHasher for T where
T: Hash + ?Sized,

default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where
H: Hash + ?Sized,
B: BuildHasher,

impl<T> CheckedBitPattern for T where
T: AnyBitPattern,

type Bits = T

Self must have the same layout as the specified Bits except for the possible invalid bit patterns being checked during is_valid_bit_pattern. Read more

fn is_valid_bit_pattern(_bits: &T) -> bool

If this function returns true, then it must be valid to reinterpret bits as &Self.

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<T> AnyBitPattern for T where
T: Pod,

impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,

impl<T> NoUninit for T where
T: Pod,

impl<T> SerializableAny for T where
T: 'static + Any + Clone + Serialize + for<'a> Deserialize<'a> + Send + Sync,