Struct epaint::Rgba

#[repr(C)]
pub struct Rgba(/* private fields */);

Expand description

0-1 linear space RGBA color with premultiplied alpha.

Implementations§

impl Rgba

pub const TRANSPARENT: Rgba = _

pub const BLACK: Rgba = _

pub const WHITE: Rgba = _

pub const RED: Rgba = _

pub const GREEN: Rgba = _

pub const BLUE: Rgba = _

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 is_additive(self) -> bool

Is the 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 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>

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>> for Rgba

fn from(srgba: PremultipliedAlpha<LinearSrgb>) -> 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, Self: Sized,

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<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 Mul for Rgba

type Output = Rgba

The resulting type after applying the * operator.

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

Performs the * operation. Read more

impl PartialEq for Rgba

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

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

1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

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 Freeze for Rgba

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,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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.

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

fn from(t: T) -> T

Returns the argument unchanged.

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

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> Pointable for T

const ALIGN: usize = _

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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)

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.

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.

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

Performs the conversion.

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,