Struct rgb::alt::GrayAlpha

#[repr(C)]
pub struct GrayAlpha<ComponentType, AlphaComponentType = ComponentType>(pub ComponentType, pub AlphaComponentType);

Grayscale with alpha. Use .0/.1 to access.

Methods

impl<T: Clone, A> GrayAlpha<T, A>

pub fn gray(&self) -> Gray<T>

Copy Gray component out of the GrayAlpha struct

impl<T, A> GrayAlpha<T, A>

pub fn gray_mut(&mut self) -> &mut Gray<T>

Provide a mutable view of only Gray component (leaving out alpha).

impl<T: Copy, A: Clone> GrayAlpha<T, A>

pub fn map_gray<F, U, B>(&self, f: F) -> GrayAlpha<U, B> where     F: FnOnce(T) -> U,     U: Clone,     B: From<A> + Clone,

Create new GrayAlpha with the same alpha value, but different Gray value

Trait Implementations

impl<T: Clone, A> From<GrayAlpha<T, A>> for RGBA<T, A>

fn from(other: GrayAlpha<T, A>) -> Self

Performs the conversion.

impl<T> AsRef<T> for GrayAlpha<T>

fn as_ref(&self) -> &T

Performs the conversion.

impl<T> AsMut<T> for GrayAlpha<T>

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

Performs the conversion.

impl<ComponentType: Copy, AlphaComponentType: Copy> Copy for GrayAlpha<ComponentType, AlphaComponentType>

impl<ComponentType: Clone, AlphaComponentType: Clone> Clone for GrayAlpha<ComponentType, AlphaComponentType>

fn clone(&self) -> GrayAlpha<ComponentType, AlphaComponentType>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<ComponentType: Debug, AlphaComponentType: Debug> Debug for GrayAlpha<ComponentType, AlphaComponentType>

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

Formats the value using the given formatter.

impl<ComponentType: Default, AlphaComponentType: Default> Default for GrayAlpha<ComponentType, AlphaComponentType>

fn default() -> GrayAlpha<ComponentType, AlphaComponentType>

Returns the "default value" for a type.

impl<ComponentType: Eq, AlphaComponentType: Eq> Eq for GrayAlpha<ComponentType, AlphaComponentType>

impl<ComponentType: PartialEq, AlphaComponentType: PartialEq> PartialEq for GrayAlpha<ComponentType, AlphaComponentType>

fn eq(&self, other: &GrayAlpha<ComponentType, AlphaComponentType>) -> bool

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

fn ne(&self, other: &GrayAlpha<ComponentType, AlphaComponentType>) -> bool

This method tests for !=.

impl<ComponentType: Ord, AlphaComponentType: Ord> Ord for GrayAlpha<ComponentType, AlphaComponentType>

fn cmp(&self, other: &GrayAlpha<ComponentType, AlphaComponentType>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl<ComponentType: PartialOrd, AlphaComponentType: PartialOrd> PartialOrd for GrayAlpha<ComponentType, AlphaComponentType>

fn partial_cmp(     &self,     other: &GrayAlpha<ComponentType, AlphaComponentType> ) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &GrayAlpha<ComponentType, AlphaComponentType>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &GrayAlpha<ComponentType, AlphaComponentType>) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &GrayAlpha<ComponentType, AlphaComponentType>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &GrayAlpha<ComponentType, AlphaComponentType>) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<ComponentType: Hash, AlphaComponentType: Hash> Hash for GrayAlpha<ComponentType, AlphaComponentType>

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

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<T: Copy, B> ComponentMap<GrayAlpha<B>, T, B> for GrayAlpha<T>

fn map<F>(&self, f: F) -> GrayAlpha<B> where     F: FnMut(T) -> B,

Convenience function (equivalent of self.iter().map().collect()) for applying the same formula to every component.

impl<T> ComponentSlice<T> for GrayAlpha<T>

fn as_slice(&self) -> &[T]

The components interpreted as an array, e.g. one RGB expands to 3 elements.

fn as_mut_slice(&mut self) -> &mut [T]

impl<T: Copy> From<Gray<T>> for GrayAlpha<T, u8>

Assumes 255 is opaque

fn from(other: Gray<T>) -> Self

Performs the conversion.

impl<T: Copy> From<Gray<T>> for GrayAlpha<T, u16>

Assumes 65535 is opaque

fn from(other: Gray<T>) -> Self

Performs the conversion.