Struct druid::piet::image_crate::Luma
pub struct Luma<T>(pub [T; 1]);
Expand description
Grayscale colors.
Tuple Fields§
§0: [T; 1]
Trait Implementations§
§impl<T> Pixel for Luma<T>where
T: Primitive,
impl<T> Pixel for Luma<T>where T: Primitive,
§const CHANNEL_COUNT: u8 = 1u8
const CHANNEL_COUNT: u8 = 1u8
The number of channels of this pixel type.
§fn channels_mut(&mut self) -> &mut [T] ⓘ
fn channels_mut(&mut self) -> &mut [T] ⓘ
Returns the components as a mutable slice
§const COLOR_MODEL: &'static str = "Y"
const COLOR_MODEL: &'static str = "Y"
A string that can help to interpret the meaning each channel
See gimp babl.
§fn channels4(&self) -> (T, T, T, T)
fn channels4(&self) -> (T, T, T, T)
👎Deprecated since 0.24.0: Use
channels()
or channels_mut()
Returns the channels of this pixel as a 4 tuple. If the pixel
has less than 4 channels the remainder is filled with the maximum value
§fn from_channels(a: T, b: T, c: T, d: T) -> Luma<T>
fn from_channels(a: T, b: T, c: T, d: T) -> Luma<T>
👎Deprecated since 0.24.0: Use the constructor of the pixel, for example
Rgba([r,g,b,a])
or Pixel::from_slice
Construct a pixel from the 4 channels a, b, c and d.
If the pixel does not contain 4 channels the extra are ignored.
§fn from_slice(slice: &[T]) -> &Luma<T>
fn from_slice(slice: &[T]) -> &Luma<T>
Returns a view into a slice. Read more
§fn from_slice_mut(slice: &mut [T]) -> &mut Luma<T>
fn from_slice_mut(slice: &mut [T]) -> &mut Luma<T>
Returns mutable view into a mutable slice. Read more
§fn to_luma_alpha(&self) -> LumaA<T>
fn to_luma_alpha(&self) -> LumaA<T>
Convert this pixel to luma with an alpha channel
§fn map<F>(&self, f: F) -> Luma<T>where
F: FnMut(T) -> T,
fn map<F>(&self, f: F) -> Luma<T>where F: FnMut(T) -> T,
Apply the function
f
to each channel of this pixel.§fn apply<F>(&mut self, f: F)where
F: FnMut(T) -> T,
fn apply<F>(&mut self, f: F)where F: FnMut(T) -> T,
Apply the function
f
to each channel of this pixel.§fn map_with_alpha<F, G>(&self, f: F, g: G) -> Luma<T>where
F: FnMut(T) -> T,
G: FnMut(T) -> T,
fn map_with_alpha<F, G>(&self, f: F, g: G) -> Luma<T>where F: FnMut(T) -> T, G: FnMut(T) -> T,
Apply the function
f
to each channel except the alpha channel.
Apply the function g
to the alpha channel.§fn apply_with_alpha<F, G>(&mut self, f: F, g: G)where
F: FnMut(T) -> T,
G: FnMut(T) -> T,
fn apply_with_alpha<F, G>(&mut self, f: F, g: G)where F: FnMut(T) -> T, G: FnMut(T) -> T,
Apply the function
f
to each channel except the alpha channel.
Apply the function g
to the alpha channel. Works in-place.§fn map2<F>(&self, other: &Luma<T>, f: F) -> Luma<T>where
F: FnMut(T, T) -> T,
fn map2<F>(&self, other: &Luma<T>, f: F) -> Luma<T>where F: FnMut(T, T) -> T,
Apply the function
f
to each channel of this pixel and
other
pairwise.§fn apply2<F>(&mut self, other: &Luma<T>, f: F)where
F: FnMut(T, T) -> T,
fn apply2<F>(&mut self, other: &Luma<T>, f: F)where F: FnMut(T, T) -> T,
Apply the function
f
to each channel of this pixel and
other
pairwise. Works in-place.§fn blend(&mut self, other: &Luma<T>)
fn blend(&mut self, other: &Luma<T>)
Blend the color of a given pixel into ourself, taking into account alpha channels
§fn map_without_alpha<F>(&self, f: F) -> Selfwhere
F: FnMut(Self::Subpixel) -> Self::Subpixel,
fn map_without_alpha<F>(&self, f: F) -> Selfwhere F: FnMut(Self::Subpixel) -> Self::Subpixel,
Apply the function
f
to each channel except the alpha channel.§fn apply_without_alpha<F>(&mut self, f: F)where
F: FnMut(Self::Subpixel) -> Self::Subpixel,
fn apply_without_alpha<F>(&mut self, f: F)where F: FnMut(Self::Subpixel) -> Self::Subpixel,
Apply the function
f
to each channel except the alpha channel.
Works in place.§impl PixelWithColorType for Luma<u16>
impl PixelWithColorType for Luma<u16>
§const COLOR_TYPE: ColorType = ColorType::L16
const COLOR_TYPE: ColorType = ColorType::L16
This pixel has the format of one of the predefined
ColorType
s,
such as Rgb8
, La16
or Rgba32F
.
This is needed for automatically detecting
a color format when saving an image as a file.§impl PixelWithColorType for Luma<u8>
impl PixelWithColorType for Luma<u8>
§const COLOR_TYPE: ColorType = ColorType::L8
const COLOR_TYPE: ColorType = ColorType::L8
This pixel has the format of one of the predefined
ColorType
s,
such as Rgb8
, La16
or Rgba32F
.
This is needed for automatically detecting
a color format when saving an image as a file.impl<T> Copy for Luma<T>where T: Copy,
impl<T> Eq for Luma<T>where T: Eq,
impl<T> StructuralEq for Luma<T>
impl<T> StructuralPartialEq for Luma<T>
Auto Trait Implementations§
impl<T> RefUnwindSafe for Luma<T>where T: RefUnwindSafe,
impl<T> Send for Luma<T>where T: Send,
impl<T> Sync for Luma<T>where T: Sync,
impl<T> Unpin for Luma<T>where T: Unpin,
impl<T> UnwindSafe for Luma<T>where T: UnwindSafe,
Blanket Implementations§
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
§impl<T> RoundFrom<T> for T
impl<T> RoundFrom<T> for T
§fn round_from(x: T) -> T
fn round_from(x: T) -> T
Performs the conversion.
§impl<T, U> RoundInto<U> for Twhere
U: RoundFrom<T>,
impl<T, U> RoundInto<U> for Twhere U: RoundFrom<T>,
§fn round_into(self) -> U
fn round_into(self) -> U
Performs the conversion.