Struct microbit::display::image::GreyscaleImage[−][src]

pub struct GreyscaleImage(_);
Expand description

A 5×5 image supporting the full range of brightnesses for each LED.

Uses 25 bytes of storage.

Implementations

impl GreyscaleImage[src]

pub const fn new(data: &[[u8; 5]; 5]) -> GreyscaleImage[src]

Constructs a GreyscaleImage from an array of brightnesses.

The data should be an array of 5 rows (top first), each of which is an array of 5 brightness values (left first).

Example

const GREY_HEART: GreyscaleImage = GreyscaleImage::new(&[
    [0, 9, 0, 9, 0],
    [9, 5, 9, 5, 9],
    [9, 5, 5, 5, 9],
    [0, 9, 5, 9, 0],
    [0, 0, 9, 0, 0],
]);

pub const fn blank() -> GreyscaleImage[src]

Construct a GreyscaleImage with all LEDs turned off.

Trait Implementations

impl Clone for GreyscaleImage[src]

pub fn clone(&self) -> GreyscaleImage[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl Debug for GreyscaleImage[src]

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

Formats the value using the given formatter. Read more

impl<'_> Render for &'_ GreyscaleImage[src]

pub fn brightness_at(&self, x: usize, y: usize) -> u8[src]

Returns the brightness value for a single LED. Read more

impl Render for GreyscaleImage[src]

pub fn brightness_at(&self, x: usize, y: usize) -> u8[src]

Returns the brightness value for a single LED. Read more

impl Copy for GreyscaleImage[src]

Auto Trait Implementations

Blanket Implementations

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

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Az for T[src]

pub fn az<Dst>(self) -> Dst where
    T: Cast<Dst>, [src]

Casts the value.

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> CheckedAs for T[src]

pub fn checked_as<Dst>(self) -> Option<Dst> where
    T: CheckedCast<Dst>, [src]

Casts the value.

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<Src, Dst> LosslessTryInto<Dst> for Src where
    Dst: LosslessTryFrom<Src>, [src]

pub fn lossless_try_into(self) -> Option<Dst>[src]

Performs the conversion.

impl<Src, Dst> LossyInto<Dst> for Src where
    Dst: LossyFrom<Src>, [src]

pub fn lossy_into(self) -> Dst[src]

Performs the conversion.

impl<T> OverflowingAs for T[src]

pub fn overflowing_as<Dst>(self) -> (Dst, bool) where
    T: OverflowingCast<Dst>, [src]

Casts the value.

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> SaturatingAs for T[src]

pub fn saturating_as<Dst>(self) -> Dst where
    T: SaturatingCast<Dst>, [src]

Casts the value.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

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

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T> UnwrappedAs for T[src]

pub fn unwrapped_as<Dst>(self) -> Dst where
    T: UnwrappedCast<Dst>, [src]

Casts the value.

impl<T> WrappingAs for T[src]

pub fn wrapping_as<Dst>(self) -> Dst where
    T: WrappingCast<Dst>, [src]

Casts the value.