Struct epd_waveshare::graphics::VarDisplay

pub struct VarDisplay<'a> { /* fields omitted */ }

A variable Display without a predefined buffer

The buffer can be created as following: buffer: [DEFAULT_BACKGROUND_COLOR.get_byte_value(); WIDTH / 8 * HEIGHT]

Example:

let width = 128;
let height = 296;

let mut buffer = [DEFAULT_BACKGROUND_COLOR.get_byte_value(); 128 / 8 * 296];
let mut display = VarDisplay::new(width, height, &mut buffer);

display.set_rotation(DisplayRotation::Rotate90);

display.draw(
    Line::new(Coord::new(0, 120), Coord::new(0, 295))
        .with_stroke(Some(Color::Black))
        .into_iter(),
);

Methods

impl<'a> VarDisplay<'a>

pub fn new(width: u32, height: u32, buffer: &'a mut [u8]) -> VarDisplay<'a>

Trait Implementations

impl<'a> Display for VarDisplay<'a>

fn buffer(&self) -> &[u8]

Returns the buffer

fn get_mut_buffer(&mut self) -> &mut [u8]

Returns a mutable buffer

fn set_rotation(&mut self, rotation: DisplayRotation)

Sets the rotation of the display

fn rotation(&self) -> DisplayRotation

Get the current rotation of the display

fn clear_buffer(&mut self, background_color: Color)

Clears the buffer of the display with the chosen background color

fn draw_helper<T>(&mut self, width: u32, height: u32, item_pixels: T) where
    T: Iterator<Item = Pixel<Color>>, 

Helperfunction for the Embedded Graphics draw trait

impl<'a> Drawing<Color> for VarDisplay<'a>

fn draw<T>(&mut self, item_pixels: T) where
    T: Iterator<Item = Pixel<Color>>, 

Draw an object from an iterator over its pixels