Struct ada::Canvas

pub struct Canvas { /* fields omitted */ }

Container for drawing the shapes

Implementations

impl Canvas

pub fn new(width: usize, height: usize) -> Result<Canvas>

creates a new canvas. Takes:

width: width of the canvas
height: height of the canvas

Canvas does not create a internal buffer, it takes a buffer during draw

pub fn draw(&mut self, shape: &dyn Shape, color: &Color, buffer: &mut [u8])

Draw the shape within the bounds in the canvas

Provide a mutable buffer to fill the values. It assumes color mode to RGBA.

pub fn clear(&mut self, color: &Color, buffer: &mut [u8])

fill the canvas buffer with specified color

pub fn get_color<'a>(&self, x: i32, y: i32, buffer: &'a mut [u8]) -> &'a [u8]

Get the pixel’s color value at specified coordinate