Struct andrew::Canvas

pub struct Canvas<'a> {
    pub buffer: &'a mut [u8],
    pub width: usize,
    pub height: usize,
    pub stride: usize,
    pub pixel_size: usize,
}

The canvas object acts as a wrapper around a buffer, providing information and functions for drawing

Fields

buffer: &'a mut [u8]

A buffer for the canvas to draw to

width: usize

The width in pixels of the canvas

height: usize

The height in pixels of the canvas

stride: usize

The number of bytes between each line of pixels on the canvas

pixel_size: usize

The number of bytes contained in each pixel

Methods

impl<'a> Canvas<'a>

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

Creates a new canvas object

pub fn draw<D: Drawable>(&mut self, drawable: &D)

Draws an object that implements the Drawable trait to the buffer

pub fn draw_point(&mut self, x: usize, y: usize, color: [u8; 4])

Draws a pixel at the x and y coordinate

pub fn clear(&mut self)

Clears the entire canvas buffer by zeroing it