Struct Canvas 

pub struct Canvas<T> {
    pub data: Vec<T>,
    pub width: usize,
    pub height: usize,
}

A struct containing a single vector abstracted to a 2 dimensional array.

Arguments

data The actual data, stored as a Vec<T> width The width of the canvas height The height of the canvas

Note

The canvas is repesented by a single vector of type <T>. The canvas can be interpreted in any direction, but it was intended to start at the top left corner, and goes from left to right, up to down.

The functions provided allow access to each elemeny by row and column, as well as access to iterators over the whole canvas. If you prefer the raw data, then you can access the data field directly.

Fields

data: Vec<T>

width: usize

height: usize

Implementations

impl<T: Clone> Canvas<T>

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

Creates a new canvas of the specified size. The background data is the default data that will fill the canvas at initialization.

Background data type must implement the Clone trait.

pub fn get(&self, row: usize, col: usize) -> Option<&T>

Return the pixel value at the specified row and column.

pub fn get_mut(&mut self, row: usize, col: usize) -> Option<&mut T>

Return a mutable reference to the pixel at the specified row and column.

pub fn iter(&self) -> Iter<'_, T>

Returns an iterator over all the pixels in the canvas, starting from top left, scanning left to right, top to bottom.

pub fn iter_mut(&mut self) -> IterMut<'_, T>

Returns a mutable iterator over all the pixels in the canvas, starting from top left, scanning left ot right, top to bottom.

Trait Implementations

impl<T: Clone> Clone for Canvas<T>

fn clone(&self) -> Canvas<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.