Struct waow::Canvas

pub struct Canvas { /* private fields */ }

Canvas that can be drawn to and gets displayed on the screen

Implementations

impl Canvas

pub fn new(config: &CanvasConfiguration) -> Self

pub fn get_size(&self) -> (u32, u32)

Gets the (width, height) of the canvas in pixels

pub fn draw_to_buffer(&mut self, frame: &mut [u8])

impl Canvas

pub fn draw_shape(&mut self, shape: &(impl Drawable + Clone + 'static))

Draws an arbitrary shape to the canvas

See Drawable for examples

pub fn draw_square( &mut self, x: i16, y: i16, size: i16, fill: Color, border: Option<(Color, i16)> )

Draws a square with the specified position, size, and color

Examples

use waow::*;

struct App {}
impl Run for App {
  fn start(&mut self, _canvas: &mut Canvas) {}
  fn draw(&mut self, canvas: &mut Canvas, _input: &Input) {
    canvas.draw_square(10, 10, 30, Color::from_rgba(0.0, 1.0, 0.5, 1.0), None);
  }
}

use waow::*;

struct App {}
impl Run for App {
  fn start(&mut self, _canvas: &mut Canvas) {}
  fn draw(&mut self, canvas: &mut Canvas, _input: &Input) {
    canvas.draw_square(
      10,
      10,
      30,
      Color::from_rgba(0.0, 1.0, 0.5, 1.0),
      Some((Color::from_rgba(1.0, 1.0, 1.0, 1.0), 3)),
    );
  }
}

pub fn draw_rect( &mut self, x: i16, y: i16, width: i16, height: i16, fill: Color, border: Option<(Color, i16)> )

Draws a rectangle with the specified position, width, height, and color

Examples

use waow::*;

struct App {}
impl Run for App {
  fn start(&mut self, _canvas: &mut Canvas) {}
  fn draw(&mut self, canvas: &mut Canvas, _input: &Input) {
    canvas.draw_rect(50, 10, 20, 50, Color::from_rgba(0.0, 0.5, 1.0, 1.0), None);
  }
}

use waow::*;

struct App {}
impl Run for App {
  fn start(&mut self, _canvas: &mut Canvas) {}
  fn draw(&mut self, canvas: &mut Canvas, _input: &Input) {
    canvas.draw_rect(
      10, 10, 30, 50,
      Color::from_rgba(0.0, 1.0, 0.5, 1.0),
      Some((Color::from_rgba(1.0, 1.0, 1.0, 1.0), 3)),
    );
  }
}

pub fn draw_image(&mut self, image: &Image)

Draws an image object to the canvas

Examples

use waow::*;

struct App {}
impl Run for App {
  fn start(&mut self, _canvas: &mut Canvas) {}
  fn draw(&mut self, canvas: &mut Canvas, _input: &Input) {
    let img = shapes::Image::new(30, 30, 100, 100);

    canvas.draw_image(&img);
  }
}