embedded-graphics-web-simulator 0.1.1

# Embedded Graphics Web Simulator

The web simulator is based on [embedded-graphics-simulator](https://docs.rs/embedded-graphics-simulator/0.2.0/embedded_graphics_simulator/).
This is a sample project demonstrating using a `no_std` rust-embedded library with Webassembly.

The Web Simulator allows you to use a browser to test embedded-graphics code and run graphics. There is no need to install SDL and its development libraries for _running_ the project. You can see [the demo here](https://rahul-thakoor.github.io/embedded-graphics-web-simulator/).

## For Development

This library is intended to be used in Rust + Webassembly projects. Check the examples which illustrate how to use the library. Look at the [examples](https://github.com/jamwaffles/embedded-graphics/tree/master/simulator/examples) in the Embedded Graphics Simulator project for inspiration. You can use [wasm-pack](https://rustwasm.github.io/wasm-pack/) to create a ready to go project and add this library as a dependency.

Usage example:

```rust
use embedded_graphics_web_simulator::{
    display::WebSimulatorDisplay, output_settings::OutputSettingsBuilder,
};
use wasm_bindgen::prelude::*;
use web_sys::console;

use embedded_graphics::{
    image::Image,
    pixelcolor::{ Rgb565},
    prelude::*,
    primitive_style,
};
use tinybmp::Bmp;


// This is like the `main` function, except for JavaScript.
#[wasm_bindgen(start)]
pub fn main_js() -> Result<(), JsValue> {
    // This provides better error messages in debug mode.
    // It's disabled in release mode so it doesn't bloat up the file size.
    #[cfg(debug_assertions)]
    console_error_panic_hook::set_once();

    let output_settings = OutputSettingsBuilder::new().scale(3).build();
    let mut display = WebSimulatorDisplay::new((128, 128), &output_settings);

    // Load the BMP image
    let bmp = Bmp::from_slice(include_bytes!("./assets/rust-pride.bmp")).unwrap();
    let image: Image<Bmp, Rgb565> = Image::new(&bmp, Point::new(32, 32));
    image
        .draw(&mut display)
        .unwrap_or_else(|_| console::log_1(&"Couldn't draw image".into()));

    Ok(())
}

```

### How it works

Embedded Graphics Web Simulator implements [`DrawTarget`](https://docs.rs/embedded-graphics/0.6.0/embedded_graphics/prelude/trait.DrawTarget.html) for the HTML `<canvas>` element.

## Credits

This project is based on the [embedded-graphics](https://github.com/jamwaffles/embedded-graphics) library by @jamwaffles

Built with [wasm-pack](https://rustwasm.github.io/wasm-pack/)