Crate embedded_graphics_web_simulator

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Embedded Graphics Web Simulator

It can display all sorts of embedded-graphics test code.

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.

Setup

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 in the Embedded Graphics Simulator project for inspiration. You can use wasm-pack to create a ready to go project and add this library as a dependency.

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(())
}

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