cympfh / egui-app

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egui template

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This is a template repo for egui.

The goal is for this to be the simplest way to get started writing a GUI app in Rust.

You can compile your app natively or for the web, and share it using Github Pages.

Getting started

Start by clicking "Use this template" at https://github.com/emilk/egui_template/ or follow these instructions.

src/app.rs contains a simple example app. This is just to give some inspiration - most of it can be removed if you like.

Make sure you are using the latest version of stable rust.

Testing locally

cargo run --release

On Linux you need to first run sudo apt-get install libxcb-render0-dev libxcb-shape0-dev libxcb-xfixes0-dev.

Compiling for the web

You can compile your app to WASM and publish it as a web page. For this you need to set up some tools. There are a few simple scripts that help you with this:

./setup_web.sh
./build_web.sh
./start_server.sh
open http://127.0.0.1:8080/
  • setup_web.sh installs the tools required to build for web
  • build_web.sh compiles your code to wasm and puts it in the docs/ folder (see below)
  • start_server.sh starts a local HTTP server so you can test before you publish
  • Open http://127.0.0.1:8080/ in a web browser to view

The finished web app is found in the docs/ folder (this is so that you can easily share it with GitHub Pages). It consists of three files:

  • index.html: A few lines of HTML, CSS and JS that loads your app. You need to edit this (once) to replace egui_template with the name of your crate!
  • your_crate_bg.wasm: What the Rust code compiles to.
  • your_crate.js: Auto-generated binding between Rust and JS.

You can test the template app at https://emilk.github.io/egui_template/.

Updating egui

As of 2021, egui is in active development with frequent releases with breaking changes. egui_template will be updated in lock-step to always use the latest version of egui.

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