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Emil Ernerfeldt 8dced5896c
rename egui_wasm to egui_web 		4 years ago
docs [egui] prepare for 0.1.0 release 5 years ago
egui [backend] use hardware scissor rect in WebGL and glium 4 years ago
egui_glium [backend] use hardware scissor rect in WebGL and glium 4 years ago
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LICENSE-APACHE [license] licence under MIT or Apache-2.0 5 years ago
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lint.sh No typescript. Just one index.html + wasm. 6 years ago
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README.md

Latest version Documentation MIT Apache

Egui

An immediate mode GUI library written in Rust. Works anywhere you can draw textured triangles.

Goals:

  • Lightweight
  • Short, conveniant syntax
  • Responsive (60 Hz without breaking a sweat)
  • Portable
  • Platform independent (the same code works on the web and as a native app)

How it works:

Loop:

  • Gather input: mouse, touches, screen size, ...
  • Run application code (Immediate Mode GUI)
  • Output is a triangle mesh
  • Render with e.g. OpenGL

Available backends:

Wherever you can render textured triangles you can use Egui.

The same application code can thus be compiled to either into a native app or a web app.

Demos

Egui feature demo, (partial) source: https://github.com/emilk/emigui/blob/master/egui/src/examples/app.rs

Hobogo: A small game using Egui, source: https://github.com/emilk/hobogo

State

Alpha state. It works, but is somewhat incomplete.

Features:

  • Labels
  • Buttons, checkboxes, radio buttons and sliders
  • Horizontal or vertical layout
  • Column layout
  • Collapsible headers (sections)
  • Windows
  • Resizable regions
  • Vertical scolling
  • Simple text input
  • Anti-aliased rendering of circles, rounded rectangles and lines.

Conventions

  • All coordinates are screen space coordinates, in locial "points" (which may consist of many physical pixels).
  • All colors have premultiplied alpha

Inspiration

The one and only Dear ImGui is a great Immediate Mode GUI for C++ which works with many backends. That library revolutionized how I think about GUI code from something I hated to do to something I now like to do.

Name

The name of the gui library is "Egui", written like that in text and as egui in code and pronounced as "e-gooey".

The library used to be called Emigui, which is why it is still hosted at github.com/emilk/emigui. If you like, emigui is the collection of helper crates that surrounds egui, while egui is the actual GUI library.

Credits / Licenses

Fonts:

  • Comfortaa: Open Font License, see OFT.txt
  • ProggyClean.ttf, Copyright (c) 2004, 2005 Tristan Grimmer. MIT License. http://www.proggyfonts.net/
  • Roboto-Regular.ttf: Apache License, Version 2.0