commit	a179931d4d3d9c0f39a0c9a48c77a142128d15f0	[log] [tgz]
author	BalazsJako <this.is.balazs.jako@gmail.com>	Thu Apr 11 07:40:22 2019 +0100
committer	BalazsJako <this.is.balazs.jako@gmail.com>	Thu Apr 11 07:40:22 2019 +0100
tree	faa5b43d17d866fc69987c01f64fe0c1bd74a7da
parent	76d9d98836114369a88b422dcb92eb1d6cd3d949 [diff]

tree: faa5b43d17d866fc69987c01f64fe0c1bd74a7da

README.md

ImGuiColorTextEdit

Syntax highlighting text editor for ImGui

Screenshot

Demo project: https://github.com/BalazsJako/ColorTextEditorDemo

This started as my attempt to write a relatively simple widget which provides source code editing functionality with basic syntax highlighting. Now there are other contributors who provide valuable additions.

While it relies on Omar Cornut's https://github.com/ocornut/imgui, it does not follow the “pure” one widget - one function approach. Since the editor has to maintain a relatively complex and large internal state, it did not seem to be practical to try and enforce fully immediate mode.

The code is (still) work in progress, please report if you find any issues.

Main features

approximates typical code editor look and feel (essential mouse/keyboard commands work - I mean, the commands I normally use :))
undo/redo support
extensible, multiple language syntax support
identifier declarations: a small piece of text associated with an identifier. The editor displays it in a tooltip when the mouse cursor is hovered over the identifier
error markers: the user can specify a list of error messages together the line of occurence, the editor will highligh the lines with red backround and display error message in a tooltip when the mouse cursor is hovered over the line
supports large files: there is no explicit limit set on file size or number of lines, performance is not affected when large files are loaded (except syntax coloring, see below)
color palette support: you can switch between different color palettes, or even define your own
supports both fixed and variable-width fonts

Known issues

syntax highligthing of most languages - except C/C++ - is based on std::regex, which is diasppointingly slow. Because of that, the highlighting process is amortized between multiple frames. C/C++ has a hand-written tokenizer which is much faster.
8 bit character only, no Unicode or Utf support
no find/replace support

Don't forget to post your screenshots if you use this little piece of software in order to keep me us motivated. :)

Contribute

If you want to contribute, please refer to CONTRIBUTE file.

Thank you. :)