Arthur Sonzogni 8e98928c0c Support combining characters. (#121)
Modify the ftxui::Pixel. Instead of storing a wchar, store a
std::wstring. Now a single pixel can store multiple codepoints.
If a codepoint is of size <=0, it will be appended to the previous
pixel.

Only ftxui::text() is supported. ftxui::vtext support still needs to be
added.

This causes the following CPU and memory regression:
- Memory: Pixel size increases by 200% (16 byte => 48byte).
- CPU:    Draw/Second decrease by 62.5% (16k draw/s => 6k draw/s on 80x80)

Both regressions are acceptable. There are still two orders of magnitude
(100x) before the levels where performance/memory concerns begins.

This fixes: https://github.com/ArthurSonzogni/FTXUI/issues/109
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FTXUI

issues license contributors

Functional Terminal (X) User interface

A simple C++ library for terminal based user interface.

Demo:

Demo image

Feature

  • Functional style. Inspired by [1] and React
  • Simple and elegant syntax (in my opinion).
  • Support for UTF8 and fullwidth chars (→ 测试).
  • No dependencies.
  • Cross platform. Linux/mac (main target), Windows (experimental thanks to contributors), WebAssembly.
  • Keyboard & mouse navigation.

Operating systems

  • linux-emscripten
  • linux-gcc linux-clang
  • windows-msvc
  • mac-clang

Example:

  vbox({
    hbox({
      text(L"left") | border,
      text(L"middle") | border | flex,
      text(L"right") | border,
    }),
    gauge(0.5) | border,
  });
┌────┐┌───────────────────────────────────────────────────────────────┐┌─────┐
│left││middle                                                         ││right│
└────┘└───────────────────────────────────────────────────────────────┘└─────┘
┌────────────────────────────────────────────────────────────────────────────┐
│██████████████████████████████████████                                      │
└────────────────────────────────────────────────────────────────────────────┘

Documentation:

Project using FTXUI

Feel free to add your projects here:

Hosted on:

External package:

It is highly recommanded to use cmake FetchContent to depends on FTXUI. This way you can specify which commit you would like to depends on.

If you don't, the following packages have been created:

Description
Languages
C++ 94.9%
CMake 2.3%
Starlark 1.4%
Python 0.9%
Nix 0.3%
Other 0.2%