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# FTXUI
Functional Terminal (X) User interface
A simple cross-platform C++ library for terminal based user interfaces!
## Feature
* Functional style. Inspired by
[1](https://hackernoon.com/building-reactive-terminal-interfaces-in-c-d392ce34e649?gi=d9fb9ce35901)
and [React](https://reactjs.org/)
* Simple and elegant syntax (in my opinion)
* Keyboard & mouse navigation.
* Support for [UTF8](https://en.wikipedia.org/wiki/UTF-8) and [fullwidth chars](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms) (→ 测试)
* Support for animations. [Demo 1](https://arthursonzogni.github.io/FTXUI/examples/?file=component/menu_underline_animated_gallery), [Demo 2](https://arthursonzogni.github.io/FTXUI/examples/?file=component/button_style)
* Support for drawing. [Demo](https://arthursonzogni.github.io/FTXUI/examples/?file=component/canvas_animated)
* No dependencies.
* [C++20 Module support](https://arthursonzogni.github.io/FTXUI/cpp20-modules.html)
* **Cross platform**: Linux/MacOS (main target), WebAssembly, Windows (Thanks to contributors!).
* Learn by [examples](#documentation), and [tutorials](#documentation)
* Multiple packages:
- CMake [FetchContent]([https://bewagner.net/programming/2020/05/02/cmake-fetchcontent/](https://cmake.org/cmake/help/latest/module/FetchContent.html)) (preferred)
- [Bazel](https://registry.bazel.build/modules/ftxui)
- [vcpkg](https://vcpkg.link/ports/ftxui)
- [Conan](https://conan.io/center/recipes/ftxui) [Debian package](https://tracker.debian.org/pkg/ftxui)
- [Ubuntu package](https://launchpad.net/ubuntu/+source/ftxui)
- [Arch Linux](https://aur.archlinux.org/packages/ftxui/)
- [OpenSUSE](https://build.opensuse.org/package/show/devel:libraries:c_c++/ftxui)
- [XMake](https://xmake.io) repository [package](https://github.com/xmake-io/xmake-repo/blob/dev/packages/f/ftxui/xmake.lua)
- [Nix](https://github.com/ArthurSonzogni/FTXUI/blob/main/flake.nix)
- [Amalgamated (single-header/source)](https://arthursonzogni.github.io/FTXUI/installation_amalgamated.html) (from 7.0.0)
- [conda-forge](https://anaconda.org/channels/conda-forge/packages/ftxui/overview)
* Good practices: documentation, tests, fuzzers, performance tests, automated CI, automated packaging, etc...
## Documentation
- [Starter CMake](https://github.com/ArthurSonzogni/ftxui-starter)
- [Starter Bazel](https://github.com/ArthurSonzogni/ftxui-bazel)
- [Documentation](https://arthursonzogni.github.io/FTXUI/)
- [Examples (WebAssembly)](https://arthursonzogni.github.io/FTXUI/examples/)
- [Build using CMake](https://arthursonzogni.github.io/FTXUI/#build-cmake)
- [Build using Bazel](https://arthursonzogni.github.io/FTXUI/#build-bazel)
- [Build using Meson](doc/installation_meson.md)
## Example
~~~cpp
#include
using namespace ftxui;
int main() {
auto document =
vbox({
hbox({
text("one") | border,
text("two") | border | flex,
text("three") | border | flex,
}),
gauge(0.25) | color(Color::Red),
gauge(0.50) | color(Color::White),
gauge(0.75) | color(Color::Blue),
});
auto screen = Screen::Create(Dimension::Full());
Render(screen, document);
screen.Print();
return 0;
}
~~~
## Short gallery
FTXUI is organized into three modules:
1. **screen**: Low-level rendering (colors, pixels, terminal)
2. **dom**: Layout and composition (hierarchical elements)
3. **component**: User interaction (widgets, events, main loop)
For most users, including everything at once is the simplest way to start:
- Header: `#include `
- CMake target: `ftxui::ftxui`
- Bazel target: `@ftxui//:ftxui`
#### DOM
This module defines a hierarchical set of `Element`. An `Element` manages layout and can be responsive to the terminal dimensions.
They are declared in [``](https://arthursonzogni.github.io/FTXUI/elements_8hpp_source.html
)
Layout
`Element` can be arranged together:
- horizontally with `hbox`
- vertically with `vbox`
- inside a grid with `gridbox`
- wrap along one direction using the `flexbox`.
`Element` can become flexible using the `flex` decorator.
[Example](https://arthursonzogni.github.io/FTXUI/examples_2dom_2vbox_hbox_8cpp-example.html) using `hbox`, `vbox` and `filler`.
[Example](https://arthursonzogni.github.io/FTXUI/examples_2dom_2gridbox_8cpp-example.html) using gridbox:
[Example](https://github.com/ArthurSonzogni/FTXUI/blob/master/examples/dom/hflow.cpp) using flexbox:
[See](https://arthursonzogni.github.io/FTXUI/examples_2dom_2hflow_8cpp-example.html) also this [demo](https://arthursonzogni.github.io/FTXUI/examples/?file=component/flexbox).
Style
An element can be decorated using the functions:
- `bold`
- `italic`
- `dim`
- `inverted`
- `underlined`
- `underlinedDouble`
- `blink`
- `strikethrough`
- `color`
- `bgcolor`
- `hyperlink`
[Example](https://arthursonzogni.github.io/FTXUI/examples_2dom_2style_gallery_8cpp-example.html)
FTXUI supports the pipe operator. It means: `decorator1(decorator2(element))` and `element | decorator1 | decorator2` can be used.
Colors
FTXUI supports every color palette:
Color [gallery](https://arthursonzogni.github.io/FTXUI/examples_2dom_2color_gallery_8cpp-example.html):
Border and separator
Use decorator `border` and element `separator()` to subdivide your UI:
```cpp
Element document = vbox({
text("top"),
separator(),
text("bottom"),
}) | border;
```
[Demo](https://arthursonzogni.github.io/FTXUI/examples_2dom_2separator_8cpp-example.html):
Text and paragraph
A simple piece of text is represented using `text("content")`.
To support text wrapping following spaces the following functions are provided:
```cpp
Element paragraph(string text);
Element paragraphAlignLeft(string text);
Element paragraphAlignRight(string text);
Element paragraphAlignCenter(string text);
Element paragraphAlignJustify(string text);
```
[Paragraph example](https://arthursonzogni.github.io/FTXUI/examples_2dom_2paragraph_8cpp-example.html)
Table
A class to easily style a table of data.
[Example](https://arthursonzogni.github.io/FTXUI/examples_2dom_2table_8cpp-example.html):
Canvas
Drawing can be made on a `Canvas`, using braille, block, or simple characters:
Simple [example](https://github.com/ArthurSonzogni/FTXUI/blob/master/examples/dom/canvas.cpp):
Complex [examples](https://github.com/ArthurSonzogni/FTXUI/blob/master/examples/component/canvas_animated.cpp):
Gallery
[Gallery](https://arthursonzogni.github.io/FTXUI/examples_2component_2gallery_8cpp-example.html) of multiple components. ([demo](https://arthursonzogni.github.io/FTXUI/examples/?file=component/gallery))
Radiobox
[Example](https://arthursonzogni.github.io/FTXUI/examples_2component_2radiobox_8cpp-example.html):
Checkbox
[Example](https://arthursonzogni.github.io/FTXUI/examples_2component_2checkbox_8cpp-example.html):
Input
[Example](https://arthursonzogni.github.io/FTXUI/examples_2component_2input_8cpp-example.html):
Toggle
[Example](https://arthursonzogni.github.io/FTXUI/examples_2component_2toggle_8cpp-example.html):
Slider
[Example](https://arthursonzogni.github.io/FTXUI/examples_2component_2slider_8cpp-example.html):
Menu
[Example](https://arthursonzogni.github.io/FTXUI/examples_2component_2menu_8cpp-example.html):
ResizableSplit
[Example](https://arthursonzogni.github.io/FTXUI/examples_2component_2resizable_split_8cpp-example.html):
Dropdown
[Example](https://arthursonzogni.github.io/FTXUI/examples_2component_2dropdown_8cpp-example.html):
Tab
[Vertical](https://arthursonzogni.github.io/FTXUI/examples_2component_2tab_vertical_8cpp-example.html):
[Horizontal](https://arthursonzogni.github.io/FTXUI/examples_2component_2tab_horizontal_8cpp-example.html):
