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272 lines
12 KiB
Markdown
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<!--
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Permalink to https://github.com/ratatui-org/ratatui/blob/images/examples/demo2.gif
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See RELEASE.md for instructions on creating the demo gif
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--->
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<div align="center">
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[](https://crates.io/crates/ratatui)
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[](./LICENSE) [](https://github.com/ratatui-org/ratatui/actions?query=workflow%3ACI+)
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[](https://docs.rs/crate/ratatui/)<br>
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[](https://deps.rs/repo/github/ratatui-org/ratatui)
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[](https://app.codecov.io/gh/ratatui-org/ratatui)
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[](https://discord.gg/pMCEU9hNEj)
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[](https://matrix.to/#/#ratatui:matrix.org)<br>
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[Documentation](https://docs.rs/ratatui)
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· [Examples](https://github.com/ratatui-org/ratatui/tree/main/examples)
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· [Report a bug](https://github.com/ratatui-org/ratatui/issues/new?labels=bug&projects=&template=bug_report.md)
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· [Request a Feature](https://github.com/ratatui-org/ratatui/issues/new?labels=enhancement&projects=&template=feature_request.md)
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· [Send a Pull Request](https://github.com/ratatui-org/ratatui/compare)
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</div>
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<img align="left" src="https://avatars.githubusercontent.com/u/125200832?s=128&v=4">
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# Ratatui
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`ratatui` is a [Rust](https://www.rust-lang.org) library that is all about cooking up terminal user
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interfaces. It is a community fork of the original [tui-rs](https://github.com/fdehau/tui-rs)
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project.
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<details>
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<summary>Table of Contents</summary>
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* [Ratatui](#ratatui)
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* [Installation](#installation)
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* [Introduction](#introduction)
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* [Quickstart](#quickstart)
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* [Status of this fork](#status-of-this-fork)
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* [Rust version requirements](#rust-version-requirements)
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* [Documentation](#documentation)
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* [Examples](#examples)
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* [Widgets](#widgets)
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* [Built in](#built-in)
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* [Third\-party libraries, bootstrapping templates and
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widgets](#third-party-libraries-bootstrapping-templates-and-widgets)
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* [Apps](#apps)
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* [Alternatives](#alternatives)
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* [Contributors](#contributors)
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* [Acknowledgments](#acknowledgments)
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* [License](#license)
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</details>
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## Installation
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```shell
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cargo add ratatui --features all-widgets
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```
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Or modify your `Cargo.toml`
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```toml
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[dependencies]
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ratatui = { version = "0.23.0", features = ["all-widgets"]}
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```
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## Introduction
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`ratatui` is a terminal UI library that supports multiple backends:
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* [crossterm](https://github.com/crossterm-rs/crossterm) [default]
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* [termion](https://github.com/ticki/termion)
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* [termwiz](https://github.com/wez/wezterm/tree/master/termwiz)
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The library is based on the principle of immediate rendering with intermediate buffers. This means
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that at each new frame you should build all widgets that are supposed to be part of the UI. While
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providing a great flexibility for rich and interactive UI, this may introduce overhead for highly
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dynamic content. So, the implementation try to minimize the number of ansi escapes sequences
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generated to draw the updated UI. In practice, given the speed of `Rust` the overhead rather comes
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from the terminal emulator than the library itself.
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Moreover, the library does not provide any input handling nor any event system and you may rely on
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the previously cited libraries to achieve such features.
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We keep a [CHANGELOG](./CHANGELOG.md) generated by [git-cliff](https://github.com/orhun/git-cliff)
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utilizing [Conventional Commits](https://www.conventionalcommits.org/).
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## Quickstart
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The following example demonstrates the minimal amount of code necessary to setup a terminal and
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render "Hello World!". The full code for this example which contains a little more detail is in
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[hello_world.rs](./examples/hello_world.rs). For more guidance on how to create Ratatui apps, see
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the [Docs](https://docs.rs/ratatui) and [Examples](#examples). There is also a starter template
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available at [rust-tui-template](https://github.com/ratatui-org/rust-tui-template).
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```rust
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fn main() -> Result<(), Box<dyn Error>> {
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let mut terminal = setup_terminal()?;
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run(&mut terminal)?;
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restore_terminal(&mut terminal)?;
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Ok(())
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}
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fn setup_terminal() -> Result<Terminal<CrosstermBackend<Stdout>>, Box<dyn Error>> {
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let mut stdout = io::stdout();
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enable_raw_mode()?;
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execute!(stdout, EnterAlternateScreen)?;
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Ok(Terminal::new(CrosstermBackend::new(stdout))?)
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}
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fn restore_terminal(
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terminal: &mut Terminal<CrosstermBackend<Stdout>>,
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) -> Result<(), Box<dyn Error>> {
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disable_raw_mode()?;
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execute!(terminal.backend_mut(), LeaveAlternateScreen,)?;
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Ok(terminal.show_cursor()?)
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}
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fn run(terminal: &mut Terminal<CrosstermBackend<Stdout>>) -> Result<(), Box<dyn Error>> {
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Ok(loop {
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terminal.draw(|frame| {
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let greeting = Paragraph::new("Hello World!");
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frame.render_widget(greeting, frame.size());
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})?;
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if event::poll(Duration::from_millis(250))? {
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if let Event::Key(key) = event::read()? {
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if KeyCode::Char('q') == key.code {
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break;
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}
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}
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}
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})
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}
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```
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## Status of this fork
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In response to the original maintainer [**Florian Dehau**](https://github.com/fdehau)'s issue
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regarding the [future of `tui-rs`](https://github.com/fdehau/tui-rs/issues/654), several members of
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the community forked the project and created this crate. We look forward to continuing the work
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started by Florian 🚀
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In order to organize ourselves, we currently use a [Discord server](https://discord.gg/pMCEU9hNEj),
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feel free to join and come chat! There is also a [Matrix](https://matrix.org/) bridge available at
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[#ratatui:matrix.org](https://matrix.to/#/#ratatui:matrix.org).
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While we do utilize Discord for coordinating, it's not essential for contributing.
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Our primary open-source workflow is centered around GitHub.
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For significant discussions, we rely on GitHub — please open an issue, a discussion or a PR.
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Please make sure you read the updated [contributing](./CONTRIBUTING.md) guidelines, especially if
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you are interested in working on a PR or issue opened in the previous repository.
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## Rust version requirements
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Since version 0.23.0, The Minimum Supported Rust Version (MSRV) of `ratatui` is 1.67.0.
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## Documentation
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The documentation can be found on [docs.rs.](https://docs.rs/ratatui)
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## Examples
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The demo shown in the gif above is available on all available backends.
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```shell
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# crossterm
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cargo run --example demo
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# termion
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cargo run --example demo --no-default-features --features=termion
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# termwiz
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cargo run --example demo --no-default-features --features=termwiz
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```
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The UI code for this is in [examples/demo/ui.rs](./examples/demo/ui.rs) while the application state
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is in [examples/demo/app.rs](./examples/demo/app.rs).
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If the user interface contains glyphs that are not displayed correctly by your terminal, you may
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want to run the demo without those symbols:
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```shell
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cargo run --example demo --release -- --tick-rate 200 --enhanced-graphics false
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```
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More examples are available in the [examples](./examples/) folder.
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## Widgets
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### Built in
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The library comes with the following
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[widgets](https://docs.rs/ratatui/latest/ratatui/widgets/index.html):
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* [BarChart](https://docs.rs/ratatui/latest/ratatui/widgets/struct.BarChart.html)
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* [Block](https://docs.rs/ratatui/latest/ratatui/widgets/block/struct.Block.html)
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* [Calendar](https://docs.rs/ratatui/latest/ratatui/widgets/calendar/index.html)
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* [Canvas](https://docs.rs/ratatui/latest/ratatui/widgets/canvas/struct.Canvas.html) which allows
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rendering [points, lines, shapes and a world
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map](https://docs.rs/ratatui/latest/ratatui/widgets/canvas/index.html)
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* [Chart](https://docs.rs/ratatui/latest/ratatui/widgets/struct.Chart.html)
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* [Clear](https://docs.rs/ratatui/latest/ratatui/widgets/struct.Clear.html)
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* [Gauge](https://docs.rs/ratatui/latest/ratatui/widgets/struct.Gauge.html)
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* [List](https://docs.rs/ratatui/latest/ratatui/widgets/struct.List.html)
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* [Paragraph](https://docs.rs/ratatui/latest/ratatui/widgets/struct.Paragraph.html)
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* [Scrollbar](https://docs.rs/ratatui/latest/ratatui/widgets/scrollbar/struct.Scrollbar.html)
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* [Sparkline](https://docs.rs/ratatui/latest/ratatui/widgets/struct.Sparkline.html)
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* [Table](https://docs.rs/ratatui/latest/ratatui/widgets/struct.Table.html)
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* [Tabs](https://docs.rs/ratatui/latest/ratatui/widgets/struct.Tabs.html)
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Each widget has an associated example which can be found in the [examples](./examples/) folder. Run
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each examples with cargo (e.g. to run the gauge example `cargo run --example gauge`), and quit by
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pressing `q`.
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You can also run all examples by running `cargo make run-examples` (requires `cargo-make` that can
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be installed with `cargo install cargo-make`).
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### Third-party libraries, bootstrapping templates and widgets
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* [ansi-to-tui](https://github.com/uttarayan21/ansi-to-tui) — Convert ansi colored text to
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`ratatui::text::Text`
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* [color-to-tui](https://github.com/uttarayan21/color-to-tui) — Parse hex colors to
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`ratatui::style::Color`
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* [rust-tui-template](https://github.com/ratatui-org/rust-tui-template) — A template for bootstrapping a
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Rust TUI application with Tui-rs & crossterm
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* [simple-tui-rs](https://github.com/pmsanford/simple-tui-rs) — A simple example tui-rs app
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* [tui-builder](https://github.com/jkelleyrtp/tui-builder) — Batteries-included MVC framework for
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Tui-rs + Crossterm apps
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* [tui-clap](https://github.com/kegesch/tui-clap-rs) — Use clap-rs together with Tui-rs
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* [tui-log](https://github.com/kegesch/tui-log-rs) — Example of how to use logging with Tui-rs
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* [tui-logger](https://github.com/gin66/tui-logger) — Logger and Widget for Tui-rs
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* [tui-realm](https://github.com/veeso/tui-realm) — Tui-rs framework to build stateful applications
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with a React/Elm inspired approach
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* [tui-realm-treeview](https://github.com/veeso/tui-realm-treeview) — Treeview component for
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Tui-realm
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* [tui-rs-tree-widgets](https://github.com/EdJoPaTo/tui-rs-tree-widget): Widget for tree data
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structures.
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* [tui-windows](https://github.com/markatk/tui-windows-rs) — Tui-rs abstraction to handle multiple
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windows and their rendering
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* [tui-textarea](https://github.com/rhysd/tui-textarea): Simple yet powerful multi-line text editor
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widget supporting several key shortcuts, undo/redo, text search, etc.
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* [tui-input](https://github.com/sayanarijit/tui-input): TUI input library supporting multiple
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backends and tui-rs.
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* [tui-term](https://github.com/a-kenji/tui-term): A pseudoterminal widget library
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that enables the rendering of terminal applications as ratatui widgets.
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## Apps
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Check out the list of more than 50 [Apps using
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`Ratatui`](https://github.com/ratatui-org/ratatui/wiki/Apps-using-Ratatui)!
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## Alternatives
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You might want to checkout [Cursive](https://github.com/gyscos/Cursive) for an alternative solution
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to build text user interfaces in Rust.
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## Contributors
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[](https://github.com/ratatui-org/ratatui/graphs/contributors)
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## Acknowledgments
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Special thanks to [**Pavel Fomchenkov**](https://github.com/nawok) for his work in designing **an
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awesome logo** for the ratatui project and ratatui-org organization.
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## License
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[MIT](./LICENSE)
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