mirror of
https://github.com/ratatui-org/ratatui
synced 2024-09-20 06:31:59 +00:00
74a32afbae
`crossterm`, `termion`, and `termwiz` can now be accessed as
`ratatui::{crossterm, termion, termwiz}` respectively. This makes it
possible to just add the Ratatui crate as a dependency and use the
backend of choice without having to add the backend crates as
dependencies.
To update existing code, replace all instances of `crossterm::` with
`ratatui::crossterm::`, `termion::` with `ratatui::termion::`, and
`termwiz::` with `ratatui::termwiz::`.
48 lines
2 KiB
Rust
48 lines
2 KiB
Rust
//! # [Ratatui] Minimal example
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//!
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//! The latest version of this example is available in the [examples] folder in the repository.
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//!
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//! Please note that the examples are designed to be run against the `main` branch of the Github
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//! repository. This means that you may not be able to compile with the latest release version on
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//! crates.io, or the one that you have installed locally.
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//!
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//! See the [examples readme] for more information on finding examples that match the version of the
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//! library you are using.
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//!
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//! [Ratatui]: https://github.com/ratatui-org/ratatui
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//! [examples]: https://github.com/ratatui-org/ratatui/blob/main/examples
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//! [examples readme]: https://github.com/ratatui-org/ratatui/blob/main/examples/README.md
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use ratatui::{
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backend::CrosstermBackend,
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crossterm::{
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event::{self, Event, KeyCode, KeyEventKind},
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execute,
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terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
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},
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text::Text,
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Terminal,
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};
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/// This is a bare minimum example. There are many approaches to running an application loop, so
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/// this is not meant to be prescriptive. See the [examples] folder for more complete examples.
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/// In particular, the [hello-world] example is a good starting point.
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///
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/// [examples]: https://github.com/ratatui-org/ratatui/blob/main/examples
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/// [hello-world]: https://github.com/ratatui-org/ratatui/blob/main/examples/hello_world.rs
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fn main() -> Result<(), Box<dyn std::error::Error>> {
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let mut terminal = Terminal::new(CrosstermBackend::new(std::io::stdout()))?;
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enable_raw_mode()?;
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execute!(terminal.backend_mut(), EnterAlternateScreen)?;
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loop {
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terminal.draw(|frame| frame.render_widget(Text::raw("Hello World!"), frame.size()))?;
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if let Event::Key(key) = event::read()? {
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if key.kind == KeyEventKind::Press && key.code == KeyCode::Char('q') {
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break;
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}
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}
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}
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disable_raw_mode()?;
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execute!(terminal.backend_mut(), LeaveAlternateScreen)?;
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Ok(())
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}
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