TUI
TUITerminal UI ratatui crate GUI TUI terminal cell grid—— ANSI
ratatui widget treeBlock, Paragraph, List, Table frame.render_stateful_widget(widget, area, &mut state) crossterm event::poll / event::read
60fpsstd::time::Duration diff rendering frame buffer
[dependencies]
ratatui = "0.28"
crossterm = "0.28"use ratatui::{Frame, widgets::{Block, Borders, List, ListItem}};
use crossterm::event::{self, Event, KeyCode};
struct App {
items: Vec<String>,
selected: usize,
}
fn ui(frame: &mut Frame, app: &App) {
let items: Vec<ListItem> = app.items.iter()
.map(|s| ListItem::new(s.as_str()))
.collect();
let list = List::new(items)
.block(Block::default().title("Tools").borders(Borders::ALL));
frame.render_widget(list, frame.area());
}
fn main() -> Result<(), Box<dyn std::error::Error>> {
let stdout = std::io::stdout();
let mut backend = ratatui::backend::CrosstermBackend::new(stdout);
backend.enable_raw_mode()?;
let mut app = App { items: vec![], selected: 0 };
loop {
backend.draw(|f| ui(f, &app))?;
if event::poll(Duration::from_millis(16))? {
match event::read()? {
Event::Key(key) => match key.code {
KeyCode::Char('q') => break,
KeyCode::Down => { app.selected += 1; }
_ => {}
},
_ => {}
}
}
}
Ok(())
}TUI