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Incomplete experiment with Ratatui

master
Julio Biason 1 year ago
parent
e1febd4af2
commit
d314074f9c
3 changed files with 402 additions and 0 deletions
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  1. 323
      ratatuitest/Cargo.lock
  2. 10
      ratatuitest/Cargo.toml
  3. 69
      ratatuitest/src/main.rs

323
ratatuitest/Cargo.lock generated
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
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"parking_lot",
"signal-hook",
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"winapi",
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[[package]]
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[[package]]
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10
ratatuitest/Cargo.toml
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[package]
name = "ratatuitest"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
crossterm = "0.27.0"
ratatui = "0.22.0"

69
ratatuitest/src/main.rs
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use crossterm::event::KeyCode;
use crossterm::event::KeyEventKind;
use crossterm::terminal::disable_raw_mode;
use crossterm::terminal::enable_raw_mode;
use ratatui::prelude::Backend;
use ratatui::prelude::Constraint;
use ratatui::prelude::CrosstermBackend;
use ratatui::prelude::Direction;
use ratatui::prelude::Layout;
use ratatui::style::Color;
use ratatui::style::Modifier;
use ratatui::style::Style;
use ratatui::widgets::List;
use ratatui::widgets::ListItem;
use ratatui::Frame;
use ratatui::Terminal;
use std::error::Error;
fn main() -> Result<(), Box<dyn Error>> {
enable_raw_mode()?;
let mut stdout = std::io::stdout();
let backend = CrosstermBackend::new(stdout);
let mut terminal = Terminal::new(backend)?;
let res = run_app(&mut terminal);
// finish
disable_raw_mode()?;
Ok(())
}
fn run_app<B: Backend>(terminal: &mut Terminal<B>) -> std::io::Result<()> {
loop {
terminal.draw(|f| ui(f))?;
match crossterm::event::read()? {
crossterm::event::Event::Key(key) => {
if key.kind == KeyEventKind::Press {
match key.code {
KeyCode::Esc => break,
_ => (),
}
}
}
_ => (),
}
}
Ok(())
}
fn ui<B: Backend>(f: &mut Frame<B>) {
let items = [
ListItem::new("Item 1"),
ListItem::new("Item 2"),
ListItem::new("Item 3"),
];
let block = Layout::default()
.direction(Direction::Horizontal)
.constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref())
.split(f.size());
let list = List::new(items)
.highlight_style(
Style::default()
.bg(Color::LightGreen)
.add_modifier(Modifier::BOLD),
)
.highlight_symbol("> ");
f.render_widget(list, block[0]);
}
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