diff options
| -rw-r--r-- | Cargo.lock | 274 | ||||
| -rw-r--r-- | Cargo.toml | 2 | ||||
| -rw-r--r-- | src/main.rs | 94 |
3 files changed, 368 insertions, 2 deletions
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"447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd" @@ -6,3 +6,5 @@ edition = "2021" # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html [dependencies] +tui = "0.19" +crossterm = "0.25" diff --git a/src/main.rs b/src/main.rs index e7a11a9..85e95ea 100644 --- a/src/main.rs +++ b/src/main.rs @@ -1,3 +1,93 @@ -fn main() { - println!("Hello, world!"); +use crossterm::{ + event::{ + self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode, KeyEvent, KeyModifiers, + }, + execute, + terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen}, +}; +use std::io; +use tui::{ + backend::{Backend, CrosstermBackend}, + layout::{Constraint, Direction, Layout}, + widgets::Paragraph, + Frame, Terminal, +}; + +enum Signal { + None, + Exit, +} + +#[derive(Default)] +struct App {} + +impl App { + fn handle_input(&mut self, key: KeyEvent) -> Signal { + match key.modifiers { + KeyModifiers::CONTROL => match key.code { + KeyCode::Char('c') => { + return Signal::Exit; + } + _ => {} + }, + KeyModifiers::NONE => match key.code { + KeyCode::Char('q') => { + return Signal::Exit; + } + _ => {} + }, + _ => {} + } + return Signal::None; + } + + fn draw<B: Backend>(&self, f: &mut Frame<B>) { + let chunks = Layout::default() + .direction(Direction::Vertical) + .constraints([Constraint::Percentage(100)].as_ref()) + .split(f.size()); + f.render_widget(Paragraph::new("test"), chunks[0]); + } +} + +fn main() -> io::Result<()> { + let app = App::default(); + let mut terminal = init_terminal()?; + let result = run(app, &mut terminal); + cleanup_terminal(terminal)?; + result +} + +fn init_terminal() -> Result<Terminal<CrosstermBackend<io::Stdout>>, io::Error> { + enable_raw_mode()?; + let mut stdout = io::stdout(); + execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?; + let backend = CrosstermBackend::new(stdout); + Terminal::new(backend) +} + +fn cleanup_terminal<B>(mut terminal: Terminal<B>) -> Result<(), io::Error> +where + B: Backend + io::Write, +{ + disable_raw_mode()?; + execute!( + terminal.backend_mut(), + LeaveAlternateScreen, + DisableMouseCapture, + )?; + terminal.show_cursor()?; + Ok(()) +} + +fn run<B: Backend>(mut app: App, terminal: &mut Terminal<B>) -> io::Result<()> { + loop { + terminal.draw(|f| app.draw(f))?; + + if let Event::Key(key) = event::read()? { + if let Signal::Exit = app.handle_input(key) { + return Ok(()); + } + } + } } |