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|
use crossterm::{
event::{self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode},
execute,
terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
};
use std::{error::Error, io, ptr};
use tui::{
backend::{Backend, CrosstermBackend},
layout::{Constraint, Direction, Layout},
style::{Color, Modifier, Style},
text::Spans,
widgets::{self, Block, Borders, Cell, Paragraph, Table, Tabs, Widget},
Frame, Terminal,
};
use volute::{
app::{App, CONFIG_TAB_INDEX, INPUT_TAB_INDEX},
input::InputMode,
};
fn main() -> Result<(), Box<dyn Error>> {
// setup terminal
enable_raw_mode()?;
let mut stdout = io::stdout();
execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?;
let backend = CrosstermBackend::new(stdout);
let mut terminal = Terminal::new(backend)?;
// create app and run it
let app = App::default();
let res = run_app(&mut terminal, app);
// restore terminal
disable_raw_mode()?;
execute!(
terminal.backend_mut(),
LeaveAlternateScreen,
DisableMouseCapture
)?;
terminal.show_cursor()?;
if let Err(err) = res {
println!("{:?}", err)
}
Ok(())
}
// Input handling
fn run_app<B: Backend>(terminal: &mut Terminal<B>, mut app: App) -> io::Result<()> {
loop {
terminal.draw(|f| ui(f, &app))?;
if let Event::Key(key) = event::read()? {
match app.tab_index {
INPUT_TAB_INDEX => match app.input_mode {
InputMode::Normal => match key.code {
KeyCode::Char('q') => {
return Ok(());
}
KeyCode::Char('L') => app.next_tab(),
KeyCode::Char('H') => app.previous_tab(),
KeyCode::Char('j') => app.next_row(),
KeyCode::Char('k') => app.previous_row(),
KeyCode::Char('l') => app.next_column(),
KeyCode::Char('h') => app.previous_column(),
KeyCode::Char('i') => {
app.input_mode = InputMode::Insert;
}
KeyCode::Char('p') => app.insert_row(),
KeyCode::Char('d') => app.remove_row(),
_ => {}
},
InputMode::Insert => match key.code {
KeyCode::Esc | KeyCode::Enter => {
app.input_mode = InputMode::Normal;
}
KeyCode::Char(c) => app.selected_input_param_mut().push(c),
KeyCode::Backspace => app.selected_input_param_mut().pop(),
_ => {}
},
},
CONFIG_TAB_INDEX => match key.code {
KeyCode::Char('q') => {
return Ok(());
}
KeyCode::Char('L') => app.next_tab(),
KeyCode::Char('H') => app.previous_tab(),
_ => {}
},
_ => unreachable!(),
}
}
}
}
fn ui<B: Backend>(f: &mut Frame<B>, app: &App) {
let titles = app.tab_titles().iter().map(|t| Spans::from(*t)).collect();
let tabs = Tabs::new(titles)
.block(Block::default().borders(Borders::ALL).title("Tabs"))
.select(app.tab_index)
.highlight_style(
Style::default()
.fg(Color::Yellow)
.add_modifier(Modifier::BOLD),
);
match app.tab_index {
INPUT_TAB_INDEX => {
let layout = Layout::default()
.direction(Direction::Vertical)
.constraints(
[
Constraint::Length(3), // Tabs
Constraint::Length(app.rows().len() as u16 + 3), // Input table
Constraint::Max(100), // Spacer
Constraint::Length(1), // Footer
]
.as_ref(),
)
.split(f.size());
f.render_widget(tabs, layout[0]);
f.render_widget(input_table(app), layout[1]);
f.render_widget(footer(app), layout[3]);
}
CONFIG_TAB_INDEX => {
let layout = Layout::default()
.direction(Direction::Vertical)
.constraints([Constraint::Length(3), Constraint::Min(3)].as_ref())
.split(f.size());
f.render_widget(tabs, layout[0]);
f.render_widget(Paragraph::new("Config tab"), layout[1]);
}
_ => unreachable!(),
}
}
fn input_table(app: &App) -> impl Widget {
let rows = app.rows().iter().map(|row| {
let cells = row.iter().map(|item| {
if ptr::eq(item, app.selected_input_param()) {
Cell::from(item.string()).style(match app.input_mode {
InputMode::Normal => Style::default().fg(Color::Yellow),
InputMode::Insert => Style::default()
.fg(Color::Blue)
.add_modifier(Modifier::ITALIC),
})
} else {
Cell::from(item.string())
}
});
widgets::Row::new(cells)
});
Table::new(rows)
.header(widgets::Row::new(vec!["rpm", "ve", "map"]))
.block(Block::default().borders(Borders::ALL).title("inputs"))
.widths(&[
Constraint::Length(5), // rpm
Constraint::Length(3), // ve
Constraint::Length(3), // map
])
}
fn footer(app: &App) -> impl Widget {
match app.input_mode {
InputMode::Normal => {
Paragraph::new("Normal").style(Style::default().fg(Color::Black).bg(Color::Yellow))
}
InputMode::Insert => {
Paragraph::new("Insert").style(Style::default().fg(Color::Black).bg(Color::Blue))
}
}
}
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