tui-rs/examples/table.rs
2018-05-25 07:57:00 +02:00

110 lines
2.9 KiB
Rust

extern crate termion;
extern crate tui;
use std::io;
use termion::event;
use termion::input::TermRead;
use tui::Terminal;
use tui::backend::MouseBackend;
use tui::layout::{Direction, Group, Rect, Size};
use tui::style::{Color, Modifier, Style};
use tui::widgets::{Block, Borders, Row, Table, Widget};
struct App<'a> {
size: Rect,
items: Vec<Vec<&'a str>>,
selected: usize,
}
impl<'a> App<'a> {
fn new() -> App<'a> {
App {
size: Rect::default(),
items: vec![
vec!["Row12", "Row12", "Row13"],
vec!["Row21", "Row22", "Row23"],
vec!["Row31", "Row32", "Row33"],
vec!["Row41", "Row42", "Row43"],
vec!["Row51", "Row52", "Row53"],
vec!["Row61", "Row62", "Row63"],
],
selected: 0,
}
}
}
fn main() {
// Terminal initialization
let backend = MouseBackend::new().unwrap();
let mut terminal = Terminal::new(backend).unwrap();
// App
let mut app = App::new();
// First draw call
terminal.clear().unwrap();
terminal.hide_cursor().unwrap();
app.size = terminal.size().unwrap();
draw(&mut terminal, &app);
// Input
let stdin = io::stdin();
for c in stdin.keys() {
let size = terminal.size().unwrap();
if size != app.size {
terminal.resize(size).unwrap();
app.size = size;
}
let evt = c.unwrap();
match evt {
event::Key::Char('q') => {
break;
}
event::Key::Down => {
app.selected += 1;
if app.selected > app.items.len() - 1 {
app.selected = 0;
}
}
event::Key::Up => if app.selected > 0 {
app.selected -= 1;
} else {
app.selected = app.items.len() - 1;
},
_ => {}
};
draw(&mut terminal, &app);
}
terminal.show_cursor().unwrap();
terminal.clear().unwrap();
}
fn draw(t: &mut Terminal<MouseBackend>, app: &App) {
let selected_style = Style::default().fg(Color::Yellow).modifier(Modifier::Bold);
let normal_style = Style::default().fg(Color::White);
let header = ["Header1", "Header2", "Header3"];
let rows = app.items.iter().enumerate().map(|(i, item)| {
if i == app.selected {
Row::StyledData(item.into_iter(), &selected_style)
} else {
Row::StyledData(item.into_iter(), &normal_style)
}
});
Group::default()
.direction(Direction::Horizontal)
.sizes(&[Size::Percent(100)])
.margin(5)
.render(t, &app.size, |t, chunks| {
Table::new(header.into_iter(), rows)
.block(Block::default().borders(Borders::ALL).title("Table"))
.widths(&[10, 10, 10])
.render(t, &chunks[0]);
});
t.draw().unwrap();
}