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498 lines
16 KiB
Rust
498 lines
16 KiB
Rust
#[allow(dead_code)]
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mod util;
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use std::time::{Duration, Instant};
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use easycurses;
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use tui::backend::{Backend, CursesBackend};
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use tui::layout::{Constraint, Direction, Layout, Rect};
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use tui::style::{Color, Modifier, Style};
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use tui::widgets::canvas::{Canvas, Line, Map, MapResolution, Rectangle};
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use tui::widgets::{
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Axis, BarChart, Block, Borders, Chart, Dataset, Gauge, List, Marker, Paragraph, Row,
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SelectableList, Sparkline, Table, Tabs, Text, Widget,
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};
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use tui::{Frame, Terminal};
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use crate::util::{RandomSignal, SinSignal, TabsState};
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struct Server<'a> {
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name: &'a str,
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location: &'a str,
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coords: (f64, f64),
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status: &'a str,
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}
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struct App<'a> {
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items: Vec<&'a str>,
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events: Vec<(&'a str, &'a str)>,
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selected: usize,
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tabs: TabsState<'a>,
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show_chart: bool,
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progress: u16,
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data: Vec<u64>,
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data2: Vec<(f64, f64)>,
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data3: Vec<(f64, f64)>,
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data4: Vec<(&'a str, u64)>,
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window: [f64; 2],
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colors: [Color; 2],
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color_index: usize,
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servers: Vec<Server<'a>>,
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}
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fn main() -> Result<(), failure::Error> {
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stderrlog::new()
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.module(module_path!())
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.verbosity(4)
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.init()?;
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let mut terminal = Terminal::new(CursesBackend::new().unwrap()).unwrap();
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terminal.clear().unwrap();
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terminal.hide_cursor().unwrap();
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terminal
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.backend_mut()
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.get_curses_window_mut()
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.set_input_timeout(easycurses::TimeoutMode::WaitUpTo(50));
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let mut rand_signal = RandomSignal::new(0, 100);
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let mut sin_signal = SinSignal::new(0.2, 3.0, 18.0);
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let mut sin_signal2 = SinSignal::new(0.1, 2.0, 10.0);
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let start = Instant::now();
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let mut counter = 1;
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let mut app = App {
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items: vec![
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"Item1", "Item2", "Item3", "Item4", "Item5", "Item6", "Item7", "Item8", "Item9",
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"Item10", "Item11", "Item12", "Item13", "Item14", "Item15", "Item16", "Item17",
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"Item18", "Item19", "Item20", "Item21", "Item22", "Item23", "Item24",
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],
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events: vec![
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("Event1", "INFO"),
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("Event2", "INFO"),
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("Event3", "CRITICAL"),
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("Event4", "ERROR"),
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("Event5", "INFO"),
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("Event6", "INFO"),
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("Event7", "WARNING"),
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("Event8", "INFO"),
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("Event9", "INFO"),
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("Event10", "INFO"),
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("Event11", "CRITICAL"),
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("Event12", "INFO"),
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("Event13", "INFO"),
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("Event14", "INFO"),
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("Event15", "INFO"),
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("Event16", "INFO"),
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("Event17", "ERROR"),
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("Event18", "ERROR"),
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("Event19", "INFO"),
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("Event20", "INFO"),
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("Event21", "WARNING"),
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("Event22", "INFO"),
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("Event23", "INFO"),
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("Event24", "WARNING"),
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("Event25", "INFO"),
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("Event26", "INFO"),
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],
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selected: 0,
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tabs: TabsState::new(vec!["Tab0", "Tab1"]),
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show_chart: true,
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progress: 0,
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data: rand_signal.by_ref().take(300).collect(),
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data2: sin_signal.by_ref().take(100).collect(),
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data3: sin_signal2.by_ref().take(200).collect(),
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data4: vec![
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("B1", 9),
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("B2", 12),
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("B3", 5),
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("B4", 8),
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("B5", 2),
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("B6", 4),
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("B7", 5),
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("B8", 9),
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("B9", 14),
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("B10", 15),
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("B11", 1),
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("B12", 0),
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("B13", 4),
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("B14", 6),
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("B15", 4),
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("B16", 6),
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("B17", 4),
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("B18", 7),
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("B19", 13),
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("B20", 8),
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("B21", 11),
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("B22", 9),
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("B23", 3),
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("B24", 5),
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],
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window: [0.0, 20.0],
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colors: [Color::Magenta, Color::Red],
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color_index: 0,
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servers: vec![
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Server {
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name: "NorthAmerica-1",
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location: "New York City",
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coords: (40.71, -74.00),
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status: "Up",
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},
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Server {
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name: "Europe-1",
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location: "Paris",
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coords: (48.85, 2.35),
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status: "Failure",
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},
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Server {
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name: "SouthAmerica-1",
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location: "São Paulo",
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coords: (-23.54, -46.62),
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status: "Up",
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},
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Server {
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name: "Asia-1",
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location: "Singapore",
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coords: (1.35, 103.86),
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status: "Up",
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},
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],
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};
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loop {
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// Draw UI
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terminal.draw(|mut f| {
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let chunks = Layout::default()
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.constraints([Constraint::Length(3), Constraint::Min(0)].as_ref())
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.split(f.size());
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Tabs::default()
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.block(Block::default().borders(Borders::ALL).title("Tabs"))
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.titles(&app.tabs.titles)
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.style(Style::default().fg(Color::Green))
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.highlight_style(Style::default().fg(Color::Yellow))
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.select(app.tabs.index)
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.render(&mut f, chunks[0]);
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match app.tabs.index {
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0 => draw_first_tab(&mut f, &app, chunks[1]),
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1 => draw_second_tab(&mut f, &app, chunks[1]),
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_ => {}
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};
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})?;
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// Check for user input
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match terminal.backend_mut().get_curses_window_mut().get_input() {
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Some(input) => {
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match input {
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easycurses::Input::Character('q') => break,
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easycurses::Input::KeyUp => {
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if app.selected > 0 {
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app.selected -= 1
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};
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}
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easycurses::Input::KeyDown => {
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if app.selected < app.items.len() - 1 {
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app.selected += 1;
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}
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}
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easycurses::Input::KeyLeft => {
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app.tabs.previous();
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}
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easycurses::Input::KeyRight => {
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app.tabs.next();
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}
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easycurses::Input::Character('t') => {
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app.show_chart = !app.show_chart;
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}
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_ => {}
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};
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}
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_ => {}
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};
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terminal.backend_mut().get_curses_window_mut().flush_input();
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if start.elapsed() > Duration::from_millis(250) * counter {
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app.progress += 5;
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if app.progress > 100 {
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app.progress = 0;
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}
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app.data.insert(0, rand_signal.next().unwrap());
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app.data.pop();
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for _ in 0..5 {
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app.data2.remove(0);
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app.data2.push(sin_signal.next().unwrap());
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}
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for _ in 0..10 {
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app.data3.remove(0);
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app.data3.push(sin_signal2.next().unwrap());
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}
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let i = app.data4.pop().unwrap();
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app.data4.insert(0, i);
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app.window[0] += 1.0;
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app.window[1] += 1.0;
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let i = app.events.pop().unwrap();
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app.events.insert(0, i);
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app.color_index += 1;
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if app.color_index >= app.colors.len() {
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app.color_index = 0;
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}
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counter += 1;
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};
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}
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Ok(())
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}
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fn draw_first_tab<B>(f: &mut Frame<B>, app: &App, area: Rect)
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where
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B: Backend,
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{
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let chunks = Layout::default()
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.constraints(
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[
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Constraint::Length(7),
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Constraint::Min(7),
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Constraint::Length(7),
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]
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.as_ref(),
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)
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.split(area);
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draw_gauges(f, app, chunks[0]);
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draw_charts(f, app, chunks[1]);
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draw_text(f, chunks[2]);
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}
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fn draw_gauges<B>(f: &mut Frame<B>, app: &App, area: Rect)
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where
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B: Backend,
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{
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let chunks = Layout::default()
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.constraints([Constraint::Length(2), Constraint::Length(3)].as_ref())
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.margin(1)
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.split(area);
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Block::default()
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.borders(Borders::ALL)
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.title("Graphs")
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.render(f, area);
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Gauge::default()
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.block(Block::default().title("Gauge:"))
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.style(
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Style::default()
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.fg(Color::Magenta)
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.bg(Color::Black)
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.modifier(Modifier::Italic),
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)
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.label(&format!("{} / 100", app.progress))
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.percent(app.progress)
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.render(f, chunks[0]);
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Sparkline::default()
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.block(Block::default().title("Sparkline:"))
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.style(Style::default().fg(Color::Green))
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.data(&app.data)
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.render(f, chunks[1]);
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}
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fn draw_charts<B>(f: &mut Frame<B>, app: &App, area: Rect)
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where
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B: Backend,
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{
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let constraints = if app.show_chart {
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vec![Constraint::Percentage(50), Constraint::Percentage(50)]
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} else {
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vec![Constraint::Percentage(100)]
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};
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let chunks = Layout::default()
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.constraints(constraints)
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.direction(Direction::Horizontal)
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.split(area);
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{
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let chunks = Layout::default()
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.constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref())
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.split(chunks[0]);
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{
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let chunks = Layout::default()
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.constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref())
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.direction(Direction::Horizontal)
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.split(chunks[0]);
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SelectableList::default()
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.block(Block::default().borders(Borders::ALL).title("List"))
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.items(&app.items)
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.select(Some(app.selected))
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.highlight_style(Style::default().fg(Color::Yellow).modifier(Modifier::Bold))
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.highlight_symbol(">")
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.render(f, chunks[0]);
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let info_style = Style::default().fg(Color::White);
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let warning_style = Style::default().fg(Color::Yellow);
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let error_style = Style::default().fg(Color::Magenta);
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let critical_style = Style::default().fg(Color::Red);
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let events = app.events.iter().map(|&(evt, level)| {
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Text::styled(
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format!("{}: {}", level, evt),
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match level {
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"ERROR" => error_style,
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"CRITICAL" => critical_style,
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"WARNING" => warning_style,
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_ => info_style,
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},
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)
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});
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List::new(events)
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.block(Block::default().borders(Borders::ALL).title("List"))
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.render(f, chunks[1]);
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}
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BarChart::default()
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.block(Block::default().borders(Borders::ALL).title("Bar chart"))
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.data(&app.data4)
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.bar_width(3)
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.bar_gap(2)
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.value_style(
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Style::default()
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.fg(Color::Black)
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.bg(Color::Green)
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.modifier(Modifier::Italic),
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)
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.label_style(Style::default().fg(Color::Yellow))
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.style(Style::default().fg(Color::Green))
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.render(f, chunks[1]);
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}
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if app.show_chart {
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Chart::default()
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.block(
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Block::default()
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.title("Chart")
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.title_style(Style::default().fg(Color::Cyan).modifier(Modifier::Bold))
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.borders(Borders::ALL),
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)
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.x_axis(
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Axis::default()
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.title("X Axis")
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.style(Style::default().fg(Color::Gray))
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.labels_style(Style::default().modifier(Modifier::Italic))
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.bounds(app.window)
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.labels(&[
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&format!("{}", app.window[0]),
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&format!("{}", (app.window[0] + app.window[1]) / 2.0),
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&format!("{}", app.window[1]),
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]),
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)
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.y_axis(
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Axis::default()
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.title("Y Axis")
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.style(Style::default().fg(Color::Gray))
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.labels_style(Style::default().modifier(Modifier::Italic))
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.bounds([-20.0, 20.0])
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.labels(&["-20", "0", "20"]),
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)
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.datasets(&[
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Dataset::default()
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.name("data2")
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.marker(Marker::Dot)
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.style(Style::default().fg(Color::Cyan))
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.data(&app.data2),
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Dataset::default()
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.name("data3")
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.marker(Marker::Braille)
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.style(Style::default().fg(Color::Yellow))
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.data(&app.data3),
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])
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.render(f, chunks[1]);
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}
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}
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fn draw_text<B>(f: &mut Frame<B>, area: Rect)
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where
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B: Backend,
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{
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let text = [
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Text::raw("This is a paragraph with several lines. You can change style your text the way you want.\n\nFox example: "),
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Text::styled("under", Style::default().fg(Color::Red)),
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Text::raw(" "),
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Text::styled("the", Style::default().fg(Color::Green)),
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Text::raw(" "),
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Text::styled("rainbow", Style::default().fg(Color::Blue)),
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Text::raw(".\nOh and if you didn't "),
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Text::styled("notice", Style::default().modifier(Modifier::Italic)),
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Text::raw(" you can "),
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Text::styled("automatically", Style::default().modifier(Modifier::Bold)),
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Text::raw(" "),
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Text::styled("wrap", Style::default().modifier(Modifier::Invert)),
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Text::raw(" your "),
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Text::styled("text", Style::default().modifier(Modifier::Underline)),
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Text::raw(".\nOne more thing is that it should display unicode characters: 10€ (but only on Windows, use the termion backend if you want to see them on Unix.)")
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];
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Paragraph::new(text.iter())
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.block(
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Block::default()
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.borders(Borders::ALL)
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.title("Footer")
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.title_style(Style::default().fg(Color::Magenta).modifier(Modifier::Bold)),
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)
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.wrap(true)
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.render(f, area);
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}
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fn draw_second_tab<B>(f: &mut Frame<B>, app: &App, area: Rect)
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where
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B: Backend,
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{
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let chunks = Layout::default()
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.constraints([Constraint::Percentage(30), Constraint::Percentage(70)].as_ref())
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.direction(Direction::Horizontal)
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.split(area);
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let up_style = Style::default().fg(Color::Green);
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let failure_style = Style::default().fg(Color::Red);
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let header = ["Server", "Location", "Status"];
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let rows = app.servers.iter().map(|s| {
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let style = if s.status == "Up" {
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up_style
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} else {
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failure_style
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};
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Row::StyledData(vec![s.name, s.location, s.status].into_iter(), style)
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});
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Table::new(header.into_iter(), rows)
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.block(Block::default().title("Servers").borders(Borders::ALL))
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.header_style(Style::default().fg(Color::Yellow))
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.widths(&[15, 15, 10])
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.render(f, chunks[0]);
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Canvas::default()
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.block(Block::default().title("World").borders(Borders::ALL))
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.paint(|ctx| {
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ctx.draw(&Map {
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color: Color::White,
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resolution: MapResolution::High,
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});
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ctx.layer();
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ctx.draw(&Rectangle {
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rect: Rect {
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x: 0,
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y: 30,
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width: 10,
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height: 10,
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},
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color: Color::Yellow,
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});
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for (i, s1) in app.servers.iter().enumerate() {
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for s2 in &app.servers[i + 1..] {
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ctx.draw(&Line {
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x1: s1.coords.1,
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y1: s1.coords.0,
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y2: s2.coords.0,
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x2: s2.coords.1,
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color: Color::Yellow,
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});
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}
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}
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for server in &app.servers {
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let color = if server.status == "Up" {
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Color::Green
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} else {
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Color::Red
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};
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ctx.print(server.coords.1, server.coords.0, "X", color);
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}
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})
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.x_bounds([-180.0, 180.0])
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.y_bounds([-90.0, 90.0])
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.render(f, chunks[1]);
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}
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