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|
use tui::{
layout::{Constraint, Direction, Layout},
style::{Color, Modifier, Style},
widgets::{Axis, Block, Borders, Chart, Dataset, Marker, Row, Table, Widget},
Terminal,
};
use crate::{app, utils::error};
const COLOUR_LIST : [Color; 6] = [Color::Red, Color::Green, Color::LightYellow, Color::LightBlue, Color::LightCyan, Color::LightMagenta];
const TEXT_COLOUR : Color = Color::Gray;
const GRAPH_COLOUR : Color = Color::Gray;
const BORDER_STYLE_COLOUR : Color = Color::Gray;
const GRAPH_MARKER : Marker = Marker::Braille;
#[derive(Default)]
pub struct CanvasData {
pub rx_display : String,
pub tx_display : String,
pub network_data_rx : Vec<(f64, f64)>,
pub network_data_tx : Vec<(f64, f64)>,
pub disk_data : Vec<Vec<String>>,
pub temp_sensor_data : Vec<Vec<String>>,
pub process_data : Vec<Vec<String>>,
pub mem_data : Vec<(f64, f64)>,
pub swap_data : Vec<(f64, f64)>,
pub cpu_data : Vec<(String, Vec<(f64, f64)>)>,
}
pub fn draw_data<B : tui::backend::Backend>(terminal : &mut Terminal<B>, app_data : &app::App, canvas_data : &CanvasData) -> error::Result<()> {
let border_style : Style = Style::default().fg(BORDER_STYLE_COLOUR);
let temperature_rows = canvas_data
.temp_sensor_data
.iter()
.map(|sensor| Row::StyledData(sensor.iter(), Style::default().fg(TEXT_COLOUR)));
let disk_rows = canvas_data.disk_data.iter().map(|disk| Row::StyledData(disk.iter(), Style::default().fg(TEXT_COLOUR)));
let process_rows = canvas_data
.process_data
.iter()
.map(|process| Row::StyledData(process.iter(), Style::default().fg(TEXT_COLOUR)));
terminal.draw(|mut f| {
debug!("Drawing!");
let vertical_chunks = Layout::default()
.direction(Direction::Vertical)
.margin(1)
.constraints([Constraint::Percentage(34), Constraint::Percentage(34), Constraint::Percentage(33)].as_ref())
.split(f.size());
let middle_chunks = Layout::default()
.direction(Direction::Horizontal)
.margin(0)
.constraints([Constraint::Percentage(65), Constraint::Percentage(35)].as_ref())
.split(vertical_chunks[1]);
let middle_divided_chunk_2 = Layout::default()
.direction(Direction::Vertical)
.margin(0)
.constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref())
.split(middle_chunks[1]);
let bottom_chunks = Layout::default()
.direction(Direction::Horizontal)
.margin(0)
.constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref())
.split(vertical_chunks[2]);
// Set up blocks and their components
// CPU usage graph
{
let x_axis : Axis<String> = Axis::default().style(Style::default().fg(GRAPH_COLOUR)).bounds([0.0, 600_000.0]);
let y_axis = Axis::default().style(Style::default().fg(GRAPH_COLOUR)).bounds([-0.5, 100.5]).labels(&["0%", "100%"]);
let mut dataset_vector : Vec<Dataset> = Vec::new();
for (i, cpu) in canvas_data.cpu_data.iter().enumerate() {
let mut avg_cpu_exist_offset = 0;
if app_data.show_average_cpu {
if i == 0 {
// Skip, we want to render the average cpu last!
continue;
}
else {
avg_cpu_exist_offset = 1;
}
}
dataset_vector.push(
Dataset::default()
.name(&cpu.0)
.marker(GRAPH_MARKER)
.style(Style::default().fg(COLOUR_LIST[i - avg_cpu_exist_offset % COLOUR_LIST.len()]))
.data(&(cpu.1)),
);
}
if !canvas_data.cpu_data.is_empty() && app_data.show_average_cpu {
dataset_vector.push(
Dataset::default()
.name(&canvas_data.cpu_data[0].0)
.marker(GRAPH_MARKER)
.style(Style::default().fg(COLOUR_LIST[canvas_data.cpu_data.len() - 1 % COLOUR_LIST.len()]))
.data(&(canvas_data.cpu_data[0].1)),
);
}
Chart::default()
.block(Block::default().title("CPU Usage").borders(Borders::ALL).border_style(border_style))
.x_axis(x_axis)
.y_axis(y_axis)
.datasets(&dataset_vector)
.render(&mut f, vertical_chunks[0]);
}
//Memory usage graph
{
let x_axis : Axis<String> = Axis::default().style(Style::default().fg(GRAPH_COLOUR)).bounds([0.0, 600_000.0]);
let y_axis = Axis::default().style(Style::default().fg(GRAPH_COLOUR)).bounds([-0.5, 100.5]).labels(&["0%", "100%"]); // Offset as the zero value isn't drawn otherwise...
Chart::default()
.block(Block::default().title("Memory Usage").borders(Borders::ALL).border_style(border_style))
.x_axis(x_axis)
.y_axis(y_axis)
.datasets(&[
Dataset::default()
.name(&("RAM:".to_string() + &format!("{:3}%", (canvas_data.mem_data.last().unwrap_or(&(0_f64, 0_f64)).1.round() as u64))))
.marker(GRAPH_MARKER)
.style(Style::default().fg(Color::LightBlue))
.data(&canvas_data.mem_data),
Dataset::default()
.name(&("SWP:".to_string() + &format!("{:3}%", (canvas_data.swap_data.last().unwrap_or(&(0_f64, 0_f64)).1.round() as u64))))
.marker(GRAPH_MARKER)
.style(Style::default().fg(Color::LightYellow))
.data(&canvas_data.swap_data),
])
.render(&mut f, middle_chunks[0]);
}
// Temperature table
{
let width = f64::from(middle_divided_chunk_2[0].width);
Table::new(["Sensor", "Temp"].iter(), temperature_rows)
.block(Block::default().title("Temperatures").borders(Borders::ALL).border_style(border_style))
.header_style(Style::default().fg(Color::LightBlue))
.widths(&[(width * 0.45) as u16, (width * 0.4) as u16])
.render(&mut f, middle_divided_chunk_2[0]);
}
// Disk usage table
{
// TODO: We have to dynamically remove some of these table elements based on size...
let width = f64::from(middle_divided_chunk_2[1].width);
Table::new(["Disk", "Mount", "Used", "Total", "Free", "R/s", "W/s"].iter(), disk_rows)
.block(Block::default().title("Disk Usage").borders(Borders::ALL).border_style(border_style))
.header_style(Style::default().fg(Color::LightBlue).modifier(Modifier::BOLD))
.widths(&[
// Must make sure these are NEVER zero! It will fail to display! Seems to only be this...
(width * 0.2) as u16 + 1,
(width * 0.2) as u16 + 1,
(width * 0.1) as u16 + 1,
(width * 0.1) as u16 + 1,
(width * 0.1) as u16 + 1,
(width * 0.1) as u16 + 1,
(width * 0.1) as u16 + 1,
])
.render(&mut f, middle_divided_chunk_2[1]);
}
// Network graph
{
let x_axis : Axis<String> = Axis::default().style(Style::default().fg(GRAPH_COLOUR)).bounds([0.0, 600_000.0]);
let y_axis = Axis::default().style(Style::default().fg(GRAPH_COLOUR)).bounds([-0.5, 1_000_000.5]).labels(&["0GB", "1GB"]);
Chart::default()
.block(Block::default().title("Network").borders(Borders::ALL).border_style(border_style))
.x_axis(x_axis)
.y_axis(y_axis)
.datasets(&[
Dataset::default()
.name(&(canvas_data.rx_display))
.marker(GRAPH_MARKER)
.style
|
