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Add help line to top

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This commit is contained in:
Herbert Wolverson 2024-05-13 14:41:11 -05:00
parent 0c30eb5b8f
commit 0c8916400d
3 changed files with 31 additions and 0 deletions
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8
src/rust/lqtop/src/top_level_ui.rs
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@ -9,6 +9,7 @@ use crate::{bus::BusMessage, widgets::*};
use ratatui::prelude::*;
use tokio::sync::mpsc::Sender;
use std::io::Stdout;
use crate::widgets::help::help_display;
use self::{top_flows::TopFlows, top_hosts::TopHosts};
@ -73,6 +74,12 @@ impl TopUi {
let mut next_region = 0;
// Build the layout regions
let help_region = {
constraints.push(Constraint::Length(1));
next_region += 1;
next_region - 1
};
let cpu_region = if self.show_cpus {
constraints.push(Constraint::Length(1));
next_region += 1;
@ -95,6 +102,7 @@ impl TopUi {
let main_layout = Layout::new(Direction::Vertical, constraints).split(frame.size());
// Add Widgets
frame.render_widget(help_display(), main_layout[help_region]);
if self.show_cpus {
frame.render_widget(cpu_display(), main_layout[cpu_region]);
}

22
src/rust/lqtop/src/widgets/help.rs Normal file
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@ -0,0 +1,22 @@
use ratatui::prelude::*;
use ratatui::widgets::{Block, Borders};
fn keyhelp(key: char, action: &'static str, buf: &mut Vec<Span>) {
buf.push(Span::styled("[", Style::default().fg(Color::Green)));
buf.push(Span::styled(key.to_string(), Style::default().fg(Color::Green)));
buf.push(Span::styled("] ", Style::default().fg(Color::Green)));
buf.push(Span::styled(action, Style::default().fg(Color::Yellow)));
buf.push(Span::styled(" ", Style::default().fg(Color::Green)));
}
pub fn help_display() -> impl Widget {
let mut span_buf = vec![
Span::styled("LQTOP - ", Style::default().fg(Color::White)),
];
keyhelp('q', "Quit", &mut span_buf);
keyhelp('c', "CPUs", &mut span_buf);
keyhelp('n', "Network", &mut span_buf);
keyhelp('h', "Hosts", &mut span_buf);
keyhelp('f', "Flows", &mut span_buf);
Block::new().borders(Borders::NONE).title(span_buf)
}

1
src/rust/lqtop/src/widgets/mod.rs
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@ -7,6 +7,7 @@ pub use network_sparkline::*;
use ratatui::{layout::Rect, Frame};
pub mod top_hosts;
pub mod top_flows;
pub mod help;
pub enum MainWidget {
Hosts,