apognu/tuigreet
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Trying to only render when necessary to limit CPU usage (#113).

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Antoine POPINEAU 2023-11-04 19:36:37 +01:00
parent 04d7a655b8
commit 158a98e85d
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GPG Key ID: E8379674E92D25D2
2 changed files with 3 additions and 7 deletions
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8
src/event.rs
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@ -4,13 +4,11 @@ use crossterm::event::{Event as TermEvent, EventStream, KeyEvent};
use futures::{future::FutureExt, StreamExt};
use tokio::sync::mpsc;
const TICK_RATE: u64 = 150;
const FRAME_RATE: f64 = 60.0;
const FRAME_RATE: f64 = 2.0;
pub enum Event {
Key(KeyEvent),
Render,
Tick,
}
pub struct Events {
@ -24,10 +22,8 @@ impl Events {
tokio::task::spawn(async move {
let mut stream = EventStream::new();
let mut render_interval = tokio::time::interval(Duration::from_secs_f64(1.0 / FRAME_RATE));
let mut tick_interval = tokio::time::interval(Duration::from_millis(TICK_RATE));
loop {
let tick = tick_interval.tick();
let render = render_interval.tick();
let event = stream.next().fuse();
@ -35,11 +31,11 @@ impl Events {
event = event => {
if let Some(Ok(TermEvent::Key(event))) = event {
let _ = tx.send(Event::Key(event)).await;
let _ = tx.send(Event::Render).await;
}
}
_ = render => { let _ = tx.send(Event::Render).await; },
_ = tick => { let _ = tx.send(Event::Tick).await; },
}
}
});

2
src/main.rs
View File

@ -96,7 +96,7 @@ async fn run() -> Result<(), Box<dyn Error>> {
match events.next().await {
Some(Event::Render) => ui::draw(greeter.clone(), &mut terminal).await?,
Some(Event::Key(key)) => keyboard::handle(greeter.clone(), key, ipc.clone()).await?,
Some(Event::Tick) | None => {}
_ => {}
}
}
}