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[glium] implement reactive run mode

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This commit is contained in:
Emil Ernerfeldt
2020-07-22 22:26:49 +02:00
parent a14bfa0e73
commit 48bad68257
3 changed files with 63 additions and 17 deletions
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34
example_glium/src/main.rs
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@@ -1,13 +1,14 @@
#![deny(warnings)]
#![warn(clippy::all)]
use egui_glium::{persistence::Persistence, Runner};
use egui_glium::{persistence::Persistence, RunMode, Runner};
const APP_KEY: &str = "app";
#[derive(Default, serde::Deserialize, serde::Serialize)]
struct MyApp {
egui_example_app: egui::ExampleApp,
frames_painted: u64,
}
impl egui_glium::App for MyApp {
@@ -25,12 +26,35 @@ impl egui_glium::App for MyApp {
ui.add(
label!(
"CPU usage: {:.2} ms (excludes painting)",
1e3 * runner.cpu_usage()
"CPU usage: {:.2} ms / frame (excludes painting)",
1e3 * runner.cpu_time()
)
.text_style(TextStyle::Monospace),
);
ui.add(label!("FPS: {:.1}", runner.fps()).text_style(TextStyle::Monospace));
ui.separator();
ui.horizontal(|ui| {
let mut run_mode = runner.run_mode();
ui.label("Run mode:");
ui.radio_value("Continuous", &mut run_mode, RunMode::Continuous)
.tooltip_text("Repaint everything each frame");
ui.radio_value("Reactive", &mut run_mode, RunMode::Reactive)
.tooltip_text("Repaint when there are animations or input (e.g. mouse movement)");
runner.set_run_mode(run_mode);
});
if runner.run_mode() == RunMode::Continuous {
ui.add(
label!("Repainting the UI each frame. FPS: {:.1}", runner.fps())
.text_style(TextStyle::Monospace),
);
} else {
ui.label("Only running UI code when there are animations or input");
}
self.frames_painted += 1;
ui.label(format!("Total frames painted: {}", self.frames_painted));
}
fn on_exit(&mut self, persistence: &mut Persistence) {
@@ -42,5 +66,5 @@ fn main() {
let title = "Egui glium example";
let persistence = Persistence::from_path(".egui_example_glium.json".into());
let app: MyApp = persistence.get_value(APP_KEY).unwrap_or_default();
egui_glium::run(title, persistence, app);
egui_glium::run(title, RunMode::Reactive, persistence, app);
}