mirror of https://github.com/emilk/egui.git
Emil Ernerfeldt
3 years ago
committed by
GitHub
GitHub
20 changed files with 304 additions and 9 deletions
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Examples of how to use [`eframe`](https://github.com/emilk/egui/tree/master/eframe) and [`egui`](https://github.com/emilk/egui/). |
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[package] |
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name = "puffin_profiler" |
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version = "0.1.0" |
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authors = ["Emil Ernerfeldt <emil.ernerfeldt@gmail.com>"] |
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license = "MIT OR Apache-2.0" |
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edition = "2021" |
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rust-version = "1.60" |
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publish = false |
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[dependencies] |
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eframe = { path = "../../eframe", features = ["puffin"] } |
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puffin = "0.13" |
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puffin_http = "0.10" |
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Example how to use the [puffin profiler](https://github.com/EmbarkStudios/puffin) with an `eframe` app. |
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```sh |
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cargo run -p puffin_profiler & |
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cargo install puffin_viewer |
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puffin_viewer --url 127.0.0.1:8585 |
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``` |
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#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")] // hide console window on Windows in release
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use eframe::egui; |
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fn main() { |
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start_puffin_server(); // NOTE: you may only want to call this if the users specifies some flag or clicks a button!
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let options = eframe::NativeOptions::default(); |
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eframe::run_native( |
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"My egui App", |
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options, |
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Box::new(|_cc| Box::new(MyApp::default())), |
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); |
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} |
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#[derive(Default)] |
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struct MyApp {} |
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impl eframe::App for MyApp { |
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fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) { |
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egui::CentralPanel::default().show(ctx, |ui| { |
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ui.heading("Example of how to use the puffin profiler with egui"); |
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ui.separator(); |
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let cmd = "cargo install puffin_viewer && puffin_viewer --url 127.0.0.1:8585"; |
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ui.label("To connect, run this:"); |
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ui.horizontal(|ui| { |
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ui.monospace(cmd); |
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if ui.small_button("📋").clicked() { |
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ui.output().copied_text = cmd.into(); |
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} |
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}); |
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ui.separator(); |
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ui.label("Note that this app runs in 'reactive' mode, so you must interact with the app for new profile events to be sent. Waving the mouse over this window is enough."); |
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if ui |
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.button( |
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"Click to sleep a bit. That should be visible as a spike in the profiler view!", |
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) |
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.clicked() |
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{ |
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puffin::profile_scope!("sleep"); |
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std::thread::sleep(std::time::Duration::from_millis(50)); |
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} |
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}); |
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} |
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} |
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fn start_puffin_server() { |
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puffin::set_scopes_on(true); // tell puffin to collect data
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match puffin_http::Server::new("0.0.0.0:8585") { |
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Ok(puffin_server) => { |
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eprintln!("Run: cargo install puffin_viewer && puffin_viewer --url 127.0.0.1:8585"); |
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// We can store the server if we want, but in this case we just want
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// it to keep running. Dropping it closes the server, so let's not drop it!
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#[allow(clippy::mem_forget)] |
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std::mem::forget(puffin_server); |
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} |
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Err(err) => { |
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eprintln!("Failed to start puffin server: {}", err); |
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} |
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}; |
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} |
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