egui_graphs basic example

crate is ready

.gitignore

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+/target

Cargo.toml

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+[package]
+name = "brainwave"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+eframe = "0.32"
+egui = "0.32"
+egui_graphs = "0.28.0"
+petgraph = "0.8.3"

src/main.rs

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+use eframe::{App, CreationContext, NativeOptions, run_native};
+use egui::Context;
+use egui_graphs::{DefaultGraphView, Graph};
+use petgraph::stable_graph::StableGraph;
+
+pub struct BasicApp {
+    g: Graph,
+}
+
+impl BasicApp {
+    fn new(_: &CreationContext<'_>) -> Self {
+        let g = generate_graph();
+        Self { g: Graph::from(&g) }
+    }
+}
+
+impl App for BasicApp {
+    fn update(&mut self, ctx: &Context, _: &mut eframe::Frame) {
+        egui::CentralPanel::default().show(ctx, |ui| {
+            ui.add(&mut DefaultGraphView::new(&mut self.g));
+        });
+    }
+}
+
+fn generate_graph() -> StableGraph<(), ()> {
+    let mut g = StableGraph::new();
+
+    let a = g.add_node(());
+    let b = g.add_node(());
+    let c = g.add_node(());
+
+    g.add_edge(a, b, ());
+    g.add_edge(b, c, ());
+    g.add_edge(c, a, ());
+
+    g
+}
+
+fn main() {
+    run_native(
+        "basic",
+        NativeOptions::default(),
+        Box::new(|cc| Ok(Box::new(BasicApp::new(cc)))),
+    )
+    .unwrap();
+}