laughable first steps with egui

Cargo.toml

@@ -28,9 +28,11 @@ members = [
   "members/statusline",
   "members/clap-repl-demo",
   "members/arithmetics",
+  "members/egui-demo",
 ]
 default-members = [
   ".",
+  "members/egui-demo",
   "members/arithmetics",
   "members/statusline",
   "members/ptlog",

members/egui-demo/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "egui-demo"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow.workspace = true
+eframe = "0.28.1"
+egui = "0.28.1"

members/egui-demo/src/main.rs

@@ -0,0 +1,22 @@
+fn main() -> eframe::Result {
+    // Our application state:
+    let mut name = "Arthur".to_owned();
+    let mut age = 42;
+
+    let options = eframe::NativeOptions::default();
+    eframe::run_simple_native("My egui App", options, move |ctx, _frame| {
+        egui::CentralPanel::default().show(ctx, |ui| {
+            ui.heading("My egui Application");
+            ui.horizontal(|ui| {
+                let name_label = ui.label("Your name: ");
+                ui.text_edit_singleline(&mut name)
+                    .labelled_by(name_label.id);
+            });
+            ui.add(egui::Slider::new(&mut age, 0..=120).text("age"));
+            if ui.button("Increment").clicked() {
+                age += 1;
+            }
+            ui.label(format!("Hello '{name}', age {age}"));
+        });
+    })
+}