switch to egui and do basic template

Cargo.toml

@@ -3,7 +3,11 @@ name = "rust-gui-experiments"
 version = "0.1.0"
 edition = "2021"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
-iced = "0.5.2"
+egui = "0.19.0"
+eframe = { version = "0.19.0", features = ["persistence"] }
+serde = { version = "1.0", features = ["derive"] }
+toml = "0.5.9"
+
+[profile.dev.package."*"]
+opt-level = 2

src/gui.rs

@@ -0,0 +1,54 @@
+use serde::{Serialize, Deserialize};
+
+use eframe::App;
+
+#[derive(Serialize, Deserialize)]
+#[serde(default)]
+pub struct Application
+{
+    label: String
+}
+
+impl Default for Application
+{
+    fn default() -> Self {
+        Self {
+            label: "Example".to_owned()
+        }
+    }
+}
+
+impl Application {
+    pub fn new(cc: &eframe::CreationContext<'_>) -> Self {
+        cc.egui_ctx.set_visuals(egui::Visuals::dark());
+
+        if let Some(storage) = cc.storage {
+            return eframe::get_value(storage, eframe::APP_KEY).unwrap_or_default();
+        }
+
+        Default::default()
+    }
+}
+
+impl App for Application {
+    fn save(&mut self, storage: &mut dyn eframe::Storage) {
+        eframe::set_value(storage, eframe::APP_KEY, self);
+    }
+
+    fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
+        egui::TopBottomPanel::top("top_panel").show(ctx, |ui| {
+            egui::menu::bar(ui, |ui| {
+                ui.menu_button("File", |ui| {
+                    if ui.button("Quit").clicked() {
+                        _frame.close();
+                    }
+                });
+            });
+        });
+
+        egui::CentralPanel::default().show(ctx, |ui| {
+            ui.heading("Hello, world!");
+            egui::warn_if_debug_build(ui);
+        });
+    }
+}

src/main.rs

@@ -1,3 +1,12 @@
+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")] // hide console window on Windows in release
+
+mod gui;
+
 fn main() {
-    println!("Hello, world!");
-}
+    let native_options = eframe::NativeOptions::default();
+    eframe::run_native(
+        "Hello Application",
+        native_options,
+        Box::new(|cc| Box::new(gui::Application::new(cc))),
+    );
+}