Add additional cases and the egui inspectors to the `test_ui_stack` example (#4992)

Improvement: test_ui_stack

---------

Co-authored-by: Antoine Beyeler <49431240+abey79@users.noreply.github.com>

tests/test_ui_stack/src/main.rs

@@ -24,12 +24,17 @@ fn main() -> eframe::Result {
 }
 
 #[derive(Default)]
-struct MyApp {}
+struct MyApp {
+    show_settings: bool,
+    show_inspection: bool,
+    show_memory: bool,
+}
 
 impl eframe::App for MyApp {
     fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
         ctx.style_mut(|style| style.interaction.tooltip_delay = 0.0);
-        egui::SidePanel::right("side_panel").show(ctx, |ui| {
+
+        egui::SidePanel::left("side_panel_left").show(ctx, |ui| {
             ui.heading("Information");
             ui.label(
                 "This is a demo/test environment of the `UiStack` feature. The tables display \
@@ -39,6 +44,10 @@ impl eframe::App for MyApp {
                 highlighting. Hover to see them in action!",
             );
             ui.add_space(10.0);
+            ui.checkbox(&mut self.show_settings, "🔧 Settings");
+            ui.checkbox(&mut self.show_inspection, "🔍 Inspection");
+            ui.checkbox(&mut self.show_memory, "📝 Memory");
+            ui.add_space(10.0);
             if ui.button("Reset egui memory").clicked() {
                 ctx.memory_mut(|mem| *mem = Default::default());
             }
@@ -77,12 +86,8 @@ impl eframe::App for MyApp {
             });
         });
 
-        egui::TopBottomPanel::bottom("bottom_panel")
+        egui::SidePanel::right("side_panel_right").show(ctx, |ui| {
-            .resizable(true)
+            egui::ScrollArea::both().auto_shrink(false).show(ui, |ui| {
-            .show(ctx, |ui| {
-                egui::ScrollArea::vertical()
-                    .auto_shrink(false)
-                    .show(ui, |ui| {
                 stack_ui(ui);
 
                 // full span test
@@ -92,9 +97,7 @@ impl eframe::App for MyApp {
         });
 
         egui::CentralPanel::default().show(ctx, |ui| {
-            egui::ScrollArea::vertical()
+            egui::ScrollArea::both().auto_shrink(false).show(ui, |ui| {
-                .auto_shrink(false)
-                .show(ui, |ui| {
                 ui.label("stack here:");
                 stack_ui(ui);
 
@@ -173,6 +176,20 @@ impl eframe::App for MyApp {
             });
         });
 
+        egui::TopBottomPanel::bottom("bottom_panel")
+            .resizable(true)
+            .show(ctx, |ui| {
+                egui::ScrollArea::vertical()
+                    .auto_shrink(false)
+                    .show(ui, |ui| {
+                        stack_ui(ui);
+
+                        // full span test
+                        ui.add_space(20.0);
+                        full_span_widget(ui, false);
+                    });
+            });
+
         egui::Window::new("Window")
             .pivot(egui::Align2::RIGHT_TOP)
             .show(ctx, |ui| {
@@ -180,6 +197,27 @@ impl eframe::App for MyApp {
                 ui.add_space(20.0);
                 stack_ui(ui);
             });
+
+        egui::Window::new("🔧 Settings")
+            .open(&mut self.show_settings)
+            .vscroll(true)
+            .show(ctx, |ui| {
+                ctx.settings_ui(ui);
+            });
+
+        egui::Window::new("🔍 Inspection")
+            .open(&mut self.show_inspection)
+            .vscroll(true)
+            .show(ctx, |ui| {
+                ctx.inspection_ui(ui);
+            });
+
+        egui::Window::new("📝 Memory")
+            .open(&mut self.show_memory)
+            .resizable(false)
+            .show(ctx, |ui| {
+                ctx.memory_ui(ui);
+            });
     }
 }