Add a window options demo

egui_demo_lib/src/apps/demo/demo_windows.rs

@@ -18,6 +18,7 @@ impl Default for Demos {
                 (false, Box::new(super::DancingStrings::default())),
                 (false, Box::new(super::DragAndDropDemo::default())),
                 (false, Box::new(super::Tests::default())),
+                (false, Box::new(super::WindowOptions::default())),
             ],
         }
     }
@@ -54,7 +55,7 @@ impl DemoWindows {
     /// Show the app ui (menu bar and windows).
     /// `sidebar_ui` can be used to optionally show some things in the sidebar
     pub fn ui(&mut self, ctx: &CtxRef) {
-        egui::SidePanel::left("side_panel", 190.0).show(ctx, |ui| {
+        egui::SidePanel::left("side_panel", 200.0).show(ctx, |ui| {
             ui.heading("✒ Egui Demo");
 
             ui.separator();

egui_demo_lib/src/apps/demo/mod.rs

@@ -18,11 +18,12 @@ mod sliders;
 mod tests;
 pub mod toggle_switch;
 mod widgets;
+mod window_options;
 
 pub use {
     app::*, dancing_strings::DancingStrings, demo_window::DemoWindow, demo_windows::*,
     drag_and_drop::*, font_book::FontBook, painting::Painting, scrolls::Scrolls, sliders::Sliders,
-    tests::Tests, widgets::Widgets,
+    tests::Tests, widgets::Widgets, window_options::WindowOptions,
 };
 
 // ----------------------------------------------------------------------------

egui_demo_lib/src/apps/demo/window_options.rs

@@ -0,0 +1,73 @@
+use crate::__egui_github_link_file;
+
+#[derive(Clone, PartialEq, serde::Deserialize, serde::Serialize)]
+pub struct WindowOptions {
+    title: String,
+    title_bar: bool,
+    collapsible: bool,
+    resizable: bool,
+    scroll: bool,
+}
+
+impl Default for WindowOptions {
+    fn default() -> Self {
+        Self {
+            title: "🗖 Window Options".to_owned(),
+            title_bar: true,
+            collapsible: true,
+            resizable: true,
+            scroll: false,
+        }
+    }
+}
+
+impl super::Demo for WindowOptions {
+    fn name(&self) -> &str {
+        // "🗖 Window Options"
+        &self.title
+    }
+
+    fn show(&mut self, ctx: &egui::CtxRef, open: &mut bool) {
+        let Self {
+            title,
+            title_bar,
+            collapsible,
+            resizable,
+            scroll,
+        } = self.clone();
+
+        use super::View;
+        egui::Window::new(title)
+            .id(egui::Id::new("demo_window_options")) // required since we change the title
+            .open(open)
+            .resizable(resizable)
+            .collapsible(collapsible)
+            .title_bar(title_bar)
+            .scroll(scroll)
+            .show(ctx, |ui| self.ui(ui));
+    }
+}
+
+impl super::View for WindowOptions {
+    fn ui(&mut self, ui: &mut egui::Ui) {
+        egui::reset_button(ui, self);
+
+        let Self {
+            title,
+            title_bar,
+            collapsible,
+            resizable,
+            scroll,
+        } = self;
+
+        ui.horizontal(|ui| {
+            ui.label("title:");
+            ui.text_edit_singleline(title);
+        });
+        ui.checkbox(title_bar, "title_bar");
+        ui.checkbox(collapsible, "collapsible");
+        ui.checkbox(resizable, "resizable");
+        ui.checkbox(scroll, "scroll");
+        ui.add(__egui_github_link_file!());
+    }
+}