feat: hamburger menu with popover

dot-matrix/src/main.rs

@@ -3,7 +3,10 @@ mod font;
 use crate::font::Font; // this brings in the struct Font
 use gtk::cairo::Context;
 use gtk::prelude::*;
-use gtk::{Application, ApplicationWindow, DrawingArea};
+use gtk::{
+    Application, ApplicationWindow, DrawingArea, HeaderBar, Label, ListBox, ListBoxRow, MenuButton,
+    Popover,
+};
 
 fn main() {
     let app = Application::builder()
@@ -22,6 +25,42 @@ fn build_ui(app: &gtk::Application) {
         .default_height(800)
         .build();
 
+    // HeaderBar
+    let header_bar = HeaderBar::new();
+    window.set_titlebar(Some(&header_bar));
+
+    // MenuButton
+    let menu_button = MenuButton::new();
+    menu_button.set_icon_name("open-menu-symbolic");
+    header_bar.pack_start(&menu_button);
+
+    // Popover
+    let popover = Popover::new();
+    popover.set_parent(&menu_button);
+    menu_button.set_popover(Some(&popover));
+
+    // ListBox in popover
+    let list_box = ListBox::new();
+    list_box.set_selection_mode(gtk::SelectionMode::None); // No selection on menu items
+
+    // Add menu items (ListBoxRows with Labels)
+    let item1_row = ListBoxRow::new();
+    let item1_label = Label::new(Some("Settings"));
+    item1_row.set_child(Some(&item1_label));
+    list_box.append(&item1_row);
+
+    let item2_row = ListBoxRow::new();
+    let item2_label = Label::new(Some("Help"));
+    item2_row.set_child(Some(&item2_label));
+    list_box.append(&item2_row);
+
+    let item3_row = ListBoxRow::new();
+    let item3_label = Label::new(Some("About"));
+    item3_row.set_child(Some(&item3_label));
+    list_box.append(&item3_row);
+
+    popover.set_child(Some(&list_box)); // Set the ListBox as the child of the Popover
+
     let drawing_area = DrawingArea::new();
 
     let rows = 100 as u8;