1public class MyWindow : Gtk.ApplicationWindow { 2 3 internal MyWindow (MyApplication app) { 4 Object (application: app, title: "MenuButton Example"); 5 this.set_default_size (600, 400); 6 var grid = new Gtk.Grid (); 7 8 var menubutton = new Gtk.MenuButton(); 9 menubutton.set_size_request (80, 35); 10 11 var menumodel = new Menu (); 12 menumodel.append ("New", "app.new"); 13 menumodel.append ("About", "win.about"); 14 15 /* We create the last item as a MenuItem, so that 16 * a submenu can be appended to this menu item. 17 */ 18 var submenu = new Menu (); 19 menumodel.append_submenu ("Other", submenu); 20 submenu.append ("Quit", "app.quit"); 21 menubutton.set_menu_model (menumodel); 22 23 var about_action = new SimpleAction ("about", null); 24 about_action.activate.connect (this.about_cb); 25 this.add_action (about_action); 26 27 this.add(grid); 28 grid.attach(menubutton, 0, 0, 1, 1); 29 } 30 31 void about_cb (SimpleAction simple, Variant? parameter) { 32 print ("You clicked \"About\"\n"); 33 } 34} 35 36public class MyApplication : Gtk.Application { 37 protected override void activate () { 38 new MyWindow (this).show_all (); 39 } 40 41 internal MyApplication () { 42 Object (application_id: "org.example.MyApplication"); 43 } 44 45 /* Override the 'startup' signal of GLib.Application. */ 46 protected override void startup () { 47 base.startup (); 48 49 var new_action = new SimpleAction ("new", null); 50 new_action.activate.connect (this.new_cb); 51 this.add_action (new_action); 52 53 var quit_action = new SimpleAction ("quit", null); 54 quit_action.activate.connect (this.quit); 55 this.add_action (quit_action); 56 } 57 58 void new_cb (SimpleAction simple, Variant? parameter) { 59 print ("You clicked \"New\"\n"); 60 } 61} 62 63public int main (string[] args) { 64 return new MyApplication ().run (args); 65} 66