public void RegisterActions(Gtk.Application app, GLib.Menu menu)
{
var zoom_section = new GLib.Menu();
menu.AppendSection(null, zoom_section);
app.AddAccelAction(ZoomIn, new[] { "<Primary>plus", "<Primary>equal", "equal", "<Primary>KP_Add", "KP_Add" });
zoom_section.AppendItem(ZoomIn.CreateMenuItem());
app.AddAccelAction(ZoomOut, new[] { "<Primary>minus", "<Primary>underscore", "minus", "<Primary>KP_Subtract", "KP_Subtract" });
zoom_section.AppendItem(ZoomOut.CreateMenuItem());
app.AddAccelAction(ActualSize, new[] { "<Primary>0", "<Primary><Shift>A" });
zoom_section.AppendItem(ActualSize.CreateMenuItem());
app.AddAccelAction(ZoomToWindow, "<Primary>B");
zoom_section.AppendItem(ZoomToWindow.CreateMenuItem());
app.AddAccelAction(Fullscreen, "F11");
zoom_section.AppendItem(Fullscreen.CreateMenuItem());
var metric_section = new GLib.Menu();
menu.AppendSection(null, metric_section);
var metric_menu = new GLib.Menu();
metric_section.AppendSubmenu(Translations.GetString("Ruler Units"), metric_menu);
app.AddAction(RulerMetric);
metric_menu.Append(Translations.GetString("Pixels"), $"app.{RulerMetric.Name}(0)");
metric_menu.Append(Translations.GetString("Inches"), $"app.{RulerMetric.Name}(1)");
metric_menu.Append(Translations.GetString("Centimeters"), $"app.{RulerMetric.Name}(2)");
var show_hide_section = new GLib.Menu();
menu.AppendSection(null, show_hide_section);
var show_hide_menu = new GLib.Menu();
show_hide_section.AppendSubmenu(Translations.GetString("Show/Hide"), show_hide_menu);
app.AddAction(PixelGrid);
show_hide_menu.AppendItem(PixelGrid.CreateMenuItem());
app.AddAction(Rulers);
show_hide_menu.AppendItem(Rulers.CreateMenuItem());
app.AddAction(ToolBar);
show_hide_menu.AppendItem(ToolBar.CreateMenuItem());
app.AddAction(StatusBar);
show_hide_menu.AppendItem(StatusBar.CreateMenuItem());
app.AddAction(ToolBox);
show_hide_menu.AppendItem(ToolBox.CreateMenuItem());
app.AddAction(ImageTabs);
show_hide_menu.AppendItem(ImageTabs.CreateMenuItem());
}