void OnActivateToolbar(object sender, System.EventArgs args)
{
int width, height;
Requisition requisition;
requisition = toolbar.SizeRequest();
app_window.GetSize(out width, out height);
toolbar.Visible = !toolbar.Visible;
if (toolbar.Visible)
{
toolbar.ShowArrow = false;
}
toolbar_orientation_menuitem.Sensitive = toolbar.Visible;
if (Preferences.Get <bool> (Preferences.ToolbarShowKey) != toolbar.Visible)
{
Preferences.Set <bool> (Preferences.ToolbarShowKey, toolbar.Visible);
Preferences.Save();
}
app_window.Resize(width, height - requisition.Height);
}
