private void CreateContent(Gtk.Image img)
{
if (button.Child != null)
{
button.Remove(button.Child);
}
Gtk.Box content = new Gtk.HBox();
button.Add(content);
content.Show();
if (img != null)
{
content.Add(img);
}
if (label != null)
{
label = new Gtk.Label(label.Text); //for some stupid reason we have to re-create it (why??)
label.Show();
content.Add(label);
}
}