s->Add (_width, 1, wxRIGHT, 4);
add_label_to_sizer (s, this, wxT("x"), false, 0, wxLEFT | wxRIGHT | wxALIGN_CENTER_VERTICAL);
s->Add (_width, 1, wxRIGHT, 4);
add_label_to_sizer (s, this, wxT("x"), false, 0, wxLEFT | wxRIGHT | wxALIGN_CENTER_VERTICAL);