add(*(btn=new GLtk::Button(res, fname)));
btn->set_geometry(GLtk::Geometry(x, 68, 40, 24));
btn->signal_clicked.connect(sigc::bind(sigc::mem_fun(this, &TrainPanel::func_clicked), i->first));
add(*(btn=new GLtk::Button(res, fname)));
btn->set_geometry(GLtk::Geometry(x, 68, 40, 24));
btn->signal_clicked.connect(sigc::bind(sigc::mem_fun(this, &TrainPanel::func_clicked), i->first));