widget_bline_width->set_digits(2);
widget_bline_width->set_size_request(24,-1);
widget_bline_width->signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_Defaults::on_bline_width_changed));
widget_bline_width->set_digits(2);
widget_bline_width->set_size_request(24,-1);
widget_bline_width->signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_Defaults::on_bline_width_changed));