class Grid_line_interface
{
public:
static void add_grid_point (Grob *me, Grob *b);
DECLARE_SCHEME_CALLBACK (print, (SCM));
DECLARE_SCHEME_CALLBACK (width, (SCM));
class Grid_line_interface
{
public:
static void add_grid_point (Grob *me, Grob *b);
DECLARE_SCHEME_CALLBACK (print, (SCM));
DECLARE_SCHEME_CALLBACK (width, (SCM));