lily/include/grob-interface.hh

   1 /*
   2   interface.hh -- declare Interface
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 2002--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #ifndef INTERFACE_HH
  10 #define INTERFACE_HH
  11
  12 #include "lily-guile.hh"
  13
  14 #define ADD_INTERFACE(cl, a, b, c)                              \
  15   bool cl::has_interface (Grob *me)                             \
  16   {                                                             \
  17     return me->internal_has_interface (ly_symbol2scm (a));      \
  18   }                                                             \
  19   void cl ## _init_ifaces ()                                    \
  20   {                                                             \
  21     add_interface (a, b, c);                                    \
  22   }                                                             \
  23   ADD_SCM_INIT_FUNC (cl ## ifaces, cl ## _init_ifaces);
  24
  25 void add_interface (char const *symbol,
  26                     char const *descr,
  27                     char const *vars);
  28
  29 SCM ly_add_interface (SCM, SCM, SCM);
  30 SCM ly_all_grob_interfaces ();
  31
  32 #endif /* INTERFACE_HH */
  33