lily/score-element-callback.cc

   1 #if 0
   2 /*
   3   score-element-callback.cc --  implement Callback smob.
   4
   5   source file of the GNU LilyPond music typesetter
   6
   7   (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   8
   9  */
  10
  11 #include "score-element-callback.hh"
  12
  13 static SCM callback_tag;
  14
  15 static
  16 SCM mark_smob (SCM)
  17 {
  18   return SCM_EOL;
  19 }
  20
  21 static int
  22 print_smob (SCM, SCM port, scm_print_state *)
  23 {
  24   scm_puts ("#<Callback>", port);
  25   return 1;
  26 }
  27
  28 static
  29 scm_sizet free_smob (SCM)
  30 {
  31   return 0;
  32 }
  33
  34 static
  35 void start_callback_smobs()
  36 {
  37   callback_tag = scm_make_smob_type_mfpe ("callback", 0,
  38                                           mark_smob, free_smob,
  39                                           print_smob, 0);
  40 }
  41
  42
  43 SCM
  44 smobify_callback (Score_element_callback cb )
  45 {
  46   SCM z;
  47
  48   SCM_NEWCELL(z);
  49   SCM_SETCDR (z, (SCM)cb);
  50   SCM_SETCAR (z, (SCM)callback_tag);
  51
  52   return z;
  53 }
  54
  55 ADD_SCM_INIT_FUNC(callback, start_callback_smobs);
  56 #endif