lily/grace-performer-group.cc

   1 /*
   2   grace-performer-group.cc -- implement Grace_performer_group
   3
   4   source file of the GNU LilyPond music playter
   5
   6   (c) 1999 Jan Nieuwenhuizen <janneke@gnu.org>
   7
   8  */
   9 #include "grace-performer-group.hh"
  10 #include "lily-guile.hh"
  11
  12 #include "audio-element.hh"
  13
  14 ADD_THIS_TRANSLATOR (Grace_performer_group);
  15
  16 void
  17 Grace_performer_group::start ()
  18 {
  19 }
  20 /*
  21   We're really finished with this context. Get rid of everything.
  22  */
  23 void
  24 Grace_performer_group::finish ()
  25 {
  26   calling_self_b_ = true;
  27   removal_processing ();        // ugr. We'd want to have this done by our parents.g
  28   for (int i=0; i < announce_to_top_.size (); i++)
  29     {
  30       Performer::announce_element (announce_to_top_[i]);
  31     }
  32
  33   for (int i=0; i < play_us_.size (); i++)
  34     {
  35       Performer::play_element (play_us_[i]);
  36     }
  37   play_us_.clear ();
  38   calling_self_b_ = false;
  39 }
  40
  41 void
  42 Grace_performer_group::do_removal_processing ()
  43 {
  44   Performer_group_performer::do_removal_processing ();
  45 }
  46
  47 void
  48 Grace_performer_group::announce_element (Audio_element_info info)
  49 {
  50   announce_info_arr_.push (info);
  51   // do not propagate to top
  52   announce_to_top_.push (info);
  53
  54   //inf.elem_l_->set_elt_property ("grace", SCM_BOOL_T);
  55   info.elem_l_->grace_b_ = true;
  56 }
  57
  58 void
  59 Grace_performer_group::play_element (Audio_element*e)
  60 {
  61   play_us_.push (e);
  62 }
  63
  64
  65 Grace_performer_group::Grace_performer_group()
  66 {
  67   calling_self_b_ = false;
  68 }
  69
  70 void
  71 Grace_performer_group::process ()
  72 {
  73   calling_self_b_  = true;
  74   process_requests ();
  75   do_announces();
  76   pre_move_processing();
  77   check_removal();
  78   calling_self_b_ = false;
  79 }
  80
  81
  82 void
  83 Grace_performer_group::each (Method_pointer method)
  84 {
  85   if (calling_self_b_)
  86     Performer_group_performer::each (method);
  87 }
  88
  89
  90 void
  91 Grace_performer_group::each (Const_method_pointer method) const
  92 {
  93  if (calling_self_b_)
  94     Performer_group_performer::each (method);
  95 }
  96
  97 /*
  98   don't let the commands trickle up.
  99  */
 100 bool
 101 Grace_performer_group::do_try_music (Music *m)
 102 {
 103   return try_music_on_nongroup_children (m);
 104 }
 105