lily/tuplet-engraver.cc

   1 /*
   2   auto-plet-engraver.cc --  implement Auto_plet_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1998--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7
   8  */
   9
  10 #include "tuplet-engraver.hh"
  11 #include "command-request.hh"
  12 #include "tuplet-spanner.hh"
  13 #include "note-column.hh"
  14 #include "time-scaled-music.hh"
  15 #include "beam.hh"
  16 #include "music-list.hh"
  17
  18 bool
  19 Tuplet_engraver::do_try_music (Music *r)
  20 {
  21   if (Time_scaled_music * c = dynamic_cast<Time_scaled_music *> (r))
  22     {
  23       Music *el = c->element_l ();
  24       if (!dynamic_cast<Request_chord*> (el))
  25         {
  26           time_scaled_music_arr_.push (c);
  27           stop_moments_.push (now_mom () + c->length_mom ());
  28         }
  29       return true;
  30     }
  31   return false;
  32 }
  33
  34 void
  35 Tuplet_engraver::do_process_requests ()
  36 {
  37   int dir = 0;
  38   Scalar prop = get_property ("tupletDirection", 0);
  39   if (prop.isnum_b())
  40     dir = (int)prop;
  41   int visibility = 3;
  42   prop = get_property ("tupletVisibility", 0);
  43   if (prop.isnum_b())
  44     visibility = (int)prop;
  45
  46   for (int i= started_span_p_arr_.size ();
  47        i < time_scaled_music_arr_.size (); i++)
  48     {
  49       Tuplet_spanner* glep = new Tuplet_spanner;
  50       started_span_p_arr_.push (glep);
  51       glep->number_str_ = to_str (time_scaled_music_arr_[i]->den_i_);
  52       glep->set_elt_property(tuplet_visibility_scm_sym,
  53                              gh_int2scm (visibility));
  54       if (dir != 0)
  55         glep->set_elt_property(dir_forced_scm_sym, gh_int2scm (dir));
  56       announce_element (Score_element_info (glep, time_scaled_music_arr_ [i]));
  57     }
  58 }
  59
  60 void
  61 Tuplet_engraver::acknowledge_element (Score_element_info i)
  62 {
  63   if (Note_column *nc = dynamic_cast<Note_column *> (i.elem_l_))
  64     {
  65       for (int j =0; j  <started_span_p_arr_.size (); j++)
  66         started_span_p_arr_[j]->add_column (nc);
  67     }
  68   else if (Beam *b = dynamic_cast<Beam *> (i.elem_l_))
  69     {
  70       for (int j = 0; j < started_span_p_arr_.size (); j++)
  71         started_span_p_arr_[j]->add_beam (b);
  72     }
  73 }
  74
  75 void
  76 Tuplet_engraver::do_post_move_processing ()
  77 {
  78   Moment now = now_mom ();
  79   for (int i= started_span_p_arr_.size (); i--; )
  80     {
  81       if (now >= stop_moments_[i])
  82         {
  83           typeset_element (started_span_p_arr_[i]);
  84           started_span_p_arr_.del (i);
  85           stop_moments_.del(i);
  86           time_scaled_music_arr_.del(i);
  87         }
  88     }
  89 }
  90
  91 void
  92 Tuplet_engraver::do_removal_processing ()
  93 {
  94   for (int i=0; i < started_span_p_arr_.size (); i++)
  95     {
  96       typeset_element (started_span_p_arr_[i]);
  97     }
  98 }
  99
 100 ADD_THIS_TRANSLATOR(Tuplet_engraver);
 101