lily/rhythmic-column-grav.cc

   1 /*
   2   rhythmic-column-grav.cc -- implement Rhythmic_column_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--1998 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "rhythmic-column-grav.hh"
  10 #include "note-head.hh"
  11 #include "stem.hh"
  12 #include "note-column.hh"
  13 #include "script.hh"
  14 #include "dot-column.hh"
  15
  16 Rhythmic_column_engraver::Rhythmic_column_engraver()
  17 {
  18   stem_l_ =0;
  19   ncol_p_=0;
  20   dotcol_p_ =0;
  21 }
  22
  23
  24 void
  25 Rhythmic_column_engraver::acknowledge_element (Score_elem_info i)
  26 {
  27   if (i.elem_l_->is_type_b (Script::static_name ())
  28       && i.req_l_ && i.req_l_->musical ())
  29     {
  30       script_l_arr_.push ((Script*)i.elem_l_->item());
  31     }
  32   else if (i.elem_l_->is_type_b (Stem::static_name()))
  33     {
  34       stem_l_ = (Stem*) i.elem_l_->item();
  35     }
  36   else if (i.elem_l_->is_type_b (Rhythmic_head::static_name ()))
  37     {
  38       Rhythmic_head * r = (Rhythmic_head*)i.elem_l_->item ();
  39       if (!ncol_p_)
  40         {
  41           ncol_p_ = new Note_column;
  42           announce_element (Score_elem_info (ncol_p_, 0));
  43         }
  44       ncol_p_->add (r);
  45
  46       if (r->dots_l_)
  47         {
  48           if (!dotcol_p_)
  49             {
  50               dotcol_p_ = new Dot_column;
  51               ncol_p_->set (dotcol_p_);
  52               announce_element (Score_elem_info (dotcol_p_, 0));
  53             }
  54           dotcol_p_->add (r);
  55         }
  56     }
  57
  58   if (ncol_p_)
  59     {
  60       if (stem_l_&& !ncol_p_->stem_l_)
  61         ncol_p_->set (stem_l_);
  62
  63       for (int i=0; i < script_l_arr_.size(); i++)
  64         {
  65           if (ncol_p_)
  66             ncol_p_->add (script_l_arr_[i]);
  67         }
  68
  69       script_l_arr_.clear();
  70     }
  71 }
  72
  73 void
  74 Rhythmic_column_engraver::do_pre_move_processing()
  75 {
  76   if (ncol_p_)
  77     {
  78       if (! ncol_p_->h_shift_b_)
  79         // egcs
  80         ncol_p_->h_shift_b_  = get_property ("hshift").operator bool ();
  81       if (! ncol_p_->dir_)
  82         ncol_p_->dir_ =(Direction) int(get_property ("ydirection"));
  83
  84       typeset_element (ncol_p_);
  85       ncol_p_ =0;
  86     }
  87   if (dotcol_p_)
  88     {
  89       typeset_element (dotcol_p_);
  90       dotcol_p_ =0;
  91     }
  92 }
  93
  94 void
  95 Rhythmic_column_engraver::do_post_move_processing()
  96 {
  97   script_l_arr_.clear();
  98   stem_l_ =0;
  99 }
 100
 101
 102
 103
 104 IMPLEMENT_IS_TYPE_B1(Rhythmic_column_engraver,Engraver);
 105 ADD_THIS_TRANSLATOR(Rhythmic_column_engraver);