lily/score-align-grav.cc

   1 /*
   2   score-align-reg.cc -- implement Type_align_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9
  10 #include "horizontal-group-item.hh"
  11 #include "score-align-grav.hh"
  12 #include "item.hh"
  13
  14 Type_align_engraver::Type_align_engraver()
  15 {
  16   type_ch_C_ = 0;
  17   priority_i_ =0;
  18   align_p_=0;
  19 }
  20
  21 void
  22 Type_align_engraver::do_pre_move_processing()
  23 {
  24   if (align_p_)
  25     {
  26       typeset_element (align_p_);
  27       align_p_ =0;
  28     }
  29 }
  30
  31 void
  32 Type_align_engraver::acknowledge_element (Score_elem_info inf)
  33 {
  34   if (inf.elem_l_->is_type_b (type_ch_C_))
  35     {
  36
  37       if (!align_p_)
  38         {
  39           align_p_ = new Horizontal_group_item;
  40           align_p_->breakable_b_ = true;
  41           announce_element (Score_elem_info (align_p_,0));
  42         }
  43       Score_elem * unbound_elem = inf.elem_l_;
  44       while (unbound_elem->axis_group_l_a_[X_AXIS])
  45         unbound_elem = unbound_elem->axis_group_l_a_[X_AXIS];
  46       align_p_->add_element (unbound_elem);
  47     }
  48
  49 }
  50
  51 IMPLEMENT_IS_TYPE_B1(Type_align_engraver,Engraver);