lily/text-grav.cc

   1 /*
   2   text-reg.cc -- implement Text_engraver
   3
   4   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   5
   6   Obsolete.
   7 */
   8 #include "note-column.hh"
   9 #include "musical-request.hh"
  10 #include "text-grav.hh"
  11 #include "text-item.hh"
  12
  13 Text_engraver::Text_engraver()
  14 {
  15   text_p_ = 0;
  16   dir_i_ =0;
  17   do_post_move_processing();
  18 }
  19
  20 bool
  21 Text_engraver::do_try_request (Request*req_l)
  22 {
  23   Musical_req *m = req_l->musical();
  24   if (!m || ! m->text())
  25         return false;
  26   if (text_req_l_ && text_req_l_->equal_b (m))
  27         return false;
  28
  29   text_req_l_ = m->text();
  30   return true;
  31 }
  32 void
  33 Text_engraver::acknowledge_element (Score_elem_info i)
  34 {
  35   if (text_p_ && i.elem_l_->name() == Note_column::static_name ())
  36     {
  37         text_p_->add_support (i.elem_l_);
  38     }
  39 }
  40 void
  41 Text_engraver::do_process_requests()
  42 {
  43   if (text_req_l_)
  44     {
  45         text_p_ = new Text_item (text_req_l_->tdef_p_, text_req_l_->dir_i_); // ugh
  46         announce_element (Score_elem_info (text_p_, text_req_l_));
  47     }
  48 }
  49 void
  50 Text_engraver::do_pre_move_processing()
  51 {
  52   if (text_p_)
  53     {
  54         if (dir_i_ && !text_p_->dir_i_)
  55             text_p_->dir_i_ = dir_i_;
  56         Staff_symbol* s_l = get_staff_info().staff_sym_l_;
  57         text_p_->set_staffsym (s_l);
  58         typeset_element (text_p_);
  59
  60         text_p_ = 0;
  61     }
  62 }
  63 void
  64 Text_engraver::set_feature (Feature i)
  65 {
  66   if (i.type_ == "vdir")
  67         dir_i_ = i.value_;
  68 }
  69 void
  70 Text_engraver::do_post_move_processing()
  71 {
  72   text_req_l_ = 0;
  73 }
  74
  75 IMPLEMENT_IS_TYPE_B1(Text_engraver,Engraver);
  76 ADD_THIS_ENGRAVER(Text_engraver);