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         text_p_->add_support(i.elem_l_);
  37     }
  38 }
  39 void
  40 Text_engraver::do_process_requests()
  41 {
  42     if (text_req_l_) {
  43         text_p_ = new Text_item(text_req_l_->tdef_p_, text_req_l_->dir_i_); // ugh
  44         announce_element(Score_elem_info(text_p_, text_req_l_));
  45     }
  46 }
  47 void
  48 Text_engraver::do_pre_move_processing()
  49 {
  50     if (text_p_) {
  51         if (dir_i_ && !text_p_->dir_i_)
  52             text_p_->dir_i_ = dir_i_;
  53         Staff_symbol* s_l = get_staff_info().staff_sym_l_;
  54         text_p_->set_staffsym(s_l);
  55         typeset_element(text_p_);
  56
  57         text_p_ = 0;
  58     }
  59 }
  60 void
  61 Text_engraver::set_feature(Feature i)
  62 {
  63     if (i.type_ == "vdir")
  64         dir_i_ = i.value_;
  65 }
  66 void
  67 Text_engraver::do_post_move_processing()
  68 {
  69     text_req_l_ = 0;
  70 }
  71
  72 IMPLEMENT_IS_TYPE_B1(Text_engraver,Engraver);
  73 ADD_THIS_ENGRAVER(Text_engraver);