lily/dynamic-reg.cc

   1 /*
   2   dynamic-reg.cc -- implement Dynamic_register
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "dynamic-reg.hh"
  10 #include "musical-request.hh"
  11 #include "text-item.hh"
  12 #include "lookup.hh"
  13 #include "paper-def.hh"
  14
  15 Dynamic_register::Dynamic_register()
  16 {
  17     dir_i_ =0;
  18     post_move_processing();
  19     dynamic_p_ =0;
  20 }
  21
  22 void
  23 Dynamic_register::post_move_processing()
  24 {
  25     dynamic_req_l_ = 0;
  26 }
  27
  28 bool
  29 Dynamic_register::try_request(Request * r)
  30 {
  31     Musical_req * m = r->musical();
  32     if (!m || !m->dynamic())
  33         return false;
  34     assert(!dynamic_req_l_);
  35     dynamic_req_l_ = m->dynamic();
  36     return true;
  37 }
  38 void
  39 Dynamic_register::process_requests()
  40 {
  41     if(dynamic_req_l_){
  42         if (dynamic_req_l_->absdynamic()) {
  43             Text_def * td_p = new Text_def;
  44             td_p->align_i_ = 0;
  45             String loud =Dynamic_req::loudness_str(
  46                 dynamic_req_l_->absdynamic()->loudness_);
  47
  48             td_p->text_str_ = paper()->lookup_l()->dynamic(loud).tex;
  49
  50
  51             td_p->style_str_ = "dynamic";
  52
  53             dynamic_p_ = new Text_item(td_p, 10 ); // TODO!
  54             announce_element(Staff_elem_info(dynamic_p_, dynamic_req_l_));
  55         }
  56     }
  57 }
  58
  59 void
  60 Dynamic_register::pre_move_processing()
  61 {
  62     if (dynamic_p_) {
  63         typeset_element(dynamic_p_);
  64         dynamic_p_ = 0;
  65     }
  66 }
  67
  68 bool
  69 Dynamic_register::acceptable_request_b(Request*r)const
  70 {
  71     Musical_req * m = r->musical();
  72     return  (m && m->dynamic());
  73 }
  74
  75 void
  76 Dynamic_register::set_feature(Features i)
  77 {
  78     dir_i_ = i.direction_i_;
  79 }
  80
  81 IMPLEMENT_STATIC_NAME(Dynamic_register);