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 #include "debug.hh"
   9 #include "crescendo.hh"
  10 #include "dynamic-reg.hh"
  11 #include "musical-request.hh"
  12 #include "text-item.hh"
  13 #include "lookup.hh"
  14 #include "paper-def.hh"
  15 #include "score-column.hh"
  16
  17 Dynamic_register::Dynamic_register()
  18 {
  19     dir_i_ =0;
  20     post_move_processing();
  21     dynamic_p_ =0;
  22     to_end_cresc_p_ = cresc_p_ = 0;
  23     cresc_req_l_ = 0;
  24 }
  25
  26 void
  27 Dynamic_register::post_move_processing()
  28 {
  29     dynamic_req_l_arr_.set_size(0);
  30 }
  31
  32 bool
  33 Dynamic_register::try_request(Request * r)
  34 {
  35     Musical_req * m = r->musical();
  36     if (!m || !m->dynamic())
  37         return false;
  38     dynamic_req_l_arr_.push(m->dynamic());
  39     return true;
  40 }
  41 void
  42 Dynamic_register::process_requests()
  43 {
  44     Crescendo*  new_cresc_p=0;
  45     for (int i=0; i < dynamic_req_l_arr_.size(); i++) {
  46         Dynamic_req *dreq_l = dynamic_req_l_arr_[i];
  47         if (dreq_l->absdynamic()) {
  48             Text_def * td_p = new Text_def;
  49             td_p->align_i_ = 0;
  50             String loud =Dynamic_req::loudness_str(
  51                 dreq_l->absdynamic()->loudness_);
  52
  53             td_p->text_str_ = paper()->lookup_l()->dynamic(loud).tex;
  54             td_p->style_str_ = "dynamic";
  55
  56             assert (!dynamic_p_) ; // TODO
  57
  58             dynamic_p_ = new Text_item(td_p, 10 ); // TODO!
  59             announce_element(Staff_elem_info(dynamic_p_, dreq_l));
  60         } else if (dreq_l->span_dynamic()) {
  61
  62             Span_dynamic_req* span_l = dreq_l->span_dynamic();
  63             if (span_l->spantype == Span_req::STOP) {
  64                 if (!cresc_p_) {
  65                     span_l->warning("Can't find cresc to end " );
  66                 } else {
  67                     assert(!to_end_cresc_p_);
  68                     to_end_cresc_p_ =cresc_p_;
  69                     cresc_p_ = 0;
  70                 }
  71             } else if (span_l->spantype == Span_req::START) {
  72                 cresc_req_l_ = span_l;
  73                 assert(!new_cresc_p);
  74                 new_cresc_p  = new Crescendo(10);
  75                 new_cresc_p->grow_dir_i_ = span_l->dynamic_dir_i_;
  76                 announce_element(Staff_elem_info(new_cresc_p, span_l));
  77             }
  78         }
  79     }
  80
  81     if ( new_cresc_p ) {
  82         cresc_p_ = new_cresc_p;
  83         cresc_p_->left_col_l_ = get_staff_info().musical_l()->pcol_l_;
  84         if (dynamic_p_) {
  85             cresc_p_->left_dyn_b_ = true;
  86         }
  87     }
  88 }
  89
  90 void
  91 Dynamic_register::pre_move_processing()
  92 {
  93     if (dynamic_p_) {
  94         typeset_element(dynamic_p_);
  95         dynamic_p_ = 0;
  96     }
  97     if ( to_end_cresc_p_) {
  98         if (dynamic_p_)
  99             to_end_cresc_p_->right_dyn_b_=true;
 100
 101         to_end_cresc_p_->right_col_l_ = get_staff_info().musical_l()->pcol_l_;
 102
 103         typeset_element(to_end_cresc_p_);
 104         to_end_cresc_p_ = 0;
 105     }
 106 }
 107
 108 bool
 109 Dynamic_register::acceptable_request_b(Request*r)const
 110 {
 111     Musical_req * m = r->musical();
 112     return  (m && m->dynamic());
 113 }
 114
 115 void
 116 Dynamic_register::set_feature(Features i)
 117 {
 118     dir_i_ = i.direction_i_;
 119 }
 120
 121 IMPLEMENT_STATIC_NAME(Dynamic_register);
 122 ADD_THIS_REGISTER(Dynamic_register);
 123
 124 Dynamic_register::~Dynamic_register()
 125 {
 126     delete dynamic_p_;
 127     delete to_end_cresc_p_;
 128     if (cresc_p_) {
 129         cresc_req_l_->warning("unended crescendo");
 130     }
 131     delete cresc_p_;
 132 }