src/slurreg.cc

   1 /*
   2   slurreg.cc -- implement Slur_register
   3
   4   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   5 */
   6
   7 #include "plist.hh"
   8 #include "musicalrequest.hh"
   9 #include "complexwalker.hh"
  10 #include "slurreg.hh"
  11 #include "slur.hh"
  12 #include "debug.hh"
  13
  14
  15 void
  16 Slur_register::set_dir(int i)
  17 {
  18     dir_i_ = i;
  19 }
  20
  21 Slur_register::Slur_register(Complex_walker* w)
  22     : Request_register(w)
  23 {
  24     set_dir(0);
  25 }
  26
  27 bool
  28 Slur_register::try_request(Request *req_l)
  29 {
  30     if(!req_l->slur())
  31         return false;
  32
  33     accepted_req_arr_.push(req_l);
  34     return true;
  35 }
  36
  37 void
  38 Slur_register::acknowledge_element(Staff_elem_info info)
  39 {
  40     if (info.elem_p_->name() == String("Notehead")) {
  41         Notehead *head_p =(Notehead*) info.elem_p_ ;// ugh
  42         for (int i = 0; i < slur_l_stack_.size(); i++)
  43             slur_l_stack_[i]->add(head_p );
  44         for (int i = 0; i < end_slur_l_arr_.size(); i++)
  45             end_slur_l_arr_[i]->add(head_p);
  46     }
  47 }
  48 /*
  49   abracadabra
  50   */
  51 void
  52 Slur_register::process_request()
  53 {
  54     Array<Slur*> start_slur_l_arr_;
  55     for (int i=0; i< accepted_req_arr_.size(); i++) {
  56         Slur_req* slur_req_l = accepted_req_arr_[i]->slur();
  57         // end slur: move the slur to other array
  58         if (slur_req_l->spantype == Span_req::STOP) {
  59             if (slur_l_stack_.empty())
  60                 warning("can't find slur to end",
  61                       slur_req_l->defined_ch_c_l_);
  62             else {
  63                 end_slur_l_arr_.push(slur_l_stack_.pop());
  64                 requests_arr_.pop();
  65             }
  66         } else  if (slur_req_l->spantype == Span_req::START) {
  67             // push a new slur onto stack.
  68             //(use temp. array to wait for all slur STOPs)
  69             Slur * s_p =new Slur;
  70             requests_arr_.push(slur_req_l);
  71             start_slur_l_arr_.push(s_p);
  72             announce_element(Staff_elem_info(s_p, slur_req_l, this));
  73         }
  74     }
  75     for (int i=0; i < start_slur_l_arr_.size(); i++)
  76         slur_l_stack_.push(start_slur_l_arr_[i]);
  77 }
  78
  79 void
  80 Slur_register::do_pre_move_process()
  81 {
  82     for (int i = 0; i < end_slur_l_arr_.size(); i++) {
  83         if (dir_i_)
  84             end_slur_l_arr_[i]->dir_i_ = dir_i_;
  85         typeset_element(end_slur_l_arr_[i]);
  86     }
  87     end_slur_l_arr_.set_size(0);
  88 }
  89
  90 Slur_register::~Slur_register()
  91 {
  92     for (int i=0; i < requests_arr_.size(); i++) {
  93         warning("unterminated slur", requests_arr_[i]->defined_ch_c_l_);
  94     }
  95 }