lily/voice-group-regs.cc

   1 /*
   2   voicegroup.cc -- implement Voice_group_registers
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "proto.hh"
  10 #include "plist.hh"
  11 #include "musicalrequest.hh"
  12 #include "voice-regs.hh"
  13 #include "voice-group-regs.hh"
  14 #include "register.hh"
  15 #include "text-reg.hh"
  16 #include "stem-beam-reg.hh"
  17 #include "script-reg.hh"
  18 #include "complex-walker.hh"
  19 #include "commandrequest.hh"
  20 #include "debug.hh"
  21 #include "dynamic-reg.hh"
  22
  23 static int temp_id_count;
  24
  25 Voice_group_registers::Voice_group_registers(String id)
  26 {
  27     add(new Dynamic_register);
  28     add(new Text_register);
  29     add(new Stem_beam_register);
  30     add(new Script_register);
  31
  32     if (id=="")                 // UGH
  33         id = __FUNCTION__ + String(temp_id_count++);
  34     group_id_str_ = id;
  35 }
  36
  37 bool
  38 Voice_group_registers::try_request(Request*r_l)
  39 {
  40     for (int i=0; i < voice_regs_l_.size(); i++) {
  41         if (voice_regs_l_[i]->voice_l_ == r_l->voice_l())
  42             goto gotcha;
  43     }
  44     return false;
  45 gotcha:
  46     if (r_l->groupfeature()) {
  47         set_feature(Features::dir(r_l->groupfeature()->stemdir_i_));
  48         return true;
  49     }
  50     return Register_group_register::try_request(r_l);
  51 }
  52
  53
  54 bool
  55 Voice_group_registers::static_acceptable_request_b(Request*r)
  56 {
  57     return (r->stem() || r->beam() || r->text() || r->script() ||
  58             r->groupfeature());
  59 }
  60
  61 void
  62 Voice_group_registers::terminate_register(Request_register*r_l)
  63 {
  64     if (r_l->name() == Voice_registers::static_name()) {
  65         for (int i=0; i <voice_regs_l_.size(); i++) {
  66             if (r_l == voice_regs_l_[i])
  67                 voice_regs_l_.del(i);
  68             Register_group_register::terminate_register(r_l);
  69             return;
  70         }
  71     }
  72     assert(false);
  73 }
  74 void
  75 Voice_group_registers::do_print() const
  76 {
  77 #ifndef NPRINT
  78     mtor << "ID: " << group_id_str_<<"\n";
  79     Register_group_register::do_print();
  80 #endif
  81 }
  82 void
  83 Voice_group_registers::add(Request_register*r_l)
  84 {
  85     Register_group_register::add(r_l);
  86     if (r_l->name() == Voice_registers::static_name())
  87         voice_regs_l_.push( (Voice_registers*)r_l );
  88 }