src/voicegroupregs.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 "plist.hh"
  10 #include "musicalrequest.hh"
  11 #include "voiceregs.hh"
  12 #include "voicegroupregs.hh"
  13 #include "register.hh"
  14 #include "textreg.hh"
  15 #include "stembeamreg.hh"
  16 #include "scriptreg.hh"
  17 #include "complexwalker.hh"
  18 #include "commandrequest.hh"
  19
  20 static int temp_id_count;
  21
  22 Voice_group_registers::Voice_group_registers(Complex_walker*w_l, String id)
  23 {
  24     walk_l_ = w_l;
  25     add(new Text_register(w_l));
  26     add(new Stem_beam_register(w_l));
  27     add(new Script_register(w_l));
  28
  29     if (id=="")                 // UGH
  30         id = __FUNCTION__ + String(temp_id_count++);
  31     group_id_str_ = id;
  32 }
  33
  34 bool
  35 Voice_group_registers::try_request(Request*r_l)
  36 {
  37     if (r_l->groupfeature()) {
  38         set_dir(r_l->groupfeature()->stemdir_i_);
  39         return true;
  40     }
  41     return Register_group::try_request(r_l);
  42 }
  43
  44 void
  45 Voice_group_registers::acknowledge_element(Staff_elem_info i)
  46 {
  47     if (i.group_regs_l_!= this)
  48         return;
  49     Register_group::acknowledge_element(i);
  50 }
  51 #if 1
  52 void
  53 Voice_group_registers::set_dir(int i)
  54 {
  55     Register_group::set_dir(i);
  56
  57     // ughh
  58     Array<Voice_registers*> vr_arr (walk_l_->get_voice_regs(this));
  59     for (int j=0; j<vr_arr.size(); j++) {
  60         if (vr_arr[j])
  61             vr_arr[j]->set_dir(i);
  62     }
  63 }
  64 #endif
  65 bool
  66 Voice_group_registers::acceptable_request_b(Request*r)
  67 {
  68     return (r->stem() || r->beam() || r->text() || r->script() ||
  69             r->groupfeature());
  70 }