lily/local-key-item.cc

   1 /*
   2   local-key-item.cc -- implement Local_key_item, Local_acc
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "local-key-item.hh"
  10 #include "molecule.hh"
  11 #include "scalar.hh"
  12 #include "lookup.hh"
  13 #include "paper-def.hh"
  14 #include "musical-request.hh"
  15 #include "note-head.hh"
  16 #include "misc.hh"
  17
  18
  19
  20 Local_key_item::Local_key_item (int i)
  21 {
  22   c0_position  = i;
  23 }
  24
  25 void
  26 Local_key_item::add_support (Item*head_l)
  27 {
  28   support_items_.push (head_l);
  29   add_dependency (head_l);
  30 }
  31
  32 void
  33 Local_key_item::add (Melodic_req*m_l)
  34 {
  35   add (m_l->octave_i_, m_l->notename_i_, m_l->accidental_i_);
  36 }
  37
  38 void
  39 Local_key_item::add (int o, int p , int a)
  40 {
  41   Local_acc l;
  42   l.octave_i_ = o;
  43   l.name_i_ = p;
  44   l.accidental_i_ = a;
  45   for (int i=0; i< accs.size(); i++)
  46     if (!Local_acc::compare (l, accs[i]))
  47       return;
  48
  49   accs.push (l);
  50 }
  51
  52 void
  53 Local_key_item::do_pre_processing()
  54 {
  55   accs.sort (Local_acc::compare);
  56 }
  57
  58 Molecule*
  59 Local_key_item::brew_molecule_p() const
  60 {
  61   Molecule* output = new Molecule;
  62   Molecule*octmol = 0;
  63   int lastoct = -100;
  64   for  (int i = 0; i <  accs.size(); i++)
  65     {
  66       // do one octave
  67       if (accs[i].octave_i_ != lastoct)
  68         {
  69           if (octmol)
  70             {
  71               Real dy =lastoct*7*paper()->internote_f ();
  72               octmol->translate (dy, Y_AXIS);
  73               output->add (*octmol);
  74               delete octmol;
  75             }
  76           octmol= new Molecule;
  77         }
  78       lastoct = accs[i].octave_i_;
  79
  80       Real dy = (accs[i].name_i_ + c0_position) * paper()->internote_f ();
  81       Atom a (paper()->lookup_l ()->accidental (accs[i].accidental_i_));
  82       a.translate (dy, Y_AXIS);
  83       Molecule m(a);
  84       octmol->add_at_edge (X_AXIS, RIGHT, m);
  85     }
  86
  87   if (octmol)
  88     {
  89       Real dy =lastoct*7*paper()->internote_f ();
  90       octmol->translate (dy, Y_AXIS);
  91       output->add (*octmol);
  92       delete octmol;
  93     }
  94
  95   Interval head_width=itemlist_width (support_items_);
  96   output->translate (-output->extent().x ().right + head_width.left , X_AXIS);
  97
  98   return output;
  99 }
 100
 101 int
 102 Local_acc::compare (Local_acc&a, Local_acc&b)
 103 {
 104   if (a.octave_i_ - b.octave_i_)
 105     return a.octave_i_ - b.octave_i_;
 106   if (a.name_i_ - b.name_i_)
 107     return a.name_i_ - b.name_i_;
 108
 109   return a.accidental_i_ - b.accidental_i_;
 110 };
 111
 112 IMPLEMENT_IS_TYPE_B1(Local_key_item,Item);
 113
 114 void
 115 Local_key_item::do_substitute_dependency (Score_elem*o,Score_elem*n)
 116 {
 117   Item* o_l = o->item();
 118   Item* n_l = n?n->item():0;
 119
 120   support_items_.substitute (o_l, n_l);
 121 }