lily/local-key-item.cc

   1 /*
   2   local-key-item.cc -- implement Local_key_item, Musical_pitch
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8 #include "local-key-item.hh"
   9 #include "molecule.hh"
  10 #include "staff-symbol-referencer.hh"
  11
  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 Local_key_item::Local_key_item ()
  19 {
  20   c0_position_i_ = 0;
  21 }
  22
  23 void
  24 Local_key_item::add_pitch (Musical_pitch p, bool cautionary, bool natural)
  25 {
  26   for (int i=0; i< accidental_arr_.size(); i++)
  27     if (!Musical_pitch::compare (p, accidental_arr_[i].pitch_))
  28       return;
  29           /* maybe natural (and cautionary) should be modif. nonetheless? */
  30
  31   Local_key_cautionary_tuple t;
  32   t.pitch_ = p;
  33   t.cautionary_b_ = cautionary;
  34   t.natural_b_ = natural;
  35   accidental_arr_.push (t);
  36 }
  37
  38
  39
  40 void
  41 Local_key_item::do_pre_processing()
  42 {
  43   accidental_arr_.sort (Local_key_cautionary_tuple::compare);
  44   Note_head_side::do_pre_processing ();
  45 }
  46
  47 Molecule
  48 Local_key_item::accidental (int j, bool cautionary, bool natural) const
  49 {
  50   Molecule m (lookup_l ()->afm_find (String ("accidentals-") + to_str (j)));
  51   if (natural)
  52     {
  53           Molecule prefix = lookup_l ()->afm_find (String ("accidentals-0"));
  54           m.add_at_edge(X_AXIS, LEFT, Molecule(prefix), 0);
  55         }
  56   if (cautionary)
  57     {
  58       Molecule open = lookup_l ()->afm_find (String ("accidentals-("));
  59       Molecule close = lookup_l ()->afm_find (String ("accidentals-)"));
  60       m.add_at_edge(X_AXIS, LEFT, Molecule(open), 0);
  61       m.add_at_edge(X_AXIS, RIGHT, Molecule(close), 0);
  62     }
  63
  64   return m;
  65 }
  66
  67 Molecule*
  68 Local_key_item::do_brew_molecule_p() const
  69 {
  70   Molecule*output = new Molecule;
  71   Staff_symbol_referencer_interface si (this);
  72   Real note_distance = si.staff_line_leading_f ()/2;
  73   Molecule *octave_mol_p = 0;
  74   int lastoct = -100;
  75
  76   for  (int i = 0; i <  accidental_arr_.size(); i++)
  77     {
  78       Musical_pitch p (accidental_arr_[i].pitch_);
  79       // do one octave
  80       if (p.octave_i_ != lastoct)
  81         {
  82           if (octave_mol_p)
  83             {
  84               Real dy =lastoct*7* note_distance;
  85               octave_mol_p->translate_axis (dy, Y_AXIS);
  86               output->add_molecule (*octave_mol_p);
  87               delete octave_mol_p;
  88             }
  89           octave_mol_p= new Molecule;
  90         }
  91
  92       lastoct = p.octave_i_;
  93       Real dy =
  94         (c0_position_i_ + p.notename_i_)
  95         * note_distance;
  96
  97       Molecule m (accidental (p.accidental_i_,
  98                                   accidental_arr_[i].cautionary_b_,
  99                                   accidental_arr_[i].natural_b_));
 100
 101       m.translate_axis (dy, Y_AXIS);
 102       octave_mol_p->add_at_edge (X_AXIS, RIGHT, m, 0);
 103     }
 104
 105   if (octave_mol_p)
 106     {
 107       Real dy =lastoct*7*note_distance;
 108       octave_mol_p->translate_axis (dy, Y_AXIS);
 109       output->add_molecule (*octave_mol_p);
 110       delete octave_mol_p;
 111     }
 112
 113  if (accidental_arr_.size())
 114     {
 115       Drul_array<SCM> pads;
 116
 117       /*
 118         Use a cons?
 119        */
 120       pads[RIGHT] = get_elt_property ("right-padding");
 121       pads[LEFT] = get_elt_property ("left-padding");
 122
 123       Direction d = LEFT;
 124       do {
 125         if (!gh_number_p (pads[d]))
 126           continue;
 127
 128         Box b(Interval (0, gh_scm2double (pads[d]) * note_distance),
 129               Interval (0,0));
 130         Molecule m (lookup_l ()->fill (b));
 131         output->add_at_edge (X_AXIS, d, m, 0);
 132       } while ( flip (&d)!= LEFT);
 133     }
 134
 135   return output;
 136 }
 137