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--2000 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 #include "lookup.hh"
  12 #include "paper-def.hh"
  13 #include "musical-request.hh"
  14 #include "note-head.hh"
  15 #include "misc.hh"
  16
  17 void
  18 Local_key_item::add_pitch (Musical_pitch p, bool cautionary, bool natural)
  19 {
  20   for (int i=0; i< accidental_arr_.size(); i++)
  21     if (!Musical_pitch::compare (p, accidental_arr_[i].pitch_))
  22       return;
  23           /* maybe natural (and cautionary) should be modif. nonetheless? */
  24
  25   Local_key_cautionary_tuple t;
  26   t.pitch_ = p;
  27   t.cautionary_b_ = cautionary;
  28   t.natural_b_ = natural;
  29   accidental_arr_.push (t);
  30 }
  31
  32 GLUE_SCORE_ELEMENT(Local_key_item,before_line_breaking);
  33
  34 SCM
  35 Local_key_item::member_before_line_breaking ()
  36 {
  37   accidental_arr_.sort (Local_key_cautionary_tuple::compare);
  38   return SCM_UNDEFINED;
  39 }
  40
  41 Molecule
  42 Local_key_item::accidental (int j, bool cautionary, bool natural) const
  43 {
  44   Molecule m (lookup_l ()->afm_find (String ("accidentals-") + to_str (j)));
  45   if (natural)
  46     {
  47       Molecule prefix = lookup_l ()->afm_find (String ("accidentals-0"));
  48       m.add_at_edge(X_AXIS, LEFT, Molecule(prefix), 0);
  49     }
  50   if (cautionary)
  51     {
  52       Molecule open = lookup_l ()->afm_find (String ("accidentals-("));
  53       Molecule close = lookup_l ()->afm_find (String ("accidentals-)"));
  54       m.add_at_edge(X_AXIS, LEFT, Molecule(open), 0);
  55       m.add_at_edge(X_AXIS, RIGHT, Molecule(close), 0);
  56     }
  57
  58   return m;
  59 }
  60
  61 /*
  62   UGH. clean me up
  63  */
  64
  65 GLUE_SCORE_ELEMENT(Local_key_item,brew_molecule);
  66 SCM
  67 Local_key_item::member_brew_molecule () const
  68 {
  69   Molecule mol;
  70   Staff_symbol_referencer_interface si (this);
  71   Real note_distance = si.staff_space ()/2;
  72   Molecule octave_mol;
  73   bool oct_b = false;
  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 (oct_b)
  83             {
  84               Real dy =lastoct*7* note_distance;
  85               octave_mol.translate_axis (dy, Y_AXIS);
  86               mol.add_molecule (octave_mol);
  87               octave_mol = Molecule ();
  88             }
  89           oct_b = true;
  90         }
  91
  92       lastoct = p.octave_i_;
  93
  94       SCM c0 =  get_elt_property ("c0-position");
  95       Real dy = (gh_number_p (c0) ? gh_scm2int (c0) : 0 + p.notename_i_)
  96         * note_distance;
  97
  98       Molecule m (accidental (p.accidental_i_,
  99                               accidental_arr_[i].cautionary_b_,
 100                               accidental_arr_[i].natural_b_));
 101
 102       m.translate_axis (dy, Y_AXIS);
 103       octave_mol.add_at_edge (X_AXIS, RIGHT, m, 0);
 104     }
 105
 106   if (oct_b)
 107     {
 108       Real dy =lastoct*7*note_distance;
 109       octave_mol.translate_axis (dy, Y_AXIS);
 110       mol.add_molecule (octave_mol);
 111       octave_mol = Molecule ();
 112     }
 113
 114  if (accidental_arr_.size())
 115     {
 116       Drul_array<SCM> pads;
 117
 118       /*
 119         Use a cons?
 120        */
 121       pads[RIGHT] = get_elt_property ("right-padding");
 122       pads[LEFT] = get_elt_property ("left-padding");
 123
 124
 125       // unused ?
 126       Direction d = LEFT;
 127       do {
 128         if (!gh_number_p (pads[d]))
 129           continue;
 130
 131         Box b(Interval (0, gh_scm2double (pads[d]) * note_distance),
 132               Interval (0,0));
 133         Molecule m (lookup_l ()->blank (b));
 134         mol.add_at_edge (X_AXIS, d, m, 0);
 135       } while ( flip (&d)!= LEFT);
 136     }
 137
 138   return mol.create_scheme();
 139 }
 140
 141 Local_key_item::Local_key_item (SCM s)
 142   : Item (s)
 143 {
 144
 145 }