lily/multi-measure-rest.cc

   1 /*
   2   multi-measure-rest.cc --  implement Multi_measure_rest
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1998--1999, 1999 Jan Nieuwenhuizen <janneke@gnu.org>
   7
   8  */
   9
  10 #include "multi-measure-rest.hh"
  11 #include "debug.hh"
  12 #include "paper-def.hh"
  13 #include "p-col.hh" // urg
  14 #include "bar.hh"
  15 #include "lookup.hh"
  16 #include "rest.hh"
  17 #include "script.hh"
  18 #include "text-def.hh"
  19 #include "molecule.hh"
  20 #include "misc.hh"
  21
  22
  23 Multi_measure_rest::Multi_measure_rest ()
  24 {
  25   measures_i_ = 0;
  26 }
  27
  28 void
  29 Multi_measure_rest::do_print () const
  30 {
  31   DOUT << "measures_i_ " << measures_i_;
  32 }
  33
  34 Molecule*
  35 Multi_measure_rest::do_brew_molecule_p () const
  36 {
  37   /*
  38    [TODO]                                          17
  39      * variable-sized multi-measure rest symbol: |====| ??
  40      * build 3, 5, 6, 7, 8 symbols (how far, property?)
  41        from whole, brevis and longa rests
  42    */
  43   Molecule* mol_p = new Molecule;
  44   if (!column_arr_.size ())
  45     return mol_p;
  46
  47   Molecule s;
  48   if (measures_i_ == 1 || measures_i_ == 2 || measures_i_ == 4)
  49     {
  50       s = (lookup_l ()->rest (- intlog2(measures_i_), 0));
  51       s.translate_axis (-s.extent ()[X_AXIS].length () / 2, X_AXIS);
  52     }
  53   else
  54     {
  55       s = (lookup_l ()->rest (-4, 0));
  56     }
  57   mol_p->add_molecule (s);
  58   Real interline_f = paper ()->interline_f ();
  59   if (measures_i_ == 1)
  60     {
  61       mol_p->translate_axis (interline_f, Y_AXIS);
  62     }
  63
  64   if (measures_i_ > 1)
  65     {
  66       Text_def text;
  67       text.text_str_ = to_str (measures_i_);
  68       text.style_str_ = "number";
  69       text.align_dir_ = CENTER;
  70       Molecule s = text.get_molecule (paper (), UP);
  71       s.translate_axis (3.0 * interline_f, Y_AXIS);
  72       mol_p->add_molecule (s);
  73     }
  74
  75   return mol_p;
  76 }
  77
  78 void
  79 Multi_measure_rest::do_add_processing ()
  80 {
  81   if (column_arr_.size ())
  82     {
  83       set_bounds (LEFT, column_arr_[0 >? column_arr_.size () - 2]);
  84       set_bounds (RIGHT, column_arr_[column_arr_.size () - 1]);
  85     }
  86 }
  87
  88 void
  89 Multi_measure_rest::do_post_processing ()
  90 {
  91   if (column_arr_.size ())
  92     translate_axis (extent (X_AXIS).length () / 2, X_AXIS);
  93 }
  94
  95 void
  96 Multi_measure_rest::do_substitute_element_pointer (Score_element* o, Score_element* n)
  97 {
  98   if (Item* c = dynamic_cast <Item*> (o))
  99     column_arr_.substitute (c, dynamic_cast<Item*> (n));
 100 }
 101
 102 void
 103 Multi_measure_rest::add_column (Item* c)
 104 {
 105   column_arr_.push (c);
 106   add_dependency (c);
 107 }
 108
 109
 110 Array<Rod>
 111 Multi_measure_rest::get_rods () const
 112 {
 113   Array<Rod> a;
 114   Rod r;
 115   r.item_l_drul_ = spanned_drul_;
 116   r.distance_f_ = paper ()->get_var ("mmrest_x_minimum");
 117   a.push (r);
 118   return a;
 119 }