lily/line-of-score.cc

   1 /*
   2   scoreline.cc -- implement Line_of_score
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1996,  1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "line-of-score.hh"
  10 #include "paper-def.hh"
  11 #include "paper-outputter.hh"
  12 #include "p-col.hh"
  13 #include "p-score.hh"
  14 #include "warn.hh"
  15
  16 Line_of_score::Line_of_score()
  17 {
  18   set_axes (Y_AXIS,Y_AXIS);
  19 }
  20
  21 bool
  22 Line_of_score::contains_b (Paper_column const* c) const
  23 {
  24   return cols_.find_l ((Paper_column*)(c));
  25 }
  26
  27 Line_of_score*
  28 Line_of_score::set_breaking (Array<Column_x_positions> const &breaking, int j) const
  29 {
  30   const Link_array<Paper_column> &curline (breaking[j].cols);
  31   const Array<Real> &config (breaking[j].config);
  32   Line_of_score *line_l=0;
  33
  34   line_l = dynamic_cast <Line_of_score*> (clone());
  35
  36   line_l->cols_ = curline;
  37   line_l->set_bounds(LEFT,curline[0]);
  38   line_l->set_bounds(RIGHT,curline.top());
  39
  40   for (int i=0; i < curline.size(); i++)
  41     {
  42       curline[i]->translate_axis (config[i],X_AXIS);
  43       curline[i]->line_l_ = dynamic_cast<Line_of_score*>(line_l);
  44     }
  45
  46   Breaking_information b;
  47   b.bounds_ = line_l->spanned_drul_;
  48   b.broken_spanner_l_ = line_l;
  49   b.line_l_ = line_l;
  50
  51   broken_info_.push (b);
  52
  53   return line_l;
  54 }
  55
  56 void
  57 Line_of_score::add_column (Paper_column*p)
  58 {
  59   cols_.push (p);
  60 }
  61
  62 void
  63 Line_of_score::do_print() const
  64 {
  65   Spanner::do_print();
  66   Axis_group_spanner::do_print ();
  67 }
  68
  69 Link_array<Score_element>
  70 Line_of_score::get_extra_dependencies () const
  71 {
  72   Link_array<Score_element> r (Axis_group_spanner::get_extra_dependencies ());
  73   for (int i=0; i < cols_.size (); i++)
  74     r.push (cols_[i]);
  75   return r;
  76 }
  77
  78 void
  79 Line_of_score::do_substitute_element_pointer (Score_element*o, Score_element*n)
  80 {
  81   if (Paper_column *p = dynamic_cast<Paper_column*>(o))
  82     cols_.substitute (p, dynamic_cast<Paper_column*>(n));
  83 }
  84
  85 void
  86 Line_of_score::output_all ()
  87 {
  88   Interval i(extent(Y_AXIS));
  89   if (i.empty_b())
  90     warning ("Huh? Empty Line_of_score?");
  91   else
  92     translate_axis (- i[MAX], Y_AXIS);
  93
  94   pscore_l_->outputter_l_->start_line (i.length ());
  95   Super_element::output_all ();
  96   pscore_l_->outputter_l_->stop_line ();
  97 }