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 "paper-column.hh"
  13 #include "paper-score.hh"
  14 #include "warn.hh"
  15
  16 Line_of_score::Line_of_score()
  17 {
  18   set_axes (Y_AXIS,X_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 // const?
  28 Line_of_score*
  29 Line_of_score::set_breaking (Array<Column_x_positions> const &breaking, int j)
  30 {
  31   const Link_array<Paper_column> &curline (breaking[j].cols_);
  32   const Array<Real> &config (breaking[j].config_);
  33   Line_of_score *line_l=0;
  34
  35   line_l = dynamic_cast <Line_of_score*> (clone());
  36   line_l->rank_i_ = j;
  37
  38   line_l->cols_ = curline;
  39   line_l->set_bounds(LEFT,curline[0]);
  40   line_l->set_bounds(RIGHT,curline.top());
  41
  42   for (int i=0; i < curline.size(); i++)
  43     {
  44       curline[i]->translate_axis (config[i],X_AXIS);
  45       curline[i]->line_l_ = dynamic_cast<Line_of_score*> (line_l);
  46     }
  47
  48   broken_into_l_arr_.push (line_l);
  49   return line_l;
  50 }
  51
  52 void
  53 Line_of_score::add_column (Paper_column*p)
  54 {
  55   cols_.push (p);
  56   add_element (p);
  57 }
  58
  59 void
  60 Line_of_score::do_print() const
  61 {
  62   Spanner::do_print();
  63   Axis_group_spanner::do_print ();
  64 }
  65
  66 Link_array<Score_element>
  67 Line_of_score::get_extra_dependencies () const
  68 {
  69   Link_array<Score_element> r (Axis_group_spanner::get_extra_dependencies ());
  70   for (int i=0; i < cols_.size (); i++)
  71     r.push (cols_[i]);
  72   return r;
  73 }
  74
  75 void
  76 Line_of_score::do_substitute_element_pointer (Score_element*o, Score_element*n)
  77 {
  78   if (Paper_column *p = dynamic_cast<Paper_column*>(o))
  79     cols_.substitute (p, dynamic_cast<Paper_column*>(n));
  80 }
  81
  82 void
  83 Line_of_score::output_all (bool last_line)
  84 {
  85   Interval i(extent(Y_AXIS));
  86   if (i.empty_b())
  87     warning (_ ("Huh?  Empty Line_of_score?"));
  88   else
  89     translate_axis (- i[MAX], Y_AXIS);
  90
  91   pscore_l_->outputter_l_->start_line (i.length ());
  92   Super_element::output_all ();
  93   if (last_line)
  94     pscore_l_->outputter_l_->stop_last_line();
  95   else
  96     pscore_l_->outputter_l_->stop_line ();
  97 }
  98
  99 int
 100 Line_of_score::compare (Line_of_score* const &p1,Line_of_score* const &p2)
 101 {
 102   return p1->rank_i_ - p2->rank_i_;
 103 }