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 #include "main.hh"
  16 #include "debug.hh"
  17
  18 Line_of_score::Line_of_score()
  19 {
  20   set_elt_property ("columns", SCM_EOL);
  21   set_axes (Y_AXIS,X_AXIS);
  22 }
  23
  24
  25
  26 void
  27 Line_of_score::output_lines ()
  28 {
  29   for (int i=0; i < broken_into_l_arr_.size (); i++)
  30     {
  31       Line_of_score *line_l = dynamic_cast<Line_of_score*> (broken_into_l_arr_[i]);
  32
  33       progress_indication ("[");
  34       line_l->post_processing ();
  35       progress_indication (to_str (i));
  36       line_l->output_line (i + 1 == broken_into_l_arr_.size ());
  37       progress_indication ("]");
  38     }
  39 }
  40
  41 // const?
  42 void
  43 Line_of_score::break_into_pieces (Array<Column_x_positions> const &breaking)
  44 {
  45   for (int i=0; i < breaking.size (); i++)
  46     {
  47       Line_of_score *line_l = dynamic_cast <Line_of_score*> (clone());
  48       line_l->rank_i_ = i;
  49       Link_array<Paper_column> c (breaking[i].cols_);
  50       pscore_l_->typeset_element (line_l);
  51       line_l->set_bounds(LEFT,c[0]);
  52       line_l->set_bounds(RIGHT,c.top ());
  53       for (int j=0; j < c.size(); j++)
  54         {
  55           c[j]->translate_axis (breaking[i].config_[j],X_AXIS);
  56           c[j]->line_l_ = line_l;
  57         }
  58
  59       broken_into_l_arr_.push (line_l);
  60     }
  61 }
  62
  63 void
  64 Line_of_score::add_column (Paper_column*p)
  65 {
  66   set_elt_property ("columns",
  67                     gh_cons (p->self_scm_, get_elt_property ("columns")));
  68   add_element (p);
  69 }
  70
  71 void
  72 Line_of_score::do_print() const
  73 {
  74   Spanner::do_print();
  75   Axis_group_spanner::do_print ();
  76 }
  77
  78 void
  79 Line_of_score::output_line (bool last_line)
  80 {
  81   Interval i(extent(Y_AXIS));
  82   if (i.empty_b())
  83     programming_error ("Huh?  Empty Line_of_score?");
  84   else
  85     translate_axis (- i[MAX], Y_AXIS);
  86
  87   pscore_l_->outputter_l_->start_line (i.length ());
  88   Super_element::output_all ();
  89   if (last_line)
  90     pscore_l_->outputter_l_->stop_last_line();
  91   else
  92     pscore_l_->outputter_l_->stop_line ();
  93 }
  94
  95 int
  96 Line_of_score::compare (Line_of_score* const &p1,Line_of_score* const &p2)
  97 {
  98   return p1->rank_i_ - p2->rank_i_;
  99 }