* The grand 2005-2006 replace.

[lilypond.git] / lily / break-algorithm.cc

diff --git a/lily/break-algorithm.cc b/lily/break-algorithm.cc
index 6674d5bcf0e8c1b130a3fb1a2050bbf7845748d4..083aca8cbe03d187d8fc58da0351a16eaabe7a13 100644 (file)
--- a/lily/break-algorithm.cc
+++ b/lily/break-algorithm.cc
@@ -3,182 +3,99 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1996,  1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1996--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
-#include "score-column.hh"
-#include "break.hh"
-#include "paper-def.hh"
-#include "spring-spacer.hh"
-#include "debug.hh"
-#include "line-of-score.hh"
+#include "break-algorithm.hh"
+#include "paper-column.hh"
+#include "output-def.hh"
+#include "system.hh"
 #include "paper-score.hh"
 #include "paper-column.hh"
 #include "cpu-timer.hh"
-#include "command-request.hh"
-#include "spring-spacer.hh"
 #include "simple-spacer.hh"
 
-
-String
-Col_stats::str () const
-{
-  String s;
-  if (!count_i_)
-    s = _ ("0 lines");
-  else if (count_i_ == 1)
-    s = _f ("1 line (of %.0f columns)", (Real)cols_i_/count_i_);
-  else
-    s = _f ("%d lines (with an average of %.1f columns)", 
-      count_i_, (Real)cols_i_/count_i_);
-  return s;
-}
-
-void
-Col_stats::add (Line_of_cols const& line)
-{
-  count_i_++;
-  cols_i_ += line.size ();
-}
-
-
-Col_stats::Col_stats ()
-{
-  count_i_ =0;
-  cols_i_ =0;
-}
-
-/* **************************************************************** */
-
-
 Array<int>
 Break_algorithm::find_break_indices () const
 {
-  Line_of_cols all (pscore_l_->col_l_arr_);
+  Link_array<Grob> all = pscore_->root_system ()->columns ();
   Array<int> retval;
 
-  for (int i=0; i < all.size (); i++)
-    if (all[i]->breakable_b ())
+  for (int i = 0; i < all.size (); i++)
+    if (Item::is_breakable (all[i]))
       retval.push (i);
 
-  if (linelength <=0)
-    while (retval.size () >2)
+  if (linewidth_ <= 0)
+    while (retval.size () > 2)
       retval.del (1);
 
   return retval;
 }
 
-
-Line_of_cols
+Link_array<Grob>
 Break_algorithm::find_breaks () const
 {
-  Line_of_cols all (pscore_l_->col_l_arr_);
-  Line_of_cols retval;
+  Link_array<Grob> all = pscore_->root_system ()->columns ();
+  Link_array<Grob> retval;
 
-  for (int i=0; i < all.size (); i++)
-    if (all[i]->breakable_b ())
+  for (int i = 0; i < all.size (); i++)
+    if (Item::is_breakable (all[i]))
       retval.push (all[i]);
 
-  if (linelength <=0)
-    while (retval.size () >2)
+  if (linewidth_ <= 0)
+    while (retval.size () > 2)
       retval.del (1);
 
   return retval;
 }
 
-
-Line_spacer*
-Break_algorithm::generate_spacing_problem (Line_of_cols curline, Interval line) const
+Simple_spacer_wrapper *
+Break_algorithm::generate_spacing_problem (Link_array<Grob> const &curline,
+                                          Interval line) const
 {
-  Real r = pscore_l_->paper_l_->get_var ("simple_spacing_solver");
-    
-  Line_spacer * sp = 0;
-  if (r)
-    sp = new Simple_spacer;
-  else
-    sp = new Spring_spacer;
-  
-  sp->default_space_f_ = pscore_l_->paper_l_->get_var ("loose_column_distance");
+  Simple_spacer_wrapper *spw = new Simple_spacer_wrapper;
+  Simple_spacer *sp = spw->spacer_;
 
-  sp->indent_f_ = line[LEFT];
+  /*
+    this is hardcoded, but this shouldn't happen anyway.
+    used to be get_dimension (ly_symbol2scm ("loose_column_distance"));
+  */
+  sp->default_space_ = 1.0;
+  sp->indent_ = line[LEFT];
 
   /*
     sort out how interfacing this should work;
-   */
-  if (line.empty_b())
-    {
-     sp->line_len_f_ = -1;
-    }
+  */
+  if (line.is_empty ())
+    sp->line_len_ = -1;
   else
-    sp->line_len_f_ = line.length ();
-  
-  sp->add_columns (curline);
-  sp->prepare ();
+    sp->line_len_ = line.length ();
 
-  return sp;
+  spw->add_columns (curline);
+  return spw;
 }
 
 Break_algorithm::Break_algorithm ()
 {
-  pscore_l_ = 0;
-  get_line_spacer =0;
-  linelength = 0;
-}
-
-void
-Break_algorithm::set_pscore (Paper_score*s)
-{
-  pscore_l_ = s;
-  linelength = s->paper_l_->linewidth_f ();
-  do_set_pscore ();
-}
-
-bool
-Break_algorithm::feasible (Line_of_cols curline) const
-{
-  if (linelength <=  0)
-    return true;
-
-  for (int i=0; i < curline.size (); i++)
-    {
-      if (i && i < curline.size () -1
-         && ((dynamic_cast<Score_column*>(curline[i]))->break_penalty_i () >= Break_req::FORCE))
-       return false;
-    }
-  return true;
+  pscore_ = 0;
+  linewidth_ = 0;
 }
 
 void
-Break_algorithm::problem_OK () const
-{
-  if (pscore_l_->col_l_arr_.empty ())
-    error (_("score does not have any columns"));
-  OK ();
-}
-
-void
-Break_algorithm::OK () const
+Break_algorithm::set_pscore (Paper_score *s)
 {
+  pscore_ = s;
+  linewidth_ = s->layout ()->get_dimension (ly_symbol2scm ("linewidth"));
 }
 
 Array<Column_x_positions>
 Break_algorithm::solve () const
 {
-  Cpu_timer timer;
-
   Array<Column_x_positions> h= do_solve ();
 
-  if (approx_stats_.count_i_)
-    *mlog << '\n' << _f ("approximated %s", approx_stats_.str ()) << endl;
-  if (exact_stats_.count_i_)
-    *mlog << _f ("calculated %s exactly", exact_stats_.str ()) << endl;
-  *mlog << _f ("elapsed time %.2f seconds",  timer.read ()) << endl;
-
   return h;
 }
 
-void
-Break_algorithm::do_set_pscore ()
+Break_algorithm::~Break_algorithm ()
 {
-
 }