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"
-
-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;
-}
-
-/* **************************************************************** */
-
+#include "simple-spacer.hh"
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
{
- // ugh
- Spring_spacer * sp= dynamic_cast<Spring_spacer*> ((*get_line_spacer) ());
-
- sp->paper_l_ = pscore_l_->paper_l_;
- sp->add_column (curline[0], true, line[LEFT]);
- for (int i=1; i< curline.size ()-1; i++)
- sp->add_column (curline[i]);
-
- if (line.length () > 0)
- {
- sp->add_column (curline.top (), true, line[RIGHT]);
- sp->energy_normalisation_f_ = sqr (line.length ());
- }
+ Simple_spacer_wrapper *spw = new Simple_spacer_wrapper;
+ Simple_spacer *sp = spw->spacer_;
+
+ /*
+ 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.is_empty ())
+ sp->line_len_ = -1;
else
- sp->add_column (curline.top ());
+ sp->line_len_ = line.length ();
- sp->prepare ();
- 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;
-}
-
-void
-Break_algorithm::problem_OK () const
-{
- if (pscore_l_->col_l_arr_.empty ())
- error (_("score does not have any columns"));
- OK ();
+ pscore_ = 0;
+ linewidth_ = 0;
}
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 ()
{
-
}