#include "all-font-metrics.hh"
#include "book.hh"
-#include "gourlay-breaking.hh"
#include "international.hh"
#include "main.hh"
#include "misc.hh"
layout_ = layout;
system_ = 0;
systems_ = SCM_EOL;
- paper_systems_ = SCM_EOL;
+ paper_systems_ = SCM_BOOL_F;
}
Paper_score::Paper_score (Paper_score const &s)
}
-vector<int>
+vector<vsize>
Paper_score::find_break_indices () const
{
vector<Grob*> all = root_system ()->columns ();
- vector<int> retval;
+ vector<vsize> retval;
for (vsize i = 0; i < all.size (); i++)
- if (Item::is_breakable (all[i]))
- retval.push_back (i);
+ {
+ Item *it = dynamic_cast<Item*> (all[i]);
+ if (Paper_column::is_breakable (all[i])
+ && (i == 0 || it->find_prebroken_piece (LEFT))
+ && (i == all.size () - 1 || it->find_prebroken_piece (RIGHT)))
+ retval.push_back (i);
+ }
+
+ cols_ = all;
+ break_indices_ = retval;
return retval;
}
+vector<vsize>
+Paper_score::get_break_indices () const
+{
+ if (break_indices_.empty ())
+ find_break_indices ();
+ return break_indices_;
+}
+
+vector<Grob*>
+Paper_score::get_columns () const
+{
+ if (cols_.empty ())
+ find_break_indices ();
+ return cols_;
+}
vector<Column_x_positions>
Paper_score::calc_breaking ()
{
- Break_algorithm *algorithm = 0;
+ Constrained_breaking algorithm;
vector<Column_x_positions> sol;
-
+
+ message (_ ("Calculating line breaks...") + " ");
+
int system_count = robust_scm2int (layout ()->c_variable ("system-count"), 0);
if (system_count)
- {
- Constrained_breaking *b = new Constrained_breaking;
- b->resize (system_count);
- algorithm = b;
- }
- else
- algorithm = new Gourlay_breaking;
+ algorithm.resize (system_count);
- algorithm->set_pscore (this);
- sol = algorithm->solve ();
- delete algorithm;
+ algorithm.set_pscore (this);
+ sol = algorithm.solve ();
return sol;
}
doubly, also done in Score_engraver */
vector<Grob*> pc (system_->columns ());
- pc[0]->set_property ("breakable", SCM_BOOL_T);
- pc.back ()->set_property ("breakable", SCM_BOOL_T);
+ pc[0]->set_property ("line-break-permission", ly_symbol2scm ("allow"));
+ pc.back ()->set_property ("line-break-permission", ly_symbol2scm ("allow"));
system_->pre_processing ();
-
- vector<Column_x_positions> breaking = calc_breaking ();
- system_->break_into_pieces (breaking);
-
- paper_systems_ = system_->get_paper_systems ();
}
System *
}
SCM
-Paper_score::get_paper_systems () const
+Paper_score::get_paper_systems ()
{
+ if (paper_systems_ == SCM_BOOL_F)
+ {
+ vector<Column_x_positions> breaking = calc_breaking ();
+ system_->break_into_pieces (breaking);
+ message (_ ("Drawing systems...") + " ");
+ paper_systems_ = system_->get_paper_systems ();
+ }
return paper_systems_;
}