-vector<Simple_spacer>
-System::get_simple_spacers (Real line_len, Real indent, bool ragged)
-{
- if (!simple_spacers_.size ())
- gen_simple_spacers (line_len, indent, ragged);
-
- return simple_spacers_;
-}
-
-void
-System::gen_simple_spacers (Real line_len, Real indent, bool ragged)
-{
- vector<vsize> breaks;
- vector<Grob *> non_loose;
- vector<Column_description> cols;
- SCM force_break = ly_symbol2scm ("force");
- vector<Grob *> columns = used_columns ();
-
- for (vsize i = 0; i < columns.size (); i++)
- if (!Paper_column::is_loose (columns[i])
- || Paper_column::is_breakable (columns[i]))
- non_loose.push_back (columns[i]);
-
- breaks.clear ();
- breaks.push_back (0);
- cols.push_back (Column_description ());
- for (vsize i = 1; i + 1 < non_loose.size (); i++)
- {
- if (Paper_column::is_breakable (non_loose[i]))
- breaks.push_back (cols.size ());
-
- cols.push_back (Column_description::get_column_description (non_loose, i, false));
- }
- breaks.push_back (cols.size ());
- simple_spacers_.resize (breaks.size () * breaks.size (), Simple_spacer ());
-
- for (vsize b = 0; b + 1 < breaks.size (); b++)
- {
- cols[breaks[b]] = Column_description::get_column_description (non_loose, breaks[b], true);
- vsize st = breaks[b];
-
- for (vsize c = b + 1; c < breaks.size (); c++)
- {
- vsize end = breaks[c];
- Simple_spacer spacer;
-
- for (vsize i = breaks[b]; i < end - 1; i++)
- spacer.add_spring (cols[i].spring_);
- spacer.add_spring (cols[end - 1].end_spring_);
-
- for (vsize i = breaks[b]; i < end; i++)
- {
- for (vsize r = 0; r < cols[i].rods_.size (); r++)
- if (cols[i].rods_[r].r_ < end)
- spacer.add_rod (i - st, cols[i].rods_[r].r_ - st, cols[i].rods_[r].dist_);
- for (vsize r = 0; r < cols[i].end_rods_.size (); r++)
- if (cols[i].end_rods_[r].r_ == end)
- spacer.add_rod (i - st, end - st, cols[i].end_rods_[r].dist_);
- if (!cols[i].keep_inside_line_.is_empty ())
- {
- spacer.add_rod (i - st, end - st, cols[i].keep_inside_line_[RIGHT]);
- spacer.add_rod (0, i - st, -cols[i].keep_inside_line_[LEFT]);
- }
- }
- spacer.solve ((b == 0) ? line_len - indent : line_len, ragged);
- spacer.minimal_ = c == b + 1;
- simple_spacers_[b * breaks.size () + c] = spacer;
-
- if (!spacer.fits ()
- || (end < cols.size ()
- && cols[end].break_permission_ == force_break))
- break;
- }
- }
-}
-