source file of the GNU LilyPond music typesetter
- (c) 1999--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 1999--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "spacing-spanner.hh"
*/
Spacing_options options;
options.init_from_grob (me);
+ vector<Grob*> cols = Spacing_spanner::get_columns (me);
+ set_explicit_neighbor_columns (cols);
- set_explicit_neighbor_columns (options.columns_);
-
- prune_loose_columns (me, &options);
- set_implicit_neighbor_columns (options.columns_);
- generate_springs (me, &options);
+ prune_loose_columns (me, &cols, &options);
+ set_implicit_neighbor_columns (cols);
+ generate_springs (me, cols, &options);
return SCM_UNSPECIFIED;
}
void
Spacing_spanner::generate_springs (Grob *me,
+ vector<Grob*> const &cols,
Spacing_options const *options)
{
Paper_column *prev = 0;
- for (vsize i = 0; i < options->columns_.size (); i++)
+ for (vsize i = 0; i < cols.size (); i++)
{
- Paper_column *col = dynamic_cast<Paper_column *> (options->columns_[i]);
- Paper_column *next = (i < options->columns_.size()-1) ? dynamic_cast<Paper_column *> (options->columns_[i+1]) : 0;
+ Paper_column *col = dynamic_cast<Paper_column *> (cols[i]);
+ Paper_column *next = (i < cols.size()-1) ? dynamic_cast<Paper_column *> (cols[i+1]) : 0;
if (i > 0)
generate_pair_spacing (me, prev, col, next, options);
Spaceable_grob::add_spring (left_col, right_col, distance, inverse_strength);
}
+/*
+ Check if COL fills the whole measure.
+ */
bool
-Spacing_spanner::fills_measure (Grob *me, Item *l, Item *r)
+Spacing_spanner::fills_measure (Grob *me, Item *left, Item *col)
{
- return false;
System *sys = get_root_system (me);
- Grob *next = sys->column (r->get_column()->get_rank () + 1);
+ Item *next = sys->column (col->get_column()->get_rank () + 1);
if (!next)
return false;
+ if (Paper_column::is_musical (next)
+ || Paper_column::is_musical (left)
+ || !Paper_column::is_musical (col)
+ || !Paper_column::is_used (next))
+ return false;
+
Moment dt =
- Paper_column::when_mom (next) - Paper_column::when_mom (r);
+ Paper_column::when_mom (next) - Paper_column::when_mom (col);
- Moment *len = unsmob_moment (l->get_property ("measure-length"));
+ Moment *len = unsmob_moment (left->get_property ("measure-length"));
if (!len)
return false;
- if (dt.main_part_ == len->main_part_)
+ /*
+ Don't check for exact measure length, since ending measures are
+ often shortened due to pickups.
+ */
+ if (dt.main_part_ > len->main_part_ / Rational (2)
+ && (next->is_broken ()
+ || next->break_status_dir ()))
return true;
return false;
}
- if (fills_measure (me, l, r))
+ if (Paper_column::is_musical (r)
+ && l->break_status_dir () == CENTER
+ && fills_measure (me, l, r))
{
compound_space += 1.0;
}
);
-ADD_INTERFACE (Spacing_interface,
- "Something to do with line breaking and spacing. "
- "Kill this one after determining line breaks.",
-
- "");
-