source file of the GNU LilyPond music typesetter
- (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
// are looking at that edge of the beam segment that is furthest from its
// stem).
Direction event_dir = LEFT;
+ Beam_stem_segment const& seg = segs[j];
do
{
+ Beam_stem_segment const& neighbor_seg = segs[j + event_dir];
// TODO: make names clearer? --jneem
// on_line_bound: whether the current segment is on the boundary of the WHOLE beam
// on_beam_bound: whether the current segment is on the boundary of just that part
// of the beam with the current beam_rank
- bool on_line_bound = (segs[j].dir_ == LEFT) ? segs[j].stem_index_ == 0
- : segs[j].stem_index_ == stems.size() - 1;
+ bool on_line_bound = (seg.dir_ == LEFT) ? seg.stem_index_ == 0
+ : seg.stem_index_ == stems.size() - 1;
bool on_beam_bound = (event_dir == LEFT) ? j == 0 :
j == segs.size () - 1;
bool inside_stem = (event_dir == LEFT)
- ? segs[j].stem_index_ > 0
- : segs[j].stem_index_ + 1 < stems.size () ;
+ ? seg.stem_index_ > 0
+ : seg.stem_index_ + 1 < stems.size () ;
bool event = on_beam_bound
- || abs (segs[j].rank_ - segs[j+event_dir].rank_) > 1
- || (abs (vertical_count) >= segs[j].max_connect_
- || abs (vertical_count) >= segs[j + event_dir].max_connect_);
+ || abs (seg.rank_ - neighbor_seg.rank_) > 1
+ || (abs (vertical_count) >= seg.max_connect_
+ || abs (vertical_count) >= neighbor_seg.max_connect_);
if (!event)
// Then this edge of the current segment is irrelevent because it will
continue;
current.vertical_count_ = vertical_count;
- current.horizontal_[event_dir] = segs[j].stem_x_;
- if (segs[j].dir_ == event_dir)
+ current.horizontal_[event_dir] = seg.stem_x_;
+ if (seg.dir_ == event_dir)
// then we are examining the edge of a beam segment that is furthest
// from its stem.
{
}
else
{
- Real notehead_width =
- Stem::duration_log (segs[j].stem_) == 1
- ? 1.98
- : 1.32; // URG.
-
+ Grob *stem = stems[seg.stem_index_];
+ Drul_array<Real> beamlet_length =
+ robust_scm2interval (stem->get_property ("beamlet-default-length"), Interval (1.1, 1.1));
+ Drul_array<Real> max_proportion =
+ robust_scm2interval (stem->get_property ("beamlet-max-length-proportion"), Interval (0.75, 0.75));
+ Real length = beamlet_length[seg.dir_];
if (inside_stem)
{
- Grob *neighbor_stem = stems[segs[j].stem_index_ + event_dir];
- Real neighbor_stem_x
- = neighbor_stem->relative_coordinate (commonx, X_AXIS);
+ Grob *neighbor_stem = stems[seg.stem_index_ + event_dir];
+ Real neighbor_stem_x = neighbor_stem->relative_coordinate (commonx, X_AXIS);
- notehead_width = min (notehead_width,
- fabs (neighbor_stem_x - segs[j].stem_x_)/2.5);
+ length = min (length,
+ fabs (neighbor_stem_x - seg.stem_x_) * max_proportion[seg.dir_]);
}
- current.horizontal_[event_dir] += event_dir * notehead_width;
+ current.horizontal_[event_dir] += event_dir * length;
}
}
else
// we are examining the edge of a beam segment that is closest
// (ie. touching, unless there is a gap) its stem.
{
- current.horizontal_[event_dir] += event_dir * segs[j].width_/2;
- if (segs[j].gapped_)
+ current.horizontal_[event_dir] += event_dir * seg.width_/2;
+ if (seg.gapped_)
{
current.horizontal_[event_dir] -= event_dir * gap_length;
- if (Stem::is_invisible (segs[j].stem_))
+ if (Stem::is_invisible (seg.stem_))
{
/*
Need to do this in case of whole notes. We don't want the
heads to collide with the beams.
*/
- extract_grob_set (segs[j].stem_, "note-heads", heads);
+ extract_grob_set (seg.stem_, "note-heads", heads);
for (vsize k = 0; k < heads.size (); k ++)
current.horizontal_[event_dir]
*/
MAKE_SCHEME_CALLBACK (Beam, calc_least_squares_positions, 2);
SCM
-Beam::calc_least_squares_positions (SCM smob, SCM posns)
+Beam::calc_least_squares_positions (SCM smob, SCM /* posns */)
{
- (void) posns;
-
Grob *me = unsmob_grob (smob);
int count = normal_stem_count (me);