/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 1997--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
LilyPond is free software: you can redistribute it and/or modify
#include "beam.hh"
+#include "axis-group-interface.hh"
#include "align-interface.hh"
#include "beam-scoring-problem.hh"
#include "beaming-pattern.hh"
typedef map<int, vector<Beam_stem_segment> > Position_stem_segments_map;
-// TODO - should store result in a property?
-vector<Beam_segment>
-Beam::get_beam_segments (Grob *me_grob, Grob **common)
+MAKE_SCHEME_CALLBACK (Beam, calc_beam_segments, 1);
+SCM
+Beam::calc_beam_segments (SCM smob)
{
/* ugh, this has a side-effect that we need to ensure that
Stem #'beaming is correct */
+ Grob *me_grob = unsmob_grob (smob);
(void) me_grob->get_property ("beaming");
Spanner *me = dynamic_cast<Spanner *> (me_grob);
extract_grob_set (me, "stems", stems);
- Grob *commonx = common_refpoint_of_array (stems, me, X_AXIS);
-
- commonx = me->get_bound (LEFT)->common_refpoint (commonx, X_AXIS);
- commonx = me->get_bound (RIGHT)->common_refpoint (commonx, X_AXIS);
- *common = commonx;
+ Grob *commonx = common_refpoint_of_array (stems, me, X_AXIS);
+ Direction d = LEFT;
+ do
+ commonx = me->get_bound (d)->common_refpoint (commonx, X_AXIS);
+ while (flip (&d) != LEFT);
int gap_count = robust_scm2int (me->get_property ("gap-count"), 0);
Real gap_length = robust_scm2double (me->get_property ("gap"), 0.0);
Real stem_width = robust_scm2double (stem->get_property ("thickness"), 1.0) * lt;
Real stem_x = stem->relative_coordinate (commonx, X_AXIS);
SCM beaming = stem->get_property ("beaming");
- Direction d = LEFT;
+
do
{
// Find the maximum and minimum beam ranks.
|| abs (vertical_count) >= neighbor_seg.max_connect_);
if (!event)
- // Then this edge of the current segment is irrelevent because it will
+ // Then this edge of the current segment is irrelevant because it will
// be connected with the next segment in the event_dir direction.
+ // If we skip the left edge here, the right edge of
+ // the previous segment has already been skipped since
+ // the conditions are symmetric
continue;
current.vertical_count_ = vertical_count;
&& me->get_bound (event_dir)->break_status_dir ())
{
current.horizontal_[event_dir]
- = (robust_relative_extent (me->get_bound (event_dir),
- commonx, X_AXIS)[RIGHT]
+ = (Axis_group_interface::generic_bound_extent (me->get_bound (event_dir),
+ commonx, X_AXIS)[RIGHT]
+ event_dir * break_overshoot[event_dir]);
}
else
}
+ SCM segments_scm = SCM_EOL;
+ SCM *tail = &segments_scm;
+
+ for (vsize i = 0; i < segments.size (); i++)
+ {
+ *tail = scm_cons (scm_list_2 (scm_cons (ly_symbol2scm ("vertical-count"),
+ scm_from_int (segments[i].vertical_count_)),
+ scm_cons (ly_symbol2scm ("horizontal"),
+ ly_interval2scm (segments[i].horizontal_))),
+ SCM_EOL);
+ tail = SCM_CDRLOC (*tail);
+ }
+
+ return segments_scm;
+}
+
+MAKE_SCHEME_CALLBACK (Beam, calc_x_positions, 1);
+SCM
+Beam::calc_x_positions (SCM smob)
+{
+ Spanner *me = unsmob_spanner (smob);
+ SCM segments = me->get_property ("beam-segments");
+ Interval x_positions;
+ x_positions.set_empty ();
+ for (SCM s = segments; scm_is_pair (s); s = scm_cdr (s))
+ x_positions.unite (robust_scm2interval (ly_assoc_get (ly_symbol2scm ("horizontal"),
+ scm_car (s),
+ SCM_EOL),
+ Interval (0.0, 0.0)));
+
+ // Case for beams without segments (i.e. uniting two skips with a beam)
+ // TODO: should issue a warning? warning likely issued downstream, but couldn't hurt...
+ if (x_positions.is_empty ())
+ {
+ extract_grob_set (me, "stems", stems);
+ Grob *common_x = common_refpoint_of_array (stems, me, X_AXIS);
+ Direction d = LEFT;
+ do
+ x_positions[d] = me->relative_coordinate (common_x, X_AXIS);
+ while (flip (&d) != LEFT);
+ }
+ return ly_interval2scm (x_positions);
+}
+
+vector<Beam_segment>
+Beam::get_beam_segments (Grob *me)
+{
+ SCM segments_scm = me->get_property ("beam-segments");
+ vector<Beam_segment> segments;
+ for (SCM s = segments_scm; scm_is_pair (s); s = scm_cdr (s))
+ {
+ segments.push_back (Beam_segment ());
+ segments.back ().vertical_count_ = robust_scm2int (ly_assoc_get (ly_symbol2scm ("vertical-count"), scm_car (s), SCM_EOL), 0);
+ segments.back ().horizontal_ = robust_scm2interval (ly_assoc_get (ly_symbol2scm ("horizontal"), scm_car (s), SCM_EOL), Interval (0.0, 0.0));
+ }
+
return segments;
}
Beam::print (SCM grob)
{
Spanner *me = unsmob_spanner (grob);
- Grob *commonx = 0;
- vector<Beam_segment> segments = get_beam_segments (me, &commonx);
+ /*
+ TODO - mild code dup for all the commonx calls.
+ Some use just common_refpoint_of_array, some (in print and
+ calc_beam_segments) use this plus calls to get_bound.
+
+ Figure out if there is any particular reason for this and
+ consolidate in one Beam::get_common function.
+ */
+ extract_grob_set (me, "stems", stems);
+ Grob *commonx = common_refpoint_of_array (stems, me, X_AXIS);
+ Direction d = LEFT;
+ do
+ commonx = me->get_bound (d)->common_refpoint (commonx, X_AXIS);
+ while (flip (&d) != LEFT);
+
+ vector<Beam_segment> segments = get_beam_segments (me);
+
if (!segments.size ())
return SCM_EOL;
- Interval span;
- if (normal_stem_count (me))
- {
- span[LEFT] = first_normal_stem (me)->relative_coordinate (commonx, X_AXIS);
- span[RIGHT] = last_normal_stem (me)->relative_coordinate (commonx, X_AXIS);
- }
- else
- {
- extract_grob_set (me, "stems", stems);
- span[LEFT] = stems[0]->relative_coordinate (commonx, X_AXIS);
- span[RIGHT] = stems.back ()->relative_coordinate (commonx, X_AXIS);
- }
-
Real blot = me->layout ()->get_dimension (ly_symbol2scm ("blot-diameter"));
SCM posns = me->get_property ("quantized-positions");
+ Interval span = robust_scm2interval (me->get_property ("X-positions"), Interval (0, 0));
Interval pos;
if (!is_number_pair (posns))
{
Interval placements = robust_scm2interval (me->get_property ("normalized-endpoints"), Interval (0.0, 0.0));
Stencil the_beam;
-
int extreme = (segments[0].vertical_count_ == 0
? segments[0].vertical_count_
: segments.back ().vertical_count_);
return scm_from_double (0.0);
}
-MAKE_SCHEME_CALLBACK (Beam, quanting, 2);
+MAKE_SCHEME_CALLBACK (Beam, quanting, 3);
SCM
-Beam::quanting (SCM smob, SCM posns)
+Beam::quanting (SCM smob, SCM ys_scm, SCM align_broken_intos)
{
Grob *me = unsmob_grob (smob);
- Drul_array<Real> ys (0, 0);
- ys = robust_scm2drul (posns, ys);
- Beam_scoring_problem problem (me, ys);
+ Drul_array<Real> ys = robust_scm2drul (ys_scm, Drul_array<Real> (infinity_f, -infinity_f));
+ bool cbs = to_boolean (align_broken_intos);
+ Beam_scoring_problem problem (me, ys, cbs);
ys = problem.solve ();
+
return ly_interval2scm (ys);
}
Grob *fvs = first_normal_stem (me);
Grob *lvs = last_normal_stem (me);
- Real xl = fvs ? fvs->relative_coordinate (common[X_AXIS], X_AXIS) : 0.0;
- Real xr = lvs ? lvs->relative_coordinate (common[X_AXIS], X_AXIS) : 0.0;
+ Interval x_span = robust_scm2interval (me->get_property ("X-positions"), Interval (0, 0));
Direction feather_dir = to_dir (me->get_property ("grow-direction"));
for (vsize i = 0; i < stems.size (); i++)
bool french = to_boolean (s->get_property ("french-beaming"));
Real stem_y = calc_stem_y (me, s, common,
- xl, xr, feather_dir,
+ x_span[LEFT], x_span[RIGHT], feather_dir,
pos, french && s != lvs && s != fvs);
/*
|| !Beam::normal_stem_count (beam))
return scm_from_double (0.0);
+ Grob *common_y = rest->common_refpoint (beam, Y_AXIS);
+
Drul_array<Real> pos (robust_scm2drul (beam->get_property ("positions"),
Drul_array<Real> (0, 0)));
+ Direction dir = LEFT;
+ do
+ pos[dir] += beam->relative_coordinate (common_y, Y_AXIS);
+ while (flip (&dir) != LEFT);
+
Real staff_space = Staff_symbol_referencer::staff_space (rest);
scale_drul (&pos, staff_space);
Real dy = pos[RIGHT] - pos[LEFT];
- Drul_array<Grob *> visible_stems (first_normal_stem (beam),
- last_normal_stem (beam));
extract_grob_set (beam, "stems", stems);
-
Grob *common = common_refpoint_of_array (stems, beam, X_AXIS);
- Real x0 = visible_stems[LEFT]->relative_coordinate (common, X_AXIS);
- Real dx = visible_stems[RIGHT]->relative_coordinate (common, X_AXIS) - x0;
+ Interval x_span = robust_scm2interval (beam->get_property ("X-positions"),
+ Interval (0.0, 0.0));
+ Real x0 = x_span[LEFT];
+ Real dx = x_span.length ();
Real slope = dy && dx ? dy / dx : 0;
Direction d = get_grob_direction (stem);
+ (beam_count - 1) * beam_translation;
Real beam_y = stem_y - d * height_of_my_beams;
- Grob *common_y = rest->common_refpoint (beam, Y_AXIS);
-
Interval rest_extent = rest->extent (rest, Y_AXIS);
rest_extent.translate (offset + rest->get_parent (Y_AXIS)->relative_coordinate (common_y, Y_AXIS));
return scm_from_double (amount);
Grob *beam = unsmob_grob (stem->get_object ("beam"));
if (!beam
- || !Beam::normal_stem_count (beam))
+ || !Beam::normal_stem_count (beam)
+ || !is_direction (beam->get_property_data ("direction")))
return scm_from_double (amount);
Real ss = Staff_symbol_referencer::staff_space (me);
Grob *left;
Grob *right;
- if (idx == (vsize)-1 || my_stems.size () == 1)
+ if (idx == (vsize) - 1 || my_stems.size () == 1)
return scm_from_double (amount);
else if (idx == 0)
left = right = my_stems[1];
return scm_from_double (amount);
}
-
bool
Beam::is_knee (Grob *me)
{
" measured in staffspace. The @code{direction} property is"
" not user-serviceable. Use the @code{direction} property"
" of @code{Stem} instead.\n"
- "\n"
"The following properties may be set in the @code{details}"
" list.\n"
"\n"
"auto-knee-gap "
"beamed-stem-shorten "
"beaming "
+ "beam-segments "
"beam-thickness "
"break-overshoot "
"clip-edges "
"positions "
"quantized-positions "
"shorten "
+ "skip-quanting "
"stems "
+ "X-positions "
);
projects / lilypond.git / blobdiff