source file of the GNU LilyPond music typesetter
- (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "staff-symbol-referencer.hh"
#include "stem.hh"
#include "warn.hh"
+#include "grob-array.hh"
#if DEBUG_BEAM_SCORING
#include "text-interface.hh" // debug output.
return m;
}
+MAKE_SCHEME_CALLBACK (Beam, calc_normal_stems, 1);
+SCM
+Beam::calc_normal_stems (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+
+ extract_grob_set (me, "stems", stems);
+ SCM val = Grob_array::make_array ();
+ Grob_array *ga = unsmob_grob_array (val);
+ for (vsize i = 0; i < stems.size (); i++)
+ if (Stem::is_normal_stem (stems[i]))
+ ga->add (stems[i]);
+
+ return val;
+}
MAKE_SCHEME_CALLBACK (Beam, calc_direction, 1);
SCM
Direction dir = CENTER;
- int count = visible_stem_count (me);
+ int count = normal_stem_count (me);
if (count < 2)
{
extract_grob_set (me, "stems", stems);
}
else
{
- Grob *stem = first_visible_stem (me);
+ Grob *stem = first_normal_stem (me);
/*
ugh: stems[0] case happens for chord tremolo.
}
else
{
+ /*
+ FIXME: what's this for?
+ */
SCM s = scm_cdr (this_beaming);
for (; scm_is_pair (s); s = scm_cdr (s))
{
{
/* ugh, this has a side-effect that we need to ensure that
Stem #'beaming is correct */
- (void) me_grob->get_property ("quantized-positions");
+ (void) me_grob->get_property ("beaming");
Spanner *me = dynamic_cast<Spanner*> (me_grob);
Direction event_dir = LEFT;
do
{
- Drul_array<bool> on_bound (j == 0 && event_dir==LEFT,
- j == segs.size() - 1 && event_dir==RIGHT);
- Drul_array<bool> inside (j > 0, j < segs.size()-1);
- bool event = on_bound[event_dir]
+ bool on_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 () ;
+
+ bool event = on_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_);
current.horizontal_[event_dir] = segs[j].stem_x_;
if (segs[j].dir_ == event_dir)
{
- if (on_bound[event_dir]
+ if (on_bound
&& me->get_bound (event_dir)->break_status_dir ())
{
current.horizontal_[event_dir]
Stem::duration_log (segs[j].stem_) == 1
? 1.98
: 1.32; // URG.
-
- if (inside[event_dir])
- notehead_width = min (notehead_width,
- fabs (segs[j+ event_dir].stem_x_
- - segs[j].stem_x_)/2);
-
+
+
+ if (inside_stem)
+ {
+ Grob *neighbor_stem = stems[segs[j].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);
+ }
current.horizontal_[event_dir] += event_dir * notehead_width;
}
}
vector<Beam_segment> segments = get_beam_segments (me, &commonx);
Interval span;
- if (visible_stem_count (me))
+ if (normal_stem_count (me))
{
- span[LEFT] = first_visible_stem (me)->relative_coordinate (commonx, X_AXIS);
- span[RIGHT] = last_visible_stem (me)->relative_coordinate (commonx, X_AXIS);
+ span[LEFT] = first_normal_stem (me)->relative_coordinate (commonx, X_AXIS);
+ span[RIGHT] = last_normal_stem (me)->relative_coordinate (commonx, X_AXIS);
}
else
{
(me->layout ()->self_scm (), properties, quant_score));
if (!score.is_empty ())
- the_beam.add_at_edge (Y_AXIS, stem_dir, score, 1.0, 0);
+ the_beam.add_at_edge (Y_AXIS, stem_dir, score, 1.0);
}
#endif
gaps.set_full ();
- extract_grob_set (me, "stems", stems);
+ extract_grob_set (me, "normal-stems", stems);
Grob *common = common_refpoint_of_array (stems, me, Y_AXIS);
Real staff_space = Staff_symbol_referencer::staff_space (me);
for (vsize i = 0; i < stems.size (); i++)
{
Grob *stem = stems[i];
- if (Stem::is_invisible (stem))
- continue;
Interval head_extents = Stem::head_positions (stem);
if (!head_extents.is_empty ())
sets stem directions, a constant shift does not have an
influence.
*/
- head_extents += stem->relative_coordinate (common, Y_AXIS);
+ head_extents += stem->pure_relative_y_coordinate (common, 0, INT_MAX);
if (to_dir (stem->get_property_data ("direction")))
{
for (vsize i = 0; i < stems.size (); i++)
{
Grob *stem = stems[i];
- if (Stem::is_invisible (stem))
- continue;
-
Interval head_extents = head_extents_array[j++];
Direction d = (head_extents.center () < max_gap.center ())
return scm_from_int (0);
Real forced_fraction = 1.0 * forced_stem_count (me)
- / visible_stem_count (me);
+ / normal_stem_count (me);
int beam_count = get_beam_count (me);
Grob *me = unsmob_grob (smob);
- int count = visible_stem_count (me);
+ int count = normal_stem_count (me);
Interval pos (0,0);
if (count < 1)
return ly_interval2scm (pos);
vector<Real> x_posns;
- extract_grob_set (me, "stems", stems);
+ extract_grob_set (me, "normal-stems", stems);
Grob *commonx = common_refpoint_of_array (stems, me, X_AXIS);
Grob *commony = common_refpoint_of_array (stems, me, Y_AXIS);
Real my_y = me->relative_coordinate (commony, Y_AXIS);
- Grob *fvs = first_visible_stem (me);
- Grob *lvs = last_visible_stem (me);
+ Grob *fvs = first_normal_stem (me);
+ Grob *lvs = last_normal_stem (me);
Interval ideal (Stem::get_stem_info (fvs).ideal_y_
+ fvs->relative_coordinate (commony, Y_AXIS) - my_y,
Stem::get_stem_info (lvs).ideal_y_
+ lvs->relative_coordinate (commony, Y_AXIS) - my_y);
- Real x0 = first_visible_stem (me)->relative_coordinate (commonx, X_AXIS);
+ Real x0 = first_normal_stem (me)->relative_coordinate (commonx, X_AXIS);
for (vsize i = 0; i < stems.size (); i++)
{
Grob *s = stems[i];
Real x = s->relative_coordinate (commonx, X_AXIS) - x0;
x_posns.push_back (x);
}
- Real dx = last_visible_stem (me)->relative_coordinate (commonx, X_AXIS) - x0;
+ Real dx = last_normal_stem (me)->relative_coordinate (commonx, X_AXIS) - x0;
Real y = 0;
Real slope = 0;
Real ldy = 0.0;
if (!ideal.delta ())
{
- Interval chord (Stem::chord_start_y (first_visible_stem (me)),
- Stem::chord_start_y (last_visible_stem (me)));
+ Interval chord (Stem::chord_start_y (stems[0]),
+ Stem::chord_start_y (stems.back ()));
/* Simple beams (2 stems) on middle line should be allowed to be
slightly sloped.
for (vsize i = 0; i < stems.size (); i++)
{
Grob *s = stems[i];
- if (Stem::is_invisible (s))
- continue;
ideals.push_back (Offset (x_posns[i],
Stem::get_stem_info (s).ideal_y_
+ s->relative_coordinate (commony, Y_AXIS)
Grob *commonx = common_refpoint_of_array (stems, me, X_AXIS);
Grob *commony = common_refpoint_of_array (stems, me, Y_AXIS);
- Grob *fvs = first_visible_stem (me);
+ Grob *fvs = first_normal_stem (me);
if (!fvs)
return posns;
x_posns.push_back (x);
}
- Grob *lvs = last_visible_stem (me);
+ Grob *lvs = last_normal_stem (me);
if (!lvs)
return posns;
Real dx = lvs->relative_coordinate (commonx, X_AXIS) - x0;
Drul_array<Real> pos = ly_scm2interval (posns);
-
scale_drul (&pos, Staff_symbol_referencer::staff_space (me));
Grob *me = unsmob_grob (smob);
Drul_array<Real> pos = ly_scm2interval (posns);
- if (visible_stem_count (me) <= 1)
+ if (normal_stem_count (me) <= 1)
return posns;
Real dy = pos[RIGHT] - pos[LEFT];
- Grob *fvs = first_visible_stem (me);
- Grob *lvs = last_visible_stem (me);
+ Grob *fvs = first_normal_stem (me);
+ Grob *lvs = last_normal_stem (me);
Grob *commonx = fvs->common_refpoint (lvs, X_AXIS);
- Real dx = last_visible_stem (me)->relative_coordinate (commonx, X_AXIS)
- - first_visible_stem (me)->relative_coordinate (commonx, X_AXIS);
+ Real dx = last_normal_stem (me)->relative_coordinate (commonx, X_AXIS)
+ - first_normal_stem (me)->relative_coordinate (commonx, X_AXIS);
Real slope = dy && dx ? dy / dx : 0;
thick = get_thickness (me);
}
- Grob *fvs = first_visible_stem (me);
- Grob *lvs = last_visible_stem (me);
+ 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;
{
int count = beaming->beamlet_count (i, d);
if (i > 0
- && i < stems.size () -1
+ && i + 1 < stems.size ()
&& Stem::is_invisible (stem))
count = min (count, beaming->beamlet_count (i,-d));
int
Beam::forced_stem_count (Grob *me)
{
- extract_grob_set (me, "stems", stems);
+ extract_grob_set (me, "normal-stems", stems);
int f = 0;
for (vsize i = 0; i < stems.size (); i++)
{
Grob *s = stems[i];
- if (Stem::is_invisible (s))
- continue;
-
/* I can imagine counting those boundaries as a half forced stem,
but let's count them full for now. */
Direction defdir = to_dir (s->get_property ("default-direction"));
}
int
-Beam::visible_stem_count (Grob *me)
+Beam::normal_stem_count (Grob *me)
{
- extract_grob_set (me, "stems", stems);
- int c = 0;
- for (vsize i = stems.size (); i--;)
- {
- if (!Stem::is_invisible (stems[i]))
- c++;
- }
- return c;
+ extract_grob_set (me, "normal-stems", stems);
+ return stems.size ();
}
Grob *
-Beam::first_visible_stem (Grob *me)
+Beam::first_normal_stem (Grob *me)
{
- extract_grob_set (me, "stems", stems);
-
- for (vsize i = 0; i < stems.size (); i++)
- {
- if (!Stem::is_invisible (stems[i]))
- return stems[i];
- }
- return 0;
+ extract_grob_set (me, "normal-stems", stems);
+ return stems.size () ? stems[0] : 0;
}
Grob *
-Beam::last_visible_stem (Grob *me)
+Beam::last_normal_stem (Grob *me)
{
- extract_grob_set (me, "stems", stems);
-
- for (vsize i = stems.size (); i--;)
- {
- if (!Stem::is_invisible (stems[i]))
- return stems[i];
- }
- return 0;
+ extract_grob_set (me, "normal-stems", stems);
+ return stems.size () ? stems.back () : 0;
}
/*
rest -> stem -> beam -> interpolate_y_position ()
*/
-MAKE_SCHEME_CALLBACK_WITH_OPTARGS (Beam, rest_collision_callback, 2, 1);
+MAKE_SCHEME_CALLBACK_WITH_OPTARGS (Beam, rest_collision_callback, 2, 1, "");
SCM
Beam::rest_collision_callback (SCM smob, SCM prev_offset)
{
Grob *beam = unsmob_grob (stem->get_object ("beam"));
if (!beam
|| !Beam::has_interface (beam)
- || !Beam::visible_stem_count (beam))
+ || !Beam::normal_stem_count (beam))
return scm_from_double (0.0);
- Drul_array<Real> pos (0, 0);
- SCM s = beam->get_property ("positions");
- if (scm_is_pair (s) && scm_is_number (scm_car (s)))
- pos = ly_scm2interval (s);
- else
- programming_error ("positions property should always be pair of numbers.");
+ Drul_array<Real> pos (robust_scm2drul (beam->get_property ("positions"),
+ Drul_array<Real> (0,0)));
Real staff_space = Staff_symbol_referencer::staff_space (rest);
Real dy = pos[RIGHT] - pos[LEFT];
- Drul_array<Grob*> visible_stems (first_visible_stem (beam),
- last_visible_stem (beam));
+ 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 beam_y = stem_y - d * height_of_my_beams;
Grob *common_y = rest->common_refpoint (beam, Y_AXIS);
+
+ /*
+ TODO: this is dubious, because this call needs the info we're
+ computing right now.
+ */
Interval rest_extent = rest->extent (common_y, Y_AXIS);
rest_extent.translate (offset);
= staff_space * (robust_scm2double (stem->get_property ("stemlet-length"), 0.0)
+ robust_scm2double (rest->get_property ("minimum-distance"), 0.0));
- Real shift = d * min (((beam_y - d * minimum_distance) - rest_dim) * d, 0.0);
+ Real shift = d * min (d * (beam_y - d * minimum_distance - rest_dim), 0.0);
shift /= staff_space;
Real rad = Staff_symbol_referencer::line_count (rest) * staff_space / 2;
< rad)
shift = ceil (fabs (shift)) * sign (shift);
- return scm_from_double (staff_space * shift);
+ return scm_from_double (offset + staff_space * shift);
}
bool
return knee;
}
+bool
+Beam::is_cross_staff (Grob *me)
+{
+ extract_grob_set (me, "stems", stems);
+ Grob *staff_symbol = Staff_symbol_referencer::get_staff_symbol (me);
+ for (vsize i = 0; i < stems.size (); i++)
+ if (Staff_symbol_referencer::get_staff_symbol (stems[i]) != staff_symbol)
+ return true;
+ return false;
+}
+
+MAKE_SCHEME_CALLBACK (Beam, cross_staff, 1)
+SCM
+Beam::cross_staff (SCM smob)
+{
+ return scm_from_bool (is_cross_staff (unsmob_grob (smob)));
+}
+
int
Beam::get_direction_beam_count (Grob *me, Direction d)
{
"length-fraction "
"least-squares-dy "
"neutral-direction "
+ "normal-stems "
"positions "
"quant-score "
"quantized-positions "
projects / lilypond.git / blobdiff