#include "beam.hh"
-#include "beaming.hh"
+#include "beaming-pattern.hh"
#include "directional-element-interface.hh"
+#include "main.hh"
#include "international.hh"
#include "interval-set.hh"
#include "item.hh"
#include "stem.hh"
#include "warn.hh"
-#if DEBUG_QUANTING
+#if DEBUG_BEAM_SCORING
#include "text-interface.hh" // debug output.
#include "font-interface.hh" // debug output.
#endif
+#include <map>
+
+
+Beam_stem_segment::Beam_stem_segment ()
+{
+ max_connect_ = 1000; // infinity
+ stem_ = 0;
+ width_ = 0.0;
+ stem_x_ = 0.0;
+ rank_ = 0;
+ stem_index_ = 0;
+ dir_ = CENTER;
+}
+
+Beam_segment::Beam_segment ()
+{
+ vertical_count_ = 0;
+}
+
void
Beam::add_stem (Grob *me, Grob *s)
{
}
-/* After pre-processing all directions should be set.
- Several post-processing routines (stem, slur, script) need stem/beam
- direction.
- Currenly, this means that beam has set all stem's directions.
- [Alternatively, stems could set its own directions, according to
- their beam, during 'final-pre-processing'.] */
MAKE_SCHEME_CALLBACK (Beam, calc_direction, 1);
SCM
Beam::calc_direction (SCM smob)
/* Beams with less than 2 two stems don't make much sense, but could happen
when you do
- [r8 c8 r8].
+ r8[ c8 r8]
- For a beam that only has one stem, we try to do some disappearance magic:
- we revert the flag, and move on to The Eternal Engraving Fields. */
+ */
- Direction d = CENTER;
+ Direction dir = CENTER;
int count = visible_stem_count (me);
if (count < 2)
{
extract_grob_set (me, "stems", stems);
- if (stems.size () == 1)
+ if (stems.size () == 0)
{
- me->warning (_ ("removing beam with less than two stems"));
-
- stems[0]->set_object ("beam", SCM_EOL);
+ me->warning (_ ("removing beam with no stems"));
me->suicide ();
- return SCM_UNSPECIFIED;
- }
- else if (stems.size () == 0)
- {
- me->suicide ();
return SCM_UNSPECIFIED;
}
else
/*
ugh: stems[0] case happens for chord tremolo.
*/
- d = to_dir ((stem ? stem : stems[0])->get_property ("default-direction"));
+ dir = to_dir ((stem ? stem : stems[0])->get_property ("default-direction"));
}
}
if (count >= 1)
{
- if (!d)
- d = get_default_dir (me);
+ if (!dir)
+ dir = get_default_dir (me);
consider_auto_knees (me);
}
- if (d)
+ if (dir)
{
- set_stem_directions (me, d);
+ set_stem_directions (me, dir);
}
- return scm_from_int (d);
+ return scm_from_int (dir);
}
return SCM_EOL;
}
-/*
- I really enjoy spaghetti, but spaghetti should be kept on a plate
- with a little garlic and olive oil. This is too much.
+bool
+operator <(Beam_stem_segment const &a,
+ Beam_stem_segment const &b)
+{
+ return a.rank_ < b.rank_;
+}
- rewrite-me
-*/
-MAKE_SCHEME_CALLBACK (Beam, print, 1);
-SCM
-Beam::print (SCM grob)
+typedef map<int, vector<Beam_stem_segment> > Position_stem_segments_map;
+
+vector<Beam_segment>
+Beam::get_beam_segments (Grob *me_grob, Grob **common)
{
- Spanner *me = unsmob_spanner (grob);
+ Spanner *me = dynamic_cast<Spanner*> (me_grob);
extract_grob_set (me, "stems", stems);
- Grob *xcommon = common_refpoint_of_array (stems, me, X_AXIS);
+ 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;
+
+ int gap_count = robust_scm2int (me->get_property ("gap-count"), 0);
+ Real gap_length = robust_scm2double (me->get_property ("gap"), 0.0);
+
+ Position_stem_segments_map stem_segments;
+ Real lt = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
+
+ Slice ranks;
+
+ for (vsize i = 0; i < stems.size (); i++)
+ {
+ Grob *stem = stems[i];
+ 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
+ {
+ for (SCM s = index_get_cell (beaming, d);
+ scm_is_pair (s); s = scm_cdr (s))
+ {
+ if (!scm_is_integer (scm_car (s)))
+ continue;
- xcommon = me->get_bound (LEFT)->common_refpoint (xcommon, X_AXIS);
- xcommon = me->get_bound (RIGHT)->common_refpoint (xcommon, X_AXIS);
+ int beam_rank = scm_to_int (scm_car (s));
+ ranks.add_point (beam_rank);
+ }
+
+ for (SCM s = index_get_cell (beaming, d);
+ scm_is_pair (s); s = scm_cdr (s))
+ {
+ if (!scm_is_integer (scm_car (s)))
+ continue;
+
+ int beam_rank = scm_to_int (scm_car (s));
+ Beam_stem_segment seg;
+ seg.stem_ = stem;
+ seg.stem_x_ = stem_x;
+ seg.rank_ = 2 * i + (d+1)/2;
+ seg.width_ = stem_width;
+ seg.stem_index_ = i;
+ seg.dir_ = d;
+ seg.max_connect_ = robust_scm2int (stem->get_property ("max-beam-connect"), 1000);
+
+ Direction stem_dir = get_grob_direction (stem);
+
+ seg.gapped_
+ = (stem_dir * beam_rank < (stem_dir * ranks[-stem_dir] + gap_count));
+ stem_segments[beam_rank].push_back (seg);
+ }
+ }
+ while (flip (&d) != LEFT);
+ }
+
+ Drul_array<Real> break_overshoot
+ = robust_scm2drul (me->get_property ("break-overshoot"),
+ Drul_array<Real> (-0.5, 0.0));
+
+ vector<Beam_segment> segments;
+ for (Position_stem_segments_map::const_iterator i (stem_segments.begin ());
+ i != stem_segments.end (); i++)
+ {
+ vector<Beam_stem_segment> segs = (*i).second;
+ vector_sort (segs, default_compare);
+
+ Beam_segment current;
+
+ int vertical_count = (*i).first;
+ for (vsize j = 0; j < segs.size (); j++)
+ {
+ /*
+ event_dir == LEFT: left edge of a beamsegment.
+ */
+ 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]
+ || 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_);
+
+ if (!event)
+ continue;
+
+ current.vertical_count_ = vertical_count;
+ current.horizontal_[event_dir] = segs[j].stem_x_;
+ if (segs[j].dir_ == event_dir)
+ {
+ if (on_bound[event_dir]
+ && me->get_bound (event_dir)->break_status_dir ())
+ {
+ current.horizontal_[event_dir]
+ = (me->get_bound (event_dir)->extent (commonx, X_AXIS)[RIGHT]
+ + event_dir * break_overshoot[event_dir]);
+ }
+ else
+ {
+ Real notehead_width =
+ 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);
+
+ current.horizontal_[event_dir] += event_dir * notehead_width;
+ }
+ }
+ else
+ {
+ current.horizontal_[event_dir] += event_dir * segs[j].width_/2;
+ if (segs[j].gapped_)
+ current.horizontal_[event_dir] -= event_dir * gap_length;
+ }
+
+ if (event_dir == RIGHT)
+ {
+ segments.push_back (current);
+ current = Beam_segment();
+ }
+ }
+ while (flip (&event_dir) != LEFT);
+ }
+
+ }
+
+ return segments;
+}
+
+MAKE_SCHEME_CALLBACK(Beam, print, 1);
+SCM
+Beam::print (SCM grob)
+{
+ Spanner *me = unsmob_spanner (grob);
+ Grob *commonx = 0;
+ vector<Beam_segment> segments = get_beam_segments (me, &commonx);
- Real x0, dx;
+ Interval span;
if (visible_stem_count (me))
{
- // ugh -> use commonx
- x0 = first_visible_stem (me)->relative_coordinate (xcommon, X_AXIS);
- dx = last_visible_stem (me)->relative_coordinate (xcommon, X_AXIS) - x0;
+ span[LEFT] = first_visible_stem (me)->relative_coordinate (commonx, X_AXIS);
+ span[RIGHT] = last_visible_stem (me)->relative_coordinate (commonx, X_AXIS);
}
else
{
- x0 = stems[0]->relative_coordinate (xcommon, X_AXIS);
- dx = stems.back ()->relative_coordinate (xcommon, X_AXIS) - x0;
+ 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");
- Drul_array<Real> pos;
+ Interval pos;
if (!is_number_pair (posns))
{
programming_error ("no beam positions?");
scale_drul (&pos, Staff_symbol_referencer::staff_space (me));
Real dy = pos[RIGHT] - pos[LEFT];
- Real slope = (dy && dx) ? dy / dx : 0;
+ Real slope = (dy && span.length ()) ? dy / span.length () : 0;
Real thick = get_thickness (me);
- Real bdy = get_beam_translation (me);
-
- SCM last_beaming = SCM_EOL;
- Real last_xposn = -1;
- Real last_stem_width = -1;
-
- Real gap_length = robust_scm2double (me->get_property ("gap"), 0.0);
+ Real beam_dy = get_beam_translation (me);
+ Direction feather_dir = to_dir (me->get_property ("grow-direction"));
+
Stencil the_beam;
- Real lt = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
-
- for (vsize i = 0; i <= stems.size (); i++)
+ for (vsize i = 0; i < segments.size (); i ++)
{
- Grob *stem = (i < stems.size ()) ? stems[i] : 0;
-
- SCM this_beaming = stem ? stem->get_property ("beaming") : SCM_EOL;
- Real xposn = stem ? stem->relative_coordinate (xcommon, X_AXIS) : 0.0;
- Real stem_width = stem ? robust_scm2double (stem->get_property ("thickness"), 1.0) * lt : 0;
- Direction stem_dir = stem ? to_dir (stem->get_property ("direction")) : CENTER;
- /*
- We do the space left of ST, with lfliebertjes pointing to the
- right from the left stem, and rfliebertjes pointing left from
- right stem.
- */
- SCM left = (i > 0) ? scm_cdr (last_beaming) : SCM_EOL;
- SCM right = stem ? scm_car (this_beaming) : SCM_EOL;
-
- vector<int> full_beams;
- vector<int> lfliebertjes;
- vector<int> rfliebertjes;
-
- for (SCM s = left;
- scm_is_pair (s); s = scm_cdr (s))
- {
- int b = scm_to_int (scm_car (s));
- if (scm_c_memq (scm_car (s), right) != SCM_BOOL_F)
- full_beams.push_back (b);
- else
- lfliebertjes.push_back (b);
- }
- for (SCM s = right;
- scm_is_pair (s); s = scm_cdr (s))
- {
- int b = scm_to_int (scm_car (s));
- if (scm_c_memq (scm_car (s), left) == SCM_BOOL_F)
- rfliebertjes.push_back (b);
- }
-
- Drul_array<Real> break_overshoot
- = robust_scm2drul (me->get_property ("break-overshoot"),
- Drul_array<Real> (-0.5, 0.0));
-
- Real w = (i > 0 && stem)
- ? (xposn - last_xposn)
- : break_overshoot[ (i == 0) ? LEFT : RIGHT];
-
- Real stem_offset = 0.0;
- if (i > 0)
- {
- w += last_stem_width / 2;
- stem_offset = -last_stem_width / 2;
- }
-
- if (stem)
- w += stem_width / 2;
-
- Real blot = me->layout ()->get_dimension (ly_symbol2scm ("blot-diameter"));
- Stencil whole = Lookup::beam (slope, w, thick, blot);
- Stencil gapped;
-
- int gap_count = 0;
- if (scm_is_number (me->get_property ("gap-count")))
- {
- gap_count = scm_to_int (me->get_property ("gap-count"));
- gapped = Lookup::beam (slope, w - 2 * gap_length, thick, blot);
-
- vector_sort (full_beams, default_compare);
- if (stem_dir == UP)
- reverse (full_beams);
- }
-
- int k = 0;
- for (vsize j = full_beams.size (); j--;)
- {
- Stencil b (whole);
-
- if (k++ < gap_count)
- {
- b = gapped;
- b.translate_axis (gap_length, X_AXIS);
- }
- b.translate_axis (last_xposn - x0 + stem_offset, X_AXIS);
- b.translate_axis (slope * (last_xposn - x0) + bdy * full_beams[j], Y_AXIS);
-
- the_beam.add_stencil (b);
- }
-
- if (lfliebertjes.size () || rfliebertjes.size ())
+ Real local_slope = slope;
+ if (feather_dir)
{
- Real nw_f;
-
- if (stem)
- {
- int t = Stem::duration_log (stem);
- // ugh. hardcoded.
- if (t == 1)
- nw_f = 1.98;
- else
- nw_f = 1.32;
- }
- else
- nw_f = break_overshoot[RIGHT] / 2;
-
- /* Half beam should be one note-width,
- but let's make sure two half-beams never touch */
- Real lw = nw_f;
- Real rw = nw_f;
- if (i > 0)
- rw = min (nw_f, ((xposn - last_xposn) / 2));
- else
- {
- if (me->get_bound (LEFT)->break_status_dir ())
- rw = xposn - me->get_bound (LEFT)->extent (xcommon, X_AXIS)[RIGHT]
- + break_overshoot[LEFT];
- else
- rw = 1.0; // ugh.
- }
-
- if (stem)
- lw = min (nw_f, ((xposn - last_xposn) / 2));
- else
- {
- lw = me->get_bound (RIGHT)->relative_coordinate (xcommon, X_AXIS)
- - last_xposn
- + break_overshoot[RIGHT];
- }
- rw += stem_width / 2;
- lw += last_stem_width / 2;
-
- Stencil rhalf = Lookup::beam (slope, rw, thick, blot);
- Stencil lhalf = Lookup::beam (slope, lw, thick, blot);
- for (vsize j = lfliebertjes.size (); j--;)
- {
- Stencil b (lhalf);
- b.translate_axis (last_xposn - x0 - last_stem_width /2,
- X_AXIS);
- b.translate_axis (slope * (last_xposn - x0)
- + bdy * lfliebertjes[j],
- Y_AXIS);
- the_beam.add_stencil (b);
- }
- for (vsize j = rfliebertjes.size (); j--;)
- {
- Stencil b (rhalf);
- b.translate_axis (xposn - x0 - rw + stem_width / 2, X_AXIS);
- b.translate_axis (slope * (xposn - x0 - rw)
- + bdy * rfliebertjes[j], Y_AXIS);
- the_beam.add_stencil (b);
- }
+ local_slope += feather_dir * segments[i].vertical_count_ * beam_dy / span.length ();
}
+
+ Stencil b = Lookup::beam (local_slope, segments[i].horizontal_.length (), thick, blot);
- last_xposn = xposn;
- last_stem_width = stem_width;
- last_beaming = this_beaming;
+ b.translate_axis (segments[i].horizontal_[LEFT], X_AXIS);
+
+ b.translate_axis (local_slope
+ * (segments[i].horizontal_[LEFT] - span.linear_combination (feather_dir))
+ + pos.linear_combination (feather_dir)
+ + beam_dy * segments[i].vertical_count_, Y_AXIS);
+ the_beam.add_stencil (b);
}
-
- the_beam.translate_axis (x0 - me->relative_coordinate (xcommon, X_AXIS),
- X_AXIS);
- the_beam.translate_axis (pos[LEFT], Y_AXIS);
-
-#if (DEBUG_QUANTING)
+
+#if (DEBUG_BEAM_SCORING)
SCM quant_score = me->get_property ("quant-score");
- SCM debug = me->layout ()->lookup_variable (ly_symbol2scm ("debug-beam-quanting"));
+ SCM debug = me->layout ()->lookup_variable (ly_symbol2scm ("debug-beam-scoring"));
if (to_boolean (debug) && scm_is_string (quant_score))
{
+ extract_grob_set (me, "stems", stems);
/*
This code prints the demerits for each beam. Perhaps this
}
#endif
+ the_beam.translate_axis (-me->relative_coordinate (commonx, X_AXIS), X_AXIS);
return the_beam.smobbed_copy ();
}
-
+
Direction
Beam::get_default_dir (Grob *me)
{
- Drul_array<int> total;
- total[UP] = total[DOWN] = 0;
- Drul_array<int> count;
- count[UP] = count[DOWN] = 0;
-
extract_grob_set (me, "stems", stems);
+ Drul_array<Real> extremes (0.0, 0.0);
+ for (iterof (s, stems); s != stems.end (); s++)
+ {
+ Interval positions = Stem::head_positions (*s);
+ Direction d = DOWN;
+ do
+ {
+ if (sign (positions[d]) == d)
+ extremes[d] = d * max (d * positions[d], d * extremes[d]);
+ }
+ while (flip (&d) != DOWN);
+ }
+
+ Drul_array<int> total (0, 0);
+ Drul_array<int> count (0, 0);
+
+ bool force_dir = false;
for (vsize i = 0; i < stems.size (); i++)
{
Grob *s = stems[i];
Direction stem_dir = CENTER;
SCM stem_dir_scm = s->get_property_data (ly_symbol2scm ("direction"));
if (is_direction (stem_dir_scm))
- stem_dir = to_dir (stem_dir_scm);
+ {
+ stem_dir = to_dir (stem_dir_scm);
+ force_dir = true;
+ }
else
stem_dir = to_dir (s->get_property ("default-direction"));
}
}
+
+ if (!force_dir)
+ {
+ if (abs (extremes[UP]) > -extremes[DOWN])
+ return DOWN;
+ else if (extremes[UP] < -extremes[DOWN])
+ return UP;
+ }
+
Direction dir = CENTER;
Direction d = CENTER;
if ((d = (Direction) sign (count[UP] - count[DOWN])))
Interval pos (0,0);
if (count < 1)
return ly_interval2scm (pos);
-
+
vector<Real> x_posns;
extract_grob_set (me, "stems", stems);
Grob *commonx = common_refpoint_of_array (stems, me, X_AXIS);
Grob *lvs = last_visible_stem (me);
Interval ideal (Stem::get_stem_info (fvs).ideal_y_
- + fvs->relative_coordinate (commony, Y_AXIS) -my_y,
+ + fvs->relative_coordinate (commony, Y_AXIS) - my_y,
Stem::get_stem_info (lvs).ideal_y_
+ lvs->relative_coordinate (commony, Y_AXIS) - my_y);
/* Return the Y position of the stem-end, given the Y-left, Y-right
in POS for stem S. This Y position is relative to S. */
Real
-Beam::calc_stem_y (Grob *me, Grob *s, Grob ** common,
+Beam::calc_stem_y (Grob *me, Grob *stem, Grob **common,
Real xl, Real xr,
Drul_array<Real> pos, bool french)
{
Real beam_translation = get_beam_translation (me);
- Real r = s->relative_coordinate (common[X_AXIS], X_AXIS) - xl;
+ Real r = stem->relative_coordinate (common[X_AXIS], X_AXIS) - xl;
Real dy = pos[RIGHT] - pos[LEFT];
Real dx = xr - xl;
Real stem_y_beam0 = (dy && dx
* dy
: 0) + pos[LEFT];
- Direction my_dir = get_grob_direction (s);
- SCM beaming = s->get_property ("beaming");
+ Direction my_dir = get_grob_direction (stem);
+ SCM beaming = stem->get_property ("beaming");
Real stem_y = stem_y_beam0;
if (french)
}
else
{
- Slice bm = Stem::beam_multiplicity (s);
+ Slice bm = Stem::beam_multiplicity (stem);
if (!bm.is_empty ())
stem_y += bm[my_dir] * beam_translation;
}
Real id = me->relative_coordinate (common[Y_AXIS], Y_AXIS)
- - s->relative_coordinate (common[Y_AXIS], Y_AXIS);
+ - stem->relative_coordinate (common[Y_AXIS], Y_AXIS);
return stem_y + id;
}
{
Grob *me = unsmob_grob (smob);
- /* trigger callback. */
+ /* trigger callbacks. */
(void) me->get_property ("direction");
+ (void) me->get_property ("beaming");
SCM posns = me->get_property ("positions");
bool gap = false;
Real thick = 0.0;
- if (scm_is_number (me->get_property ("gap-count"))
- && scm_to_int (me->get_property ("gap-count")))
+ if (robust_scm2int (me->get_property ("gap-count"), 0))
{
gap = true;
thick = get_thickness (me);
}
void
-Beam::set_beaming (Grob *me, Beaming_info_list const *beaming)
+Beam::set_beaming (Grob *me, Beaming_pattern const *beaming)
{
extract_grob_set (me, "stems", stems);
if (beaming_prop == SCM_EOL
|| index_get_cell (beaming_prop, d) == SCM_EOL)
{
- int b = beaming->infos_.at (i).beams_i_drul_[d];
+ int count = beaming->beamlet_count (i, d);
if (i > 0
&& i < stems.size () -1
&& Stem::is_invisible (stem))
- b = min (b, beaming->infos_.at (i).beams_i_drul_[-d]);
+ count = min (count, beaming->beamlet_count (i,-d));
+
+ if ( ((i == 0 && d == LEFT)
+ || (i == stems.size ()-1 && d == RIGHT))
+ && stems.size () > 1
+ && to_boolean (me->get_property ("clip-edges")))
+ count = 0;
- Stem::set_beaming (stem, b, d);
+ Stem::set_beaming (stem, count, d);
}
}
while (flip (&d) != LEFT);
"beamed-stem-shorten "
"beaming "
"break-overshoot "
- "chord-tremolo "
+ "clip-edges "
"concaveness "
"damping "
"details "
"direction "
"gap "
"gap-count "
+ "grow-direction "
"inspect-quants "
"knee "
"length-fraction "
projects / lilypond.git / blobdiff