-/*
- accidental-placement.cc -- implement Accidental_placement
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 2002--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- source file of the GNU LilyPond music typesetter
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- (c) 2002--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <math.h>
+#include "accidental-placement.hh"
-#include "libc-extension.hh" // isinf
+#include "accidental-interface.hh"
#include "item.hh"
-#include "skyline.hh"
#include "music.hh"
-#include "pitch.hh"
-#include "warn.hh"
-#include "accidental-placement.hh"
-#include "note-column.hh"
-#include "group-interface.hh"
#include "note-collision.hh"
-#include "accidental-interface.hh"
+#include "note-column.hh"
+#include "pointer-group-interface.hh"
+#include "rhythmic-head.hh"
+#include "skyline.hh"
+#include "skyline-pair.hh"
+#include "stream-event.hh"
+#include "warn.hh"
-MAKE_SCHEME_CALLBACK (Accidental_placement,alignment_callback, 2);
-SCM
-Accidental_placement::alignment_callback (SCM s, SCM )
+static Pitch *
+accidental_pitch (Grob *acc)
{
- Grob * me =unsmob_grob (s);
+ SCM cause = acc->get_parent (Y_AXIS)->get_property ("cause");
- Grob * par = me->get_parent (X_AXIS);
- if (!to_boolean (par->get_property ("positioning-done")))
+ Stream_event *mcause = Stream_event::unsmob (cause);
+ if (!mcause)
{
- par->set_property ("positioning-done", SCM_BOOL_T);
- position_accidentals (par);
+ programming_error ("note head has no event cause");
+ return 0;
}
- return scm_int2num (0);
+ return Pitch::unsmob (mcause->get_property ("pitch"));
}
-
void
-Accidental_placement::add_accidental (Grob* me, Grob* a)
+Accidental_placement::add_accidental (Grob *me, Grob *a, bool stagger, long context_hash)
{
- a->set_parent (me, X_AXIS);
- a->add_offset_callback (alignment_callback_proc, X_AXIS);
- SCM cause = a->get_parent (Y_AXIS)->get_property ("cause");
-
- Music *mcause =unsmob_music (cause);
- if (!mcause)
- {
- programming_error ("Note head has no music cause!");
- return;
- }
+ Pitch *p = accidental_pitch (a);
+ if (!p)
+ return;
- Pitch *p= unsmob_pitch (mcause->get_property ("pitch"));
-
- int n = p->get_notename ();
+ a->set_parent (me, X_AXIS);
+ a->set_property ("X-offset", Grob::x_parent_positioning_proc);
+ long n = p->get_notename ();
- SCM accs = me->get_property ("accidental-grobs");
- SCM key = scm_int2num (n);
- SCM entry = scm_assq (key, accs);
+ SCM accs = me->get_object ("accidental-grobs");
+ SCM key = scm_cons (scm_from_int (n), scm_from_long (stagger ? context_hash : 1));
+ // assoc because we're dealing with pairs
+ SCM entry = scm_assoc (key, accs);
if (entry == SCM_BOOL_F)
- {
- entry = SCM_EOL;
- }
+ entry = SCM_EOL;
else
- entry = ly_cdr (entry);
+ entry = scm_cdr (entry);
entry = scm_cons (a->self_scm (), entry);
- accs = scm_assq_set_x (accs, key, entry);
+ accs = scm_assoc_set_x (accs, key, entry);
- me->set_property ("accidental-grobs", accs);
+ me->set_object ("accidental-grobs", accs);
}
/*
Split into break reminders.
- */
+*/
void
-Accidental_placement::split_accidentals (Grob * accs,
- Link_array<Grob> *break_reminder,
- Link_array<Grob> *real_acc)
+Accidental_placement::split_accidentals (Grob *accs,
+ vector<Grob *> *break_reminder,
+ vector<Grob *> *real_acc)
{
- for (SCM acs =accs->get_property ("accidental-grobs"); is_pair (acs);
- acs =ly_cdr (acs))
- for (SCM s = ly_cdar (acs); is_pair (s); s = ly_cdr (s))
+ for (SCM acs = accs->get_object ("accidental-grobs"); scm_is_pair (acs);
+ acs = scm_cdr (acs))
+ for (SCM s = scm_cdar (acs); scm_is_pair (s); s = scm_cdr (s))
{
- Grob *a = unsmob_grob (ly_car (s));
+ Grob *a = Grob::unsmob (scm_car (s));
- if (unsmob_grob (a->get_property ("tie")))
- break_reminder->push (a);
- else
- real_acc->push (a);
+ if (Grob::is_smob (a->get_object ("tie"))
+ && !to_boolean (a->get_property ("forced")))
+ break_reminder->push_back (a);
+ else
+ real_acc->push_back (a);
}
}
-/*
- Accidentals are special, because they appear and disappear after
- ties at will.
-*/
-Interval
-Accidental_placement::get_relevant_accidental_extent (Grob *me,
- Item *item_col,
- Grob *left_object)
+vector<Grob *>
+Accidental_placement::get_relevant_accidentals (vector<Grob *> const &elts, Grob *left)
{
- Link_array<Grob> br, ra;
- Link_array<Grob> *which = 0;
+ vector<Grob *> br;
+ vector<Grob *> ra;
+ vector<Grob *> ret;
+ bool right = dynamic_cast<Item *> (left)->break_status_dir () == RIGHT;
- Accidental_placement::split_accidentals (me, &br, &ra);
- br.concat (ra);
-
- if (dynamic_cast<Item*>(left_object)->break_status_dir () == RIGHT)
- which = & br;
- else
- which = & ra;
-
- Interval extent;
- for (int i = 0; i < which->size (); i++)
+ for (vsize i = 0; i < elts.size (); i++)
{
- extent.unite (which->elem (i)->extent (item_col, X_AXIS));
- }
+ split_accidentals (elts[i], &br, &ra);
- if (!extent.is_empty ())
- {
- Real p = robust_scm2double (me->get_property ("left-padding"), 0.2);
- extent[LEFT] -= p;
+ ret.insert (ret.end (), ra.begin (), ra.end ());
+
+ if (right)
+ ret.insert (ret.end (), br.begin (), br.end ());
}
-
- return extent;
+ return ret;
}
-
-
struct Accidental_placement_entry
{
- Array<Skyline_entry> left_skyline_;
- Array<Skyline_entry> right_skyline_;
- Interval vertical_extent_;
- Array<Box> extents_;
- Link_array<Grob> grobs_;
- Real offset_;
- int notename_;
- Accidental_placement_entry ()
- {
- offset_ =0.0;
- notename_ = -1;
- }
+ Skyline_pair horizontal_skylines_;
+ vector<Grob *> grobs_;
};
-static Interval all_accidental_vertical_extent;
-Real ape_priority (Accidental_placement_entry const * a)
+Real ape_priority (Accidental_placement_entry const *a)
{
- return a->vertical_extent_[UP];
+ // right is up because we're horizontal
+ return a->horizontal_skylines_.right ();
}
-
-
-int ape_compare (Accidental_placement_entry *const &a,
- Accidental_placement_entry *const &b)
+bool ape_less (Accidental_placement_entry *const &a,
+ Accidental_placement_entry *const &b)
{
- return sign (ape_priority (a) - ape_priority (b));
-}
+ vsize size_a = a->grobs_.size ();
+ vsize size_b = b->grobs_.size ();
+ if (size_a != size_b)
+ return size_b < size_a;
-int ape_rcompare (Accidental_placement_entry *const &a,
- Accidental_placement_entry *const &b)
-{
- return -sign (ape_priority (a) - ape_priority (b));
+ return ape_priority (a) < ape_priority (b);
}
-
/*
+ This function provides a method for sorting accidentals that belong to the
+ same note. The accidentals that this function considers to be "smallest"
+ will be placed to the left of the "larger" accidentals.
-TODO: should favor
-
- b
- b
+ Naturals are the largest (so that they don't get confused with cancellation
+ naturals); apart from that, we order according to the alteration (so
+ double-flats are the smallest).
-placement
-
+ Precondition: the accidentals are attached to NoteHeads of the same note
+ name -- the octaves, however, may be different.
*/
-void
-stagger_apes (Link_array<Accidental_placement_entry> *apes)
+static bool
+acc_less (Grob *const &a, Grob *const &b)
{
- Link_array<Accidental_placement_entry> asc = *apes;
-
+ Pitch *p = accidental_pitch (a);
+ Pitch *q = accidental_pitch (b);
- asc.sort (&ape_compare);
-
- apes->clear ();
-
- int i =0;
- int parity = 1;
- while (i < asc.size ())
+ if (!p || !q)
{
- Accidental_placement_entry * a = 0;
- if (parity)
- a = asc.pop ();
- else
- a = asc[i++];
-
- apes->push (a);
- parity = !parity;
+ programming_error ("these accidentals do not have a pitch");
+ return false;
}
- apes->reverse ();
-}
+ if (p->get_octave () != q->get_octave ())
+ return p->get_octave () < q->get_octave ();
-
+ if (p->get_alteration () == Rational (0))
+ return false;
+ if (q->get_alteration () == Rational (0))
+ return true;
-/*
-
- This routine computes placements of accidentals. During
- add_accidental (), accidentals are already grouped by note, so that
- octaves are placed above each other; they form columns. Then the
- columns are sorted: the biggest columns go closest to the note.
- Then the columns are spaced as closely as possible (using skyline
- spacing).
-
-
- TODO: more advanced placement. Typically, the accs should be placed
- to form a C shape, like this
-
-
- ##
- b b
- # #
- b
- b b
+ return p->get_alteration () < q->get_alteration ();
+}
- The naturals should be left of the C as well; they should
- be separate accs.
+/*
+ TODO: should favor
- Note that this placement problem looks NP hard, so we just use a
- simple strategy, not an optimal choice.
+ * b
+ * b
+ placement
*/
+void
+stagger_apes (vector<Accidental_placement_entry *> *apes)
+{
+ vector<Accidental_placement_entry *> asc = *apes;
+
+ vector_sort (asc, &ape_less);
+ // we do the staggering below based on size
+ // this ensures that if a placement has 4 entries, it will
+ // always be closer to the NoteColumn than a placement with 1
+ // this allows accidentals to be on-average closer to notes
+ // while still preserving octave alignment
+ vector<vector<Accidental_placement_entry *> > ascs;
+
+ vsize sz = INT_MAX;
+ for (vsize i = 0; i < asc.size (); i++)
+ {
+ vsize my_sz = asc[i]->grobs_.size ();
+ if (sz != my_sz)
+ ascs.push_back (vector<Accidental_placement_entry *> ());
+ ascs.back ().push_back (asc[i]);
+ sz = my_sz;
+ }
-/*
- TODO: there should be more space in the following situation
+ apes->clear ();
+ for (vsize i = 0; i < ascs.size (); i++)
+ {
+ int parity = 1;
+ for (vsize j = 0; j < ascs[i].size ();)
+ {
+ Accidental_placement_entry *a = 0;
+ if (parity)
+ {
+ a = ascs[i].back ();
+ ascs[i].pop_back ();
+ }
+ else
+ a = ascs[i][j++];
+
+ apes->push_back (a);
+ parity = !parity;
+ }
+ }
- Natural + downstem
+ reverse (*apes);
+}
- |_
- | | X
- |_| |
- | |
-
- */
-SCM
-Accidental_placement::position_accidentals (Grob * me)
+static vector<Accidental_placement_entry *>
+build_apes (SCM accs)
{
- if (!me->live ())
- return SCM_UNSPECIFIED;
-
- SCM accs = me->get_property ("accidental-grobs");
-
- /*
- TODO: there is a bug in this code. If two accs are on the same
- Y-position, they share an Ape, and will be printed in overstrike.
- */
- Link_array<Accidental_placement_entry> apes;
- for (SCM s = accs; is_pair (s); s =ly_cdr (s))
+ vector<Accidental_placement_entry *> apes;
+ for (SCM s = accs; scm_is_pair (s); s = scm_cdr (s))
{
Accidental_placement_entry *ape = new Accidental_placement_entry;
- ape->notename_ = ly_scm2int (ly_caar (s));
-
- for (SCM t = ly_cdar (s); is_pair (t); t =ly_cdr (t))
- ape->grobs_.push (unsmob_grob (ly_car (t)));
- apes.push (ape);
+ for (SCM t = scm_cdar (s); scm_is_pair (t); t = scm_cdr (t))
+ ape->grobs_.push_back (Grob::unsmob (scm_car (t)));
+
+ apes.push_back (ape);
}
+ return apes;
+}
- Grob *common[] = {me, 0};
+static void
+set_ape_skylines (Accidental_placement_entry *ape,
+ Grob **common, Real padding)
+{
+ vector<Grob *> accs (ape->grobs_);
+ vector_sort (accs, &acc_less);
+
+ /* We know that each accidental has the same note name and we assume that
+ accidentals in different octaves won't collide. If two or more
+ accidentals are in the same octave:
+ 1) if they are the same accidental, print them in overstrike
+ 2) otherwise, shift one to the left so they don't overlap. */
+ int last_octave = 0;
+ Real offset = 0;
+ Real last_offset = 0;
+ Rational last_alteration (0);
+ for (vsize i = accs.size (); i--;)
+ {
+ Grob *a = accs[i];
+ Pitch *p = accidental_pitch (a);
+
+ if (!p)
+ continue;
+
+ if (i == accs.size () - 1 || p->get_octave () != last_octave)
+ {
+ last_offset = 0;
+ offset = a->extent (a, X_AXIS)[LEFT] - padding;
+ }
+ else if (p->get_alteration () == last_alteration)
+ a->translate_axis (last_offset, X_AXIS);
+ else /* Our alteration is different from the last one */
+ {
+ Real this_offset = offset - a->extent (a, X_AXIS)[RIGHT];
+ a->translate_axis (this_offset, X_AXIS);
+
+ last_offset = this_offset;
+ offset -= a->extent (a, X_AXIS).length () + padding;
+ }
+
+ if (Skyline_pair *sky = Skyline_pair::unsmob (a->get_property ("horizontal-skylines")))
+ {
+ Skyline_pair copy (*sky);
+ copy.raise (a->relative_coordinate (common[X_AXIS], X_AXIS));
+ copy.shift (a->relative_coordinate (common[Y_AXIS], Y_AXIS));
+ ape->horizontal_skylines_.merge (copy);
+ }
+
+ last_octave = p->get_octave ();
+ last_alteration = p->get_alteration ();
+ }
+}
- /*
- First we must extract *all* pointers. We can only determine
- extents if we're sure that we've found the right common refpoint
- */
- Link_array<Grob> note_cols, heads;
- for (int i= apes.size (); i--;)
- {
- Accidental_placement_entry * ape = apes[i];
- for (int j = ape->grobs_.size (); j--;)
- {
- Grob * a = ape->grobs_[j];
-
- if (common[Y_AXIS])
- common[Y_AXIS] = common[Y_AXIS]->common_refpoint (a, Y_AXIS);
- else
- common[Y_AXIS] = a;
-
- Grob *head = a->get_parent (Y_AXIS);
-
- Grob * col = head->get_parent (X_AXIS);
- if (Note_column::has_interface (col))
- note_cols.push (col);
- else
- heads.push (head);
- }
+static vector<Grob *>
+extract_heads_and_stems (vector<Accidental_placement_entry *> const &apes)
+{
+ vector<Grob *> note_cols;
+ vector<Grob *> ret;
+
+ for (vsize i = apes.size (); i--;)
+ {
+ Accidental_placement_entry *ape = apes[i];
+ for (vsize j = ape->grobs_.size (); j--;)
+ {
+ Grob *acc = ape->grobs_[j];
+ Grob *head = acc->get_parent (Y_AXIS);
+ Grob *col = head->get_parent (X_AXIS);
+
+ if (Note_column::has_interface (col))
+ note_cols.push_back (col);
+ else
+ ret.push_back (head);
+ }
}
/*
- This is a little kludgy: to get all notes, we look if there are
- collisions as well.
- */
- for (int i = note_cols.size () ; i--;)
+ This is a little kludgy: in case there are note columns without
+ accidentals, we get them from the Note_collision objects.
+ */
+ for (vsize i = note_cols.size (); i--;)
{
Grob *c = note_cols[i]->get_parent (X_AXIS);
if (Note_collision_interface::has_interface (c))
- {
- Link_array<Grob> gs =
- Pointer_group_interface__extract_grobs (c, (Grob*)0, "elements");
-
- note_cols.concat (gs);
- }
- }
-
- for (int i = note_cols.size () ; i--;)
- {
- heads.concat (Pointer_group_interface__extract_grobs (note_cols[i],
- (Grob*)0,
- "note-heads"));
-
+ {
+ extract_grob_set (c, "elements", columns);
+ concat (note_cols, columns);
+ }
}
- heads.default_sort ();
- heads.uniq ();
- common[Y_AXIS] = common_refpoint_of_array (heads, common[Y_AXIS], Y_AXIS);
+ /* Now that we have all of the columns, grab all of the note-heads */
+ for (vsize i = note_cols.size (); i--;)
+ concat (ret, extract_grob_array (note_cols[i], "note-heads"));
+
+ /* Now that we have all of the heads, grab all of the stems */
+ for (vsize i = ret.size (); i--;)
+ if (Grob *s = Rhythmic_head::get_stem (ret[i]))
+ ret.push_back (s);
- for (int i= apes.size (); i--;)
- {
- Accidental_placement_entry * ape = apes[i];
- ape->left_skyline_ = empty_skyline (LEFT);
- ape->right_skyline_ = empty_skyline (RIGHT);
-
- for (int j = apes[i]->grobs_.size (); j--;)
- {
- Grob * a = apes[i]->grobs_[j];
-
- Array<Box> boxes = Accidental_interface::accurate_boxes (a, common);
-
- ape->extents_.concat (boxes);
- for (int j = boxes.size (); j--;)
- {
- insert_extent_into_skyline (&ape->left_skyline_, boxes[j], Y_AXIS, LEFT);
- insert_extent_into_skyline (&ape->right_skyline_ , boxes[j], Y_AXIS, RIGHT);
- }
- }
- }
+ uniquify (ret);
+ return ret;
+}
+static Grob *
+common_refpoint_of_accidentals (vector<Accidental_placement_entry *> const &apes, Axis a)
+{
+ Grob *ret = 0;
- Interval total;
- for (int i = apes.size (); i--;)
- {
- Interval y ;
-
- for (int j = apes[i]->extents_.size (); j--;)
- {
- y.unite (apes[i]->extents_[j][Y_AXIS]);
- }
- apes[i]->vertical_extent_ = y;
- total.unite (y);
- }
- all_accidental_vertical_extent = total;
- stagger_apes (&apes);
+ for (vsize i = apes.size (); i--;)
+ for (vsize j = apes[i]->grobs_.size (); j--;)
+ {
+ if (!ret)
+ ret = apes[i]->grobs_[j];
+ else
+ ret = ret->common_refpoint (apes[i]->grobs_[j], a);
+ }
- Accidental_placement_entry * head_ape = new Accidental_placement_entry;
- common[X_AXIS] = common_refpoint_of_array (heads, common[X_AXIS], X_AXIS);
- Array<Skyline_entry> head_skyline (empty_skyline (LEFT));
- Array<Box> head_extents;
- for (int i = heads.size (); i--;)
- {
- Box b (heads[i]->extent (common[X_AXIS] , X_AXIS),
- heads[i]->extent (common[Y_AXIS], Y_AXIS));
+ return ret;
+}
- insert_extent_into_skyline (&head_skyline, b , Y_AXIS, LEFT);
- }
+static Skyline
+build_heads_skyline (vector<Grob *> const &heads_and_stems,
+ Grob **common)
+{
+ vector<Box> head_extents;
+ for (vsize i = heads_and_stems.size (); i--;)
+ head_extents.push_back (Box (heads_and_stems[i]->extent (common[X_AXIS], X_AXIS),
+ heads_and_stems[i]->pure_height (common[Y_AXIS], 0, INT_MAX)));
- head_ape-> left_skyline_ = head_skyline;
- head_ape->offset_ = 0.0;
+ return Skyline (head_extents, Y_AXIS, LEFT);
+}
- Real padding = robust_scm2double (me->get_property ("padding"),0.2);
+/*
+ Position the apes, starting from the right, so that they don't collide.
+ Return the total width.
+*/
+static Interval
+position_apes (Grob *me,
+ vector<Accidental_placement_entry *> const &apes,
+ Skyline const &heads_skyline)
+{
+ Real padding = robust_scm2double (me->get_property ("padding"), 0.2);
+ Skyline left_skyline = heads_skyline;
+ left_skyline.raise (-robust_scm2double (me->get_property ("right-padding"), 0));
- Array<Skyline_entry> left_skyline = head_ape->left_skyline_;
- heighten_skyline (&left_skyline,
- -robust_scm2double (me->get_property ("right-padding"), 0));
/*
Add accs entries right-to-left.
- */
- for (int i= apes.size (); i-- > 0;)
+ */
+ Interval width;
+ Real last_offset = 0.0;
+ for (vsize i = apes.size (); i-- > 0;)
{
- Real offset =
- -skyline_meshing_distance (apes[i]->right_skyline_, left_skyline);
+ Accidental_placement_entry *ape = apes[i];
+
+ Real offset = -ape->horizontal_skylines_[RIGHT]
+ .distance (left_skyline, 0.1);
if (isinf (offset))
- offset = (i < apes.size () - 1) ? apes[i+1]->offset_ : 0.0;
+ offset = last_offset;
else
- offset -= padding;
-
- apes[i]->offset_ = offset;
+ offset -= padding;
- Array<Skyline_entry> new_left_skyline = apes[i]->left_skyline_;
- heighten_skyline (&new_left_skyline, apes[i]->offset_);
- merge_skyline (&new_left_skyline, left_skyline, LEFT);
+ Skyline new_left_skyline = ape->horizontal_skylines_[LEFT];
+ new_left_skyline.raise (offset);
+ new_left_skyline.merge (left_skyline);
left_skyline = new_left_skyline;
- }
- for (int i = apes.size (); i--;)
- {
- Accidental_placement_entry* ape = apes[i];
- for (int j = ape->grobs_.size (); j--;)
- {
- ape->grobs_[j]->translate_axis (ape->offset_, X_AXIS);
- }
+ /* Shift all of the accidentals in this ape */
+ for (vsize j = ape->grobs_.size (); j--;)
+ ape->grobs_[j]->translate_axis (offset, X_AXIS);
+
+ for (LEFT_and_RIGHT (d))
+ {
+ Real mh = ape->horizontal_skylines_[d].max_height ();
+ if (!isinf (mh))
+ width.add_point (mh + offset);
+ }
+
+ last_offset = offset;
}
-
- Interval left_extent, right_extent;
- Accidental_placement_entry *ape = apes[0];
+ return width;
+}
+
+/*
+ This routine computes placements of accidentals. During
+ add_accidental (), accidentals are already grouped by note, so that
+ octaves are placed above each other; they form columns. Then the
+ columns are sorted: the biggest columns go closest to the note.
+ Then the columns are spaced as closely as possible (using skyline
+ spacing).
- for (int i = ape->extents_.size (); i--;)
- left_extent.unite (ape->offset_ + ape->extents_[i][X_AXIS]);
- ape = apes.top ();
- for (int i = ape->extents_.size (); i--;)
- right_extent.unite (ape->offset_ + ape->extents_[i][X_AXIS]);
+ TODO: more advanced placement. Typically, the accs should be placed
+ to form a C shape, like this
-
- left_extent[LEFT] -= robust_scm2double (me->get_property ("left-padding"), 0);
+ * ##
+ * b b
+ * # #
+ * b
+ * b b
-
- Interval width (left_extent[LEFT], right_extent[RIGHT]);
+ The naturals should be left of the C as well; they should
+ be separate accs.
- SCM scm_width = ly_interval2scm (width);
- me->set_extent (scm_width, X_AXIS);
-
- for (int i = apes.size (); i--;)
- delete apes[i];
+ Note that this placement problem looks NP hard, so we just use a
+ simple strategy, not an optimal choice.
+*/
+
+/*
+ TODO: there should be more space in the following situation
+
+
+ Natural + downstem
+
+ *
+ * |_
+ * | | X
+ * |_| |
+ * | |
+ *
+*/
+
+MAKE_SCHEME_CALLBACK (Accidental_placement, calc_positioning_done, 1);
+SCM
+Accidental_placement::calc_positioning_done (SCM smob)
+{
+ Grob *me = Grob::unsmob (smob);
+ if (!me->is_live ())
+ return SCM_BOOL_T;
+
+ me->set_property ("positioning-done", SCM_BOOL_T);
+
+ SCM accs = me->get_object ("accidental-grobs");
+ if (!scm_is_pair (accs))
+ return SCM_BOOL_T;
+
+ vector<Accidental_placement_entry *> apes = build_apes (accs);
+
+ Grob *common[] = {me, 0};
+
+ vector<Grob *> heads_and_stems = extract_heads_and_stems (apes);
+
+ common[Y_AXIS] = common_refpoint_of_accidentals (apes, Y_AXIS);
+ common[Y_AXIS] = common_refpoint_of_array (heads_and_stems, common[Y_AXIS], Y_AXIS);
+ common[X_AXIS] = common_refpoint_of_array (heads_and_stems, me, X_AXIS);
+ Real padding = robust_scm2double (me->get_property ("padding"), 0.2);
+
+ for (vsize i = apes.size (); i--;)
+ set_ape_skylines (apes[i], common, padding);
+ Skyline heads_skyline = build_heads_skyline (heads_and_stems, common);
+
+ stagger_apes (&apes);
+ Interval width = position_apes (me, apes, heads_skyline);
+
+ me->flush_extent_cache (X_AXIS);
+ me->set_property ("X-extent", ly_interval2scm (width));
+
+ junk_pointers (apes);
- return SCM_UNSPECIFIED;
+ return SCM_BOOL_T;
}
ADD_INTERFACE (Accidental_placement,
- "accidental-placement-interface",
- "Resolve accidental collisions.",
- "left-padding padding right-padding accidental-grobs positioning-done")
+ "Resolve accidental collisions.",
+
+ /* properties */
+ "accidental-grobs "
+ "direction "
+ "padding "
+ "positioning-done "
+ "right-padding "
+ "script-priority "
+ );
projects / lilypond.git / blobdiff