/*
- accidental-engraver.cc -- implement accidental_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
-
- (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 1997--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
Modified 2001--2002 by Rune Zedeler <rz@daimi.au.dk>
+
+ 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.
+
+ 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 "accidental-placement.hh"
#include "arpeggio.hh"
-#include "spanner.hh"
#include "context.hh"
-#include "item.hh"
+#include "duration.hh"
#include "engraver.hh"
#include "international.hh"
+#include "item.hh"
#include "pitch.hh"
#include "protected-scm.hh"
#include "rhythmic-head.hh"
#include "separation-item.hh"
#include "side-position-interface.hh"
+#include "spanner.hh"
#include "stream-event.hh"
#include "tie.hh"
#include "warn.hh"
class Accidental_engraver : public Engraver
{
- int get_bar_number ();
void update_local_key_signature (SCM new_signature);
void create_accidental (Accidental_entry *entry, bool, bool);
Grob *make_standard_accidental (Stream_event *note, Grob *note_head, Engraver *trans, bool);
void stop_translation_timestep ();
void process_acknowledged ();
-
+
virtual void finalize ();
virtual void derived_mark () const;
Context *trans = context ()->get_parent_context ();
- /* Reset parent contexts so that e.g. piano-accidentals won't remember old
- cross-staff accidentals after key-sig-changes */
+ /*
+ Reset parent contexts so that e.g. piano-accidentals won't remember old
+ cross-staff accidentals after key-sig-changes.
+ */
SCM val;
- while (trans && trans->where_defined (ly_symbol2scm ("localKeySignature"), &val)==trans)
+ while (trans && trans->where_defined (ly_symbol2scm ("localKeySignature"), &val) == trans)
{
trans->set_property ("localKeySignature", ly_deep_copy (last_keysig_));
trans = trans->get_parent_context ();
}
}
-
-/** Calculate the number of accidentals on basis of the current local key
- sig (passed as argument)
-
- * First check step+octave (taking into account barnumbers if necessary).
-
- * Then check the global signature (only step).
-
- Return number of accidentals (0, 1 or 2). */
-
-static bool
-recent_enough (int bar_number, SCM alteration_def, SCM laziness)
-{
- if (scm_is_number (alteration_def)
- || laziness == SCM_BOOL_T)
- return true;
-
- return (bar_number <= scm_to_int (scm_cdr (alteration_def)) + scm_to_int (laziness));
-}
-
-static Rational
-extract_alteration (SCM alteration_def)
-{
- if (scm_is_number (alteration_def))
- return ly_scm2rational (alteration_def);
- else if (scm_is_pair (alteration_def))
- return ly_scm2rational (scm_car (alteration_def));
- else if (alteration_def == SCM_BOOL_F)
- return Rational (0);
- else
- assert (0);
- return Rational (0);
-}
-
-bool
-is_tied (SCM alteration_def)
-{
- SCM tied = ly_symbol2scm ("tied");
- return (alteration_def == tied
- || (scm_is_pair (alteration_def) && scm_car (alteration_def) == tied));
-}
-
struct Accidental_result
{
bool need_acc;
bool need_restore;
- Accidental_result () {
+ Accidental_result ()
+ {
need_restore = need_acc = false;
}
- int score () const {
+ Accidental_result (bool restore, bool acc)
+ {
+ need_restore = restore;
+ need_acc = acc;
+ }
+
+ Accidental_result (SCM scm)
+ {
+ need_restore = to_boolean (scm_car (scm));
+ need_acc = to_boolean (scm_cdr (scm));
+ }
+
+ int score () const
+ {
return need_acc ? 1 : 0
+ need_restore ? 1 : 0;
}
};
-Accidental_result
-check_pitch_against_signature (SCM key_signature, Pitch const &pitch,
- int bar_number, SCM laziness, bool ignore_octave)
-{
- Accidental_result result;
- int n = pitch.get_notename ();
- int o = pitch.get_octave ();
-
- SCM previous_alteration = SCM_BOOL_F;
-
- SCM from_same_octave = ly_assoc_get (scm_cons (scm_from_int (o),
- scm_from_int (n)), key_signature, SCM_BOOL_F);
- SCM from_key_signature = ly_assoc_get (scm_from_int (n), key_signature, SCM_BOOL_F);
- SCM from_other_octaves = SCM_BOOL_F;
- for (SCM s = key_signature; scm_is_pair (s); s = scm_cdr (s))
- {
- SCM entry = scm_car (s);
- if (scm_is_pair (scm_car (entry))
- && scm_cdar (entry) == scm_from_int (n))
- {
- from_other_octaves = scm_cdr (entry);
- break;
- }
- }
-
- if (!ignore_octave
- && from_same_octave != SCM_BOOL_F
- && recent_enough (bar_number, from_same_octave, laziness))
- previous_alteration = from_same_octave;
- else if (ignore_octave
- && from_other_octaves != SCM_BOOL_F
- && recent_enough (bar_number, from_other_octaves, laziness))
- previous_alteration = from_other_octaves;
- else if (from_key_signature != SCM_BOOL_F)
- previous_alteration = from_key_signature;
-
- if (is_tied (previous_alteration))
- {
- result.need_acc = true;
- }
- else
- {
- Rational prev = extract_alteration (previous_alteration);
- Rational alter = pitch.get_alteration ();
-
- if (alter != prev)
- {
- result.need_acc = true;
- if (alter.sign ()
- && (alter.abs () < prev.abs ()
- || (prev * alter).sign () < 0))
- result.need_restore = true;
- }
- }
-
- return result;
-}
-
static
Accidental_result
check_pitch_against_rules (Pitch const &pitch, Context *origin,
- SCM rules, int bar_number)
+ SCM rules, int bar_number, SCM measurepos)
{
Accidental_result result;
+ SCM pitch_scm = pitch.smobbed_copy ();
+ SCM barnum_scm = scm_from_int (bar_number);
+
if (scm_is_pair (rules) && !scm_is_symbol (scm_car (rules)))
warning (_f ("accidental typesetting list must begin with context-name: %s",
ly_scm2string (scm_car (rules)).c_str ()));
- for (; scm_is_pair (rules) && origin;
- rules = scm_cdr (rules))
+ for (; scm_is_pair (rules) && origin; rules = scm_cdr (rules))
{
SCM rule = scm_car (rules);
- if (scm_is_pair (rule))
+ if (ly_is_procedure (rule))
{
- SCM type = scm_car (rule);
- SCM laziness = scm_cdr (rule);
- SCM localsig = origin->get_property ("localKeySignature");
-
- bool same_octave
- = (ly_symbol2scm ("same-octave") == type);
- bool any_octave
- = (ly_symbol2scm ("any-octave") == type);
+ SCM rule_result_scm = scm_call_4 (rule, origin->self_scm (),
+ pitch_scm, barnum_scm, measurepos);
+ Accidental_result rule_result (rule_result_scm);
- if (same_octave || any_octave)
- {
- Accidental_result rule_result = check_pitch_against_signature
- (localsig, pitch, bar_number, laziness, any_octave);
-
- result.need_acc |= rule_result.need_acc;
- result.need_restore |= rule_result.need_restore;
- }
- else
- warning (_f ("ignoring unknown accidental rule: %s",
- ly_symbol2string (type).c_str ()));
+ result.need_acc |= rule_result.need_acc;
+ result.need_restore |= rule_result.need_restore;
}
- /* if symbol then it is a context name. Scan parent contexts to
- find it. */
+ /*
+ If symbol then it is a context name. Scan parent contexts to
+ find it.
+ */
else if (scm_is_symbol (rule))
{
Context *dad = origin;
origin = dad;
}
else
- warning (_f ("pair or context-name expected for accidental rule, found %s",
- ly_scm2string (rule).c_str ()));
+ warning (_f ("procedure or context-name expected for accidental rule, found %s",
+ print_scm_val (rule).c_str ()));
}
return result;
}
-int
-Accidental_engraver::get_bar_number ()
-{
- SCM barnum = get_property ("internalBarNumber");
- SCM smp = get_property ("measurePosition");
-
- int bn = robust_scm2int (barnum, 0);
-
- Moment mp = robust_scm2moment (smp, Moment (0));
- if (mp.main_part_ < Rational (0))
- bn--;
-
- return bn;
-}
-
void
Accidental_engraver::process_acknowledged ()
{
{
SCM accidental_rules = get_property ("autoAccidentals");
SCM cautionary_rules = get_property ("autoCautionaries");
- int barnum = get_bar_number ();
+ SCM measure_position = get_property ("measurePosition");
+ int barnum = measure_number (context());
for (vsize i = 0; i < accidentals_.size (); i++)
{
if (!pitch)
continue;
- Accidental_result acc = check_pitch_against_rules (*pitch, origin,
- accidental_rules, barnum);
- Accidental_result caut = check_pitch_against_rules (*pitch, origin,
- cautionary_rules, barnum);
+ Accidental_result acc = check_pitch_against_rules (*pitch, origin, accidental_rules,
+ barnum, measure_position);
+ Accidental_result caut = check_pitch_against_rules (*pitch, origin, cautionary_rules,
+ barnum, measure_position);
bool cautionary = to_boolean (note->get_property ("cautionary"));
if (caut.score () > acc.score ())
{
- acc.need_acc |= caut.need_acc;
- acc.need_restore |= caut.need_restore;
+ acc.need_acc |= caut.need_acc;
+ acc.need_restore |= caut.need_restore;
cautionary = true;
}
if (!acc.need_acc && forced)
acc.need_acc = true;
- /* Cannot look for ties: it's not guaranteed that they reach
- us before the notes. */
- if (acc.need_acc
- && !note->in_event_class ("trill-span-event"))
- create_accidental (&accidentals_[i], acc.need_restore, cautionary);
+ /*
+ Cannot look for ties: it's not guaranteed that they reach
+ us before the notes.
+ */
+ if (!note->in_event_class ("trill-span-event"))
+ {
+ if (acc.need_acc)
+ create_accidental (&accidentals_[i], acc.need_restore, cautionary);
- if (forced || cautionary)
- accidentals_[i].accidental_->set_property ("forced", SCM_BOOL_T);
+ if (forced || cautionary)
+ accidentals_[i].accidental_->set_property ("forced", SCM_BOOL_T);
+ }
}
}
}
}
Grob *
-Accidental_engraver::make_standard_accidental (Stream_event *note,
+Accidental_engraver::make_standard_accidental (Stream_event * /* note */,
Grob *note_head,
Engraver *trans,
bool cautionary)
{
- (void)note;
-
/*
We construct the accidentals at the originating Voice
level, so that we get the property settings for
Accidental_placement::add_accidental (accidental_placement_, a);
note_head->set_object ("accidental-grob", a->self_scm ());
-
+
return a;
}
Grob *
-Accidental_engraver::make_suggested_accidental (Stream_event *note,
+Accidental_engraver::make_suggested_accidental (Stream_event * /* note */,
Grob *note_head,
Engraver *trans)
{
- (void) note;
-
Grob *a = trans->make_item ("AccidentalSuggestion", note_head->self_scm ());
Side_position_interface::add_support (a, note_head);
for (vsize i = accidentals_.size (); i--;)
{
- int barnum = get_bar_number ();
-
Stream_event *note = accidentals_[i].melodic_;
Context *origin = accidentals_[i].origin_;
+ int barnum = measure_number (origin);
+
Pitch *pitch = unsmob_pitch (note->get_property ("pitch"));
if (!pitch)
continue;
Rational a = pitch->get_alteration ();
SCM key = scm_cons (scm_from_int (o), scm_from_int (n));
+ Moment end_mp = measure_position (context (),
+ unsmob_duration (note->get_property ("duration")));
+ SCM position = scm_cons (scm_from_int (barnum), end_mp.smobbed_copy ());
+
SCM localsig = SCM_EOL;
while (origin
&& origin->where_defined (ly_symbol2scm ("localKeySignature"), &localsig))
{
bool change = false;
- if (accidentals_[i].tied_)
+ if (accidentals_[i].tied_
+ && !(to_boolean (accidentals_[i].accidental_->get_property ("forced"))))
{
/*
Remember an alteration that is different both from
that of the tied note and of the key signature.
*/
- localsig = ly_assoc_prepend_x (localsig, key, scm_cons (ly_symbol2scm ("tied"),
- scm_from_int (barnum)));
-
+ localsig = ly_assoc_prepend_x (localsig, key,scm_cons (ly_symbol2scm ("tied"),
+ position));
change = true;
}
else
{
/*
- not really really correct if there are more than one
- noteheads with the same notename.
+ not really correct if there is more than one
+ note head with the same notename.
*/
localsig = ly_assoc_prepend_x (localsig, key,
- scm_cons (ly_rational2scm (a),
- scm_from_int (barnum)));
+ scm_cons (ly_rational2scm (a),
+ position));
change = true;
}
accidental_placement_ = 0;
accidentals_.clear ();
+ note_columns_.clear ();
left_objects_.clear ();
right_objects_.clear ();
}
ADD_ACKNOWLEDGER (Accidental_engraver, note_column);
ADD_TRANSLATOR (Accidental_engraver,
-
- "Make accidentals. "
- "Catch note heads, ties and notices key-change events. "
- "This engraver usually lives at Staff level, but "
- "reads the settings for Accidental at @code{Voice} level, "
- "so you can @code{\\override} them at @code{Voice}. ",
-
- /* grobs */
+ /* doc */
+ "Make accidentals."
+ " Catch note heads, ties and notices key-change events."
+ " This engraver usually lives at Staff level, but"
+ " reads the settings for Accidental at @code{Voice} level,"
+ " so you can @code{\\override} them at @code{Voice}.",
+
+ /* create */
"Accidental "
"AccidentalCautionary "
+ "AccidentalPlacement "
"AccidentalSuggestion ",
- /* props */
+ /* read */
"autoAccidentals "
"autoCautionaries "
"internalBarNumber "
"extraNatural "
"harmonicAccidentals "
+ "keySignature "
"localKeySignature ",
+
+ /* write */
"localKeySignature "
);
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