/*
- ambitus-engraver.cc -- implement Ambitus_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
-
- (c) 2002--2007 Juergen Reuter <reuter@ipd.uka.de>
+ Copyright (C) 2002--2015 Juergen Reuter <reuter@ipd.uka.de>
Han-Wen Nienhuys <hanwen@xs4all.nl
+
+ 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 "engraver.hh"
{
public:
TRANSLATOR_DECLARATIONS (Ambitus_engraver);
- void process_music ();
+protected:
void acknowledge_note_head (Grob_info);
+
+ void process_music ();
void stop_translation_timestep ();
virtual void finalize ();
virtual void derived_mark () const;
{
ambitus_ = make_item ("AmbitusLine", SCM_EOL);
group_ = make_item ("Ambitus", SCM_EOL);
- Direction d = DOWN;
- do
+ for (DOWN_and_UP (d))
{
heads_[d] = make_item ("AmbitusNoteHead", SCM_EOL);
accidentals_[d] = make_item ("AmbitusAccidental", SCM_EOL);
accidentals_[d]->set_parent (heads_[d], Y_AXIS);
heads_[d]->set_object ("accidental-grob",
- accidentals_[d]->self_scm ());
+ accidentals_[d]->self_scm ());
Axis_group_interface::add_element (group_, heads_[d]);
Axis_group_interface::add_element (group_, accidentals_[d]);
}
- while (flip (&d) != DOWN);
ambitus_->set_parent (heads_[DOWN], X_AXIS);
Axis_group_interface::add_element (group_, ambitus_);
is_typeset_ = false;
}
-Ambitus_engraver::Ambitus_engraver ()
+Ambitus_engraver::Ambitus_engraver (Context *c)
+ : Engraver (c)
{
ambitus_ = 0;
- heads_[LEFT] = heads_[RIGHT] = 0;
- accidentals_[LEFT] = accidentals_[RIGHT] = 0;
+ heads_.set (0, 0);
+ accidentals_.set (0, 0);
group_ = 0;
is_typeset_ = false;
start_key_sig_ = SCM_EOL;
* may then oversee a clef that is defined in a staff context if
* we are in a voice context; middleCPosition would then be
* assumed to be 0.
+
+ * Don't use middleCPosition as this may be thwarted by a cue
+ * starting here. middleCOffset is not affected by cue clefs.
*/
- start_c0_ = robust_scm2int (get_property ("middleCPosition"), 0);
- start_key_sig_ = get_property ("keySignature");
+ int clef_pos = robust_scm2int (get_property ("middleCClefPosition"), 0);
+ int offset = robust_scm2int (get_property ("middleCOffset"), 0);
+
+ start_c0_ = clef_pos + offset;
+ start_key_sig_ = get_property ("keyAlterations");
is_typeset_ = true;
}
Ambitus_engraver::acknowledge_note_head (Grob_info info)
{
Stream_event *nr = info.event_cause ();
- if (nr && nr->in_event_class ("note-event"))
+ if (nr && nr->in_event_class ("note-event")
+ && !to_boolean (info.grob ()->get_property ("ignore-ambitus")))
{
- Pitch pitch = *unsmob_pitch (nr->get_property ("pitch"));
+ SCM p = nr->get_property ("pitch");
+ /*
+ If the engraver is added to a percussion context,
+ filter out unpitched note heads.
+ */
+ if (!unsmob<Pitch> (p))
+ return;
+ Pitch pitch = *unsmob<Pitch> (p);
Drul_array<bool> expands = pitch_interval_.add_point (pitch);
if (expands[UP])
- causes_[UP] = nr;
+ causes_[UP] = nr;
if (expands[DOWN])
- causes_[DOWN] = nr;
+ causes_[DOWN] = nr;
}
}
{
if (ambitus_ && !pitch_interval_.is_empty ())
{
- Grob *accidental_placement =
- make_item ("AccidentalPlacement",
- accidentals_[DOWN]->self_scm ());
-
- Direction d = DOWN;
- do
- {
- Pitch p = pitch_interval_[d];
- heads_[d]->set_property ("cause", causes_[d]->self_scm());
- heads_[d]->set_property ("staff-position",
- scm_from_int (start_c0_
- + p.steps ()));
-
- SCM handle = scm_assoc (scm_cons (scm_from_int (p.get_octave ()),
- scm_from_int (p.get_notename ())),
- start_key_sig_);
-
- if (handle == SCM_BOOL_F)
- handle = scm_assoc (scm_from_int (p.get_notename ()),
- start_key_sig_);
-
- Rational sig_alter = (handle != SCM_BOOL_F)
- ? robust_scm2rational (scm_cdr (handle), Rational (0)) : Rational (0);
-
- if (sig_alter == p.get_alteration ())
- {
- accidentals_[d]->suicide ();
- heads_[d]->set_object ("accidental-grob", SCM_EOL);
- }
- else
- {
- accidentals_[d]->set_property ("alteration", ly_rational2scm (p.get_alteration ()));
- }
- Separation_item::add_conditional_item (heads_[d], accidental_placement);
- Accidental_placement::add_accidental (accidental_placement, accidentals_[d]);
- }
- while (flip (&d) != DOWN);
-
-
- Pointer_group_interface::add_grob (ambitus_, ly_symbol2scm ("note-heads"), heads_[DOWN]);
- Pointer_group_interface::add_grob (ambitus_, ly_symbol2scm ("note-heads"), heads_[UP]);
+ Grob *accidental_placement
+ = make_item ("AccidentalPlacement", accidentals_[DOWN]->self_scm ());
+
+ for (DOWN_and_UP (d))
+ {
+ Pitch p = pitch_interval_[d];
+ heads_[d]->set_property ("cause", causes_[d]->self_scm ());
+ heads_[d]->set_property ("staff-position",
+ scm_from_int (start_c0_ + p.steps ()));
+
+ SCM handle = scm_assoc (scm_cons (scm_from_int (p.get_octave ()),
+ scm_from_int (p.get_notename ())),
+ start_key_sig_);
+
+ if (scm_is_false (handle))
+ handle = scm_assoc (scm_from_int (p.get_notename ()),
+ start_key_sig_);
+
+ Rational sig_alter = (scm_is_true (handle))
+ ? robust_scm2rational (scm_cdr (handle), Rational (0))
+ : Rational (0);
+
+ const Pitch other = pitch_interval_[-d];
+
+ if (sig_alter == p.get_alteration ()
+ && !((p.steps () == other.steps ())
+ && (p.get_alteration () != other.get_alteration ())))
+ {
+ accidentals_[d]->suicide ();
+ heads_[d]->set_object ("accidental-grob", SCM_EOL);
+ }
+ else
+ accidentals_[d]->
+ set_property ("alteration",
+ ly_rational2scm (p.get_alteration ()));
+ Separation_item::add_conditional_item (heads_[d],
+ accidental_placement);
+ Accidental_placement::add_accidental (accidental_placement,
+ accidentals_[d], false, 0);
+ Pointer_group_interface::add_grob (ambitus_,
+ ly_symbol2scm ("note-heads"),
+ heads_[d]);
+ }
+
Axis_group_interface::add_element (group_, accidental_placement);
}
else
{
- Direction d = DOWN;
- do
- {
- accidentals_[d]->suicide ();
- heads_[d]->suicide ();
- }
- while (flip (&d) != DOWN);
+ for (DOWN_and_UP (d))
+ {
+ accidentals_[d]->suicide ();
+ heads_[d]->suicide ();
+ }
ambitus_->suicide ();
}
}
-ADD_ACKNOWLEDGER (Ambitus_engraver, note_head);
+void
+Ambitus_engraver::boot ()
+{
+ ADD_ACKNOWLEDGER (Ambitus_engraver, note_head);
+}
+
ADD_TRANSLATOR (Ambitus_engraver,
- /* doc */
- "",
-
- /* create */
- "AccidentalPlacement "
- "Ambitus "
- "AmbitusAccidental "
- "AmbitusLine "
- "AmbitusNoteHead ",
-
- /* read */
- "",
-
- /* write */
- ""
- );
+ /* doc */
+ "Create an ambitus.",
+
+ /* create */
+ "AccidentalPlacement "
+ "Ambitus "
+ "AmbitusAccidental "
+ "AmbitusLine "
+ "AmbitusNoteHead ",
+
+ /* read */
+ "keyAlterations "
+ "middleCClefPosition "
+ "middleCOffset ",
+
+ /* write */
+ ""
+ );
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