/*
- chord-name-engraver.cc -- implement Chord_name_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1998--2011 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1998--2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ 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"
#include "chord-name.hh"
-#include "chord.hh"
-#include "musical-request.hh"
-#include "paper-def.hh"
-#include "font-interface.hh"
-#include "paper-def.hh"
-#include "main.hh"
+#include "context.hh"
#include "dimensions.hh"
+#include "engraver.hh"
+#include "font-interface.hh"
#include "item.hh"
-#include "musical-pitch.hh"
+#include "output-def.hh"
+#include "pitch.hh"
+#include "protected-scm.hh"
+#include "stream-event.hh"
+#include "text-interface.hh"
+#include "warn.hh"
-class Chord_name_engraver : public Engraver
-{
-public:
- Chord_name_engraver ();
- VIRTUAL_COPY_CONS (Translator);
+#include "translator.icc"
+class Chord_name_engraver : public Engraver
+{
+ TRANSLATOR_DECLARATIONS (Chord_name_engraver);
protected:
- virtual void do_pre_move_processing ();
- virtual void acknowledge_element (Score_element_info i);
- virtual void do_process_music ();
- virtual bool do_try_music (Music* m);
-
+ void stop_translation_timestep ();
+ void process_music ();
+ virtual void finalize ();
+ virtual void derived_mark () const;
+ DECLARE_TRANSLATOR_LISTENER (note);
+ DECLARE_TRANSLATOR_LISTENER (rest);
private:
- void create_chord_name ();
-
- Array<Musical_pitch> pitch_arr_;
- Item* chord_name_p_;
- Chord* chord_p_;
- Chord* last_chord_p_;
- Tonic_req* tonic_req_;
- Inversion_req* inversion_req_;
- Bass_req* bass_req_;
+ Item *chord_name_;
+ vector<Stream_event*> notes_;
+
+ SCM last_chord_;
+ Stream_event *rest_event_;
};
-ADD_THIS_TRANSLATOR (Chord_name_engraver);
-
-Chord_name_engraver::Chord_name_engraver ()
+void
+Chord_name_engraver::finalize ()
{
- chord_name_p_ = 0;
- tonic_req_ = 0;
- inversion_req_ = 0;
- bass_req_ = 0;
- chord_p_ = 0;
- last_chord_p_ = 0;
}
void
-Chord_name_engraver::acknowledge_element (Score_element_info i)
+Chord_name_engraver::derived_mark () const
{
- if (Note_req* n = dynamic_cast<Note_req*> (i.req_l_))
- pitch_arr_.push (* unsmob_pitch (n->get_mus_property ("pitch")));
+ scm_gc_mark (last_chord_);
}
-bool
-Chord_name_engraver::do_try_music (Music* m)
+Chord_name_engraver::Chord_name_engraver ()
{
- if (Note_req* n = dynamic_cast<Note_req*> (m))
- {
- pitch_arr_.push (* unsmob_pitch (n->get_mus_property ("pitch")));
- return true;
- }
- if (Tonic_req* t = dynamic_cast<Tonic_req*> (m))
- {
- tonic_req_ = t;
- return true;
- }
- if (Inversion_req* i = dynamic_cast<Inversion_req*> (m))
- {
- inversion_req_ = i;
- return true;
- }
- if (Bass_req* b = dynamic_cast<Bass_req*> (m))
- {
- bass_req_ = b;
- return true;
- }
- return false;
+ chord_name_ = 0;
+ last_chord_ = SCM_EOL;
+ rest_event_ = 0;
}
void
-Chord_name_engraver::do_process_music ()
-{
- if (chord_name_p_)
- return;
+Chord_name_engraver::process_music ()
+{
+ SCM markup;
+ SCM bass = SCM_EOL;
+ SCM inversion = SCM_EOL;
+ SCM pitches = SCM_EOL;
+
+ if (rest_event_)
+ {
+ SCM no_chord_markup = get_property ("noChordSymbol");
+ if (!Text_interface::is_markup (no_chord_markup))
+ return;
+ markup = no_chord_markup;
+ }
+ else
+ {
+ if (!notes_.size ())
+ return;
+
+ Stream_event *inversion_event = 0;
+ for (vsize i = 0; i < notes_.size (); i++)
+ {
+ Stream_event *n = notes_[i];
+ SCM p = n->get_property ("pitch");
+ if (!unsmob_pitch (p))
+ continue;
+
+ if (n->get_property ("inversion") == SCM_BOOL_T)
+ {
+ inversion_event = n;
+ inversion = p;
+ }
+ else if (n->get_property ("bass") == SCM_BOOL_T)
+ bass = p;
+ else
+ pitches = scm_cons (p, pitches);
+ }
+
+ if (inversion_event)
+ {
+ SCM oct = inversion_event->get_property ("octavation");
+ if (scm_is_number (oct))
+ {
+ Pitch *p = unsmob_pitch (inversion_event->get_property ("pitch"));
+ int octavation = scm_to_int (oct);
+ Pitch orig = p->transposed (Pitch (-octavation, 0, 0));
+
+ pitches = scm_cons (orig.smobbed_copy (), pitches);
+ }
+ else
+ programming_error ("inversion does not have original pitch");
+ }
+
+ pitches = scm_sort_list (pitches, Pitch::less_p_proc);
+
+ SCM name_proc = get_property ("chordNameFunction");
+ markup = scm_call_4 (name_proc, pitches, bass, inversion,
+ context ()->self_scm ());
+ }
+ /*
+ Ugh.
+ */
+ SCM chord_as_scm = scm_cons (pitches, scm_cons (bass, inversion));
- if (!pitch_arr_.size ())
- return;
+ chord_name_ = make_item ("ChordName",
+ rest_event_ ? rest_event_->self_scm () : notes_[0]->self_scm ());
+ chord_name_->set_property ("text", markup);
- bool find_inversion_b = false;
- SCM chord_inversion = get_property ("chordInversion");
- if (gh_boolean_p (chord_inversion))
- find_inversion_b = gh_scm2bool (chord_inversion);
+ SCM chord_changes = get_property("chordChanges");
+ if (to_boolean (chord_changes) && scm_is_pair (last_chord_)
+ && ly_is_equal (chord_as_scm, last_chord_))
+ chord_name_->set_property ("begin-of-line-visible", SCM_BOOL_T);
- chord_p_ = new Chord (to_chord (pitch_arr_,
- tonic_req_, inversion_req_, bass_req_,
- find_inversion_b));
-
- create_chord_name ();
- announce_element (chord_name_p_, 0);
- SCM s = get_property ("drarnChords"); //FIXME!
- if (to_boolean (s) && last_chord_p_ && !compare (chord_p_, last_chord_p_))
- chord_name_p_->set_elt_property ("begin-of-line-visible", SCM_BOOL_T);
+ last_chord_ = chord_as_scm;
}
+IMPLEMENT_TRANSLATOR_LISTENER (Chord_name_engraver, note);
void
-Chord_name_engraver::create_chord_name ()
+Chord_name_engraver::listen_note (Stream_event *ev)
{
- assert (chord_p_);
- chord_name_p_ = new Item (get_property ("ChordName"));
- /*
- Hmm, why not represent complete chord as list?
- ((tonic third fifth) (inversion bass))
- */
- SCM plist = SCM_EOL;
- for (int i= chord_p_->pitch_arr_.size (); i--; )
- plist = gh_cons (chord_p_->pitch_arr_[i].smobbed_copy (), plist);
-
- chord_name_p_->set_elt_property ("pitches", plist);
- if (chord_p_->inversion_b_)
- chord_name_p_->set_elt_property ("inversion",
- chord_p_->inversion_pitch_.smobbed_copy ());
- if (chord_p_->bass_b_)
- chord_name_p_->set_elt_property ("bass", chord_p_->bass_pitch_.smobbed_copy ());
+ notes_.push_back (ev);
}
+IMPLEMENT_TRANSLATOR_LISTENER (Chord_name_engraver, rest);
void
-Chord_name_engraver::do_pre_move_processing ()
+Chord_name_engraver::listen_rest (Stream_event *ev)
{
- if (chord_name_p_)
- {
- typeset_element (chord_name_p_);
- }
- pitch_arr_.clear ();
- chord_name_p_ = 0;
- tonic_req_ = 0;
- inversion_req_ = 0;
- bass_req_ = 0;
- delete last_chord_p_;
- last_chord_p_ = chord_p_;
- chord_p_ = 0;
+ ASSIGN_EVENT_ONCE(rest_event_, ev);
+}
+
+void
+Chord_name_engraver::stop_translation_timestep ()
+{
+ chord_name_ = 0;
+ notes_.clear ();
+ rest_event_ = 0;
}
+/*
+ The READs description is not strictly accurate:
+ which properties are read depend on the chord naming function active.
+*/
+ADD_TRANSLATOR (Chord_name_engraver,
+ /* doc */
+ "Catch note and rest events and generate the appropriate chordname.",
+
+ /* create */
+ "ChordName ",
+
+ /* read */
+ "chordChanges "
+ "chordNameExceptions "
+ "chordNameFunction "
+ "chordNoteNamer "
+ "chordRootNamer "
+ "chordNameExceptions "
+ "majorSevenSymbol "
+ "noChordSymbol ",
+
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff