/*
- 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--2012 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1998--2002 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 "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
+#include "translator.icc"
+
+class Chord_name_engraver : public Engraver
{
- TRANSLATOR_DECLARATIONS( Chord_name_engraver);
+ TRANSLATOR_DECLARATIONS (Chord_name_engraver);
protected:
- virtual void stop_translation_timestep ();
- virtual void process_music ();
- virtual bool try_music (Music *);
-
+ 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 add_note (Music *);
-
- Item* chord_name_;
+ Item *chord_name_;
+ vector<Stream_event *> notes_;
- Protected_scm chord_;
- Protected_scm last_chord_;
+ SCM last_chord_;
+ Stream_event *rest_event_;
};
+void
+Chord_name_engraver::finalize ()
+{
+}
+void
+Chord_name_engraver::derived_mark () const
+{
+ scm_gc_mark (last_chord_);
+}
Chord_name_engraver::Chord_name_engraver ()
{
chord_name_ = 0;
- chord_ = gh_cons (SCM_EOL, gh_cons (SCM_EOL, SCM_EOL));
- last_chord_ = chord_;
+ last_chord_ = SCM_EOL;
+ rest_event_ = 0;
}
void
-Chord_name_engraver::add_note (Music * n)
+Chord_name_engraver::process_music ()
{
- SCM pitches = ly_car (chord_);
- SCM modifiers = ly_cdr (chord_);
- SCM inversion = modifiers == SCM_EOL ? SCM_EOL : ly_car (modifiers);
- SCM bass = modifiers == SCM_EOL ? SCM_EOL : ly_cdr (modifiers);
-
- if (n->get_mus_property ("inversion") == SCM_BOOL_T)
- inversion = n->get_mus_property ("pitch");
- else if (n->get_mus_property ("bass") == SCM_BOOL_T)
- bass = n->get_mus_property ("pitch");
+ if (!rest_event_ && !notes_.size ())
+ return;
+
+ chord_name_ = make_item ("ChordName",
+ rest_event_ ? rest_event_->self_scm () : notes_[0]->self_scm ());
+
+ SCM maybe_markup = chord_name_->get_property_data ("text");
+
+ bool make_markup = !(Text_interface::is_markup (maybe_markup)
+ || ly_is_procedure (maybe_markup));
+
+ SCM markup;
+
+ if (rest_event_ && !make_markup) { }
+ else if (rest_event_)
+ {
+ SCM no_chord_markup = get_property ("noChordSymbol");
+ if (!Text_interface::is_markup (no_chord_markup))
+ return;
+ markup = no_chord_markup;
+ }
else
- pitches = scm_sort_list (gh_cons (n->get_mus_property ("pitch"), pitches),
- Pitch::less_p_proc);
- chord_ = gh_cons (pitches, gh_cons (inversion, bass));
+ {
+ SCM bass = SCM_EOL;
+ SCM inversion = SCM_EOL;
+ SCM pitches = SCM_EOL;
+
+ 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");
+ if (make_markup)
+ markup = scm_call_4 (name_proc, pitches, bass, inversion,
+ context ()->self_scm ());
+ }
+ /*
+ Ugh.
+ */
+ if (make_markup)
+ chord_name_->set_property ("text", markup);
+ else if (Text_interface::is_markup (maybe_markup))
+ markup = maybe_markup;
+
+ SCM chord_changes = get_property ("chordChanges");
+ if (to_boolean (chord_changes) && scm_is_pair (last_chord_)
+ && ly_is_equal (markup, last_chord_))
+ chord_name_->set_property ("begin-of-line-visible", SCM_BOOL_T);
+
+ last_chord_ = markup;
}
-bool
-Chord_name_engraver::try_music (Music* m)
+IMPLEMENT_TRANSLATOR_LISTENER (Chord_name_engraver, note);
+void
+Chord_name_engraver::listen_note (Stream_event *ev)
{
- /*
- hmm. Should check?
- */
- if (m->is_mus_type ("note-event"))
- {
- add_note (m);
- return true;
- }
- return false;
+ notes_.push_back (ev);
}
+IMPLEMENT_TRANSLATOR_LISTENER (Chord_name_engraver, rest);
void
-Chord_name_engraver::process_music ()
+Chord_name_engraver::listen_rest (Stream_event *ev)
{
- if (ly_car (chord_) != SCM_EOL)
- {
- chord_name_ = new Item (get_property ("ChordName"));
- chord_name_->set_grob_property ("chord", chord_);
- announce_grob(chord_name_, SCM_EOL);
- SCM s = get_property ("chordChanges");
- if (to_boolean (s) && ly_car (last_chord_) != SCM_EOL
- && gh_equal_p (chord_, last_chord_))
- chord_name_->set_grob_property ("begin-of-line-visible", SCM_BOOL_T);
- }
+ ASSIGN_EVENT_ONCE (rest_event_, ev);
}
void
Chord_name_engraver::stop_translation_timestep ()
{
- if (chord_name_)
- {
- typeset_grob (chord_name_);
- }
chord_name_ = 0;
-
- if (ly_car (chord_) != SCM_EOL)
- last_chord_ = chord_;
- chord_ = gh_cons (SCM_EOL, gh_cons (SCM_EOL, SCM_EOL));
+ notes_.clear ();
+ rest_event_ = 0;
}
-ENTER_DESCRIPTION(Chord_name_engraver,
-/* descr */ "Catch note-events, Tonic_reqs, Inversion_reqs, Bass_req
-and generate the appropriate chordname.",
-/* creats*/ "ChordName",
-/* accepts */ "note-event busy-playing-event",
-/* acks */ "",
-/* reads */ "chordChanges",
-/* write */ "");
+/*
+ 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 */
+ ""
+ );
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