source file of the GNU LilyPond music typesetter
- (c) 1998--2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2006 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "engraver.hh"
#include "chord-name.hh"
-#include "chord.hh"
-#include "musical-request.hh"
-#include "paper-def.hh"
+#include "output-def.hh"
#include "font-interface.hh"
-#include "paper-def.hh"
-#include "main.hh"
+#include "output-def.hh"
#include "dimensions.hh"
#include "item.hh"
-#include "pitch.hh"
#include "protected-scm.hh"
+#include "context.hh"
+#include "warn.hh"
+#include "pitch.hh"
-class Chord_name_engraver : public Engraver
+class Chord_name_engraver : public Engraver
{
-public:
- Chord_name_engraver ();
- VIRTUAL_COPY_CONS (Translator);
-
+ 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 bool try_music (Music *);
+ virtual void finalize ();
+ virtual void derived_mark () const;
private:
- void create_chord_name ();
-
- Item* chord_name_p_;
- Protected_scm pitches_;
+ void add_note (Music *);
- Protected_scm chord_;
- Protected_scm last_chord_;
+ Item *chord_name_;
+ vector<Music*> notes_;
- Protected_scm tonic_req_;
- Protected_scm inversion_req_;
- Protected_scm bass_req_;
+ SCM last_chord_;
};
-ADD_THIS_TRANSLATOR (Chord_name_engraver);
+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_p_ = 0;
- pitches_ = SCM_EOL;
- tonic_req_ = SCM_EOL;
- inversion_req_ = SCM_EOL;
- bass_req_ = SCM_EOL;
- chord_ = SCM_EOL;
+ chord_name_ = 0;
last_chord_ = SCM_EOL;
}
void
-Chord_name_engraver::acknowledge_element (Score_element_info i)
+Chord_name_engraver::add_note (Music *n)
{
- if (Note_req* n = dynamic_cast<Note_req*> (i.req_l_))
- pitches_ = gh_cons (n->get_mus_property ("pitch"), pitches_);
+ notes_.push_back (n);
}
-bool
-Chord_name_engraver::do_try_music (Music* m)
+void
+Chord_name_engraver::process_music ()
{
- if (Note_req* n = dynamic_cast<Note_req*> (m))
- {
- pitches_ = gh_cons (n->get_mus_property ("pitch"), pitches_);
- return true;
- }
- if (Tonic_req* t = dynamic_cast<Tonic_req*> (m))
- {
- tonic_req_ = t->get_mus_property ("pitch");
- return true;
- }
- if (Inversion_req* i = dynamic_cast<Inversion_req*> (m))
+ if (!notes_.size ())
+ return;
+
+ SCM bass = SCM_EOL;
+ SCM inversion = SCM_EOL;
+ SCM pitches = SCM_EOL;
+
+ Music *inversion_event = 0;
+ for (vsize i = 0; i < notes_.size (); i++)
{
- inversion_req_ = i->get_mus_property ("pitch");
- return true;
+ Music *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 (Bass_req* b = dynamic_cast<Bass_req*> (m))
+
+ if (inversion_event)
{
- bass_req_ = b->get_mus_property ("pitch");
- return true;
+ 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");
}
- return false;
+
+ pitches = scm_sort_list (pitches, Pitch::less_p_proc);
+
+ SCM name_proc = get_property ("chordNameFunction");
+ SCM markup = scm_call_4 (name_proc, pitches, bass, inversion,
+ context ()->self_scm ());
+
+ /*
+ Ugh.
+ */
+ SCM chord_as_scm = scm_cons (pitches, scm_cons (bass, inversion));
+
+ chord_name_ = make_item ("ChordName", notes_[0]->self_scm ());
+ chord_name_->set_property ("text", markup);
+
+ SCM s = get_property ("chordChanges");
+ if (to_boolean (s) && scm_is_pair (last_chord_)
+ && ly_is_equal (chord_as_scm, last_chord_))
+ chord_name_->set_property ("begin-of-line-visible", SCM_BOOL_T);
+
+ last_chord_ = chord_as_scm;
}
-void
-Chord_name_engraver::do_process_music ()
+bool
+Chord_name_engraver::try_music (Music *m)
{
- if (!chord_name_p_ && pitches_ != SCM_EOL)
+ /*
+ hmm. Should check?
+ */
+ if (m->is_mus_type ("note-event"))
{
- bool find_inversion_b = false;
- SCM chord_inversion = get_property ("chordInversion");
- if (gh_boolean_p (chord_inversion))
- find_inversion_b = gh_scm2bool (chord_inversion);
-
- chord_ = Chord::pitches_and_requests_to_chord (pitches_,
- 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_ != SCM_EOL &&
- gh_equal_p (chord_, last_chord_))
- chord_name_p_->set_elt_property ("begin-of-line-visible", SCM_BOOL_T);
+ add_note (m);
+ return true;
}
+ return false;
}
void
-Chord_name_engraver::create_chord_name ()
-{
- chord_name_p_ = new Item (get_property ("ChordName"));
-
- SCM pitches = gh_car (chord_);
- SCM modifiers = gh_cdr (chord_);
- SCM inversion = gh_car (modifiers);
- SCM bass = gh_cdr (modifiers);
- /* Hmm, maybe chord-name should use (pitches (inversion . base)) too? */
- chord_name_p_->set_elt_property ("pitches", pitches);
- chord_name_p_->set_elt_property ("inversion", inversion);
- chord_name_p_->set_elt_property ("inversion", bass);
-}
-
-void
-Chord_name_engraver::do_pre_move_processing ()
+Chord_name_engraver::stop_translation_timestep ()
{
- if (chord_name_p_)
- {
- typeset_element (chord_name_p_);
- }
- chord_name_p_ = 0;
-
- pitches_ = SCM_EOL;
- tonic_req_ = SCM_EOL;
- inversion_req_ = SCM_EOL;
- bass_req_ = SCM_EOL;
- last_chord_ = chord_;
- chord_ = SCM_EOL;
+ chord_name_ = 0;
+ notes_.clear ();
}
+/*
+ The READs description is not strictly accurate:
+ which properties are read depend on the chord naming function active.
+*/
+#include "translator.icc"
+
+ADD_TRANSLATOR (Chord_name_engraver,
+ /* doc */ "Catch note-events "
+ "and generate the appropriate chordname.",
+ /* create */ "ChordName",
+ /* accept */ "note-event",
+ /* read */ "chordChanges chordNameExceptions chordNameFunction "
+ "chordNoteNamer chordRootNamer chordNameExceptions majorSevenSymbol",
+ /* write */ "");
projects / lilypond.git / blobdiff