source file of the GNU LilyPond music typesetter
- (c) 1998--2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2008 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "chord-name-engraver.hh"
#include "chord-name.hh"
-#include "musical-request.hh"
-#include "paper-def.hh"
-#include "lookup.hh"
-#include "paper-def.hh"
-#include "main.hh"
+#include "context.hh"
#include "dimensions.hh"
-#include "text-item.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 "warn.hh"
+#include "translator.icc"
-ADD_THIS_TRANSLATOR (Chord_name_engraver);
+class Chord_name_engraver : public Engraver
+{
+ TRANSLATOR_DECLARATIONS (Chord_name_engraver);
+protected:
+ void stop_translation_timestep ();
+ void process_music ();
+ virtual void finalize ();
+ virtual void derived_mark () const;
+ DECLARE_TRANSLATOR_LISTENER (note);
+private:
+ Item *chord_name_;
+ vector<Stream_event*> notes_;
-Chord_name_engraver::Chord_name_engraver ()
+ SCM last_chord_;
+};
+
+void
+Chord_name_engraver::finalize ()
{
- chord_name_p_ = 0;
- tonic_req_ = 0;
- inversion_req_ = 0;
- bass_req_ = 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 (n->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 (n->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;
}
void
-Chord_name_engraver::do_process_music ()
+Chord_name_engraver::process_music ()
{
- if (chord_name_p_)
- return;
- if (!pitch_arr_.size ())
+ if (!notes_.size ())
return;
- 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 bass = SCM_EOL;
+ SCM inversion = SCM_EOL;
+ SCM pitches = SCM_EOL;
- chord_name_p_ = new Chord_name (SCM_EOL);
- Chord chord = to_chord (pitch_arr_, tonic_req_, inversion_req_, bass_req_,
- find_inversion_b);
+ 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");
+ SCM markup = scm_call_4 (name_proc, pitches, bass, inversion,
+ context ()->self_scm ());
/*
- Hmm, why not represent complete chord as list?
- ((tonic third fifth) (inversion bass))
+ Ugh.
*/
- SCM plist = SCM_EOL;
- for (int i= chord.pitch_arr_.size (); i--; )
- plist = gh_cons (chord.pitch_arr_[i].to_scm (), plist);
-
- chord_name_p_->set_elt_property ("pitches", plist);
- if (chord.inversion_b_)
- chord_name_p_->set_elt_property ("inversion",
- chord.inversion_pitch_.to_scm ());
- if (chord.bass_b_)
- chord_name_p_->set_elt_property ("bass", chord.bass_pitch_.to_scm ());
-
- announce_element (Score_element_info (chord_name_p_, 0));
+ 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;
}
+IMPLEMENT_TRANSLATOR_LISTENER (Chord_name_engraver, note);
void
-Chord_name_engraver::do_pre_move_processing ()
+Chord_name_engraver::listen_note (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;
+ notes_.push_back (ev);
}
+void
+Chord_name_engraver::stop_translation_timestep ()
+{
+ chord_name_ = 0;
+ notes_.clear ();
+}
+
+/*
+ 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 events and generate the appropriate chordname.",
+
+ /* create */
+ "ChordName ",
+
+ /* read */
+ "chordChanges "
+ "chordNameExceptions "
+ "chordNameFunction "
+ "chordNoteNamer "
+ "chordRootNamer "
+ "chordNameExceptions "
+ "majorSevenSymbol ",
+
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff