source file of the GNU LilyPond music typesetter
- (c) 1998--2002 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2005 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"
-class Chord_name_engraver : public Engraver
+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 *);
-
+ virtual void finalize ();
+ virtual void derived_mark () const;
private:
void add_note (Music *);
-
- Item* chord_name_;
- Protected_scm chord_;
- Protected_scm last_chord_;
+ Item *chord_name_;
+ Link_array<Music> notes_;
+
+ SCM last_chord_;
};
+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;
}
void
-Chord_name_engraver::add_note (Music * n)
+Chord_name_engraver::add_note (Music *n)
{
- 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");
- 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));
+ notes_.push (n);
+}
+
+void
+Chord_name_engraver::process_music ()
+{
+ if (!notes_.size ())
+ return;
+
+ SCM bass = SCM_EOL;
+ SCM inversion = SCM_EOL;
+ SCM pitches = SCM_EOL;
+
+ Music *inversion_event = 0;
+ for (int i = 0; i < notes_.size (); i++)
+ {
+ 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 (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 ());
+
+ /*
+ 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_c_equal_p (chord_as_scm, last_chord_))
+ chord_name_->set_property ("begin-of-line-visible", SCM_BOOL_T);
+
+ last_chord_ = chord_as_scm;
}
bool
-Chord_name_engraver::try_music (Music* m)
+Chord_name_engraver::try_music (Music *m)
{
/*
- hmm. Should check?
- */
+ hmm. Should check?
+ */
if (m->is_mus_type ("note-event"))
{
add_note (m);
return false;
}
-void
-Chord_name_engraver::process_music ()
-{
- 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);
- }
-}
-
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 ();
}
-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,
+ /* descr */ "Catch note-events "
+ "and generate the appropriate chordname.",
+ /* creats*/ "ChordName",
+ /* accepts */ "note-event",
+ /* acks */ "",
+ /* reads */ "chordChanges chordNameExceptions chordNameFunction "
+ "chordNoteNamer chordRootNamer chordNameExceptions majorSevenSymbol",
+ /* write */ "");