source file of the GNU LilyPond music typesetter
- (c) 1998--2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2004 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "engraver.hh"
#include "chord-name.hh"
-#include "chord.hh"
-#include "musical-request.hh"
+#include "event.hh"
#include "paper-def.hh"
#include "font-interface.hh"
#include "paper-def.hh"
-#include "main.hh"
#include "dimensions.hh"
#include "item.hh"
#include "pitch.hh"
#include "protected-scm.hh"
+#include "translator-group.hh"
+#include "warn.hh"
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 *);
+ virtual void stop_translation_timestep ();
+ virtual void process_music ();
+ virtual bool try_music (Music *);
private:
- void add_note (Note_req *);
+ void add_note (Music *);
+
+ Item* chord_name_;
+ Link_array<Music> notes_;
- Item* chord_name_p_;
- Protected_scm chord_;
Protected_scm last_chord_;
};
-ADD_THIS_TRANSLATOR (Chord_name_engraver);
-
Chord_name_engraver::Chord_name_engraver ()
{
- chord_name_p_ = 0;
- chord_ = gh_cons (SCM_EOL, gh_cons (SCM_EOL, SCM_EOL));
- last_chord_ = gh_cons (SCM_EOL, gh_cons (SCM_EOL, SCM_EOL));
+ chord_name_ = 0;
+ last_chord_ = SCM_EOL;
}
void
-Chord_name_engraver::add_note (Note_req* n)
+Chord_name_engraver::add_note (Music * n)
{
- SCM pitches = gh_car (chord_);
- SCM modifiers = gh_cdr (chord_);
- SCM inversion = modifiers == SCM_EOL ? SCM_EOL : gh_car (modifiers);
- SCM bass = modifiers == SCM_EOL ? SCM_EOL : gh_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);
}
-bool
-Chord_name_engraver::do_try_music (Music* m)
+void
+Chord_name_engraver::process_music ()
{
- if (Note_req* n = dynamic_cast<Note_req*> (m))
+ 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++)
{
- add_note (n);
- return true;
+ Music *n = notes_[i];
+ SCM p = n->get_mus_property ("pitch");
+ if (!unsmob_pitch (p))
+ continue;
+
+ if (n->get_mus_property ("inversion") == SCM_BOOL_T)
+ {
+ inversion_event = n;
+ inversion = p;
+ }
+ else if (n->get_mus_property ("bass") == SCM_BOOL_T)
+ bass = p;
+ else
+ pitches = gh_cons (p, pitches);
+ }
+
+ if (inversion_event)
+ {
+ SCM oct = inversion_event->get_mus_property ("octavation");
+ if (gh_number_p (oct))
+ {
+ Pitch *p = unsmob_pitch (inversion_event->get_mus_property ("pitch"));
+ int octavation = gh_scm2int (oct);
+ Pitch orig = p->transposed (Pitch (-octavation, 0,0));
+
+ pitches= gh_cons (orig.smobbed_copy (), pitches);
+ }
+ else
+ programming_error ("Inversion does not have original pitch.");
}
- return false;
-}
-/* Uh, if we do acknowledge_element, shouldn't we postpone
- do_process_music until do_process_acknowlegded?
+ pitches = scm_sort_list (pitches, Pitch::less_p_proc);
- Sigh, I can *never* remember how this works, can't we
- possibly-please just number these functions:
+ SCM name_proc = get_property ("chordNameFunction");
+ SCM markup = scm_call_4 (name_proc, pitches, bass, inversion,
+ daddy_trans_->self_scm());
- do_creation0
-
- post_move1
- do_try_music2
- do_process_music3 (or is it acknowledge_element3 ?)
- acknowledge_element4
+ /*
+ Ugh.
+ */
+ SCM chord_as_scm = gh_cons (pitches, gh_cons (bass, inversion));
- do_pre_move9
-
- do_removal99
-
- and what was the deal with this ``do'' prefix again? */
-void
-Chord_name_engraver::acknowledge_element (Score_element_info i)
-{
- if (Note_req* n = dynamic_cast<Note_req*> (i.req_l_))
- add_note (n);
+ chord_name_ = make_item ("ChordName");
+ chord_name_->set_grob_property("text", markup);
+ announce_grob(chord_name_, notes_[0]->self_scm ());
+ SCM s = get_property ("chordChanges");
+ if (to_boolean (s) && gh_pair_p (last_chord_)
+ && gh_equal_p (chord_as_scm, last_chord_))
+ chord_name_->set_grob_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_ && gh_car (chord_) != SCM_EOL)
+ /*
+ hmm. Should check?
+ */
+ if (m->is_mus_type ("note-event"))
{
-#if 0
- 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_,
- inversion_,
- bass_,
- find_inversion_b);
-
-#endif
-
- chord_name_p_ = new Item (get_property ("ChordName"));
- chord_name_p_->set_elt_property ("chord", chord_);
- 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::do_pre_move_processing ()
+Chord_name_engraver::stop_translation_timestep ()
{
- if (chord_name_p_)
+ if (chord_name_)
{
- typeset_element (chord_name_p_);
+ typeset_grob (chord_name_);
}
- chord_name_p_ = 0;
-
- last_chord_ = chord_;
- chord_ = gh_cons (SCM_EOL, gh_cons (SCM_EOL, 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.
+*/
+ENTER_DESCRIPTION(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 */ "");
projects / lilypond.git / blobdiff