source file of the GNU LilyPond music typesetter
- (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
- */
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
-
-
-#include "event.hh"
#include "item.hh"
#include "bar-line.hh"
#include "staff-symbol-referencer.hh"
-#include "translator-group.hh"
+#include "context.hh"
#include "engraver.hh"
-#include "pitch.hh"
#include "protected-scm.hh"
#include "clef.hh"
+#include "pitch.hh"
+
+/*
+ TODO: The representation of key sigs is all fucked.
+*/
/**
- Make the key signature.
- */
+ Make the key signature.
+*/
class Key_engraver : public Engraver
{
void create_key (bool);
- void read_req (Key_change_req const * r);
- Key_change_req * keyreq_;
- Item * item_;
+ void read_ev (Music const *r);
+ Music *key_ev_;
+ Item *item_;
+ Item *cancellation_;
public:
- TRANSLATOR_DECLARATIONS(Key_engraver);
+ TRANSLATOR_DECLARATIONS (Key_engraver);
protected:
virtual void initialize ();
virtual void finalize ();
- virtual bool try_music (Music *req);
- virtual void stop_translation_timestep ();
- virtual void start_translation_timestep ();
- virtual void process_music ();
+ virtual bool try_music (Music *ev);
+ PRECOMPUTED_VIRTUAL void stop_translation_timestep ();
+ PRECOMPUTED_VIRTUAL void process_music ();
virtual void acknowledge_grob (Grob_info);
};
-
void
Key_engraver::finalize ()
{
}
-
Key_engraver::Key_engraver ()
{
- keyreq_ = 0;
+ key_ev_ = 0;
item_ = 0;
+ cancellation_ = 0;
}
-
void
Key_engraver::create_key (bool def)
{
- if (!item_)
+ if (!item_)
{
- item_ = new Item (get_property ("KeySignature"));
+ item_ = make_item ("KeySignature", key_ev_ ? key_ev_->self_scm () : SCM_EOL);
- item_->set_grob_property ("c0-position",
- get_property ("centralCPosition"));
-
- // todo: put this in basic props.
- item_->set_grob_property ("old-accidentals", get_property ("lastKeySignature"));
- item_->set_grob_property ("new-accidentals", get_property ("keySignature"));
+ item_->set_property ("c0-position",
+ get_property ("middleCPosition"));
- announce_grob(item_, keyreq_ ? keyreq_->self_scm() : SCM_EOL);
+ SCM last = get_property ("lastKeySignature");
+ SCM key = get_property ("keySignature");
+ if (to_boolean (get_property ("printKeyCancellation"))
+ && !scm_is_eq (last, key))
+ {
+ cancellation_ = make_item ("KeyCancellation", key_ev_ ? key_ev_->self_scm () : SCM_EOL);
+ cancellation_->set_property ("old-accidentals", last);
+ cancellation_->set_property ("c0-position",
+ get_property ("middleCPosition"));
+ }
+ item_->set_property ("new-accidentals", key);
}
if (!def)
{
- SCM vis = get_property ("explicitKeySignatureVisibility");
- if (gh_procedure_p (vis))
- item_->set_grob_property ("break-visibility",vis);
+ SCM vis = get_property ("explicitKeySignatureVisibility");
+ if (ly_is_procedure (vis))
+ item_->set_property ("break-visibility", vis);
}
-}
-
+}
bool
-Key_engraver::try_music (Music * req)
+Key_engraver::try_music (Music *ev)
{
- // if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req))
- if (req->is_mus_type ("key-change-event"))
+ if (ev->is_mus_type ("key-change-event"))
{
- if (!keyreq_)
+ /* do this only once, just to be on the safe side. */
+ if (!key_ev_)
{
- /*
- do this only once, just to be on the safe side.
- */
- keyreq_ = dynamic_cast<Key_change_req*> (req); // UGH.
- read_req (keyreq_);
+ key_ev_ = ev;
+ read_ev (key_ev_);
}
-
return true;
- }
- return false;
+ }
+ return false;
}
-
void
Key_engraver::acknowledge_grob (Grob_info info)
{
- if (Clef::has_interface (info.grob_))
+ if (Clef::has_interface (info.grob ()))
{
- SCM c = get_property ("createKeyOnClefChange");
+ SCM c = get_property ("createKeyOnClefChange");
if (to_boolean (c))
{
create_key (false);
}
}
- else if (Bar_line::has_interface (info.grob_)
- && gh_pair_p (get_property ("keySignature")))
+ else if (Bar_line::has_interface (info.grob ())
+ && scm_is_pair (get_property ("keySignature")))
{
create_key (true);
}
}
-
void
Key_engraver::process_music ()
{
- if (keyreq_ ||
- get_property ("lastKeySignature") != get_property ("keySignature"))
+ if (key_ev_
+ || get_property ("lastKeySignature") != get_property ("keySignature"))
create_key (false);
}
-
void
Key_engraver::stop_translation_timestep ()
{
- if (item_)
- {
- typeset_grob (item_);
- item_ = 0;
- }
+ item_ = 0;
+ context ()->set_property ("lastKeySignature", get_property ("keySignature"));
+ cancellation_ = 0;
+ key_ev_ = 0;
}
-
void
-Key_engraver::read_req (Key_change_req const * r)
+Key_engraver::read_ev (Music const *r)
{
- SCM p = r->get_mus_property ("pitch-alist");
- if (!gh_pair_p (p))
+ SCM p = r->get_property ("pitch-alist");
+ if (!scm_is_pair (p))
return;
SCM n = scm_list_copy (p);
SCM accs = SCM_EOL;
for (SCM s = get_property ("keyAccidentalOrder");
- gh_pair_p (s); s = ly_cdr (s))
+ scm_is_pair (s); s = scm_cdr (s))
{
- if (gh_pair_p (scm_member (ly_car (s), n)))
+ if (scm_is_pair (scm_member (scm_car (s), n)))
{
- accs = gh_cons (ly_car (s), accs);
- n = scm_delete_x (ly_car (s), n);
+ accs = scm_cons (scm_car (s), accs);
+ n = scm_delete_x (scm_car (s), n);
}
}
-
- for (SCM s = n ; gh_pair_p (s); s = ly_cdr (s))
- if (gh_scm2int (ly_cdar (s)))
- accs = gh_cons (ly_car (s), accs);
-
-#if 0
- daddy_trans_->set_property ("lastKeySignature",
- get_property ("keySignature"));
-#endif
-
- daddy_trans_->set_property ("keySignature", accs);
-}
+ for (SCM s = n; scm_is_pair (s); s = scm_cdr (s))
+ if (scm_to_int (scm_cdar (s)))
+ accs = scm_cons (scm_car (s), accs);
-void
-Key_engraver::start_translation_timestep ()
-{
- keyreq_ = 0;
- daddy_trans_->set_property ("lastKeySignature", get_property ("keySignature"));
+ context ()->set_property ("keySignature", accs);
+ context ()->set_property ("tonic",
+ r->get_property ("tonic"));
}
-
void
Key_engraver::initialize ()
{
- daddy_trans_->set_property ("keySignature", SCM_EOL);
- daddy_trans_->set_property ("lastKeySignature", SCM_EOL);
+ context ()->set_property ("keySignature", SCM_EOL);
+ context ()->set_property ("lastKeySignature", SCM_EOL);
+
+ Pitch p (0, 0, 0);
+ context ()->set_property ("tonic", p.smobbed_copy ());
}
+#include "translator.icc"
-ENTER_DESCRIPTION(Key_engraver,
-/* descr */ "",
-/* creats*/ "KeySignature",
-/* accepts */ "key-change-event",
-/* acks */ "bar-line-interface clef-interface",
-/* reads */ "keySignature lastKeySignature explicitKeySignatureVisibility createKeyOnClefChange keyAccidentalOrder keySignature",
-/* write */ "lastKeySignature");
+ADD_TRANSLATOR (Key_engraver,
+ /* descr */ "",
+ /* creats*/ "KeySignature",
+ /* accepts */ "key-change-event",
+ /* acks */ "bar-line-interface clef-interface",
+ /* reads */ "keySignature printKeyCancellation lastKeySignature explicitKeySignatureVisibility createKeyOnClefChange keyAccidentalOrder keySignature",
+ /* write */ "lastKeySignature tonic keySignature");
projects / lilypond.git / blobdiff