source file of the GNU LilyPond music typesetter
- (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
- */
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
-#include "key-item.hh"
-#include "command-request.hh"
-#include "musical-request.hh"
#include "item.hh"
-#include "bar.hh"
-#include "timing-translator.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"
+
+#include "translator.icc"
+
+/*
+ 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);
+ void read_event (Music const *r);
+ Music *key_event_;
+ Item *item_;
+ Item *cancellation_;
public:
- Key_engraver ();
-
- VIRTUAL_COPY_CONS (Translator);
-
- Key_change_req * keyreq_l_;
- Item * item_p_;
- Protected_scm old_accs_; // ugh. -> property
-
+ TRANSLATOR_DECLARATIONS (Key_engraver);
+
protected:
virtual void initialize ();
virtual void finalize ();
- virtual bool try_music (Music *req_l);
- virtual void stop_translation_timestep ();
- virtual void start_translation_timestep ();
- virtual void create_grobs ();
- virtual void acknowledge_grob (Grob_info);
-};
+ virtual bool try_music (Music *event);
+ void stop_translation_timestep ();
+ void process_music ();
+ DECLARE_ACKNOWLEDGER (clef);
+ DECLARE_ACKNOWLEDGER (bar_line);
+};
void
Key_engraver::finalize ()
{
- old_accs_ = SCM_EOL; // unprotect can not be called from dtor.
}
Key_engraver::Key_engraver ()
{
- keyreq_l_ = 0;
- item_p_ = 0;
+ key_event_ = 0;
+ item_ = 0;
+ cancellation_ = 0;
}
void
-Key_engraver::create_key (bool def)
+Key_engraver::create_key (bool is_default)
{
- if (!item_p_)
+ if (!item_)
{
- item_p_ = new Item (get_property ("KeySignature"));
+ item_ = make_item ("KeySignature",
+ key_event_ ? key_event_->self_scm () : SCM_EOL);
- item_p_->set_grob_property ("c0-position", gh_int2scm (0));
+ item_->set_property ("c0-position",
+ get_property ("middleCPosition"));
- // todo: put this in basic props.
- item_p_->set_grob_property ("old-accidentals", old_accs_);
- item_p_->set_grob_property ("new-accidentals", get_property ("keySignature"));
+ SCM last = get_property ("lastKeySignature");
+ SCM key = get_property ("keySignature");
- Staff_symbol_referencer::set_interface (item_p_);
- Key_item::set_interface (item_p_);
-
- SCM prop = get_property ("keyOctaviation");
- bool multi = to_boolean (prop);
-
- if (multi)
- item_p_->set_grob_property ("multi-octave", gh_bool2scm (multi));
-
- announce_grob (item_p_,keyreq_l_);
+ if ((to_boolean (get_property ("printKeyCancellation"))
+ || key == SCM_EOL)
+ && !scm_is_eq (last, key))
+ {
+ SCM restore = SCM_EOL;
+ SCM *tail = &restore;
+ for (SCM s = last; scm_is_pair (s); s = scm_cdr (s))
+ {
+ if (scm_assoc (scm_caar (s), key) == SCM_BOOL_F)
+ {
+ *tail = scm_acons (scm_caar (s),
+ scm_from_int (0), *tail);
+ tail = SCM_CDRLOC (*tail);
+ }
+ }
+
+ if (scm_is_pair (restore))
+ {
+ cancellation_ = make_item ("KeyCancellation",
+ key_event_
+ ? key_event_->self_scm () : SCM_EOL);
+
+ cancellation_->set_property ("alteration-alist", restore);
+ cancellation_->set_property ("c0-position",
+ get_property ("middleCPosition"));
+ }
+ }
+ item_->set_property ("alteration-alist", key);
}
-
- if (!def)
+ if (!is_default)
{
- SCM vis = get_property ("explicitKeySignatureVisibility");
- if (gh_procedure_p (vis))
- item_p_->set_grob_property ("visibility-lambda",vis);
+ SCM visibility = get_property ("explicitKeySignatureVisibility");
+ item_->set_property ("break-visibility", visibility);
+ if (cancellation_)
+ cancellation_->set_property ("break-visibility", visibility);
}
-}
-
+}
bool
-Key_engraver::try_music (Music * req_l)
+Key_engraver::try_music (Music *event)
{
- if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req_l))
+ if (event->is_mus_type ("key-change-event"))
{
- if (keyreq_l_)
- warning (_ ("FIXME: key change merge"));
- keyreq_l_ = kc;
- read_req (keyreq_l_);
+ /* do this only once, just to be on the safe side. */
+ if (!key_event_)
+ {
+ key_event_ = event;
+ read_event (key_event_);
+ }
return true;
- }
- return false;
+ }
+ return false;
}
void
-Key_engraver::acknowledge_grob (Grob_info info)
+Key_engraver::acknowledge_clef (Grob_info info)
{
- if (Clef::has_interface (info.elem_l_))
- {
- SCM c = get_property ("createKeyOnClefChange");
- if (to_boolean (c))
- {
- create_key (false);
- }
- }
- else if (Bar::has_interface (info.elem_l_)
- && gh_pair_p (get_property ("keySignature")))
- {
- create_key (true);
- }
+ (void)info;
+ SCM c = get_property ("createKeyOnClefChange");
+ if (to_boolean (c))
+ create_key (false);
+}
+void
+Key_engraver::acknowledge_bar_line (Grob_info info)
+{
+ (void)info;
+ if (scm_is_pair (get_property ("keySignature")))
+ create_key (true);
}
void
-Key_engraver::create_grobs ()
+Key_engraver::process_music ()
{
- if (keyreq_l_ || old_accs_ != get_property ("keySignature"))
- {
- create_key (false);
- }
+ if (key_event_
+ || get_property ("lastKeySignature") != get_property ("keySignature"))
+ create_key (false);
}
void
Key_engraver::stop_translation_timestep ()
-{
- if (item_p_)
- {
- typeset_grob (item_p_);
- item_p_ = 0;
- }
+{
+ item_ = 0;
+ context ()->set_property ("lastKeySignature", get_property ("keySignature"));
+ cancellation_ = 0;
+ key_event_ = 0;
}
void
-Key_engraver::read_req (Key_change_req const * r)
+Key_engraver::read_event (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 = gh_cdr (s))
+ for (SCM s = get_property ("keyAlterationOrder");
+ scm_is_pair (s); s = scm_cdr (s))
{
- if (gh_pair_p (scm_member (gh_car (s), n)))
+ if (scm_is_pair (scm_member (scm_car (s), n)))
{
- accs = gh_cons (gh_car (s), accs);
- n = scm_delete_x (gh_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 = gh_cdr (s))
- if (gh_scm2int (gh_cdar (s)))
- accs = gh_cons (gh_car (s), accs);
- old_accs_ = get_property ("keySignature");
- daddy_trans_l_->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_l_ = 0;
- old_accs_ = get_property ("keySignature");
+ context ()->set_property ("keySignature", accs);
+ context ()->set_property ("tonic",
+ r->get_property ("tonic"));
}
void
Key_engraver::initialize ()
{
- daddy_trans_l_->set_property ("keySignature", SCM_EOL);
- old_accs_ = 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 ());
+}
-ADD_THIS_TRANSLATOR (Key_engraver);
-
+ADD_ACKNOWLEDGER (Key_engraver, clef);
+ADD_ACKNOWLEDGER (Key_engraver, bar_line);
+
+ADD_TRANSLATOR (Key_engraver,
+ /* doc */ "",
+ /* create */ "KeySignature",
+ /* accept */ "key-change-event",
+
+ /* read */
+ "createKeyOnClefChange "
+ "explicitKeySignatureVisibility "
+ "keyAlterationOrder "
+ "keySignature "
+ "keySignature "
+ "lastKeySignature "
+ "printKeyCancellation "
+ ,
+
+ /* write */
+ "keySignature "
+ "lastKeySignature "
+ "tonic ")
projects / lilypond.git / blobdiff