source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "key-item.hh"
-#include "command-request.hh"
-#include "musical-request.hh"
+
+
+#include "event.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 "engraver.hh"
-#include "musical-pitch.hh"
+#include "pitch.hh"
#include "protected-scm.hh"
#include "clef.hh"
+/*
+ TODO: The representation of key sigs is all fucked.
+ */
+
/**
Make the key signature.
*/
class Key_engraver : public Engraver
{
- void create_key(bool);
- void read_req (Key_change_req const * r);
+ void create_key (bool);
+ void read_ev (Key_change_ev const * r);
+ Key_change_ev * key_ev_;
+ Item * item_;
public:
- Key_engraver();
-
- VIRTUAL_COPY_CONS(Translator);
+ TRANSLATOR_DECLARATIONS(Key_engraver);
- Key_change_req * keyreq_l_;
- Item * item_p_;
- Protected_scm old_accs_; // ugh. -> property
-
protected:
- virtual void do_creation_processing();
- virtual void do_removal_processing ();
- virtual bool do_try_music (Music *req_l);
- virtual void do_process_music();
- virtual void do_pre_move_processing();
- virtual void do_post_move_processing();
- virtual void acknowledge_element (Score_element_info);
+ virtual void initialize ();
+ virtual void finalize ();
+ virtual bool try_music (Music *ev);
+ virtual void stop_translation_timestep ();
+ virtual void start_translation_timestep ();
+ virtual void process_music ();
+ virtual void acknowledge_grob (Grob_info);
};
void
-Key_engraver::do_removal_processing ()
+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_ev_ = 0;
+ item_ = 0;
}
+
void
Key_engraver::create_key (bool def)
{
- if (!item_p_)
+ if (!item_)
{
- item_p_ = new Item (get_property ("KeySignature"));
-
- item_p_->set_elt_property ("c0-position", gh_int2scm (0));
+ item_ = make_item ("KeySignature");
+ item_->set_grob_property ("c0-position",
+ get_property ("centralCPosition"));
+
// todo: put this in basic props.
- item_p_->set_elt_property ("old-accidentals", old_accs_);
- item_p_->set_elt_property ("new-accidentals", get_property ("keySignature"));
+ item_->set_grob_property ("old-accidentals", get_property ("lastKeySignature"));
+ item_->set_grob_property ("new-accidentals", 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_elt_property ("multi-octave", gh_bool2scm (multi));
-
- announce_element (item_p_,keyreq_l_);
+ announce_grob(item_, key_ev_ ? key_ev_->self_scm() : SCM_EOL);
}
-
if (!def)
{
SCM vis = get_property ("explicitKeySignatureVisibility");
if (gh_procedure_p (vis))
- item_p_->set_elt_property ("visibility-lambda",vis);
+ item_->set_grob_property ("break-visibility",vis);
}
}
bool
-Key_engraver::do_try_music (Music * req_l)
+Key_engraver::try_music (Music * ev)
{
- if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req_l))
+ // if (Key_change_ev *kc = dynamic_cast <Key_change_ev *> (ev))
+ if (ev->is_mus_type ("key-change-event"))
{
- if (keyreq_l_)
- warning (_ ("FIXME: key change merge"));
- keyreq_l_ = kc;
- read_req (keyreq_l_);
+ if (!key_ev_)
+ {
+ /*
+ do this only once, just to be on the safe side.
+ */
+ key_ev_ = dynamic_cast<Key_change_ev*> (ev); // UGH.
+ read_ev (key_ev_);
+ }
+
return true;
}
return false;
}
+
void
-Key_engraver::acknowledge_element (Score_element_info info)
+Key_engraver::acknowledge_grob (Grob_info info)
{
- if (Clef::has_interface (info.elem_l_))
+ if (Clef::has_interface (info.grob_))
{
SCM c = get_property ("createKeyOnClefChange");
if (to_boolean (c))
create_key (false);
}
}
- else if (Bar::has_interface (info.elem_l_)
+ else if (Bar_line::has_interface (info.grob_)
&& gh_pair_p (get_property ("keySignature")))
{
create_key (true);
}
-
}
+
void
-Key_engraver::do_process_music ()
+Key_engraver::process_music ()
{
- if (keyreq_l_ || old_accs_ != get_property ("keySignature"))
- {
- create_key (false);
- }
+ if (key_ev_ ||
+ get_property ("lastKeySignature") != get_property ("keySignature"))
+ create_key (false);
}
+
void
-Key_engraver::do_pre_move_processing ()
-{
- if (item_p_)
+Key_engraver::stop_translation_timestep ()
+{
+ if (item_)
{
- typeset_element (item_p_);
- item_p_ = 0;
+ typeset_grob (item_);
+ item_ = 0;
}
}
+
void
-Key_engraver::read_req (Key_change_req const * r)
+Key_engraver::read_ev (Key_change_ev const * r)
{
SCM p = r->get_mus_property ("pitch-alist");
if (!gh_pair_p (p))
SCM n = scm_list_copy (p);
SCM accs = SCM_EOL;
for (SCM s = get_property ("keyAccidentalOrder");
- gh_pair_p (s); s = gh_cdr (s))
+ gh_pair_p (s); s = ly_cdr (s))
{
- if (gh_pair_p (scm_member (gh_car (s), n)))
+ if (gh_pair_p (scm_member (ly_car (s), n)))
{
- accs = gh_cons (gh_car (s), accs);
- n = scm_delete_x (gh_car (s), n);
+ accs = gh_cons (ly_car (s), accs);
+ n = scm_delete_x (ly_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);
+
+ 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);
- old_accs_ = get_property ("keySignature");
- daddy_trans_l_->set_property ("keySignature", accs);
+ daddy_trans_->set_property ("keySignature", accs);
+ daddy_trans_->set_property ("tonic" ,
+ r->get_mus_property ("tonic"));
}
+
void
-Key_engraver::do_post_move_processing ()
+Key_engraver::start_translation_timestep ()
{
- keyreq_l_ = 0;
- old_accs_ = get_property ("keySignature");
+ key_ev_ = 0;
+ daddy_trans_->set_property ("lastKeySignature", get_property ("keySignature"));
}
+
void
-Key_engraver::do_creation_processing ()
+Key_engraver::initialize ()
{
- daddy_trans_l_->set_property ("keySignature", SCM_EOL);
- old_accs_ = SCM_EOL;
-}
+ daddy_trans_->set_property ("keySignature", SCM_EOL);
+ daddy_trans_->set_property ("lastKeySignature", SCM_EOL);
+
+ Pitch p(0,0,0);
+ daddy_trans_->set_property ("tonic", p.smobbed_copy ());
+}
-ADD_THIS_TRANSLATOR (Key_engraver);
+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 tonic keySignature");
projects / lilypond.git / blobdiff