source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "key-engraver.hh"
#include "key-item.hh"
#include "command-request.hh"
-#include "local-key-engraver.hh"
#include "musical-request.hh"
-#include "local-key-item.hh"
+#include "item.hh"
#include "bar.hh"
-#include "time-description.hh"
+#include "timing-translator.hh"
+#include "staff-symbol-referencer.hh"
+#include "translator-group.hh"
+#include "engraver.hh"
+#include "pitch.hh"
+#include "protected-scm.hh"
+#include "clef.hh"
+
+/**
+ 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_l_;
+ Item * item_p_;
-Key_engraver::Key_engraver ()
+public:
+ 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);
+};
+
+
+void
+Key_engraver::finalize ()
{
- item_p_ = 0;
- do_post_move_processing ();
}
-bool
-Key_engraver::key_changed_b () const
+
+Key_engraver::Key_engraver ()
{
- return keyreq_l_ ;
+ keyreq_l_ = 0;
+ item_p_ = 0;
}
+
void
-Key_engraver::create_key ()
+Key_engraver::create_key (bool def)
{
if (!item_p_)
{
- item_p_ = new Key_item;
- item_p_->set_elt_property (break_priority_scm_sym, gh_int2scm(-1)); // ugh
- item_p_->multi_octave_b_ = key_.multi_octave_b_;
- announce_element (Score_element_info (item_p_,keyreq_l_));
+ item_p_ = new Item (get_property ("KeySignature"));
+
+ item_p_->set_grob_property ("c0-position",
+ get_property ("centralCPosition"));
+ // todo: put this in basic props.
+ item_p_->set_grob_property ("old-accidentals", get_property ("lastKeySignature"));
+ item_p_->set_grob_property ("new-accidentals", get_property ("keySignature"));
- for (int i = 0; i < accidental_idx_arr_.size(); i++)
- {
- Musical_pitch m_l =accidental_idx_arr_[i];
- int a =m_l.accidental_i_;
- if (key_.multi_octave_b_)
- item_p_->add (m_l.steps (), a);
- else
- item_p_->add (m_l.notename_i_, a);
- }
+ Staff_symbol_referencer::set_interface (item_p_);
+ Key_item::set_interface (item_p_);
+ announce_grob (item_p_,keyreq_l_);
+ }
- for (int i = 0 ; i< old_accidental_idx_arr_.size(); i++)
- {
- Musical_pitch m_l =old_accidental_idx_arr_[i];
- int a =m_l.accidental_i_;
- if (key_.multi_octave_b_)
- item_p_->add_old (m_l.steps (), a);
- else
- item_p_->add_old (m_l.notename_i_, a);
- }
+ if (!def)
+ {
+ SCM vis = get_property ("explicitKeySignatureVisibility");
+ if (gh_procedure_p (vis))
+ item_p_->set_grob_property ("visibility-lambda",vis);
}
}
bool
-Key_engraver::do_try_music (Music * req_l)
+Key_engraver::try_music (Music * req_l)
{
if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req_l))
{
- if (keyreq_l_)
- warning ("Fixme: key change merge.");
+ if (keyreq_l_ && !keyreq_l_->equal_b (kc))
+ {
+ kc->origin ()->warning (_ ("Conflicting key signatures found."));
+ keyreq_l_->origin ()->warning (_ ("This was the other key definition."));
+ return false;
+ }
keyreq_l_ = kc;
read_req (keyreq_l_);
+
return true;
}
return false;
}
+
void
-Key_engraver::acknowledge_element (Score_element_info info)
+Key_engraver::acknowledge_grob (Grob_info info)
{
- if (dynamic_cast <Clef_change_req *> (info.req_l_))
- {
- int i= get_property ("createKeyOnClefChange", 0).length_i ();
- if (i)
- create_key ();
- }
- else if (dynamic_cast<Bar *> (info.elem_l_)
- && accidental_idx_arr_.size ())
+ if (Clef::has_interface (info.grob_l_))
{
- bool def = (!item_p_);
- create_key ();
- if (def)
+ SCM c = get_property ("createKeyOnClefChange");
+ if (to_boolean (c))
{
- item_p_->set_elt_property (visibility_lambda_scm_sym,
- gh_eval_str ("postbreak_only_visibility"));
+ create_key (false);
}
}
-
+ else if (Bar::has_interface (info.grob_l_)
+ && gh_pair_p (get_property ("keySignature")))
+ {
+ create_key (true);
+ }
}
+
void
-Key_engraver::do_process_requests ()
+Key_engraver::create_grobs ()
{
- if (keyreq_l_)
- {
- create_key ();
- }
+ if (keyreq_l_ ||
+ get_property ("lastKeySignature") != get_property ("keySignature"))
+ create_key (false);
}
+
void
-Key_engraver::do_pre_move_processing ()
-{
+Key_engraver::stop_translation_timestep ()
+{
if (item_p_)
{
- typeset_element (item_p_);
+ typeset_grob (item_p_);
item_p_ = 0;
}
}
-/*
- TODO Slightly hairy.
- */
void
Key_engraver::read_req (Key_change_req const * r)
{
- old_accidental_idx_arr_ = accidental_idx_arr_;
- key_.clear ();
- Scalar prop = get_property ("keyoctaviation", 0);
- if (prop.length_i () > 0)
- {
- key_.multi_octave_b_ = ! prop.to_bool ();
- }
-
- accidental_idx_arr_.clear ();
-
- if (r->key_.ordinary_key_b_)
- {
- int no_of_acc = r->key_.ordinary_accidentals_i ();
-
- // Hmm, can't these be handled/constructed by Key_change_req?
- if (no_of_acc < 0)
- {
- int accidental = 6 ; // First accidental: bes
- for ( ; no_of_acc < 0 ; no_of_acc++ )
- {
- Musical_pitch m;
- m.accidental_i_ = -1;
- m.notename_i_ = accidental;
- if (key_.multi_octave_b_)
- key_.set (m);
- else
- key_.set (m.notename_i_, m.accidental_i_);
- accidental_idx_arr_.push (m);
-
- accidental = (accidental + 3) % 7 ;
- }
- }
- else
- {
- int accidental = 3 ; // First accidental: fis
- for ( ; no_of_acc > 0 ; no_of_acc-- )
- {
- Musical_pitch m;
- m.accidental_i_ = 1;
- m.notename_i_ = accidental;
- if (key_.multi_octave_b_)
- key_.set (m);
- else
- key_.set (m.notename_i_, m.accidental_i_);
- accidental_idx_arr_.push (m);
-
- accidental = (accidental + 4) % 7 ;
- }
- }
- }
- else // Special key
+ SCM p = r->get_mus_property ("pitch-alist");
+ if (!gh_pair_p (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))
{
- for (int i = 0; i < r->key_.pitch_arr_.size (); i ++)
+ if (gh_pair_p (scm_member (ly_car (s), n)))
{
- Musical_pitch m_l =r->key_.pitch_arr_[i];
- if (key_.multi_octave_b_)
- key_.set (m_l);
- else
- key_.set (m_l.notename_i_, m_l.accidental_i_);
-
- accidental_idx_arr_.push (m_l);
+ accs = gh_cons (ly_car (s), accs);
+ n = scm_delete_x (ly_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);
+
+ daddy_trans_l_->set_property ("lastKeySignature",
+ get_property ("keySignature"));
+ daddy_trans_l_->set_property ("keySignature", accs);
}
+
void
-Key_engraver::do_post_move_processing ()
+Key_engraver::start_translation_timestep ()
{
keyreq_l_ = 0;
- old_accidental_idx_arr_.clear ();
+ daddy_trans_l_->set_property ("lastKeySignature", get_property ("keySignature"));
}
+void
+Key_engraver::initialize ()
+{
+ daddy_trans_l_->set_property ("keySignature", SCM_EOL);
+ daddy_trans_l_->set_property ("lastKeySignature", SCM_EOL);
+}
-ADD_THIS_TRANSLATOR (Key_engraver);
+ENTER_DESCRIPTION(Key_engraver,
+/* descr */ "",
+/* creats*/ "KeySignature",
+/* acks */ "bar-line-interface clef-interface",
+/* reads */ "keySignature lastKeySignature explicitKeySignatureVisibility createKeyOnClefChange keyAccidentalOrder keySignature",
+/* write */ "lastKeySignature");
projects / lilypond.git / blobdiff