X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fkey-engraver.cc;h=3c9283b887b539066a0ac65c4ef4a93e96e6cea4;hb=81f1a254d08cbde22d0bac2b366e199a3efebd30;hp=8dc62ea994507c898853b3cdf4cb0f76c75d568d;hpb=4eb6f42fc6ca20d65c788a73eb78dfcc22ea0453;p=lilypond.git diff --git a/lily/key-engraver.cc b/lily/key-engraver.cc index 8dc62ea994..3c9283b887 100644 --- a/lily/key-engraver.cc +++ b/lily/key-engraver.cc @@ -3,46 +3,46 @@ source file of the GNU LilyPond music typesetter - (c) 1997--2001 Han-Wen Nienhuys + (c) 1997--2004 Han-Wen Nienhuys */ -#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 "context.hh" #include "engraver.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 read_ev (Music const * r); + Music *key_ev_; + Item *item_; + Item *cancellation_; 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 initialize (); virtual void finalize (); - virtual bool try_music (Music *req_l); + virtual bool try_music (Music *ev); virtual void stop_translation_timestep (); virtual void start_translation_timestep (); - virtual void create_grobs (); + virtual void process_music (); virtual void acknowledge_grob (Grob_info); }; @@ -50,68 +50,71 @@ protected: 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_ev_ = 0; + item_ = 0; + cancellation_ = 0; } + void Key_engraver::create_key (bool def) { - if (!item_p_) + if (!item_) { - item_p_ = new Item (get_property ("KeySignature")); + item_ = make_item ("KeySignature", key_ev_ ? key_ev_->self_scm () : SCM_EOL); - item_p_->set_grob_property ("c0-position", gh_int2scm (0)); - - // 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")); - - Staff_symbol_referencer::set_interface (item_p_); - Key_item::set_interface (item_p_); + item_->set_property ("c0-position", + get_property ("middleCPosition")); + 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")); - announce_grob (item_p_,keyreq_l_); + } + item_->set_property ("new-accidentals", key); } - if (!def) { SCM vis = get_property ("explicitKeySignatureVisibility"); - if (gh_procedure_p (vis)) - item_p_->set_grob_property ("visibility-lambda",vis); + if (ly_c_procedure_p (vis)) + item_->set_property ("break-visibility",vis); } } bool -Key_engraver::try_music (Music * req_l) +Key_engraver::try_music (Music * ev) { - if (Key_change_req *kc = dynamic_cast (req_l)) + if (ev->is_mus_type ("key-change-event")) { - if (keyreq_l_ && !keyreq_l_->equal_b (kc)) + /* do this only once, just to be on the safe side. */ + if (!key_ev_) { - kc->origin ()->warning (_ ("Conflicting key signatures found.")); - keyreq_l_->origin ()->warning (_ ("This was the other key definition.")); - return false; + key_ev_ = ev; + read_ev (key_ev_); } - keyreq_l_ = kc; - read_req (keyreq_l_); - return true; } return false; } + void 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)) @@ -119,73 +122,84 @@ Key_engraver::acknowledge_grob (Grob_info info) create_key (false); } } - else if (Bar::has_interface (info.elem_l_) - && gh_pair_p (get_property ("keySignature"))) + else if (Bar_line::has_interface (info.grob_) + && ly_c_pair_p (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_ev_ || + 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; } + 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 (!ly_c_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 = gh_cdr (s)) + ly_c_pair_p (s); s = ly_cdr (s)) { - if (gh_pair_p (scm_member (gh_car (s), n))) + if (ly_c_pair_p (scm_member (ly_car (s), n))) { - accs = gh_cons (gh_car (s), accs); - n = scm_delete_x (gh_car (s), n); + accs = scm_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 ; ly_c_pair_p (s); s = ly_cdr (s)) + if (scm_to_int (ly_cdar (s))) + accs = scm_cons (ly_car (s), accs); - old_accs_ = get_property ("keySignature"); - daddy_trans_l_->set_property ("keySignature", accs); + context ()->set_property ("keySignature", accs); + context ()->set_property ("tonic" , + r->get_property ("tonic")); } + void Key_engraver::start_translation_timestep () { - keyreq_l_ = 0; - old_accs_ = get_property ("keySignature"); + key_ev_ = 0; } + 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); +ENTER_DESCRIPTION (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");