/*
- key-engraver.cc -- implement Key_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
-#include "bar-line.hh"
#include "clef.hh"
#include "context.hh"
#include "engraver.hh"
+#include "international.hh"
#include "item.hh"
#include "pitch.hh"
#include "protected-scm.hh"
void stop_translation_timestep ();
void process_music ();
- DECLARE_TRANSLATOR_LISTENER (key_change);
- DECLARE_ACKNOWLEDGER (clef);
- DECLARE_ACKNOWLEDGER (bar_line);
+ void listen_key_change (Stream_event *);
+ void acknowledge_clef (Grob_info);
+ void acknowledge_bar_line (Grob_info);
};
void
{
}
-Key_engraver::Key_engraver ()
+Key_engraver::Key_engraver (Context *c)
+ : Engraver (c)
{
key_event_ = 0;
item_ = 0;
cancellation_ = 0;
}
-
void
Key_engraver::create_key (bool is_default)
{
if (!item_)
{
item_ = make_item ("KeySignature",
- key_event_ ? key_event_->self_scm () : SCM_EOL);
+ key_event_ ? key_event_->self_scm () : SCM_EOL);
+ /* Use middleCClefPosition rather than middleCPosition, because cue
+ * notes with a different clef will modify middleCPosition. The
+ * Key signature, however, should still be printed at the original
+ * position. */
item_->set_property ("c0-position",
- get_property ("middleCPosition"));
+ get_property ("middleCClefPosition"));
- SCM last = get_property ("lastKeySignature");
- SCM key = get_property ("keySignature");
- bool extranatural = to_boolean (get_property ("extraNatural"));
+ SCM last = get_property ("lastKeyAlterations");
+ SCM key = get_property ("keyAlterations");
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))
- {
- SCM new_alter_pair = scm_assoc (scm_caar (s), key);
- Rational old_alter = robust_scm2rational (scm_cdar (s), 0);
- if (new_alter_pair == SCM_BOOL_F
- || extranatural
- && (ly_scm2rational (scm_cdr (new_alter_pair)) - old_alter)*old_alter < Rational (0))
- {
- *tail = scm_cons (scm_car (s), *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);
+ || scm_is_null (key))
+ && !scm_is_eq (last, key))
+ {
+ SCM restore = SCM_EOL;
+ for (SCM s = last; scm_is_pair (s); s = scm_cdr (s))
+ {
+ SCM new_alter_pair = scm_assoc (scm_caar (s), key);
+ Rational old_alter = robust_scm2rational (scm_cdar (s), 0);
+ if (scm_is_false (new_alter_pair)
+ || ((ly_scm2rational (scm_cdr (new_alter_pair)) - old_alter) * old_alter
+ < Rational (0)))
+ {
+ restore = scm_cons (scm_car (s), restore);
+ }
+ }
+
+ 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 ("middleCClefPosition"));
+ }
+ }
+
+ item_->set_property ("alteration-alist", scm_reverse (key));
}
if (!is_default)
{
SCM visibility = get_property ("explicitKeySignatureVisibility");
item_->set_property ("break-visibility", visibility);
+ item_->set_property ("non-default", SCM_BOOL_T);
}
}
-IMPLEMENT_TRANSLATOR_LISTENER (Key_engraver, key_change);
void
Key_engraver::listen_key_change (Stream_event *ev)
{
}
void
-Key_engraver::acknowledge_clef (Grob_info info)
+Key_engraver::acknowledge_clef (Grob_info /* info */)
{
- (void)info;
SCM c = get_property ("createKeyOnClefChange");
if (to_boolean (c))
create_key (false);
}
void
-Key_engraver::acknowledge_bar_line (Grob_info info)
+Key_engraver::acknowledge_bar_line (Grob_info /* info */)
{
- (void)info;
- if (scm_is_pair (get_property ("keySignature")))
- create_key (true);
+ create_key (true);
}
void
Key_engraver::process_music ()
{
if (key_event_
- || get_property ("lastKeySignature") != get_property ("keySignature"))
+ || !scm_is_eq (get_property ("lastKeyAlterations"),
+ get_property ("keyAlterations")))
create_key (false);
}
Key_engraver::stop_translation_timestep ()
{
item_ = 0;
- context ()->set_property ("lastKeySignature", get_property ("keySignature"));
+ context ()->set_property ("lastKeyAlterations", get_property ("keyAlterations"));
cancellation_ = 0;
key_event_ = 0;
}
scm_is_pair (s) && scm_is_pair (alist); s = scm_cdr (s))
{
SCM head = scm_member (scm_car (s), alist);
-
+
if (scm_is_pair (head))
- {
- accs = scm_cons (scm_car (head), accs);
- alist = scm_delete_x (scm_car (head), alist);
- }
+ {
+ accs = scm_cons (scm_car (head), accs);
+ alist = scm_delete_x (scm_car (head), alist);
+ }
}
if (scm_is_pair (alist))
{
bool warn = false;
for (SCM s = alist; scm_is_pair (s); s = scm_cdr (s))
- if (ly_scm2rational (scm_cdar (s)))
- {
- warn = true;
- accs = scm_cons (scm_car (s), accs);
- }
+ if (ly_scm2rational (scm_cdar (s)))
+ {
+ warn = true;
+ accs = scm_cons (scm_car (s), accs);
+ }
if (warn)
- r->origin ()->warning ("No ordering for key signature alterations");
+ r->origin ()->warning (_ ("Incomplete keyAlterationOrder for key signature"));
}
-
- context ()->set_property ("keySignature", accs);
+
+ context ()->set_property ("keyAlterations", scm_reverse_x (accs, SCM_EOL));
context ()->set_property ("tonic",
- r->get_property ("tonic"));
+ r->get_property ("tonic"));
}
void
Key_engraver::initialize ()
{
- context ()->set_property ("keySignature", SCM_EOL);
- context ()->set_property ("lastKeySignature", SCM_EOL);
+ context ()->set_property ("keyAlterations", SCM_EOL);
+ context ()->set_property ("lastKeyAlterations", SCM_EOL);
- Pitch p (0, 0, 0);
+ Pitch p;
context ()->set_property ("tonic", p.smobbed_copy ());
}
-ADD_ACKNOWLEDGER (Key_engraver, clef);
-ADD_ACKNOWLEDGER (Key_engraver, bar_line);
+
+void
+Key_engraver::boot ()
+{
+ ADD_LISTENER (Key_engraver, key_change);
+ ADD_ACKNOWLEDGER (Key_engraver, clef);
+ ADD_ACKNOWLEDGER (Key_engraver, bar_line);
+}
ADD_TRANSLATOR (Key_engraver,
- /* doc */
- "Engrave a key signature.",
-
- /* create */
- "KeySignature ",
-
- /* read */
- "createKeyOnClefChange "
- "explicitKeySignatureVisibility "
- "extraNatural "
- "keyAlterationOrder "
- "keySignature "
- "lastKeySignature "
- "printKeyCancellation ",
-
- /* write */
- "keySignature "
- "lastKeySignature "
- "tonic "
- );
+ /* doc */
+ "Engrave a key signature.",
+
+ /* create */
+ "KeyCancellation "
+ "KeySignature ",
+
+ /* read */
+ "createKeyOnClefChange "
+ "explicitKeySignatureVisibility "
+ "extraNatural "
+ "keyAlterationOrder "
+ "keyAlterations "
+ "lastKeyAlterations "
+ "printKeyCancellation "
+ "middleCClefPosition ",
+
+ /* write */
+ "keyAlterations "
+ "lastKeyAlterations "
+ "tonic "
+ );
projects / lilypond.git / blobdiff