source file of the GNU LilyPond music typesetter
- (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
+#include "context.hh"
#include "engraver.hh"
-#include "event.hh"
#include "item.hh"
-#include "context.hh"
-#include "font-metric.hh"
#include "note-head.hh"
+#include "stream-event.hh"
+#include "international.hh"
+
+#include "translator.icc"
/**
- Generate texts for lyric syllables. We only do one lyric at a time.
+ Generate texts for lyric syllables. We only do one lyric at a time.
Multiple copies of this engraver should be used to do multiple voices.
- */
-class Lyric_engraver : public Engraver
+*/
+class Lyric_engraver : public Engraver
{
protected:
- virtual void stop_translation_timestep ();
- virtual bool try_music (Music *);
- virtual void process_music ();
-
+ void stop_translation_timestep ();
+ void process_music ();
+ DECLARE_TRANSLATOR_LISTENER (lyric);
+
public:
TRANSLATOR_DECLARATIONS (Lyric_engraver);
+
private:
- Music * event_;
- Item* text_;
+ Stream_event *event_;
+ Item *text_;
+ Item *last_text_;
- Context* get_voice_context ();
+ Context *get_voice_context ();
};
Lyric_engraver::Lyric_engraver ()
{
- text_ =0;
- event_ =0;
+ text_ = 0;
+ last_text_ = 0;
+ event_ = 0;
}
-bool
-Lyric_engraver::try_music (Music*r)
+IMPLEMENT_TRANSLATOR_LISTENER (Lyric_engraver, lyric);
+void
+Lyric_engraver::listen_lyric (Stream_event *ev)
{
- if (r->is_mus_type ("lyric-event"))
- {
- if (event_)
- return false;
- event_ =r;
- return true;
- }
- return false;
+ ASSIGN_EVENT_ONCE (event_, ev);
}
void
{
if (event_)
{
- text_= make_item ("LyricText");
-
- text_->set_property ("text", event_->get_property ("text"));
- announce_grob (text_, event_->self_scm ());
+ SCM text = event_->get_property ("text");
+
+ if (ly_is_equal (text, scm_from_locale_string (" ")))
+ {
+ if (last_text_)
+ last_text_->set_property ("self-alignment-X", scm_from_int (LEFT));
+ }
+ else
+ {
+ text_ = make_item ("LyricText", event_->self_scm ());
+ }
}
}
-
-Context*
+Context *
get_voice_to_lyrics (Context *lyrics)
{
SCM avc = lyrics->get_property ("associatedVoiceContext");
- if (Context *c = unsmob_context (avc))
+ if (Context *c = unsmob_context (avc))
return c;
- SCM voice = lyrics->get_property ("associatedVoice");
- String nm = lyrics->id_string_;
+ SCM voice_name = lyrics->get_property ("associatedVoice");
+ string nm = lyrics->id_string ();
- if (gh_string_p (voice))
- nm = ly_scm2string (voice);
+ if (scm_is_string (voice_name))
+ nm = ly_scm2string (voice_name);
+ else if (nm == "")
+ {
+ return 0;
+ }
else
{
- int idx = nm.index_last ('-');
- if (idx >= 0)
- nm = nm.left_string (idx);
+ ssize idx = nm.rfind ('-');
+ if (idx != NPOS)
+ nm = nm.substr (0, idx);
}
- Context *c = lyrics->find_existing_context (ly_symbol2scm ("Voice"), nm);
+ Context *parent = lyrics;
+ Context *voice = 0;
+ while (parent && !voice)
+ {
+ voice = find_context_below (parent, ly_symbol2scm ("Voice"), nm);
+ parent = parent->get_parent_context ();
+ }
- if (c)
- return c;
+ if (voice)
+ return voice;
- return lyrics->find_existing_context (ly_symbol2scm ("Voice"), "");
+ parent = lyrics;
+ voice = 0;
+ while (parent && !voice)
+ {
+ voice = find_context_below (parent, ly_symbol2scm ("Voice"), "");
+ parent = parent->get_parent_context ();
+ }
+
+ return voice;
}
Grob *
-get_current_note_head (Context * voice)
+get_current_note_head (Context *voice)
{
+ Moment now = voice->now_mom ();
for (SCM s = voice->get_property ("busyGrobs");
- gh_pair_p (s); s = gh_cdr (s))
+ scm_is_pair (s); s = scm_cdr (s))
{
- Item*g = dynamic_cast<Item*> (unsmob_grob (gh_cdar (s)));
-
- if (g && !g->get_column ()
+ Grob *g = unsmob_grob (scm_cdar (s));;
+ Moment *end_mom = unsmob_moment (scm_caar (s));
+ if (!end_mom || !g)
+ {
+ programming_error ("busyGrobs invalid");
+ continue;
+ }
+
+ if (end_mom->main_part_ > now.main_part_
+ && dynamic_cast<Item *> (g)
&& Note_head::has_interface (g))
return g;
}
-
- return 0;
+
+ return 0;
}
void
{
if (text_)
{
- Context * voice = get_voice_to_lyrics (daddy_context_);
-
+ Context *voice = get_voice_to_lyrics (context ());
+
if (voice)
{
Grob *head = get_current_note_head (voice);
{
text_->set_parent (head, X_AXIS);
if (melisma_busy (voice))
- text_->set_property ("self-alignment-X", gh_int2scm (LEFT));
+ text_->set_property ("self-alignment-X", get_property("lyricMelismaAlignment"));
+ }
+ else
+ {
+ text_->warning (_ ("Lyric syllable does not have note. Use \\lyricsto or associatedVoice."));
+ text_->set_property ("X-offset", scm_from_int (0));
}
}
-
- typeset_grob (text_);
- text_ =0;
+
+ last_text_ = text_;
+ text_ = 0;
}
- event_ =0;
+ event_ = 0;
}
+ADD_TRANSLATOR (Lyric_engraver,
+ /* doc */
+ "Engrave text for lyrics.",
+
+ /* create */
+ "LyricText ",
+ /* read */
+ "lyricMelismaAlignment ",
-ENTER_DESCRIPTION (Lyric_engraver,
-/* descr */ "",
-/* creats*/ "",
-/* accepts */ "lyric-event",
-/* acks */ "",
-/* reads */ "",
-/* write */ "");
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff