2 lyric-number-engraver.cc -- implement Stanza_number_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 2000--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>, Glen Prideaux <glenprideaux@iname.com>
10 #include "side-position-interface.hh"
12 class Stanza_number_engraver : public Engraver
18 TRANSLATOR_DECLARATIONS (Stanza_number_engraver);
19 void process_music ();
20 virtual void derived_mark () const;
21 void stop_translation_timestep ();
22 DECLARE_ACKNOWLEDGER (lyric_syllable);
26 Stanza_number_engraver::derived_mark () const
28 scm_gc_mark (last_stanza_);
32 TODO: should make engraver that collects all the stanzas on a higher
33 level, and then groups them to the side. Stanza numbers should be
37 Stanza_number_engraver::Stanza_number_engraver ()
40 last_stanza_ = SCM_EOL;
44 Stanza_number_engraver::process_music ()
46 SCM stanza = get_property ("stanza");
48 if (scm_is_string (stanza) && stanza != last_stanza_)
50 last_stanza_ = stanza;
52 text_ = make_item ("StanzaNumber", SCM_EOL);
53 text_->set_property ("text", stanza);
58 Stanza_number_engraver::acknowledge_lyric_syllable (Grob_info inf)
61 Side_position_interface::add_support (text_, inf.grob ());
65 Stanza_number_engraver::stop_translation_timestep ()
70 #include "translator.icc"
72 ADD_ACKNOWLEDGER (Stanza_number_engraver, lyric_syllable);
73 ADD_TRANSLATOR (Stanza_number_engraver,
75 /* create */ "StanzaNumber",