2 arpeggio-engraver.cc -- implement Arpeggio_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 2000--2006 Jan Nieuwenhuizen <janneke@gnu.org>
11 #include "pointer-group-interface.hh"
12 #include "arpeggio.hh"
14 #include "rhythmic-head.hh"
15 #include "side-position-interface.hh"
16 #include "stream-event.hh"
17 #include "note-column.hh"
20 #include "translator.icc"
22 class Arpeggio_engraver : public Engraver
25 TRANSLATOR_DECLARATIONS (Arpeggio_engraver);
27 void acknowledge_stem (Grob_info);
28 void acknowledge_rhythmic_head (Grob_info);
29 void acknowledge_note_column (Grob_info);
31 void process_music ();
32 void stop_translation_timestep ();
33 DECLARE_TRANSLATOR_LISTENER (arpeggio);
36 Stream_event *arpeggio_event_;
39 Arpeggio_engraver::Arpeggio_engraver ()
45 IMPLEMENT_TRANSLATOR_LISTENER (Arpeggio_engraver, arpeggio);
46 void Arpeggio_engraver::listen_arpeggio (Stream_event *ev)
48 ASSIGN_EVENT_ONCE (arpeggio_event_, ev);
52 Arpeggio_engraver::acknowledge_stem (Grob_info info)
56 if (!arpeggio_->get_parent (Y_AXIS))
57 arpeggio_->set_parent (info.grob (), Y_AXIS);
59 Pointer_group_interface::add_grob (arpeggio_,
60 ly_symbol2scm ("stems"),
65 Arpeggio_engraver::acknowledge_rhythmic_head (Grob_info info)
70 We can't catch local key items (accidentals) from Voice context,
71 see Local_key_engraver
73 Side_position_interface::add_support (arpeggio_, info.grob ());
77 Arpeggio_engraver::acknowledge_note_column (Grob_info info)
80 info.grob ()->set_object ("arpeggio", arpeggio_->self_scm ());
84 Arpeggio_engraver::process_music ()
88 arpeggio_ = make_item ("Arpeggio", arpeggio_event_->self_scm ());
93 Arpeggio_engraver::stop_translation_timestep ()
99 ADD_ACKNOWLEDGER (Arpeggio_engraver, stem);
100 ADD_ACKNOWLEDGER (Arpeggio_engraver, rhythmic_head);
101 ADD_ACKNOWLEDGER (Arpeggio_engraver, note_column);
103 ADD_TRANSLATOR (Arpeggio_engraver,
104 /* doc */ "Generate an Arpeggio symbol",
105 /* create */ "Arpeggio",