4 (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "rhythmic-head.hh"
10 #include "engraver.hh"
12 #include "side-position-interface.hh"
13 #include "script-interface.hh"
15 #include "note-column.hh"
17 class Drum_notes_engraver : public Engraver
19 Link_array<Item> notes_;
20 Link_array<Item> dots_;
21 Link_array<Item> scripts_;
22 Link_array<Music> events_;
25 TRANSLATOR_DECLARATIONS (Drum_notes_engraver);
28 virtual bool try_music (Music *ev);
29 virtual void process_music ();
30 virtual void acknowledge_grob (Grob_info);
31 virtual void stop_translation_timestep ();
34 Drum_notes_engraver::Drum_notes_engraver ()
39 Drum_notes_engraver::try_music (Music *m)
41 if (m->is_mus_type ("note-event"))
46 else if (m->is_mus_type ("busy-playing-event"))
47 return events_.size ();
53 Drum_notes_engraver::process_music ()
56 for (int i = 0; i < events_.size (); i++)
59 tab = get_property ("drumStyleTable");
61 Music *ev = events_[i];
62 Item *note = make_item ("NoteHead", ev->self_scm ());
64 Duration dur = *unsmob_duration (ev->get_property ("duration"));
66 note->set_property ("duration-log", scm_int2num (dur.duration_log ()));
70 Item *d = make_item ("Dots", ev->self_scm ());
71 Rhythmic_head::set_dots (note, d);
74 != robust_scm2int (d->get_property ("dot-count"), 0))
75 d->set_property ("dot-count", scm_int2num (dur.dot_count ()));
77 d->set_parent (note, Y_AXIS);
82 SCM drum_type = ev->get_property ("drum-type");
86 if (scm_hash_table_p (tab) == SCM_BOOL_T)
87 defn = scm_hashq_ref (tab, drum_type, SCM_EOL);
89 if (scm_is_pair (defn))
91 SCM pos = scm_caddr (defn);
92 SCM style = scm_car (defn);
93 SCM script = scm_cadr (defn);
95 if (scm_integer_p (pos) == SCM_BOOL_T)
96 note->set_property ("staff-position", pos);
97 if (scm_is_symbol (style))
98 note->set_property ("style", style);
100 if (scm_is_string (script))
102 Item *p = make_item ("Script", ev->self_scm ());
104 make_script_from_event (p, &follow,
108 if (p->get_property ("follow-into-staff"))
109 p->set_property ("staff-padding", SCM_EOL);
111 p->set_parent (note, Y_AXIS);
112 Side_position_interface::add_support (p, note);
122 Drum_notes_engraver::acknowledge_grob (Grob_info inf)
124 if (Stem::has_interface (inf.grob ()))
126 for (int i = 0; i < scripts_.size (); i++)
128 Grob *e = scripts_[i];
130 if (to_dir (e->get_property ("side-relative-direction")))
131 e->set_property ("direction-source", inf.grob ()->self_scm ());
136 e->add_dependency (inf.grob ());
137 Side_position_interface::add_support (e, inf.grob ());
140 else if (Note_column::has_interface (inf.grob ()))
142 for (int i = 0; i < scripts_.size (); i++)
144 Grob *e = scripts_[i];
146 if (!e->get_parent (X_AXIS)
147 && Side_position_interface::get_axis (e) == Y_AXIS)
149 e->set_parent (inf.grob (), X_AXIS);
156 Drum_notes_engraver::stop_translation_timestep ()
165 ADD_TRANSLATOR (Drum_notes_engraver,
166 /* descr */ "Generate noteheads.",
167 /* creats*/ "NoteHead Dots Script",
168 /* accepts */ "note-event busy-playing-event",
169 /* acks */ "stem-interface note-column-interface",
170 /* reads */ "drumStyleTable",