4 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 #include "rhythmic-head.hh"
11 #include "engraver.hh"
13 #include "side-position-interface.hh"
14 #include "script-interface.hh"
16 #include "note-column.hh"
18 class Drum_notes_engraver : public Engraver
20 Link_array<Item> notes_;
21 Link_array<Item> dots_;
22 Link_array<Item> scripts_;
23 Link_array<Music> events_;
26 TRANSLATOR_DECLARATIONS (Drum_notes_engraver);
29 virtual bool try_music (Music *ev) ;
30 virtual void process_music ();
31 virtual void acknowledge_grob (Grob_info);
32 virtual void stop_translation_timestep ();
35 Drum_notes_engraver::Drum_notes_engraver ()
40 Drum_notes_engraver::try_music (Music *m)
42 if (m->is_mus_type ("note-event"))
47 else if (m->is_mus_type ("busy-playing-event"))
48 return events_.size ();
55 Drum_notes_engraver::process_music ()
58 for (int i=0; i < events_.size (); i++)
61 tab = get_property ("drumStyleTable");
63 Music * ev = events_[i];
64 Item *note = make_item ("NoteHead", ev->self_scm ());
66 Duration dur = *unsmob_duration (ev->get_property ("duration"));
68 note->set_property ("duration-log", scm_int2num (dur.duration_log ()));
72 Item * d = make_item ("Dots", ev->self_scm ());
73 Rhythmic_head::set_dots (note, d);
76 != robust_scm2int (d->get_property ("dot-count"), 0))
77 d->set_property ("dot-count", scm_int2num (dur.dot_count ()));
79 d->set_parent (note, Y_AXIS);
84 SCM drum_type = ev->get_property ("drum-type");
88 if (scm_hash_table_p (tab) == SCM_BOOL_T)
89 defn = scm_hashq_ref (tab, drum_type, SCM_EOL);
91 if (scm_is_pair (defn))
93 SCM pos = ly_caddr (defn);
94 SCM style =ly_car (defn);
95 SCM script = ly_cadr (defn);
97 if (scm_integer_p (pos) == SCM_BOOL_T)
98 note->set_property ("staff-position", pos);
99 if (scm_is_symbol (style))
100 note->set_property ("style", style);
102 if (scm_is_string (script))
104 Item *p = make_item ("Script", ev->self_scm ());
106 make_script_from_event (p, &follow,
110 if (p->get_property ("follow-into-staff"))
111 p->set_property ("staff-padding", SCM_EOL);
114 p->set_parent (note, Y_AXIS);
115 Side_position_interface::add_support (p, note);
125 Drum_notes_engraver::acknowledge_grob (Grob_info inf)
127 if (Stem::has_interface (inf.grob_))
129 for (int i=0; i < scripts_.size (); i++)
131 Grob*e = scripts_[i];
133 if (to_dir (e->get_property ("side-relative-direction")))
134 e->set_property ("direction-source", inf.grob_->self_scm ());
139 e->add_dependency (inf.grob_);
140 Side_position_interface::add_support (e, inf.grob_);
143 else if (Note_column::has_interface (inf.grob_))
145 for (int i=0; i < scripts_.size (); i++)
147 Grob *e = scripts_[i];
149 if (!e->get_parent (X_AXIS) &&
150 Side_position_interface::get_axis (e) == Y_AXIS)
152 e->set_parent (inf.grob_, X_AXIS);
161 Drum_notes_engraver::stop_translation_timestep ()
172 ENTER_DESCRIPTION (Drum_notes_engraver,
173 /* descr */ "Generate noteheads.",
174 /* creats*/ "NoteHead Dots Script",
175 /* accepts */ "note-event busy-playing-event",
176 /* acks */ "stem-interface note-column-interface",
177 /* reads */ "drumStyleTable",