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"
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 ();
49 else if (m->is_mus_type ("start-playing-event"))
50 return events_.size ();
57 Drum_notes_engraver::process_music ()
60 for (int i=0; i < events_.size (); i++)
63 tab = get_property ("drumStyleTable");
65 Item *note = make_item ("NoteHead");
66 Music * ev = events_[i];
68 Duration dur = *unsmob_duration (ev->get_property ("duration"));
70 note->set_property ("duration-log", gh_int2scm (dur.duration_log ()));
74 Item * d = make_item ("Dots");
75 Rhythmic_head::set_dots (note, d);
78 != robust_scm2int (d->get_property ("dot-count"), 0))
79 d->set_property ("dot-count", gh_int2scm (dur.dot_count ()));
81 d->set_parent (note, Y_AXIS);
82 announce_grob (d, SCM_EOL);
86 SCM drum_type = ev->get_property ("drum-type");
90 if (scm_hash_table_p (tab) == SCM_BOOL_T)
91 defn = scm_hashq_ref (tab, drum_type, SCM_EOL);
95 SCM pos = gh_caddr (defn);
96 SCM style =gh_car (defn);
97 SCM script = gh_cadr (defn);
99 if (scm_integer_p (pos) == SCM_BOOL_T)
100 note->set_property ("staff-position", pos);
101 if (gh_symbol_p (style))
102 note->set_property ("style", style);
104 if (gh_string_p (script))
106 Item *p = make_item ("Script");
108 make_script_from_event (p, &desc,
109 daddy_context_, script,
112 if (p->get_property ("follow-into-staff"))
113 p->set_property ("staff-padding", SCM_EOL);
115 announce_grob (p, ev->self_scm ());
117 p->set_parent (note, Y_AXIS);
118 Side_position_interface::add_support (p, note);
125 announce_grob (note,ev->self_scm());
131 Drum_notes_engraver::acknowledge_grob (Grob_info inf)
133 if (Stem::has_interface (inf.grob_))
135 for (int i=0; i < scripts_.size (); i++)
137 Grob*e = scripts_[i];
139 if (to_dir (e->get_property ("side-relative-direction")))
140 e->set_property ("direction-source", inf.grob_->self_scm ());
145 e->add_dependency (inf.grob_);
146 Side_position_interface::add_support (e, inf.grob_);
149 else if (Note_column::has_interface (inf.grob_))
151 for (int i=0; i < scripts_.size (); i++)
153 Grob *e = scripts_[i];
155 if (!e->get_parent (X_AXIS) &&
156 Side_position_interface::get_axis (e) == Y_AXIS)
158 e->set_parent (inf.grob_, X_AXIS);
167 Drum_notes_engraver::stop_translation_timestep ()
169 for (int i=0; i < notes_.size (); i++)
171 typeset_grob (notes_[i]);
174 for (int i=0; i < dots_.size (); i++)
176 typeset_grob (dots_[i]);
179 for (int i=0; i < scripts_.size (); i++)
181 typeset_grob (scripts_[i]);
190 ENTER_DESCRIPTION(Drum_notes_engraver,
191 /* descr */ "Generate noteheads.",
192 /* creats*/ "NoteHead Dots Script",
193 /* accepts */ "note-event busy-playing-event",
194 /* acks */ "stem-interface note-column-interface",
195 /* reads */ "drumStyleTable",