2 head-grav.cc -- part of GNU LilyPond
4 (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "rhythmic-head.hh"
10 #include "paper-def.hh"
11 #include "musical-request.hh"
13 #include "dot-column.hh"
14 #include "staff-symbol-referencer.hh"
16 #include "score-engraver.hh"
20 make (guitar-like) tablature note
22 class Tab_note_heads_engraver : public Engraver
24 Link_array<Item> notes_;
26 Link_array<Item> dots_;
27 Link_array<Note_req> note_reqs_;
28 Link_array<String_number_req> tabstring_reqs_;
30 TRANSLATOR_DECLARATIONS(Tab_note_heads_engraver);
33 virtual void start_translation_timestep ();
34 virtual bool try_music (Music *req) ;
35 virtual void process_music ();
37 virtual void stop_translation_timestep ();
41 Tab_note_heads_engraver::Tab_note_heads_engraver()
46 Tab_note_heads_engraver::try_music (Music *m)
48 if (Note_req * n =dynamic_cast <Note_req *> (m))
53 else if (String_number_req * ts = dynamic_cast<String_number_req*> (m))
55 while(tabstring_reqs_.size () < note_reqs_.size ()-1)
56 tabstring_reqs_.push(0);
57 tabstring_reqs_.push(ts);
60 else if (dynamic_cast<Busy_playing_req*> (m))
62 return note_reqs_.size ();
70 Tab_note_heads_engraver::process_music ()
72 for (int i=0; i < note_reqs_.size (); i++)
74 SCM stringTunings = get_property ("stringTunings");
75 int number_of_strings = ((int) gh_length(stringTunings));
76 bool high_string_one = to_boolean(get_property ("highStringOne"));
78 Item * note = new Item (get_property ("TabNoteHead"));
80 Music * req = note_reqs_[i];
82 Music * tabstring_req = 0;
83 if(tabstring_reqs_.size()>i)
84 tabstring_req = tabstring_reqs_[i];
85 // printf("%d %d\n",tabstring_reqs_.size(),i);
90 //char* tab_string_as_string = gh_scm2newstr(tabstring_req->get_mus_property ("text"), &lenp);
91 //tab_string = atoi(tab_string_as_string);
92 tab_string = gh_scm2int(tabstring_req->get_mus_property ("string-number"));
96 tab_string = high_string_one ? 1 : number_of_strings;
100 Duration dur = *unsmob_duration (req->get_mus_property ("duration"));
102 note->set_grob_property ("duration-log", gh_int2scm (dur.duration_log ()));
104 if (dur.dot_count ())
106 Item * d = new Item (get_property ("Dots"));
107 Rhythmic_head::set_dots (note, d);
110 != gh_scm2int (d->get_grob_property ("dot-count")))
111 d->set_grob_property ("dot-count", gh_int2scm (dur.dot_count ()));
113 d->set_parent (note, Y_AXIS);
114 announce_grob (d, SCM_EOL);
119 SCM scm_pitch = req->get_mus_property ("pitch");
120 SCM proc = get_property ("tablatureFormat");
121 SCM min_fret_scm = get_property ("minimumFret");
122 int min_fret = gh_number_p(min_fret_scm) ? gh_scm2int(min_fret_scm) : 0;
124 while(!string_found) {
125 int fret = unsmob_pitch(scm_pitch)->semitone_pitch()
126 - gh_scm2int(gh_list_ref(stringTunings,gh_int2scm(tab_string-1)));
128 tab_string += high_string_one ? 1 : -1;
133 SCM text = gh_call3 (proc, gh_int2scm (tab_string), stringTunings, scm_pitch);
135 int pos = 2 * tab_string - number_of_strings - 1; // No tab-note between the string !!!
136 if(to_boolean(get_property("stringOneTopmost")))
139 note->set_grob_property ("text", text);
141 note->set_grob_property ("staff-position", gh_int2scm (pos));
142 announce_grob (note, req->self_scm());
148 Tab_note_heads_engraver::stop_translation_timestep ()
150 for (int i=0; i < notes_.size (); i++)
152 typeset_grob (notes_[i]);
156 for (int i=0; i < dots_.size (); i++)
158 typeset_grob (dots_[i]);
164 tabstring_reqs_.clear ();
168 Tab_note_heads_engraver::start_translation_timestep ()
173 ENTER_DESCRIPTION(Tab_note_heads_engraver,
174 /* descr */ "Generate one or more tablature noteheads from Music of type Note_req.",
175 /* creats*/ "TabNoteHead Dots",
176 /* accepts */ "general-music",
178 /* reads */ "centralCPosition stringTunings minimumFret tablatureFormat highStringOne stringOneTopmost",