]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/tab-note-heads-engraver.cc
Run `make grand-replace'.
[lilypond.git] / lily / tab-note-heads-engraver.cc
index 00b4ab156d8d93d858abf1b11f7905b453a0c85a..ae012d65131d5d9c1e656dfb54b2379ff7caabfe 100644 (file)
@@ -1,25 +1,26 @@
 /*
   tab-note-heads-engraver.cc -- part of GNU LilyPond
 
-  based on note-heads-engraver.cc, by Jean-Baptiste Lamy <jiba@tuxfamily.org>,
-
-  (c) 2002--2006
+  (c) 2002--2008 Han-Wen Nienhuys, Jean-Baptiste Lamy <jiba@tuxfamily.org>,
 */
 
 #include <cctype>
 #include <cstdio>
+
+#include "engraver.hh"
+
 using namespace std;
 
-#include "rhythmic-head.hh"
-#include "output-def.hh"
-#include "music.hh"
-#include "dots.hh"
-#include "dot-column.hh"
-#include "staff-symbol-referencer.hh"
+#include "duration.hh"
 #include "item.hh"
-#include "score-engraver.hh"
+#include "output-def.hh"
+#include "pitch.hh"
+#include "rhythmic-head.hh"
+#include "stream-event.hh"
 #include "warn.hh"
-#include "duration.hh"
+#include "context.hh"
+
+#include "translator.icc"
 
 /**
    make (guitar-like) tablature note
@@ -28,14 +29,14 @@ class Tab_note_heads_engraver : public Engraver
 {
   vector<Item*> notes_;
 
-  vector<Item*> dots_;
-  vector<Music*> note_events_;
-  vector<Music*> tabstring_events_;
+  vector<Stream_event*> note_events_;
+  vector<Stream_event*> tabstring_events_;
 public:
   TRANSLATOR_DECLARATIONS (Tab_note_heads_engraver);
 
 protected:
-  virtual bool try_music (Music *event);
+  DECLARE_TRANSLATOR_LISTENER (note);
+  DECLARE_TRANSLATOR_LISTENER (string_number);
   void process_music ();
 
   void stop_translation_timestep ();
@@ -45,46 +46,40 @@ Tab_note_heads_engraver::Tab_note_heads_engraver ()
 {
 }
 
-bool
-Tab_note_heads_engraver::try_music (Music *m)
+IMPLEMENT_TRANSLATOR_LISTENER (Tab_note_heads_engraver, note);
+void
+Tab_note_heads_engraver::listen_note (Stream_event *ev)
 {
-  if (m->is_mus_type ("note-event"))
-    {
-      note_events_.push_back (m);
-      return true;
-    }
-  else if (m->is_mus_type ("string-number-event"))
-    {
-      tabstring_events_.push_back (m);
-      return true;
-    }
-  else if (m->is_mus_type ("busy-playing-event"))
-    return note_events_.size ();
+  note_events_.push_back (ev);
+}
 
-  return false;
+IMPLEMENT_TRANSLATOR_LISTENER (Tab_note_heads_engraver, string_number);
+void
+Tab_note_heads_engraver::listen_string_number (Stream_event *ev)
+{
+  tabstring_events_.push_back (ev);
 }
 
 void
 Tab_note_heads_engraver::process_music ()
 {
-  int j = 0;
+  vsize j = 0;
   for (vsize i = 0; i < note_events_.size (); i++)
     {
-      SCM stringTunings = get_property ("stringTunings");
-      int number_of_strings = ((int) ly_length (stringTunings));
+      SCM string_tunings = get_property ("stringTunings");
+      int string_count = scm_ilength (string_tunings);
       bool high_string_one = to_boolean (get_property ("highStringOne"));
 
-      Music *event = note_events_[i];
-      Item *note = make_item ("TabNoteHead", event->self_scm ());
+      Stream_event *event = note_events_[i];
 
-      Music *tabstring_event = 0;
+      Stream_event *tabstring_event = 0;
 
       for (SCM s = event->get_property ("articulations");
           !tabstring_event && scm_is_pair (s); s = scm_cdr (s))
        {
-         Music *art = unsmob_music (scm_car (s));
+         Stream_event *art = unsmob_stream_event (scm_car (s));
 
-         if (art->is_mus_type ("string-number-event"))
+         if (art->in_event_class ("string-number-event"))
            tabstring_event = art;
        }
 
@@ -95,80 +90,79 @@ Tab_note_heads_engraver::process_music ()
            j++;
        }
 
-      int tab_string;
-      bool string_found;
+      int string_number = 0;
       if (tabstring_event)
-       {
-         tab_string = scm_to_int (tabstring_event->get_property ("string-number"));
-         string_found = true;
-       }
-      else
-       {
-         tab_string = high_string_one ? 1 : number_of_strings;
-         string_found = false;
-       }
+       string_number = scm_to_int (tabstring_event->get_property ("string-number"));
 
-      Duration dur = *unsmob_duration (event->get_property ("duration"));
-      note->set_property ("duration-log",
-                         scm_from_int (dur.duration_log ()));
-
-      if (dur.dot_count ())
+      if (!string_number)
        {
-         Item *d = make_item ("Dots", event->self_scm ());
-         Rhythmic_head::set_dots (note, d);
-
-         if (dur.dot_count ()
-             != scm_to_int (d->get_property ("dot-count")))
-           d->set_property ("dot-count", scm_from_int (dur.dot_count ()));
-
-         d->set_parent (note, Y_AXIS);
-
-         dots_.push_back (d);
+         SCM scm_pitch = event->get_property ("pitch");
+         int min_fret = robust_scm2int (get_property ("minimumFret"), 0);
+         int start = (high_string_one) ? 1 : string_count;
+         int end = (high_string_one) ? string_count+1 : 0;
+
+         int i = start;
+         do
+           {
+             int fret = unsmob_pitch (scm_pitch)->rounded_semitone_pitch ()
+               - scm_to_int (robust_list_ref (i - 1, string_tunings));
+         
+             if (fret >= min_fret)
+               {
+                 string_number = i;
+                 break;
+               }
+             i += high_string_one ? 1 : -1;
+           }
+         while (i != end);
        }
-
-      SCM scm_pitch = event->get_property ("pitch");
-      SCM proc = get_property ("tablatureFormat");
-      SCM min_fret_scm = get_property ("minimumFret");
-      int min_fret = scm_is_number (min_fret_scm) ? scm_to_int (min_fret_scm) : 0;
-
-      while (!string_found)
+      
+      if (string_number)
        {
-         int fret = unsmob_pitch (scm_pitch)->semitone_pitch ()
-           - scm_to_int (scm_list_ref (stringTunings, scm_from_int (tab_string - 1)));
-         if (fret < min_fret)
-           tab_string += high_string_one ? 1 : -1;
-         else
-           string_found = true;
-       }
+         SCM proc = get_property ("tablatureFormat");
+         SCM text = scm_call_3 (proc, scm_from_int (string_number),
+                                context ()->self_scm (),
+                                event->self_scm ());
+         Item *note = make_item ("TabNoteHead", event->self_scm ());
+         note->set_property ("text", text);
 
-      SCM text = scm_call_3 (proc, scm_from_int (tab_string), stringTunings, scm_pitch);
 
-      int pos = 2 * tab_string - number_of_strings - 1; // No tab-note between the string !!!
-      if (to_boolean (get_property ("stringOneTopmost")))
-       pos = -pos;
+         int pos = 2 * string_number - string_count - 1; // No tab-note between the string !!!
+         if (to_boolean (get_property ("stringOneTopmost")))
+           pos = - pos;
 
-      note->set_property ("text", text);
-
-      note->set_property ("staff-position", scm_from_int (pos));
-      notes_.push_back (note);
+         note->set_property ("staff-position", scm_from_int (pos));
+      
+         notes_.push_back (note);
+       }
+      else
+       event->origin ()->warning ("could not calculate a string number.");
     }
 }
-
 void
 Tab_note_heads_engraver::stop_translation_timestep ()
 {
   notes_.clear ();
-  dots_.clear ();
   note_events_.clear ();
   tabstring_events_.clear ();
 }
 
-#include "translator.icc"
-
 ADD_TRANSLATOR (Tab_note_heads_engraver,
-               /* doc */ "Generate one or more tablature noteheads from Music of type NoteEvent.",
-               /* create */ "TabNoteHead Dots",
-               /* accept */ "note-event string-number-event busy-playing-event",
-               /* read */ "middleCPosition stringTunings minimumFret tablatureFormat highStringOne stringOneTopmost",
-               /* write */ "");
+               /* doc */
+               "Generate one or more tablature noteheads from event of type"
+               " @code{NoteEvent}.",
+
+               /* create */
+               "TabNoteHead ",
+
+               /* read */
+               "middleCPosition "
+               "stringTunings "
+               "minimumFret "
+               "tablatureFormat "
+               "highStringOne "
+               "stringOneTopmost ",
+
+               /* write */ ""
+               );