]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/part-combine-music-iterator.cc
* Documentation/windows/zlily-profile.sh:
[lilypond.git] / lily / part-combine-music-iterator.cc
index 33bea70d144387618e8de6d9f2e1e6554b4b0e8e..3e0fccef6e5e559ac7d274ba85ff1ee8931c3938 100644 (file)
@@ -3,21 +3,23 @@
 
   source file of the GNU LilyPond music typesetter
   
-  (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
+  (c) 2000--2002 Jan Nieuwenhuizen <janneke@gnu.org>
  */
 
 #include "part-combine-music.hh"
 #include "part-combine-music-iterator.hh"
 #include "translator-group.hh"
 #include "musical-request.hh"
+#include "music-sequence.hh"
+#include "lily-guile.hh"
 #include "warn.hh"
 
 Part_combine_music_iterator::Part_combine_music_iterator ()
 {
-  combined_b_ = false;
-
   first_iter_p_ = 0;
   second_iter_p_ = 0;
+  first_until_ = 0;
+  second_until_ = 0;
 }
 
 Part_combine_music_iterator::~Part_combine_music_iterator ()
@@ -26,32 +28,41 @@ Part_combine_music_iterator::~Part_combine_music_iterator ()
   delete first_iter_p_;
 }
 
-Moment
-Part_combine_music_iterator::next_moment () const
+Part_combine_music_iterator::Part_combine_music_iterator (Part_combine_music_iterator const &src)
+  : Music_iterator (src)
 {
-  Moment first_next = first_iter_p_->next_moment ();
-  Moment second_next = second_iter_p_->next_moment ();
-  return first_next <? second_next;
+  second_iter_p_ = src.second_iter_p_ ? src.second_iter_p_->clone () : 0;
+  first_iter_p_ = src.first_iter_p_ ? src.first_iter_p_->clone () : 0;
+
+  first_until_ = src.first_until_;
+  second_until_ = src.second_until_;
+  state_ = src.state_;
+  suffix_ = src.suffix_;
 }
 
-bool
-Part_combine_music_iterator::ok () const
+Moment
+Part_combine_music_iterator::pending_moment () const
 {
-  //hmm
-  return first_iter_p_->ok ();
+  Moment p;
+  p.set_infinite (1);
+  if (first_iter_p_->ok ())
+    p = p <? first_iter_p_->pending_moment ();
+
+  if (second_iter_p_->ok ())
+    p = p <? second_iter_p_->pending_moment ();
+  return p;
 }
 
-void
-Part_combine_music_iterator::do_print () const
+bool
+Part_combine_music_iterator::ok () const
 {
-  first_iter_p_->print ();
-  second_iter_p_->print ();
+  return first_iter_p_->ok () || second_iter_p_->ok ();
 }
 
 void
 Part_combine_music_iterator::construct_children ()
 {
-  Part_combine_music const * m = dynamic_cast<Part_combine_music const*> (music_l_);
+  Part_combine_music const * m = dynamic_cast<Part_combine_music const*> (music_l ());
   
   first_iter_p_ = get_iterator_p (m->first_l ());
   second_iter_p_ = get_iterator_p (m->second_l ());
@@ -74,7 +85,7 @@ Part_combine_music_iterator::change_to (Music_iterator *it, String to_type,
      
      If \translator Staff = bass, then look for Staff = *
    */
-  while  (current && current->type_str_ != to_type)
+  while (current && current->type_str_ != to_type)
     {
       last = current;
       current = current->daddy_trans_l_;
@@ -92,7 +103,7 @@ Part_combine_music_iterator::change_to (Music_iterator *it, String to_type,
        Translator_group * dest = 
          it->report_to_l ()->find_create_translator_l (to_type, to_id);
        current->remove_translator_p (last);
-       dest->add_translator (last);
+       dest->add_used_group_translator (last);
       }
     else
       {
@@ -108,122 +119,305 @@ Part_combine_music_iterator::change_to (Music_iterator *it, String to_type,
     error (_f ("none of these in my family: `%s'", to_id.ch_C ()));
 }
 
-Pitch_interrogate_req* first_spanish_inquisition; // nobody expects it
-Pitch_interrogate_req* second_spanish_inquisition; // won't strike twice
 
-void
-Part_combine_music_iterator::do_process_and_next (Moment m)
+// SCM*, moet / kan dat niet met set_x ofzo?
+static void
+get_music_info (Moment m, Music_iterator* iter, SCM *pitches, SCM *durations)
 {
-  Moment first_next = first_iter_p_->next_moment ();
-  Moment second_next = second_iter_p_->next_moment ();
-
-#if 0
-  if (first_next > m || second_next > m)
-    return;
-#endif
-
-  /*
-    different rhythm for combined voices: separate 
-    same rhythm for separated voices: combine
-  */
-  if ((first_next != second_next && combined_b_)
-      || (first_next == second_next && !combined_b_))
+  if (iter->ok ())
     {
-      combined_b_ = !combined_b_;
-      String to_id =  combined_b_ ? "first" : "second";
-
-      Part_combine_music const * p = dynamic_cast<Part_combine_music const* > (music_l_);
-
-      change_to (second_iter_p_, p->what_str_, to_id);
-
-      /*
-       A quick ugly hack to see if it works..
-       */
-#if 0
-      Translator_group * fd = 
-       first_iter_p_->report_to_l ()->find_create_translator_l (p->what_str_,
-                                                                "first");
-      Translator_group * sd = 
-       second_iter_p_->report_to_l ()->find_create_translator_l (p->what_str_,
-                                                                 to_id);
-#else
-      Translator_group * fd = first_iter_p_->report_to_l ();
-      Translator_group * sd = second_iter_p_->report_to_l ();
-#endif
-      
-      if (combined_b_)
+      for (SCM i = iter->get_music (m); gh_pair_p (i); i = ly_cdr (i))
        {
-         fd->set_property ("verticalDirection", gh_int2scm (0));
-         fd->set_property ("noteHeadStyle", ly_symbol2scm ("default"));
-       }
-      else
-       {
-         fd->set_property ("verticalDirection", gh_int2scm (1));
-         fd->set_property ("noteHeadStyle", ly_symbol2scm ("diamond"));
-         sd->set_property ("verticalDirection", gh_int2scm (-1));
+         Music *m = unsmob_music (ly_car (i));
+         if (Melodic_req *r = dynamic_cast<Melodic_req *> (m))
+           *pitches = gh_cons (r->get_mus_property ("pitch"), *pitches);
+         if (Rhythmic_req *r = dynamic_cast<Rhythmic_req *> (m))
+           {
+             SCM d = r->get_mus_property ("duration");
+             if (d == SCM_EOL)
+               r->origin ()->warning ("Rhythmic_req has no duration\n");
+               else
+                 // *durations = gh_cons (r->get_mus_property ("duration"), *durations);
+                 *durations = gh_cons (d, *durations);
+           }
        }
     }
+}
+  
+int
+Part_combine_music_iterator::get_state (Moment)
+{
+  int state = UNKNOWN;
+  Part_combine_music const *p = dynamic_cast<Part_combine_music const* > (music_l ());
+
+  String w = ly_scm2string (p->get_mus_property ("what"));
+    
+  
+  Translator_group *first_translator = first_iter_p_->report_to_l ()->find_create_translator_l (w, "one" + suffix_);
+
+  SCM s = first_translator->get_property ("changeMoment");
+  if (!gh_pair_p (s))
+    return state;
 
-  first_iter_p_->process_and_next (m);
-  second_iter_p_->process_and_next (m);
+  Moment change_mom = *unsmob_moment (ly_car (s));
+  Moment diff_mom = *unsmob_moment (ly_cdr (s));
+  
+  Moment now = pending_moment ();
 
-  Music_iterator::do_process_and_next (m);
+  if (!now.main_part_.mod_rat (change_mom.main_part_))
+    {
+      SCM interval = SCM_BOOL_F;
+      if (first_until_ < now)
+       first_until_ = now;
+      if (second_until_ < now)
+       second_until_ = now;
+
+      Moment first_mom = first_until_;
+      Moment second_mom = second_until_;
+      Moment diff_until = diff_mom + now;
+
+      bool first = true;
+      Music_iterator *first_iter = first_iter_p_->clone ();
+      Music_iterator *second_iter = second_iter_p_->clone ();
+
+      Moment last_pending (-1);
+      Moment pending = now;
+      while (now < diff_until
+             && (first_iter->ok () || second_iter->ok ())
+
+            // urg, this is a hack, haven't caught this case yet
+            && (pending != last_pending))
+       {
+         if (!second_iter->ok ())
+           pending = first_iter->pending_moment ();
+         else if (!first_iter->ok ())
+           pending = second_iter->pending_moment ();
+         else
+           pending = first_iter->pending_moment () <? second_iter->pending_moment ();
+         last_pending = pending;
+
+         SCM first_pitches = SCM_EOL;
+         SCM first_durations = SCM_EOL;
+         get_music_info (pending, first_iter,
+                         &first_pitches, &first_durations);
+      
+         SCM second_pitches = SCM_EOL;
+         SCM second_durations = SCM_EOL;
+         get_music_info (pending, second_iter,
+                         &second_pitches, &second_durations);
+
+         if (first_pitches != SCM_EOL && second_pitches != SCM_EOL)
+           {
+             scm_sort_list_x (first_pitches,
+                              scm_primitive_eval (ly_symbol2scm ("Pitch::less_p")));
+             scm_sort_list_x (second_pitches,
+                              scm_primitive_eval (ly_symbol2scm ("Pitch::less_p")));
+
+             interval = gh_int2scm (unsmob_pitch (ly_car (first_pitches))->steps ()
+                                    - unsmob_pitch (ly_car (scm_last_pair (second_pitches)))->steps ());
+           }
+
+         if (first_durations != SCM_EOL)
+           {
+             scm_sort_list_x (first_durations,
+                              scm_primitive_eval (ly_symbol2scm ("Duration::less_p")));
+             first_mom += unsmob_duration (ly_car (first_durations))->length_mom ();
+           }
+         
+         if (second_durations != SCM_EOL)
+           {
+             scm_sort_list_x (second_durations,
+                              scm_primitive_eval (ly_symbol2scm ("Duration::less_p")));
+             second_mom += unsmob_duration (ly_car (second_durations))->length_mom ();
+           }
+         
+         if (first_pitches != SCM_EOL && second_pitches == SCM_EOL
+                 && ! (second_until_ > now))
+           {
+             state |= UNRELATED;
+             state &= ~UNISILENCE;
+             if (! (state & ~ (UNRELATED | SOLO1 | UNISILENCE)))
+               state |= SOLO1;
+           }
+         else
+           state &= ~SOLO1;
+
+         if (first_pitches == SCM_EOL && second_pitches != SCM_EOL
+             && ! (first_until_ > now))
+           {
+             state |= UNRELATED;
+             state &= ~UNISILENCE;
+             if (! (state & ~ (UNRELATED | SOLO2 | UNISILENCE)))
+               state |= SOLO2;
+           }
+         else
+           state &= ~SOLO2;
+
+         if (gh_equal_p (first_durations, second_durations))
+           {
+             state &= ~UNISILENCE;
+             if (! (state & ~ (UNIRHYTHM | UNISON)))
+               state |= UNIRHYTHM;
+           }
+         else
+           state &= ~ (UNIRHYTHM | UNISILENCE);
+         
+         if (first_pitches != SCM_EOL
+             && gh_equal_p (first_pitches, second_pitches))
+           {
+             state &= ~UNISILENCE;
+             if (! (state & ~ (UNIRHYTHM | UNISON)))
+               state |= UNISON;
+           }
+         else
+           state &= ~ (UNISON);
+           
+         if (first_pitches == SCM_EOL && second_pitches == SCM_EOL)
+           {
+             if (! (state & ~ (UNIRHYTHM | UNISILENCE)))
+               state |= UNISILENCE;
+           }
+         else if (!state)
+           state |= UNRELATED;
+         else
+           state &= ~ (UNISILENCE);
+
+         if (gh_number_p (interval))
+           {
+             SCM s = first_translator->get_property ("splitInterval");
+             int i = gh_scm2int (interval);
+             if (gh_pair_p (s)
+                 && gh_number_p (ly_car (s))
+                 && gh_number_p (ly_cdr (s))
+                 && i >= gh_scm2int (ly_car (s))
+                 && i <= gh_scm2int (ly_cdr (s)))
+               {
+                 if (! (state & ~ (SPLIT_INTERVAL | UNIRHYTHM | UNISON)))
+                   state |= SPLIT_INTERVAL;
+               }
+             else
+               state &= ~ (SPLIT_INTERVAL);
+           }
+
+         if (first && first_pitches != SCM_EOL)
+           first_until_ = first_mom;
+         if (first && second_pitches != SCM_EOL)
+           second_until_ = second_mom;
+         first = false;
+
+         if (first_iter->ok ())
+           first_iter->skip (pending);
+         if (second_iter->ok ())
+           second_iter->skip (pending);
+         now = pending;
+       }
+      delete first_iter;
+      delete second_iter;
+    }
+  return state;
+}
 
+static Span_req* abort_req = NULL;
 
-#if 0 
+void
+Part_combine_music_iterator::process (Moment m)
+{
 
   /*
     TODO:
+    - Use three named contexts (be it Thread or Voice): one, two, solo.
+      Let user pre-set (pushproperty) stem direction, remove
+      dynamic-engraver, and such.
 
-    * when combining two threads: check pitches, request stem directions
+      **** Tried this, but won't work:
 
-    * a2-engraver to put texts a2/Solo/SoloII as appropriate.
-
-    * maybe the a2-engraver should set the stem directions, iso us?
-    
-
-    Maybe different modes exist?
+      Consider thread switching: threads "one", "two" and "both".
+      User can't pre-set the (most important) stem direction at
+      thread level!
+   */
+  if (suffix_.empty_b ())
+    suffix_ = first_iter_p_->report_to_l ()->daddy_trans_l_->id_str_.cut_str (3, INT_MAX);
 
-    * Wind instruments (Flute I/II)
-    * Hymnals:  
+  int state = get_state (m);
+  if (state)
+    state_ = state;
+  else
+    state = state_;
+  
+  Part_combine_music const *p = dynamic_cast<Part_combine_music const* > (music_l ());
 
 
-      Rules for Hymnals/SATB (John Henckel <henckel@iname.com>):
+  bool previously_combined_b = first_iter_p_->report_to_l ()->daddy_trans_l_
+    == second_iter_p_->report_to_l ()->daddy_trans_l_;
 
-      1. if S and A differ by less than a third, the stems should be up/down.
-      2. else if S and A have different values, the stems should be up/down.
-      3. else if A sings "la" or higher, both S and A stems should be down.
-      4. else both stems should be up
+  bool combine_b = previously_combined_b;
 
-    * This may get really tricky: combining voices/staffs: string instruments
+  if (! (state & UNIRHYTHM)
+      || (state & SPLIT_INTERVAL)
+      || (state & (SOLO1 | SOLO2)))
+    combine_b = false;
+  else if (state & (UNIRHYTHM | UNISILENCE))
+    combine_b = true;
 
+  /*
+    When combining, abort all running spanners
    */
-  
-  if (!first_spanish_inquisition)
-    first_spanish_inquisition = new Pitch_interrogate_req;
-  Music_iterator* fit = first_iter_p_->try_music (first_spanish_inquisition);
-
-  if (!second_spanish_inquisition)
-    second_spanish_inquisition = new Pitch_interrogate_req;
-  Music_iterator* sit = second_iter_p_->try_music (second_spanish_inquisition);
 
-  if (fit && first_spanish_inquisition->pitch_arr_.size ())
+  if (!abort_req)
     {
-      Musical_pitch p = spanish_inquisition->pitch_arr_[0];
-      Direction s = Direction (sign(p.steps ()));
-      if (s != where_dir_)
-       {
-         where_dir_ = s;
-         String to_id =  (s >= 0) ?  "up" : "down";
-         Part_combine_music const * auto_mus = dynamic_cast<Part_combine_music const* > (music_l_);
-
-         change_to (it, auto_mus->what_str_, to_id);     
-       }
+      abort_req = new Span_req;
+      abort_req->set_mus_property ("span-type", ly_str02scm ("abort"));
     }
+  
+  if (combine_b && combine_b != previously_combined_b)
+    {
+      if (second_iter_p_ && second_iter_p_->ok ())
+       second_iter_p_->try_music (abort_req);
+     }
+  String w = ly_scm2string (p->get_mus_property ("what"));
+  if (combine_b != previously_combined_b)
+    change_to (second_iter_p_, w, (combine_b ? "one" : "two")
+              + suffix_);
+  
+  Translator_group *first_translator = first_iter_p_->report_to_l ()->find_create_translator_l (w, "one" + suffix_);
+  Translator_group *second_translator = second_iter_p_->report_to_l ()->find_create_translator_l (w, "two" + suffix_);
+  
 
-  first_spanish_inquisition->pitch_arr_.clear ();
-  second_spanish_inquisition->pitch_arr_.clear ();
-#endif
+  /* Hmm */
+  first_translator->set_property ("combineParts", SCM_BOOL_T);
+  second_translator ->set_property ("combineParts", SCM_BOOL_T);
+  /* hmm */
+  SCM b = (state & UNIRHYTHM) ? SCM_BOOL_T : SCM_BOOL_F;
+  first_translator->set_property ("unirhythm", b);
+  second_translator->set_property ("unirhythm", b);
+
+  b = (state & SPLIT_INTERVAL) ? SCM_BOOL_T : SCM_BOOL_F;
+  first_translator->set_property ("split-interval", b);
+  second_translator->set_property ("split-interval",  b);
+
+  b = (state & UNISILENCE) ? SCM_BOOL_T : SCM_BOOL_F;
+  first_translator->set_property ("unisilence", b);
+  second_translator->set_property ("unisilence", b);
+
+  // difference in definition...
+  //b = ((state & UNISON) ? SCM_BOOL_T : SCM_BOOL_F;
+  b = ((state & UNISON) && (state & UNIRHYTHM)) ? SCM_BOOL_T : SCM_BOOL_F;
+  first_translator->set_property ("unison", b);
+  second_translator->set_property ("unison", b);
+
+  SCM b1 = (state & SOLO1) ? SCM_BOOL_T : SCM_BOOL_F;
+  SCM b2 = (state & SOLO2) ? SCM_BOOL_T : SCM_BOOL_F;
+  first_translator->set_property ("solo", b1);
+  second_translator->set_property ("solo", b2);
+
+  if (first_iter_p_->ok ())
+    first_iter_p_->process (m);
+  
+  if (second_iter_p_->ok ())
+    second_iter_p_->process (m);
 }
 
 Music_iterator*
@@ -236,3 +430,16 @@ Part_combine_music_iterator::try_music_in_children (Music *m) const
     return second_iter_p_->try_music (m);
 }
 
+
+SCM
+Part_combine_music_iterator::get_music (Moment m)const
+{
+  SCM s = SCM_EOL;
+  if (first_iter_p_)
+    s = gh_append2 (s,first_iter_p_->get_music (m));
+  if (second_iter_p_)
+    s = gh_append2 (second_iter_p_->get_music (m),s);
+  return s;
+}
+
+IMPLEMENT_CTOR_CALLBACK (Part_combine_music_iterator);