]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/auto-beam-engraver.cc
release: 1.1.56
[lilypond.git] / lily / auto-beam-engraver.cc
index 20cb6b70c884a9cf42a21b88ac9baba5788010b0..77094004d368cc2bb6b450dd0eb620b541afb910 100644 (file)
@@ -6,16 +6,16 @@
   (c) 1999 Jan Nieuwenhuizen <janneke@gnu.org>
   
  */
-
+#include "new-beaming.hh"
 #include "auto-beam-engraver.hh"
 #include "musical-request.hh"
 #include "bar.hh"
 #include "beam.hh"
-#include "rhythmic-grouping.hh"
 #include "rest.hh"
 #include "stem.hh"
 #include "debug.hh"
-#include "time-description.hh"
+#include "timing-engraver.hh"
+#include "engraver-group-engraver.hh"
 
 ADD_THIS_TRANSLATOR (Auto_beam_engraver);
 
@@ -26,26 +26,54 @@ Auto_beam_engraver::Auto_beam_engraver ()
   finished_beam_p_ = 0;
   finished_grouping_p_ = 0;
   grouping_p_ = 0;
+  timer_l_ =0;
 }
 
+void
+Auto_beam_engraver::do_creation_processing ()
+{
+  Translator * t = daddy_grav_l  ()->get_simple_translator ("Timing_engraver");
+  timer_l_ = dynamic_cast<Timing_engraver*> (t);
+}
+
+bool
+Auto_beam_engraver::do_try_music (Music* m) 
+{
+  /*
+    Mag dit?  Nu word-i toch maar geswallowed, en
+    komt er dus ook geen announce...
+   */
+  if (Skip_req* s = dynamic_cast <Skip_req*> (m))
+    {
+      if (stem_l_arr_p_)
+       end_beam ();
+      return true;
+    }
+  return false;
+} 
+
 void
 Auto_beam_engraver::do_process_requests ()
 {
-  consider_end_and_begin ();
+  consider_end_and_begin (shortest_mom_);
 }
 
 void
-Auto_beam_engraver::consider_end_and_begin ()
+Auto_beam_engraver::consider_end_and_begin (Moment test_mom)
 {
-  Time_description const *time = get_staff_info().time_C_;
+  if (!timer_l_)
+      return;
+  
+  Time_description const *time = &timer_l_->time_;
   int num = time->whole_per_measure_ / time->one_beat_;
   int den = time->one_beat_.den_i ();
   String time_str = String ("time") + to_str (num) + "_" + to_str (den);
+
   String type_str;
-  if (shortest_mom_.num () != 1)
-    type_str = to_str (shortest_mom_.num ());
-  if (shortest_mom_.den () != 1)
-    type_str = type_str + "_" + to_str (shortest_mom_.den ());
+  if (test_mom.num () != 1)
+    type_str = to_str (test_mom.num ());
+  if (test_mom.den () != 1)
+    type_str = type_str + "_" + to_str (test_mom.den ());
 
   /*
     Determine end moment for auto beaming (and begin, mostly 0==anywhere) 
@@ -158,7 +186,9 @@ Auto_beam_engraver::begin_beam ()
   assert (!stem_l_arr_p_);
   stem_l_arr_p_ = new Array<Stem*>;
   assert (!grouping_p_);
-  grouping_p_ = new Rhythmic_grouping;
+  grouping_p_ = new Beaming_info_list;
+  beam_start_moment_ = now_mom ();
+  beam_start_location_ = timer_l_->time_.whole_in_measure_;
 }
 
 Beam*
@@ -205,9 +235,8 @@ Auto_beam_engraver::typeset_beam ()
 {
   if (finished_beam_p_)
     {
-      Rhythmic_grouping const * rg_C = get_staff_info().rhythmic_C_;
-      rg_C->extend (finished_grouping_p_->interval());
-      finished_beam_p_->set_grouping (*rg_C, *finished_grouping_p_);
+      finished_grouping_p_->beamify ();
+      finished_beam_p_->set_beaming (finished_grouping_p_);
       typeset_element (finished_beam_p_);
       finished_beam_p_ = 0;
     
@@ -246,85 +275,73 @@ Auto_beam_engraver::same_grace_state_b (Score_element* e)
 void
 Auto_beam_engraver::acknowledge_element (Score_element_info info)
 {
+  if (!same_grace_state_b (info.elem_l_) || !timer_l_)
+    return;
+  
   if (stem_l_arr_p_)
     {
       if (Beam *b = dynamic_cast<Beam *> (info.elem_l_))
        {
-         if (same_grace_state_b (b))
-           junk_beam ();
+         junk_beam ();
        }
       else if (Bar *b = dynamic_cast<Bar *> (info.elem_l_))
        {
-         if (same_grace_state_b (b))
-           junk_beam ();
+         junk_beam ();
        }
-      else if (Rhythmic_req *rhythmic_req = dynamic_cast <Rhythmic_req *> (info.req_l_))
+      else if (Rest* rest_l = dynamic_cast<Rest *> (info.elem_l_))
        {
-         if (Rest* rest_l = dynamic_cast<Rest *> (info.elem_l_))
+         end_beam ();
+       }
+      else if (Stem* stem_l = dynamic_cast<Stem *> (info.elem_l_))
+       {
+         Rhythmic_req *rhythmic_req = dynamic_cast <Rhythmic_req *> (info.req_l_);
+         if (!rhythmic_req)
            {
-             if (same_grace_state_b (rest_l))
-               end_beam ();
+             programming_error ("Stem must have rhythmic structure");
+             return;
            }
-         else if (Stem* stem_l = dynamic_cast<Stem *> (info.elem_l_))
+         
+         if (stem_l->beam_l_)
            {
+             junk_beam ();
+             return ;
+           }
+             
              /*
-               if we're a nice grace beam, but the new note is regular,
-               gracefully end beam, and consider starting a regular one.
-              */
+               now that we have last_add_mom_, perhaps we can (should) do away
+               with these individual junk_beams
+             */
+
+         int durlog  =rhythmic_req->duration_.durlog_i_;
+         if (durlog <= 2)
+           end_beam ();
+         else 
+           {
              /*
-               When does that happen !? --hwn
-              */
-#if 0
-             if (stem_l_arr_p_ && stem_l_arr_p_->size ()
-                 && grace_b (stem_l_arr_p_->top ())
-                 && !grace_b (stem_l))
+               if shortest duration would change
+               reconsider ending/starting beam first.
+             */
+             Moment mom = rhythmic_req->duration_.length_mom ();
+             consider_end_and_begin (mom);
+             if (!stem_l_arr_p_)
+               return;
+             if (mom < shortest_mom_)
                {
-                   end_beam ();
-                   consider_end_and_begin ();
-                   if (!stem_l_arr_p_)
-                     return;
-               }
-#endif
-             if (same_grace_state_b (stem_l))
-               {
-                 if (stem_l->beam_l_)
-                   junk_beam ();
-                 /*
-                   now that we have last_add_mom_, perhaps we can (should) do away
-                   with these individual junk_beams
-                 */
-                 else if (rhythmic_req->duration_.durlog_i_ <= 2)
-                   end_beam ();
-                 else 
+                 if (stem_l_arr_p_->size ())
                    {
-                     Moment start = get_staff_info().time_C_->whole_in_measure_;
-                     if (!grouping_p_->child_fit_b (start))
-                       end_beam ();
-                     else
-                       {
-                         /*
-                           if shortest duration would change
-                           reconsider ending/starting beam first.
-                         */
-                         Moment mom = rhythmic_req->duration_.length_mom ();
-                         if (mom < shortest_mom_)
-                           {
-                             if (stem_l_arr_p_->size ())
-                               {
-                                 shortest_mom_ = mom;
-                                 consider_end_and_begin ();
-                               }
-                             shortest_mom_ = mom;
-                           }
-                         grouping_p_->add_child (start, rhythmic_req->length_mom ());
-                         
-                         stem_l_arr_p_->push (stem_l);
-                         Moment now = now_mom ();
-                         last_add_mom_ = now;
-                         extend_mom_ = extend_mom_ >? now + rhythmic_req->length_mom ();
-                       }
+                     shortest_mom_ = mom;
+                     consider_end_and_begin (shortest_mom_);
+                     if (!stem_l_arr_p_)
+                       return;
                    }
+                 shortest_mom_ = mom;
                }
+             Moment now = now_mom ();
+
+             grouping_p_->add_stem (now - beam_start_moment_ + beam_start_location_, durlog - 2);
+             stem_l_arr_p_->push (stem_l);
+             last_add_mom_ = now;
+             extend_mom_ = extend_mom_ >? now + rhythmic_req->length_mom ();
            }
        }
     }