X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fcluster-engraver.cc;h=c1cb5a40258384e2e1c960684d183c281ddd6f0d;hb=21f723292cdb8154f0255494360c25d48422dff6;hp=0730c28b2840b860ae31ed37d9b2da641ad28984;hpb=c659cb200486c2f908703696a1b2873e78c8160a;p=lilypond.git

diff --git a/lily/cluster-engraver.cc b/lily/cluster-engraver.cc
index 0730c28b28..c1cb5a4025 100644
--- a/lily/cluster-engraver.cc
+++ b/lily/cluster-engraver.cc
@@ -1,34 +1,39 @@
 /*
   cluster-engraver.cc -- implement Cluster_engraver
 
-  (c) 2002--2004 Juergen Reuter <reuter@ipd.uka.de>
+  (c) 2002--2006 Juergen Reuter <reuter@ipd.uka.de>
 
-  Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "engraver.hh"
 #include "spanner.hh"
 #include "note-head.hh"
 #include "note-column.hh"
-#include "group-interface.hh"
+#include "pointer-group-interface.hh"
+#include "pitch.hh"
+#include "stream-event.hh"
+#include "item.hh"
+
+#include "translator.icc"
 
 class Cluster_spanner_engraver : public Engraver
 {
 
 protected:
   TRANSLATOR_DECLARATIONS (Cluster_spanner_engraver);
-  virtual bool try_music (Music *);
-  virtual void process_music ();  
-  virtual void acknowledge_grob (Grob_info);
-  virtual void stop_translation_timestep ();
+  DECLARE_TRANSLATOR_LISTENER (cluster_note);
+  DECLARE_ACKNOWLEDGER (note_column);
+  void stop_translation_timestep ();
+  virtual void process_music ();
   virtual void finalize ();
 private:
-  Link_array<Music> cluster_notes_;
-  Item* beacon_;
+  vector<Stream_event*> cluster_notes_;
+  Item *beacon_;
 
   void typeset_grobs ();
   Spanner *spanner_;
-  Spanner * finished_spanner_ ;
+  Spanner *finished_spanner_;
 };
 
 Cluster_spanner_engraver::Cluster_spanner_engraver ()
@@ -54,15 +59,11 @@ Cluster_spanner_engraver::typeset_grobs ()
   beacon_ = 0;
 }
 
-bool
-Cluster_spanner_engraver::try_music (Music *m)
+IMPLEMENT_TRANSLATOR_LISTENER (Cluster_spanner_engraver, cluster_note);
+void
+Cluster_spanner_engraver::listen_cluster_note (Stream_event *ev)
 {
-  if (m->is_mus_type ("cluster-note-event"))
-    {
-      cluster_notes_.push (m);
-      return true;
-    }
-  return false;
+  cluster_notes_.push_back (ev);
 }
 
 void
@@ -72,31 +73,29 @@ Cluster_spanner_engraver::process_music ()
     {
       SCM c0scm = get_property ("middleCPosition");
 
-      int c0 =  scm_is_number (c0scm) ? scm_to_int (c0scm) : 0;
+      int c0 = scm_is_number (c0scm) ? scm_to_int (c0scm) : 0;
       int pmax = INT_MIN;
       int pmin = INT_MAX;
-      
-      for (int i = 0; i <cluster_notes_.size (); i++)
+
+      for (vsize i = 0; i < cluster_notes_.size (); i++)
 	{
-	  Pitch *pit =unsmob_pitch (cluster_notes_[i]->get_property ("pitch"));
+	  Pitch *pit = unsmob_pitch (cluster_notes_[i]->get_property ("pitch"));
 
-	  int p =( pit ? pit->steps () : 0) + c0;
+	  int p = (pit ? pit->steps () : 0) + c0;
 
-	  pmax = pmax >? p;
-	  pmin = pmin <? p;
+	  pmax = max (pmax, p);
+	  pmin = min (pmin, p);
 	}
-      
+
       beacon_ = make_item ("ClusterSpannerBeacon", cluster_notes_[0]->self_scm ());
       beacon_->set_property ("positions",
-				  scm_cons (scm_int2num (pmin),
-					    scm_int2num (pmax)));
+			     scm_cons (scm_from_int (pmin),
+				       scm_from_int (pmax)));
     }
 
   if (beacon_ && !spanner_)
-    {    
-      spanner_ = make_spanner ("ClusterSpanner", cluster_notes_[0]->self_scm () );
-    }
-  
+    spanner_ = make_spanner ("ClusterSpanner", cluster_notes_[0]->self_scm ());
+
   if (beacon_ && spanner_)
     {
       add_bound_item (spanner_, beacon_);
@@ -104,31 +103,27 @@ Cluster_spanner_engraver::process_music ()
     }
 }
 
-
 void
 Cluster_spanner_engraver::stop_translation_timestep ()
 {
   typeset_grobs ();
-
   cluster_notes_.clear ();
-  
 }
 
 void
-Cluster_spanner_engraver::acknowledge_grob (Grob_info info)
+Cluster_spanner_engraver::acknowledge_note_column (Grob_info info)
 {
-  if (!beacon_ && Note_column::has_interface (info.grob_))
+  if (!beacon_ && Note_column::has_interface (info.grob ()))
     {
       finished_spanner_ = spanner_;
       spanner_ = 0;
     }
 }
 
-ENTER_DESCRIPTION (Cluster_spanner_engraver,
-/* descr */	"Engraves a cluster using Spanner notation ",
-/* creats*/	"ClusterSpanner ClusterSpannerBeacon",
-/* accepts */	"cluster-note-event",
-/* acks  */	"note-column-interface",
-/* reads */	"",
-/* write */	"");
+ADD_ACKNOWLEDGER (Cluster_spanner_engraver, note_column);
+ADD_TRANSLATOR (Cluster_spanner_engraver,
+		/* doc */ 	"Engraves a cluster using Spanner notation ",
+		/* create */ 	"ClusterSpanner ClusterSpannerBeacon",
+		/* read */ 	"",
+		/* write */	"");