X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fcollision-engraver.cc;h=66813fb37ce70629dd7e0b374cd9be5e87b391a2;hb=26380ed75fbd7b32781715c043dfa5dd96dfbe4a;hp=7f361c5d8ec0a26bbb5e49a232c6c2b777ba358e;hpb=df4a7c4a55148e065d878dcc2f7e09ac27ea9c32;p=lilypond.git

diff --git a/lily/collision-engraver.cc b/lily/collision-engraver.cc
index 7f361c5d8e..66813fb37c 100644
--- a/lily/collision-engraver.cc
+++ b/lily/collision-engraver.cc
@@ -1,81 +1,73 @@
 /*
-  collision-reg.cc -- implement Collision_engraver
+  collision-engraver.cc -- implement Collision_engraver
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
 #include "note-column.hh"
-#include "collision.hh"
+#include "note-collision.hh"
 
 #include "engraver.hh"
 #include "axis-group-interface.hh"
 
-/*
-  collect Note_column, and as soon as there are 2 or more, put them in
-  a collision object.  */
-class Collision_engraver : public Engraver {
-  Item * col_p_;
-  Link_array<Grob> note_column_l_arr_;
+class Collision_engraver : public Engraver
+{
+  Item *col_;
+  Link_array<Grob> note_columns_;
 
 protected:
   virtual void acknowledge_grob (Grob_info);
-  virtual void create_grobs ();
-  virtual void stop_translation_timestep();
+  virtual void process_acknowledged_grobs ();
+  virtual void stop_translation_timestep ();
 public:
-  VIRTUAL_COPY_CONS(Translator);
-  Collision_engraver();
+  TRANSLATOR_DECLARATIONS (Collision_engraver);
 };
 
-
 void
-Collision_engraver::create_grobs ()
+Collision_engraver::process_acknowledged_grobs ()
 {
-  if (col_p_ || note_column_l_arr_.size () < 2)
-    return ;
-  if (!col_p_) 
+  if (col_ || note_columns_.size () < 2)
+    return;
+  if (!col_)
     {
-      col_p_ = new Item (get_property ("NoteCollision"));
-      Axis_group_interface::set_interface (col_p_);
-      Axis_group_interface::set_axes (col_p_, X_AXIS, Y_AXIS);
-
-      announce_grob (col_p_,0);
+      col_ = make_item ("NoteCollision", SCM_EOL);
     }
-  
-  for (int i=0; i< note_column_l_arr_.size (); i++)
-    Collision::add_column (col_p_,note_column_l_arr_[i]);
+
+  for (int i = 0; i < note_columns_.size (); i++)
+    Note_collision_interface::add_column (col_, note_columns_[i]);
 }
 
 void
 Collision_engraver::acknowledge_grob (Grob_info i)
 {
-  if (Note_column::has_interface (i.elem_l_))
+  if (Note_column::has_interface (i.grob ()))
     {
       /*should check Y axis? */
-      if (Note_column::rest_b (i.elem_l_) || i.elem_l_->parent_l(X_AXIS))
-	return ;
+      if (Note_column::has_rests (i.grob ()) || i.grob ()->get_parent (X_AXIS))
+	return;
 
-      note_column_l_arr_.push (i.elem_l_);
+      note_columns_.push (i.grob ());
     }
 }
 
 void
-Collision_engraver::stop_translation_timestep()
+Collision_engraver::stop_translation_timestep ()
 {
-  if (col_p_) 
-    {
-      typeset_grob (col_p_);
-      col_p_ =0;
-    }
-  note_column_l_arr_.clear ();
+  col_ = 0;
+  note_columns_.clear ();
 }
 
-Collision_engraver::Collision_engraver()
+Collision_engraver::Collision_engraver ()
 {
-  col_p_ =0;
+  col_ = 0;
 }
 
-
-
-ADD_THIS_TRANSLATOR(Collision_engraver);
+ADD_TRANSLATOR (Collision_engraver,
+		/* descr */ "Collect NoteColumns, and as soon as there are two or more, put them in a NoteCollision object.",
+		/* creats*/ "NoteCollision",
+		/* accepts */ "",
+		/* acks  */ "note-column-interface",
+		/* reads */ "",
+		/* write */ "");