2003 -> 2004

[lilypond.git] / lily / collision-engraver.cc

diff --git a/lily/collision-engraver.cc b/lily/collision-engraver.cc
index 9b3218de78922fd0eadd0c253a7270bba2d842d3..5bece2105c66ad22c8a4dfdc07bff633b01d7d71 100644 (file)
--- a/lily/collision-engraver.cc
+++ b/lily/collision-engraver.cc
@@ -3,11 +3,11 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1997--2004 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"
@@ -15,67 +15,71 @@
 /*
   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<Score_element> note_column_l_arr_;
+class Collision_engraver : public Engraver
+{
+  Item * col_;
+  Link_array<Grob> note_columns_;
 
 protected:
-  virtual void acknowledge_element (Score_element_info);
-  virtual void process_acknowledged ();
-  virtual void do_pre_move_processing();
+  virtual void acknowledge_grob (Grob_info);
+  virtual void process_acknowledged_grobs ();
+  virtual void stop_translation_timestep ();
 public:
-  VIRTUAL_COPY_CONS(Translator);
-  Collision_engraver();
+  TRANSLATOR_DECLARATIONS(Collision_engraver);
 };
 
 
 void
-Collision_engraver::process_acknowledged ()
+Collision_engraver::process_acknowledged_grobs ()
 {
-  if (col_p_ || note_column_l_arr_.size () < 2)
+  if (col_ || note_columns_.size () < 2)
     return ;
-  if (!col_p_) 
+  if (!col_) 
     {
-      col_p_ = new Item (get_property ("basicCollisionProperties"));
-      Axis_group_interface::set_interface (col_p_);
-      Axis_group_interface::set_axes (col_p_, X_AXIS, Y_AXIS);
-
-      announce_element (Score_element_info (col_p_,0));
+      col_ = make_item ("NoteCollision");
+      announce_grob (col_, 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_element (Score_element_info i)
+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))
+      if (Note_column::rest_b (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::do_pre_move_processing()
+Collision_engraver::stop_translation_timestep ()
 {
-  if (col_p_) 
+  if (col_) 
     {
-      typeset_element (col_p_);
-      col_p_ =0;
+      typeset_grob (col_);
+      col_ =0;
     }
-  note_column_l_arr_.clear ();
+  note_columns_.clear ();
 }
 
-Collision_engraver::Collision_engraver()
+Collision_engraver::Collision_engraver ()
 {
-  col_p_ =0;
+  col_ =0;
 }
 
 
 
-ADD_THIS_TRANSLATOR(Collision_engraver);
+
+ENTER_DESCRIPTION(Collision_engraver,
+/* descr */       "",
+/* creats*/       "NoteCollision",
+/* accepts */     "",
+/* acks  */      "note-column-interface",
+/* reads */       "",
+/* write */       "");