X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fcollision-engraver.cc;h=52c811b6338bb13be863b459e5232e3858979a68;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=9094147cf4c8b26afb1df3f1fd5734bfbf6e6f2a;hpb=615a9212789c2cb2994748c023d0e19f3a83a0fd;p=lilypond.git

diff --git a/lily/collision-engraver.cc b/lily/collision-engraver.cc
index 9094147cf4..52c811b633 100644
--- a/lily/collision-engraver.cc
+++ b/lily/collision-engraver.cc
@@ -1,58 +1,85 @@
 /*
-  collision-reg.cc -- implement Collision_engraver
+  collision-engraver.cc -- implement Collision_engraver
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
+#include "engraver.hh"
 #include "note-column.hh"
-#include "collision-engraver.hh"
-#include "collision.hh"
+#include "note-collision.hh"
+#include "axis-group-interface.hh"
+#include "item.hh"
+
+class Collision_engraver : public Engraver
+{
+  Item *col_;
+  vector<Grob*> note_columns_;
+
+protected:
+  DECLARE_ACKNOWLEDGER (note_column);
+  void process_acknowledged ();
+  void stop_translation_timestep ();
+public:
+  TRANSLATOR_DECLARATIONS (Collision_engraver);
+};
 
 void
 Collision_engraver::process_acknowledged ()
 {
-   
-  if (col_p_ || note_column_l_arr_.size () < 2)
-      return ;
-  if (!col_p_) 
-    {
-      col_p_ = new Collision;
-      announce_element (Score_element_info (col_p_,0));
-    }
-  for (int i=0; i< note_column_l_arr_.size (); i++)
-    col_p_->add_column (note_column_l_arr_[i]);
+  if (col_ || note_columns_.size () < 2)
+    return;
+  if (!col_)
+    col_ = make_item ("NoteCollision", SCM_EOL);
+
+  for (vsize 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_note_column (Grob_info i)
 {
-  if (Note_column * c = dynamic_cast<Note_column *> (i.elem_l_))
+  if (Note_column::has_interface (i.grob ()))
     {
-      if (c->rest_b ())
-	return ;
+      /*should check Y axis? */
+      if (Note_column::has_rests (i.grob ()) || i.grob ()->get_parent (X_AXIS))
+	return;
 
-      note_column_l_arr_.push (c);
+      if (to_boolean (i.grob ()->get_property ("ignore-collision")))
+	return;
+      
+      note_columns_.push_back (i.grob ());
     }
 }
 
 void
-Collision_engraver::do_pre_move_processing()
+Collision_engraver::stop_translation_timestep ()
 {
-  if (col_p_) 
-    {
-      typeset_element (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;
 }
 
+#include "translator.icc"
+
+ADD_ACKNOWLEDGER (Collision_engraver, note_column);
+
+ADD_TRANSLATOR (Collision_engraver,
+		/* doc */
+		"Collect @code{NoteColumns}, and as soon as there are two or"
+		" more, put them in a @code{NoteCollision} object.",
+
+		/* create */
+		"NoteCollision ",
 
+		/* read */
+		"",
 
-ADD_THIS_TRANSLATOR(Collision_engraver);
+		/* write */
+		""
+		);