1 files changed, 55 insertions, 0 deletions
diff --git a/lily/note-column-reg.cc b/lily/note-column-reg.cc
new file mode 100644
index 0000000000..1263ca1c6a
--- /dev/null
+++ b/lily/note-column-reg.cc
@@ -0,0 +1,55 @@
+/*
+  note-column-reg.cc -- implement Note_column_register
+
+  source file of the LilyPond music typesetter
+
+  (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+*/
+
+#include "note-column-reg.hh"
+#include "notehead.hh"
+#include "stem.hh"
+#include "note-column.hh"
+#include "script.hh"
+
+bool
+Note_column_register::acceptable_elem_b(Staff_elem const*elem_C)const
+{
+    char const*nC = elem_C->name();
+    return (nC == Script::static_name() || nC == Notehead::static_name() 
+	    || nC == Stem::static_name());
+}
+
+void
+Note_column_register::acknowledge_element(Staff_elem_info i)
+{
+    if (!acceptable_elem_b(i.elem_l_))
+	return;
+
+    if (!ncol_p_)
+	ncol_p_ = new Note_column;
+
+    char const*nC = i.elem_l_->name();
+
+    if (nC == Script::static_name())
+	ncol_p_->add((Script*)i.elem_l_);
+    else if (nC == Notehead::static_name())
+	ncol_p_->add((Notehead*)i.elem_l_);
+    else if (nC == Stem::static_name())
+	ncol_p_->add((Stem*)i.elem_l_);
+}
+
+void
+Note_column_register::pre_move_processing()
+{
+    if (ncol_p_) {
+	typeset_element(ncol_p_);
+	ncol_p_ =0;
+    }
+}
+Note_column_register::Note_column_register()
+{
+    ncol_p_=0;
+}
+IMPLEMENT_STATIC_NAME(Note_column_register);
+ADD_THIS_REGISTER(Note_column_register);