+void
+Note_column::do_substitute_dependency (Score_element*o, Score_element*n)
+{
+ if (stem_l_ == o)
+ {
+ stem_l_ = n ? dynamic_cast<Stem *> (n):0;
+ }
+ if (dynamic_cast<Note_head *> (o))
+ {
+ head_l_arr_.substitute (dynamic_cast<Note_head *> (o),
+ (n)? dynamic_cast<Note_head *> (n) : 0);
+ }
+ Script_column::do_substitute_dependency (o,n);
+ if (dynamic_cast<Rest *> (o))
+ {
+ rest_l_arr_.substitute (dynamic_cast<Rest *> (o),
+ (n)? dynamic_cast<Rest *> (n) : 0);
+ }
+}
+
+void
+Note_column::add_head (Rhythmic_head *h)
+{
+ if (dynamic_cast<Rest *> (h))
+ {
+ rest_l_arr_.push ((Rest*)h);
+ add_support (h);
+ }
+ if (dynamic_cast<Note_head *> (h))
+ {
+ head_l_arr_.push ((Note_head*) h);
+ add_support (h);
+ }
+}
+
+/**
+ translate the rest symbols
+ */
+void
+Note_column::translate_rests (int dy_i)
+{
+ invalidate_cache (Y_AXIS);
+ for (int i=0; i < rest_l_arr_.size(); i++)
+ rest_l_arr_[i]->position_i_ += dy_i;
+}
+
+void
+Note_column::do_print() const
+{
+#ifndef NPRINT
+ DOUT << "rests: " << rest_l_arr_.size() << ", ";
+ DOUT << "heads: " << head_l_arr_.size();
+#endif
+}
+
+void
+Note_column::set_dotcol (Dot_column *d)
+{
+ add_element (d);
+}