- std::string const& label () const { return _label; }
- std::string const& key () const { return _key; }
+ std::string const& label () const { return _label; }
+ std::string const& key () const { return _key; }
+ int col () const { return _col; }
+ int span () const { return _colspan; }
+
+ void set_col (int col) { _col = col; }
+ void set_span (int span) { _colspan = span; }