+/// MetadataField that contains longform text
+class LongTextMetadataField : public TextMetadataField
+{
+public:
+ LongTextMetadataField (Getter getter, Setter setter, std::string const & field_name, guint width = 50);
+ MetadataPtr copy ();
+
+ Gtk::Widget & edit_widget ();
+private:
+ void update_value ();
+
+ Gtk::TextView* tview;
+};
+