+ int owner_visual_v_offset() const;
+
+ void restack_items();
+
+ /**
+ * Returns the number of nested parents that this row item owner has.
+ */
+ unsigned int depth() const;
+
+ void ungroup();
+
+public:
+ void appearance_changed(bool label, bool content);
+
+ void extents_changed(bool horz, bool vert);