#include <memory>
#include <vector>
+#include "rowitemiterator.h"
+
namespace pv {
class SigSession;
class RowItemOwner
{
+public:
+ typedef std::vector< std::shared_ptr<RowItem> > item_list;
+ typedef RowItemIterator<RowItemOwner, RowItem> iterator;
+ typedef RowItemIterator<const RowItemOwner, RowItem> const_iterator;
+
public:
/**
* Returns the session of the onwer.
*/
virtual const pv::view::View* view() const = 0;
- virtual int owner_v_offset() const = 0;
+ virtual int owner_visual_v_offset() const = 0;
+
+ /**
+ * Returns the number of nested parents that this row item owner has.
+ */
+ virtual unsigned int depth() const = 0;
+
+ /**
+ * Returns a list of row items owned by this object.
+ */
+ virtual item_list& child_items();
/**
* Returns a list of row items owned by this object.
*/
- virtual const std::vector< std::shared_ptr<RowItem> >&
- child_items() const;
+ virtual const item_list& child_items() const;
/**
* Clears the list of child items.
*/
void remove_child_item(std::shared_ptr<RowItem> item);
- virtual void update_viewport() = 0;
+ /**
+ * Returns a depth-first iterator at the beginning of the child RowItem
+ * tree.
+ */
+ iterator begin();
+
+ /**
+ * Returns a depth-first iterator at the end of the child RowItem tree.
+ */
+ iterator end();
+
+ /**
+ * Returns a constant depth-first iterator at the beginning of the
+ * child RowItem tree.
+ */
+ const_iterator begin() const;
+
+ /**
+ * Returns a constant depth-first iterator at the end of the child
+ * RowItem tree.
+ */
+ const_iterator end() const;
+
+ /**
+ * Computes the vertical extents of the contents of this row item owner.
+ * @return A pair containing the minimum and maximum y-values.
+ */
+ std::pair<int, int> v_extents() const;
+
+ virtual void restack_items();
+
+public:
+ virtual void appearance_changed(bool label, bool content) = 0;
+
+ virtual void extents_changed(bool horz, bool vert) = 0;
private:
- std::vector< std::shared_ptr<RowItem> > _items;
+ item_list items_;
};
} // view