virtual bool IsSelected(const wxTreeItemId& item) const = 0;
// is item text in bold font?
virtual bool IsBold(const wxTreeItemId& item) const = 0;
+#if wxABI_VERSION >= 20801
+ // is the control empty?
+ bool IsEmpty() const;
+#endif // wxABI 2.8.1+
+
// number of children
// ------------------
void ExpandAll();
// collapse the item without removing its children
virtual void Collapse(const wxTreeItemId& item) = 0;
+#if wxABI_VERSION >= 20801
+ // collapse the item and all its childs and thats childs
+ void CollapseAllChildren(const wxTreeItemId& item);
+ // collapse all items
+ void CollapseAll();
+#endif // wxABI 2.8.1+
// collapse the item and remove all children
virtual void CollapseAndReset(const wxTreeItemId& item) = 0;
// toggles the current state