Add wxDirCtrl::GetPath().

This allows to retrieve the directory being affected by wxTreeCtrl event.

Closes #14790.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72819 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/dirctrlg.h

@@ -161,6 +161,8 @@ public:
     // If the path string has been used (we're at the leaf), done is set to true
     virtual wxTreeItemId FindChild(wxTreeItemId parentId, const wxString& path, bool& done);
 
+    wxString GetPath(wxTreeItemId itemId) const;
+
     // Resize the components of the control
     virtual void DoResize();