- void SetDimension( int x, int y, int width, int height );
+ void SetDimension(const wxPoint& pos, const wxSize& size)
+ {
+ m_position = pos;
+ m_size = size;
+ Layout();
+ }
+ void SetDimension(int x, int y, int width, int height)
+ { SetDimension(wxPoint(x, y), wxSize(width, height)); }
+
+ size_t GetItemCount() const { return m_children.GetCount(); }
+ bool IsEmpty() const { return m_children.IsEmpty(); }