+ void paint_static (wxDC& dc, wxGraphicsContext* gc);
+ void paint_column_labels (wxDC& dc, wxGraphicsContext* gc);
+ void paint_column_lines (wxGraphicsContext* gc);
+ void paint_row_labels (wxDC& dc, wxGraphicsContext* gc);
+ void paint_row_lines (wxGraphicsContext* gc);
+ void paint_indicators (wxDC& dc);
+ void size (wxSizeEvent &);
+ void scroll ();