// render row header w/ columnspan = 2
// as in this case we ask the row header layer for the cell position
// and the row header layer asks his data provider for the column
// count
// which should always return 1, we ask for row position 0
ILayerCell cell = rowHeaderLayer.getCellByPosition(0, rowPosition);
if (cell != null) {
cell = new TransformedLayerCell(cell) {
@Override
public ILayer getLayer() {
return RowGroupHeaderLayer.this;