IRowGroup<T> group = RowGroupUtils.getRowGroupForRowIndex(model,
rowIndex);
if (RowGroupUtils.isCollapsed(model, group)) {
stack.addLabelOnTop(DefaultRowGroupHeaderLayerConfiguration.GROUP_COLLAPSED_CONFIG_TYPE);
} else {
stack.addLabelOnTop(DefaultRowGroupHeaderLayerConfiguration.GROUP_EXPANDED_CONFIG_TYPE);
}
List<Integer> selectedRowIndexes = convertToRowIndexes(selectionLayer
.getFullySelectedRowPositions());
if (selectedRowIndexes.contains(rowIndex)) {