protected function renderRowCells(PHPRtfLite_Table_Row $row)
{
$rowIndex = $row->getRowIndex();
foreach ($this->getColumns() as $columnIndex => $column) {
$cell = $this->getCell($rowIndex, $columnIndex + 1);
if (!$cell->isHorizontalMerged()) {
$cell->render();
}
}
}