public function setStyle($cellRange, $fontFamily = 'Arial', $fontSize = 10, $colorRGB = '00000000', $bold = false, $italic = false, $underline = false)
{
require_once \GO::config()->root_path . 'go/vendor/PHPExcel/PHPExcel/Style.php';
require_once \GO::config()->root_path . 'go/vendor/PHPExcel/PHPExcel/Style/Font.php';
require_once \GO::config()->root_path . 'go/vendor/PHPExcel/PHPExcel/Style/Color.php';
$colorObj = new \PHPExcel_Style_Color();
$colorObj->setRGB($colorRGB);
$fontObj = new \PHPExcel_Style_Font();
$fontObj->setName($fontFamily);
$fontObj->setSize($fontSize);
$fontObj->setColor($colorObj);
$fontObj->setBold($bold);
$fontObj->setItalic($italic);
$fontObj->setUnderline($underline);
$styleObj = new \PHPExcel_Style();
$styleObj->setFont($fontObj);
$this->getActiveSheet()->setSharedStyle($styleObj, $cellRange);
}
