protected function getCombinedStyle($obj)
{
if (!$obj instanceof TStyle) {
return array();
}
$style = $obj->getStyleFields();
$style = array_merge($style, $this->getStyleFromString($obj->getCustomStyle()));
if ($obj->hasFont()) {
$style = array_merge($style, $this->getStyleFromString($obj->getFont()->toString()));
}
return $style;
}