protected function writeLegend(XMLWriter $objWriter, Legend $subject)
{
// c:legend
$objWriter->startElement('c:legend');
// c:legendPos
$objWriter->startElement('c:legendPos');
$objWriter->writeAttribute('val', $subject->getPosition());
$objWriter->endElement();
// Write layout
$this->writeLayout($objWriter, $subject);
// c:overlay
$objWriter->startElement('c:overlay');
$objWriter->writeAttribute('val', '0');
$objWriter->endElement();
// c:spPr
$objWriter->startElement('c:spPr');
// Fill
$this->writeFill($objWriter, $subject->getFill());
// Border
if ($subject->getBorder()->getLineStyle() != Border::LINE_NONE) {
$this->writeBorder($objWriter, $subject->getBorder(), '');
}
$objWriter->endElement();
// c:txPr
$objWriter->startElement('c:txPr');
// a:bodyPr
$objWriter->writeElement('a:bodyPr', null);
// a:lstStyle
$objWriter->writeElement('a:lstStyle', null);
// a:p
$objWriter->startElement('a:p');
// a:pPr
$objWriter->startElement('a:pPr');
$objWriter->writeAttribute('algn', $subject->getAlignment()->getHorizontal());
$objWriter->writeAttribute('fontAlgn', $subject->getAlignment()->getVertical());
$objWriter->writeAttribute('marL', CommonDrawing::pixelsToEmu($subject->getAlignment()->getMarginLeft()));
$objWriter->writeAttribute('marR', CommonDrawing::pixelsToEmu($subject->getAlignment()->getMarginRight()));
$objWriter->writeAttribute('indent', CommonDrawing::pixelsToEmu($subject->getAlignment()->getIndent()));
$objWriter->writeAttribute('lvl', $subject->getAlignment()->getLevel());
// a:defRPr
$objWriter->startElement('a:defRPr');
$objWriter->writeAttribute('b', $subject->getFont()->isBold() ? 'true' : 'false');
$objWriter->writeAttribute('i', $subject->getFont()->isItalic() ? 'true' : 'false');
$objWriter->writeAttribute('strike', $subject->getFont()->isStrikethrough() ? 'sngStrike' : 'noStrike');
$objWriter->writeAttribute('sz', $subject->getFont()->getSize() * 100);
$objWriter->writeAttribute('u', $subject->getFont()->getUnderline());
$objWriter->writeAttributeIf($subject->getFont()->isSuperScript(), 'baseline', '30000');
$objWriter->writeAttributeIf($subject->getFont()->isSubScript(), 'baseline', '-25000');
// Font - a:solidFill
$objWriter->startElement('a:solidFill');
$this->writeColor($objWriter, $subject->getFont()->getColor());
$objWriter->endElement();
// Font - a:latin
$objWriter->startElement('a:latin');
$objWriter->writeAttribute('typeface', $subject->getFont()->getName());
$objWriter->endElement();
$objWriter->endElement();
$objWriter->endElement();
// a:endParaRPr
$objWriter->startElement('a:endParaRPr');
$objWriter->writeAttribute('lang', 'en-US');
$objWriter->writeAttribute('dirty', '0');
$objWriter->endElement();
$objWriter->endElement();
$objWriter->endElement();
$objWriter->endElement();
}