<?php
/**
 * This file is part of PHPPresentation - A pure PHP library for reading and writing
 * presentations documents.
 *
 * PHPPresentation is free software distributed under the terms of the GNU Lesser
 * General Public License version 3 as published by the Free Software Foundation.
 *
 * For the full copyright and license information, please read the LICENSE
 * file that was distributed with this source code. For the full list of
 * contributors, visit https://github.com/PHPOffice/PHPPresentation/contributors.
 *
 * @link        https://github.com/PHPOffice/PHPPresentation
 * @copyright   2009-2015 PHPPresentation contributors
 * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
 */

namespace PhpOffice\PhpPresentation\Shape\Chart\Type;

use PhpOffice\PhpPresentation\ComparableInterface;

/**
 * \PhpOffice\PhpPresentation\Shape\Chart\Type\Area
 */
class Area extends AbstractType implements ComparableInterface
{
    /**
     * Get hash code
     *
     * @return string Hash code
     */
    public function getHashCode()
    {
        $hash = '';
        foreach ($this->getSeries() as $series) {
            $hash .= $series->getHashCode();
        }
        return md5($hash . __CLASS__);
    }
}
