<?php

namespace PhpOffice\PhpSpreadsheet\Reader\Excel2007;

/**
 * Copyright (c) 2006 - 2016 PhpSpreadsheet
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PhpSpreadsheet
 * @copyright  Copyright (c) 2006 - 2016 PhpSpreadsheet (https://github.com/PHPOffice/PhpSpreadsheet)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
 * @version    ##VERSION##, ##DATE##
 */
class Theme
{
    /**
     * Theme Name
     *
     * @var string
     */
    private $themeName;

    /**
     * Colour Scheme Name
     *
     * @var string
     */
    private $colourSchemeName;

    /**
     * Colour Map indexed by position
     *
     * @var array of string
     */
    private $colourMapValues;

    /**
     * Colour Map
     *
     * @var array of string
     */
    private $colourMap;

    /**
     * Create a new Theme
     */
    public function __construct($themeName, $colourSchemeName, $colourMap)
    {
        // Initialise values
        $this->themeName = $themeName;
        $this->colourSchemeName = $colourSchemeName;
        $this->colourMap = $colourMap;
    }

    /**
     * Get Theme Name
     *
     * @return string
     */
    public function getThemeName()
    {
        return $this->themeName;
    }

    /**
     * Get colour Scheme Name
     *
     * @return string
     */
    public function getColourSchemeName()
    {
        return $this->colourSchemeName;
    }

    /**
     * Get colour Map Value by Position
     *
     * @return string
     */
    public function getColourByIndex($index = 0)
    {
        if (isset($this->colourMap[$index])) {
            return $this->colourMap[$index];
        }

        return null;
    }

    /**
     * Implement PHP __clone to create a deep clone, not just a shallow copy.
     */
    public function __clone()
    {
        $vars = get_object_vars($this);
        foreach ($vars as $key => $value) {
            if ((is_object($value)) && ($key != '_parent')) {
                $this->$key = clone $value;
            } else {
                $this->$key = $value;
            }
        }
    }
}
