<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category    Mage
 * @package     Mage_Tax
 * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Subtotal Total Row Renderer
 *
 * @author Magento Core Team <core@magentocommerce.com>
 */

class Mage_Tax_Block_Checkout_Grandtotal extends Mage_Checkout_Block_Total_Default
{
    protected $_template = 'tax/checkout/grandtotal.phtml';

    /**
     * Check if we have include tax amount between grandtotal incl/excl tax
     *
     * @return bool
     */
    public function includeTax()
    {
        if ($this->getTotal()->getAddress()->getGrandTotal()) {
            return Mage::getSingleton('tax/config')->displayCartTaxWithGrandTotal($this->getStore());
        }
        return false;
    }

    /**
     * Get grandtotal exclude tax
     *
     * @return float
     */
    public function getTotalExclTax()
    {
        $excl = $this->getTotal()->getAddress()->getGrandTotal()-$this->getTotal()->getAddress()->getTaxAmount();
        $excl = max($excl, 0);
        return $excl;
    }
}