PHP Decode

?><?php
/**
 * Magestore
 * 
 * NOTICE OF LICENSE
 * 
 * This source file is subject to the Magestore.com license that is
 * available through the world-wide-web at this URL:
 * http://www.magestore.com/license-agreement.html
 * 
 * DISCLAIMER
 * 
 * Do not edit or add to this file if you wish to upgrade this extension to newer
 * version in the future.
 * 
 * @category    Magestore
 * @package     Magestore_RewardPoints
 * @copyright   Copyright (c) 2012 Magestore (http://www.magestore.com/)
 * @license     http://www.magestore.com/license-agreement.html
 */

/**
 * Rewardpoints Rewrite to caculate taxt for discount
 * 
 * @category    Magestore
 * @package     Magestore_RewardPoints
 * @author      Magestore Developer
 */
class Magestore_RewardPoints_Model_Total_Quote_Tax extends Mage_Tax_Model_Sales_Total_Quote_Tax
{
    /**
     * Calculate tax for Quote (total)
     * 
     * @param type $item
     * @param type $rate
     * @param type $taxGroups
     * @return Magestore_RewardPoints_Model_Total_Quote_Tax
     */
    protected function _aggregateTaxPerRate($item, $rate, &$taxGroups) {
        $discount       = $item->getDiscountAmount();
        $baseDiscount   = $item->getBaseDiscountAmount();
        $item->setDiscountAmount($discount+$item->getAffiliateplusAmount()+$item->getRewardpointsDiscount());
        $item->setBaseDiscountAmount($baseDiscount+$item->getBaseAffiliateplusAmount()+$item->getRewardpointsBaseDiscount());
        
        parent::_aggregateTaxPerRate($item, $rate, $taxGroups);
        
        $item->setDiscountAmount($discount);
        $item->setBaseDiscountAmount($baseDiscount);
        return $this;
    }
    
    /**
     * Calculate tax for each product
     * 
     * @param Mage_Sales_Model_Quote_Item_Abstract $item
     * @param type $rate
     * @return Magestore_RewardPoints_Model_Total_Quote_Tax
     */
    protected function _calcUnitTaxAmount(Mage_Sales_Model_Quote_Item_Abstract $item, $rate) {
        $discount       = $item->getDiscountAmount();
        $baseDiscount   = $item->getBaseDiscountAmount();
        $item->setDiscountAmount($discount+$item->getAffiliateplusAmount()+$item->getRewardpointsDiscount());
        $item->setBaseDiscountAmount($baseDiscount+$item->getBaseAffiliateplusAmount()+$item->getRewardpointsBaseDiscount());
        
        parent::_calcUnitTaxAmount($item, $rate);
        
        $item->setDiscountAmount($discount);
        $item->setBaseDiscountAmount($baseDiscount);
        return $this;
    }
    
    /**
     * Calculate tax for each item
     * 
     * @param type $item
     * @param type $rate
     * @return Magestore_RewardPoints_Model_Total_Quote_Tax
     */
    protected function _calcRowTaxAmount($item, $rate) {
        $discount       = $item->getDiscountAmount();
        $baseDiscount   = $item->getBaseDiscountAmount();
        $item->setDiscountAmount($discount+$item->getAffiliateplusAmount()+$item->getRewardpointsDiscount());
        $item->setBaseDiscountAmount($baseDiscount+$item->getBaseAffiliateplusAmount()+$item->getRewardpointsBaseDiscount());
        
        parent::_calcRowTaxAmount($item, $rate);
        
        $item->setDiscountAmount($discount);
        $item->setBaseDiscountAmount($baseDiscount);
        return $this;
    }
    
    /**
     * Calculate tax for shipping amount
     * 
     * @param Mage_Sales_Model_Quote_Address $address
     * @param type $taxRateRequest
     */
    protected function _calculateShippingTax(Mage_Sales_Model_Quote_Address $address, $taxRateRequest) {
        $discount       = $address->getShippingDiscountAmount();
        $baseDiscount   = $address->getBaseShippingDiscountAmount();
        $address->setShippingDiscountAmount($discount+$address->getRewardpointsAmount());
        $address->setBaseShippingDiscountAmount($baseDiscount+$address->getRewardpointsBaseAmount());
        
        parent::_calculateShippingTax($address, $taxRateRequest);
        
        $address->setShippingDiscountAmount($discount);
        $address->setBaseShippingDiscountAmount($baseDiscount);
        return $this;
    }
}