function calculate($productTypeId, &$objCustomer, $use_point = 0,
        $deliv_pref = '', $charge = 0, $discount = 0, $deliv_id = 0
    ) {

        $results = array();
        $total_point = $this->getAllProductsPoint($productTypeId);
        $results['tax'] = $this->getAllProductsTax($productTypeId);
        $results['subtotal'] = $this->getAllProductsTotal($productTypeId);
        $results['deliv_fee'] = 0;

        // 商品ごとの送料を加算
        if (OPTION_PRODUCT_DELIV_FEE == 1) {
            $cartItems = $this->getCartList($productTypeId);
            foreach ($cartItems as $arrItem) {
                $results['deliv_fee'] += $arrItem['productsClass']['deliv_fee'] * $arrItem['quantity'];
            }
        }

        // 配送業者の送料を加算
        if (OPTION_DELIV_FEE == 1
            && !SC_Utils_Ex::isBlank($deliv_pref)
            && !SC_Utils_Ex::isBlank($deliv_id)) {
            $results['deliv_fee'] += $this->sfGetDelivFee($deliv_pref, $deliv_id);
        }

        // 送料無料チェック
        if ($this->isDelivFree($productTypeId)) {
            $results['deliv_fee'] = 0;
        }

        // 合計を計算
        $results['total'] = $results['subtotal'];
        $results['total'] += $results['deliv_fee'];
        $results['total'] += $charge;
        $results['total'] -= $discount;

        // お支払い合計
        $results['payment_total'] = $results['total'] - $use_point * POINT_VALUE;

        // 加算ポイントの計算
        if (USE_POINT !== false) {
            $results['add_point'] = SC_Helper_DB_Ex::sfGetAddPoint($total_point, $use_point);
            if ($objCustomer != '') {
                // 誕生日月であった場合
                if ($objCustomer->isBirthMonth()) {
                    $results['birth_point'] = BIRTH_MONTH_POINT;
                    $results['add_point'] += $results['birth_point'];
                }
            }
&#160; &#160; &#160; &#160; &#160; &#160; if ($results['add_point'] < 0) {
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; $results['add_point'] = 0;
&#160; &#160; &#160; &#160; &#160; &#160; }
&#160; &#160; &#160; &#160; }
&#160; &#160; &#160; &#160;&#160;
&#160; &#160; &#160; &#160; // hideki-s
&#160; &#160; &#160; &#160; $results['point_discount'] = 1234;
&#160; &#160; &#160; &#160;&#160;
&#160; &#160; &#160; &#160; return $results;
&#160; &#160; }