Creditmemo.php

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Downloadable\Model\Sales\Order\Pdf\Items;

/**
 * Order Creditmemo Downloadable Pdf Items renderer
 * @api
 * @since 100.0.2
 */
class Creditmemo extends \Magento\Downloadable\Model\Sales\Order\Pdf\Items\AbstractItems
{
    /**
     * @var \Magento\Framework\Stdlib\StringUtils
     */
    protected $string;

    /**
     * @param \Magento\Framework\Model\Context $context
     * @param \Magento\Framework\Registry $registry
     * @param \Magento\Tax\Helper\Data $taxData
     * @param \Magento\Framework\Filesystem $filesystem
     * @param \Magento\Framework\Filter\FilterManager $filterManager
     * @param \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig
     * @param \Magento\Downloadable\Model\Link\PurchasedFactory $purchasedFactory
     * @param \Magento\Downloadable\Model\ResourceModel\Link\Purchased\Item\CollectionFactory $itemsFactory
     * @param \Magento\Framework\Stdlib\StringUtils $string
     * @param \Magento\Framework\Model\ResourceModel\AbstractResource $resource
     * @param \Magento\Framework\Data\Collection\AbstractDb $resourceCollection
     * @param array $data
     * @SuppressWarnings(PHPMD.ExcessiveParameterList)
     */
    public function __construct(
        \Magento\Framework\Model\Context $context,
        \Magento\Framework\Registry $registry,
        \Magento\Tax\Helper\Data $taxData,
        \Magento\Framework\Filesystem $filesystem,
        \Magento\Framework\Filter\FilterManager $filterManager,
        \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
        \Magento\Downloadable\Model\Link\PurchasedFactory $purchasedFactory,
        \Magento\Downloadable\Model\ResourceModel\Link\Purchased\Item\CollectionFactory $itemsFactory,
        \Magento\Framework\Stdlib\StringUtils $string,
        \Magento\Framework\Model\ResourceModel\AbstractResource $resource = null,
        \Magento\Framework\Data\Collection\AbstractDb $resourceCollection = null,
        array $data = []
    ) {
        $this->string = $string;
        parent::__construct(
            $context,
            $registry,
            $taxData,
            $filesystem,
            $filterManager,
            $scopeConfig,
            $purchasedFactory,
            $itemsFactory,
            $resource,
            $resourceCollection,
            $data
        );
    }

    /**
     * Draw item line
     *
     * @return void
     */
    public function draw()
    {
        $order = $this->getOrder();
        $item = $this->getItem();
        $pdf = $this->getPdf();
        $page = $this->getPage();
        $lines = [];

        // draw Product name
        $lines[0] = [['text' => $this->string->split($item->getName(), 35, true, true), 'feed' => 35]];

        // draw SKU
        $lines[0][] = [
            'text' => $this->string->split($this->getSku($item), 17),
            'feed' => 255,
            'align' => 'right',
        ];

        // draw Total (ex)
        $lines[0][] = [
            'text' => $order->formatPriceTxt($item->getRowTotal()),
            'feed' => 330,
            'font' => 'bold',
            'align' => 'right',
        ];

        // draw Discount
        $lines[0][] = [
            'text' => $order->formatPriceTxt(-$item->getDiscountAmount()),
            'feed' => 380,
            'font' => 'bold',
            'align' => 'right',
        ];

        // draw QTY
        $lines[0][] = ['text' => $item->getQty() * 1, 'feed' => 445, 'font' => 'bold', 'align' => 'right'];

        // draw Tax
        $lines[0][] = [
            'text' => $order->formatPriceTxt($item->getTaxAmount()),
            'feed' => 495,
            'font' => 'bold',
            'align' => 'right',
        ];

        // draw Total (inc)
        $subtotal = $item->getRowTotal() +
            $item->getTaxAmount() +
            $item->getDiscountTaxCompensationAmount() -
            $item->getDiscountAmount();
        $lines[0][] = [
            'text' => $order->formatPriceTxt($subtotal),
            'feed' => 565,
            'font' => 'bold',
            'align' => 'right',
        ];

        // draw options
        $options = $this->getItemOptions();
        if ($options) {
            foreach ($options as $option) {
                // draw options label
                $lines[][] = [
                    'text' => $this->string->split($this->filterManager->stripTags($option['label']), 40, true, true),
                    'font' => 'italic',
                    'feed' => 35,
                ];

                // draw options value
                $printValue = isset(
                    $option['print_value']
                ) ? $option['print_value'] : $this->filterManager->stripTags(
                    $option['value']
                );
                $lines[][] = ['text' => $this->string->split($printValue, 30, true, true), 'feed' => 40];
            }
        }

        // downloadable Items
        $purchasedItems = $this->getLinks()->getPurchasedItems();

        // draw Links title
        $lines[][] = [
            'text' => $this->string->split($this->getLinksTitle(), 70, true, true),
            'font' => 'italic',
            'feed' => 35,
        ];

        // draw Links
        foreach ($purchasedItems as $link) {
            $lines[][] = ['text' => $this->string->split($link->getLinkTitle(), 50, true, true), 'feed' => 40];
        }

        $lineBlock = ['lines' => $lines, 'height' => 20];

        $page = $pdf->drawLineBlocks($page, [$lineBlock], ['table_header' => true]);
        $this->setPage($page);
    }
}