YetiForceCompany/YetiForcePDF

<?php

declare(strict_types=1);
/**
 * Trailer class.
 *
 * @package   YetiForcePDF\Objects
 *
 * @copyright YetiForce Sp. z o.o
 * @license   MIT
 * @author    Rafal Pospiech <r.pospiech@yetiforce.com>
 */

namespace YetiForcePDF\Objects;

/**
 * Class Font.
 */
class Trailer extends \YetiForcePDF\Objects\PdfObject
{
    /**
     * @var string
     */
    protected $basicType = 'Trailer';
    /**
     * Object name.
     *
     * @var string
     */
    protected $name = 'Trailer';
    /**
     * Root element.
     *
     * @var \YetiForcePDF\Objects\PdfObject
     */
    protected $root;
    /**
     * Number of objects in the document.
     *
     * @var int
     */
    protected $size = 0;

    /**
     * Set root object.
     *
     * @param \YetiForcePDF\Objects\PdfObject $root
     */
    public function setRootObject(PdfObject $root): self
    {
        $this->root = $root;
        return $this;
    }

    /**
     * Set document size - number of objects.
     *
     * @param int $size
     *
     * @return \YetiForcePDF\Objects\Trailer
     */
    public function setSize(int $size): self
    {
        $this->size = $size;
        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function render(): string
    {
        return implode("\n", [
            'trailer',
            '<<',
            '  /Root ' . $this->root->getReference(),
            '  /Info ' . $this->document->getMeta()->getReference(),
            '  /Size ' . $this->size,
            '>>',
        ]);
    }
}