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271 lines
8.5 KiB
PHP
Executable File
271 lines
8.5 KiB
PHP
Executable File
<?php
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/**
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* This file is part of FPDI
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*
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* @package setasign\Fpdi
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* @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
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* @license http://opensource.org/licenses/mit-license The MIT License
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*/
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namespace setasign\Fpdi\Tcpdf;
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use setasign\Fpdi\FpdiTrait;
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use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
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use setasign\Fpdi\PdfParser\Filter\AsciiHex;
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use setasign\Fpdi\PdfParser\PdfParserException;
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use setasign\Fpdi\PdfParser\Type\PdfHexString;
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use setasign\Fpdi\PdfParser\Type\PdfIndirectObject;
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use setasign\Fpdi\PdfParser\Type\PdfNull;
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use setasign\Fpdi\PdfParser\Type\PdfNumeric;
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use setasign\Fpdi\PdfParser\Type\PdfStream;
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use setasign\Fpdi\PdfParser\Type\PdfString;
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use setasign\Fpdi\PdfParser\Type\PdfType;
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use setasign\Fpdi\PdfParser\Type\PdfTypeException;
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/**
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* Class Fpdi
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*
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* This class let you import pages of existing PDF documents into a reusable structure for TCPDF.
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*
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* @method _encrypt_data(int $n, string $s) string
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*/
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class Fpdi extends \TCPDF
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{
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use FpdiTrait {
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writePdfType as fpdiWritePdfType;
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useImportedPage as fpdiUseImportedPage;
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}
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/**
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* FPDI version
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*
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* @string
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*/
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const VERSION = '2.3.4';
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/**
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* A counter for template ids.
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*
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* @var int
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*/
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protected $templateId = 0;
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/**
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* The currently used object number.
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*
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* @var int|null
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*/
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protected $currentObjectNumber;
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protected function _enddoc()
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{
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parent::_enddoc();
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$this->cleanUp();
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}
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/**
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* Get the next template id.
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*
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* @return int
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*/
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protected function getNextTemplateId()
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{
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return $this->templateId++;
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}
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/**
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* Draws an imported page onto the page or another template.
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*
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* Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
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* aspect ratio.
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*
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* @param mixed $tpl The template id
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* @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array
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* with the keys "x", "y", "width", "height", "adjustPageSize".
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* @param float|int $y The ordinate of upper-left corner.
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* @param float|int|null $width The width.
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* @param float|int|null $height The height.
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* @param bool $adjustPageSize
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* @return array The size
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* @see FpdiTrait::getTemplateSize()
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*/
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public function useTemplate($tpl, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false)
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{
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return $this->useImportedPage($tpl, $x, $y, $width, $height, $adjustPageSize);
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}
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/**
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* Draws an imported page onto the page.
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*
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* Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
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* aspect ratio.
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*
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* @param mixed $pageId The page id
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* @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array
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* with the keys "x", "y", "width", "height", "adjustPageSize".
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* @param float|int $y The ordinate of upper-left corner.
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* @param float|int|null $width The width.
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* @param float|int|null $height The height.
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* @param bool $adjustPageSize
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* @return array The size.
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* @see Fpdi::getTemplateSize()
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*/
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public function useImportedPage($pageId, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false)
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{
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$size = $this->fpdiUseImportedPage($pageId, $x, $y, $width, $height, $adjustPageSize);
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if ($this->inxobj) {
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$importedPage = $this->importedPages[$pageId];
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$this->xobjects[$this->xobjid]['importedPages'][$importedPage['id']] = $pageId;
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}
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return $size;
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}
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/**
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* Get the size of an imported page.
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*
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* Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
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* aspect ratio.
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*
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* @param mixed $tpl The template id
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* @param float|int|null $width The width.
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* @param float|int|null $height The height.
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* @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P)
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*/
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public function getTemplateSize($tpl, $width = null, $height = null)
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{
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return $this->getImportedPageSize($tpl, $width, $height);
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}
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/**
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* @inheritdoc
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*/
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protected function _getxobjectdict()
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{
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$out = parent::_getxobjectdict();
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foreach ($this->importedPages as $key => $pageData) {
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$out .= '/' . $pageData['id'] . ' ' . $pageData['objectNumber'] . ' 0 R ';
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}
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return $out;
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}
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/**
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* @inheritdoc
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* @throws CrossReferenceException
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* @throws PdfParserException
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*/
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protected function _putxobjects()
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{
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foreach ($this->importedPages as $key => $pageData) {
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$this->currentObjectNumber = $this->_newobj();
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$this->importedPages[$key]['objectNumber'] = $this->currentObjectNumber;
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$this->currentReaderId = $pageData['readerId'];
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$this->writePdfType($pageData['stream']);
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$this->_put('endobj');
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}
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foreach (\array_keys($this->readers) as $readerId) {
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$parser = $this->getPdfReader($readerId)->getParser();
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$this->currentReaderId = $readerId;
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while (($objectNumber = \array_pop($this->objectsToCopy[$readerId])) !== null) {
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try {
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$object = $parser->getIndirectObject($objectNumber);
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} catch (CrossReferenceException $e) {
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if ($e->getCode() === CrossReferenceException::OBJECT_NOT_FOUND) {
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$object = PdfIndirectObject::create($objectNumber, 0, new PdfNull());
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} else {
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throw $e;
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}
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}
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$this->writePdfType($object);
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}
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}
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// let's prepare resources for imported pages in templates
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foreach ($this->xobjects as $xObjectId => $data) {
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if (!isset($data['importedPages'])) {
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continue;
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}
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foreach ($data['importedPages'] as $id => $pageKey) {
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$page = $this->importedPages[$pageKey];
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$this->xobjects[$xObjectId]['xobjects'][$id] = ['n' => $page['objectNumber']];
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}
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}
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parent::_putxobjects();
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$this->currentObjectNumber = null;
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}
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/**
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* Append content to the buffer of TCPDF.
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*
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* @param string $s
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* @param bool $newLine
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*/
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protected function _put($s, $newLine = true)
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{
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if ($newLine) {
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$this->setBuffer($s . "\n");
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} else {
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$this->setBuffer($s);
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}
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}
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/**
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* Begin a new object and return the object number.
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*
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* @param int|string $objid Object ID (leave empty to get a new ID).
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* @return int object number
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*/
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protected function _newobj($objid = '')
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{
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$this->_out($this->_getobj($objid));
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return $this->n;
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}
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/**
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* Writes a PdfType object to the resulting buffer.
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*
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* @param PdfType $value
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* @throws PdfTypeException
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*/
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protected function writePdfType(PdfType $value)
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{
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if (!$this->encrypted) {
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$this->fpdiWritePdfType($value);
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return;
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}
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if ($value instanceof PdfString) {
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$string = PdfString::unescape($value->value);
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$string = $this->_encrypt_data($this->currentObjectNumber, $string);
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$value->value = \TCPDF_STATIC::_escape($string);
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} elseif ($value instanceof PdfHexString) {
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$filter = new AsciiHex();
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$string = $filter->decode($value->value);
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$string = $this->_encrypt_data($this->currentObjectNumber, $string);
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$value->value = $filter->encode($string, true);
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} elseif ($value instanceof PdfStream) {
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$stream = $value->getStream();
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$stream = $this->_encrypt_data($this->currentObjectNumber, $stream);
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$dictionary = $value->value;
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$dictionary->value['Length'] = PdfNumeric::create(\strlen($stream));
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$value = PdfStream::create($dictionary, $stream);
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} elseif ($value instanceof PdfIndirectObject) {
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/**
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* @var PdfIndirectObject $value
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*/
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$this->currentObjectNumber = $this->objectMap[$this->currentReaderId][$value->objectNumber];
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}
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$this->fpdiWritePdfType($value);
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}
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}
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