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<?php |
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|
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/** |
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* @file |
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* This file is part of the PdfParser library. |
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* |
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* @author Sébastien MALOT <sebastien@malot.fr> |
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* |
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* @date 2017-01-03 |
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* |
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* @license LGPLv3 |
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* |
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* @url <https://github.com/smalot/pdfparser> |
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* |
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* PdfParser is a pdf library written in PHP, extraction oriented. |
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* Copyright (C) 2017 - Sébastien MALOT <sebastien@malot.fr> |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. |
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* If not, see <http://www.pdfparser.org/sites/default/LICENSE.txt>. |
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*/ |
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|
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namespace Smalot\PdfParser; |
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|
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use Smalot\PdfParser\Element\ElementArray; |
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|
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/** |
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* Class Pages |
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*/ |
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class Pages extends PDFObject |
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{ |
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/** |
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* @var array<\Smalot\PdfParser\Font>|null |
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*/ |
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protected $fonts; |
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|
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/** |
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* @todo Objects other than Pages or Page might need to be treated specifically |
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* in order to get Page objects out of them. |
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* |
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* @see https://github.com/smalot/pdfparser/issues/331 |
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*/ |
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public function getPages(bool $deep = false): array |
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{ |
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if (!$this->has('Kids')) { |
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return []; |
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} |
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|
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/** @var ElementArray $kidsElement */ |
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$kidsElement = $this->get('Kids'); |
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|
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if (!$deep) { |
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return $kidsElement->getContent(); |
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} |
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|
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// Prepare to apply the Pages' object's fonts to each page |
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if (false === \is_array($this->fonts)) { |
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$this->setupFonts(); |
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} |
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$fontsAvailable = 0 < \count($this->fonts); |
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|
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$kids = $kidsElement->getContent(); |
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$pages = []; |
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|
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foreach ($kids as $kid) { |
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if ($kid instanceof self) { |
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$pages = array_merge($pages, $kid->getPages(true)); |
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} elseif ($kid instanceof Page) { |
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if ($fontsAvailable) { |
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$kid->setFonts($this->fonts); |
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} |
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$pages[] = $kid; |
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} |
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} |
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|
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return $pages; |
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} |
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|
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/** |
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* Gathers information about fonts and collects them in a list. |
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* |
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* @return void |
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* |
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* @internal |
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*/ |
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protected function setupFonts() |
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{ |
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$resources = $this->get('Resources'); |
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|
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if (method_exists($resources, 'has') && $resources->has('Font')) { |
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// no fonts available, therefore stop here |
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if ($resources->get('Font') instanceof Element\ElementMissing) { |
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return; |
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} |
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|
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if ($resources->get('Font') instanceof Header) { |
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$fonts = $resources->get('Font')->getElements(); |
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} else { |
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$fonts = $resources->get('Font')->getHeader()->getElements(); |
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} |
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|
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$table = []; |
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|
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foreach ($fonts as $id => $font) { |
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if ($font instanceof Font) { |
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$table[$id] = $font; |
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|
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// Store too on cleaned id value (only numeric) |
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$id = preg_replace('/[^0-9\.\-_]/', '', $id); |
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if ('' != $id) { |
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$table[$id] = $font; |
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} |
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} |
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} |
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|
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$this->fonts = $table; |
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} else { |
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$this->fonts = []; |
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} |
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} |
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} |
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|
