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| 1 | <?php |
| 2 | /** |
| 3 | * Copyright © Wikimedia Deutschland, 2009 |
| 4 | * Authors Hallo Welt! Medienwerkstatt GmbH |
| 5 | * Authors Sebastian Ulbricht, Daniel Lynge, Marc Reymann, Markus Glaser |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along |
| 18 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 20 | * http://www.gnu.org/copyleft/gpl.html |
| 21 | */ |
| 22 | |
| 23 | namespace MediaWiki\Extension\PagedTiffHandler; |
| 24 | |
| 25 | class PagedTiffInfoParserState { |
| 26 | /** @var array All data */ |
| 27 | public $metadata; |
| 28 | |
| 29 | /** @var array Current page */ |
| 30 | public $page; |
| 31 | |
| 32 | /** @var int */ |
| 33 | public $prevPage; |
| 34 | |
| 35 | public function __construct() { |
| 36 | $this->metadata = []; |
| 37 | $this->page = []; |
| 38 | $this->prevPage = 0; |
| 39 | |
| 40 | $this->metadata['page_data'] = []; |
| 41 | } |
| 42 | |
| 43 | public function finish( $finishPage = true ) { |
| 44 | if ( $finishPage ) { |
| 45 | $this->finishPage(); |
| 46 | } |
| 47 | |
| 48 | if ( !$this->metadata['page_data'] ) { |
| 49 | $this->metadata['errors'][] = 'no page data found in tiff directory!'; |
| 50 | return; |
| 51 | } |
| 52 | |
| 53 | if ( !isset( $this->metadata['page_count'] ) ) { |
| 54 | $this->metadata['page_count'] = count( $this->metadata['page_data'] ); |
| 55 | } |
| 56 | |
| 57 | if ( !isset( $this->metadata['first_page'] ) ) { |
| 58 | $this->metadata['first_page'] = min( array_keys( $this->metadata['page_data'] ) ); |
| 59 | } |
| 60 | |
| 61 | if ( !isset( $this->metadata['last_page'] ) ) { |
| 62 | $this->metadata['last_page'] = max( array_keys( $this->metadata['page_data'] ) ); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | public function resetPage() { |
| 67 | $this->page = []; |
| 68 | } |
| 69 | |
| 70 | public function finishPage() { |
| 71 | if ( !isset( $this->page['page'] ) ) { |
| 72 | $this->page['page'] = $this->prevPage + 1; |
| 73 | } else { |
| 74 | if ( $this->prevPage >= $this->page['page'] ) { |
| 75 | $this->metadata['errors'][] = "inconsistent page numbering in TIFF directory"; |
| 76 | return false; |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | if ( isset( $this->page['width'] ) && isset( $this->page['height'] ) ) { |
| 81 | $this->prevPage = max( $this->prevPage, $this->page['page'] ); |
| 82 | |
| 83 | if ( !isset( $this->page['alpha'] ) ) { |
| 84 | $this->page['alpha'] = 'false'; |
| 85 | } |
| 86 | |
| 87 | $this->page['pixels'] = $this->page['height'] * $this->page['width']; |
| 88 | $this->metadata['page_data'][$this->page['page']] = $this->page; |
| 89 | } |
| 90 | |
| 91 | $this->page = []; |
| 92 | return true; |
| 93 | } |
| 94 | |
| 95 | public function setPageProperty( $key, $value ) { |
| 96 | $this->page[$key] = $value; |
| 97 | } |
| 98 | |
| 99 | public function hasPageProperty( $key ) { |
| 100 | return isset( $this->page[$key] ) && $this->page[$key] !== null; |
| 101 | } |
| 102 | |
| 103 | public function setFileProperty( $key, $value ) { |
| 104 | $this->metadata[$key] = $value; |
| 105 | } |
| 106 | |
| 107 | public function hasFileProperty( $key, $value ) { |
| 108 | return isset( $this->metadata[$key] ) && $this->metadata[$key] !== null; |
| 109 | } |
| 110 | |
| 111 | public function addError( $message ) { |
| 112 | $this->metadata['errors'][] = $message; |
| 113 | } |
| 114 | |
| 115 | public function addWarning( $message ) { |
| 116 | $this->metadata['warnings'][] = $message; |
| 117 | } |
| 118 | |
| 119 | public function getMetadata() { |
| 120 | return $this->metadata; |
| 121 | } |
| 122 | |
| 123 | public function hasErrors() { |
| 124 | return !empty( $this->metadata['errors'] ); |
| 125 | } |
| 126 | } |