[4686] | 1 | <?php |
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| 2 | /** |
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| 3 | * --:: JPEG MetaDatas ::------------------------------------------------------- |
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| 4 | * |
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| 5 | * Version : 1.0.0 |
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| 6 | * Date : 2009/12/26 |
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| 7 | * |
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| 8 | * Author : Grum |
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| 9 | * email : grum at piwigo.org |
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| 10 | * website : http://photos.grum.fr |
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| 11 | * |
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| 12 | * << May the Little SpaceFrog be with you ! >> |
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| 13 | * |
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| 14 | * +-----------------------------------------------------------------------+ |
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| 15 | * | JpegMetaData - a PHP based Jpeg Metadata manager | |
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| 16 | * +-----------------------------------------------------------------------+ |
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| 17 | * | Copyright(C) 2010 Grum - http://www.grum.fr | |
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| 18 | * +-----------------------------------------------------------------------+ |
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| 19 | * | This program is free software; you can redistribute it and/or modify | |
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| 20 | * | it under the terms of the GNU General Public License as published by | |
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| 21 | * | the Free Software Foundation | |
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| 22 | * | | |
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| 23 | * | This program is distributed in the hope that it will be useful, but | |
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| 24 | * | WITHOUT ANY WARRANTY; without even the implied warranty of | |
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| 25 | * | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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| 26 | * | General Public License for more details. | |
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| 27 | * | | |
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| 28 | * | You should have received a copy of the GNU General Public License | |
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| 29 | * | along with this program; if not, write to the Free Software | |
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| 30 | * | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
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| 31 | * | USA. | |
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| 32 | * +-----------------------------------------------------------------------+ |
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| 33 | * |
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| 34 | * |
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| 35 | * +-:: HISTORY ::--------+----------------------------------------------------- |
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| 36 | * | | | |
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| 37 | * | Release | Date | |
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| 38 | * +---------+------------+----------------------------------------------------- |
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| 39 | * | 0.1.0a | 2009-12-26 | |
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| 40 | * | | | |
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| 41 | * | | | |
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| 42 | * | | | |
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| 43 | * | | | |
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| 44 | * | | | |
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| 45 | * | | | |
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| 46 | * | | | |
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| 47 | * | | | |
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| 48 | * | | | |
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| 49 | * | | | |
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| 50 | * +---------+------------+----------------------------------------------------- |
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| 51 | * |
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| 52 | * |
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| 53 | * ----------------------------------------------------------------------------- |
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| 54 | * |
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| 55 | * References about definition & interpretation of metadata tags : |
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| 56 | * - EXIF 2.20 Specification => http://www.exif.org/Exif2-2.PDF |
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| 57 | * - TIFF 6.0 Specification => http://partners.adobe.com/public/developer/en/tiff/TIFF6.pdf |
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| 58 | * - Exiftool by Phil Harvey => http://www.sno.phy.queensu.ca/~phil/exiftool/ |
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| 59 | * http://owl.phy.queensu.ca/~phil/exiftool/TagNames |
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| 60 | * - Exiv2 by Andreas Huggel => http://www.exiv2.org/ |
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| 61 | * - MetaData working group => http://www.metadataworkinggroup.org/specs/ |
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| 62 | * - Adobe XMP Developer Center => http://www.adobe.com/devnet/xmp/ |
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| 63 | * - Gezuz => http://gezus.one.free.fr/?Plugin-EXIF-pour-Spip-1-9-2 |
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| 64 | * - JPEG format => http://crousseau.free.fr/imgfmt_jpeg.htm |
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| 65 | * - International Press Telecomunication Council specifications |
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| 66 | * => http://www.iptc.org/ |
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| 67 | * - IPTC headers structure => http://www.codeproject.com/KB/graphics/iptc.aspx?msg=1014929 |
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| 68 | * - CPAN => http://search.cpan.org/dist/Image-MetaData-JPEG/lib/Image/MetaData/JPEG/Structures.pod |
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| 69 | * => http://search.cpan.org/~bettelli/Image-MetaData-JPEG/lib/Image/MetaData/JPEG/MakerNotes.pod |
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| 70 | * |
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| 71 | * ----------------------------------------------------------------------------- |
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| 72 | * To support internationalization the JpegMetaData package uses ".po" and ".mo" |
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| 73 | * files, and use "php-gettext" |
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| 74 | * ==> See files in External/php-gettext for more information about this project |
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| 75 | * ----------------------------------------------------------------------------- |
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| 76 | * |
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| 77 | * The JpegMetaData is the main class for reading metadata of a Jpeg file |
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| 78 | * |
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| 79 | * It provides two essentialy high level functions to read different kind of |
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| 80 | * metadata (EXIF, IPTC, XMP) : |
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| 81 | * - (static) getTagList |
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| 82 | * - load |
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| 83 | * - getTags |
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| 84 | * |
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| 85 | * ----------------------------------------------------------------------------- |
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| 86 | * |
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| 87 | * .. Notes .. |
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| 88 | * |
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| 89 | * About tags and translation in local lang |
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| 90 | * With the 'getTags()' method, the JpegMetaData returns an array of Tag objects |
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| 91 | * found in the jpeg file. |
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| 92 | * |
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| 93 | * A Tag object have 2 properties that can be translated into a local language : |
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| 94 | * - the name, getted with 'getName()' |
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| 95 | * - the valueLabel, getted with 'getLabel()' |
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| 96 | * |
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| 97 | * Theses properties ARE NOT translated automatically. |
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| 98 | * |
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| 99 | * You can translate it with the Locale class, by using the static method 'get' |
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| 100 | * |
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| 101 | * Example : |
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| 102 | * Locale::get($myTag->getName()) will return the translated name of the Tag |
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| 103 | * Locale::get($myTag->getLabel()) will return the translated value of the Tag |
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| 104 | * |
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| 105 | * ===========> See Tag.class.php to know more about the Tag class <============ |
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| 106 | * ========> See Locale.class.php to know more about the Locale class <========= |
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| 107 | * |
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| 108 | * |
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| 109 | * ----------------------------------------------------------------------------- |
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| 110 | */ |
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| 111 | |
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| 112 | define("JPEG_METADATA_DIR", dirname(__FILE__)."/"); |
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| 113 | |
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| 114 | require_once(JPEG_METADATA_DIR."Readers/JpegReader.class.php"); |
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[4998] | 115 | require_once(JPEG_METADATA_DIR."TagDefinitions/MagicTags.class.php"); |
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[4686] | 116 | |
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| 117 | class JpegMetaData |
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| 118 | { |
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| 119 | const TAGFILTER_KNOWN = 0x01; |
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| 120 | const TAGFILTER_IMPLEMENTED = 0x02; |
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| 121 | const TAGFILTER_ALL = 0x03; |
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| 122 | |
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| 123 | const KEY_EXIF_TIFF = "exif.tiff"; |
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| 124 | const KEY_EXIF_EXIF = "exif.exif"; |
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| 125 | const KEY_EXIF_GPS = "exif.gps"; |
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[4998] | 126 | const KEY_EXIF = "exif"; |
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| 127 | const KEY_IPTC = "iptc"; |
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| 128 | const KEY_XMP = "xmp"; |
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| 129 | const KEY_MAGIC = "magic"; |
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[4686] | 130 | |
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| 131 | private $jpeg = null; |
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| 132 | private $tags = Array(); |
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| 133 | private $options = Array(); |
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| 134 | |
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| 135 | /** |
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| 136 | * this static function returns an array of tags definitions |
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| 137 | * |
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| 138 | * the only parameter is an array to determine filter options |
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| 139 | * |
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| 140 | * ---------------------+--------------------------------------------------- |
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| 141 | * key | descriptions/values |
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| 142 | * ---------------------+--------------------------------------------------- |
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| 143 | * filter | Integer |
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| 144 | * | This options is used to filter implemented tag |
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| 145 | * | JpegMetaData::TAGFILTER_ALL |
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| 146 | * | => returns all the tags |
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| 147 | * | JpegMetaData::TAGFILTER_IMPLEMENTED |
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| 148 | * | => returns only the implemented tags |
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| 149 | * | |
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| 150 | * optimizeIptcDateTime | Boolean |
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| 151 | * | IPTC Date/Time are separated into 2 tags |
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| 152 | * | if this option is set to true, only dates tags are |
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| 153 | * | returned (assuming this option is used when an |
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| 154 | * | image file is loaded) |
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| 155 | * | |
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| 156 | * exif | Boolean |
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| 157 | * iptc | If set to true, the function returns all the tags |
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| 158 | * | known for the specified type tag |
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| 159 | * xmp | |
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| 160 | * maker | maker => returns specifics tags from all the known |
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[4998] | 161 | * magic | makers |
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[4686] | 162 | * | |
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| 163 | * ---------------------+--------------------------------------------------- |
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| 164 | * |
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| 165 | * returned value is an array |
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| 166 | * each keys is a tag name and the associated value is a 2-level array |
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| 167 | * 'implemented' => Boolean, allowing to know if the tags is implemented or |
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| 168 | * not |
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[4931] | 169 | * 'translatable'=> Boolean, allowing to know if the tag value can be |
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| 170 | * translated |
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[4686] | 171 | * 'name' => String, the tag name translated in locale language |
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| 172 | * |
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| 173 | * @Param Array $options (optional) |
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[4931] | 174 | * @return Array(keyName => Array('implemented' => Boolean, 'name' => String)) |
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[4686] | 175 | */ |
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| 176 | static public function getTagList($options=Array()) |
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| 177 | { |
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| 178 | $default=Array( |
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| 179 | 'filter' => self::TAGFILTER_ALL, |
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| 180 | 'optimizeIptcDateTime' => false, |
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| 181 | 'exif' => true, |
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| 182 | 'iptc' => true, |
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| 183 | 'xmp' => true, |
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[4998] | 184 | 'maker' => true, |
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| 185 | 'magic' => true, |
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[4686] | 186 | ); |
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| 187 | |
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| 188 | foreach($default as $key => $val) |
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| 189 | { |
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| 190 | if(array_key_exists($key, $options)) |
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| 191 | $default[$key]=$options[$key]; |
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| 192 | } |
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| 193 | |
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| 194 | $list=Array(); |
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| 195 | $returned=Array(); |
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| 196 | |
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| 197 | if($default['exif']) |
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| 198 | { |
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| 199 | $list[]="exif"; |
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| 200 | $list[]="gps"; |
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| 201 | } |
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| 202 | |
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| 203 | if($default['maker']) |
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| 204 | { |
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| 205 | $list[]=MAKER_PENTAX; |
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[4931] | 206 | $list[]=MAKER_NIKON; |
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[4933] | 207 | $list[]=MAKER_CANON; |
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[4686] | 208 | } |
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| 209 | |
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| 210 | if($default['iptc']) |
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| 211 | $list[]="iptc"; |
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| 212 | |
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| 213 | if($default['xmp']) |
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| 214 | $list[]="xmp"; |
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| 215 | |
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[4998] | 216 | if($default['magic']) |
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| 217 | $list[]="magic"; |
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| 218 | |
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[4686] | 219 | foreach($list as $val) |
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| 220 | { |
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| 221 | unset($tmp); |
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| 222 | |
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| 223 | switch($val) |
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| 224 | { |
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| 225 | case "exif": |
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| 226 | $tmp=new IfdTags(); |
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| 227 | $schema="exif"; |
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| 228 | break; |
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| 229 | case "gps": |
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| 230 | $tmp=new GpsTags(); |
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| 231 | $schema="exif.gps"; |
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| 232 | break; |
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| 233 | case "iptc": |
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| 234 | $tmp=new IptcTags(); |
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| 235 | $schema="iptc"; |
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| 236 | break; |
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| 237 | case "xmp": |
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| 238 | $tmp=new XmpTags(); |
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| 239 | $schema="xmp"; |
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| 240 | break; |
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[4998] | 241 | case "magic": |
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| 242 | $tmp=new MagicTags(); |
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| 243 | $schema="magic"; |
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| 244 | break; |
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[4686] | 245 | case MAKER_PENTAX: |
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[4904] | 246 | include_once(JPEG_METADATA_DIR."TagDefinitions/PentaxTags.class.php"); |
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[4686] | 247 | $tmp=new PentaxTags(); |
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| 248 | $schema="exif.".MAKER_PENTAX; |
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| 249 | break; |
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[4931] | 250 | case MAKER_NIKON: |
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| 251 | include_once(JPEG_METADATA_DIR."TagDefinitions/NikonTags.class.php"); |
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| 252 | $tmp=new NikonTags(); |
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| 253 | $schema="exif.".MAKER_NIKON; |
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| 254 | break; |
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[4933] | 255 | case MAKER_CANON: |
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| 256 | include_once(JPEG_METADATA_DIR."TagDefinitions/CanonTags.class.php"); |
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| 257 | $tmp=new CanonTags(); |
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| 258 | $schema="exif.".MAKER_CANON; |
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| 259 | break; |
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[4686] | 260 | default: |
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| 261 | $tmp=null; |
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| 262 | $schema="?"; |
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| 263 | break; |
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| 264 | } |
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| 265 | |
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| 266 | if(!is_null($tmp)) |
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| 267 | foreach($tmp->getTags() as $key => $tag) |
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| 268 | { |
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| 269 | if(self::filter(true, $tag['implemented'], $default['filter'])) |
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| 270 | { |
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| 271 | if(array_key_exists('tagName', $tag)) |
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| 272 | $name=$tag['tagName']; |
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| 273 | else |
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| 274 | $name=$key; |
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| 275 | |
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| 276 | if(array_key_exists('schema', $tag) and $val=="exif") |
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| 277 | $subSchema=".".$tag['schema']; |
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| 278 | else |
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| 279 | $subSchema=""; |
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| 280 | |
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| 281 | if($val=='xmp') |
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| 282 | $keyName=$schema.$subSchema.".".$key; |
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| 283 | else |
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| 284 | $keyName=$schema.$subSchema.".".$name; |
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| 285 | $returned[$keyName]=Array( |
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| 286 | 'implemented' => $tag['implemented'], |
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[4904] | 287 | 'translatable' => $tag['translatable'], |
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[4686] | 288 | 'name' => $name |
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| 289 | ); |
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| 290 | } |
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| 291 | } |
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| 292 | } |
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| 293 | |
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[4998] | 294 | ksort($returned); |
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| 295 | |
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[4686] | 296 | return($returned); |
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| 297 | } |
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| 298 | |
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| 299 | |
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| 300 | /** |
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| 301 | * the filter function is used by the classe to determine if a tag is |
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| 302 | * filtered or not |
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| 303 | * |
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| 304 | * @Param Boolean $known |
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| 305 | * @Param Boolean $implemented |
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| 306 | * @Param Integer $filter |
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| 307 | * |
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| 308 | */ |
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| 309 | static public function filter($known, $implemented, $filter) |
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| 310 | { |
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| 311 | return(($known and (($filter & self::TAGFILTER_KNOWN) == self::TAGFILTER_KNOWN )) or |
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| 312 | ($implemented and (($filter & self::TAGFILTER_IMPLEMENTED) == self::TAGFILTER_IMPLEMENTED ))); |
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| 313 | } |
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| 314 | |
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| 315 | /** |
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| 316 | * the constructor need an optional filename and options |
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| 317 | * |
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| 318 | * if no filename is given, you can use the "load" function after the object |
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| 319 | * is instancied |
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| 320 | * |
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| 321 | * if no options are given, the class use the default values |
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| 322 | * |
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| 323 | * ---------------------+--------------------------------------------------- |
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| 324 | * key | descriptions/values |
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| 325 | * ---------------------+--------------------------------------------------- |
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| 326 | * filter | Integer |
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| 327 | * | This options is used to filter implemented tag |
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| 328 | * | JpegMetaData::TAGFILTER_ALL |
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| 329 | * | => returns all the tags |
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| 330 | * | JpegMetaData::TAGFILTER_IMPLEMENTED |
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| 331 | * | => returns only the implemented tags, not |
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| 332 | * | implemented tag are excluded |
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| 333 | * | JpegMetaData::TAGFILTER_KNOWN |
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| 334 | * | => returns only the known tags (implemented or |
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| 335 | * | not), unknown tag are excluded |
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| 336 | * | |
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| 337 | * optimizeIptcDateTime | Boolean |
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| 338 | * | IPTC Date/Time are separated into 2 tags |
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| 339 | * | if this option is set to true, only dates tags are |
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| 340 | * | returned (in this case, time is included is the |
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| 341 | * | date) |
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| 342 | * | |
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| 343 | * exif | Boolean |
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| 344 | * iptc | If set to true, the function returns all the tags |
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| 345 | * xmp | known for the specified type tag |
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[4998] | 346 | * magic | the exif parameter include the maker tags |
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[4686] | 347 | * | |
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| 348 | * ---------------------+--------------------------------------------------- |
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| 349 | * |
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| 350 | * @Param String $file (optional) |
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| 351 | * @Param Array $options (optional) |
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| 352 | * |
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| 353 | */ |
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| 354 | function __construct($file = "", $options = Array()) |
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| 355 | { |
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| 356 | $this->load($file, $options); |
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| 357 | } |
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| 358 | |
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| 359 | function __destruct() |
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| 360 | { |
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| 361 | $this->unsetAll(); |
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| 362 | } |
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| 363 | |
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| 364 | /** |
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| 365 | * load a file |
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| 366 | * |
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| 367 | * options values are the same than the constructor's options |
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| 368 | * |
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| 369 | * @Param String $file |
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| 370 | * @Param Array $options (optional) |
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| 371 | * |
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| 372 | */ |
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| 373 | public function load($file, $options = Array()) |
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| 374 | { |
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[4904] | 375 | $this->unsetAll(); |
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| 376 | |
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[4686] | 377 | $this->initializeOptions($options); |
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| 378 | $this->tags = Array(); |
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| 379 | $this->jpeg = new JpegReader($file); |
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| 380 | |
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| 381 | if($this->jpeg->isLoaded() and $this->jpeg->isValid()) |
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| 382 | { |
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| 383 | foreach($this->jpeg->getAppMarkerSegments() as $key => $appMarkerSegment) |
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| 384 | { |
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| 385 | if($appMarkerSegment->dataLoaded()) |
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| 386 | { |
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| 387 | $data=$appMarkerSegment->getData(); |
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| 388 | |
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| 389 | if($data instanceof TiffReader) |
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| 390 | { |
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| 391 | /* |
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| 392 | * Load Exifs tags from Tiff block |
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| 393 | */ |
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| 394 | if($data->getNbIFDs()>0) |
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| 395 | { |
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| 396 | $this->loadIfdTags($data->getIFD(0), self::KEY_EXIF_TIFF); |
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| 397 | } |
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| 398 | } |
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| 399 | elseif($data instanceof XmpReader) |
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| 400 | { |
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| 401 | /* |
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| 402 | * Load Xmp tags from Xmp block |
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| 403 | */ |
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| 404 | $this->loadTags($data->getTags(), self::KEY_XMP); |
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| 405 | } |
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| 406 | elseif($data instanceof IptcReader) |
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| 407 | { |
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| 408 | /* |
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| 409 | * Load IPTC tags from IPTC block |
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| 410 | */ |
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| 411 | if($this->options['optimizeIptcDateTime']) |
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| 412 | $data->optimizeDateTime(); |
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| 413 | |
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| 414 | $this->loadTags($data->getTags(), self::KEY_IPTC); |
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| 415 | } |
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| 416 | } |
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| 417 | } |
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[4998] | 418 | |
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| 419 | if($this->options['magic']) |
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| 420 | { |
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| 421 | $this->processMagicTags(); |
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| 422 | } |
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| 423 | |
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| 424 | ksort($this->tags); |
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[4686] | 425 | } |
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| 426 | } |
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| 427 | |
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| 428 | /** |
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| 429 | * This function returns an array of tags found in the loaded file |
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| 430 | * |
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| 431 | * It's possible to made a second selection to filter items |
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| 432 | * |
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| 433 | * ---------------------+--------------------------------------------------- |
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| 434 | * key | descriptions/values |
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| 435 | * ---------------------+--------------------------------------------------- |
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| 436 | * tagFilter | Integer |
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| 437 | * | This options is used to filter implemented tag |
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| 438 | * | JpegMetaData::TAGFILTER_ALL |
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| 439 | * | => returns all the tags |
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| 440 | * | JpegMetaData::TAGFILTER_IMPLEMENTED |
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| 441 | * | => returns only the implemented tags, not |
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| 442 | * | implemented tag are excluded |
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| 443 | * | JpegMetaData::TAGFILTER_KNOWN |
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| 444 | * | => returns only the known tags (implemented or |
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| 445 | * | not), unknown tag are excluded |
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| 446 | * | |
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| 447 | * ---------------------+--------------------------------------------------- |
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| 448 | * |
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| 449 | * Note, the filter is applied on loaded tags. If a filter was applied when |
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| 450 | * the file was loaded, you cannot expand the tag list, only reduce |
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| 451 | * example : |
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| 452 | * $jpegmd = new JpegMetadata($file, Array('filter' => JpegMetaData::TAGFILTER_IMPLEMENTED)); |
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| 453 | * => the unknown tag are not loaded |
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| 454 | * $jpegmd->getTags(JpegMetaData::TAGFILTER_ALL) |
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| 455 | * => unknown tag will not be restitued because they are not loaded... |
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| 456 | * |
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| 457 | * the function returns an array of Tag. |
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| 458 | * |
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| 459 | * |
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| 460 | * ===========> See the Tag.class.php to know all about a tag <============= |
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| 461 | * |
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| 462 | * @Param Integer $tagFilter (optional) |
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| 463 | * |
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| 464 | */ |
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| 465 | public function getTags($tagFilter = self::TAGFILTER_ALL) |
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| 466 | { |
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| 467 | $returned=Array(); |
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| 468 | foreach($this->tags as $key => $val) |
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| 469 | { |
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[4698] | 470 | if(self::filter($val->isKnown(), $val->isImplemented(), $tagFilter)) |
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[4686] | 471 | { |
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| 472 | $returned[$key]=$val; |
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| 473 | } |
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| 474 | } |
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| 475 | return($returned); |
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| 476 | } |
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| 477 | |
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| 478 | /** |
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| 479 | * initialize the options... |
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| 480 | * |
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| 481 | * @Param Array $options (optional) |
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| 482 | * |
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| 483 | */ |
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| 484 | private function initializeOptions($options=Array()) |
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| 485 | { |
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| 486 | $this->options = Array( |
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| 487 | 'filter' => self::TAGFILTER_ALL, |
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| 488 | 'optimizeIptcDateTime' => false, |
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[4998] | 489 | 'exif' => true, |
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| 490 | 'iptc' => true, |
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| 491 | 'xmp' => true, |
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| 492 | 'magic' => true |
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[4686] | 493 | ); |
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| 494 | |
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| 495 | foreach($this->options as $key => $val) |
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| 496 | { |
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| 497 | if(array_key_exists($key, $options)) |
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| 498 | $this->options[$key]=$options[$key]; |
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| 499 | } |
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| 500 | } |
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| 501 | |
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| 502 | /** |
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| 503 | * load tags from an IFD structure |
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| 504 | * |
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| 505 | * see Tiff.class.php and IfdReader.class.php for more informations |
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| 506 | * |
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| 507 | * @Param IfdReader $ifd |
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| 508 | * @Param String $exifKey |
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| 509 | * |
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| 510 | */ |
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| 511 | private function loadIfdTags($ifd, $exifKey) |
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| 512 | { |
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| 513 | foreach($ifd->getTags() as $key => $tag) |
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| 514 | { |
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[4933] | 515 | if((self::filter($tag->getTag()->isKnown(), $tag->getTag()->isImplemented(), $this->options['filter'])) or |
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| 516 | ($tag->getTag()->getName()=='Exif IFD Pointer' or |
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| 517 | $tag->getTag()->getName()=='MakerNote' or |
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| 518 | $tag->getTag()->getName()=='GPS IFD Pointer')) |
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[4686] | 519 | { |
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[4935] | 520 | /* |
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| 521 | * only tag responding to the filter are selected |
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| 522 | * note the tags 'Exif IFD Pointer', 'MakerNote' & 'GPS IFD Pointer' |
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| 523 | * are not declared as implemented (otherwise they are visible with |
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| 524 | * the static 'getTagList' function) but must be selected even if |
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| 525 | * filter says "implemented only" |
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| 526 | */ |
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[4686] | 527 | if($tag->getTag()->getLabel() instanceof IfdReader) |
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| 528 | { |
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| 529 | switch($tag->getTag()->getName()) |
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| 530 | { |
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| 531 | case 'Exif IFD Pointer': |
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| 532 | $exifKey2=self::KEY_EXIF_EXIF; |
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| 533 | break; |
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| 534 | case 'MakerNote': |
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| 535 | $exifKey2=self::KEY_EXIF.".".$tag->getTag()->getLabel()->getMaker(); |
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| 536 | break; |
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| 537 | case 'GPS IFD Pointer': |
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| 538 | $exifKey2=self::KEY_EXIF_GPS; |
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| 539 | break; |
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| 540 | default: |
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| 541 | $exifKey2=$exifKey; |
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| 542 | break; |
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| 543 | } |
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| 544 | $this->loadIfdTags($tag->getTag()->getLabel(), $exifKey2); |
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| 545 | } |
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| 546 | else |
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| 547 | { |
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| 548 | $this->tags[$exifKey.".".$tag->getTag()->getName()]=$tag->getTag(); |
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| 549 | } |
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| 550 | } |
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| 551 | } |
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| 552 | } |
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| 553 | |
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| 554 | /** |
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| 555 | * Used to load tags from an IPTc or XMP structure |
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| 556 | * |
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| 557 | * see IptcReader.class.php and XmpReader.class.php |
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| 558 | * |
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| 559 | * @Param Tag[] $ifd |
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| 560 | * @Param String $tagKey |
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| 561 | * |
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| 562 | */ |
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| 563 | private function loadTags($tags, $tagKey) |
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| 564 | { |
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| 565 | foreach($tags as $key => $tag) |
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| 566 | { |
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[4698] | 567 | if(self::filter($tag->isKnown(), $tag->isImplemented(), $this->options['filter'])) |
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[4686] | 568 | { |
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| 569 | $this->tags[$tagKey.".".$tag->getName()]=$tag; |
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| 570 | } |
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| 571 | } |
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| 572 | } |
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| 573 | |
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[4998] | 574 | /** |
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| 575 | * MagicTags are build with this function |
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| 576 | */ |
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| 577 | private function processMagicTags() |
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| 578 | { |
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| 579 | $magicTags=new MagicTags(); |
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| 580 | |
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| 581 | foreach($magicTags->getTags() as $key => $val) |
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| 582 | { |
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| 583 | $tag=new Tag($key,0,$key); |
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| 584 | |
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| 585 | for($i=0; $i<count($val['tagValues']); $i++) |
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| 586 | { |
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| 587 | $found=true; |
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| 588 | preg_match_all('/{([a-z0-9:\.\s\/]*)(\[.*\])?}/i', $val['tagValues'][$i], $returned, PREG_PATTERN_ORDER); |
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| 589 | foreach($returned[1] as $testKey) |
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| 590 | { |
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| 591 | $found=$found & array_key_exists($testKey, $this->tags); |
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| 592 | } |
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| 593 | if(count($returned[1])==0) $found=false; |
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| 594 | |
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| 595 | if($found) |
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| 596 | { |
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| 597 | $returned=trim(preg_replace_callback( |
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| 598 | '/{([a-z0-9:\.\s\/\[\]]*)}/i', |
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| 599 | Array(&$this, "processMagicTagsCB"), |
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| 600 | $val['tagValues'][$i] |
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| 601 | )); |
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| 602 | |
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| 603 | $tag->setValue($returned); |
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| 604 | $tag->setLabel($returned); |
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| 605 | $tag->setKnown(true); |
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| 606 | $tag->setImplemented($val['implemented']); |
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| 607 | $tag->setTranslatable($val['translatable']); |
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| 608 | |
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| 609 | $i=count($val['tagValues']); |
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| 610 | } |
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| 611 | } |
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| 612 | |
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| 613 | if($tag->isImplemented() and $found) |
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| 614 | { |
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| 615 | $this->tags["magic.".$key]=$tag; |
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| 616 | } |
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| 617 | |
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| 618 | unset($tag); |
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| 619 | } |
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| 620 | unset($magicTags); |
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| 621 | } |
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| 622 | |
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| 623 | /** |
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| 624 | * this function is called by the processMagicTags to replace tagId by the |
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| 625 | * tag values |
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| 626 | * |
---|
| 627 | * @param Array $matches : array[1] = the tagId |
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| 628 | * @return String : the tag value |
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| 629 | */ |
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| 630 | private function processMagicTagsCB($matches) |
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| 631 | { |
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| 632 | $label=""; |
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| 633 | preg_match_all('/([a-z0-9:\.\s\/]*)\[(.*)\]/i', $matches[1], $result, PREG_PATTERN_ORDER); |
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| 634 | if(count($result[0])>0) |
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| 635 | { |
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| 636 | |
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| 637 | if(array_key_exists($result[1][0], $this->tags)) |
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| 638 | { |
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| 639 | $tag=$this->tags[$result[1][0]]->getLabel(); |
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| 640 | |
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| 641 | preg_match_all('/([a-z0-9:\.\s\/]*)\[(.*)\]/i', $result[2][0], $result2, PREG_PATTERN_ORDER); |
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| 642 | |
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| 643 | if(count($result2[0])>0) |
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| 644 | { |
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| 645 | if(array_key_exists($result2[2][0], $tag[$result2[1][0]] )) |
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| 646 | $label=$tag[$result2[1][0]][$result2[2][0]]; |
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| 647 | } |
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| 648 | else |
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| 649 | { |
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| 650 | if(array_key_exists($result[2][0], $tag)) |
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| 651 | $label=$tag[$result[2][0]]; |
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| 652 | } |
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| 653 | } |
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| 654 | } |
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| 655 | else |
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| 656 | { |
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| 657 | if(array_key_exists($matches[1], $this->tags)) |
---|
| 658 | { |
---|
| 659 | $label=$this->tags[$matches[1]]->getLabel(); |
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| 660 | } |
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| 661 | } |
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| 662 | |
---|
| 663 | if($label instanceof DateTime) |
---|
| 664 | return($label->format("Y-m-d H:i:s")); |
---|
| 665 | |
---|
| 666 | $label=XmpTags::getAltValue($label, L10n::getLanguage()); |
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| 667 | |
---|
| 668 | if(is_array($label)) |
---|
| 669 | return(implode(", ", $label)); |
---|
| 670 | |
---|
| 671 | return(trim($label)); |
---|
| 672 | } |
---|
| 673 | |
---|
| 674 | |
---|
| 675 | |
---|
| 676 | /** |
---|
| 677 | * used by the destructor to clean variables |
---|
| 678 | */ |
---|
[4686] | 679 | private function unsetAll() |
---|
| 680 | { |
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| 681 | unset($this->tags); |
---|
| 682 | unset($this->jpeg); |
---|
[4904] | 683 | unset($this->options); |
---|
[4686] | 684 | } |
---|
| 685 | |
---|
| 686 | |
---|
| 687 | } // class JpegMetaData |
---|
| 688 | |
---|
| 689 | ?> |
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