source: extensions/AMetaData/JpegMetaData/Readers/ComReader.class.php @ 7511

Last change on this file since 7511 was 7511, checked in by grum, 13 years ago

Update JpegMetadata class to implement COM segment as a tag and keywords in "magic" tags
feature:1975, feature:1976

  • Property svn:executable set to *
File size: 3.3 KB
Line 
1<?php
2/*
3 * --:: JPEG MetaDatas ::-------------------------------------------------------
4 *
5 *  Author    : Grum
6 *   email    : grum at piwigo.org
7 *   website  : http://photos.grum.fr
8 *
9 *   << May the Little SpaceFrog be with you ! >>
10 *
11 *
12 * +-----------------------------------------------------------------------+
13 * | JpegMetaData - a PHP based Jpeg Metadata manager                      |
14 * +-----------------------------------------------------------------------+
15 * | Copyright(C) 2010  Grum - http://www.grum.fr                          |
16 * +-----------------------------------------------------------------------+
17 * | This program is free software; you can redistribute it and/or modify  |
18 * | it under the terms of the GNU General Public License as published by  |
19 * | the Free Software Foundation                                          |
20 * |                                                                       |
21 * | This program is distributed in the hope that it will be useful, but   |
22 * | WITHOUT ANY WARRANTY; without even the implied warranty of            |
23 * | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
24 * | General Public License for more details.                              |
25 * |                                                                       |
26 * | You should have received a copy of the GNU General Public License     |
27 * | along with this program; if not, write to the Free Software           |
28 * | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
29 * | USA.                                                                  |
30 * +-----------------------------------------------------------------------+
31 *
32 *
33 * -----------------------------------------------------------------------------
34 *
35 * The ComReader class is the dedicated class to read the COM structure
36 *
37 * -----------------------------------------------------------------------------
38 *
39 * .. Notes ..
40 *
41 *
42 * This class provides theses public functions :
43 *  - getComment
44 *
45 * -----------------------------------------------------------------------------
46 */
47
48  require_once(JPEG_METADATA_DIR."Common/Data.class.php");
49  require_once(JPEG_METADATA_DIR."TagDefinitions/ComTags.class.php");
50
51  class ComReader extends GenericReader
52  {
53    private $comment;
54    /**
55     * The constructor need the Com block datas (given as a Data object)
56     *
57     * @param Data $data :
58     */
59    function __construct($data)
60    {
61      parent::__construct($data);
62      $this->comment=$this->data->readASCII();
63      $this->tagDef = new ComTags();
64
65      $tag=$this->tagDef->getTagById('comment');
66
67      $entry=new Tag();
68      $entry->setKnown(true);
69      $entry->setName($tag['tagName']);
70      $entry->setImplemented($tag['implemented']);
71      $entry->setTranslatable($tag['translatable']);
72      $entry->setSchema($tag['schema']);
73      $entry->setValue($this->comment);
74      $entry->setLabel($this->comment);
75      $this->entries[]=$entry;
76    }
77
78    function __destruct()
79    {
80      unset($this->comment);
81      parent::__destruct();
82    }
83
84    /**
85     * return the comment value
86     *
87     * @return String
88     */
89    public function getComment()
90    {
91      return($this->comment);
92    }
93
94    public function toString()
95    {
96      $returned="COM block value: ".$this->comment;
97      return($returned);
98    }
99  }
100
101
102?>
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