source: extensions/AMetaData/JpegMetaData/Common/GlobalTags.class.php @ 5038

Last change on this file since 5038 was 5038, checked in by grum, 14 years ago

Manage multiple lenses for one Id for Pentax camera
Add some minors features
  • Property svn:executable set to *
File size: 5.1 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 * Used to stock some var we want to be accessed over all the metadata parsing
36 * process
37 *
38 * Using a class prevent to declare "global" variables
39 * Using a class allows to use methods rather than a direct access to the variable
40 * calling a static function from an object is more understandable in the code
41 * than affect a valu to an unknown global var
42 *
43 * This class provides theses public functions :
44 *  - (static) setExifMaker
45 *  - (static) getExifMaker
46 *  - (static) setFocal
47 *  - (static) setAperture
48 *
49 * -----------------------------------------------------------------------------
50 */
51
52
53  Class GlobalTags
54  {
55    static private $exifMaker = "";
56    static private $exifFocal = "";
57    static private $exifAperture = "";
58
59    /**
60     * this function is used by IFD Reader to store all information about maker
61     * and camera model
62     *
63     * the stored value if used within a grep like "/canon/i" to determine the
64     * maker note.
65     * For more information about this tricks see the how the tag 0x927c is
66     * managed in the function "processSpecialTag" of the file
67     * IfdReader.class.php
68     *
69     * @param String $value : the maker or the camera model
70     */
71    static public function setExifMaker($value)
72    {
73      if(is_array($value))
74      {
75        foreach($value as $val)
76        {
77          self::$exifMaker.=$val." ";
78        }
79      }
80      else
81      {
82        self::$exifMaker.=$value." ";
83      }
84      return(self::$exifMaker);
85    }
86
87    /**
88     * this function is used by IFD Reader to store all information about maker
89     * and camera model
90     *
91     * @return String
92     */
93    static public function getExifMaker()
94    {
95      return(self::$exifMaker);
96    }
97
98
99    /**
100     * this function is used by IFD Reader to store information about the focal
101     * used to shoot
102     *
103     * the stored value if used within the pentax reader, to know the lens used
104     * with the camera (if lens Id returns more than one lens)
105     *
106     * For more information about this tricks see the how the tag 0x003f is
107     * managed in the function "processSpecialTag" of the file
108     * PentaxReader.class.php
109     *
110     * @param String $value : the focal
111     */
112    static public function setExifFocal($value)
113    {
114      self::$exifFocal=$value;
115      return(self::$exifFocal);
116    }
117
118    /**
119     * this function is used by Pentax Reader to know the focal value used to
120     * shoot
121     *
122     * @return String
123     */
124    static public function getExifFocal()
125    {
126      return(self::$exifFocal);
127    }
128
129
130    /**
131     * this function is used by IFD Reader to store information about the
132     * aperture used to shoot
133     *
134     * the stored value if used within the pentax reader, to know the lens used
135     * with the camera (if lens Id returns more than one lens)
136     *
137     * For more information about this tricks see the how the tag 0x003f is
138     * managed in the function "processSpecialTag" of the file
139     * PentaxReader.class.php
140     *
141     * @param String $value : the aperture
142     */
143    static public function setExifAperture($value)
144    {
145      self::$exifAperture=$value;
146      return(self::$exifAperture);
147    }
148
149    /**
150     * this function is used by Pentax Reader to know the aperture value used to
151     * shoot
152     *
153     * @return String
154     */
155    static public function getExifAperture()
156    {
157      return(self::$exifAperture);
158    }
159
160  }
161
162  ?>
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