* @copyright Copyright © 2005, Ævar Arnfjörð Bjarmason
* @license http://www.gnu.org/copyleft/gpl.html GNU General Public License
*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
* @link http://exif.org/Exif2-2.PDF The Exif 2.2 specification
* @bug 1555, 1947
*/
'BitsPerSample' => SHORT, # Number of bits per component
# "When a primary image is JPEG compressed, this designation is not"
# "necessary and is omitted." (p23)
- 'Compression' => SHORT, # Compression scheme
+ 'Compression' => SHORT, # Compression scheme #p23
'PhotometricInterpretation' => SHORT, # Pixel composition #p23
'Orientation' => SHORT, # Orientation of image #p24
'SamplesPerPixel' => SHORT, # Number of components
else
$this->mFlatExif[$key] = $val;
}
-
+
/**
* Produce a list of all Exif tags appropriate for user output
*
* @return bool
*/
function validate( $tag, $val ) {
- switch($this->mFlatExif[$tag]) {
- case BYTE:
+ // Fucks up if not typecast
+ switch((string)$this->mFlatExif[$tag]) {
+ case (string)BYTE:
return $this->isByte( $val );
- break;
- case ASCII:
+ case (string)ASCII:
return $this->isASCII( $val );
- break;
- case SHORT:
+ case (string)SHORT:
return $this->isShort( $val );
- break;
- case LONG:
+ case (string)LONG:
return $this->isLong( $val );
- case RATIONAL:
+ case (string)RATIONAL:
return $this->isRational( $val );
- case UNDEFINED:
+ case (string)UNDEFINED:
return $this->isUndefined( $val );
- case SLONG:
+ case (string)SLONG:
return $this->isSlong( $val );
- case SRATIONAL:
+ case (string)SRATIONAL:
return $this->isSrational( $val );
+ case (string)SHORT.','.LONG:
+ return $this->isShort( $val ) || $this->isLong( $val );
default:
wfDebug( "Exif: The tag \"$tag\" had an invalid value: \"$val\"\n" );
return false;
- break;
}
}
+
+ /**
+ * Numbers given by Exif user agents are often magical, that is they
+ * should be replaced by a detailed explanation depending on their
+ * value which most of the time are plain integers. This function
+ * formats Exif values into human readable form.
+ *
+ * @param string $tag The tag to be formatted
+ * @param mixed $val The value of the tag
+ * @return string
+ */
+ function format( $tag, $val ) {
+ global $wgLang;
+
+ switch ($tag) {
+ case 'Compression':
+ switch ($val) {
+ case 1: case 6:
+ return $this->msg( $tag, $val );
+ }
+
+ case 'PhotometricInterpretation':
+ switch ($val) {
+ case 2: case 6:
+ return $this->msg( $tag, $val );
+ }
+
+ case 'Orientation':
+ switch ($val) {
+ case 1: case 2: case 3: case 4: case 5: case 6: case 7: case 8:
+ return $this->msg( $tag, $val );
+ }
+
+ // TODO: If this field does not exist use 1
+ case 'PlanarConfiguration':
+ switch ($val) {
+ case 1: case 2:
+ return $this->msg( $tag, $val );
+ }
+
+ // TODO: YCbCrSubSampling
+ // TODO: YCbCrPositioning
+ // TODO: If this field does not exists use 2
+ case 'ResolutionUnit': #p26
+ switch ($val) {
+ case 2: case 3:
+ return $this->msg( $tag, $val );
+ }
+
+ // TODO: YCbCrCoefficients #p27 (see annex E)
+ case 'ExifVersion': case 'FlashpixVersion':
+ return "$val"/100;
+
+ case 'ColorSpace':
+ switch ($val) {
+ case 1: case 'FFFF.H':
+ return $this->msg( $tag, $val );
+ }
+
+ case 'ComponentsConfiguration':
+ switch ($val) {
+ case 0: case 1: case 2: case 3: case 4: case 5: case 6:
+ return $this->msg( $tag, $val );
+ }
+
+ case 'DateTimeOriginal':
+ case 'DateTimeDigitized':
+ return $wgLang->timeanddate( wfTimestamp(TS_MW, $val) );
+ case 'ExposureProgram':
+ switch ($val) {
+ case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: case 8:
+ return $this->msg( $tag, $val );
+ }
+ case 'MeteringMode':
+ switch ($val) {
+ case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: case 255:
+ return $this->msg( $tag, $val );
+ }
+ case 'LightSource':
+ switch ($val) {
+ case 0: case 1: case 2: case 3: case 4: case 9: case 10: case 11:
+ case 12: case 13: case 14: case 15: case 17: case 18: case 19: case 20:
+ case 21: case 22: case 23: case 24: case 255:
+ return $this->msg( $tag, $val );
+ }
+ // TODO: Flash
+ case 'SensingMethod':
+ switch ($val) {
+ case 1: case 2: case 3: case 4: case 5: case 7: case 8:
+ return $this->msg( $tag, $val );
+ }
+ case 'FileSource':
+ switch ($val) {
+ case 3:
+ return $this->msg( $tag, $val );
+ }
+ case 'SceneType':
+ switch ($val) {
+ case 1:
+ return $this->msg( $tag, $val );
+ }
+ case 'CustomRendered':
+ switch ($val) {
+ case 0: case 1:
+ return $this->msg( $tag, $val );
+ }
+ case 'ExposureMode':
+ switch ($val) {
+ case 0: case 1: case 2:
+ return $this->msg( $tag, $val );
+ }
+ case 'WhiteBalance':
+ switch ($val) {
+ case 0: case 1:
+ return $this->msg( $tag, $val );
+ }
+ case 'SceneCaptureType':
+ switch ($val) {
+ case 0: case 1: case 2: case 3:
+ return $this->msg( $tag, $val );
+ }
+ case 'GainControl':
+ switch ($val) {
+ case 0: case 1: case 2: case 3: case 4:
+ return $this->msg( $tag, $val );
+ }
+ case 'Contrast':
+ switch ($val) {
+ case 0: case 1: case 2:
+ return $this->msg( $tag, $val );
+ }
+ case 'Saturation':
+ switch ($val) {
+ case 0: case 1: case 2:
+ return $this->msg( $tag, $val );
+ }
+ case 'Sharpness':
+ switch ($val) {
+ case 0: case 1: case 2:
+ return $this->msg( $tag, $val );
+ }
+ case 'SubjectDistanceRange':
+ switch ($val) {
+ case 0: case 1: case 2: case 3:
+ return $this->msg( $tag, $val );
+ }
+ case 'GPSLatitudeRef':
+ switch ($val) {
+ case 'N': case 'S':
+ return $this->msg( $tag, $val );
+ }
+ case 'GPSLongitudeRef':
+ switch ($val) {
+ case 'E': case 'W':
+ return $this->msg( $tag, $val );
+ }
+ case 'GPSStatus':
+ switch ($val) {
+ case 'A': case 'V':
+ return $this->msg( $tag, $val );
+ }
+ case 'GPSMeasureMode':
+ switch ($val) {
+ case 2: case 3:
+ return $this->msg( $tag, $val );
+ }
+ case 'GPSSpeedRef':
+ switch ($val) {
+ case 'K': case 'M': case 'N':
+ return $this->msg( $tag, $val );
+ }
+ case 'GPSTrackRef':
+ switch ($val) {
+ case 'T': case 'M':
+ return $this->msg( $tag, $val );
+ }
+ case 'GPSImgDirectionRef':
+ switch ($val) {
+ case 'T': case 'M':
+ return $this->msg( $tag, $val );
+ }
+ case 'GPSDestLatitudeRef':
+ switch ($val) {
+ case 'N': case 'S':
+ return $this->msg( $tag, $val );
+ }
+ case 'GPSDestLongitudeRef':
+ switch ($val) {
+ case 'E': case 'W':
+ return $this->msg( $tag, $val );
+ }
+ case 'GPSDestBearingRef':
+ switch ($val) {
+ case 'T': case 'M':
+ return $this->msg( $tag, $val );
+ }
+ case 'GPSDateStamp':
+ return $wgLang->date( substr($val, 0, 4) . substr($val, 5, 2) . substr($val, 8, 2) . 000000 );
+
+ // This is not in the Exif standard, just a special
+ // case for our purposes which enables wikis to wikify
+ // the make and model to write articles about them.
+ case 'Make': case 'Model':
+ return wfMsg( strtolower( "exif-$tag-value" ), $val );
+ default:
+ return $val;
+ }
+ }
+
+ /**
+ * Conviniance function for format()
+ *
+ * @param string $tag The tag name to pass on
+ * @param string $val The value of the tag
+ * @return string A wfMsg of "exif-$tag-$val" in lower case
+ */
+ function msg( $tag, $val ) {
+ return wfMsg( strtolower("exif-$tag-$val") );
+ }
}
} // MEDIAWIKI
dépôts / lhc / web / wiklou.git / commitdiff