var $mFormattedExifData;
/**#@-*/
+
+ /**#@+
+ * @var string
+ * @access private
+ */
+
+ /**
+ * The file being processed
+ */
+ var $file;
+ /**
+ * The basename of the file being processed
+ */
+ var $basename;
+
/**
* The private log to log to
- *
- * @var string
- * @access private
*/
var $log = 'exif';
+
+ /**#@-*/
/**
* Constructor
),
);
- $basename = basename( $file );
+ $this->file = $file;
+ $this->basename = basename( $this->file );
$this->makeFlatExifTags();
- $this->debugFile( $basename, __FUNCTION__, true );
+ $this->debugFile( $this->basename, __FUNCTION__, true );
wfSuppressWarnings();
- $data = exif_read_data( $file );
+ $data = exif_read_data( $this->file );
wfRestoreWarnings();
/**
* exif_read_data() will return false on invalid input, such as
$this->makeFilteredData();
$this->makeFormattedData();
- $this->debugFile( $basename, __FUNCTION__, false );
+ $this->debugFile( __FUNCTION__, false );
}
/**#@+
* @paran string $fname The name of the function calling this function
* @param bool $bool $io Specify whether we're beginning or ending
*/
- function debugFile( $basename, $fname, $io ) {
+ function debugFile( $fname, $io ) {
$class = ucfirst( __CLASS__ );
if ( $io )
- wfDebugLog( $this->log, "$class::$fname: begin processing: '$basename'\n" );
+ wfDebugLog( $this->log, "$class::$fname: begin processing: '{$this->basename}'\n" );
else
- wfDebugLog( $this->log, "$class::$fname: end processing: '$basename'\n" );
+ wfDebugLog( $this->log, "$class::$fname: end processing: '{$this->basename}'\n" );
}
}
case 'Software':
$tags[$tag] = $this->msg( $tag, '', $val );
break;
+
+ case 'ExposureTime':
+ // Show the pretty fraction as well as decimal version
+ $tags[$tag] = wfMsg( 'exif-exposuretime-format',
+ $this->formatFraction( $val ), $this->formatNum( $val ) );
+ break;
+
+ case 'FNumber':
+ $tags[$tag] = wfMsg( 'exif-fnumber-format',
+ $this->formatNum( $val ) );
+ break;
+
+ case 'FocalLength':
+ $tags[$tag] = wfMsg( 'exif-focallength-format',
+ $this->formatNum( $val ) );
+ break;
+
default:
$tags[$tag] = $this->formatNum( $val );
break;
* @return string A wfMsg of "exif-$tag-$val" in lower case
*/
function msg( $tag, $val, $arg = null ) {
+ global $wgContLang;
+
if ($val === '')
$val = 'value';
- return wfMsg( strtolower( "exif-$tag-$val" ), $arg );
+ return wfMsg( $wgContLang->lc( "exif-$tag-$val" ), $arg );
}
/**
else
return $num;
}
+
+ /**
+ * Format a rational number, reducing fractions
+ *
+ * @access private
+ *
+ * @param mixed $num The value to format
+ * @return mixed A floating point number or whatever we were fed
+ */
+ function formatFraction( $num ) {
+ if ( preg_match( '/^(\d+)\/(\d+)$/', $num, $m ) ) {
+ $numerator = intval( $m[1] );
+ $denominator = intval( $m[2] );
+ $gcd = $this->gcd( $numerator, $denominator );
+ if( $gcd != 0 ) {
+ // 0 shouldn't happen! ;)
+ return $numerator / $gcd . '/' . $denominator / $gcd;
+ }
+ }
+ return $this->formatNum( $num );
+ }
+
+ /**
+ * Calculate the greatest common divisor of two integers.
+ *
+ * @param int $a
+ * @param int $b
+ * @return int
+ * @access private
+ */
+ function gcd( $a, $b ) {
+ /*
+ // http://en.wikipedia.org/wiki/Euclidean_algorithm
+ // Recursive form would be:
+ if( $b == 0 )
+ return $a;
+ else
+ return gcd( $b, $a % $b );
+ */
+ while( $b != 0 ) {
+ $remainder = $a % $b;
+
+ // tail recursion...
+ $a = $b;
+ $b = $remainder;
+ }
+ return $a;
+ }
}