cleaned up library files

1 files changed, 47 insertions, 17 deletions

diff --git a/lib/exif.php b/lib/exif.php
index 81f5dd960..55612a433 100644
--- a/lib/exif.php
+++ b/lib/exif.php
@@ -1,51 +1,75 @@
 <?php
+/**
+ * Exif Processing Library
+ *
+ * @package TidypicsExif
+ */
 
+/**
+ * Pull EXIF data from image file
+ * 
+ * @param TidypicsImage $file
+ */
 function td_get_exif($file) {
-	
+
 	// catch for those who don't have exif module loaded
-	if (!is_callable('exif_read_data'))
+	if (!is_callable('exif_read_data')) {
 		return;
-		
+	}
+
 	$mime = $file->mimetype;
-	if ($mime != 'image/jpeg' && $mime != 'image/pjpeg')
+	if ($mime != 'image/jpeg' && $mime != 'image/pjpeg') {
 		return;
+	}
 
 	$filename = $file->getFilenameOnFilestore();
 	$exif = exif_read_data($filename);
 	create_metadata($file->getGUID(), "tp_exif", serialize($exif), "text", $file->getObjectOwnerGUID(), ACCESS_PUBLIC);
 }
 
+/**
+ * Grab array of EXIF data for display
+ * 
+ * @param int $file_guid GUID of TidypicsImage
+ * @return array|false
+ */
 function tp_exif_formatted($file_guid) {
 
 	$metadata_exif = get_metadata_byname($file_guid, "tp_exif");
-	if (!$metadata_exif) { //try to load it from the file if its not in the database
+	if (!$metadata_exif) { 
+		// //try to load it from the file if its not in the database
 		$file = new ElggFile($file_guid);
 		td_get_exif($file);
 		unset($file);
 		$metadata_exif = get_metadata_byname($file_guid, "tp_exif");
 	}
-	
+
 	if (!$metadata_exif) {
 		return false;
 	}
 
 	$exif = unserialize($metadata_exif["value"]);
-	
+
 	$model = $exif['Model'];
-	if(!$model) $model = "N/A";
+	if (!$model) {
+		$model = "N/A";
+	}
 	$exif_data['Model'] = $model;
 
 	$exposure = $exif['ExposureTime'];
-	if (!$exposure) $exposure = "N/A";
+	if (!$exposure) {
+		$exposure = "N/A";
+	}
 	$exif_data['Shutter'] = $exposure;
 
 	//got the code snippet below from http://www.zenphoto.org/support/topic.php?id=17
 	//convert the raw values to understandible values
 	$Fnumber = explode("/", $exif['FNumber']);
-	if ($Fnumber[1] != 0)
+	if ($Fnumber[1] != 0) {
 		$Fnumber = $Fnumber[0] / $Fnumber[1];
-	else
+	} else {
 		$Fnumber = 0;
+	}
 	if (!$Fnumber) {
 		$Fnumber = "N/A";
 	} else {
@@ -54,15 +78,20 @@ function tp_exif_formatted($file_guid) {
 	$exif_data['Aperture'] = $Fnumber;
 
 	$iso = $exif['ISOSpeedRatings'];
-	if (!$iso) $iso = "N/A";
+	if (!$iso) {
+		$iso = "N/A";
+	}
 	$exif_data['ISO Speed'] = $iso;
 
 	$Focal = explode("/", $exif['FocalLength']);
-	if ($Focal[1] != 0)
+	if ($Focal[1] != 0) {
 		$Focal = $Focal[0] / $Focal[1];
-	else
+	} else {
 		$Focal = 0;
-	if (!$Focal || round($Focal) == "0") $Focal = 0;
+	}
+	if (!$Focal || round($Focal) == "0") {
+		$Focal = 0;
+	}
 	if (round($Focal) == 0) {
 		$Focal = "N/A";
 	} else {
@@ -71,9 +100,10 @@ function tp_exif_formatted($file_guid) {
 	$exif_data['Focal Length'] = $Focal;
 
 	$captured = $exif['DateTime'];
-	if (!$captured) $captured = "N/A";
+	if (!$captured) {
+		$captured = "N/A";
+	}
 	$exif_data['Captured'] = $captured;
 
 	return $exif_data;
 }
-?>
\ No newline at end of file