added exif support

4 files changed, 47 insertions, 3 deletions

diff --git a/actions/upload.php b/actions/upload.php
index dd50d2381..6e21fd7b0 100644
--- a/actions/upload.php
+++ b/actions/upload.php
@@ -8,6 +8,7 @@
 	global $CONFIG;

 	include_once dirname(dirname(__FILE__)) . "/lib/resize.php";

 	include_once dirname(dirname(__FILE__)) . "/lib/watermark.php";

+	include_once dirname(dirname(__FILE__)) . "/lib/exif.php";

 

 	// Get common variables

 	$access_id = (int) get_input("access_id");

@@ -155,7 +156,9 @@
 			tp_watermark($thumbs);

 			

 		} // end of image library selector

-					

+

+		//get and store the exif data

+		td_get_exif($file);	

 		array_push($uploaded_images, $file->guid);

 

 		unset($file);  // may not be needed but there seems to be a memory leak

diff --git a/lib/exif.php b/lib/exif.php
new file mode 100644
index 000000000..1b6c2cbd2
--- /dev/null
+++ b/lib/exif.php
@@ -0,0 +1,35 @@
+<?php
+include_once dirname(__FILE__) . "/tidypics.php";
+
+function td_get_exif(Elggfile $file) {
+	$my_file = str_replace("image", "", tp_get_img_dir()) . $file->getFilename();
+	$exif = exif_read_data($my_file);
+	create_metadata($file->getGUID(), "tp_exif", serialize($exif), "string", $file->getObjectOwnerGUID(), 2);
+}
+
+function tp_exif_formatted($file_guid) {
+	$metadata_exif = get_metadata_byname($file_guid, "tp_exif");
+	if($metadata_exif) {
+		$exif = unserialize($metadata_exif["value"]);
+		
+		//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']);
+		$Fnumber = $Fnumber[0] / $Fnumber[1];
+		$Focal = explode("/", $exif['FocalLength']);
+		$Focal = $Focal[0] / $Focal[1];
+		
+		//prepare the text for return
+		$exif_text = "Model: ".$exif['Model']."<br>";
+		$exif_text .= "Shutter: ".$exif['ExposureTime']."<br>";
+		$exif_text .= "Aperture: f/".$Fnumber."<br>";
+		$exif_text .= "ISO Speed: ".$exif['ISOSpeedRatings']."<br>";
+		$exif_text .= "Focal Length: ".round($Focal)."mm<br>";
+		$exif_text .= "Captured: ". $exif['DateTime'];
+	
+		return "<tr><td>$exif_text</td></tr>";
+	} else {
+		return false;
+	}
+}
+?>
\ No newline at end of file
diff --git a/lib/watermark.php b/lib/watermark.php
index 813e298a7..64385ae4a 100644
--- a/lib/watermark.php
+++ b/lib/watermark.php
@@ -2,7 +2,6 @@
 
 function tp_watermark($thumbs) {
 	include_once dirname(__FILE__) . "/tidypics.php";
-
 	global $CONFIG;
 	
 	$user = get_user_entity_as_row($album->owner_guid);
diff --git a/views/default/object/image.php b/views/default/object/image.php
index f64942b61..546cd711e 100644
--- a/views/default/object/image.php
+++ b/views/default/object/image.php
@@ -5,6 +5,8 @@
 	 */
 
 	global $CONFIG;
+	include_once dirname(dirname(dirname(dirname(__FILE__)))) . "/lib/exif.php";
+
 	$file = $vars['entity'];
 	$file_guid = $file->getGUID();
 	$tags = $file->tags;
@@ -180,7 +182,12 @@ if ($photo_tags) {
 														'file_guid' => $file_guid, ) );
 				
 ?>
-
+			<div id="tidypics_breadcrumbs">
+			<?php
+				$exif = tp_exif_formatted($file_guid);
+				if($exif) echo $exif;
+			?>
+		</div>
 		<div id="tidypics_info">
 <?php if (!is_null($tags)) { ?>
 			<div class="object_tag_string"><?php echo elgg_view('output/tags',array('value' => $tags));?></div>