1 files changed, 39 insertions, 0 deletions
diff --git a/utils/thumbnail.php b/utils/thumbnail.php
new file mode 100644
index 0000000..f1f4b38
--- /dev/null
+++ b/utils/thumbnail.php
@@ -0,0 +1,39 @@
+<?php
+function thumbnail($album, $file, $maxwidth, $maxheight) {
+  global $ALBUMS_DIR;
+
+	if($file =="") return "No such image";
+
+  // Config
+  $quality = 70;
+  $width = $maxwidth;
+  $height = $maxheight;
+
+  // Filenames
+  $thumbnaildir = $ALBUMS_DIR . "/" . $album . "/thumbnails/";
+	$thumbnail = $thumbnaildir . $maxwidth . "x" . $maxheight . "_" . $file;
+  $original = $ALBUMS_DIR . "/" . $album . "/" . $file;
+
+  if(!file_exists($thumbnaildir)) {
+    // The thumbnaildir doesn't exist, create it.
+    mkdir($thumbnaildir, 0755);
+  }
+
+  // Create thumbnail
+  if(!file_exists($thumbnail)) {
+    list($width_orig, $height_orig) = getimagesize($original);
+    if ($width && ($width_orig < $height_orig)) {
+      $width = ($height / $height_orig) * $width_orig;
+    } else {
+      $height = ($width / $width_orig) * $height_orig;
+    }
+    $image_p = imagecreatetruecolor($width, $height);
+    $image = imagecreatefromjpeg($original);
+    imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig);
+    imagejpeg($image_p, $thumbnail, $quality);
+  }
+  
+  // Return thumbnail filename
+  return $thumbnail;
+}
+?>
+\ No newline at end of file