From 303236107eeea84008257864f4aa0c2864a34349 Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Mon, 18 Sep 2006 05:10:48 +0000
Subject: - Patch #59263 by stefan et al: bugfix, support PNGs with alpha
 layer.

---
 includes/image.inc | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'includes')

diff --git a/includes/image.inc b/includes/image.inc
index 37f377c1a..93622f509 100644
--- a/includes/image.inc
+++ b/includes/image.inc
@@ -223,6 +223,13 @@ function image_gd_resize($source, $destination, $width, $height) {
   }
 
   $res = imageCreateTrueColor($width, $height);
+  if ($info['extension'] == 'png') {
+    $transparency = imagecolorallocatealpha($res, 0, 0, 0, 127);
+    imagealphablending($res, FALSE);
+    imagefilledrectangle($res, 0, 0, $width, $height, $transparency);
+    imagealphablending($res, TRUE);
+    imagesavealpha($res, TRUE);
+  }
   imageCopyResampled($res, $im, 0, 0, 0, 0, $width, $height, $info['width'], $info['height']);
   $result = image_gd_close($res, $destination, $info['extension']);
 
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