From 595bfd1484ecc8212d6c3c028210b4d1ae78baba Mon Sep 17 00:00:00 2001 From: Derek Jones Date: Fri, 20 Aug 2010 10:28:22 -0500 Subject: Added ability in the Image Library to handle PNG transparency for resize operations when using the GD lib. --- system/libraries/Image_lib.php | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'system/libraries/Image_lib.php') diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php index 21e0a709b..806d942ba 100644 --- a/system/libraries/Image_lib.php +++ b/system/libraries/Image_lib.php @@ -513,6 +513,13 @@ class CI_Image_lib { } $dst_img = $create($this->width, $this->height); + + if ($this->image_type == 3) // png we can actually preserve transparency + { + imagealphablending($dst_img, FALSE); + imagesavealpha($dst_img, TRUE); + } + $copy($dst_img, $src_img, 0, 0, $this->x_axis, $this->y_axis, $this->width, $this->height, $this->orig_width, $this->orig_height); // Show the image -- cgit v1.2.3-24-g4f1b