From 99ae226607fff411bae3b69475bd1b0e3981d563 Mon Sep 17 00:00:00 2001 From: Andrey Andreev Date: Fri, 5 Oct 2012 15:14:30 +0300 Subject: Add PNG transparency support in CI_Image_lib::text_watermark() (originally from pull #1317, partially fixes #1139) --- 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 899b995d4..ef4187847 100644 --- a/system/libraries/Image_lib.php +++ b/system/libraries/Image_lib.php @@ -1320,6 +1320,13 @@ class CI_Image_lib { imagestring($src_img, $this->wm_font_size, $x_shad, $y_shad, $this->wm_text, $drp_color); imagestring($src_img, $this->wm_font_size, $x_axis, $y_axis, $this->wm_text, $txt_color); } + + // We can preserve transparency for PNG images + if ($this->image_type === 3) + { + imagealphablending($src_img, FALSE); + imagesavealpha($src_img, TRUE); + } } // Output the final image -- cgit v1.2.3-24-g4f1b