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authorAndrey Andreev <narf@bofh.bg>2012-10-05 14:14:30 +0200
committerAndrey Andreev <narf@bofh.bg>2012-10-05 14:14:30 +0200
commit99ae226607fff411bae3b69475bd1b0e3981d563 (patch)
tree4ba675b36bc1cebc3495a9a0e901cce77d103bee /system/libraries
parent241a69be96de350b18d875304eb1e361b710e148 (diff)
Add PNG transparency support in CI_Image_lib::text_watermark() (originally from pull #1317, partially fixes #1139)
Diffstat (limited to 'system/libraries')
-rw-r--r--system/libraries/Image_lib.php7
1 files changed, 7 insertions, 0 deletions
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