For png images with transparency, the imagesaveaplpha() needs to be set to true on the source image in order for the alpha to be preserved when using the modifier methods.

This commit is contained in:
jmwohl 2012-04-06 11:19:30 -03:00
parent aebbb10c9f
commit 797d526c60

View File

@ -30,7 +30,12 @@ class GD extends Object {
switch($type) {
case 1: if(function_exists('imagecreatefromgif')) $this->setGD(imagecreatefromgif($filename)); break;
case 2: if(function_exists('imagecreatefromjpeg')) $this->setGD(imagecreatefromjpeg($filename)); break;
case 3: if(function_exists('imagecreatefrompng')) $this->setGD(imagecreatefrompng($filename)); break;
case 3: if(function_exists('imagecreatefrompng')) {
$img = imagecreatefrompng($filename);
imagesavealpha($img, true); // save alphablending setting (important)
$this->setGD($img);
break;
}
}
}