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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.

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jmwohl 2012-04-06 11:19:30 -03:00
parent aebbb10c9f
commit 797d526c60
1 changed files with 6 additions and 1 deletions
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7
filesystem/GD.php
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@ -30,7 +30,12 @@ class GD extends Object {
switch($type) { switch($type) {
case 1: if(function_exists('imagecreatefromgif')) $this->setGD(imagecreatefromgif($filename)); break; case 1: if(function_exists('imagecreatefromgif')) $this->setGD(imagecreatefromgif($filename)); break;
case 2: if(function_exists('imagecreatefromjpeg')) $this->setGD(imagecreatefromjpeg($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;
}
} }
} }