Added an exception to allow non alpha png files written, if alpha cha…

…nnel is set to 0. An alpha channel is only added, if this value is between 1 and 127 (higher value than 127 is not allowed by php).
mucan54 · Aug 18, 2020 · 15c28af · 15c28af
1 parent 8605e2c
commit 15c28af
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/Writer/PngWriter.php b/src/Writer/PngWriter.php
@@ -96,7 +96,9 @@ private function createInterpolatedImage($baseImage, array $data, QrCodeInterfac
         $backgroundColor = imagecolorallocatealpha($image, $qrCode->getBackgroundColor()['r'], $qrCode->getBackgroundColor()['g'], $qrCode->getBackgroundColor()['b'], $qrCode->getBackgroundColor()['a']);
         imagefill($image, 0, 0, $backgroundColor);
         imagecopyresampled($image, $baseImage, (int) $data['margin_left'], (int) $data['margin_left'], 0, 0, (int) $data['inner_width'], (int) $data['inner_height'], imagesx($baseImage), imagesy($baseImage));
-        imagesavealpha($image, true);
+
+        if($qrCode->getBackgroundColor()['a'] > 0)
+          imagesavealpha($image, true);
 
         return $image;
     }