ImageHelper implemented

Author: nsiatras

berry/utils.php

@@ -2,4 +2,5 @@
 
 require_once(__DIR__ . "/utils/CrawlerDetector.php");
 require_once(__DIR__ . "/utils/HTMLHelper.php");
+require_once(__DIR__ . "/utils/ImageHelper.php");
 ?>

berry/utils/ImageHelper.php

@@ -0,0 +1,63 @@
+<?php
+
+class ImageHelper
+{
+
+    public function __construct()
+    {
+        
+    }
+
+    /**
+     * Converts .jpg, .png and .gif images into .webp format
+     * @param string $source the source image path to convert
+     * @param int $quality ranges from 0 (worst quality, smaller file) to 100 (best quality, biggest file). 
+     * @param bool $removeOld true if you want to delete the original file
+     * @return string returns the .webp file path
+     */
+    public function ConvertImageToWebP(string $source, int $quality = 100, bool $removeOld = false): string
+    {
+        $dir = pathinfo($source, PATHINFO_DIRNAME);
+        $name = pathinfo($source, PATHINFO_FILENAME);
+        $destination = $dir . DIRECTORY_SEPARATOR . $name . '.webp';
+        $info = getimagesize($source);
+        $isAlpha = false;
+        if ($info['mime'] == 'image/jpeg')
+        {
+            $image = imagecreatefromjpeg($source);
+        }
+        else if ($info['mime'] == 'image/gif')
+        {
+            $isAlpha = true;
+            $image = imagecreatefromgif($source);
+        }
+        else if ($info['mime'] == 'image/png')
+        {
+            $isAlpha = true;
+            $image = imagecreatefrompng($source);
+        }
+        else
+        {
+            return $source;
+        }
+
+        if ($isAlpha)
+        {
+            imagepalettetotruecolor($image);
+            imagealphablending($image, true);
+            imagesavealpha($image, true);
+        }
+        imagewebp($image, $destination, $quality);
+
+        if ($removeOld)
+        {
+            unlink($source);
+        }
+
+        return $destination;
+    }
+
+   
+}
+
+?>

berry/version.php

@@ -23,6 +23,6 @@
   SOFTWARE.
  */
 
-// Version 1.0.3
+// Version 1.0.4
 ?>