[Site] Image logos producteurs

frontend/controllers/SiteController.php

     {
         return $this->render('credit');
     }
+
+    public function actionImageProducersLogos()
+    {
+        $image = @imagecreatetruecolor(1600, 1200);
+
+        // fond en blanc
+        $whiteBackground = imagecolorallocate($image, 255, 255, 255);
+        imagefill($image,0,0,$whiteBackground);
+
+        // logos des producteurs
+        $producerModule = $this->getProducerModule();
+        $producersArray = $producerModule->getRepository()->findProducersActive();
+        shuffle($producersArray);
+
+        $x = 50;
+        $y = 0;
+        foreach($producersArray as $producer) {
+            if($producer->logo) {
+                $logo = null;
+                $srcLogo = dirname(__FILE__).'/../../producer/web/uploads/'.$producer->logo;
+                $imageType = exif_imagetype($srcLogo);
+                if($imageType == IMAGETYPE_PNG) {
+                    $logo = imagecreatefrompng($srcLogo);
+                    $backgroundBlack = imagecolorallocate($logo , 0, 0, 0);
+                    imagecolortransparent($logo, $backgroundBlack);
+                }
+                elseif($imageType == IMAGETYPE_JPEG) {
+                    $logo = imagecreatefromjpeg($srcLogo);
+                }
+
+                if($logo) {
+                    imagealphablending($logo, false);
+                    imagesavealpha($logo, true);
+
+                    list(
+                        $sourceImageWidth,
+                        $sourceImageHeight
+                        ) = getimagesize( $srcLogo);
+
+                    if($sourceImageWidth && $sourceImageHeight) {
+                        $targetImageWidth  = 120;
+                        $targetImageHeight = 120;
+
+                        $sourceAspectRatio = $sourceImageWidth / $sourceImageHeight;
+                        $targetAspectRatio = $targetImageWidth / $targetImageHeight;
+
+                        if ($targetAspectRatio > $sourceAspectRatio) {
+                            $targetImageHeight = (int) ($targetImageWidth / $sourceAspectRatio);
+                        }
+                        else {
+                            $targetImageWidth = (int) ($targetImageHeight * $sourceAspectRatio);
+                        }
+
+                        $transparency = 0.7;
+                        imagefilter($logo, IMG_FILTER_COLORIZE, 0,0,0,127 * $transparency);
+                        imagecopyresampled($image, $logo, $x, $y + 60, 0, 0, $targetImageWidth, $targetImageHeight, $sourceImageWidth, $sourceImageHeight);
+
+                        $x += $targetImageWidth + 75;
+                        if($x > 1600) {
+                            $x = rand(-50, 50);
+                            $y += 200;
+                        }
+                    }
+                }
+            }
+        }
+
+        // noir et blanc
+        imagefilter($image, IMG_FILTER_GRAYSCALE);
+
+        // rendu de l'image
+        header ('Content-Type: image/png');
+        imagepng($image);
+        imagedestroy($image);
+        die();
+    }
 }