Factorize the thumbnail generation and move it to the class Book. re #127

book.php

@@ -439,6 +439,42 @@ class Book extends Base {
             echo "Exception : " . $e->getMessage();
         }
     }
+    
+    public function getThumbnail ($width, $height) {
+        if (is_null ($width) && is_null ($height)) {
+            return false;
+        }
+        $file = $this->getFilePath ("jpg");
+        // get image size
+        if ($size = GetImageSize($file)) {
+            $w = $size[0];
+            $h = $size[1];
+            //set new size
+            if (!is_null ($width)) {
+                $nw = $width;
+                if ($nw > $w) { return false; }
+                $nh = ($nw*$h)/$w;
+            } else {
+                $nh = $height;
+                if ($nh > $h) { return false; }
+                $nw = ($nh*$w)/$h;
+            }
+        }
+        else{
+            //set new size
+            $nw = "160";
+            $nh = "120";
+        }
+        //draw the image
+        $src_img = imagecreatefromjpeg($file);
+        $dst_img = imagecreatetruecolor($nw,$nh);
+        imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $nw, $nh, $w, $h);//resizing the image
+        imagejpeg($dst_img,null,80);
+        imagedestroy($src_img);
+        imagedestroy($dst_img);
+        
+        return true;
+    }
 
     public function getLinkArray ()
     {

fetch.php

@@ -63,58 +63,62 @@ function notFound () {
     {
         case "jpg":
             header("Content-Type: image/jpeg");
-            if (isset($_GET["width"]))
-            {
-                $file = $book->getFilePath ($type);
-                // get image size
-                if ($size = GetImageSize($file)) {
-                    $w = $size[0];
-                    $h = $size[1];
-                    //set new size
-                    $nw = $_GET["width"];
-                    if ($nw > $w) { break; }
-                    $nh = ($nw*$h)/$w;
-                }
-                else{
-                    //set new size
-                    $nw = "160";
-                    $nh = "120";
-                }
-                //draw the image
-                $src_img = imagecreatefromjpeg($file);
-                $dst_img = imagecreatetruecolor($nw,$nh);
-                imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $nw, $nh, $w, $h);//resizing the image
-                imagejpeg($dst_img,null,80);
-                imagedestroy($src_img);
-                imagedestroy($dst_img);
-                return;
-            }
-            if (isset($_GET["height"]))
-            {
-                $file = $book->getFilePath ($type);
-                // get image size
-                if ($size = GetImageSize($file)) {
-                    $w = $size[0];
-                    $h = $size[1];
-                    //set new size
-                    $nh = $_GET["height"];
-                    if ($nh > $h) { break; }
-                    $nw = ($nh*$w)/$h;
-                }
-                else{
-                    //set new size
-                    $nw = "160";
-                    $nh = "120";
-                }
-                //draw the image
-                $src_img = imagecreatefromjpeg($file);
-                $dst_img = imagecreatetruecolor($nw,$nh);
-                imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $nw, $nh, $w, $h);//resizing the image
-                imagejpeg($dst_img,null,80);
-                imagedestroy($src_img);
-                imagedestroy($dst_img);
+            if ($book->getThumbnail (getURLParam ("width"), getURLParam ("height"))) {
+                // The cover had to be resized
                 return;
             }
+            // if (isset($_GET["width"]))
+            // {
+                // $file = $book->getFilePath ($type);
+                // // get image size
+                // if ($size = GetImageSize($file)) {
+                    // $w = $size[0];
+                    // $h = $size[1];
+                    // //set new size
+                    // $nw = $_GET["width"];
+                    // if ($nw > $w) { break; }
+                    // $nh = ($nw*$h)/$w;
+                // }
+                // else{
+                    // //set new size
+                    // $nw = "160";
+                    // $nh = "120";
+                // }
+                // //draw the image
+                // $src_img = imagecreatefromjpeg($file);
+                // $dst_img = imagecreatetruecolor($nw,$nh);
+                // imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $nw, $nh, $w, $h);//resizing the image
+                // imagejpeg($dst_img,null,80);
+                // imagedestroy($src_img);
+                // imagedestroy($dst_img);
+                // return;
+            // }
+            // if (isset($_GET["height"]))
+            // {
+                // $file = $book->getFilePath ($type);
+                // // get image size
+                // if ($size = GetImageSize($file)) {
+                    // $w = $size[0];
+                    // $h = $size[1];
+                    // //set new size
+                    // $nh = $_GET["height"];
+                    // if ($nh > $h) { break; }
+                    // $nw = ($nh*$w)/$h;
+                // }
+                // else{
+                    // //set new size
+                    // $nw = "160";
+                    // $nh = "120";
+                // }
+                // //draw the image
+                // $src_img = imagecreatefromjpeg($file);
+                // $dst_img = imagecreatetruecolor($nw,$nh);
+                // imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $nw, $nh, $w, $h);//resizing the image
+                // imagejpeg($dst_img,null,80);
+                // imagedestroy($src_img);
+                // imagedestroy($dst_img);
+                // return;
+            // }
             break;
         default:
             header("Content-Type: " . Data::$mimetypes[$type]);