Thumbnail creation after/during upload [Code Sharing and Library]

ok i solved and sharing the code.

the functions


function timemachine_createthumb($name, $path, $savepath, $new_w=100, $new_h=100, $quality=80){



    $savefile = $savepath.$name;

    $savepath = $savefile;

    

    if(!file_exists($savepath)){

        

            // Get image location

            $image_path = $path ."/".$name;

            

            // Load image

            $img = null;

            $ext = end(explode('.', $image_path));

            if ($ext == 'jpg' || $ext == 'jpeg') {

                $img = @imagecreatefromjpeg($image_path);

            } else if ($ext == 'png') {

                $img = @imagecreatefrompng($image_path);

            // Only if your version of GD includes GIF support

            } else if ($ext == 'gif') {

                $img = @imagecreatefrompng($image_path);

            }

            

            // If an image was successfully loaded, test the image for size

            if ($img) {

            

                // Get image size and scale ratio

                $width = imagesx($img);

                $height = imagesy($img);

                $scale = min($new_w/$width, $new_h/$height);

            

                // If the image is larger than the max shrink it

                if ($scale < 1) {

                    $new_width = floor($scale*$width);

                    $new_height = floor($scale*$height);

            

                    // Create a new temporary image

                    $tmp_img = imagecreatetruecolor($new_width, $new_height);

            

                    // Copy and resize old image into new image

                    imagecopyresized($tmp_img, $img, 0, 0, 0, 0,

                                     $new_width, $new_height, $width, $height);

                    imagedestroy($img);

                    $img = $tmp_img;

                }

            }

            

            // Create error image if necessary

            if (!$img) {

                $img = imagecreate($new_w, $new_h);

                imagecolorallocate($img,0,0,0);

                $c = imagecolorallocate($img,70,70,70);

                imageline($img,0,0,$new_w,$new_h,$c2);

                imageline($img,$new_w,0,0,$new_h,$c2);

            }

    

            

            // output the image as a file to the output stream



            Imagejpeg($img,$savepath,$quality);



    }

    return $savefile;

}

the upload


//Form birthday_img    

        include_once XOOPS_ROOT_PATH."/class/uploader.php";

        $uploaddir_birthday_img = XOOPS_ROOT_PATH."/uploads/timemachine/birthday/birthday_img/";

        $uploaddir_birthday_thumbs_img = XOOPS_ROOT_PATH."/uploads/timemachine/birthday/birthday_thumbs_img/";

        $uploader_birthday_img = new XoopsMediaUploader($uploaddir_birthday_img, $xoopsModuleConfig["birthday_img_mimetypes"], $xoopsModuleConfig["birthday_img_size"], null, null);



        if ($uploader_birthday_img->fetchMedia("birthday_img")) {

            $uploader_birthday_img->setPrefix(str_replace(" ","_",$_REQUEST["birthday_who"]));

            $uploader_birthday_img->fetchMedia("birthday_img");

            if (!$uploader_birthday_img->upload()) {

                $errors = $uploader_birthday_img->getErrors();

                redirect_header("javascript:history.go(-1)",3, $errors);

            } else {

                $obj->setVar("birthday_img", $uploader_birthday_img->getSavedFileName());

                

                //genero la thumbnail

                $name = $uploader_birthday_img->getSavedFileName();

                $path = $uploaddir_birthday_img;

                $savepath =$uploaddir_birthday_thumbs_img;

                

                $new_w = $xoopsModuleConfig["birthday_img_thumb_width"];

                $new_h = $xoopsModuleConfig["birthday_img_thumb_height"];

                $thumb = timemachine_createthumb($name, $path, $savepath, $new_w, $new_h, $quality=80);

            }