image/Upload.class.php

<?php

abstract class Upload
{
    /**
     * @param $file array (ex. ['tmp_name' => '...', 'name' => '...', 'type' => '...'])
     * @return Image
     */
    public static function image($file)
    {
        require_once PATH . '/lib/GreagwarImage/GreagwarImage.php';
        $greagwar_image = new GreagwarImage($file['tmp_name']);
        $greagwar_image->setCacheDir('media/cache/images');
        $image = new Image;
        $image->original_filename = $file['name'];
        $image->type = $file['type'];
        self::saveImage($image, $greagwar_image);
        foreach (Image::$sizes as $size) {
            $size_parts = explode('x', $size);
            self::saveImage($image->getVariant($size), $greagwar_image, $size_parts[0] ? : null, $size_parts[1] ? : null);
        }
        return $image;
    }

    /**
     * @param $image Image
     * @param $greagwar_image GreagwarImage
     * @param null $width
     * @param null $height
     * @param bool $crop
     */
    protected static function saveImage($image, $greagwar_image, $width = null, $height = null, $crop = true)
    {
        if ($width || $height) {
            $greagwar_image->resize($width, $height, 0xffffff, false, false, $crop);
        }
        $file_path = $greagwar_image->cacheFile($greagwar_image->guessType(), 87, true);
        $path_parts = pathinfo($file_path);
        $image->path = $path_parts['dirname'];
        $image->filename = $path_parts['basename'];
        $image->size = filesize($image->path . '/' . $image->filename);
        $image->width = $greagwar_image->width();
        $image->height = $greagwar_image->height();
        $image->setIsNotEmpty();
    }

    public static function imageCompareAspectRatio($proportion, $file_path)
    {
        $imagesize = getimagesize($file_path);
        $proprtion_parts = explode('x', $proportion);
        if ($proprtion_parts[0] / $proprtion_parts[1] === $imagesize[0] / $imagesize[1]) {
            return true;
        } else {
            false;
        }
    }
}