pulsarvp/vps-tools

<?php
    /**
     * @author    Evgenii Kuteiko <kuteiko@mail.ru>
     * @copyright Copyright (c) 2017
     * @date      2017-08-17
     * @package   vps\tools\helpers
     */

    namespace vps\tools\helpers;

    use Imagine\Image\Box;
    use Imagine\Image\Point;
    use Imagine\Imagick\Imagine;

    /**
     * Class ImageHelper
     * @package vps\tools\helpers
     */
    class ImageHelper
    {

        /**
         * Crop image to square.
         * ```php
         * $cropBoxData = ["x"=>'50',"y"=>'0',"width"=>'50',"height"=>'50'];
         * $result = ImageHelper::cropSquare('/var/www/img.png','var/www/img_crop.png',$cropBoxData);
         * // $result will be: true
         * ```
         *
         * @param string $file
         * @param string $filepath
         * @param array $cropBoxData
         *
         * @return boolean
         */
        public static function cropSquare ($file, $filepath, $cropBoxData = null)
        {

            if (!RemoteFileHelper::exists($file))
                return false;

            $imagine = new Imagine();
            $crop = $imagine->open($file);
            $size = $crop->getSize();

            if (is_array($cropBoxData))
            {

                $cropBoxData['x'] = max($cropBoxData['x'], 0);
                $cropBoxData['y'] = max($cropBoxData['y'], 0);
                $cropBoxData['width'] = min($cropBoxData['width'], $size->getWidth());
                $cropBoxData['height'] = min($cropBoxData['height'], $size->getHeight());
                $crop->crop(new Point($cropBoxData['x'], $cropBoxData['y']), new Box($cropBoxData['width'], $cropBoxData['height']))->save($filepath);
            }
            else
            {
                $width = min($size->getHeight(), $size->getWidth());
                $centreX = round($size->getWidth() / 2);
                $centreY = round($size->getHeight() / 2);
                $cropWidthHalf = round($width / 2);
                $cropHeightHalf = round($width / 2);

                $x1 = max(0, $centreX - $cropWidthHalf);
                $y1 = max(0, $centreY - $cropHeightHalf);

                $x2 = min($width, $centreX + $cropWidthHalf);
                $y2 = min($width, $centreY + $cropHeightHalf);

                $crop->crop(new Point($x1, $y1), new Box($x2, $y2))->save($filepath);
            }

            return true;
        }
    }