vendor/phpqrcode/qrimage.php

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<?php
/*
 * PHP QR Code encoder
 *
 * Image output of code using GD2
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
    define('QR_IMAGE', true);

    class QRimage {
    
        //----------------------------------------------------------------------
        public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE) 
        {
            $image = self::image($frame, $pixelPerPoint, $outerFrame);
            
            if ($filename === false) {
                Header("Content-type: image/png");
                ImagePng($image);
            } else {
                if($saveandprint===TRUE){
                    ImagePng($image, $filename);
                    header("Content-type: image/png");
                    ImagePng($image);
                }else{
                    ImagePng($image, $filename);
                }
            }
            
            ImageDestroy($image);
        }
    
        //----------------------------------------------------------------------
        public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85) 
        {
            $image = self::image($frame, $pixelPerPoint, $outerFrame);
            
            if ($filename === false) {
                Header("Content-type: image/jpeg");
                ImageJpeg($image, null, $q);
            } else {
                ImageJpeg($image, $filename, $q);            
            }