<?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);            

            }

            

            ImageDestroy($image);

        }

    

        //----------------------------------------------------------------------

        private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4) 

        {

            $h = count($frame);

            $w = strlen($frame[0]);

            

            $imgW = $w + 2*$outerFrame;

            $imgH = $h + 2*$outerFrame;

            

            $base_image =ImageCreate($imgW, $imgH);

            

            $col[0] = ImageColorAllocate($base_image,255,255,255);

            $col[1] = ImageColorAllocate($base_image,0,0,0);



            imagefill($base_image, 0, 0, $col[0]);



            for($y=0; $y<$h; $y++) {

                for($x=0; $x<$w; $x++) {

                    if ($frame[$y][$x] == '1') {

                        ImageSetPixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]); 

                    }

                }

            }

            

            $target_image =ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);

            ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);

            ImageDestroy($base_image);

            

            return $target_image;

        }

    }