lib/phpqrcode/qrimage.php

   1 <?php
   2 /*
   3  * PHP QR Code encoder
   4  *
   5  * Image output of code using GD2
   6  *
   7  * PHP QR Code is distributed under LGPL 3
   8  * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 3 of the License, or any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  23  */
  24
  25     define('QR_IMAGE', true);
  26
  27     class QRimage {
  28
  29         //----------------------------------------------------------------------
  30         public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE)
  31         {
  32             $image = self::image($frame, $pixelPerPoint, $outerFrame);
  33
  34             if ($filename === false) {
  35                 Header("Content-type: image/png");
  36                 ImagePng($image);
  37             } else {
  38                 if($saveandprint===TRUE){
  39                     ImagePng($image, $filename);
  40                     header("Content-type: image/png");
  41                     ImagePng($image);
  42                 }else{
  43                     ImagePng($image, $filename);
  44                 }
  45             }
  46
  47             ImageDestroy($image);
  48         }
  49
  50         //----------------------------------------------------------------------
  51         public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85)
  52         {
  53             $image = self::image($frame, $pixelPerPoint, $outerFrame);
  54
  55             if ($filename === false) {
  56                 Header("Content-type: image/jpeg");
  57                 ImageJpeg($image, null, $q);
  58             } else {
  59                 ImageJpeg($image, $filename, $q);
  60             }
  61
  62             ImageDestroy($image);
  63         }
  64
  65         //----------------------------------------------------------------------
  66         private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4)
  67         {
  68             $h = count($frame);
  69             $w = strlen($frame[0]);
  70
  71             $imgW = $w + 2*$outerFrame;
  72             $imgH = $h + 2*$outerFrame;
  73
  74             $base_image =ImageCreate($imgW, $imgH);
  75
  76             $col[0] = ImageColorAllocate($base_image,255,255,255);
  77             $col[1] = ImageColorAllocate($base_image,0,0,0);
  78
  79             imagefill($base_image, 0, 0, $col[0]);
  80
  81             for($y=0; $y<$h; $y++) {
  82                 for($x=0; $x<$w; $x++) {
  83                     if ($frame[$y][$x] == '1') {
  84                         ImageSetPixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]);
  85                     }
  86                 }
  87             }
  88
  89             $target_image =ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
  90             ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
  91             ImageDestroy($base_image);
  92
  93             return $target_image;
  94         }
  95     }