From 8b93881ce7ab4e0a8b0c8426da1ddfeed19c2309 Mon Sep 17 00:00:00 2001
From: friendica <info@friendica.com>
Date: Tue, 7 Jan 2014 20:36:16 -0800
Subject: qr code support

---
 library/phpqrcode/qrimage.php | 95 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 library/phpqrcode/qrimage.php

(limited to 'library/phpqrcode/qrimage.php')

diff --git a/library/phpqrcode/qrimage.php b/library/phpqrcode/qrimage.php
new file mode 100644
index 000000000..10b0a6e1b
--- /dev/null
+++ b/library/phpqrcode/qrimage.php
@@ -0,0 +1,95 @@
+<?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;
+        }
+    }
\ No newline at end of file
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