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/qrtools.php | 172 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 172 insertions(+)
 create mode 100644 library/phpqrcode/qrtools.php

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

diff --git a/library/phpqrcode/qrtools.php b/library/phpqrcode/qrtools.php
new file mode 100644
index 000000000..3012db493
--- /dev/null
+++ b/library/phpqrcode/qrtools.php
@@ -0,0 +1,172 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Toolset, handy and debug utilites.
+ *
+ * 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
+ */
+
+    class QRtools {
+    
+        //----------------------------------------------------------------------
+        public static function binarize($frame)
+        {
+            $len = count($frame);
+            foreach ($frame as &$frameLine) {
+                
+                for($i=0; $i<$len; $i++) {
+                    $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
+                }
+            }
+            
+            return $frame;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
+        {
+            $barcode_array = array();
+            
+            if (!is_array($mode))
+                $mode = explode(',', $mode);
+                
+            $eccLevel = 'L';
+                
+            if (count($mode) > 1) {
+                $eccLevel = $mode[1];
+            }
+                
+            $qrTab = QRcode::text($code, false, $eccLevel);
+            $size = count($qrTab);
+                
+            $barcode_array['num_rows'] = $size;
+            $barcode_array['num_cols'] = $size;
+            $barcode_array['bcode'] = array();
+                
+            foreach ($qrTab as $line) {
+                $arrAdd = array();
+                foreach(str_split($line) as $char)
+                    $arrAdd[] = ($char=='1')?1:0;
+                $barcode_array['bcode'][] = $arrAdd;
+            }
+                    
+            return $barcode_array;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function clearCache()
+        {
+            self::$frames = array();
+        }
+        
+        //----------------------------------------------------------------------
+        public static function buildCache()
+        {
+			QRtools::markTime('before_build_cache');
+			
+			$mask = new QRmask();
+            for ($a=1; $a <= QRSPEC_VERSION_MAX; $a++) {
+                $frame = QRspec::newFrame($a);
+                if (QR_IMAGE) {
+                    $fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
+                    QRimage::png(self::binarize($frame), $fileName, 1, 0);
+                }
+				
+				$width = count($frame);
+				$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+				for ($maskNo=0; $maskNo<8; $maskNo++)
+					$mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
+            }
+			
+			QRtools::markTime('after_build_cache');
+        }
+
+        //----------------------------------------------------------------------
+        public static function log($outfile, $err)
+        {
+            if (QR_LOG_DIR !== false) {
+                if ($err != '') {
+                    if ($outfile !== false) {
+                        file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    } else {
+                        file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    }
+                }    
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function dumpMask($frame) 
+        {
+            $width = count($frame);
+            for($y=0;$y<$width;$y++) {
+                for($x=0;$x<$width;$x++) {
+                    echo ord($frame[$y][$x]).',';
+                }
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function markTime($markerId)
+        {
+            list($usec, $sec) = explode(" ", microtime());
+            $time = ((float)$usec + (float)$sec);
+            
+            if (!isset($GLOBALS['qr_time_bench']))
+                $GLOBALS['qr_time_bench'] = array();
+            
+            $GLOBALS['qr_time_bench'][$markerId] = $time;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function timeBenchmark()
+        {
+            self::markTime('finish');
+        
+            $lastTime = 0;
+            $startTime = 0;
+            $p = 0;
+
+            echo '<table cellpadding="3" cellspacing="1">
+                    <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
+                    <tbody>';
+
+            foreach($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
+                if ($p > 0) {
+                    echo '<tr><th style="text-align:right">till '.$markerId.': </th><td>'.number_format($thisTime-$lastTime, 6).'s</td></tr>';
+                } else {
+                    $startTime = $thisTime;
+                }
+                
+                $p++;
+                $lastTime = $thisTime;
+            }
+            
+            echo '</tbody><tfoot>
+                <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>'.number_format($lastTime-$startTime, 6).'s</td></tr>
+            </tfoot>
+            </table>';
+        }
+        
+    }
+    
+    //##########################################################################
+    
+    QRtools::markTime('start');
+    
\ No newline at end of file
-- 
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