2dbarcodes.php

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<?php
//============================================================+
// File name   : 2dbarcodes.php
// Version     : 1.0.014
// Begin       : 2009-04-07
// Last Update : 2012-04-30
// Author      : Nicola Asuni - Tecnick.com LTD - Manor Coach House, Church Hill, Aldershot, Hants, GU12 4RQ, UK - www.tecnick.com - info@tecnick.com
// License     : GNU-LGPL v3 (http://www.gnu.org/copyleft/lesser.html)
// -------------------------------------------------------------------
// Copyright (C) 2009-2012  Nicola Asuni - Tecnick.com LTD
//
// This file is part of TCPDF software library.
//
// TCPDF 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 (at your option) any later version.
//
// TCPDF 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 TCPDF.  If not, see <http://www.gnu.org/licenses/>.
//
// See LICENSE.TXT file for more information.
// -------------------------------------------------------------------
//
// Description : PHP class to creates array representations for
//               2D barcodes to be used with TCPDF.
//
//============================================================+

class TCPDF2DBarcode {

     protected $barcode_array = false;

     public function __construct($code, $type) {
          $this->setBarcode($code, $type);
     }

     public function getBarcodeArray() {
          return $this->barcode_array;
     }

     public function getBarcodeSVG($w=3, $h=3, $color='black') {
          // send headers
          $code = $this->getBarcodeSVGcode($w, $h, $color);
          header('Content-Type: application/svg+xml');
          header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
          header('Pragma: public');
          header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
          header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT');
          header('Content-Disposition: inline; filename="'.md5($code).'.svg";');
          //header('Content-Length: '.strlen($code));
          echo $code;
     }

     public function getBarcodeSVGcode($w=3, $h=3, $color='black') {
          // replace table for special characters
          $repstr = array("\0" => '', '&' => '&amp;', '<' => '&lt;', '>' => '&gt;');
          $svg = '<'.'?'.'xml version="1.0" standalone="no"'.'?'.'>'."\n";
          $svg .= '<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">'."\n";
          $svg .= '<svg width="'.round(($this->barcode_array['num_cols'] * $w), 3).'" height="'.round(($this->barcode_array['num_rows'] * $h), 3).'" version="1.1" xmlns="http://www.w3.org/2000/svg">'."\n";
          $svg .= "\t".'<desc>'.strtr($this->barcode_array['code'], $repstr).'</desc>'."\n";
          $svg .= "\t".'<g id="elements" fill="'.$color.'" stroke="none">'."\n";
          // print barcode elements
          $y = 0;
          // for each row
          for ($r = 0; $r < $this->barcode_array['num_rows']; ++$r) {
               $x = 0;
               // for each column
               for ($c = 0; $c < $this->barcode_array['num_cols']; ++$c) {
                    if ($this->barcode_array['bcode'][$r][$c] == 1) {
                         // draw a single barcode cell
                         $svg .= "\t\t".'<rect x="'.$x.'" y="'.$y.'" width="'.$w.'" height="'.$h.'" />'."\n";
                    }
                    $x += $w;
               }
               $y += $h;
          }
          $svg .= "\t".'</g>'."\n";
          $svg .= '</svg>'."\n";
          return $svg;
     }

     public function getBarcodeHTML($w=10, $h=10, $color='black') {
          $html = '<div style="font-size:0;position:relative;width:'.($w * $this->barcode_array['num_cols']).'px;height:'.($h * $this->barcode_array['num_rows']).'px;">'."\n";
          // print barcode elements
          $y = 0;
          // for each row
          for ($r = 0; $r < $this->barcode_array['num_rows']; ++$r) {
               $x = 0;
               // for each column
               for ($c = 0; $c < $this->barcode_array['num_cols']; ++$c) {
                    if ($this->barcode_array['bcode'][$r][$c] == 1) {
                         // draw a single barcode cell
                         $html .= '<div style="background-color:'.$color.';width:'.$w.'px;height:'.$h.'px;position:absolute;left:'.$x.'px;top:'.$y.'px;">&nbsp;</div>'."\n";
                    }
                    $x += $w;
               }
               $y += $h;
          }
          $html .= '</div>'."\n";
          return $html;
     }

     public function getBarcodePNG($w=3, $h=3, $color=array(0,0,0)) {
          // calculate image size
          $width = ($this->barcode_array['num_cols'] * $w);
          $height = ($this->barcode_array['num_rows'] * $h);
          if (function_exists('imagecreate')) {
               // GD library
               $imagick = false;
               $png = imagecreate($width, $height);
               $bgcol = imagecolorallocate($png, 255, 255, 255);
               imagecolortransparent($png, $bgcol);
               $fgcol = imagecolorallocate($png, $color[0], $color[1], $color[2]);
          } elseif (extension_loaded('imagick')) {
               $imagick = true;
               $bgcol = new imagickpixel('rgb(255,255,255');
               $fgcol = new imagickpixel('rgb('.$color[0].','.$color[1].','.$color[2].')');
               $png = new Imagick();
               $png->newImage($width, $height, 'none', 'png');
               $bar = new imagickdraw();
               $bar->setfillcolor($fgcol);
          } else {
               return false;
          }
          // print barcode elements
          $y = 0;
          // for each row
          for ($r = 0; $r < $this->barcode_array['num_rows']; ++$r) {
               $x = 0;
               // for each column
               for ($c = 0; $c < $this->barcode_array['num_cols']; ++$c) {
                    if ($this->barcode_array['bcode'][$r][$c] == 1) {
                         // draw a single barcode cell
                         if ($imagick) {
                              $bar->rectangle($x, $y, ($x + $w - 1), ($y + $h - 1));
                         } else {
                              imagefilledrectangle($png, $x, $y, ($x + $w - 1), ($y + $h - 1), $fgcol);
                         }
                    }
                    $x += $w;
               }
               $y += $h;
          }
          // send headers
          /*header('Content-Type: image/png');
          header('Cache-Control: public, must-revalidate, max-age=0'); // HTTP/1.1
          header('Pragma: public');
          header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); // Date in the past
          header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT');
          */
          if ($imagick) {
               $png->drawimage($bar);
               echo $png;
          } else {
               imagepng($png);
               imagedestroy($png);
          }
     }

     public function setBarcode($code, $type) {
          $mode = explode(',', $type);
          $qrtype = strtoupper($mode[0]);
          switch ($qrtype) {
               case 'DATAMATRIX': { // DATAMATRIX (ISO/IEC 16022)
                    require_once(dirname(__FILE__).'/datamatrix.php');
                    $qrcode = new Datamatrix($code);
                    $this->barcode_array = $qrcode->getBarcodeArray();
                    $this->barcode_array['code'] = $code;
                    break;
               }
               case 'PDF417': { // PDF417 (ISO/IEC 15438:2006)
                    require_once(dirname(__FILE__).'/pdf417.php');
                    if (!isset($mode[1]) OR ($mode[1] === '')) {
                         $aspectratio = 2; // default aspect ratio (width / height)
                    } else {
                         $aspectratio = floatval($mode[1]);
                    }
                    if (!isset($mode[2]) OR ($mode[2] === '')) {
                         $ecl = -1; // default error correction level (auto)
                    } else {
                         $ecl = intval($mode[2]);
                    }
                    // set macro block
                    $macro = array();
                    if (isset($mode[3]) AND ($mode[3] !== '') AND isset($mode[4]) AND ($mode[4] !== '') AND isset($mode[5]) AND ($mode[5] !== '')) {
                         $macro['segment_total'] = intval($mode[3]);
                         $macro['segment_index'] = intval($mode[4]);
                         $macro['file_id'] = strtr($mode[5], "\xff", ',');
                         for ($i = 0; $i < 7; ++$i) {
                              $o = $i + 6;
                              if (isset($mode[$o]) AND ($mode[$o] !== '')) {
                                   // add option
                                   $macro['option_'.$i] = strtr($mode[$o], "\xff", ',');
                              }
                         }
                    }
                    $qrcode = new PDF417($code, $ecl, $aspectratio, $macro);
                    $this->barcode_array = $qrcode->getBarcodeArray();
                    $this->barcode_array['code'] = $code;
                    break;
               }
               case 'QRCODE': { // QR-CODE
                    require_once(dirname(__FILE__).'/qrcode.php');
                    if (!isset($mode[1]) OR (!in_array($mode[1],array('L','M','Q','H')))) {
                         $mode[1] = 'L'; // Ddefault: Low error correction
                    }
                    $qrcode = new QRcode($code, strtoupper($mode[1]));
                    $this->barcode_array = $qrcode->getBarcodeArray();
                    $this->barcode_array['code'] = $code;
                    break;
               }
               case 'RAW':
               case 'RAW2': { // RAW MODE
                    // remove spaces
                    $code = preg_replace('/[\s]*/si', '', $code);
                    if (strlen($code) < 3) {
                         break;
                    }
                    if ($qrtype == 'RAW') {
                         // comma-separated rows
                         $rows = explode(',', $code);
                    } else { // RAW2
                         // rows enclosed in square parentheses
                         $code = substr($code, 1, -1);
                         $rows = explode('][', $code);
                    }
                    $this->barcode_array['num_rows'] = count($rows);
                    $this->barcode_array['num_cols'] = strlen($rows[0]);
                    $this->barcode_array['bcode'] = array();
                    foreach ($rows as $r) {
                         $this->barcode_array['bcode'][] = str_split($r, 1);
                    }
                    $this->barcode_array['code'] = $code;
                    break;
               }
               case 'TEST': { // TEST MODE
                    $this->barcode_array['num_rows'] = 5;
                    $this->barcode_array['num_cols'] = 15;
                    $this->barcode_array['bcode'] = array(
                         array(1,1,1,0,1,1,1,0,1,1,1,0,1,1,1),
                         array(0,1,0,0,1,0,0,0,1,0,0,0,0,1,0),
                         array(0,1,0,0,1,1,0,0,1,1,1,0,0,1,0),
                         array(0,1,0,0,1,0,0,0,0,0,1,0,0,1,0),
                         array(0,1,0,0,1,1,1,0,1,1,1,0,0,1,0));
                    $this->barcode_array['code'] = $code;
                    break;
               }
               default: {
                    $this->barcode_array = false;
               }
          }
     }
} // end of class

//============================================================+
// END OF FILE
//============================================================+