tcpdf_barcodes_2d.php

Go to the documentation of this file.

<?php
//============================================================+
// File name   : tcpdf_barcodes_2d.php
// Version     : 1.0.014
// Begin       : 2009-04-07
// Last Update : 2013-03-17
// Author      : Nicola Asuni - Tecnick.com LTD - www.tecnick.com - info@tecnick.com
// License     : GNU-LGPL v3 (http://www.gnu.org/copyleft/lesser.html)
// -------------------------------------------------------------------
// Copyright (C) 2009-2013 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__ ) . '/include/barcodes/datamatrix.php');
                                $qrcode = new Datamatrix($code);
                                $this->barcode_array = $qrcode->getBarcodeArray();
                                $this->barcode_array['code'] = $code;
                                break;
                        }
                        case 'PDF417': { // PDF417 (ISO/IEC 15438:2006)
                                require_once(dirname( __FILE__ ) . '/include/barcodes/pdf417.php');
                                if (!isset($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'] = $code;
                                break;
                        }
                        case 'QRCODE': { // QR-CODE
                                require_once(dirname( __FILE__ ) . '/include/barcodes/qrcode.php');
                                if (!isset($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
//============================================================+