1. Import
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203
html/include/barcode/class/BCGcode39extended.barcode.php
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203
html/include/barcode/class/BCGcode39extended.barcode.php
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<?php
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/**
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* BCGcode39extended.barcode.php
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*--------------------------------------------------------------------
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*
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* Sub-Class - Code 39 Extended
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*
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*--------------------------------------------------------------------
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* Revision History
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* v2.0.0 23 apr 2008 Jean-Sébastien Goupil New Version Update
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*--------------------------------------------------------------------
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* $Id: BCGcode39extended.barcode.php,v 1.3 2009/11/09 04:13:35 jsgoupil Exp $
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* PHP5-Revision: 1.3
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*--------------------------------------------------------------------
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* Copyright (C) Jean-Sebastien Goupil
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* http://www.barcodephp.com
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*/
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include_once('BCGcode39.barcode.php');
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class BCGcode39extended extends BCGcode39 {
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var $EXTENDED_1 = 39; // const
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var $EXTENDED_2 = 40; // const
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var $EXTENDED_3 = 41; // const
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var $EXTENDED_4 = 42; // const
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var $errorText;
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var $indcheck, $data;
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/**
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* Constructor
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*/
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function BCGcode39extended() { // public
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BCGcode39::BCGcode39();
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// We just put parenthesis around special characters.
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$this->keys[$this->EXTENDED_1] = '($)';
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$this->keys[$this->EXTENDED_2] = '(/)';
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$this->keys[$this->EXTENDED_3] = '(+)';
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$this->keys[$this->EXTENDED_4] = '(%)';
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$this->errorText = '';
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}
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/**
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* Saves Text
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*
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* @param string $text
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*/
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function parse($text) {
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$this->text = $text;
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$data = array();
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$indcheck = array();
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$this->errorText = ''; // Reset Error
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$c = strlen($this->text);
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for($i = 0; $i < $c; $i++) {
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$pos = array_search($this->text[$i], $this->keys);
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if($pos === false) {
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// Search in extended?
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$extended = $this->getExtendedVersion($this->text[$i]);
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if($extended === false) {
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$this->errorText .= 'Char \'' . $this->text[$i] . '\' not allowed.'."\n";
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} else {
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$extc = strlen($extended);
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for($j = 0; $j < $extc; $j++) {
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$v = $extended[$j];
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if($v === '$') {
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$indcheck[] = $this->EXTENDED_1;
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$data[] = $this->code[$this->EXTENDED_1];
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} elseif($v === '%') {
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$indcheck[] = $this->EXTENDED_2;
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$data[] = $this->code[$this->EXTENDED_2];
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} elseif($v === '/') {
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$indcheck[] = $this->EXTENDED_3;
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$data[] = $this->code[$this->EXTENDED_3];
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} elseif($v === '+') {
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$indcheck[] = $this->EXTENDED_4;
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$data[] = $this->code[$this->EXTENDED_4];
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} else {
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$pos2 = array_search($v, $this->keys);
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$indcheck[] = $pos2;
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$data[] = $this->code[$pos2];
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}
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}
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}
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} else {
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$indcheck[] = $pos;
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$data[] = $this->code[$pos];
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}
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}
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$this->setData(array($indcheck, $data));
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}
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/**
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* Draws the barcode
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*
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* @param resource $im
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*/
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function draw(&$im) {
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if(!empty($this->errorText)) {
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$error = explode("\n", trim($this->errorText));
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$c = count($error);
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for($i = 0; $i < $c; $i++) {
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$this->drawError($im, $error[$i]);
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}
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} else {
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$c = count($this->data);
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if($c === 0) {
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$this->drawError($im, 'No text has been entered.');
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} else {
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// Starting *
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$this->drawChar($im, $this->code[$this->starting], true);
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for($i = 0; $i < $c; $i++) {
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$this->drawChar($im, $this->data[$i], true);
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}
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// Checksum (rarely used)
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if ($this->checksum === true) {
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$this->drawChar($im, $this->code[$this->checksumValue % 43], true);
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}
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// Ending *
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$this->drawChar($im, $this->code[$this->ending], true);
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$this->drawText($im);
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}
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}
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}
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/**
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* Returns the maximal size of a barcode
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*
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* @return int[]
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*/
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function getMaxSize() {
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$p = BCGBarcode1D::getMaxSize();
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$textlength = 13 * count($this->data) * $this->scale;
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$startlength = 13 * $this->scale;
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$checksumlength = 0;
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if ($this->checksum === true) {
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$checksumlength = 13 * $this->scale;
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}
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$endlength = 13 * $this->scale;
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return array($p[0] + $startlength + $textlength + $checksumlength + $endlength, $p[1]);
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}
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/**
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* Overloaded method to calculate checksum
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*/
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function calculateChecksum() {
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$this->checksumValue = 0;
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$c = count($this->indcheck);
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for ($i = 0; $i < $c; $i++) {
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$this->checksumValue += $this->indcheck[$i];
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}
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$this->checksumValue = $this->checksumValue % 43;
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}
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/**
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* Saves data into the classes.
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*
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* This method will save data, calculate real column number
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* (if -1 was selected), the real error level (if -1 was
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* selected)... It will add Padding to the end and generate
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* the error codes.
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*
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* @param array $data
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*/
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function setData($data) {
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$this->indcheck = $data[0];
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$this->data = $data[1];
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$this->calculateChecksum();
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}
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function getExtendedVersion($char) {
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$o = ord($char);
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if($o === 0)
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return '%U';
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elseif($o >= 1 && $o <= 26)
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return '$' . chr($o + 64);
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elseif(($o >= 33 && $o <= 44) || $o === 47 || $o === 48)
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return '/' . chr($o + 32);
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elseif($o >= 97 && $o <= 122)
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return '+' . chr($o - 32);
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elseif($o >= 27 && $o <= 31)
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return '%' . chr($o + 38);
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elseif($o >= 59 && $o <= 63)
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return '%' . chr($o + 11);
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elseif($o >= 91 && $o <= 95)
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return '%' . chr($o - 16);
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elseif($o >= 123 && $o <= 127)
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return '%' . chr($o - 43);
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elseif($o === 64)
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return '%V';
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elseif($o === 96)
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return '%W';
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elseif($o > 127)
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return false;
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else
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return $char;
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}
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};
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?>
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