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<?php /* vim: set expandtab tabstop=4 softtabstop=4 shiftwidth=4: / /* * Image_Barcode_Code39 class * * Image_Barcode_Code39 creates Code 3 of 9 ( Code39 ) barcode images. It's * implementation borrows heavily for the perl module GD::Barcode::Code39 * * PHP versions 4 * * LICENSE: This source file is subject to version 3.0 of the PHP license * that is available through the world-wide-web at the following URI: * http://www.php.net/license/3_0.txt. If you did not receive a copy of * the PHP License and are unable to obtain it through the web, please * send a note to license@php.net so we can mail you a copy immediately. * * @category Image * @package Image_Barcode * @author Ryan Briones <ryanbriones@webxdesign.org> * @copyright 2005 The PHP Group * @license http://www.php.net/license/3_0.txt PHP License 3.0 * @version CVS: $Id: Code39.php 304741 2010-10-25 09:14:17Z clockwerx $ * @link http://pear.php.net/package/Image_Barcode / require_once "Image/Barcode.php"; if (!function_exists('str_split')) { require_once 'PHP/Compat.php'; PHP_Compat::loadFunction('str_split'); } /* * Image_Barcode_Code39 class * * Package which provides a method to create Code39 using GD library. * * @category Image * @package Image_Barcode * @author Ryan Briones <ryanbriones@webxdesign.org> * @copyright 2005 The PHP Group * @license http://www.php.net/license/3_0.txt PHP License 3.0 * @version Release: @package_version@ * @link http://pear.php.net/package/Image_Barcode * @since Image_Barcode 0.5 / class Image_Barcode_Code39 extends Image_Barcode { /* * Barcode type * @var string / var $_type = 'Code39'; /* * Barcode height * * @var integer / var $_barcodeheight = 50; /* * Bar thin width * * @var integer / var $_barthinwidth = 1; /* * Bar thick width * * @var integer / var $_barthickwidth = 3; /* * Coding map * @var array / var $_coding_map = array( '0' => '000110100', '1' => '100100001', '2' => '001100001', '3' => '101100000', '4' => '000110001', '5' => '100110000', '6' => '001110000', '7' => '000100101', '8' => '100100100', '9' => '001100100', 'A' => '100001001', 'B' => '001001001', 'C' => '101001000', 'D' => '000011001', 'E' => '100011000', 'F' => '001011000', 'G' => '000001101', 'H' => '100001100', 'I' => '001001100', 'J' => '000011100', 'K' => '100000011', 'L' => '001000011', 'M' => '101000010', 'N' => '000010011', 'O' => '100010010', 'P' => '001010010', 'Q' => '000000111', 'R' => '100000110', 'S' => '001000110', 'T' => '000010110', 'U' => '110000001', 'V' => '011000001', 'W' => '111000000', 'X' => '010010001', 'Y' => '110010000', 'Z' => '011010000', '-' => '010000101', '' => '010010100', '+' => '010001010', '$' => '010101000', '%' => '000101010', '/' => '010100010', '.' => '110000100', ' ' => '011000100' ); /** * Constructor * * @param string $text A text that should be in the image barcode * @param int $wThin Width of the thin lines on the barcode * @param int $wThick Width of the thick lines on the barcode * * @author Ryan Briones <ryanbriones@webxdesign.org> * / function Image_Barcode_Code39( $text = '', $wThin = 0, $wThick = 0 ) { // Check $text for invalid characters if ( $this->checkInvalid( $text ) ) { return false; } $this->text = $text; if ( $wThin > 0 ) $this->_barthinwidth = $wThin; if ( $wThick > 0 ) $this->_barthickwidth = $wThick; return true; } /* * Make an image resource using the GD image library * * @param bool $noText Set to true if you'd like your barcode to be sans text * @param int $bHeight height of the barcode image including text * @return resource The Barcode Image (TM) * * @author Ryan Briones <ryanbriones@webxdesign.org> * / function plot($noText = false, $bHeight = 0) { // add start and stop characters $final_text = '' . $this->text . ''; if ( $bHeight > 0 ) { $this->_barcodeheight = $bHeight; } $barcode = ''; foreach ( str_split( $final_text ) as $character ) { $barcode .= $this->_dumpCode( $this->_coding_map[$character] . '0' ); } $barcode_len = strlen( $barcode ); // Create GD image object $img = imagecreate( $barcode_len, $this->_barcodeheight ); // Allocate black and white colors to the image $black = imagecolorallocate( $img, 0, 0, 0 ); $white = imagecolorallocate( $img, 255, 255, 255 ); $font_height = ( $noText ? 0 : imagefontheight( "gdFontSmall" ) ); $font_width = imagefontwidth( "gdFontSmall" ); // fill background with white color imagefill( $img, 0, 0, $white ); // Initialize X position $xpos = 0; // draw barcode bars to image if ( $noText ) { foreach (str_split($barcode) as $character_code ) { if ($character_code == 0 ) { imageline($img, $xpos, 0, $xpos, $this->_barcodeheight, $white); } else { imageline($img, $xpos, 0, $xpos, $this->_barcodeheight, $black); } $xpos++; } } else { foreach (str_split($barcode) as $character_code ) { if ($character_code == 0) { imageline($img, $xpos, 0, $xpos, $this->_barcodeheight - $font_height - 1, $white); } else { imageline($img, $xpos, 0, $xpos, $this->_barcodeheight - $font_height - 1, $black); } $xpos++; } // draw text under barcode imagestring( $img, 'gdFontSmall', ( $barcode_len - $font_width * strlen( $this->text ) )/2, $this->_barcodeheight - $font_height, $this->text, $black ); } return $img; } /** * Send image to the browser; for Image_Barcode compaitbility * * @param string $text * @param string $imgtype Image type; accepts jpg, png, and gif, but gif only works if you've payed for licensing * @param bool $noText Set to true if you'd like your barcode to be sans text * @param int $bHeight height of the barcode image including text * @return gd_image GD image object * * @author Ryan Briones <ryanbriones@webxdesign.org> * / function &draw($text, $imgtype = 'png', $noText = false, $bHeight = 0) { // Check $text for invalid characters if ($this->checkInvalid($text)) { return PEAR::raiseError('Invalid text'); } $this->text = $text; $img = &$this->plot($noText, $bHeight); return $img; } /* * _dumpCode is a PHP implementation of dumpCode from the Perl module * GD::Barcode::Code39. I royally screwed up when trying to do the thing * my own way the first time. This way works. * * @param string $code Code39 barcode code * @return string $result barcode line code * * @access private * * @author Ryan Briones <ryanbriones@webxdesign.org> * * / function _dumpCode($code) { $result = ''; $color = 1; // 1: Black, 0: White // if $bit is 1, line is wide; if $bit is 0 line is thin foreach ( str_split( $code ) as $bit ) { $result .= ( ( $bit == 1 ) ? str_repeat( "$color", $this->_barthickwidth ) : str_repeat( "$color", $this->_barthinwidth ) ); $color = ( ( $color == 0 ) ? 1 : 0 ); } return $result; } /* * Check for invalid characters * * @param string $text text to be ckecked * @return bool returns true when invalid characters have been found * * @author Ryan Briones <ryanbriones@webxdesign.org> * / function checkInvalid($text) { return preg_match( "/[^0-9A-Z\-+\$%\/. ]/", $text ); } } ?>

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