tcpdf.php

一个用PHP编写的

<?php
//============================================================+
// File name   : tcpdf.php
// Begin       : 2002-08-03
// Last Update : 2008-02-28
// Author      : Nicola Asuni
// Version     : 2.2.002
// License     : GNU LGPL (http://www.gnu.org/copyleft/lesser.html)
//
// Description : This is a PHP5 class for generating PDF files 
//               on-the-fly without requiring external 
//               extensions.
//
// IMPORTANT:
// This class was originally derived in 2002 from the Public 
// Domain FPDF class by Olivier Plathey (http://www.fpdf.org).
//
// Main features:
//  - supports all ISO page formats; 
//  - supports UTF-8 Unicode and Right-To-Left languages; 
//  - supports document encryption; 
//  - includes methods to publish some xhtml code; 
//  - includes graphic and transformation methods;
//  - includes bookmarks;
//  - includes Javascript and forms support;
//  - includes a method to print various barcode formats using an improved version of "Generic Barcode Render Class" by Karim Mribti (http://www.mribti.com/barcode/) (require GD library: http://www.boutell.com/gd/) 
//  - supports TrueTypeUnicode, TrueType, Type1 and encoding; 
//  - supports custom page formats, margins and units of measure; 
//  - includes methods for page header and footer management; 
//  - supports automatic page break; 
//  - supports automatic page numbering; 
//  - supports automatic line break and text justification; 
//  - supports JPEG, PNG anf GIF images; 
//  - supports colors; 
//  - supports links; 
//  - support page compression (require zlib extension: http://www.gzip.org/zlib/); 
//  - the source code is full documented in PhpDocumentor Style (http://www.phpdoc.org). 
//
// -----------------------------------------------------------
// THANKS TO:
// 
// Olivier Plathey (http://www.fpdf.org) for original FPDF.
// Efthimios Mavrogeorgiadis ([e-mail]) for suggestions on RTL language support.
// Klemen Vodopivec (http://www.fpdf.de/downloads/addons/37/) for Encryption algorithm.
// Warren Sherliker ([e-mail]) for better image handling.
// dullus for text Justification.
// Bob Vincent ([e-mail]) for <li> value attribute.
// Patrick Benny for text stretch suggestion on Cell().
// Johannes G黱tert for JavaScript support.
// Denis Van Nuffelen for Dynamic Form.
// Jacek Czekaj for multibyte justification
// Anthony Ferrara for the reintroduction of legacy image methods.
// Anyone that has reported a bug or sent a suggestion.
//============================================================+



/**
 * This is a PHP5 class for generating PDF files on-the-fly without requiring external extensions.<br>
 * TCPDF project (http://tcpdf.sourceforge.net) has been originally derived from the Public Domain FPDF class by Olivier Plathey (http://www.fpdf.org).<br>
 * <h3>TCPDF main features are:</h3>
 * <ul>
 * <li>supports all ISO page formats;</li>
 * <li>supports UTF-8 Unicode and Right-To-Left languages;</li>
 * <li>supports document encryption;</li>
 * <li>includes methods to publish some xhtml code, supporting the following elements: h1, h2, h3, h4, h5, h6, b, u, i, a, img, p, br, strong, em, font, blockquote, li, ul, ol, hr, td, th, tr, table, sup, sub, small;</li>
 * <li>includes a method to print various barcode formats using an improved version of "Generic Barcode Render Class" by Karim Mribti (<a href="http://www.mribti.com/barcode/" target="_blank" title="Generic Barcode Render Class by Karim Mribti">http://www.mribti.com/barcode/</a>) (require GD library: <a href="http://www.boutell.com/gd/" target="_blank" title="GD library">http://www.boutell.com/gd/</a>)</li>
 * <li>supports TrueTypeUnicode, TrueType, Type1 and encoding; </li>
 * <li>supports custom page formats, margins and units of measure;</li>
 * <li>includes methods for page header and footer management;</li>
 * <li>supports automatic page break;</li>
 * <li>supports automatic page numbering;</li>
 * <li>supports automatic line break and text justification;</li>
 * <li>supports JPEG, PNG anf GIF images;</li>
 * <li>supports colors;</li>
 * <li>supports links;</li>
 * <li>support page compression (require zlib extension: <a href="http://www.gzip.org/zlib/" target="_blank" title="zlib">http://www.gzip.org/zlib/</a>);</li>
 * <li>the source code is full documented in PhpDocumentor Style (<a href="http://www.phpdoc.org" target="_blank" title="phpDocumentor">http://www.phpdoc.org</a>).</li>
 * </ul>
 * Tools to encode your unicode fonts are on fonts/ttf2ufm directory.</p>
 * @name TCPDF
 * @package com.tecnick.tcpdf
 * @abstract Class for generating PDF files on-the-fly without requiring external extensions.
 * @author Nicola Asuni
 * @copyright 2004-2008 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - [e-mail]
 * @link http://tcpdf.sourceforge.net
 * @license http://www.gnu.org/copyleft/lesser.html LGPL
 * @version 2.2.002
 */

/**
 * include configuration file
 * (Disabled in phpMyAdmin)
 */
//require_once(dirname(__FILE__).'/config/tcpdf_config.php');

if(!class_exists('TCPDF', false)) {
	/**
	 * define default PDF document producer
	 */ 
	define('PDF_PRODUCER','TCPDF 2.2.002 (http://tcpdf.sf.net)');
	
	/**
	* This is a PHP5 class for generating PDF files on-the-fly without requiring external extensions.<br>
	* TCPDF project (http://tcpdf.sourceforge.net) has been originally derived from the Public Domain FPDF class by Olivier Plathey (http://www.fpdf.org).<br>
	* To add your own TTF fonts please read /fonts/README.TXT
	* @name TCPDF
	* @package com.tecnick.tcpdf
	* @version 2.2.002
	* @author Nicola Asuni
	* @link http://tcpdf.sourceforge.net
	* @license http://www.gnu.org/copyleft/lesser.html LGPL
	*/
	class TCPDF {
		
		// Private or Protected properties

		/**
		* @var current page number
		* @access protected
		*/
		protected $page;
		
		/**
		* @var current object number
		* @access protected
		*/
		protected $n;

		/**
		* @var array of object offsets
		* @access protected
		*/
		protected $offsets;

		/**
		* @var buffer holding in-memory PDF
		* @access protected
		*/
		protected $buffer;

		/**
		* @var array containing pages
		* @access protected
		*/
		protected $pages;

		/**
		* @var current document state
		* @access protected
		*/
		protected $state;

		/**
		* @var compression flag
		* @access protected
		*/
		protected $compress;

		/**
		* @var default page orientation (P = Portrait, L = Landscape)
		* @access protected
		*/
		protected $DefOrientation;

		/**
		* @var current page orientation (P = Portrait, L = Landscape)
		* @access protected
		*/
		protected $CurOrientation;

		/**
		* @var array indicating page orientation changes
		* @access protected
		*/
		protected $OrientationChanges;

		/**
		* @var scale factor (number of points in user unit)
		* @access protected
		*/
		protected $k;

		/**
		* @var width of page format in points
		* @access protected
		*/
		protected $fwPt;

		/**
		* @var height of page format in points
		* @access protected
		*/
		protected $fhPt;

		/**
		* @var width of page format in user unit
		* @access protected
		*/
		protected $fw;

		/**
		* @var height of page format in user unit
		* @access protected
		*/
		protected $fh;

		/**
		* @var current width of page in points
		* @access protected
		*/
		protected $wPt;

		/**
		* @var current height of page in points
		* @access protected
		*/
		protected $hPt;

		/**
		* @var current width of page in user unit
		* @access protected
		*/
		protected $w;

		/**
		* @var current height of page in user unit
		* @access protected
		*/
		protected $h;

		/**
		* @var left margin
		* @access protected
		*/
		protected $lMargin;

		/**
		* @var top margin
		* @access protected
		*/
		protected $tMargin;

		/**
		* @var right margin
		* @access protected
		*/
		protected $rMargin;

		/**
		* @var page break margin
		* @access protected
		*/
		protected $bMargin;

		/**
		* @var cell internal padding
		* @access protected
		*/
		protected $cMargin;

		/**
		* @var current horizontal position in user unit for cell positioning
		* @access protected
		*/
		protected $x;

		/**
		* @var current vertical position in user unit for cell positioning
		* @access protected
		*/
		protected $y;

		/**
		* @var height of last cell printed
		* @access protected
		*/
		protected $lasth;

		/**
		* @var line width in user unit
		* @access protected
		*/
		protected $LineWidth;

		/**
		* @var array of standard font names
		* @access protected
		*/
		protected $CoreFonts;

		/**
		* @var array of used fonts
		* @access protected
		*/
		protected $fonts;

		/**
		* @var array of font files
		* @access protected
		*/
		protected $FontFiles;

		/**
		* @var array of encoding differences
		* @access protected
		*/
		protected $diffs;

		/**
		* @var array of used images
		* @access protected
		*/
		protected $images;

		/**
		* @var array of links in pages
		* @access protected
		*/
		protected $PageLinks;

		/**
		* @var array of internal links
		* @access protected
		*/
		protected $links;

		/**
		* @var current font family
		* @access protected
		*/
		protected $FontFamily;

		/**
		* @var current font style
		* @access protected
		*/
		protected $FontStyle;

		/**
		* @var underlining flag
		* @access protected
		*/
		protected $underline;

		/**
		* @var current font info
		* @access protected
		*/
		protected $CurrentFont;

		/**
		* @var current font size in points
		* @access protected
		*/
		protected $FontSizePt;

		/**
		* @var current font size in user unit
		* @access protected
		*/
		protected $FontSize;

		/**
		* @var commands for drawing color
		* @access protected
		*/
		protected $DrawColor;

		/**
		* @var commands for filling color
		* @access protected
		*/
		protected $FillColor;

		/**
		* @var commands for text color
		* @access protected
		*/
		protected $TextColor;

		/**
		* @var indicates whether fill and text colors are different
		* @access protected
		*/
		protected $ColorFlag;

		/**
		* @var word spacing
		* @access protected
		*/
		protected $ws;

		/**
		* @var automatic page breaking
		* @access protected
		*/
		protected $AutoPageBreak;

		/**
		* @var threshold used to trigger page breaks
		* @access protected
		*/
		protected $PageBreakTrigger;

		/**
		* @var flag set when processing footer
		* @access protected
		*/
		protected $InFooter;

		/**
		* @var zoom display mode
		* @access protected
		*/
		protected $ZoomMode;

		/**
		* @var layout display mode
		* @access protected
		*/
		protected $LayoutMode;

		/**
		* @var title
		* @access protected
		*/
		protected $title;

		/**
		* @var subject
		* @access protected
		*/
		protected $subject;

		/**
		* @var author
		* @access protected
		*/