tcpdf.php

一个用PHP编写的

		protected $author;

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

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

		/**
		* @var alias for total number of pages
		* @access protected
		*/
		protected $AliasNbPages;

		/**
		* @var right-bottom corner X coordinate of inserted image
		* @since 2002-07-31
		* @author Nicola Asuni
		* @access protected
		*/
		protected $img_rb_x;

		/**
		* @var right-bottom corner Y coordinate of inserted image
		* @since 2002-07-31
		* @author Nicola Asuni
		* @access protected
		*/
		protected $img_rb_y;

		/**
		* @var image scale factor
		* @since 2004-06-14
		* @author Nicola Asuni
		* @access protected
		*/
		protected $imgscale = 1;

		/**
		* @var boolean set to true when the input text is unicode (require unicode fonts)
		* @since 2005-01-02
		* @author Nicola Asuni
		* @access protected
		*/
		protected $isunicode = false;

		/**
		* @var PDF version
		* @since 1.5.3
		* @access protected
		*/
		protected $PDFVersion = "1.5";
		
		
		// ----------------------
		
		/**
		 * @var Minimum distance between header and top page margin.
		 * @access private
		 */
		private $header_margin;
		
		/**
		 * @var Minimum distance between footer and bottom page margin.
		 * @access private
		 */
		private $footer_margin;
		
		/**
		 * @var original left margin value
		 * @access private
		 * @since 1.53.0.TC013
		 */
		private $original_lMargin;
		
		/**
		 * @var original right margin value
		 * @access private
		 * @since 1.53.0.TC013
		 */
		private $original_rMargin;
			
		/**
		 * @var Header font.
		 * @access private
		 */
		private $header_font;
		
		/**
		 * @var Footer font.
		 * @access private
		 */
		private $footer_font;
		
		/**
		 * @var Language templates.
		 * @access private
		 */
		private $l;
		
		/**
		 * @var Barcode to print on page footer (only if set).
		 * @access private
		 */
		private $barcode = false;
		
		/**
		 * @var If true prints header
		 * @access private
		 */
		private $print_header = true;
		
		/**
		 * @var If true prints footer.
		 * @access private
		 */
		private $print_footer = true;
		
		/**
		 * @var Header width (0 = full page width).
		 * @access private
		 */
		private $header_width = 0;
		
		/**
		 * @var Header image logo.
		 * @access private
		 */
		private $header_logo = "";
		
		/**
		 * @var Header image logo width in mm.
		 * @access private
		 */
		private $header_logo_width = 30;
		
		/**
		 * @var String to print as title on document header.
		 * @access private
		 */
		private $header_title = "";
		
		/**
		 * @var String to print on document header.
		 * @access private
		 */
		private $header_string = "";
		
		/**
		 * @var Default number of columns for html table.
		 * @access private
		 */
		private $default_table_columns = 4;
		
		
		// variables for html parser
		
		/**
		 * @var HTML PARSER: store current link.
		 * @access private
		 */
		private $HREF;
		
		/**
		 * @var HTML PARSER: store font list.
		 * @access private
		 */
		private $fontList;
		
		/**
		 * @var HTML PARSER: true when font attribute is set.
		 * @access private
		 */
		private $issetfont;
		
		/**
		 * @var HTML PARSER: true when color attribute is set.
		 * @access private
		 */
		private $issetcolor;
		
		/**
		 * @var HTML PARSER: true in case of ordered list (OL), false otherwise.
		 * @access private
		 */
		private $listordered = false;
		
		/**
		 * @var HTML PARSER: count list items.
		 * @access private
		 */
		private $listcount = 0;
		
		/**
		 * @var HTML PARSER: size of table border.
		 * @access private
		 */
		private $tableborder = 0;
		
		/**
		 * @var HTML PARSER: true at the beginning of table.
		 * @access private
		 */
		private $tdbegin = false;
		
		/**
		 * @var HTML PARSER: table width.
		 * @access private
		 */
		private $tdwidth = 0;
		
		/**
		 * @var HTML PARSER: table height.
		 * @access private
		 */
		private $tdheight = 0;
		
		/**
		 * @var HTML PARSER: table align.
		 * @access private
		 */
		private $tdalign = "L";
		
		/**
		 * @var HTML PARSER: table background color.
		 * @access private
		 */
		private $tdbgcolor = false;
		
		/**
		 * @var Store temporary font size in points.
		 * @access private
		 */
		private $tempfontsize = 10;
		
		/**
		 * @var Bold font style status.
		 * @access private
		 */
		private $b;
		
		/**
		 * @var Underlined font style status.
		 * @access private
		 */
		private $u;
		
		/**
		 * @var Italic font style status.
		 * @access private
		 */
		private $i;
		
		/**
		 * @var spacer for LI tags.
		 * @access private
		 */
		private $lispacer = "";
		
		/**
		 * @var default encoding
		 * @access private
		 * @since 1.53.0.TC010
		 */
		private $encoding = "UTF-8";
		
		/**
		 * @var PHP internal encoding
		 * @access private
		 * @since 1.53.0.TC016
		 */
		private $internal_encoding;
		
		/**
		 * @var store previous fill color as RGB array
		 * @access private
		 * @since 1.53.0.TC017
		 */
		private $prevFillColor = array(255,255,255);
		
		/**
		 * @var store previous text color as RGB array
		 * @access private
		 * @since 1.53.0.TC017
		 */
		private $prevTextColor = array(0,0,0);
		
		/**
		 * @var store previous font family
		 * @access private
		 * @since 1.53.0.TC017
		 */
		private $prevFontFamily;
		
		/**
		 * @var store previous font style
		 * @access private
		 * @since 1.53.0.TC017
		 */
		private $prevFontStyle;
		
		/**
		 * @var indicates if the document language is Right-To-Left
		 * @access private
		 * @since 2.0.000
		 */
		private $rtl = false;
		
		/**
		 * @var used to force RTL or LTR string inversion
		 * @access private
		 * @since 2.0.000
		 */
		private $tmprtl = false;
		
		// --- Variables used for document encryption:
		
		/**
		 * Indicates whether document is protected
		 * @access private
		 * @since 2.0.000 (2008-01-02)
		 */
		private $encrypted;
		
		/**
		 * U entry in pdf document
		 * @access private
		 * @since 2.0.000 (2008-01-02)
		 */
		private $Uvalue;
		
		/**
		 * O entry in pdf document
		 * @access private
		 * @since 2.0.000 (2008-01-02)
		 */
		private $Ovalue;
		
		/**
		 * P entry in pdf document
		 * @access private
		 * @since 2.0.000 (2008-01-02)
		 */
		private $Pvalue;
		
		/**
		 * encryption object id
		 * @access private
		 * @since 2.0.000 (2008-01-02)
		 */
		private $enc_obj_id;
		
		/**
		 * last RC4 key encrypted (cached for optimisation)
		 * @access private
		 * @since 2.0.000 (2008-01-02)
		 */
		private $last_rc4_key;
		
		/**
		 * last RC4 computed key
		 * @access private
		 * @since 2.0.000 (2008-01-02)
		 */
		private $last_rc4_key_c;
		
		// --- bookmark ---
		
		/**
		 * Outlines for bookmark
		 * @access private
		 * @since 2.1.002 (2008-02-12)
		 */
		private $outlines = array();
		
		/**
		 * Outline root for bookmark
		 * @access private
		 * @since 2.1.002 (2008-02-12)
		 */
		private $OutlineRoot;
		
		
		// --- javascript and form ---
		
		/**
		 * javascript code
		 * @access private
		 * @since 2.1.002 (2008-02-12)
		 */
		private $javascript = "";
		
		/**
		 * javascript counter
		 * @access private
		 * @since 2.1.002 (2008-02-12)
		 */
    private $n_js;
    
		//------------------------------------------------------------
		// Public methods
		//------------------------------------------------------------

		/**
		 * This is the class constructor. 
		 * It allows to set up the page format, the orientation and 
		 * the measure unit used in all the methods (except for the font sizes).
		 * @since 1.0
		 * @param string $orientation page orientation. Possible values are (case insensitive):<ul><li>P or Portrait (default)</li><li>L or Landscape</li></ul>
		 * @param string $unit User measure unit. Possible values are:<ul><li>pt: point</li><li>mm: millimeter (default)</li><li>cm: centimeter</li><li>in: inch</li></ul><br />A point equals 1/72 of inch, that is to say about 0.35 mm (an inch being 2.54 cm). This is a very common unit in typography; font sizes are expressed in that unit.
		 * @param mixed $format The format used for pages. It can be either one of the following values (case insensitive) or a custom format in the form of a two-element array containing the width and the height (expressed in the unit given by unit).<ul><li>4A0</li><li>2A0</li><li>A0</li><li>A1</li><li>A2</li><li>A3</li><li>A4 (default)</li><li>A5</li><li>A6</li><li>A7</li><li>A8</li><li>A9</li><li>A10</li><li>B0</li><li>B1</li><li>B2</li><li>B3</li><li>B4</li><li>B5</li><li>B6</li><li>B7</li><li>B8</li><li>B9</li><li>B10</li><li>C0</li><li>C1</li><li>C2</li><li>C3</li><li>C4</li><li>C5</li><li>C6</li><li>C7</li><li>C8</li><li>C9</li><li>C10</li><li>RA0</li><li>RA1</li><li>RA2</li><li>RA3</li><li>RA4</li><li>SRA0</li><li>SRA1</li><li>SRA2</li><li>SRA3</li><li>SRA4</li><li>LETTER</li><li>LEGAL</li><li>EXECUTIVE</li><li>FOLIO</li></ul>
		 * @param boolean $unicode TRUE means that the input text is unicode (default = true)
		 * @param String $encoding charset encoding; default is UTF-8
		 */
		public function __construct($orientation='P', $unit='mm', $format='A4', $unicode=true, $encoding="UTF-8") {
			
			/* Set internal character encoding to ASCII */
			if (function_exists("mb_internal_encoding") AND mb_internal_encoding()) {
				$this->internal_encoding = mb_internal_encoding();
				mb_internal_encoding("ASCII");
			}
			
			// set language direction
			$this->rtl = $this->l['a_meta_dir']=='rtl' ? true : false;
			$this->tmprtl = false;
			
			//Some checks
			$this->_dochecks();
			
			//Initialization of properties
			$this->isunicode=$unicode;
			$this->page=0;
			$this->n=2;