775 lines
22 KiB
PHP
775 lines
22 KiB
PHP
<?php
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/**
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* DOMPDF - PHP5 HTML to PDF renderer
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*
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* File: $RCSfile: cpdf_adapter.cls.php,v $
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* Created on: 2004-08-04
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*
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* Copyright (c) 2004 - Benj Carson <benjcarson@digitaljunkies.ca>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library in the file LICENSE.LGPL; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*
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* Alternatively, you may distribute this software under the terms of the
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* PHP License, version 3.0 or later. A copy of this license should have
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* been distributed with this file in the file LICENSE.PHP . If this is not
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* the case, you can obtain a copy at http://www.php.net/license/3_0.txt.
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*
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* The latest version of DOMPDF might be available at:
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* http://www.digitaljunkies.ca/dompdf
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*
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* @link http://www.digitaljunkies.ca/dompdf
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* @copyright 2004 Benj Carson
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* @author Benj Carson <benjcarson@digitaljunkies.ca>
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* @package dompdf
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* @version 0.5.1
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*/
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/* $Id: cpdf_adapter.cls.php,v 1.16 2006/07/07 21:31:03 benjcarson Exp $ */
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// FIXME: Need to sanity check inputs to this class
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require_once(DOMPDF_LIB_DIR . "/class.pdf.php");
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/**
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* PDF rendering interface
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*
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* CPDF_Adapter provides a simple stateless interface to the stateful one
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* provided by the Cpdf class.
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*
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* Unless otherwise mentioned, all dimensions are in points (1/72 in). The
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* coordinate origin is in the top left corner, and y values increase
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* downwards.
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*
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* See {@link http://www.ros.co.nz/pdf/} for more complete documentation
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* on the underlying {@link Cpdf} class.
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*
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* @package dompdf
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*/
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class CPDF_Adapter implements Canvas {
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/**
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* Dimensions of paper sizes in points
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*
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* @var array;
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*/
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static $PAPER_SIZES = array("4a0" => array(0,0,4767.87,6740.79),
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"2a0" => array(0,0,3370.39,4767.87),
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"a0" => array(0,0,2383.94,3370.39),
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"a1" => array(0,0,1683.78,2383.94),
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"a2" => array(0,0,1190.55,1683.78),
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"a3" => array(0,0,841.89,1190.55),
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"a4" => array(0,0,595.28,841.89),
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"a5" => array(0,0,419.53,595.28),
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"a6" => array(0,0,297.64,419.53),
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"a7" => array(0,0,209.76,297.64),
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"a8" => array(0,0,147.40,209.76),
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"a9" => array(0,0,104.88,147.40),
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"a10" => array(0,0,73.70,104.88),
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"b0" => array(0,0,2834.65,4008.19),
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"b1" => array(0,0,2004.09,2834.65),
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"b2" => array(0,0,1417.32,2004.09),
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"b3" => array(0,0,1000.63,1417.32),
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"b4" => array(0,0,708.66,1000.63),
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"b5" => array(0,0,498.90,708.66),
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"b6" => array(0,0,354.33,498.90),
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"b7" => array(0,0,249.45,354.33),
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"b8" => array(0,0,175.75,249.45),
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"b9" => array(0,0,124.72,175.75),
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"b10" => array(0,0,87.87,124.72),
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"c0" => array(0,0,2599.37,3676.54),
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"c1" => array(0,0,1836.85,2599.37),
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"c2" => array(0,0,1298.27,1836.85),
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"c3" => array(0,0,918.43,1298.27),
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"c4" => array(0,0,649.13,918.43),
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"c5" => array(0,0,459.21,649.13),
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"c6" => array(0,0,323.15,459.21),
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"c7" => array(0,0,229.61,323.15),
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"c8" => array(0,0,161.57,229.61),
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"c9" => array(0,0,113.39,161.57),
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"c10" => array(0,0,79.37,113.39),
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"ra0" => array(0,0,2437.80,3458.27),
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"ra1" => array(0,0,1729.13,2437.80),
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"ra2" => array(0,0,1218.90,1729.13),
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"ra3" => array(0,0,864.57,1218.90),
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"ra4" => array(0,0,609.45,864.57),
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"sra0" => array(0,0,2551.18,3628.35),
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"sra1" => array(0,0,1814.17,2551.18),
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"sra2" => array(0,0,1275.59,1814.17),
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"sra3" => array(0,0,907.09,1275.59),
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"sra4" => array(0,0,637.80,907.09),
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"letter" => array(0,0,612.00,792.00),
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"legal" => array(0,0,612.00,1008.00),
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"ledger" => array(0,0,1224.00, 792.00),
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"tabloid" => array(0,0,792.00, 1224.00),
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"executive" => array(0,0,521.86,756.00),
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"folio" => array(0,0,612.00,936.00),
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"commerical #10 envelope" => array(0,0,684,297),
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"catalog #10 1/2 envelope" => array(0,0,648,864),
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"8.5x11" => array(0,0,612.00,792.00),
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"8.5x14" => array(0,0,612.00,1008.0),
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"11x17" => array(0,0,792.00, 1224.00));
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/**
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* Instance of Cpdf class
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*
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* @var Cpdf
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*/
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private $_pdf;
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/**
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* PDF width, in points
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*
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* @var float
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*/
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private $_width;
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/**
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* PDF height, in points
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*
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* @var float;
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*/
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private $_height;
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/**
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* Current page number
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*
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* @var int
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*/
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private $_page_number;
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/**
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* Total number of pages
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*
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* @var int
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*/
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private $_page_count;
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/**
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* Text to display on every page
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*
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* @var array
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*/
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private $_page_text;
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/**
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* Array of pages for accesing after rendering is initially complete
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*
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* @var array
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*/
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private $_pages;
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/**
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* Array of temporary cached images to be deleted when processing is complete
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*
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* @var array
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*/
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private $_image_cache;
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/**
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* Class constructor
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*
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* @param mixed $paper The size of paper to use in this PDF ({@link CPDF_Adapter::$PAPER_SIZES})
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* @param string $orientation The orienation of the document (either 'landscape' or 'portrait')
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*/
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function __construct($paper = "letter", $orientation = "portrait") {
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if ( is_array($paper) )
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$size = $paper;
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else if ( isset(self::$PAPER_SIZES[mb_strtolower($paper)]) )
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$size = self::$PAPER_SIZES[$paper];
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else
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$size = self::$PAPER_SIZES["letter"];
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if ( mb_strtolower($orientation) == "landscape" ) {
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$a = $size[3];
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$size[3] = $size[2];
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$size[2] = $a;
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}
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$this->_pdf = new Cpdf($size);
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$this->_pdf->addInfo("Creator", "DOMPDF Converter");
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// Silence pedantic warnings about missing TZ settings
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if ( function_exists("date_default_timezone_get") ) {
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$tz = @date_default_timezone_get();
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date_default_timezone_set("UTC");
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$this->_pdf->addInfo("CreationDate", date("Y-m-d"));
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date_default_timezone_set($tz);
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} else {
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$this->_pdf->addInfo("CreationDate", date("Y-m-d"));
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}
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$this->_width = $size[2] - $size[0];
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$this->_height= $size[3] - $size[1];
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$this->_pdf->openHere('Fit');
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$this->_page_number = $this->_page_count = 1;
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$this->_page_text = array();
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$this->_pages = array($this->_pdf->getFirstPageId());
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$this->_image_cache = array();
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}
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/**
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* Class destructor
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*
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* Deletes all temporary image files
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*/
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function __destruct() {
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foreach ($this->_image_cache as $img) {
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unlink($img);
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}
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}
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/**
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* Returns the Cpdf instance
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*
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* @return Cpdf
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*/
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function get_cpdf() { return $this->_pdf; }
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/**
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* Opens a new 'object'
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*
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* While an object is open, all drawing actions are recored in the object,
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* as opposed to being drawn on the current page. Objects can be added
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* later to a specific page or to several pages.
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*
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* The return value is an integer ID for the new object.
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*
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* @see CPDF_Adapter::close_object()
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* @see CPDF_Adapter::add_object()
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*
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* @return int
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*/
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function open_object() {
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$ret = $this->_pdf->openObject();
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$this->_pdf->saveState();
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return $ret;
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}
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/**
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* Reopens an existing 'object'
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*
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* @see CPDF_Adapter::open_object()
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* @param int $object the ID of a previously opened object
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*/
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function reopen_object($object) {
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$this->_pdf->reopenObject($object);
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$this->_pdf->saveState();
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}
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/**
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* Closes the current 'object'
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*
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* @see CPDF_Adapter::open_object()
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*/
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function close_object() {
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$this->_pdf->restoreState();
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$this->_pdf->closeObject();
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}
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/**
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* Adds a specified 'object' to the document
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*
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* $object int specifying an object created with {@link
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* CPDF_Adapter::open_object()}. $where can be one of:
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* - 'add' add to current page only
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* - 'all' add to every page from the current one onwards
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* - 'odd' add to all odd numbered pages from now on
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* - 'even' add to all even numbered pages from now on
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* - 'next' add the object to the next page only
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* - 'nextodd' add to all odd numbered pages from the next one
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* - 'nexteven' add to all even numbered pages from the next one
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*
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* @see Cpdf::addObject()
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*
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* @param int $object
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* @param string $where
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*/
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function add_object($object, $where = 'all') {
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$this->_pdf->addObject($object, $where);
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}
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/**
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* Stops the specified 'object' from appearing in the document.
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*
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* The object will stop being displayed on the page following the current
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* one.
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*
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* @param int $object
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*/
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function stop_object($object) {
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$this->_pdf->stopObject($object);
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}
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/**
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* @access private
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*/
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function serialize_object($id) {
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// Serialize the pdf object's current state for retrieval later
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return $this->_pdf->serializeObject($id);
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}
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/**
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* @access private
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*/
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function reopen_serialized_object($obj) {
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return $this->_pdf->restoreSerializedObject($obj);
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}
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//........................................................................
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/**
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* Returns the PDF's width in points
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* @return float
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*/
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function get_width() { return $this->_width; }
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/**
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* Returns the PDF's height in points
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* @return float
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*/
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function get_height() { return $this->_height; }
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/**
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* Returns the current page number
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* @return int
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*/
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function get_page_number() { return $this->_page_number; }
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/**
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* Returns the total number of pages in the document
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* @return int
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*/
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function get_page_count() { return $this->_page_count; }
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/**
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* Sets the current page number
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*
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* @param int $num
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*/
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function set_page_number($num) { $this->_page_number = $num; }
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/**
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* Sets the page count
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*
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* @param int $count
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*/
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function set_page_count($count) { $this->_page_count = $count; }
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/**
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* Sets the stroke colour
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*
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* See {@link Style::set_colour()} for the format of the color array.
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* @param array $color
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*/
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protected function _set_stroke_color($color) {
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list($r, $g, $b) = $color;
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$this->_pdf->setStrokeColor($r, $g, $b);
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}
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/**
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* Sets the fill colour
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*
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* See {@link Style::set_colour()} for the format of the colour array.
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* @param array $color
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*/
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protected function _set_fill_color($color) {
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list($r, $g, $b) = $color;
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$this->_pdf->setColor($r, $g, $b);
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}
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/**
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* Sets line transparency
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* @see Cpdf::setLineTransparency()
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*
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* Valid blend modes are (case-sensitive):
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*
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* Normal, Multiply, Screen, Overlay, Darken, Lighten,
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* ColorDodge, ColorBurn, HardLight, SoftLight, Difference,
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* Exclusion
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*
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* @param string $mode the blending mode to use
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* @param float $opacity 0.0 fully transparent, 1.0 fully opaque
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*/
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protected function _set_line_transparency($mode, $opacity) {
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$this->_pdf->setLineTransparency($mode, $opacity);
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}
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/**
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* Sets fill transparency
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* @see Cpdf::setFillTransparency()
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*
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* Valid blend modes are (case-sensitive):
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*
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* Normal, Multiply, Screen, Overlay, Darken, Lighten,
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* ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
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* Exclusion
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*
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* @param string $mode the blending mode to use
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* @param float $opacity 0.0 fully transparent, 1.0 fully opaque
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*/
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protected function _set_fill_transparency($mode, $opacity) {
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$this->_pdf->setFillTransparency($mode, $opacity);
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}
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/**
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* Sets the line style
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*
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* @see Cpdf::setLineStyle()
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*
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* @param float width
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* @param string cap
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* @param string join
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* @param array dash
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*/
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protected function _set_line_style($width, $cap, $join, $dash) {
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$this->_pdf->setLineStyle($width, $cap, $join, $dash);
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}
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//........................................................................
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/**
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* Remaps y coords from 4th to 1st quadrant
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*
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* @param float $y
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* @return float
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*/
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protected function y($y) { return $this->_height - $y; }
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// Canvas implementation
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function line($x1, $y1, $x2, $y2, $color, $width, $style = array(),
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$blend = "Normal", $opacity = 1.0) {
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//pre_r(compact("x1", "y1", "x2", "y2", "color", "width", "style"));
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$this->_set_stroke_color($color);
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$this->_set_line_style($width, "butt", "", $style);
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$this->_set_line_transparency($blend, $opacity);
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$this->_pdf->line($x1, $this->y($y1),
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$x2, $this->y($y2));
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}
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//........................................................................
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/**
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* Convert a GIF image to a PNG image
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*
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* @return string The url of the newly converted image
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*/
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protected function _convert_gif_to_png($image_url) {
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global $_dompdf_warnings;
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if ( !function_exists("imagecreatefromgif") ) {
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$_dompdf_warnings[] = "Function imagecreatefromgif() not found. Cannot convert gif image: $image_url.";
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return DOMPDF_LIB_DIR . "/res/broken_image.png";
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}
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$old_err = set_error_handler("record_warnings");
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$im = imagecreatefromgif($image_url);
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if ( $im ) {
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imageinterlace($im, 0);
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$filename = tempnam(DOMPDF_TEMP_DIR, "dompdf_img_");
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imagepng($im, $filename);
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} else {
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$filename = DOMPDF_LIB_DIR . "/res/broken_image.png";
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}
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restore_error_handler();
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$this->_image_cache[] = $filename;
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return $filename;
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}
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function rectangle($x1, $y1, $w, $h, $color, $width, $style = array(),
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$blend = "Normal", $opacity = 1.0) {
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$this->_set_stroke_color($color);
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$this->_set_line_style($width, "square", "miter", $style);
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$this->_set_line_transparency($blend, $opacity);
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$this->_pdf->rectangle($x1, $this->y($y1) - $h, $w, $h);
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}
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//........................................................................
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|
|
|
function filled_rectangle($x1, $y1, $w, $h, $color, $blend = "Normal", $opacity = 1.0) {
|
|
|
|
$this->_set_fill_color($color);
|
|
$this->_set_line_style(1, "square", "miter", array());
|
|
$this->_set_line_transparency($blend, $opacity);
|
|
$this->_set_fill_transparency($blend, $opacity);
|
|
|
|
$this->_pdf->filledRectangle($x1, $this->y($y1) - $h, $w, $h);
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
function polygon($points, $color, $width = null, $style = array(),
|
|
$fill = false, $blend = "Normal", $opacity = 1.0) {
|
|
|
|
$this->_set_fill_color($color);
|
|
$this->_set_stroke_color($color);
|
|
|
|
$this->_set_line_transparency($blend, $opacity);
|
|
$this->_set_fill_transparency($blend, $opacity);
|
|
|
|
if ( !$fill && isset($width) )
|
|
$this->_set_line_style($width, "square", "miter", $style);
|
|
|
|
// Adjust y values
|
|
for ( $i = 1; $i < count($points); $i += 2)
|
|
$points[$i] = $this->y($points[$i]);
|
|
|
|
$this->_pdf->polygon($points, count($points) / 2, $fill);
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
function circle($x, $y, $r1, $color, $width = null, $style = null,
|
|
$fill = false, $blend = "Normal", $opacity = 1.0) {
|
|
|
|
$this->_set_fill_color($color);
|
|
$this->_set_stroke_color($color);
|
|
|
|
$this->_set_line_transparency($blend, $opacity);
|
|
$this->_set_fill_transparency($blend, $opacity);
|
|
|
|
if ( !$fill && isset($width) )
|
|
$this->_set_line_style($width, "round", "round", $style);
|
|
|
|
$this->_pdf->filledEllipse($x, $this->y($y), $r1, 0, 0, 8, 0, 360, 1, $fill);
|
|
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
function image($img_url, $img_type, $x, $y, $w, $h) {
|
|
|
|
$img_type = mb_strtolower($img_type);
|
|
|
|
switch ($img_type) {
|
|
case "jpeg":
|
|
case "jpg":
|
|
$this->_pdf->addJpegFromFile($img_url, $x, $this->y($y) - $h, $w, $h);
|
|
break;
|
|
|
|
case "png":
|
|
$this->_pdf->addPngFromFile($img_url, $x, $this->y($y) - $h, $w, $h);
|
|
break;
|
|
|
|
case "gif":
|
|
// Convert gifs to pngs
|
|
$img_url = $this->_convert_gif_to_png($img_url);
|
|
$this->_pdf->addPngFromFile($img_url, $x, $this->y($y) - $h, $w, $h);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
function text($x, $y, $text, $font, $size, $color = array(0,0,0),
|
|
$adjust = 0, $angle = 0, $blend = "Normal", $opacity = 1.0) {
|
|
|
|
list($r, $g, $b) = $color;
|
|
$this->_pdf->setColor($r, $g, $b);
|
|
|
|
$this->_set_line_transparency($blend, $opacity);
|
|
$this->_set_fill_transparency($blend, $opacity);
|
|
$font .= ".afm";
|
|
|
|
$this->_pdf->selectFont($font);
|
|
$this->_pdf->addText($x, $this->y($y) - Font_Metrics::get_font_height($font, $size), $size, utf8_decode($text), $angle, $adjust);
|
|
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
/**
|
|
* Add a named destination (similar to <a name="foo">...</a> in html)
|
|
*
|
|
* @param string $anchorname The name of the named destination
|
|
*/
|
|
function add_named_dest($anchorname) {
|
|
$this->_pdf->addDestination($anchorname,"Fit");
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
/**
|
|
* Add a link to the pdf
|
|
*
|
|
* @param string $url The url to link to
|
|
* @param float $x The x position of the link
|
|
* @param float $y The y position of the link
|
|
* @param float $width The width of the link
|
|
* @param float $height The height of the link
|
|
*/
|
|
function add_link($url, $x, $y, $width, $height) {
|
|
|
|
$y = $this->y($y) - $height;
|
|
|
|
if ( strpos($url, '#') === 0 ) {
|
|
// Local link
|
|
$name = substr($url,1);
|
|
if ( $name )
|
|
$this->_pdf->addInternalLink($name, $x, $y, $x + $width, $y + $height);
|
|
|
|
} else {
|
|
$this->_pdf->addLink(rawurldecode($url), $x, $y, $x + $width, $y + $height);
|
|
}
|
|
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
function get_text_width($text, $font, $size, $spacing = 0) {
|
|
$this->_pdf->selectFont($font);
|
|
return $this->_pdf->getTextWidth($size, utf8_decode($text), $spacing);
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
function get_font_height($font, $size) {
|
|
$this->_pdf->selectFont($font);
|
|
return $this->_pdf->getFontHeight($size);
|
|
}
|
|
|
|
/**
|
|
* Writes text at the specified x and y coordinates on every page
|
|
*
|
|
* The strings '{PAGE_NUM}' and '{PAGE_COUNT}' are automatically replaced
|
|
* with their current values.
|
|
*
|
|
* See {@link Style::munge_colour()} for the format of the colour array.
|
|
*
|
|
* @param float $x
|
|
* @param float $y
|
|
* @param string $text the text to write
|
|
* @param string $font the font file to use
|
|
* @param float $size the font size, in points
|
|
* @param array $color
|
|
* @param float $adjust word spacing adjustment
|
|
* @param float $angle angle to write the text at, measured CW starting from the x-axis
|
|
*/
|
|
function page_text($x, $y, $text, $font, $size, $color = array(0,0,0),
|
|
$adjust = 0, $angle = 0, $blend = "Normal", $opacity = 1.0) {
|
|
|
|
$this->_page_text[] = compact("x", "y", "text", "font", "size", "color", "adjust", "angle");
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
function new_page() {
|
|
$this->_page_count++;
|
|
|
|
$ret = $this->_pdf->newPage();
|
|
$this->_pages[] = $ret;
|
|
return $ret;
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
/**
|
|
* Add text to each page after rendering is complete
|
|
*/
|
|
protected function _add_page_text() {
|
|
|
|
if ( !count($this->_page_text) )
|
|
return;
|
|
|
|
$page_number = 1;
|
|
|
|
foreach ($this->_pages as $pid) {
|
|
|
|
foreach ($this->_page_text as $pt) {
|
|
extract($pt);
|
|
|
|
$text = str_replace(array("{PAGE_NUM}","{PAGE_COUNT}"),
|
|
array($page_number, $this->_page_count), $text);
|
|
|
|
$this->reopen_object($pid);
|
|
$this->text($x, $y, $text, $font, $size, $color, $adjust, $angle);
|
|
$this->close_object();
|
|
}
|
|
|
|
$page_number++;
|
|
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Streams the PDF directly to the browser
|
|
*
|
|
* @param string $filename the name of the PDF file
|
|
* @param array $options associative array, 'Attachment' => 0 or 1, 'compress' => 1 or 0
|
|
*/
|
|
function stream($filename, $options = null) {
|
|
// Add page text
|
|
$this->_add_page_text();
|
|
|
|
$options["Content-Disposition"] = $filename;
|
|
$this->_pdf->stream($options);
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
/**
|
|
* Returns the PDF as a string
|
|
*
|
|
* @return string
|
|
*/
|
|
function output($options = null) {
|
|
// Add page text
|
|
$this->_add_page_text();
|
|
|
|
if ( isset($options["compress"]) && $options["compress"] != 1 )
|
|
$debug = 1;
|
|
else
|
|
$debug = 0;
|
|
|
|
return $this->_pdf->output($debug);
|
|
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
/**
|
|
* Returns logging messages generated by the Cpdf class
|
|
*
|
|
* @return string
|
|
*/
|
|
function get_messages() { return $this->_pdf->messages; }
|
|
|
|
}
|
|
|
|
?>
|