lib/pdflib.php

   1 <?php  // $Id$
   2
   3 ///////////////////////////////////////////////////////////////////////////
   4 //                                                                       //
   5 // NOTICE OF COPYRIGHT                                                   //
   6 //                                                                       //
   7 // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   8 //          http://moodle.org                                            //
   9 //                                                                       //
  10 // Copyright (C) 1999 onwards Martin Dougiamas  http://moodle.com          //
  11 //                                                                       //
  12 // This program is free software; you can redistribute it and/or modify  //
  13 // it under the terms of the GNU General Public License as published by  //
  14 // the Free Software Foundation; either version 2 of the License, or     //
  15 // (at your option) any later version.                                   //
  16 //                                                                       //
  17 // This program is distributed in the hope that it will be useful,       //
  18 // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  20 // GNU General Public License for more details:                          //
  21 //                                                                       //
  22 //          http://www.gnu.org/copyleft/gpl.html                         //
  23 //                                                                       //
  24 ///////////////////////////////////////////////////////////////////////////
  25
  26 /**
  27  * pdflib.php - Moodle PDF library
  28  *
  29  * We currently use the TCPDF library by Nicola Asuni.
  30  *
  31  * The default location for fonts that are included with TCPDF is
  32  * lib/tcpdf/fonts/. If $CFG->datadir.'/fonts/' exists, this directory
  33  * will be used instead of lib/tcpdf/fonts/. If there is only one font
  34  * present in $CFG->datadir.'/fonts/', the font is used as the default
  35  * font.
  36  *
  37  * See lib/tcpdf/fonts/README for details on how to convert fonts for use
  38  * with TCPDF.
  39  *
  40  * Example usage:
  41  *    $doc = new pdf;
  42  *    $doc->print_header = false;
  43  *    $doc->print_footer = false;
  44  *    $doc->AddPage();
  45  *    $doc->Write(5, 'Hello World!');
  46  *    $doc->Output();
  47  *
  48  * @author Vy-Shane Sin Fat
  49  * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
  50  * @package moodlecore
  51  */
  52
  53
  54
  55 /// Includes
  56 require_once('tcpdf/tcpdf.php');
  57
  58
  59
  60 /// Constants
  61 define('PDF_CUSTOM_FONT_PATH', $CFG->dataroot.'/fonts/');
  62 define('PDF_DEFAULT_FONT', 'FreeSerif');
  63
  64
  65
  66 /**
  67  * Wrapper class that extends TCPDF (lib/tcpdf/tcpdf.php).
  68  * Moodle customisations are done here.
  69  */
  70 class pdf extends TCPDF {
  71
  72     /**
  73      * Constructor
  74      */
  75     function pdf($orientation='P', $unit='mm', $format='A4', $unicode=true, $encoding='UTF-8') {
  76
  77         parent::TCPDF($orientation, $unit, $format, $unicode, $encoding);
  78
  79         if (is_dir(PDF_CUSTOM_FONT_PATH)) {
  80             $fontfiles = $this->_getfontfiles(PDF_CUSTOM_FONT_PATH);
  81
  82             if (count($fontfiles) == 1) {
  83                 $autofontname = substr($fontfile[0], 0, -4);
  84                 $this->AddFont($autofontname, '', $autofontname.'.php');
  85                 $this->SetFont($autofontname);
  86             } else if (count($fontfiles == 0)) {
  87                 $this->SetFont(PDF_DEFAULT_FONT);
  88             }
  89         } else {
  90             $this->SetFont(PDF_DEFAULT_FONT);
  91         }
  92     }
  93
  94
  95     /**
  96      * Fake constructor to keep PHP5 happy.
  97      */
  98     function __construct($orientation='P', $unit='mm', $format='A4', $unicode=true, $encoding='UTF-8') {
  99         $this->pdf($orientation, $unit, $format, $unicode, $encoding);
 100     }
 101
 102
 103     /**
 104      * Return fonts path
 105      * Overriding TCPDF::_getfontpath()
 106      */
 107     function _getfontpath() {
 108         global $CFG;
 109
 110         if (is_dir(PDF_CUSTOM_FONT_PATH)
 111                     && count($this->_getfontfiles(PDF_CUSTOM_FONT_PATH)) > 0) {
 112             $fontpath = PDF_CUSTOM_FONT_PATH;
 113         } else {
 114             $fontpath = $CFG->dirroot.'/lib/tcpdf/fonts/';
 115         }
 116         return $fontpath;
 117     }
 118
 119
 120     /**
 121      * Get the .php files for the fonts
 122      */
 123     function _getfontfiles($fontdir) {
 124         $dirlist = get_directory_list($fontdir);
 125         $fontfiles = array();
 126
 127         foreach ($dirlist as $file) {
 128             if (substr($file, -4) == '.php') {
 129                 array_push($fontfiles, $file);
 130             }
 131         }
 132         return $fontfiles;
 133     }
 134
 135
 136 } // End class pdf
 137
 138
 139 ?>