Wrapper class with modifications to TCPDF for Moodle usage.

diff --git a/lib/pdflib.php b/lib/pdflib.php
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+<?php
+
+///////////////////////////////////////////////////////////////////////////
+//                                                                       //
+// NOTICE OF COPYRIGHT                                                   //
+//                                                                       //
+// Moodle - Modular Object-Oriented Dynamic Learning Environment         //
+//          http://moodle.org                                            //
+//                                                                       //
+// Copyright (C) 1999-2004  Martin Dougiamas  http://dougiamas.com       //
+//                                                                       //
+// This program is free software; you can redistribute it and/or modify  //
+// it under the terms of the GNU General Public License as published by  //
+// the Free Software Foundation; either version 2 of the License, or     //
+// (at your option) any later version.                                   //
+//                                                                       //
+// This program is distributed in the hope that it will be useful,       //
+// but WITHOUT ANY WARRANTY; without even the implied warranty of        //
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
+// GNU General Public License for more details:                          //
+//                                                                       //
+//          http://www.gnu.org/copyleft/gpl.html                         //
+//                                                                       //
+///////////////////////////////////////////////////////////////////////////
+
+/**
+ * pdflib.php - Moodle PDF library
+ * 
+ * We currently use the TCPDF library by Nicola Asuni.
+ *
+ * The default location for fonts that are included with TCPDF is
+ * lib/tcpdf/fonts/. If $CFG->datadir.'/fonts/' exists, this directory
+ * will be used instead of lib/tcpdf/fonts/. If there is only one font
+ * present in $CFG->datadir.'/fonts/', the font is used as the default
+ * font.
+ * 
+ * See lib/tcpdf/fonts/README for details on how to convert fonts for use
+ * with TCPDF.
+ * 
+ * Example usage:
+ *    $pdf = new pdf;
+ *    $pdf->print_header = false;
+ *    $pdf->print_footer = false;
+ *    $pdf->AddPage();
+ *    $pdf->Write(5, 'Hello World!');
+ *    $pdf->Output();
+ * 
+ * @author Vy-Shane Sin Fat
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package moodlecore
+ */
+
+
+
+/// Includes
+require_once('tcpdf/tcpdf.php');
+
+
+
+/// Constants
+define('PDF_CUSTOM_FONT_PATH', $CFG->dataroot.'/fonts/');
+define('PDF_DEFAULT_FONT', 'FreeSerif');
+
+
+
+/**
+ * Wrapper class that extends TCPDF (lib/tcpdf/tcpdf.php).
+ * Moodle customisations are done here.
+ */
+class pdf extends TCPDF {
+        
+    /**
+     * Constructor
+     */
+    function pdf($orientation='P', $unit='mm', $format='A4', $unicode=true, $encoding='UTF-8') {
+        
+        parent::TCPDF($orientation, $unit, $format, $unicode, $encoding);
+        
+        if (is_dir(PDF_CUSTOM_FONT_PATH)) {
+            $fontfiles = $this->_getfontfiles(PDF_CUSTOM_FONT_PATH);
+            
+            if (count($fontfiles) == 1) {
+                $autofontname = substr($fontfile[0], 0, -4);
+                $this->AddFont($autofontname, '', $autofontname.'.php');
+                $this->SetFont($autofontname);
+            } else if (count($fontfiles == 0)) {
+                $this->SetFont(PDF_DEFAULT_FONT);
+            }
+        } else {
+            $this->SetFont(PDF_DEFAULT_FONT);
+        }
+    }
+    
+    
+    /**
+     * Return fonts path
+     * Overriden from class TCPDF
+     */
+    function _getfontpath() {
+        global $CFG;
+        
+        if (is_dir(PDF_CUSTOM_FONT_PATH)
+                    && count($this->_getfontfiles(PDF_CUSTOM_FONT_PATH)) > 0) {
+            $fontpath = PDF_CUSTOM_FONT_PATH;
+        } else {
+            $fontpath = $CFG->dirroot.'/lib/tcpdf/fonts/';
+        }
+        return $fontpath;
+    }
+    
+    
+    /**
+     * Get the .php files for the fonts
+     */
+    function _getfontfiles($fontdir) {
+        $dirlist = get_directory_list($fontdir);
+        $fontfiles = array();
+        
+        foreach ($dirlist as $file) {
+            if (substr($file, -4) == '.php') {
+                array_push($fontfiles, $file);
+            }
+        }
+        return $fontfiles;
+    }
+    
+    
+} // End class pdf
+
+
+?>
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