xref: /plugin/dw2pdf/renderer.php (revision 47b0d67b42d82b1849df38c6f3e9c8040b818c86) 
1<?php
2/**
3 * DokuWiki Plugin dw2pdf (Renderer Component)
4 *
5 * @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html
6 * @author  Andreas Gohr <gohr@cosmocode.de>
7 */
8
9// must be run within Dokuwiki
10if (!defined('DOKU_INC')) die();
11
12if (!defined('DOKU_LF')) define('DOKU_LF', "\n");
13if (!defined('DOKU_TAB')) define('DOKU_TAB', "\t");
14require_once DOKU_INC.'inc/parser/xhtml.php';
15
16class renderer_plugin_dw2pdf extends Doku_Renderer_xhtml {
17
18    private $lastheadlevel = 0;
19
20    /**
21     * Make available as XHTML replacement renderer
22     */
23    public function canRender($format){
24        if($format == 'xhtml') return true;
25        return false;
26    }
27
28    /**
29     * Simplified header printing with PDF bookmarks
30     */
31    function header($text, $level, $pos) {
32        if(!$text) return; //skip empty headlines
33
34        // add PDF bookmark
35        $bmlevel = $this->getConf('maxbookmarks');
36        if($bmlevel && $bmlevel >= $level){
37            // PDF readers choke on invalid nested levels
38            $step = $level - $this->lastheadlevel;
39            if($step > 1) $level = $this->lastheadlevel;
40            $this->lastheadlevel = $level;
41
42            $this->doc .= '<bookmark content="'.$this->_xmlEntities($text).'" level="'.($level-1).'" />';
43        }
44
45        // print header
46        $this->doc .= DOKU_LF."<h$level>";
47        $this->doc .= $this->_xmlEntities($text);
48        $this->doc .= "</h$level>".DOKU_LF;
49    }
50
51    /**
52     * Wrap centered media in a div to center it
53     */
54    function _media ($src, $title=NULL, $align=NULL, $width=NULL,
55                      $height=NULL, $cache=NULL, $render = true) {
56
57        $out = '';
58        if($align == 'center'){
59            $out .= '<div align="center" style="text-align: center">';
60        }
61
62        $out .= parent::_media ($src, $title, $align, $width, $height, $cache, $render);
63
64        if($align == 'center'){
65            $out .= '</div>';
66        }
67
68        return $out;
69    }
70
71    /**
72     * hover info makes no sense in PDFs, so drop acronyms
73     */
74    function acronym($acronym) {
75        $this->doc .= $this->_xmlEntities($acronym);
76    }
77
78
79    /**
80     * reformat links if needed
81     */
82
83    function _formatLink($link){
84        // prefix interwiki links with interwiki icon
85        if($link['name'][0] != '<' && preg_match('/\binterwiki iw_(.\w+)\b/',$link['class'],$m)){
86            if(file_exists(DOKU_INC.'lib/images/interwiki/'.$m[1].'.png')){
87                $img = DOKU_BASE.'lib/images/interwiki/'.$m[1].'.png';
88            }elseif(file_exists(DOKU_INC.'lib/images/interwiki/'.$m[1].'.gif')){
89                $img = DOKU_BASE.'lib/images/interwiki/'.$m[1].'.gif';
90            }else{
91                $img = DOKU_BASE.'lib/images/interwiki.png';
92            }
93
94            $link['name'] = '<img src="'.$img.'" width="16" height="16" style="vertical-align: center" class="'.$link['class'].'" />'.$link['name'];
95        }
96        return parent::_formatLink($link);
97    }
98
99    /**
100     * no obfuscation for email addresses
101     */
102    function emaillink($address, $name = NULL) {
103        global $conf;
104        $old = $conf['mailguard'];
105        $conf['mailguard'] = 'none';
106        parent::emaillink($address, $name);
107        $conf['mailguard'] = $old;
108    }
109
110}
111
112