<?php

/**
 * display LADSPA plugins
 * 
 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author     Robin Gareus <robin@gareus.org>
 */

if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/');
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'syntax.php');

class syntax_plugin_ladspa extends DokuWiki_Syntax_Plugin {
  /**
   * return some info
   */
  function getInfo(){
    return array(
      'author' => 'Robin Gareus',
      'email'  => 'robin@gareus.org',
      'date'   => '2009-01-01',
      'name'   => 'ladspa',
      'desc'   => 'ladspa info.',
      'url'    => 'http://mir.dnsalias.com/wiki/dokuladspa',
    );
  }

  function getType(){ return 'substition'; }
  function getPType(){ return 'block'; }
  function getSort(){ return 150; }

  /**
   * Connect pattern to lexer
   */
  function connectTo($mode) {
    $this->Lexer->addSpecialPattern('\{\{ladspa>[^}]*\}\}',$mode,'plugin_ladspa');
    $this->Lexer->addSpecialPattern('\{\{ladspapreset>[^}]*\}\}',$mode,'plugin_ladspa');
    ##$this->Lexer->addSpecialPattern('\{\{ladspa>.+\}\}',$mode,'plugin_ladspa');
  }

  /**
   * Handle the match
   */
  function handle($match, $state, $pos, &$handler){
    $data = array();

    if (!strncasecmp($match,"{{ladspapreset>",15)) {
      $match = substr($match,15,-2); 
      $presets=array();
      foreach (split("\n", $match) as $preset) {
        list($title, $jchain) = split('\[', trim($preset),2);
        if (empty($title) || empty($jchain)) continue;

        foreach (split(";", $jchain) as $jdata) {
          list($id, $vals) = split(':', $jdata,2);
          $vals = preg_replace('/^\[+/','', $vals);
          $vals = preg_replace('/\]+$/','', $vals);
          $parsed=array();
          foreach (split(',',$vals) as $v) $parsed[]=intval($v);
          $json='['.join(',',$parsed).']';
          if (count($parsed)>0 && intval($id) >0)
            $presets[] = array ( 'id'    => intval($id),
                                'json'  => $json);
        }
        $pchain[] = array ('title' => trim($title),
                           'presets'  => $presets);
      }
      $data['presets'] = $pchain;
      $data['mode'] = 'preset';
    } else
    if (!strncasecmp($match,"{{ladspa>",9)) {
      $match = substr($match,9,-2); 
      $data['lp'] = $match;
    }
    return $data;
  }

  /**
   * Create output
   */
  function render($mode, &$renderer, $data) {
    if (!$helper=plugin_load('helper', 'ladspa')) {
      msg('can not load ladspa helper.', -1);
      return false;
    }

    if($mode == 'xhtml'){
      if ($data['mode']=='preset' && count($data['presets'])>0 ){
        $renderer->doc .= '<div class="ladspapresets">';
        $renderer->doc .= 'LADSPA Preset'.(count($data['presets'])!=1?'s':'').':';
        $first=true;
        foreach ($data['presets'] as $pchain) {
          if ($first) $first=false;
          else $renderer->doc .= ',&nbsp;';
          $renderer->doc      .= '<span class="preset" onclick="';
          foreach ($pchain['presets'] as $preset) {
            $renderer->doc    .= 'loadPreset('.$preset['id'].',';
            $renderer->doc    .= $preset['json'].');';
          }
          $renderer->doc      .= '">';
          $renderer->doc      .= htmlentities($pchain['title']);
          $renderer->doc      .= '</span>';
        }
        #$renderer->doc .= print_r($data['presets']);
        $renderer->doc .= '</div>';
        return true;
      }

      $plugins = $helper->parse_ap($data['lp']."\n");
      #$renderer->doc .= 'LADSPA: '.strlen($data['lp']);
      $renderer->doc .= '<div class="ladspa">';
      usort($plugins, array($helper,"cmp_label"));
      $renderer->doc .= $helper->render_list($plugins);
      $renderer->doc .= '</div>';
      $renderer->doc .= '<div class="ladspa" style="float:left;">';
      usort($plugins,array($helper,'cmp_control'));
      foreach ($plugins as $p) 
        $renderer->doc .= $helper->render_ladspa($p);
      $renderer->doc .= $helper->render_legend();
      $renderer->doc .= '</div>';
      return true;
    }
    return true;
  }
}
//Setup VIM: ex: et sw=2 ts=2 enc=utf-8 :