Subversion-Projekte lars-tiefland.php_share

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Revision Autor Zeilennr. Zeile
1 lars 1 
<?php
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// $Header: /cvsroot/html2ps/tree.navigation.inc.php,v 1.13 2007/05/06 18:49:29 Konstantin Exp $
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class TreeWalkerDepthFirst {
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  var $_callback;
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  function TreeWalkerDepthFirst($callback) {
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    $this->_callback = $callback;
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  }
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  function run(&$node) {
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    call_user_func($this->_callback, array('node' => &$node));
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    $this->walk_element($node);
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  }
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  function walk_element(&$node) {
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    if (!isset($node->content)) {
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      return;
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    };
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    for ($i = 0, $size = count($node->content); $i < $size; $i++) {
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      $child =& $node->content[$i];
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      $this->run($child);
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    };
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  }
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}
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function &traverse_dom_tree_pdf(&$root) {
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  switch ($root->node_type()) {
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  case XML_DOCUMENT_NODE:
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    $child =& $root->first_child();
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    while($child) {
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      $body =& traverse_dom_tree_pdf($child);
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      if ($body) {
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        return $body;
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      }
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      $child =& $child->next_sibling();
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    };
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    $null = null;
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    return $null;
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  case XML_ELEMENT_NODE:
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    if (strtolower($root->tagname()) == "body") {
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      return $root;
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    }
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    $child =& $root->first_child();
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    while ($child) {
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      $body =& traverse_dom_tree_pdf($child);
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      if ($body) {
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        return $body;
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      }
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      $child =& $child->next_sibling();
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    };
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    $null = null;
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    return $null;
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  default:
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    $null = null;
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    return $null;
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  }
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};
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function dump_tree(&$box, $level) {
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  print(str_repeat(" ", $level));
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  if (is_a($box, 'TextBox')) {
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    print(get_class($box).":".$box->uid.":".join('/', $box->words)."\n");
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  } else {
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    print(get_class($box).":".$box->uid."\n");
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  };
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  if (isset($box->content)) {
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    for ($i=0; $i<count($box->content); $i++) {
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      dump_tree($box->content[$i], $level+1);
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    };
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  };
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};
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?>