/**
* Render the sub-tree for this node.
* @param TREE_NODE $node
* @param boolean $is_last Is this a terminal node in this list?
* @param TREE_NODE[] $nodes
* @param boolean $sibling_has_children
* @access private
*/
public function iterate_node($node, $is_last, $nodes, $sibling_has_children)
{
$this->_depth += 1;
if ($node) {
$has_children = !empty($nodes);
$this->start_node($node, $is_last, $has_children, $sibling_has_children);
$icon_url = $this->node_info->get_icon_url($node);
$caption = $this->node_info->get_caption($node);
if (isset($this->decorator)) {
$this->decorator->draw_pre_toggle($node, $caption, $icon_url);
}
if (count($this->_stack)) {
foreach ($this->_stack as $s) {
if ($s) {
$this->draw_icon(Tree_line, $node);
} else {
$this->draw_icon(Tree_blank, $node);
}
}
}
if ($this->_depth > $this->_min_depth_for_icons) {
if ($is_last) {
if ($has_children) {
$this->draw_icon(Tree_ell_plus, $node);
} else {
$this->draw_icon(Tree_ell, $node);
}
array_push($this->_stack, 0);
} else {
if ($has_children) {
$this->draw_icon(Tree_tee_plus, $node);
} else {
$this->draw_icon(Tree_tee, $node);
}
array_push($this->_stack, 1);
}
}
if (isset($this->decorator)) {
$this->decorator->draw_post_toggle($node, $caption, $icon_url);
} else {
echo $this->context->get_icon_with_text($icon_url, Sixteen_px, $caption);
}
if ($has_children) {
$this->pre_draw_children($node);
$this->iterate_nodes($nodes);
$this->post_draw_children($node);
}
$this->finish_node($node, $is_last, $has_children);
array_pop($this->_stack);
}
$this->_depth -= 1;
}
