<?php
if (!defined('IN_c9cms')) exit();

class tree
{

    public $arr = array();
    public $icon = array('│', '├', '└');
    public $nbsp = "&nbsp;";
    public $ret = '';

    public function init($arr = array())
    {
        $this->arr = $arr;
        $this->ret = '';
        return is_array($arr);
    }

    public function get_parent($myid)
    {
        $newarr = array();
        if (!isset($this->arr[$myid])) return false;
        $pid = $this->arr[$myid]['parentid'];
        $pid = $this->arr[$pid]['parentid'];
        if (is_array($this->arr)) {
            foreach ($this->arr as $id => $a) {
                if ($a['parentid'] == $pid) $newarr[$id] = $a;
            }
        }
        return $newarr;
    }

    public function get_child($myid)
    {
        $a = $newarr = array();
        if (is_array($this->arr)) {
            foreach ($this->arr as $id => $a) {
                if ($a['parentid'] == $myid) $newarr[$id] = $a;
            }
        }
        return $newarr ? $newarr : false;
    }

    public function get_pos($myid, &$newarr)
    {
        $a = array();
        if (!isset($this->arr[$myid])) return false;
        $newarr[] = $this->arr[$myid];
        $pid = $this->arr[$myid]['parentid'];
        if (isset($this->arr[$pid])) {
            $this->get_pos($pid, $newarr);
        }
        if (is_array($newarr)) {
            krsort($newarr);
            foreach ($newarr as $v) {
                $a[$v['id']] = $v;
            }
        }
        return $a;
    }

    public function get_tree($myid, $str, $sid = 0, $adds = '', $str_group = '')
    {
        $number = 1;
        $child = $this->get_child($myid);
        if (is_array($child)) {
            $total = count($child);
            foreach ($child as $id => $value) {
                $j = $k = '';
                if ($number == $total) {
                    $j .= $this->icon[2];
                } else {
                    $j .= $this->icon[1];
                    $k = $adds ? $this->icon[0] : '';
                }
                $spacer = $adds ? $adds . $j : '';
                $selected = $id == $sid ? 'selected' : '';
                @extract($value);
                $parentid == 0 && $str_group ? eval("\$nstr = \"$str_group\";") : eval("\$nstr = \"$str\";");
                $this->ret .= $nstr;
                $nbsp = $this->nbsp;
                $this->get_tree($id, $str, $sid, $adds . $k . $nbsp, $str_group);
                $number++;
            }
        }
        return $this->ret;
    }

    public function get_tree_multi($myid, $str, $sid = 0, $adds = '')
    {
        $number = 1;
        $child = $this->get_child($myid);
        if (is_array($child)) {
            $total = count($child);
            foreach ($child as $id => $a) {
                $j = $k = '';
                if ($number == $total) {
                    $j .= $this->icon[2];
                } else {
                    $j .= $this->icon[1];
                    $k = $adds ? $this->icon[0] : '';
                }
                $spacer = $adds ? $adds . $j : '';

                $selected = $this->have($sid, $id) ? 'selected' : '';
                @extract($a);
                eval("\$nstr = \"$str\";");
                $this->ret .= $nstr;
                $this->get_tree_multi($id, $str, $sid, $adds . $k . '&nbsp;');
                $number++;
            }
        }
        return $this->ret;
    }

    public function get_tree_category($myid, $str, $str2, $sid = 0, $adds = '')
    {
        $number = 1;
        $child = $this->get_child($myid);
        if (is_array($child)) {
            $total = count($child);
            foreach ($child as $id => $a) {
                $j = $k = '';
                if ($number == $total) {
                    $j .= $this->icon[2];
                } else {
                    $j .= $this->icon[1];
                    $k = $adds ? $this->icon[0] : '';
                }
                $spacer = $adds ? $adds . $j : '';

                $selected = $this->have($sid, $id) ? 'selected' : '';
                @extract($a);
                if (empty($html_disabled)) {
                    eval("\$nstr = \"$str\";");
                } else {
                    eval("\$nstr = \"$str2\";");
                }
                $this->ret .= $nstr;
                $this->get_tree_category($id, $str, $str2, $sid, $adds . $k . '&nbsp;');
                $number++;
            }
        }
        return $this->ret;
    }

    function get_treeview($myid, $effected_id = 'example', $str = "<span class='file'>\$name</span>", $str2 = "<span class='folder'>\$name</span>", $showlevel = 0, $style = 'filetree ', $currentlevel = 1, $recursion = FALSE)
    {
        $child = $this->get_child($myid);
        if (!defined('EFFECTED_INIT')) {
            $effected = ' id="' . $effected_id . '"';
            define('EFFECTED_INIT', 1);
        } else {
            $effected = '';
        }
        $placeholder = '<ul><li><span class="placeholder"></span></li></ul>';
        if (!$recursion) $this->str .= '<ul' . $effected . '  class="' . $style . '">';
        foreach ($child as $id => $a) {

            @extract($a);
            if ($showlevel > 0 && $showlevel == $currentlevel && $this->get_child($id)) $folder = 'hasChildren'; //如设置显示层级模式@2011.07.01
            $floder_status = isset($folder) ? ' class="' . $folder . '"' : '';
            $this->str .= $recursion ? '<ul><li' . $floder_status . ' id=\'' . $id . '\'>' : '<li' . $floder_status . ' id=\'' . $id . '\'>';
            $recursion = FALSE;
            if ($this->get_child($id)) {
                eval("\$nstr = \"$str2\";");
                $this->str .= $nstr;
                if ($showlevel == 0 || ($showlevel > 0 && $showlevel > $currentlevel)) {
                    $this->get_treeview($id, $effected_id, $str, $str2, $showlevel, $style, $currentlevel + 1, TRUE);
                } elseif ($showlevel > 0 && $showlevel == $currentlevel) {
                    $this->str .= $placeholder;
                }
            } else {
                eval("\$nstr = \"$str\";");
                $this->str .= $nstr;
            }
            $this->str .= $recursion ? '</li></ul>' : '</li>';
        }
        if (!$recursion) $this->str .= '</ul>';
        return $this->str;
    }

    public function creat_sub_json($myid, $str = '')
    {
        $sub_cats = $this->get_child($myid);
        $n = 0;
        if (is_array($sub_cats)) foreach ($sub_cats as $c) {
            $data[$n]['id'] = iconv(CHARSET, 'utf-8', $c['catid']);
            if ($this->get_child($c['catid'])) {
                $data[$n]['liclass'] = 'hasChildren';
                $data[$n]['children'] = array(array('text' => '&nbsp;', 'classes' => 'placeholder'));
                $data[$n]['classes'] = 'folder';
                $data[$n]['text'] = iconv(CHARSET, 'utf-8', $c['catname']);
            } else {
                if ($str) {
                    @extract(array_iconv($c, CHARSET, 'utf-8'));
                    eval("\$data[$n]['text'] = \"$str\";");
                } else {
                    $data[$n]['text'] = iconv(CHARSET, 'utf-8', $c['catname']);
                }
            }
            $n++;
        }
        return json_encode($data);
    }

    private function have($list, $item)
    {
        return (strpos(',,' . $list . ',', ',' . $item . ','));
    }
	
}
