luos/gulliver/system/class.tree.php

<?php
/**
 * class.tree.php
 *  
 * ProcessMaker Open Source Edition
 * Copyright (C) 2004 - 2008 Colosa Inc.23
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *<EFBFBD>
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * For more information, contact Colosa Inc, 2566 Le Jeune Rd., 
 * Coral Gables, FL, 33134, USA, or email info@colosa.com.
 * 
 */
  G::LoadSystem('objectTemplate');
  class Tree extends Xml_Node {
    var $template     = 'tree.html';
    var $nodeType     = 'base';
    var $nodeClass    = 'treeNode';
    var $contentClass = 'treeContent';
    var $width        = '100%';
    var $contentWidth = '360';
    var $contracted   = false;
    var $showSign     = true;
    var $isChild      = false;
    var $plus         = "<span style='position:absolute; width:16px;height:22px;cursor:pointer;'onclick='tree.expand(this.parentNode);'>&nbsp;</span>";
    var $minus        = "<span  style='position:absolute; width:16px;height:22px;cursor:pointer' onclick='tree.contract(this.parentNode);'>&nbsp;</span>";
    var $point        = "<span style='position:absolute; width:5px;height:10px;cursor:pointer;'  onclick='tree.select(this.parentNode);'>&nbsp;</span>";

    /**
     * Tree
     *
     * @param  array $xmlnode default value NULL 
     *
     * @return none
     */   
    function Tree( $xmlnode = NULL )
    {
      if (!isset($xmlnode)) 
        return;
      if (isset($xmlnode->attributes['nodeType'])) 
        $this->nodeType=$xmlnode->attributes['nodeType'];
      foreach($xmlnode as $key => $value) {
        if ($key==='children') {
          foreach( $xmlnode->children as $key => $value ) {
            $this->children[ $key ] = new Tree( $value->toTree());
          }
        } elseif ($key==='attributes') {
          foreach( $xmlnode->attributes as $key => $value ) {
            $this->{$key} = $value;
          }
        }
        else {
          $this->{$key} = $value;
        }
      }
    }
    
    /**
     * &addChild
     *
     * @param  string $name
     * @param  string $label
     * @param  array  $attributes 
     *
     * @return object(Tree) $newNode
     */   

    function &addChild( $name, $label, $attributes = array() )
    {
      $newNode = new Tree(new Xml_Node($name, 'open', $label, $attributes));
      $this->children[] =& $newNode;
      return $newNode;
    }

    /**
     * printPlus
     *
     * @return string '<span>...</span>'
     */   
    function printPlus()
    {
      $plus  = 'none';
      $minus = 'none';
      $point = 'none';
      if ($this->showSign) {
        if ((sizeof($this->children)>0) && ($this->contracted)) {
          $plus  = '';
        } elseif ((sizeof($this->children)>0) && (!$this->contracted)) {
          $minus = '';
        } else {
          $point = '';
        }
      }
      return "<span class='treePlus'  name='plus' style='display:$plus;'>{$this->plus}</span>".
             "<span class='treeMinus' name='minus' style='display:$minus'>{$this->minus}</span>".
             "<span class='treePointer' name='point' style='display:$point'>{$this->point}</span>";
    }
    
    /**
     * printLabel
     *
     * @return $this->value
     */   
    function printLabel()
    {
      return $this->value;
    }
    
    /**
     * printContent
     *
     * @return string $html
     */   
    function printContent()
    {
      $html = '';
      $row  = 0;
      foreach($this->children as $child) {
        if ($row) 
          $child->nodeClass = 'treeNodeAlternate';
        $html .= $child->render();
        $row   = ($row + 1) % 2;
      }
      return $html;
    }
    
    /**
     * render
     *
     * @return $obj->printObject( array( 'node' => &$this ) )
     */   
    function render() {
      $obj = new objectTemplate( $this->template );
      return $obj->printObject( array( 'node' => &$this ) );
    }
  }