d3chart.TreeMap = function( parent ) {
	this._width = 960;
	this._height = 500
	this._color = d3.scale.category20c();
	var treemap = d3.layout.treemap()
		.size([width, height])
		.sticky(true)
		.value(function(item) { return item.getValue; });
	this._items = new d3chart.ItemList();
	this._chart = new d3chart.Chart( parent, this );
};

d3chart.TreeMap.prototype = {

  addItem: function( item ) {
    this._items.add( item );
    this._chart._scheduleUpdate();
  },

  removeItem: function( item ) {
    this._items.remove( item );
    this._chart._scheduleUpdate();
  },

  destroy: function() {
    this._chart.destroy();
  },

  initialize: function() {

  },
  
  setHeight: function(height){
	this._height = height;
  }
  
  setWidth: function(width){
	this._width = witdh;
  }
  
}



rap.registerTypeHandler( "d3chart.TreeMap", {

  factory: function( properties ) {
    var parent = rap.getObject( properties.parent );
    return new d3chart.TreeMap( parent );
  },

  destructor: "destroy",

  properties: [ "width", "height"],

  events: [ "Selection" ]

} );