/**
* @author 温杨彪 2015-9-12
**/
define([
  "dojo/_base/declare", 
  "controls/toolbar/tools/NavBaseTool",
  "esri/toolbars/navigation"
], function(
  declare, 
  NavBaseTool,
  Navigation
) {
  var RL = declare([NavBaseTool], {
    constructor: function(args) {
    	this._normalIconClass="tool-zoomOut-normal";
    	this._overIconClass="tool-zoomOut-over";
    	this._selectedIconClass="tool-zoomOut-select";
    	this._disableClass="";
    	this._navType=Navigation.ZOOM_OUT;
    	this.tooltip="拉框缩小";
    }
  });
  return RL;
});