/**
 * 线测量工具
 * @author 温杨彪 2015-9-13
 **/
define([
	"dojo/_base/declare",
	"controls/toolbar/tools/DrawBaseTool",
	"esri/toolbars/draw",
	"dojo/dom-style",
	"dijit/TooltipDialog",
	"dijit/popup",
	"esri/geometry/geometryEngine",
	"dojo/dom",
	"base/utils/RendererUtil",
	"esri/graphic",
	"esri/geometry/geodesicUtils",
	"esri/units"
], function(
	declare,
	DrawBaseTool,
	Draw,
	domStyle,
	TooltipDialog,
	popup,
	geometryEngine,
	dom,
	RendererUtil,
	Graphic,
	geodesicUtils,
	Units
) {
	var RL = declare([DrawBaseTool], {
		_lineresulttooltip: null,
		graphic: null,
		_symbol: null,
		constructor: function(args) {
			this._normalIconClass = "tool-measureline-normal";
			this._overIconClass = "tool-measureline-over";
			this._selectedIconClass = "tool-measureline-select";
			this._drawType = Draw.POLYLINE;
			this.tooltip = "量距离";
			this._symbol = RendererUtil.createSymbol({
				type: "SimpleLineSymbol",
				width: 2,
				color: "#FD8044"
			});
		},
		postCreate: function() {
			this.inherited(arguments);
			this._isDrawOnece = false;
			this._lineresulttooltip = new TooltipDialog({
				id: '_lineresulttooltip',
				content: "<span id='measurelineresultspan'>测量结果：</span>"
			});
		},
		onDrawEnd: function(geom) {
			this.inherited(arguments);
			geom.spatialReference.wkid = 4326;
			var results = geodesicUtils.geodesicLengths([geom], Units.METERS);
			var result = results[0];
			if(result > 1000) {
				dom.byId("measurelineresultspan").innerHTML = "测量结果：" + (result / 1000).toFixed(3) + "公里";
			} else {
				dom.byId("measurelineresultspan").innerHTML = "测量结果：" + result.toFixed(0) + "米";
			}
			if(this.graphic != null) {
				this.graphic.setGeometry(geom);
			} else {
				this.graphic = new Graphic(geom, this._symbol);
				this.map.graphics.add(this.graphic);
			}
		},
		activate: function() {
			this.inherited(arguments);
			dijit.Tooltip.defaultPosition = ["below"];
			popup.open({
				popup: this._lineresulttooltip,
				around: this.domNode
			});
			dom.byId("measurelineresultspan").innerHTML = "测量结果：";
		},
		deactivate: function() {
			this.inherited(arguments);
			popup.close(this._lineresulttooltip);
			this.map.graphics.remove(this.graphic);
			this.graphic = null;
		},
	});
	return RL;
});