<script src="../ext4/examples/ux/GMapPanel.js"></script>
    <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=zh-CN"></script>

/**
 * @author Shea Frederick
 */
Ext.define('Ext.ux.GMapPanel', {
    extend: 'Ext.panel.Panel',
    
    alias: 'widget.gmappanel',
    
    requires: ['Ext.window.MessageBox'],
    
    initComponent : function(){
        Ext.applyIf(this,{
            plain: true,
            gmapType: 'map',
            border: false
        });
        
        this.callParent();        
    },
    
    afterFirstLayout : function(){
        var center = this.center;
        this.callParent();       
        
        if (center) {
            if (center.geoCodeAddr) {
                this.lookupCode(center.geoCodeAddr, center.marker);
            } else {
                this.createMap(center);
            }
        } else {
            Ext.Error.raise('center is required');
        }
              
    },
    
    createMap: function(center, marker) {
        var options = Ext.apply({}, this.mapOptions);
        
        options = Ext.applyIf(options, {
            zoom: 14,
            center: center,
            mapTypeId: google.maps.MapTypeId.HYBRID
        });
        this.gmap = new google.maps.Map(this.body.dom, options);
        if (marker) {
            this.addMarker(Ext.applyIf(marker, {
                position: center
            }));
        }
        
        Ext.each(this.markers, this.addMarker, this);
        this.fireEvent('mapready', this, this.gmap);
    },
    
    addMarker: function(marker) {
        marker = Ext.apply({
            map: this.gmap
        }, marker);
        
        if (!marker.position) {
            marker.position = new google.maps.LatLng(marker.lat, marker.lng);
        }
        var o =  new google.maps.Marker(marker);
        Ext.Object.each(marker.listeners, function(name, fn){
            google.maps.event.addListener(o, name, fn);    
        });
        return o;
    },
    
    lookupCode : function(addr, marker) {
        this.geocoder = new google.maps.Geocoder();
        this.geocoder.geocode({
            address: addr
        }, Ext.Function.bind(this.onLookupComplete, this, [marker], true));
    },
    
    onLookupComplete: function(data, response, marker){
        if (response != 'OK') {
            Ext.MessageBox.alert('Error', 'An error occured: "' + response + '"');
            return;
        }
        this.createMap(data[0].geometry.location, marker);
    },
    
    afterComponentLayout : function(w, h){
        this.callParent(arguments);
        this.redraw();
    },
    
    redraw: function(){
        var map = this.gmap;
        if (map) {
            google.maps.event.trigger(map, 'resize');
        }
    }
 
});

var mapOptions =
        {
            zoom: 7, //缩放级别 可以使用 0（最低缩放级别，在地图上可以看到整个世界）到 19（最高缩放级别，可以看到独立建筑物）之间的缩放级别
            center: new google.maps.LatLng(23, 114), //将地图的中心设置为指定的地理点
            mapTypeId: google.maps.MapTypeId.ROADMAP,   //ROADMAP - 默认视图 SATELLITE-显示Google地球卫星图像 HYBRID-混合显示普通视图和卫星视图 TERRAIN-地形图
            scaleControl: true,    //比例尺
            mapTypeControl: true
        };
        var mapPanel = Ext.create('Ext.ux.GMapPanel',{
            title:'Google Map',
            name:'pic',
            height:500,
            align:'center',
            width:this.mapWidth,
            mapOptions:mapOptions
        });
        var items = [
            container,mapPanel
        ];
        var formPanel = Ext.create('Ext.form.Panel',{
            layout:'form',
            buttonAlign:'center',
            bodyStyle: 'background:white; padding:10px;',
            labelAlign:'right',
            bor