/**************************************************
 * Custom map layers:
 * Adapted from Jef Poskanzer's Acme Mapper
 * (http://mapper.acme.com/)
 **************************************************/
	var USGS_TOPO_TILES = WMSCreateMap('Topo','Topo maps by USGS via terraserver-usa.com','Topo maps unavailable',5,17,400,'http://terraservice.net/ogcmap6.ashx?version=1.1.1&request=GetMap&styles=&srs=EPSG:4326&format=image/jpeg&bgcolor=0xCCCCCC&exceptions=INIMAGE&layers=DRG');
	var USGS_AERIAL_TILES = WMSCreateMap('Aerial','Imagery by USGS via terraserver-usa.com','USGS aerial imagery unavailable',7,18,400,'http://terraservice.net/ogcmap6.ashx?version=1.1.1&request=GetMap&styles=&srs=EPSG:4326&format=image/jpeg&bgcolor=0xCCCCCC&exceptions=INIMAGE&layers=DOQ');
	var NRCAN_TOPO_TILES = WMSCreateMap('NRCan','Maps by NRCan.gc.ca','NRCan maps unavailable',6,18,600,'http://wms.cits.rncan.gc.ca/cgi-bin/cubeserv.cgi?version=1.1.3&request=GetMap&format=image/png&bgcolor=0xFFFFFF&exceptions=application/vnd.ogc.se_inimage&srs=EPSG:4326&layers=PUB_50K:CARTES_MATRICIELLES/RASTER_MAPS');
//	var BLUEMARBLE_TILES = WMSCreateMap('BlueMarble','Map by NASA','OnEarth server unavailable',3,8,128,'http://onearth.jpl.nasa.gov/wms.cgi?request=GetMap&styles=&srs=EPSG:4326&format=image/jpeg&layers=modis');
//	var DAILY_TERRA_TILES = WMSCreateMap('"Terra"','Map by NASA','OnEarth server unavailable',3,10,256,'http://onearth.jpl.nasa.gov/wms.cgi?request=GetMap&styles=&srs=EPSG:4326&format=image/jpeg&layers=daily_terra');
//	var DAILY_AQUA_TILES = WMSCreateMap('"Aqua"','Map by NASA','OnEarth server unavailable',3,10,256,'http://onearth.jpl.nasa.gov/wms.cgi?request=GetMap&styles=&srs=EPSG:4326&format=image/jpeg&layers=daily_aqua');

function Add_Custom_Layers(map) {
	map.addMapType(USGS_TOPO_TILES);
}

function WMSCreateMap(name,copyright,errorMessage,minResolution,maxResolution,tileSize,baseUrl) {
	var tileLayer = new GTileLayer(new GCopyrightCollection(copyright),minResolution,maxResolution);
	tileLayer.baseUrl = baseUrl;
	tileLayer.tileSize = tileSize;
	tileLayer.getTileUrl = WMSGetTileUrl;
	tileLayer.getCopyright = function() { return { prefix:'',copyrightTexts:[copyright]}; };
	var tileLayers = [tileLayer];
	return new GMapType(tileLayers,G_SATELLITE_MAP.getProjection(),name,{errorMessage:errorMessage,tileSize:tileSize});
}
function WMSGetTileUrl(tile,zoom) {
	var southWestPixel = new GPoint(tile.x*this.tileSize,(tile.y+1)*this.tileSize);
	var northEastPixel = new GPoint((tile.x+1)*this.tileSize,tile.y*this.tileSize);
	var southWestCoords = G_SATELLITE_MAP.getProjection().fromPixelToLatLng(southWestPixel,zoom);
	var northEastCoords = G_SATELLITE_MAP.getProjection().fromPixelToLatLng(northEastPixel,zoom);
	var bbox = southWestCoords.lng()+','+southWestCoords.lat()+','+northEastCoords.lng()+','+northEastCoords.lat();
	return this.baseUrl+'&bbox='+bbox+'&width='+this.tileSize+'&height='+this.tileSize;
}
/**************************************************
 * End Custom map layers
 **************************************************/

/**************************************************
 * Custom map-type control:
 * more or less from Google's own documentation
 **************************************************/
/**************************************************
 *  Rg - 2007-04 to 2007-06
 *  these scripts were adapted from code in
 *  myGME - GSAK Google Maps Export
 *  by Mark Pelletier 
 *  posted on the GSAK discussion forum
 **************************************************
 * Various tweaks - all are commented in the code.
 * Rg 1.001 - set separate map type (NORMAL) for overview map
 * Rg 1.002 - put in logic to detect map type changes 
 *		from outside and reset the selector.
 * Rg 1.003 - comment out call to Add_Custom_Layers()
 *		so it must go in the user's main line.  This is so I
 *		can eventually separate the two parts of this package
 **************************************************/

maptypecontrol_style = (self.maptypecontrol_style) ? maptypecontrol_style : 'menu';
filter_map_types = (self.filter_map_types!=null) ? filter_map_types : true;

function MapTypeControl() {}
	MapTypeControl.prototype = new GControl();
	MapTypeControl.prototype.initialize = function(map) {

		//Rg - put this call in the main line
		//Add_Custom_Layers(map); 

		var map_types = [
			{  label:'Google - Map',type:'G_NORMAL_MAP',title:'Google street map',bounds:[-180,-90,180,90],excluded:[] }
			,{ label:'Google - Satellite',type:'G_SATELLITE_MAP',title:'Google satellite map',bounds:[-180,-90,180,90],excluded:[] }
			,{ label:'Google - Hybrid',type:'G_HYBRID_MAP',title:'Google "hybrid" map',bounds:[-180,-90,180,90],excluded:[] }
			,{ label:'USGS - Topo',type:'USGS_TOPO_TILES',title:'USGS topographic map',bounds:[-169,18,-66,72],excluded:[] }
			,{ label:'USGS - Aerial',type:'USGS_AERIAL_TILES',title:'USGS aerial photos (black/white)',bounds:[-152,17,-65,65],excluded:[] }
			,{ label:'Canada - Topo',type:'NRCAN_TOPO_TILES',title:'NRCan/Toporama maps with contour lines',bounds:[-141,41.7,-52,85],excluded:[-141,41.7,-86,48] }
//			,{ label:'Blue Marble',type:'BLUEMARBLE_TILES',title:'NASA "Visible Earth" image',bounds:[-180,-90,180,90],excluded:[] }
//			,{ label:'Daily "Terra"',type:'DAILY_TERRA_TILES',title:'Daily imagery from "Terra" satellite',bounds:[-180,-90,180,90],excluded:[] }
//			,{ label:'Daily "Aqua"',type:'DAILY_AQUA_TILES',title:'Daily imagery from "Aqua" satellite',bounds:[-180,-90,180,90],excluded:[] }
		];

		var center_lat = map.getCenter().lat();
		var center_lng = map.getCenter().lng();

		if (maptypecontrol_style == 'menu') {
			var map_selector = document.createElement("select");
			map_selector.id = "map_selector";
			//map_selector.style.font = "12px Verdana bold";
			//Rg - IE needs separate font style properties as below
			map_selector.style.fontFamily = "Verdana";
			map_selector.style.fontSize = "12px";
			map_selector.style.fontWeight = "bold";
			for (j=0; j<map_types.length; j++) {
				if (!filter_map_types || filter_map_types < 0 || ( (center_lng >= map_types[j]['bounds'][0] && center_lat >= map_types[j]['bounds'][1] && center_lng <= map_types[j]['bounds'][2] && center_lat <= map_types[j]['bounds'][3]) && !(center_lng >= map_types[j]['excluded'][0] && center_lat >= map_types[j]['excluded'][1] && center_lng <= map_types[j]['excluded'][2] && center_lat <= map_types[j]['excluded'][3]) ) ) {
					var opt = document.createElement("option");
					opt.value = map_types[j]['type'];
					opt.appendChild(document.createTextNode(map_types[j]['label']));
					map_selector.appendChild(opt);
					if (map.getCurrentMapType() == eval(opt.value)) { map_selector.selectedIndex = map_selector.length - 1; }
				}
			}
			GEvent.addDomListener(map_selector, "change", function(){
				map.setMapType(eval(this.value));
				//Rg - If there is an overview map, set it to Normal type
				if (typeof ovmap != "undefined") setTimeout("ovmap.setMapType(G_NORMAL_MAP);",1); 
			} );

			//Rg - add listener to set the selector to the correct map type if it changes from outside this code
			GEvent.addListener(map,"maptypechanged",function(){
				for (j=0; j<map_types.length; j++) {
					if (map.getCurrentMapType() == eval(map_types[j]['type'])) { map_selector.selectedIndex = j; }
				} 
			} );

			map.getContainer().appendChild(map_selector);
			return map_selector;
		} else {
			var map_type_container = document.createElement("div");
			for (j=0; j<map_types.length; j++) {
				if (!filter_map_types || filter_map_types < 0 || ( (center_lng >= map_types[j]['bounds'][0] && center_lat >= map_types[j]['bounds'][1] && center_lng <= map_types[j]['bounds'][2] && center_lat <= map_types[j]['bounds'][3]) && !(center_lng >= map_types[j]['excluded'][0] && center_lat >= map_types[j]['excluded'][1] && center_lng <= map_types[j]['excluded'][2] && center_lat <= map_types[j]['excluded'][3]) ) ) {
					var maplink = document.createElement("div");
					maplink.className = 'maptypelink';
					if (self.maptypecontrol && map.getCurrentMapType() == eval(map_types[j]['type'])) {
						maplink.className = 'maptypelink maptypelink_selected';
					}
					maplink.title = map_types[j]['title'];
					maplink.type = map_types[j]['type'];
					map_type_container.appendChild(maplink);
					maplink.appendChild(document.createTextNode(map_types[j]['label']));
					GEvent.addDomListener(maplink, "click", function(){
						map.setMapType(eval(this.type));
						//Rg If there is an overview map, set it to Normal type
						if (typeof ovmap != "undefined") setTimeout("ovmap.setMapType(G_NORMAL_MAP);",1);  
						if (self.maptypecontrol) {
							map.removeControl(maptypecontrol);
							map.addControl(maptypecontrol);
						}
					} );
				}
			}
			map.getContainer().appendChild(map_type_container);
			return map_type_container;
		}
	}
	MapTypeControl.prototype.getDefaultPosition = function() {
		return new GControlPosition(G_ANCHOR_TOP_RIGHT, new GSize(15,7));
}

var api_version = 2;
function GPSV_MapTypeControl() {}
//if (api_version >= 2) { GPSV_MapTypeControl.prototype = MapTypeControl.prototype; }
GPSV_MapTypeControl.prototype = MapTypeControl.prototype;
//
//////////////////////
/**************************************************
 * End Custom map-type control:
 **************************************************/