extended mapview to give information about the current visible tile

layer,
continued work on printing

WebContent/base/osrm/OSRM.MapView.js

@@ -16,7 +16,7 @@ or see http://www.gnu.org/licenses/agpl.txt.
 */
 
 // map view/model
-// [extending Leaflet L.Map with setView/fitBounds methods that respect UI visibility] 
+// [extending Leaflet L.Map with setView/fitBounds methods that respect UI visibility, better layerControl] 
 OSRM.MapView = L.Map.extend({
 	setViewUI: function(position, zoom, no_animation) {
 		if( OSRM.GUI.visible == true ) {
@@ -50,5 +50,25 @@ OSRM.MapView = L.Map.extend({
 		var centerPoint = this._getTopLeftPoint().add(viewHalf.divideBy(2));
 		
 		return this.unproject(centerPoint, this._zoom, unbounded);
+	},
+	addLayerControl: function( layerControl ) {
+		if( this.layerControl )
+			return;
+		
+		this.layerControl = layerControl;
+		this.addControl(this.layerControl);
+	},
+	getActiveLayerId: function() {
+		var tile_server_id = 0;
+		
+		var tile_servers = OSRM.DEFAULTS.TILE_SERVERS;
+		var tile_server_name = this.layerControl.getActiveLayerName();
+		for(var i=0, size=tile_servers.length; i<size; i++)
+			if( tile_servers[tile_server_id].display_name == tile_server_name ) {
+				tile_server_id = i;
+				break;
+			}
+		
+		return tile_server_id;
 	}
 });