/**
* Copyright (C) 2011 Brian Ferris <bdferris@onebusaway.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onebusaway.webapp.gwt.position_map;
import org.onebusaway.geospatial.model.CoordinateBounds;
import org.onebusaway.geospatial.model.CoordinatePoint;
import org.onebusaway.transit_data.model.ListBean;
import org.onebusaway.transit_data.model.RouteBean;
import org.onebusaway.transit_data.model.trips.TripBean;
import org.onebusaway.transit_data.model.trips.TripDetailsBean;
import org.onebusaway.transit_data.model.trips.TripStatusBean;
import org.onebusaway.transit_data.model.trips.TripsForBoundsQueryBean;
import org.onebusaway.webapp.gwt.common.MapOverlayManager;
import org.onebusaway.webapp.gwt.common.PageException;
import org.onebusaway.webapp.gwt.common.context.Context;
import org.onebusaway.webapp.gwt.common.context.ContextManager;
import org.onebusaway.webapp.gwt.common.widgets.DivWidget;
import org.onebusaway.webapp.gwt.where_library.pages.WhereCommonPage;
import org.onebusaway.webapp.gwt.where_library.rpc.WebappServiceAsync;
import com.google.gwt.maps.client.InfoWindow;
import com.google.gwt.maps.client.InfoWindowContent;
import com.google.gwt.maps.client.MapWidget;
import com.google.gwt.maps.client.control.LargeMapControl;
import com.google.gwt.maps.client.control.MapTypeControl;
import com.google.gwt.maps.client.control.ScaleControl;
import com.google.gwt.maps.client.event.MapMoveEndHandler;
import com.google.gwt.maps.client.event.MarkerClickHandler;
import com.google.gwt.maps.client.geom.LatLng;
import com.google.gwt.maps.client.geom.LatLngBounds;
import com.google.gwt.maps.client.overlay.Marker;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Widget;
public class IndexPage extends WhereCommonPage {
private static PositionMapCssResource _css = PositionMapResources.INSTANCE.getCSS();
private static LatLng _center = LatLng.newInstance(47.601533, -122.32933);
private static int _zoom = 11;
private MapWidget _map;
private MapOverlayManager _overlayManager;
private TripPositionHandler _handler = new TripPositionHandler();
public IndexPage(ContextManager contextManager) {
}
public Widget create(final Context context) throws PageException {
_map = new MapWidget(_center, _zoom);
_map.addStyleName(_css.map());
_map.addControl(new LargeMapControl());
_map.addControl(new MapTypeControl());
_map.addControl(new ScaleControl());
_map.setScrollWheelZoomEnabled(true);
_map.addMapMoveEndHandler(new OurMapMoveHandler());
_overlayManager = new MapOverlayManager(_map);
return _map;
}
@Override
public Widget update(Context context) throws PageException {
return null;
}
private void refreshView() {
_overlayManager.clear();
if (_map.getZoomLevel() < 16)
return;
LatLngBounds llBounds = _map.getBounds();
LatLng a = llBounds.getNorthEast();
LatLng b = llBounds.getSouthWest();
CoordinateBounds bounds = new CoordinateBounds(a.getLatitude(),
a.getLongitude(), b.getLatitude(), b.getLongitude());
TripsForBoundsQueryBean query = new TripsForBoundsQueryBean();
query.setBounds(bounds);
query.setTime(System.currentTimeMillis());
query.getInclusion().setIncludeTripBean(true);
WebappServiceAsync service = WebappServiceAsync.SERVICE;
service.getTripsForBounds(query, _handler);
}
private class OurMapMoveHandler implements MapMoveEndHandler {
@Override
public void onMoveEnd(MapMoveEndEvent event) {
refreshView();
}
}
private class TripPositionHandler implements
AsyncCallback<ListBean<TripDetailsBean>> {
@Override
public void onSuccess(ListBean<TripDetailsBean> result) {
for (final TripDetailsBean bean : result.getList()) {
TripStatusBean status = bean.getStatus();
CoordinatePoint position = status.getLocation();
final LatLng point = LatLng.newInstance(position.getLat(),
position.getLon());
Marker marker = new Marker(point);
_overlayManager.addOverlay(marker);
marker.addMarkerClickHandler(new MarkerClickHandler() {
@Override
public void onClick(MarkerClickEvent event) {
FlowPanel panel = new FlowPanel();
TripBean trip = bean.getTrip();
RouteBean route = trip.getRoute();
panel.add(new DivWidget("Route: " + route.getShortName()));
panel.add(new DivWidget("Trip: " + trip.getId()));
panel.add(new DivWidget("Destination: "
+ bean.getTrip().getTripHeadsign()));
InfoWindow window = _map.getInfoWindow();
window.open(point, new InfoWindowContent(panel));
}
});
}
}
@Override
public void onFailure(Throwable caught) {
}
}
}