Example usage for com.google.gwt.maps.client.base LatLngBounds union

Introduction

In this page you can find the example usage for com.google.gwt.maps.client.base LatLngBounds union.

Prototype

public final native LatLngBounds union(LatLngBounds other) ;

Source Link

Document

Extends this bounds to contain the union of this and the given bounds.

Usage

From source file:com.google.sampling.experiential.client.ChartPanel.java

License:Open Source License

private Widget renderEventsOnMap() {
    markers.clear();/* ww w. j av  a2s  .co  m*/
    createMap();
    final LatLngBounds bounds = LatLngBounds.newInstance(google, google);
    for (final EventDAO event : data) {
        String latLon = event.getWhatByKey(input.getName());
        if (latLon == null || latLon.length() == 0) {
            continue;
        }
        String[] splits = latLon.split(",");
        if (splits == null || splits.length != 2) {
            continue;
        }
        try {
            double latitude = Double.parseDouble(splits[0]);
            double longitude = Double.parseDouble(splits[1]);

            MarkerOptions markerOptions = MarkerOptions.newInstance();
            markerOptions.setMap(map);
            markerOptions.setTitle(event.getWhatString());
            LatLng newInstance = LatLng.newInstance(latitude, longitude);
            final Marker marker = Marker.newInstance(markerOptions);
            marker.setPosition(newInstance);
            bounds.union(LatLngBounds.newInstance(marker.getPosition(), marker.getPosition()));
            marker.addClickHandler(new ClickMapHandler() {
                @Override
                public void onEvent(ClickMapEvent mapEvent) {
                    openInfoWindowForMarker(event, marker);
                }
            });
            markers.put(event, marker);
        } catch (NumberFormatException nfe) {
        }
    }

    map.fitBounds(bounds);

    final LatLng oldCenter = map.getCenter();
    final int oldZoom = map.getZoom();
    map.addResizeHandler(new ResizeMapHandler() {

        @Override
        public void onEvent(ResizeMapEvent event) {
            map.setCenter(oldCenter);
            map.setZoom(oldZoom);
            map.fitBounds(bounds);
        }
    });
    Window.addResizeHandler(new ResizeHandler() {
        @Override
        public void onResize(ResizeEvent event) {
            MapHandlerRegistration.trigger(map, MapEventType.RESIZE);
            GWT.log("Window has been resized!");
        }
    });
    return map;
}

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