Example usage for com.google.gwt.maps.client.base HasLatLngBounds getSouthWest

Introduction

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

Prototype

public HasLatLng getSouthWest();

Source Link

Document

Returns the south-west corner of this bounds.

Usage

From source file:com.google.mobile.trippy.web.client.db.DefaultSearchService.java

License:Apache License

/**
 * Lonely planet search related methods//  w w  w.  ja v  a2  s . co  m
 */

private void doLpSearch(final String poiType, final HasLatLngBounds searchBounds,
        final SearchResultsListener listener) {

    final List<SearchItem> searchItemList = new ArrayList<SearchItem>();

    lPSearchService.searchPOIByBoundingBox(searchBounds.getNorthEast().getLatitude(),
            searchBounds.getSouthWest().getLatitude(), searchBounds.getNorthEast().getLongitude(),
            searchBounds.getSouthWest().getLongitude(), poiType, new AsyncCallback<ArrayList<POI>>() {

                @Override
                public void onFailure(Throwable caught) {
                    listener.onFailure(caught);
                }

                @Override
                public void onSuccess(final ArrayList<POI> results) {
                    addLPResultsToList(poiType, searchBounds, searchItemList, results);
                    searchResultsCache.put(getResultsCacheKey(SearchType.LP, poiType, searchBounds),
                            searchItemList);
                    listener.onSuccess(searchItemList);
                }
            });
}

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From source file:com.google.mobile.trippy.web.client.db.DefaultSearchService.java

License:Apache License

@Override
public String boundsToString(final HasLatLngBounds bounds) {
    return bounds.getSouthWest().getLatitude() + "," + bounds.getSouthWest().getLongitude() + ","
            + bounds.getNorthEast().getLatitude() + "," + bounds.getNorthEast().getLongitude();
}

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From source file:com.google.mobile.trippy.web.client.presenter.CreateNewTripPresenter.java

License:Apache License

/**
 * Create Trip and Add Trip to the Db.//  w  w  w .  jav a 2s.c om
 */
void addTripToDb(final String location, final String address, final HasLatLngBounds latlngBound) {
    final Trip trip = new Trip();
    trip.setLocation(location);
    trip.setDuration(Constants.DEFAULT_TRIP_DURATION);
    trip.setLatitude(latlngBound.getCenter().getLatitude());
    trip.setLongitude(latlngBound.getCenter().getLongitude());

    // LP place details.
    trip.setPlaceId(0L);
    trip.setNorthLatitude(latlngBound.getNorthEast().getLatitude());
    trip.setSouthLatitude(latlngBound.getSouthWest().getLatitude());
    trip.setEastLongitude(latlngBound.getNorthEast().getLongitude());
    trip.setWestLongitude(latlngBound.getSouthWest().getLongitude());

    trip.setStartDate(Constants.UNSCHEDULED_DATE);
    trip.setLastModified(new Date());
    trip.setAddedOn(new Date());
    trip.setName(location);
    trip.setDescription("");
    trip.setThumbsUp(0);
    trip.setThumbsDown(0);

    final Toast toast = singletonComponents.getToast();
    toast.showLoading(singletonComponents.getMessage().toastMsgCreatingTrip());
    singletonComponents.getTripService().addTrip(trip, new AsyncCallback<Trip>() {

        @Override
        public void onSuccess(final Trip result) {
            toast.hideLoading();
            toast.showToast(singletonComponents.getMessage().tripCreated());
            singletonComponents.getEventBus().fireEvent(new ShowTripScheduleEvent(result, true));
        }

        @Override
        public void onFailure(final Throwable caught) {
            toast.hideLoading();
            toast.showToast(singletonComponents.getMessage().tripSaveFailed());
            singletonComponents.getEventBus().fireEvent(new ShowHomePageEvent());
        }
    });
}

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From source file:com.mashery.examples.api.client.weatherbug.WeatherBugOverlayView.java

License:Open Source License

@Override
public void draw() {
    HasLatLngBounds bounds = getMap().getBounds();
    HasMapCanvasProjection ovrPrj = getProjection();
    HasPoint ovrNE = ovrPrj.fromLatLngToDivPixel(bounds.getNorthEast());
    HasPoint ovrSW = ovrPrj.fromLatLngToDivPixel(bounds.getSouthWest());

    div.getStyle().setLeft(ovrSW.getX(), Unit.PX);
    div.getStyle().setTop(ovrNE.getY(), Unit.PX);
    div.getStyle().setWidth(ovrNE.getX() - ovrSW.getX(), Unit.PX);
    div.getStyle().setHeight(ovrSW.getY() - ovrNE.getY(), Unit.PX);

    String endpoint = WEATHERBUG_ENDPOINT.replace("${layerType}", layerType.getPath());
    HashSet<TileKey> usedTiles = new HashSet<TileKey>();

    int zoom = getMap().getZoom();
    double scale = Math.pow(2d, zoom);
    HasProjection prj = getMap().getProjection();
    LatLng nwLatLng = new LatLng(bounds.getNorthEast().getLatitude(), bounds.getSouthWest().getLongitude());
    HasPoint nwRaw = prj.fromLatLngToPoint(nwLatLng);
    LatLng seLatLng = new LatLng(bounds.getSouthWest().getLatitude(), bounds.getNorthEast().getLongitude());
    HasPoint seRaw = prj.fromLatLngToPoint(seLatLng);

    Point nw = new Point(Math.floor(nwRaw.getX() * scale), Math.floor(nwRaw.getY() * scale));
    Point se = new Point(Math.floor(seRaw.getX() * scale), Math.floor(seRaw.getY() * scale));

    double offsetX = nw.getX() % 256d;
    double offsetY = nw.getY() % 256d;
    Point startPoint = new Point(nw.getX() - offsetX, nw.getY() - offsetY);

    while (startPoint.getY() < se.getY()) {
        Point p = new Point(startPoint.getX(), startPoint.getY());
        startPoint = new Point(startPoint.getX(), startPoint.getY() + 256);
        while (p.getX() < se.getX()) {
            int tx = (int) p.getX() / 256;
            int ty = (int) p.getY() / 256;

            TileKey tileKey = new TileKey(tx, ty, zoom);
            usedTiles.add(tileKey);/*from  w  w  w.  j  a va 2 s . co  m*/

            ImageElement img = tiles.remove(tileKey);
            if (img == null) {
                img = Document.get().createImageElement();
                img.getStyle().setBorderStyle(BorderStyle.NONE);
                img.getStyle().setBorderWidth(0d, Unit.PX);
                img.getStyle().setPosition(Position.ABSOLUTE);

                StringBuilder buf = new StringBuilder(endpoint);
                buf.append("&tx=").append(tx);
                buf.append("&ty=").append(ty);
                buf.append("&zm=").append(zoom);
                img.setSrc(buf.toString());

                div.appendChild(img);
            } else {
                img.getStyle().setVisibility(Visibility.VISIBLE);
            }

            img.getStyle().setLeft(p.getX() - nw.getX(), Unit.PX);
            img.getStyle().setTop(p.getY() - nw.getY(), Unit.PX);
            img.getStyle().setWidth(256d, Unit.PX);
            img.getStyle().setHeight(256d, Unit.PX);
            tiles.put(tileKey, img);

            p = new Point(p.getX() + 256, p.getY());
        }
    }

    for (Iterator<Map.Entry<TileKey, ImageElement>> i = tiles.entrySet().iterator(); i.hasNext();) {
        Map.Entry<TileKey, ImageElement> entry = i.next();
        if (!usedTiles.remove(entry.getKey())) {
            if (tiles.size() > TILE_CACHE_SIZE) {
                i.remove();
                entry.getValue().removeFromParent();
            } else {
                entry.getValue().getStyle().setVisibility(Visibility.HIDDEN);
            }
        }
    }
}

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