Examples with Layer org.mapsforge.map.layer.Layer used on opensource projects

Example 1 with Layer

use of org.mapsforge.map.layer.Layer in project satstat by mvglasow.

the class MapSectionFragment method destroyLayers.

/**
 * Destroys layers and associated tile caches for the map view.
 *
 * @param destroyOverlays Whether to destroy overlays (markers and circles) or just the tile layers
 */
private void destroyLayers(boolean destroyOverlays) {
    Layers layers = null;
    if (mapMap != null)
        layers = mapMap.getLayerManager().getLayers();
    if (mapDownloadLayer != null) {
        if (layers != null)
            layers.remove(mapDownloadLayer);
        mapDownloadLayer.onDestroy();
        mapDownloadLayer = null;
    }
    if (mapRendererLayer != null) {
        if (layers != null)
            layers.remove(mapRendererLayer);
        mapRendererLayer.onDestroy();
        mapRendererLayer = null;
    }
    if (mapDownloadTileCache != null) {
        mapDownloadTileCache.destroy();
        mapDownloadTileCache = null;
    }
    if (mapRendererTileCache != null) {
        mapRendererTileCache.destroy();
        mapRendererTileCache = null;
    }
    if (destroyOverlays && (layers != null))
        for (Layer layer : layers) {
            layer.onDestroy();
            layers.remove(layer);
        }
}

Example 2 with Layer

use of org.mapsforge.map.layer.Layer in project satstat by mvglasow.

the class MapSectionFragment method onLocationProvidersChanged.

/**
 * Updates internal data structures when the user's selection of location providers has changed.
 * @param providers The new set of location providers
 */
public void onLocationProvidersChanged(Set<String> providers) {
    Context context = this.getContext();
    List<String> allProviders = mainActivity.locationManager.getAllProviders();
    ArrayList<String> removedProviders = new ArrayList<String>();
    for (String pr : providerLocations.keySet()) if (!providers.contains(pr))
        removedProviders.add(pr);
    // remove cached locations and invalidators for providers which are no longer selected
    for (String pr : removedProviders) {
        providerLocations.remove(pr);
        providerInvalidators.remove(pr);
    }
    // ensure there is a cached location for each chosen provider (can be null)
    for (String pr : providers) {
        if ((allProviders.indexOf(pr) >= 0) && !providerLocations.containsKey(pr)) {
            Location location = new Location("");
            providerLocations.put(pr, location);
        }
    }
    // add overlays
    updateLocationProviderStyles();
    mapCircles = new HashMap<String, Circle>();
    mapMarkers = new HashMap<String, Marker>();
    Log.d(TAG, "Provider location cache: " + providerLocations.keySet().toString());
    Layers layers = mapMap.getLayerManager().getLayers();
    // remove all layers other than tile render layer from map
    for (Layer layer : layers) if (!(layer instanceof TileRendererLayer) && !(layer instanceof TileDownloadLayer)) {
        layer.onDestroy();
        layers.remove(layer);
    }
    for (String pr : providers) {
        // no invalidator for GPS, which is invalidated through GPS status
        if ((!pr.equals(LocationManager.GPS_PROVIDER)) && (providerInvalidators.get(pr)) == null) {
            final String provider = pr;
            final Context ctx = context;
            providerInvalidators.put(pr, new Runnable() {

                private String mProvider = provider;

                @Override
                public void run() {
                    Location location = providerLocations.get(mProvider);
                    if (location != null)
                        markLocationAsStale(location);
                    applyLocationProviderStyle(ctx, mProvider, Const.LOCATION_PROVIDER_GRAY);
                }
            });
        }
        String styleName = assignLocationProviderStyle(pr);
        LatLong latLong;
        float acc;
        boolean visible;
        if ((providerLocations.get(pr) != null) && (providerLocations.get(pr).getProvider() != "")) {
            latLong = new LatLong(providerLocations.get(pr).getLatitude(), providerLocations.get(pr).getLongitude());
            if (providerLocations.get(pr).hasAccuracy())
                acc = providerLocations.get(pr).getAccuracy();
            else
                acc = 0;
            visible = true;
            if (isLocationStale(providerLocations.get(pr)))
                styleName = Const.LOCATION_PROVIDER_GRAY;
            Log.d("MainActivity", pr + " has " + latLong.toString());
        } else {
            latLong = new LatLong(0, 0);
            acc = 0;
            visible = false;
            Log.d("MainActivity", pr + " has no location, hiding");
        }
        // Circle layer
        Resources res = context.getResources();
        TypedArray style = res.obtainTypedArray(res.getIdentifier(styleName, "array", context.getPackageName()));
        Paint fill = AndroidGraphicFactory.INSTANCE.createPaint();
        float density = context.getResources().getDisplayMetrics().density;
        fill.setColor(style.getColor(Const.STYLE_FILL, R.color.circle_gray_fill));
        fill.setStyle(Style.FILL);
        Paint stroke = AndroidGraphicFactory.INSTANCE.createPaint();
        stroke.setColor(style.getColor(Const.STYLE_STROKE, R.color.circle_gray_stroke));
        stroke.setStrokeWidth(Math.max(1.5f * density, 1));
        stroke.setStyle(Style.STROKE);
        Circle circle = new Circle(latLong, acc, fill, stroke);
        mapCircles.put(pr, circle);
        layers.add(circle);
        circle.setVisible(visible);
        // Marker layer
        Drawable drawable = style.getDrawable(Const.STYLE_MARKER);
        Bitmap bitmap = AndroidGraphicFactory.convertToBitmap(drawable);
        Marker marker = new Marker(latLong, bitmap, 0, -bitmap.getHeight() * 10 / 24);
        mapMarkers.put(pr, marker);
        layers.add(marker);
        marker.setVisible(visible);
        style.recycle();
    }
    // move layers into view
    updateMap();
}