/**
* Implementation of the {@link Layer} interface which reads its data from a file during the {@link
* Layer#initialize} method.
*
* @author Brent Bryan
* @author John Taylor
*/
public abstract class AbstractFileBasedLayer extends AbstractSourceLayer {
private static final String TAG = MiscUtil.getTag(AbstractFileBasedLayer.class);
private static final Executor BACKGROUND_EXECUTOR = Executors.newFixedThreadPool(1);
private final AssetManager assetManager;
private final String fileName;
private final List<AstronomicalSource> fileSources = new ArrayList<>();
public AbstractFileBasedLayer(AssetManager assetManager, Resources resources, String fileName) {
super(resources, false);
this.assetManager = assetManager;
this.fileName = fileName;
}
@Override
public void initialize() {
BACKGROUND_EXECUTOR.execute(
new Runnable() {
public void run() {
readSourceFile(fileName);
AbstractFileBasedLayer.super.initialize();
}
});
}
@Override
protected void initializeAstroSources(ArrayList<AstronomicalSource> sources) {
sources.addAll(fileSources);
}
private void readSourceFile(String sourceFilename) {
Log.d(TAG, "Loading Proto File: " + sourceFilename + "...");
InputStream in = null;
try {
in = assetManager.open(sourceFilename, AssetManager.ACCESS_BUFFER);
AstronomicalSourcesProto.Builder builder = AstronomicalSourcesProto.newBuilder();
builder.mergeFrom(in);
for (AstronomicalSourceProto proto : builder.build().getSourceList()) {
fileSources.add(new ProtobufAstronomicalSource(proto, getResources()));
}
Log.d(TAG, "Found: " + fileSources.size() + " sources");
String s =
String.format(
"Finished Loading: %s | Found %s sourcs.\n", sourceFilename, fileSources.size());
Blog.d(this, s);
refreshSources(EnumSet.of(UpdateType.Reset));
} catch (IOException e) {
Log.e(TAG, "Unable to open " + sourceFilename);
} finally {
Closeables.closeQuietly(in);
}
}
}
// TODO(brent): merge with AbstractLayer?
public abstract class AbstractSourceLayer extends AbstractLayer {
private static final String TAG = MiscUtil.getTag(AbstractSourceLayer.class);
private final ArrayList<TextSource> textSources = new ArrayList<TextSource>();
private final ArrayList<ImageSource> imageSources = new ArrayList<ImageSource>();
private final ArrayList<PointSource> pointSources = new ArrayList<PointSource>();
private final ArrayList<LineSource> lineSources = new ArrayList<LineSource>();
private final ArrayList<AstronomicalSource> astroSources = new ArrayList<AstronomicalSource>();
private HashMap<String, SearchResult> searchIndex = new HashMap<String, SearchResult>();
private PrefixStore prefixStore = new PrefixStore();
private final boolean shouldUpdate;
private SourceUpdateClosure closure;
public AbstractSourceLayer(Resources resources, boolean shouldUpdate) {
super(resources);
this.shouldUpdate = shouldUpdate;
}
@Override
public synchronized void initialize() {
astroSources.clear();
Log.d("RLP", "RLP this is initialization in Abstract source layer");
initializeAstroSources(astroSources);
for (AstronomicalSource astroSource : astroSources) {
Sources sources = astroSource.initialize();
textSources.addAll(sources.getLabels());
imageSources.addAll(sources.getImages());
pointSources.addAll(sources.getPoints());
lineSources.addAll(sources.getLines());
List<String> names = astroSource.getNames();
if (!names.isEmpty()) {
GeocentricCoordinates searchLoc = astroSource.getSearchLocation();
for (String name : names) {
searchIndex.put(name.toLowerCase(), new SearchResult(name, searchLoc));
prefixStore.add(name.toLowerCase());
}
}
}
// update the renderer
updateLayerForControllerChange();
}
@Override
protected void updateLayerForControllerChange() {
refreshSources(EnumSet.of(UpdateType.Reset));
if (shouldUpdate) {
if (closure == null) {
closure = new SourceUpdateClosure(this);
}
addUpdateClosure(closure);
}
}
/**
* Subclasses should override this method and add all their {@link AstronomicalSource} to the
* given {@link ArrayList}.
*/
protected abstract void initializeAstroSources(ArrayList<AstronomicalSource> sources);
/**
* Redraws the sources on this layer, after first refreshing them based on the current state of
* the {@link com.google.android.stardroid.control.AstronomerModel}.
*/
protected void refreshSources() {
refreshSources(EnumSet.noneOf(UpdateType.class));
}
/**
* Redraws the sources on this layer, after first refreshing them based on the current state of
* the {@link com.google.android.stardroid.control.AstronomerModel}.
*/
protected synchronized void refreshSources(EnumSet<UpdateType> updateTypes) {
for (AstronomicalSource astroSource : astroSources) {
updateTypes.addAll(astroSource.update());
}
if (!updateTypes.isEmpty()) {
redraw(updateTypes);
}
}
/** Forcefully resets and redraws all sources on this layer everything on this layer. */
@Override
protected void redraw() {
refreshSources(EnumSet.of(UpdateType.Reset));
}
private final void redraw(EnumSet<UpdateType> updateTypes) {
super.redraw(textSources, pointSources, lineSources, imageSources, updateTypes);
}
@Override
public List<SearchResult> searchByObjectName(String name) {
Log.d(TAG, "Search planets layer for " + name);
List<SearchResult> matches = new ArrayList<SearchResult>();
SearchResult searchResult = searchIndex.get(name.toLowerCase());
if (searchResult != null) {
matches.add(searchResult);
}
Log.d(TAG, getLayerName() + " provided " + matches.size() + "results for " + name);
return matches;
}
@Override
public Set<String> getObjectNamesMatchingPrefix(String prefix) {
Log.d(TAG, "Searching planets layer for prefix " + prefix);
Set<String> results = prefixStore.queryByPrefix(prefix);
Log.d(TAG, "Got " + results.size() + " results for prefix " + prefix + " in " + getLayerName());
return results;
}
/** Implementation of the {@link UpdateClosure} interface used to update a layer */
public static class SourceUpdateClosure extends AbstractUpdateClosure {
private final AbstractSourceLayer layer;
public SourceUpdateClosure(AbstractSourceLayer layer) {
this.layer = layer;
}
@Override
public void run() {
layer.refreshSources();
}
}
}
/**
* Controls time as selected / created by the user in Time Travel mode. Includes control for
* "playing" through time in both directions at different speeds.
*
* @author Dominic Widdows
* @author John Taylor
*/
public class TimeTravelClock implements Clock {
/** A data holder for the time stepping speeds. */
private static class Speed {
/** The speed in seconds per second. */
public double rate;
/** The id of the Speed's string label. */
public int labelTag;
public Speed(double rate, int labelTag) {
this.rate = rate;
this.labelTag = labelTag;
}
}
public static final long STOPPED = 0;
private static final Speed[] SPEEDS = {
new Speed(-SECONDS_PER_WEEK, R.string.time_travel_week_speed_back),
new Speed(-SECONDS_PER_DAY, R.string.time_travel_day_speed_back),
new Speed(-SECONDS_PER_HOUR, R.string.time_travel_hour_speed_back),
new Speed(-SECONDS_PER_10MINUTE, R.string.time_travel_10minute_speed_back),
new Speed(-SECONDS_PER_MINUTE, R.string.time_travel_minute_speed_back),
new Speed(-SECONDS_PER_SECOND, R.string.time_travel_second_speed_back),
new Speed(STOPPED, R.string.time_travel_stopped),
new Speed(SECONDS_PER_SECOND, R.string.time_travel_second_speed),
new Speed(SECONDS_PER_MINUTE, R.string.time_travel_minute_speed),
new Speed(SECONDS_PER_10MINUTE, R.string.time_travel_10minute_speed),
new Speed(SECONDS_PER_HOUR, R.string.time_travel_hour_speed),
new Speed(SECONDS_PER_DAY, R.string.time_travel_day_speed),
new Speed(SECONDS_PER_WEEK, R.string.time_travel_week_speed),
};
private static final int STOPPED_INDEX = SPEEDS.length / 2;
private int speedIndex = STOPPED_INDEX;
private static final String TAG = MiscUtil.getTag(TimeTravelClock.class);
private long timeLastSet;
private long simulatedTime;
/**
* Sets the internal time.
*
* @param date Date to which the timeTravelDate will be set.
*/
public synchronized void setTimeTravelDate(Date date) {
pauseTime();
timeLastSet = System.currentTimeMillis();
simulatedTime = date.getTime();
}
/*
* Controller logic for playing through time at different directions and
* speeds.
*/
/**
* Increases the rate of time travel into the future (or decreases the rate of time travel into
* the past.)
*/
public synchronized void accelerateTimeTravel() {
if (speedIndex < SPEEDS.length - 1) {
Log.d(TAG, "Accelerating speed to: " + SPEEDS[speedIndex]);
++speedIndex;
} else {
Log.d(TAG, "Already at max forward speed");
}
}
/**
* Decreases the rate of time travel into the future (or increases the rate of time travel into
* the past.)
*/
public synchronized void decelerateTimeTravel() {
if (speedIndex > 0) {
Log.d(TAG, "Decelerating speed to: " + SPEEDS[speedIndex]);
--speedIndex;
} else {
Log.d(TAG, "Already at maximum backwards speed");
}
}
/** Pauses time. */
public synchronized void pauseTime() {
Log.d(TAG, "Pausing time");
assert SPEEDS[STOPPED_INDEX].rate == 0.0;
speedIndex = STOPPED_INDEX;
}
/** @return The current speed tag, a string describing the speed of time travel. */
public int getCurrentSpeedTag() {
return SPEEDS[speedIndex].labelTag;
}
@Override
public long getTimeInMillisSinceEpoch() {
long now = System.currentTimeMillis();
long elapsedTimeMillis = now - timeLastSet;
double rate = SPEEDS[speedIndex].rate;
long timeDelta = (long) (rate * elapsedTimeMillis);
if (Math.abs(rate) >= SECONDS_PER_DAY) {
// For speeds greater than or equal to 1 day/sec we want to move in
// increments of 1 day so that the map isn't dizzyingly fast.
// This shows the slow annual procession of the stars.
long days = (long) (timeDelta / MILLISECONDS_PER_DAY);
if (days == 0) {
return simulatedTime;
}
// Note that this assumes that time requests will occur right on the
// day boundary. If they occur later then the next time jump
// might be a bit shorter than it should be. Nevertheless the refresh
// rate of the renderer is high enough that this should be unnoticeable.
timeDelta = (long) (days * MILLISECONDS_PER_DAY);
}
timeLastSet = now;
simulatedTime += timeDelta;
return simulatedTime;
}
}
/**
* Base implementation of the {@link Layer} interface.
*
* @author John Taylor
* @author Brent Bryan
*/
public abstract class AbstractLayer implements Layer {
private static final String TAG = MiscUtil.getTag(AbstractLayer.class);
private final ReentrantLock renderMapLock = new ReentrantLock();
private final HashMap<Class<?>, RenderManager<?>> renderMap = Maps.newHashMap();
private final Resources resources;
private RendererController renderer;
public AbstractLayer(Resources resources) {
this.resources = resources;
}
protected Resources getResources() {
return resources;
}
@Override
public void registerWithRenderer(RendererController rendererController) {
this.renderMap.clear();
this.renderer = rendererController;
updateLayerForControllerChange();
}
protected abstract void updateLayerForControllerChange();
@Override
public void setVisible(boolean visible) {
Log.w(TAG, "RLP setVisible: entry");
renderMapLock.lock();
try {
if (renderer == null) {
Log.w(
TAG, "RLP setVisible: Renderer not set - aborting " + this.getClass().getSimpleName());
return;
}
AtomicSection atomic = renderer.createAtomic();
for (Entry<Class<?>, RenderManager<?>> entry : renderMap.entrySet()) {
entry.getValue().queueEnabled(visible, atomic);
}
renderer.queueAtomic(atomic);
} finally {
renderMapLock.unlock();
}
}
protected void addUpdateClosure(UpdateClosure closure) {
if (renderer != null) {
renderer.addUpdateClosure(closure);
}
}
protected void removeUpdateClosure(UpdateClosure closure) {
if (renderer != null) {
renderer.removeUpdateCallback(closure);
}
}
/**
* Forces a redraw of this layer, clearing all of the information about this layer in the renderer
* and repopulating it.
*/
protected abstract void redraw();
protected void redraw(
final ArrayList<TextSource> textSources,
final ArrayList<PointSource> pointSources,
final ArrayList<LineSource> lineSources,
final ArrayList<ImageSource> imageSources) {
redraw(textSources, pointSources, lineSources, imageSources, EnumSet.of(UpdateType.Reset));
}
/**
* Updates the renderer (using the given {@link UpdateType}), with then given set of UI elements.
* Depending on the value of {@link UpdateType}, current sources will either have their state
* updated, or will be overwritten by the given set of UI elements.
*/
protected void redraw(
final ArrayList<TextSource> textSources,
final ArrayList<PointSource> pointSources,
final ArrayList<LineSource> lineSources,
final ArrayList<ImageSource> imageSources,
EnumSet<UpdateType> updateTypes) {
// Log.d(TAG, getLayerName() + "RLP Updating renderer: " + updateTypes);
if (renderer == null) {
Log.w(TAG, "RLP Renderer not set - aborting: " + this.getClass().getSimpleName());
return;
}
renderMapLock.lock();
try {
// Blog.d(this, "Redraw: " + updateTypes);
AtomicSection atomic = renderer.createAtomic();
setSources(textSources, updateTypes, TextSource.class, atomic);
setSources(pointSources, updateTypes, PointSource.class, atomic);
setSources(lineSources, updateTypes, LineSource.class, atomic);
setSources(imageSources, updateTypes, ImageSource.class, atomic);
renderer.queueAtomic(atomic);
} finally {
renderMapLock.unlock();
}
}
/**
* Sets the objects on the {@link RenderManager} to the given values, creating (or disabling) the
* {@link RenderManager} if necessary.
*/
private <E> void setSources(
ArrayList<E> sources, EnumSet<UpdateType> updateType, Class<E> clazz, AtomicSection atomic) {
@SuppressWarnings("unchecked")
RenderManager<E> manager = (RenderManager<E>) renderMap.get(clazz);
if (sources == null || sources.isEmpty()) {
if (manager != null) {
// TODO(brent): we should really just disable this layer, but in a
// manner that it will automatically be reenabled when appropriate.
Blog.d(this, " " + clazz.getSimpleName());
manager.queueObjects(Collections.<E>emptyList(), updateType, atomic);
}
return;
}
if (manager == null) {
manager = createRenderManager(clazz, atomic);
renderMap.put(clazz, manager);
}
// Blog.d(this, " " + clazz.getSimpleName() + " " + sources.size());
manager.queueObjects(sources, updateType, atomic);
}
@SuppressWarnings("unchecked")
<E> RenderManager<E> createRenderManager(Class<E> clazz, RendererControllerBase controller) {
if (clazz.equals(ImageSource.class)) {
return (RenderManager<E>) controller.createImageManager(getLayerId());
} else if (clazz.equals(TextSource.class)) {
return (RenderManager<E>) controller.createLabelManager(getLayerId());
} else if (clazz.equals(LineSource.class)) {
return (RenderManager<E>) controller.createLineManager(getLayerId());
} else if (clazz.equals(PointSource.class)) {
return (RenderManager<E>) controller.createPointManager(getLayerId());
}
throw new IllegalStateException("Unknown source type: " + clazz);
}
@Override
public List<SearchResult> searchByObjectName(String name) {
// By default, layers will return no search results.
// Override this if the layer should be searchable.
return Collections.emptyList();
}
@Override
public Set<String> getObjectNamesMatchingPrefix(String prefix) {
// By default, layers will return no search results.
// Override this if the layer should be searchable.
return Collections.emptySet();
}
/** Provides a string ID to the internationalized name of this layer. */
// TODO(brent): could this be combined with getLayerId? Not sure - they
// serve slightly different purposes.
protected abstract int getLayerNameId();
@Override
public String getPreferenceId() {
return getPreferenceId(getLayerNameId());
}
protected String getPreferenceId(int layerNameId) {
return "source_provider." + layerNameId;
}
@Override
public String getLayerName() {
return getStringFromId(getLayerNameId());
}
/** Return an internationalized string from a string resource id. */
protected String getStringFromId(int resourceId) {
return resources.getString(resourceId);
}
}
/**
* If enabled, keeps the sky gradient up to date.
*
* @author John Taylor
* @author Brent Bryan
*/
public class SkyGradientLayer implements Layer {
private static final String TAG = MiscUtil.getTag(SkyGradientLayer.class);
private static final long UPDATE_FREQUENCY_MS = 5L * TimeConstants.MILLISECONDS_PER_MINUTE;
private final ReentrantLock rendererLock = new ReentrantLock();
private final AstronomerModel model;
private final Resources resources;
private RendererController renderer;
private long lastUpdateTimeMs = 0L;
public SkyGradientLayer(AstronomerModel model, Resources resources) {
this.model = model;
this.resources = resources;
}
@Override
public void initialize() {}
@Override
public void registerWithRenderer(RendererController controller) {
this.renderer = controller;
redraw();
}
@Override
public void setVisible(boolean visible) {
Log.d(TAG, "Setting showSkyGradient " + visible);
if (visible) {
redraw();
} else {
rendererLock.lock();
try {
renderer.queueDisableSkyGradient();
} finally {
rendererLock.unlock();
}
}
}
/** Redraws the sky shading gradient using the model's current time. */
protected void redraw() {
Date modelTime = model.getTime();
if (Math.abs(modelTime.getTime() - lastUpdateTimeMs) > UPDATE_FREQUENCY_MS) {
lastUpdateTimeMs = modelTime.getTime();
RaDec sunPosition = SolarPositionCalculator.getSolarPosition(modelTime);
// Log.d(TAG, "Enabling sky gradient with sun position " + sunPosition);
rendererLock.lock();
try {
renderer.queueEnableSkyGradient(GeocentricCoordinates.getInstance(sunPosition));
} finally {
rendererLock.unlock();
}
}
}
@Override
public int getLayerId() {
return 0;
}
public String getPreferenceId() {
return "source_provider." + getLayerNameId();
}
public String getLayerName() {
return resources.getString(getLayerNameId());
}
private int getLayerNameId() {
return R.string.show_sky_gradient;
}
@Override
public List<SearchResult> searchByObjectName(String name) {
return Collections.emptyList();
}
@Override
public Set<String> getObjectNamesMatchingPrefix(String prefix) {
return Collections.emptySet();
}
}
/** Edit the user's preferences. */
public class EditSettingsActivity extends PreferenceActivity implements OnPreferenceChangeListener {
/** These must match the keys in the preference_screen.xml file. */
private static final String LONGITUDE = "longitude";
private static final String LATITUDE = "latitude";
private static final String LOCATION = "location";
private static final String TAG = MiscUtil.getTag(EditSettingsActivity.class);
private Geocoder geocoder;
private ActivityLightLevelManager activityLightLevelManager;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
activityLightLevelManager =
new ActivityLightLevelManager(
new ActivityLightLevelChanger(this, null),
PreferenceManager.getDefaultSharedPreferences(this));
geocoder = new Geocoder(this);
addPreferencesFromResource(R.xml.preference_screen);
if (!StardroidApplication.getSupportsNewSensors()) {
findPreference("fused_sensor").setEnabled(false);
}
findPreference("sensor_damping")
.setEnabled(
!PreferenceManager.getDefaultSharedPreferences(this).getBoolean("fused_sensor", false));
findPreference("fused_sensor").setOnPreferenceChangeListener(this);
Preference editPreference = findPreference(LOCATION);
// TODO(johntaylor) if the lat long prefs get changed manually, we should really
// reset the placename to "" too.
editPreference.setOnPreferenceChangeListener(
new OnPreferenceChangeListener() {
public boolean onPreferenceChange(Preference preference, Object newValue) {
Log.d(TAG, "Place to be updated to " + newValue);
boolean success = setLatLongFromPlace(newValue.toString());
return success;
}
});
}
public boolean onPreferenceChange(Preference preference, Object newValue) {
if (preference.getKey().equals("fused_sensor")) {
findPreference("sensor_damping").setEnabled(!newValue.toString().equals("true"));
}
return true;
}
@Override
public void onStart() {
super.onStart();
Analytics.getInstance(this).trackPageView(Analytics.EDIT_SETTINGS_ACTIVITY);
}
@Override
public void onResume() {
super.onResume();
activityLightLevelManager.onResume();
}
@Override
public void onPause() {
super.onPause();
updatePreferences();
activityLightLevelManager.onPause();
}
/**
* Updates preferences on singletons, so we don't have to register preference change listeners for
* them.
*/
private void updatePreferences() {
Log.d(TAG, "Updating preferences");
Analytics.getInstance(this).setEnabled(findPreference(Analytics.PREF_KEY).isEnabled());
}
protected boolean setLatLongFromPlace(String place) {
List<Address> addresses = new ArrayList<Address>();
try {
addresses = geocoder.getFromLocationName(place, 1);
} catch (IOException e) {
Toast.makeText(this, getString(R.string.location_unable_to_geocode), Toast.LENGTH_SHORT)
.show();
return false;
}
if (addresses.size() == 0) {
showNotFoundDialog(place);
return false;
}
// TODO(johntaylor) let the user choose, but for now just pick the first.
Address first = addresses.get(0);
setLatLong(first.getLatitude(), first.getLongitude());
return true;
}
private void setLatLong(double latitude, double longitude) {
EditTextPreference latPreference = (EditTextPreference) findPreference(LATITUDE);
EditTextPreference longPreference = (EditTextPreference) findPreference(LONGITUDE);
latPreference.setText(Double.toString(latitude));
longPreference.setText(Double.toString(longitude));
String message = String.format(getString(R.string.location_place_found), latitude, longitude);
Log.d(TAG, message);
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
private void showNotFoundDialog(String place) {
String message = String.format(getString(R.string.location_not_found), place);
AlertDialog.Builder dialog =
new AlertDialog.Builder(this)
.setTitle(R.string.location_not_found_title)
.setMessage(message)
.setPositiveButton(
android.R.string.ok,
new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialog.show();
}
}
