/
LocationMapFragment.java
1206 lines (1002 loc) · 47.3 KB
/
LocationMapFragment.java
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/*
* Copyright (c) 2015-2019 by k3b.
*
* This file is part of AndroFotoFinder / #APhotoManager.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>
*/
package de.k3b.android.androFotoFinder.locationmap;
import android.app.Activity;
import android.app.DialogFragment;
import android.content.ContentResolver;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.annotation.NonNull;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.PopupMenu;
import android.widget.SeekBar;
import android.widget.Toast;
import org.osmdroid.api.IGeoPoint;
import org.osmdroid.events.DelayedMapListener;
import org.osmdroid.events.MapListener;
import org.osmdroid.events.ScrollEvent;
import org.osmdroid.events.ZoomEvent;
import org.osmdroid.util.BoundingBox;
import org.osmdroid.util.GeoPoint;
import org.osmdroid.views.MapView;
import org.osmdroid.views.overlay.Overlay;
import org.osmdroid.views.overlay.OverlayManager;
import org.xml.sax.InputSource;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Stack;
import de.k3b.android.androFotoFinder.FotoGalleryActivity;
import de.k3b.android.androFotoFinder.Global;
import de.k3b.android.androFotoFinder.LockScreen;
import de.k3b.android.androFotoFinder.R;
import de.k3b.android.androFotoFinder.ThumbNailUtils;
import de.k3b.android.androFotoFinder.directory.ShowInMenuHandler;
import de.k3b.android.androFotoFinder.imagedetail.ImageDetailActivityViewPager;
import de.k3b.android.androFotoFinder.queries.AndroidAlbumUtils;
import de.k3b.android.androFotoFinder.queries.FotoSql;
import de.k3b.android.osmdroid.ClickableIconOverlay;
import de.k3b.android.osmdroid.FolderOverlayEx;
import de.k3b.android.osmdroid.GuestureOverlay;
import de.k3b.android.osmdroid.IconOverlay;
import de.k3b.android.osmdroid.MarkerBubblePopup;
import de.k3b.android.osmdroid.MarkerEx;
import de.k3b.android.osmdroid.OsmdroidUtil;
import de.k3b.android.osmdroid.forge.MapsForgeSupport;
import de.k3b.android.util.IntentUtil;
import de.k3b.android.util.ResourceUtils;
import de.k3b.database.QueryParameter;
import de.k3b.geo.api.GeoPointDto;
import de.k3b.geo.api.IGeoInfoHandler;
import de.k3b.geo.api.IGeoPointInfo;
import de.k3b.geo.io.GeoUri;
import de.k3b.geo.io.gpx.GpxReaderBase;
import de.k3b.io.GalleryFilterParameter;
import de.k3b.io.GeoRectangle;
import de.k3b.io.IGalleryFilter;
import de.k3b.io.IGeoRectangle;
import de.k3b.io.collections.SelectedItems;
/**
* A fragment to display Foto locations in a geofrafic map.
* Used as Dialog to pick a location-area for filtering.
*/
public class LocationMapFragment extends DialogFragment {
protected static final int NO_MARKER_ID = -1;
protected String STATE_LAST_VIEWPORT = "LAST_VIEWPORT";
private static final int NO_ZOOM = OsmdroidUtil.NO_ZOOM;
private static final int RECALCULATE_ZOOM = OsmdroidUtil.RECALCULATE_ZOOM;
/** If there is more than 200 millisecs no zoom/scroll update markers */
protected static final int DEFAULT_INACTIVITY_DELAY_IN_MILLISECS = 200;
// for debugging
private static int sId = 1;
private final String mDebugPrefix;
protected final GeoUri mGeoUriEngine = new GeoUri(GeoUri.OPT_PARSE_INFER_MISSING);
protected MapView mMapView;
private SeekBar mZoomBar;
private ImageView mCurrentPhoto;
/** temporary 1x1 pix view where popup-menu is attached to */
private View mTempPopupMenuParentView = null;
/** contain the markers with itmen-count that gets recalculated on every map move/zoom */
private FolderOverlayEx mFolderOverlayGreenPhotoMarker;
private FolderOverlayEx mFolderOverlayBlueSelectionMarker;
/** Selected items in gallery */
private FolderOverlayEx mFolderOverlayBlueGpxMarker = null;
// handling current selection
protected IconOverlay mCurrrentSelectionRedMarker = null;
protected int mMarkerId = -1;
// api to fragment owner
protected OnDirectoryInteractionListener mDirectoryListener;
private ShowInMenuHandler showInMenuHandler = null;
/**
* setCenterZoom does not work in onCreate() because getHeight() and getWidth() are not calculated yet and return 0;
* setCenterZoom must be set later when getHeight() and getWith() are known (i.e. in onWindowFocusChanged()).
* <p/>
* see http://stackoverflow.com/questions/10411975/how-to-get-the-width-and-height-of-an-image-view-in-android/10412209#10412209
*/
private BoundingBox mDelayedZoomToBoundingBox = null;
private int mDelayedZoomLevel = RECALCULATE_ZOOM;
private boolean mIsInitialized = false;
private QueryParameter mRootQuery;
private double mMinZoomLevel;
private double mMaxZoomLevel;
public LocationMapFragment() {
// Required empty public constructor
mDebugPrefix = "LocationMapFragment#" + (sId++) + " ";
Global.debugMemory(mDebugPrefix, "ctor");
// Required empty public constructor
if (Global.debugEnabled || Global.debugEnabledMap) {
Log.d(Global.LOG_CONTEXT, mDebugPrefix + "()");
}
}
@Override public void onDestroy() {
saveLastViewPort(null);
if (mCurrentFotoMarkerLoader != null) mCurrentFotoMarkerLoader.cancel(false);
mCurrentFotoMarkerLoader = null;
showInMenuHandler = null;
if (mFotoMarkerRecycler != null) mFotoMarkerRecycler.empty();
mSelectedItemsHandler = null;
super.onDestroy();
// RefWatcher refWatcher = AndroFotoFinderApp.getRefWatcher(getActivity());
// refWatcher.watch(this);
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
mPopup = new MarkerBubblePopup<GeoPointDtoEx>(activity);
try {
if (activity instanceof OnDirectoryInteractionListener) {
mDirectoryListener = (OnDirectoryInteractionListener) activity;
}
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString()
+ " must implement OnDirectoryInteractionListener");
}
}
@Override
public void onDetach() {
if (mPopup != null) {
mPopup.close();
}
mPopup = null;
showInMenuHandler = null;
super.onDetach();
mDirectoryListener = null;
}
/** on ratation save current selelected view port */
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
saveLastViewPort(savedInstanceState);
}
private void saveLastViewPort(Bundle savedInstanceState) {
BoundingBox currentViewPort = this.mMapView.getBoundingBox();
if (savedInstanceState != null) {
savedInstanceState.putParcelable(STATE_LAST_VIEWPORT, currentViewPort);
}
String uriCurrentViewport = getCurrentGeoUri();
SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(getActivity());
SharedPreferences.Editor edit = sharedPref.edit();
edit.putString(STATE_LAST_VIEWPORT, uriCurrentViewport);
edit.apply();
if (Global.debugEnabled) {
Log.i(Global.LOG_CONTEXT, mDebugPrefix + "saveLastViewPort: " + uriCurrentViewport);
}
}
@NonNull
private IGeoPointInfo loadLastViewPort() {
SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(getActivity());
final String defaultValue = "geo:49,10?z=2";
String uri = sharedPref.getString(STATE_LAST_VIEWPORT, defaultValue);
IGeoPointInfo result = mGeoUriEngine.fromUri(uri);
if ((result == null) || Double.isNaN(result.getLongitude()) || (NO_ZOOM == result.getZoomMin())) {
result = mGeoUriEngine.fromUri(defaultValue);
}
if (Global.debugEnabled) {
Log.i(Global.LOG_CONTEXT, mDebugPrefix + "loadLastViewPort: " + uri);
}
return result;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
int zoomLevel = NO_ZOOM;
BoundingBox boundingBox = null;
/** after ratation restore selelected view port */
if (savedInstanceState != null) {
boundingBox = savedInstanceState.getParcelable(STATE_LAST_VIEWPORT);
}
if (boundingBox == null) {
// if not initialized from outside show last used value
IGeoPointInfo rectangle = loadLastViewPort();
zoomLevel = rectangle.getZoomMin();
boundingBox = new BoundingBox(
rectangle.getLatitude(),
rectangle.getLongitude(),
rectangle.getLatitude(),
rectangle.getLongitude());
}
zoomToBoundingBox("onCreateView", boundingBox , zoomLevel);
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_location_map, container, false);
mMapView = (MapView) view.findViewById(R.id.mapview);
if ((Global.mapsForgeDir == null) || (!Global.mapsForgeDir.exists()) || (!Global.mapsForgeDir.isDirectory())) {
Global.mapsForgeEnabled = false;
}
if (Global.mapsForgeEnabled) {
MapsForgeSupport.load(getActivity(), mMapView, Global.mapsForgeDir);
}
this.mCurrentPhoto = (ImageView) view.findViewById(R.id.image);
this.mCurrentPhoto.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
hideImage();
}
});
createZoomBar(view);
mMapView.addMapListener(new DelayedMapListener(new MapListener() {
@Override
public boolean onScroll(ScrollEvent event) {
reloadFotoMarker("onScroll");
return false;
}
@Override
public boolean onZoom(ZoomEvent event) {
double zoomLevel1 = mMapView.getZoomLevelDouble();
setZoomBarZoomLevel("onZoom ", zoomLevel1);
reloadFotoMarker("onZoom " + zoomLevel1);
return false;
}
}, DEFAULT_INACTIVITY_DELAY_IN_MILLISECS));
definteOverlays(mMapView);
// mFolderOverlay.add(createMarker(mMapView, ...));
if (getShowsDialog()) {
defineButtons(view);
String title = getActivity().getString(
R.string.area_menu_title);
getDialog().setTitle(title);
}
mMapView.addOnFirstLayoutListener(new MapView.OnFirstLayoutListener() {
@Override
public void onFirstLayout(View v, int left, int top, int right, int bottom) {
mIsInitialized = true;
final String why = "onFirstLayout";
int newZoom = zoomToBoundingBox(why, mDelayedZoomToBoundingBox, mDelayedZoomLevel);
mDelayedZoomToBoundingBox = null;
mDelayedZoomLevel = NO_ZOOM;
}
});
mSelectedItemsHandler.reloadSelectionMarker();
return view;
}
protected void setZoomBarZoomLevel(String why, double zoomLevel) {
// map: mMinZoomLevel..mMaxZoomLevel
// mZoomBar: 0..mMaxZoomLevel-mMinZoomLevel
int newProgress = (int) (zoomLevel - mMinZoomLevel);
if (newProgress != mZoomBar.getProgress()) {
// only if changed to avoid zoom events that modify the map
if (Global.debugEnabledMap) {
Log.i(Global.LOG_CONTEXT, mDebugPrefix
+ "setZoomBarZoomLevel(" + why
+ ") :"
+ newProgress
+ " (from "
+ mZoomBar.getProgress()
+ ") - " + mMinZoomLevel
+ ".." + zoomLevel
+ ".." + mMaxZoomLevel
);
}
mZoomBar.setProgress(newProgress);
}
}
protected void hideImage() {
mCurrentPhoto.setVisibility(View.GONE);
}
protected void definteOverlays(MapView mapView) {
final List<Overlay> overlays = mapView.getOverlays();
this.mCurrrentSelectionRedMarker = createSelectedItemOverlay();
mSelectedItemsHandler.mBlueMarker = ResourceUtils.getDrawable(getActivity(),R.drawable.marker_blue);
mFolderOverlayGreenPhotoMarker = createFolderOverlay(overlays);
mFolderOverlayBlueSelectionMarker = createFolderOverlay(overlays);
overlays.add(new GuestureOverlay(getActivity()));
mapView.setMultiTouchControls(true);
}
protected IconOverlay createSelectedItemOverlay() {
Drawable currrentSelectionIcon = ResourceUtils.getDrawable(getActivity(), R.drawable.marker_red);
// fixed positon, not updated on pick
return new IconOverlay(null, currrentSelectionIcon);
}
protected void defineButtons(View view) {
Button cmdCancel = (Button) view.findViewById(R.id.cmd_cancel);
if (cmdCancel != null) {
// only available on tablets.
// on small screen it would block the zoom out button
cmdCancel.setVisibility(View.VISIBLE);
cmdCancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
onCancel();
}
});
}
Button cmdOk = (Button) view.findViewById(R.id.ok);
cmdOk.setVisibility(View.VISIBLE);
cmdOk.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
onOk();
}
});
}
protected void onCancel() {
dismiss();
}
public IGeoRectangle getCurrentGeoRectangle() {
IGeoRectangle result = getGeoRectangle(mMapView.getBoundingBox());
return result;
}
protected void onOk() {
if (mDirectoryListener != null) {
IGeoRectangle result = getCurrentGeoRectangle();
if (Global.debugEnabled) {
Log.i(Global.LOG_CONTEXT, mDebugPrefix + "onOk: " + result);
}
mDirectoryListener.onDirectoryPick(result.toString(), FotoSql.QUERY_TYPE_GROUP_PLACE_MAP);
dismiss();
}
}
private void createZoomBar(View view) {
mMapView.setBuiltInZoomControls(true);
mZoomBar = (SeekBar) view.findViewById(R.id.zoomBar);
mMinZoomLevel = mMapView.getMinZoomLevel();
mMaxZoomLevel = OsmdroidUtil.getMaximumZoomLevel(mMapView);
mZoomBar.setMax((int) (mMaxZoomLevel - mMinZoomLevel));
mZoomBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (fromUser) {
mMapView.getController().setZoom(progress + mMinZoomLevel);
}
Toast.makeText(getActivity(), "" + progress, Toast.LENGTH_SHORT).show();
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
/* change ignored */
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
/* change ignored */
}
});
}
private FolderOverlayEx createFolderOverlay(List<Overlay> overlays) {
FolderOverlayEx result = new FolderOverlayEx();
overlays.add(result);
return result;
}
/**
* (re)define map display. Data sohow from rootQuery + rectangle + zoomlevel.
*
* @param rootQuery if not null contain database where to limit the photo data displayed
* @param depricated_rootFilter should be null. if not null contain database where to limit the data displayed
* @param rectangle if nut null the initial visible rectange
* @param zoomlevel the initial zoomlevel
* @param selectedItems if not null: items to be displayed as blue markers
* @param gpxAdditionalPointsContentUri if not null the file containing additional geo coords for blue marker
* @param zoomToFit true mean recalculate zoomlevel from rectangle
*/
public void defineNavigation(QueryParameter rootQuery,
IGalleryFilter depricated_rootFilter,
GeoRectangle rectangle, int zoomlevel,
SelectedItems selectedItems,
Uri gpxAdditionalPointsContentUri, boolean zoomToFit) {
String debugContext = mDebugPrefix + "defineNavigation: ";
if (Global.debugEnabled || Global.debugEnabledMap) {
Log.i(Global.LOG_CONTEXT, debugContext + rectangle + ";z=" + zoomlevel);
}
this.mRootQuery = AndroidAlbumUtils.getAsMergedNewQuery(rootQuery, depricated_rootFilter);
mSelectedItemsHandler.define(selectedItems);
if (zoomToFit) {
zoomToFit(null, "defineNavigation");
} else {
// load this.mFolderOverlayBlueGpxMarker
GeoRectangle increasedRrectangle = defineGpxAdditionalPoints(gpxAdditionalPointsContentUri, rectangle);
zoomToBoundingBox(debugContext, increasedRrectangle, zoomlevel);
}
if ((rootQuery != null) || (depricated_rootFilter != null)) {
reloadFotoMarker(debugContext);
}
}
protected void zoomToBoundingBox(String debugContext, GeoRectangle rectangle, int zoomlevel) {
if (rectangle != null) {
if (!rectangle.isEmpty()) {
BoundingBox boundingBox = new BoundingBox(
rectangle.getLatitudeMax(),
rectangle.getLogituedMin(),
rectangle.getLatitudeMin(),
rectangle.getLogituedMax());
zoomToBoundingBox(debugContext, boundingBox, zoomlevel);
} else {
// rectangle is single point (size=0)
GeoPoint point = new GeoPoint(rectangle.getLatitudeMin(),rectangle.getLogituedMin());
OsmdroidUtil.zoomTo(this.mMapView, zoomlevel,point , null);
}
}
}
/**
* Loads items from gpxAdditionalPointsContentUri into this.mFolderOverlayBlueGpxMarker.
* @param gpxAdditionalPointsContentUri where the gpx data comes from or null if no gpx
* @param rectangle previous geo-rectangle-map-area
* @return new geo-rectangle-map-area from gpx
*/
protected GeoRectangle defineGpxAdditionalPoints(Uri gpxAdditionalPointsContentUri, GeoRectangle rectangle) {
if (gpxAdditionalPointsContentUri != null) {
if (Global.debugEnabled || Global.debugEnabledMap) {
Log.i(Global.LOG_CONTEXT, mDebugPrefix + "defineGpxAdditionalPoints: " + gpxAdditionalPointsContentUri);
}
final FolderOverlayEx folderForNewGpxItems = new FolderOverlayEx();
final GeoRectangle gpxBox = (rectangle == null) ? new GeoRectangle() : null;
ContentResolver cr = getActivity().getContentResolver();
final GeoPointDtoEx currentLoadedGeoPoint = new GeoPointDtoEx();
try {
InputStream is = cr.openInputStream(gpxAdditionalPointsContentUri);
GpxReaderBase parser = new GpxReaderBase(new IGeoInfoHandler() {
@Override
public boolean onGeoInfo(IGeoPointInfo iGeoPointInfo) {
return addGpxGeoPoint(folderForNewGpxItems, currentLoadedGeoPoint, gpxBox);
}
}, currentLoadedGeoPoint);
parser.parse(new InputSource(is));
if (gpxBox != null) {
// box 50% more on right,left,top,button. delta >= 0.01 degrees
gpxBox.increase(Global.mapMultiselectionBoxIncreaseByProcent, Global.mapMultiselectionBoxIncreaseMinSizeInDegrees);
}
} catch (IOException e) {
Log.w(Global.LOG_CONTEXT, mDebugPrefix + "defineGpxAdditionalPoints cannot open points from " + gpxAdditionalPointsContentUri);
e.printStackTrace();
}
if (mFolderOverlayBlueGpxMarker != null) {
mMapView.getOverlays().remove(mFolderOverlayBlueGpxMarker);
mFolderOverlayBlueGpxMarker = null;
}
mFolderOverlayBlueGpxMarker = folderForNewGpxItems;
mMapView.getOverlays().add(0, mFolderOverlayBlueGpxMarker);
if (Global.debugEnabled || Global.debugEnabledMap) {
Log.i(Global.LOG_CONTEXT, mDebugPrefix + "defineGpxAdditionalPoints itemcount: " + folderForNewGpxItems.getItems().size());
}
if (gpxBox != null) return gpxBox;
}
return rectangle;
}
private MarkerBubblePopup<GeoPointDtoEx> mPopup;
private static int mId = 1;
protected boolean addGpxGeoPoint(FolderOverlayEx destination, GeoPointDtoEx point, GeoRectangle box) {
Overlay marker = createMarkerEx(point);
destination.add(marker);
if (box != null) box.inflate(point.getLatitude(), point.getLongitude());
return true;
}
private Overlay createMarkerEx(GeoPointDtoEx point) {
GeoPointDtoEx position = (GeoPointDtoEx) point.clone();
// MarkerEx.setDefaultIcon(mSelectedItemsHandler.mBlueMarker);
// marker.setIcon(mSelectedItemsHandler.mBlueMarker); use global
return new MarkerEx<GeoPointDtoEx>(mPopup).set(mId++, position, mSelectedItemsHandler.mBlueMarker, position );
}
private int zoomToBoundingBox(String why, BoundingBox boundingBox, int zoomLevel) {
int recalculatedZoom = NO_ZOOM;
if (boundingBox != null) {
final double oldZoomLevelDouble = (mMapView == null) ? -1 : mMapView.getZoomLevelDouble();
final BoundingBox oldBoundingBox = (mMapView == null) ? null : mMapView.getBoundingBox();
if (mIsInitialized) {
// if map is already initialized
GeoPoint min = new GeoPoint(boundingBox.getLatSouth(), boundingBox.getLonWest());
if (zoomLevel != NO_ZOOM) {
recalculatedZoom = OsmdroidUtil.zoomTo(this.mMapView, zoomLevel, min, null);
} else {
GeoPoint max = new GeoPoint(boundingBox.getLatNorth(), boundingBox.getLonEast());
recalculatedZoom = OsmdroidUtil.zoomTo(this.mMapView, OsmdroidUtil.NO_ZOOM, min, max);
// this.mMapView.zoomToBoundingBox(boundingBox); this is to inexact
}
if (Global.debugEnabledMap) {
Log.i(Global.LOG_CONTEXT, mDebugPrefix
+ "zoomToBoundingBox(" + why
+ ") :"
+ boundingBox + "; z=" + zoomLevel // oldZoomLevelDouble
+ " <= "
+ oldBoundingBox+ "; z=" + oldZoomLevelDouble + "(" + recalculatedZoom + ")"
);
}
setZoomBarZoomLevel(why, recalculatedZoom);
} else {
// map not initialized yet. do it later.
this.mDelayedZoomToBoundingBox = boundingBox;
this.mDelayedZoomLevel = zoomLevel;
if (Global.debugEnabledMap) {
Log.i(Global.LOG_CONTEXT, mDebugPrefix
+ "zoomToBoundingBox-enque(" + why
+ "; z=" + oldZoomLevelDouble
+ ") :"
+ boundingBox
+ " <= "
+ oldBoundingBox
);
}
}
}
return recalculatedZoom;
}
/** all marker clicks will be delegated to LocationMapFragment#onFotoMarkerClicked() */
private class FotoMarker extends ClickableIconOverlay<Object> {
/**
* @return true if click was handeled.
*/
@Override
protected boolean onMarkerClicked(MapView mapView, int markerId, IGeoPoint makerPosition, Object markerData) {
return LocationMapFragment.this.onFotoMarkerClicked(this, markerId, makerPosition, markerData);
}
/**
* @return true if click was handeled.
*/
@Override
protected boolean onMarkerLongPress(MapView mapView, int markerId, IGeoPoint geoPosition, Object data) {
return LocationMapFragment.this.onFotoMarkerLongPress(this, markerId, geoPosition, data);
}
}
private void reloadFotoMarker(String why) {
if (mIsInitialized) {
// initialized
if (mCurrentFotoMarkerLoader == null) {
// not active yet
List<Overlay> oldItems = mFolderOverlayGreenPhotoMarker.getItems();
mLastZoom = this.mMapView.getZoomLevelDouble();
QueryParameter query = getCurrentAreaQuery();
if (Global.debugEnabledMap) {
Log.d(Global.LOG_CONTEXT, mDebugPrefix + "reloadFotoMarker(" + why + ")"
+ " zoom " + mLastZoom + ", query " + query);
}
reloadFotoMarker(query, oldItems);
} else {
// background load is already active. Remember that at least one scroll/zoom was missing
mFotoMarkerPendingLoads++;
}
}
}
private void reloadFotoMarker(QueryParameter query, List<Overlay> oldItems) {
mCurrentFotoMarkerLoader = new FotoMarkerLoaderTask(createHashMap(oldItems));
mCurrentFotoMarkerLoader.execute(query);
}
public QueryParameter getCurrentAreaQuery() {
double groupingFactor = getGroupingFactor(mLastZoom);
BoundingBox latLonArea = this.mMapView.getBoundingBox();
// only selected fields are required whithout where
QueryParameter query = FotoSql.getQueryGroupByPlace(groupingFactor);
query.clearWhere();
if (this.mRootQuery != null) {
query.getWhereFrom(this.mRootQuery, true);
}
// delta: make the grouping area a little bit bigger than the viewport
// so that counts at the borders are correct.
double delta = (groupingFactor > 0) ? (2.0 / groupingFactor) : 0.0;
IGeoRectangle rect = getGeoRectangle(latLonArea);
FotoSql.addWhereFilterLatLon(query
, rect.getLatitudeMin() - delta
, rect.getLatitudeMax() + delta
, rect.getLogituedMin() - delta
, rect.getLogituedMax() + delta);
return query;
}
private IGeoRectangle getGeoRectangle(BoundingBox boundingBox) {
GeoRectangle result = new GeoRectangle();
result.setLatitude(boundingBox.getLatSouth(), boundingBox.getLatNorth());
result.setLogitude(boundingBox.getLonWest(), boundingBox.getLonEast());
return result;
}
/** translates map-zoomlevel to groupfactor
* that tells sql how geo-points are grouped together.
*/
private double getGroupingFactor(double zoomlevel) {
// todo
return FotoSql.getGroupFactor(zoomlevel);
}
// for debugginc
private static int sInstanceCountFotoLoader = 1;
/** caching support: if zoom level changes the cached items become invalid
* because the marker clustering is different */
private double mLastZoom = NO_ZOOM;
/** how much mCurrentFotoMarkerLoader are tirggerd while task is loading */
private int mFotoMarkerPendingLoads = 0;
/** The factory LocationMapFragment.FotoMarkerLoaderTask#createMarker() tries to recycle old
* unused Fotomarkers before creating new */
private Stack<FotoMarker> mFotoMarkerRecycler = new Stack<FotoMarker>();
/** To allow canceling of loading task. There are 0 or one tasks running at a time */
private FotoMarkerLoaderTask mCurrentFotoMarkerLoader = null;
/** to load foto summary marker with numbers in the icons */
private class FotoMarkerLoaderTask extends MarkerLoaderTaskWithRecycling<FotoMarker> {
public FotoMarkerLoaderTask(HashMap<Integer, FotoMarker> oldItems) {
super(getActivity(), LocationMapFragment.this.mDebugPrefix + "-FotoMarkerLoaderTask#" + (sInstanceCountFotoLoader++) + "-",
mFotoMarkerRecycler, oldItems, NO_MARKER_COUNT_LIMIT);
}
@NonNull
protected FotoMarker createNewMarker() {
return new FotoMarker();
}
// This is called when doInBackground() is finished
@Override
protected void onPostExecute(OverlayManager result) {
boolean zoomLevelChanged = mMapView.getZoomLevelDouble() != mLastZoom;
if (isCancelled()) {
onLoadFinishedFotoMarker(null, zoomLevelChanged);
} else {
onLoadFinishedFotoMarker(result, zoomLevelChanged);
recyleItems(zoomLevelChanged, mOldItems);
}
mOldItems.clear();
mOldItems = null;
int recyclerSize = mFotoMarkerRecycler.size();
if (mStatus != null) {
mStatus.append("\n\tRecycler: ").append(mRecyclerSizeBefore).append(",")
.append(mRecyclerSizeAfter).append(",").append(recyclerSize)
.append("\n\t").append(mMapView.getBoundingBox())
.append(", z= ").append(mMapView.getZoomLevelDouble())
.append("\n\tPendingLoads: ").append(mFotoMarkerPendingLoads);
if (Global.debugEnabledSql) {
Log.w(Global.LOG_CONTEXT, mDebugPrefix + mStatus);
} else {
Log.i(Global.LOG_CONTEXT, mDebugPrefix + mStatus);
}
}
// in the meantime the mapview has moved: must recalculate again.
mCurrentFotoMarkerLoader = null;
if (mFotoMarkerPendingLoads > 0) {
String why = (Global.debugEnabledMap) ? ("Lost zoom/scroll event(s): " + mFotoMarkerPendingLoads) : null;
mFotoMarkerPendingLoads = 0;
reloadFotoMarker(why);
}
}
} // class FotoMarkerLoaderTask
/** gets called when FotoMarkerLoaderTask has finished.
*
* @param newFotoIcons null if there was an error
*/
private void onLoadFinishedFotoMarker(OverlayManager newFotoIcons, boolean zoomLevelChanged) {
StringBuilder dbg = (Global.debugEnabledSql || Global.debugEnabledMap) ? new StringBuilder() : null;
if (dbg != null) {
int found = (newFotoIcons != null) ? newFotoIcons.size() : 0;
dbg.append(mDebugPrefix).append("onLoadFinishedFotoMarker(z=")
.append(mMapView.getZoomLevelDouble()).append(") markers created: ").append(found).append(". ");
}
if (newFotoIcons != null) {
OverlayManager oldFotoIcons = mFolderOverlayGreenPhotoMarker.setOverlayManager(newFotoIcons);
if (oldFotoIcons != null) {
if (dbg != null) {
dbg.append(mDebugPrefix).append(" previous : : ").append(oldFotoIcons.size());
}
if (zoomLevelChanged) {
if (dbg != null) dbg
.append(" zoomLevelChanged - recycling : ")
.append(oldFotoIcons.size())
.append(" items");
for (Overlay item : oldFotoIcons) {
mFotoMarkerRecycler.add((FotoMarker) item);
}
}
oldFotoIcons.onDetach(this.mMapView);
oldFotoIcons.clear();
}
this.mMapView.invalidate();
}
if (dbg != null) {
Log.d(Global.LOG_CONTEXT, dbg.toString());
}
}
/**
* @return true if click was handeled.
*/
protected boolean onFotoMarkerClicked(IconOverlay marker, int markerId, IGeoPoint geoPosition, Object markerData) {
ThumbNailUtils.getThumb(markerId, mCurrentPhoto);
this.mCurrentPhoto.setVisibility(View.VISIBLE);
updateMarker(marker, markerId, geoPosition, markerData);
return true; // TODO
}
protected boolean onFotoMarkerLongPress(IconOverlay marker, int markerId, IGeoPoint geoPosition, Object markerData) {
onFotoMarkerClicked(marker, markerId, geoPosition, markerData);
return showContextMenu(this.mMapView, markerId, geoPosition, markerData);
}
protected void updateMarker(IconOverlay marker, int markerId, IGeoPoint makerPosition, Object markerData) {
mMarkerId = markerId;
if (mCurrrentSelectionRedMarker != null) {
mMapView.getOverlays().remove(mCurrrentSelectionRedMarker);
mCurrrentSelectionRedMarker.moveTo(makerPosition, mMapView);
mMapView.getOverlays().add(mCurrrentSelectionRedMarker);
}
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnDirectoryInteractionListener {
/** called when upresses "OK" button */
void onDirectoryPick(String selectedAbsolutePath, int queryTypeId);
}
private SelectedItemsHandler mSelectedItemsHandler = new SelectedItemsHandler();
/** Support for non-clustered selected items */
private class SelectedItemsHandler {
public void define(SelectedItems selectedItems) {
if ((selectedItems != null) && (this.mSelectedItems != selectedItems)) {
this.mSelectedItems = selectedItems;
reloadSelectionMarker();
}
}
private SelectedItems mSelectedItems = null;
/**
* To allow canceling of loading task. There are 0 or one tasks running at a time
*/
private SelectionMarkerLoaderTask mCurrentSelectionMarkerLoader = null;
private Drawable mBlueMarker;
/**
* to load markers for current selected items
*/
private class SelectionMarkerLoaderTask extends MarkerLoaderTaskWithRecycling<FotoMarker> {
public SelectionMarkerLoaderTask(HashMap<Integer, FotoMarker> oldItems) {
super(getActivity(), LocationMapFragment.this.mDebugPrefix + "-SelectionMarkerLoaderTask#" + (sInstanceCountFotoLoader++) + "-", mFotoMarkerRecycler,
oldItems, Global.maxSelectionMarkersInMap);
}
@NonNull
protected FotoMarker createNewMarker() {
return new FotoMarker();
}
// This is called when doInBackground() is finished
@Override
protected void onPostExecute(OverlayManager result) {
if (isCancelled()) {
onLoadFinishedSelection(null);
} else {
onLoadFinishedSelection(result);
recyleItems(false, mOldItems);
}
mOldItems.clear();
mOldItems = null;
int recyclerSize = mFotoMarkerRecycler.size();
if (mStatus != null) {
mStatus.append("\n\tRecycler: ").append(mRecyclerSizeBefore).append(",")
.append(mRecyclerSizeAfter).append(",").append(recyclerSize);
if (Global.debugEnabledSql) {
Log.w(Global.LOG_CONTEXT, mDebugPrefix + mStatus);
} else {
Log.i(Global.LOG_CONTEXT, mDebugPrefix + mStatus);
}
}
}
protected BitmapDrawable createIcon(String iconText) {
return (BitmapDrawable) mBlueMarker;
}
} // class SelectionMarkerLoaderTask
/** gets called when MarkerLoaderTask has finished.
*
* @param loadedBlueMarkers null if there was an error
*/
protected void onLoadFinishedSelection(OverlayManager loadedBlueMarkers) {
mCurrentSelectionMarkerLoader = null;
StringBuilder dbg = (Global.debugEnabledSql || Global.debugEnabledMap) ? new StringBuilder() : null;
if (dbg != null) {
int found = (loadedBlueMarkers != null) ? loadedBlueMarkers.size() : 0;
dbg.append(mDebugPrefix).append("onLoadFinishedSelection() markers created: ").append(found);
}
if ((loadedBlueMarkers != null) && (loadedBlueMarkers.size() > 0)) {
OverlayManager old = mFolderOverlayBlueSelectionMarker.setOverlayManager(loadedBlueMarkers);
if (old != null) {
if (dbg != null) {
dbg.append(mDebugPrefix).append(" previous : : ").append(old.size());
}
old.onDetach(mMapView);
old.clear();
}
mMapView.invalidate();
GeoRectangle box = new GeoRectangle();
for (Overlay item: loadedBlueMarkers) {
IGeoPoint pos = ((IconOverlay) item).getPosition();
box.inflate(pos.getLatitude(), pos.getLongitude());
}
// box 50% more on right,left,top,button. delta >= 0.01 degrees
box.increase(Global.mapMultiselectionBoxIncreaseByProcent, Global.mapMultiselectionBoxIncreaseMinSizeInDegrees);
zoomToBoundingBox("onLoadFinished Selection", box, NO_ZOOM);
}
if (dbg != null) {
Log.d(Global.LOG_CONTEXT, dbg.toString());
}
}
private void reloadSelectionMarker() {
if ((mFolderOverlayBlueSelectionMarker != null) &&
(mSelectedItems != null) && (!mSelectedItems.isEmpty())) {
if (mCurrentSelectionMarkerLoader != null) {
mCurrentSelectionMarkerLoader.cancel(false);
mCurrentSelectionMarkerLoader = null;
}
List<Overlay> oldItems = mFolderOverlayBlueSelectionMarker.getItems();
QueryParameter query = new QueryParameter(FotoSql.queryGps);
FotoSql.setWhereSelectionPks(query, mSelectedItems);
FotoSql.addWhereLatLonNotNull(query);
mCurrentSelectionMarkerLoader = new SelectionMarkerLoaderTask(createHashMap(oldItems));
mCurrentSelectionMarkerLoader.execute(query);
}