Fixes Nearby export: Pins not all around me (#5658)

* Fixed Grey empty screen at Upload wizard caption step after denying files permission

* Empty commit

* Fixed loop issue

* Created docs for earlier commits

* Fixed javadoc

* Fixed spaces

* Added added basic features to OSM Maps

* Added search location feature

* Added filter to Open Street Maps

* Fixed chipGroup in Open Street Maps

* Removed mapBox code

* Removed mapBox's code

* Reformat code

* Reformatted code

* Removed rotation feature to map

* Removed rotation files and Fixed Marker click problem

* Ignored failing tests

* Added voice input feature

* Fixed test cases

* Changed caption and description text

* Replaced mapbox to osmdroid in upload activity

* Fixed Unit Tests

* Made selected marker to be fixed on map

* Changed color of map marker

* Fixes #4345

* Delete app/src/main/res/values-yue-hant directory

* Added comment explaining the context

* Fixes #5651

* Deleted directory

* Changed query to 10 kilometers

* Fixed issue

---------

Co-authored-by: Nicolas Raoul <nicolas.raoul@gmail.com>

app/src/main/java/fr/free/nrw/commons/mwapi/OkHttpJsonApiClient.java

@@ -412,23 +412,8 @@ public class OkHttpJsonApiClient {
             "<!--Created by Wikimedia Commons Android app -->\n" +
             "<kml xmlns=\"http://www.opengis.net/kml/2.2\">\n" +
             "    <Document>";
-
+        List<PlaceBindings> placeBindings = runQuery(leftLatLng,
-        int increment = 1;
+            rightLatLng);
-        double longitude = leftLatLng.getLongitude();
-
-        while (longitude <= rightLatLng.getLongitude()) {
-            double NEXT_LONGITUDE =
-                (increment + longitude) >= 0.0 && (increment + longitude) <= 1.0 ? 0.0
-                    : increment + longitude;
-
-            double latitude = leftLatLng.getLatitude();
-
-            while (latitude <= rightLatLng.getLatitude()) {
-                double NEXT_LATITUDE =
-                    (increment + latitude) >= 0.0 && (increment + latitude) <= 1.0 ? 0.0
-                        : increment + latitude;
-                List<PlaceBindings> placeBindings = runQuery(new LatLng(latitude, longitude, 0),
-                    new LatLng(NEXT_LATITUDE, NEXT_LONGITUDE, 0));
         if (placeBindings != null) {
             for (PlaceBindings item : placeBindings) {
                 if (item.getItem() != null && item.getLabel() != null && item.getClas() != null) {
@@ -466,10 +451,6 @@ public class OkHttpJsonApiClient {
                 }
             }
         }
-                latitude += increment;
-            }
-            longitude += increment;
-        }
         kmlString = kmlString + "\n    </Document>\n" +
             "</kml>\n";
         return kmlString;
@@ -495,22 +476,7 @@ public class OkHttpJsonApiClient {
             " xsi:schemaLocation=\"http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd\">"
             + "\n<bounds minlat=\"$MIN_LATITUDE\" minlon=\"$MIN_LONGITUDE\" maxlat=\"$MAX_LATITUDE\" maxlon=\"$MAX_LONGITUDE\"/>";
 
-        int increment = 1;
+        List<PlaceBindings> placeBindings = runQuery(leftLatLng,rightLatLng);
-        double longitude = leftLatLng.getLongitude();
-
-        while (longitude <= rightLatLng.getLongitude()) {
-            double NEXT_LONGITUDE =
-                (increment + longitude) >= 0.0 && (increment + longitude) <= 1.0 ? 0.0
-                    : increment + longitude;
-
-            double latitude = leftLatLng.getLatitude();
-
-            while (latitude <= rightLatLng.getLatitude()) {
-                double NEXT_LATITUDE =
-                    (increment + latitude) >= 0.0 && (increment + latitude) <= 1.0 ? 0.0
-                        : increment + latitude;
-                List<PlaceBindings> placeBindings = runQuery(new LatLng(latitude, longitude, 0),
-                    new LatLng(NEXT_LATITUDE, NEXT_LONGITUDE, 0));
         if (placeBindings != null) {
             for (PlaceBindings item : placeBindings) {
                 if (item.getItem() != null && item.getLabel() != null && item.getClas() != null) {
@@ -545,10 +511,7 @@ public class OkHttpJsonApiClient {
                     }
                 }
             }
-                }
+
-                latitude += increment;
-            }
-            longitude += increment;
         }
         gpxString = gpxString + "\n</gpx>";
         return gpxString;

app/src/main/java/fr/free/nrw/commons/nearby/NearbyController.java

@@ -1,8 +1,10 @@
 package fr.free.nrw.commons.nearby;
 
+import static fr.free.nrw.commons.utils.LengthUtils.computeDistanceBetween;
+import static fr.free.nrw.commons.utils.LengthUtils.formatDistanceBetween;
+
 import androidx.annotation.MainThread;
 import androidx.annotation.Nullable;
-
 import fr.free.nrw.commons.BaseMarker;
 import fr.free.nrw.commons.MapController;
 import fr.free.nrw.commons.location.LatLng;
@@ -16,9 +18,6 @@ import java.util.Map;
 import javax.inject.Inject;
 import timber.log.Timber;
 
-import static fr.free.nrw.commons.utils.LengthUtils.computeDistanceBetween;
-import static fr.free.nrw.commons.utils.LengthUtils.formatDistanceBetween;
-
 public class NearbyController extends MapController {
 
     private static final int MAX_RESULTS = 1000;
@@ -118,12 +117,38 @@ public class NearbyController extends MapController {
         return nearbyPlacesInfo;
     }
 
-    public String getPlacesAsKML(LatLng leftLatLng, LatLng rightLatLng) throws Exception {
+    public String getPlacesAsKML(LatLng currentLocation) throws Exception {
-        return nearbyPlaces.getPlacesAsKML(leftLatLng, rightLatLng);
+        return nearbyPlaces.getPlacesAsKML(
+            calculateSouthWest(currentLocation.getLatitude(), currentLocation.getLongitude(), 10),
+            calculateNorthEast(currentLocation.getLatitude(), currentLocation.getLongitude(), 10)
+        );
     }
 
-    public String getPlacesAsGPX(LatLng leftLatLng, LatLng rightLatLng) throws Exception {
+    public String getPlacesAsGPX(LatLng currentLocation) throws Exception {
-        return nearbyPlaces.getPlacesAsGPX(leftLatLng, rightLatLng);
+        return nearbyPlaces.getPlacesAsGPX(
+            calculateSouthWest(currentLocation.getLatitude(), currentLocation.getLongitude(), 10),
+            calculateNorthEast(currentLocation.getLatitude(), currentLocation.getLongitude(), 10)
+        );
+    }
+
+    public static LatLng calculateNorthEast(double latitude, double longitude, double distance) {
+        double lat1 = Math.toRadians(latitude);
+        double deltaLat = distance * 0.008;
+        double deltaLon = distance / Math.cos(lat1)*0.008;
+        double lat2 = latitude + deltaLat;
+        double lon2 = longitude + deltaLon;
+
+        return new LatLng(lat2, lon2, 0);
+    }
+
+    public static LatLng calculateSouthWest(double latitude, double longitude, double distance) {
+        double lat1 = Math.toRadians(latitude);
+        double deltaLat = distance * 0.008;
+        double deltaLon = distance / Math.cos(lat1)*0.008;
+        double lat2 = latitude - deltaLat;
+        double lon2 = longitude - deltaLon;
+
+        return new LatLng(lat2, lon2, 0);
     }
 
     /**
@@ -267,8 +292,6 @@ public class NearbyController extends MapController {
     }
 
 
-
-
     /**
      * Updates makerLabelList item isBookmarked value
      *
@@ -280,7 +303,8 @@ public class NearbyController extends MapController {
         for (ListIterator<MarkerPlaceGroup> iter = markerLabelList.listIterator();
             iter.hasNext(); ) {
             MarkerPlaceGroup markerPlaceGroup = iter.next();
-            if (markerPlaceGroup.getPlace().getWikiDataEntityId().equals(place.getWikiDataEntityId())) {
+            if (markerPlaceGroup.getPlace().getWikiDataEntityId()
+                .equals(place.getWikiDataEntityId())) {
                 iter.set(new MarkerPlaceGroup(isBookmarked, place));
             }
         }

app/src/main/java/fr/free/nrw/commons/nearby/fragments/NearbyParentFragment.java

@@ -289,15 +289,9 @@ public class NearbyParentFragment extends CommonsDaggerSupportFragment
             @Override
             public boolean onMenuItemClick(@NonNull MenuItem item) {
                 try {
-                    IGeoPoint screenTopRight = binding.map.getProjection().fromPixels(binding.map.getWidth(), 0);
-                    IGeoPoint screenBottomLeft = binding.map.getProjection().fromPixels(0, binding.map.getHeight());
-                    fr.free.nrw.commons.location.LatLng screenTopRightLatLng = new fr.free.nrw.commons.location.LatLng(
-                        screenBottomLeft.getLatitude(), screenBottomLeft.getLongitude(), 0);
-                    fr.free.nrw.commons.location.LatLng screenBottomLeftLatLng = new fr.free.nrw.commons.location.LatLng(
-                        screenTopRight.getLatitude(), screenTopRight.getLongitude(), 0);
                     progressDialog.setTitle(getString(R.string.saving_gpx_file));
                     progressDialog.show();
-                    savePlacesAsGPX(screenTopRightLatLng, screenBottomLeftLatLng);
+                    savePlacesAsGPX();
                 } catch (Exception e) {
                     throw new RuntimeException(e);
                 }
@@ -309,15 +303,9 @@ public class NearbyParentFragment extends CommonsDaggerSupportFragment
             @Override
             public boolean onMenuItemClick(@NonNull MenuItem item) {
                 try {
-                    IGeoPoint screenTopRight = binding.map.getProjection().fromPixels(binding.map.getWidth(), 0);
-                    IGeoPoint screenBottomLeft = binding.map.getProjection().fromPixels(0, binding.map.getHeight());
-                    fr.free.nrw.commons.location.LatLng screenTopRightLatLng = new fr.free.nrw.commons.location.LatLng(
-                        screenBottomLeft.getLatitude(), screenBottomLeft.getLongitude(), 0);
-                    fr.free.nrw.commons.location.LatLng screenBottomLeftLatLng = new fr.free.nrw.commons.location.LatLng(
-                        screenTopRight.getLatitude(), screenTopRight.getLongitude(), 0);
                     progressDialog.setTitle(getString(R.string.saving_kml_file));
                     progressDialog.show();
-                    savePlacesAsKML(screenTopRightLatLng, screenBottomLeftLatLng);
+                    savePlacesAsKML();
                 } catch (Exception e) {
                     throw new RuntimeException(e);
                 }
@@ -1163,10 +1151,10 @@ public class NearbyParentFragment extends CommonsDaggerSupportFragment
         }
     }
 
-    private void savePlacesAsKML(LatLng latLng, LatLng nextlatLng) {
+    private void savePlacesAsKML() {
         final Observable<String> savePlacesObservable = Observable
             .fromCallable(() -> nearbyController
-                .getPlacesAsKML(latLng, nextlatLng));
+                .getPlacesAsKML(getMapFocus()));
         compositeDisposable.add(savePlacesObservable
             .subscribeOn(Schedulers.io())
             .observeOn(AndroidSchedulers.mainThread())
@@ -1197,10 +1185,10 @@ public class NearbyParentFragment extends CommonsDaggerSupportFragment
                 }));
     }
 
-    private void savePlacesAsGPX(LatLng latLng, LatLng nextlatLng) {
+    private void savePlacesAsGPX() {
         final Observable<String> savePlacesObservable = Observable
             .fromCallable(() -> nearbyController
-                .getPlacesAsGPX(latLng, nextlatLng));
+                .getPlacesAsGPX(getMapFocus()));
         compositeDisposable.add(savePlacesObservable
             .subscribeOn(Schedulers.io())
             .observeOn(AndroidSchedulers.mainThread())