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   1 /*
   2  * Copyright © 2013 Mike Beattie <mike@ethernal.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 package org.altusmetrum.AltosDroid;
  20
  21 import java.util.*;
  22
  23 import org.altusmetrum.altoslib_14.*;
  24
  25 import com.google.android.gms.maps.*;
  26 import com.google.android.gms.maps.model.*;
  27
  28 import android.graphics.Color;
  29 import android.graphics.*;
  30 import android.os.Bundle;
  31 import android.view.LayoutInflater;
  32 import android.view.View;
  33 import android.view.ViewGroup;
  34 import android.location.Location;
  35 import android.content.*;
  36
  37 class RocketOnline implements Comparable {
  38         Marker          marker;
  39         int             serial;
  40         long            last_packet;
  41         int             size;
  42
  43         void set_position(AltosLatLon position, long last_packet) {
  44                 marker.setPosition(new LatLng(position.lat, position.lon));
  45                 this.last_packet = last_packet;
  46         }
  47
  48         private Bitmap rocket_bitmap(Context context, String text) {
  49
  50                 /* From: http://mapicons.nicolasmollet.com/markers/industry/military/missile-2/
  51                  */
  52                 Bitmap orig_bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.rocket);
  53                 Bitmap bitmap = orig_bitmap.copy(Bitmap.Config.ARGB_8888, true);
  54
  55                 Canvas canvas = new Canvas(bitmap);
  56                 Paint paint = new Paint();
  57                 paint.setTextSize(40);
  58                 paint.setColor(0xff000000);
  59
  60                 Rect    bounds = new Rect();
  61                 paint.getTextBounds(text, 0, text.length(), bounds);
  62
  63                 int     width = bounds.right - bounds.left;
  64                 int     height = bounds.bottom - bounds.top;
  65
  66                 float x = bitmap.getWidth() / 2.0f - width / 2.0f;
  67                 float y = bitmap.getHeight() / 2.0f - height / 2.0f;
  68
  69                 size = bitmap.getWidth();
  70
  71                 canvas.drawText(text, 0, text.length(), x, y, paint);
  72                 return bitmap;
  73         }
  74
  75         public void remove() {
  76                 marker.remove();
  77         }
  78
  79         public int compareTo(Object o) {
  80                 RocketOnline other = (RocketOnline) o;
  81
  82                 long    diff = last_packet - other.last_packet;
  83
  84                 if (diff > 0)
  85                         return 1;
  86                 if (diff < 0)
  87                         return -1;
  88                 return 0;
  89         }
  90
  91         RocketOnline(Context context, int serial, GoogleMap map, double lat, double lon, long last_packet) {
  92                 this.serial = serial;
  93                 String name = String.format("%d", serial);
  94                 this.marker = map.addMarker(new MarkerOptions()
  95                                             .icon(BitmapDescriptorFactory.fromBitmap(rocket_bitmap(context, name)))
  96                                             .position(new LatLng(lat, lon))
  97                                             .visible(true));
  98                 this.last_packet = last_packet;
  99         }
 100 }
 101
 102 public class AltosMapOnline implements AltosDroidMapInterface, GoogleMap.OnMarkerClickListener, GoogleMap.OnMapClickListener, OnMapReadyCallback, AltosMapTypeListener {
 103         public AltosOnlineMapFragment mMapFragment;
 104         private GoogleMap mMap;
 105         private boolean mapLoaded = false;
 106         Context context;
 107
 108         private HashMap<Integer,RocketOnline> rockets = new HashMap<Integer,RocketOnline>();
 109         private Marker mPadMarker;
 110         private boolean pad_set;
 111         private Polyline mPolyline;
 112
 113         private double mapAccuracy = -1;
 114
 115         private AltosLatLon my_position = null;
 116         private AltosLatLon target_position = null;
 117
 118         private AltosDroid altos_droid;
 119
 120         public static class AltosOnlineMapFragment extends SupportMapFragment {
 121                 AltosMapOnline c;
 122                 View map_view;
 123
 124                 public AltosOnlineMapFragment(AltosMapOnline c) {
 125                         this.c = c;
 126                 }
 127
 128                 public AltosOnlineMapFragment() {
 129                 }
 130
 131                 @Override
 132                 public void onActivityCreated(Bundle savedInstanceState) {
 133                         super.onActivityCreated(savedInstanceState);
 134                         if (c != null)
 135                                 getMapAsync(c);
 136                 }
 137                 @Override
 138                 public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 139                         map_view = super.onCreateView(inflater, container, savedInstanceState);
 140                         return map_view;
 141                 }
 142                 @Override
 143                 public void onDestroyView() {
 144                         super.onDestroyView();
 145                         map_view = null;
 146                 }
 147                 public void set_visible(boolean visible) {
 148                         if (map_view == null)
 149                                 return;
 150                         if (visible)
 151                                 map_view.setVisibility(View.VISIBLE);
 152                         else
 153                                 map_view.setVisibility(View.GONE);
 154                 }
 155         }
 156
 157         public void onCreateView(AltosDroid altos_droid) {
 158                 this.altos_droid = altos_droid;
 159                 AltosPreferences.register_map_type_listener(this);
 160                 mMapFragment = new AltosOnlineMapFragment(this);
 161         }
 162
 163         public void onDestroyView() {
 164                 AltosPreferences.unregister_map_type_listener(this);
 165         }
 166
 167         private double pixel_distance(LatLng a, LatLng b) {
 168                 Projection projection = mMap.getProjection();
 169
 170                 Point   a_pt = projection.toScreenLocation(a);
 171                 Point   b_pt = projection.toScreenLocation(b);
 172
 173                 return Math.hypot((double) (a_pt.x - b_pt.x), (double) (a_pt.y - b_pt.y));
 174         }
 175
 176         private RocketOnline[] sorted_rockets() {
 177                 RocketOnline[]  rocket_array = rockets.values().toArray(new RocketOnline[0]);
 178
 179                 Arrays.sort(rocket_array);
 180                 return rocket_array;
 181         }
 182
 183         public void onMapClick(LatLng lat_lng) {
 184                 ArrayList<Integer>      near = new ArrayList<Integer>();
 185
 186                 for (RocketOnline rocket : sorted_rockets()) {
 187                         LatLng  pos = rocket.marker.getPosition();
 188
 189                         if (pos == null)
 190                                 continue;
 191
 192                         double distance = pixel_distance(lat_lng, pos);
 193                         if (distance < rocket.size * 2)
 194                                 near.add(rocket.serial);
 195                 }
 196
 197                 if (near.size() != 0)
 198                         altos_droid.touch_trackers(near.toArray(new Integer[0]));
 199         }
 200
 201         public boolean onMarkerClick(Marker marker) {
 202                 onMapClick(marker.getPosition());
 203                 return true;
 204         }
 205
 206         void
 207         position_permission() {
 208                 if (mMap != null)
 209                         mMap.setMyLocationEnabled(true);
 210         }
 211
 212         @Override
 213         public void onMapReady(GoogleMap googleMap) {
 214                 final int map_type = AltosPreferences.map_type();
 215                 mMap = googleMap;
 216                 if (mMap != null) {
 217                         map_type_changed(map_type);
 218                         if (altos_droid.have_location_permission)
 219                                 mMap.setMyLocationEnabled(true);
 220                         else
 221                                 altos_droid.tell_map_permission(this);
 222                         mMap.getUiSettings().setTiltGesturesEnabled(false);
 223                         mMap.getUiSettings().setZoomControlsEnabled(false);
 224                         mMap.setOnMarkerClickListener(this);
 225                         mMap.setOnMapClickListener(this);
 226
 227                         mPadMarker = mMap.addMarker(
 228                                         new MarkerOptions().icon(BitmapDescriptorFactory.fromResource(R.drawable.pad))
 229                                                            .position(new LatLng(0,0))
 230                                                            .visible(false)
 231                                         );
 232
 233                         mPolyline = mMap.addPolyline(
 234                                         new PolylineOptions().add(new LatLng(0,0), new LatLng(0,0))
 235                                                              .width(20)
 236                                                              .color(Color.BLUE)
 237                                                              .visible(false)
 238                                         );
 239
 240                         mapLoaded = true;
 241                 }
 242         }
 243
 244         public void center(double lat, double lon, double accuracy) {
 245                 if (mMap == null)
 246                         return;
 247
 248                 if (mapAccuracy < 0 || accuracy < mapAccuracy/10) {
 249                         mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(lat, lon),14));
 250                         mapAccuracy = accuracy;
 251                 }
 252         }
 253
 254         private void set_rocket(int serial, AltosState state) {
 255                 RocketOnline    rocket;
 256
 257                 if (state.gps == null || state.gps.lat == AltosLib.MISSING)
 258                         return;
 259
 260                 if (mMap == null)
 261                         return;
 262
 263                 if (rockets.containsKey(serial)) {
 264                         rocket = rockets.get(serial);
 265                         rocket.set_position(new AltosLatLon(state.gps.lat, state.gps.lon), state.received_time);
 266                 } else {
 267                         rocket = new RocketOnline(context,
 268                                                   serial,
 269                                                   mMap, state.gps.lat, state.gps.lon,
 270                                                   state.received_time);
 271                         rockets.put(serial, rocket);
 272                 }
 273         }
 274
 275         private void remove_rocket(int serial) {
 276                 RocketOnline rocket = rockets.get(serial);
 277                 rocket.remove();
 278                 rockets.remove(serial);
 279         }
 280
 281         public void set_visible(boolean visible) {
 282                 if (mMapFragment != null)
 283                         mMapFragment.set_visible(visible);
 284         }
 285
 286         public void show(TelemetryState telem_state, AltosState state, AltosGreatCircle from_receiver, Location receiver) {
 287
 288                 if (telem_state != null) {
 289                         for (int serial : rockets.keySet()) {
 290                                 if (!telem_state.containsKey(serial))
 291                                         remove_rocket(serial);
 292                         }
 293
 294                         for (int serial : telem_state.keySet()) {
 295                                 set_rocket(serial, telem_state.get(serial));
 296                         }
 297                 }
 298
 299                 if (state != null) {
 300                         if (mapLoaded) {
 301                                 if (!pad_set && state.pad_lat != AltosLib.MISSING) {
 302                                         pad_set = true;
 303                                         mPadMarker.setPosition(new LatLng(state.pad_lat, state.pad_lon));
 304                                         mPadMarker.setVisible(true);
 305                                 }
 306                         }
 307                         if (state.gps != null && state.gps.lat != AltosLib.MISSING) {
 308
 309                                 target_position = new AltosLatLon(state.gps.lat, state.gps.lon);
 310                                 if (state.gps.locked && state.gps.nsat >= 4)
 311                                         center (state.gps.lat, state.gps.lon, 10);
 312                         }
 313                 }
 314
 315                 if (receiver != null) {
 316                         double accuracy;
 317
 318                         if (receiver.hasAccuracy())
 319                                 accuracy = receiver.getAccuracy();
 320                         else
 321                                 accuracy = 1000;
 322
 323                         my_position = new AltosLatLon(receiver.getLatitude(), receiver.getLongitude());
 324                         center (my_position.lat, my_position.lon, accuracy);
 325                 }
 326
 327                 if (my_position != null && target_position != null && mPolyline != null) {
 328                         mPolyline.setPoints(Arrays.asList(new LatLng(my_position.lat, my_position.lon), new LatLng(target_position.lat, target_position.lon)));
 329                         mPolyline.setVisible(true);
 330                 }
 331
 332         }
 333
 334         public void map_type_changed(int map_type) {
 335                 if (mMap != null) {
 336                         if (map_type == AltosMap.maptype_hybrid)
 337                                 mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
 338                         else if (map_type == AltosMap.maptype_satellite)
 339                                 mMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
 340                         else if (map_type == AltosMap.maptype_terrain)
 341                                 mMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
 342                         else
 343                                 mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
 344                 }
 345         }
 346
 347         public AltosMapOnline(Context context) {
 348                 this.context = context;
 349         }
 350 }