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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_13.*;
  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, AltosMapTypeListener {
 103         public SupportMapFragment 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 View map_view;
 114
 115         private double mapAccuracy = -1;
 116
 117         private AltosLatLon my_position = null;
 118         private AltosLatLon target_position = null;
 119
 120         private AltosDroid altos_droid;
 121
 122         public void onCreateView(AltosDroid altos_droid) {
 123                 this.altos_droid = altos_droid;
 124                 final int map_type = AltosPreferences.map_type();
 125                 AltosPreferences.register_map_type_listener(this);
 126                 mMapFragment = new SupportMapFragment() {
 127                         @Override
 128                         public void onActivityCreated(Bundle savedInstanceState) {
 129                                 super.onActivityCreated(savedInstanceState);
 130                                 setupMap(map_type);
 131                         }
 132                         @Override
 133                         public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 134                                 map_view = super.onCreateView(inflater, container, savedInstanceState);
 135                                 return map_view;
 136                         }
 137                         @Override
 138                         public void onDestroyView() {
 139                                 super.onDestroyView();
 140                                 map_view = null;
 141                         }
 142                 };
 143         }
 144
 145         public void onDestroyView() {
 146                 AltosPreferences.unregister_map_type_listener(this);
 147         }
 148
 149         private double pixel_distance(LatLng a, LatLng b) {
 150                 Projection projection = mMap.getProjection();
 151
 152                 Point   a_pt = projection.toScreenLocation(a);
 153                 Point   b_pt = projection.toScreenLocation(b);
 154
 155                 return Math.hypot((double) (a_pt.x - b_pt.x), (double) (a_pt.y - b_pt.y));
 156         }
 157
 158         private RocketOnline[] sorted_rockets() {
 159                 RocketOnline[]  rocket_array = rockets.values().toArray(new RocketOnline[0]);
 160
 161                 Arrays.sort(rocket_array);
 162                 return rocket_array;
 163         }
 164
 165         public void onMapClick(LatLng lat_lng) {
 166                 ArrayList<Integer>      near = new ArrayList<Integer>();
 167
 168                 for (RocketOnline rocket : sorted_rockets()) {
 169                         LatLng  pos = rocket.marker.getPosition();
 170
 171                         if (pos == null)
 172                                 continue;
 173
 174                         double distance = pixel_distance(lat_lng, pos);
 175                         if (distance < rocket.size * 2)
 176                                 near.add(rocket.serial);
 177                 }
 178
 179                 if (near.size() != 0)
 180                         altos_droid.touch_trackers(near.toArray(new Integer[0]));
 181         }
 182
 183         public boolean onMarkerClick(Marker marker) {
 184                 onMapClick(marker.getPosition());
 185                 return true;
 186         }
 187
 188         public void setupMap(int map_type) {
 189                 mMap = mMapFragment.getMap();
 190                 if (mMap != null) {
 191                         map_type_changed(map_type);
 192                         mMap.setMyLocationEnabled(true);
 193                         mMap.getUiSettings().setTiltGesturesEnabled(false);
 194                         mMap.getUiSettings().setZoomControlsEnabled(false);
 195                         mMap.setOnMarkerClickListener(this);
 196                         mMap.setOnMapClickListener(this);
 197
 198                         mPadMarker = mMap.addMarker(
 199                                         new MarkerOptions().icon(BitmapDescriptorFactory.fromResource(R.drawable.pad))
 200                                                            .position(new LatLng(0,0))
 201                                                            .visible(false)
 202                                         );
 203
 204                         mPolyline = mMap.addPolyline(
 205                                         new PolylineOptions().add(new LatLng(0,0), new LatLng(0,0))
 206                                                              .width(20)
 207                                                              .color(Color.BLUE)
 208                                                              .visible(false)
 209                                         );
 210
 211                         mapLoaded = true;
 212                 }
 213         }
 214
 215         public void center(double lat, double lon, double accuracy) {
 216                 if (mMap == null)
 217                         return;
 218
 219                 if (mapAccuracy < 0 || accuracy < mapAccuracy/10) {
 220                         mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(lat, lon),14));
 221                         mapAccuracy = accuracy;
 222                 }
 223         }
 224
 225         private void set_rocket(int serial, AltosState state) {
 226                 RocketOnline    rocket;
 227
 228                 if (state.gps == null || state.gps.lat == AltosLib.MISSING)
 229                         return;
 230
 231                 if (mMap == null)
 232                         return;
 233
 234                 if (rockets.containsKey(serial)) {
 235                         rocket = rockets.get(serial);
 236                         rocket.set_position(new AltosLatLon(state.gps.lat, state.gps.lon), state.received_time);
 237                 } else {
 238                         rocket = new RocketOnline(context,
 239                                                   serial,
 240                                                   mMap, state.gps.lat, state.gps.lon,
 241                                                   state.received_time);
 242                         rockets.put(serial, rocket);
 243                 }
 244         }
 245
 246         private void remove_rocket(int serial) {
 247                 RocketOnline rocket = rockets.get(serial);
 248                 rocket.remove();
 249                 rockets.remove(serial);
 250         }
 251
 252         public void set_visible(boolean visible) {
 253                 if (map_view == null)
 254                         return;
 255                 if (visible)
 256                         map_view.setVisibility(View.VISIBLE);
 257                 else
 258                         map_view.setVisibility(View.GONE);
 259         }
 260
 261         public void show(TelemetryState telem_state, AltosState state, AltosGreatCircle from_receiver, Location receiver) {
 262
 263                 if (telem_state != null) {
 264                         for (int serial : rockets.keySet()) {
 265                                 if (!telem_state.states.containsKey(serial))
 266                                         remove_rocket(serial);
 267                         }
 268
 269                         for (int serial : telem_state.states.keySet()) {
 270                                 set_rocket(serial, telem_state.states.get(serial));
 271                         }
 272                 }
 273
 274                 if (state != null) {
 275                         if (mapLoaded) {
 276                                 if (!pad_set && state.pad_lat != AltosLib.MISSING) {
 277                                         pad_set = true;
 278                                         mPadMarker.setPosition(new LatLng(state.pad_lat, state.pad_lon));
 279                                         mPadMarker.setVisible(true);
 280                                 }
 281                         }
 282                         if (state.gps != null && state.gps.lat != AltosLib.MISSING) {
 283
 284                                 target_position = new AltosLatLon(state.gps.lat, state.gps.lon);
 285                                 if (state.gps.locked && state.gps.nsat >= 4)
 286                                         center (state.gps.lat, state.gps.lon, 10);
 287                         }
 288                 }
 289
 290                 if (receiver != null) {
 291                         double accuracy;
 292
 293                         if (receiver.hasAccuracy())
 294                                 accuracy = receiver.getAccuracy();
 295                         else
 296                                 accuracy = 1000;
 297
 298                         my_position = new AltosLatLon(receiver.getLatitude(), receiver.getLongitude());
 299                         center (my_position.lat, my_position.lon, accuracy);
 300                 }
 301
 302                 if (my_position != null && target_position != null && mPolyline != null) {
 303                         mPolyline.setPoints(Arrays.asList(new LatLng(my_position.lat, my_position.lon), new LatLng(target_position.lat, target_position.lon)));
 304                         mPolyline.setVisible(true);
 305                 }
 306
 307         }
 308
 309         public void map_type_changed(int map_type) {
 310                 if (mMap != null) {
 311                         if (map_type == AltosMap.maptype_hybrid)
 312                                 mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
 313                         else if (map_type == AltosMap.maptype_satellite)
 314                                 mMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
 315                         else if (map_type == AltosMap.maptype_terrain)
 316                                 mMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
 317                         else
 318                                 mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
 319                 }
 320         }
 321
 322         public AltosMapOnline(Context context) {
 323                 this.context = context;
 324         }
 325 }