git.gag.com Git - fw/altos/blob - altosdroid/src/org/altusmetrum/AltosDroid/AltosMapOnline.java

   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; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package org.altusmetrum.AltosDroid;
  19
  20 import java.util.*;
  21
  22 import org.altusmetrum.altoslib_11.*;
  23
  24 import com.google.android.gms.maps.*;
  25 import com.google.android.gms.maps.model.*;
  26
  27 import android.app.Activity;
  28 import android.graphics.Color;
  29 import android.graphics.*;
  30 import android.os.Bundle;
  31 import android.support.v4.app.Fragment;
  32 //import android.support.v4.app.FragmentTransaction;
  33 import android.view.LayoutInflater;
  34 import android.view.View;
  35 import android.view.ViewGroup;
  36 import android.widget.TextView;
  37 import android.location.Location;
  38 import android.content.*;
  39
  40 class RocketOnline implements Comparable {
  41         Marker          marker;
  42         int             serial;
  43         long            last_packet;
  44         int             size;
  45
  46         void set_position(AltosLatLon position, long last_packet) {
  47                 marker.setPosition(new LatLng(position.lat, position.lon));
  48                 this.last_packet = last_packet;
  49         }
  50
  51         private Bitmap rocket_bitmap(Context context, String text) {
  52
  53                 /* From: http://mapicons.nicolasmollet.com/markers/industry/military/missile-2/
  54                  */
  55                 Bitmap orig_bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.rocket);
  56                 Bitmap bitmap = orig_bitmap.copy(Bitmap.Config.ARGB_8888, true);
  57
  58                 Canvas canvas = new Canvas(bitmap);
  59                 Paint paint = new Paint();
  60                 paint.setTextSize(40);
  61                 paint.setColor(0xff000000);
  62
  63                 Rect    bounds = new Rect();
  64                 paint.getTextBounds(text, 0, text.length(), bounds);
  65
  66                 int     width = bounds.right - bounds.left;
  67                 int     height = bounds.bottom - bounds.top;
  68
  69                 float x = bitmap.getWidth() / 2.0f - width / 2.0f;
  70                 float y = bitmap.getHeight() / 2.0f - height / 2.0f;
  71
  72                 size = bitmap.getWidth();
  73
  74                 canvas.drawText(text, 0, text.length(), x, y, paint);
  75                 return bitmap;
  76         }
  77
  78         public void remove() {
  79                 marker.remove();
  80         }
  81
  82         public int compareTo(Object o) {
  83                 RocketOnline other = (RocketOnline) o;
  84
  85                 long    diff = last_packet - other.last_packet;
  86
  87                 if (diff > 0)
  88                         return 1;
  89                 if (diff < 0)
  90                         return -1;
  91                 return 0;
  92         }
  93
  94         RocketOnline(Context context, int serial, GoogleMap map, double lat, double lon, long last_packet) {
  95                 this.serial = serial;
  96                 String name = String.format("%d", serial);
  97                 this.marker = map.addMarker(new MarkerOptions()
  98                                             .icon(BitmapDescriptorFactory.fromBitmap(rocket_bitmap(context, name)))
  99                                             .position(new LatLng(lat, lon))
 100                                             .visible(true));
 101                 this.last_packet = last_packet;
 102         }
 103 }
 104
 105 public class AltosMapOnline implements AltosDroidMapInterface, GoogleMap.OnMarkerClickListener, GoogleMap.OnMapClickListener, AltosMapTypeListener {
 106         public SupportMapFragment mMapFragment;
 107         private GoogleMap mMap;
 108         private boolean mapLoaded = false;
 109         Context context;
 110
 111         private HashMap<Integer,RocketOnline> rockets = new HashMap<Integer,RocketOnline>();
 112         private Marker mPadMarker;
 113         private boolean pad_set;
 114         private Polyline mPolyline;
 115
 116         private View map_view;
 117
 118         private double mapAccuracy = -1;
 119
 120         private AltosLatLon my_position = null;
 121         private AltosLatLon target_position = null;
 122
 123         private AltosDroid altos_droid;
 124
 125         public void onCreateView(AltosDroid altos_droid) {
 126                 this.altos_droid = altos_droid;
 127                 final int map_type = AltosPreferences.map_type();
 128                 AltosPreferences.register_map_type_listener(this);
 129                 mMapFragment = new SupportMapFragment() {
 130                         @Override
 131                         public void onActivityCreated(Bundle savedInstanceState) {
 132                                 super.onActivityCreated(savedInstanceState);
 133                                 setupMap(map_type);
 134                         }
 135                         @Override
 136                         public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 137                                 map_view = super.onCreateView(inflater, container, savedInstanceState);
 138                                 return map_view;
 139                         }
 140                         @Override
 141                         public void onDestroyView() {
 142                                 super.onDestroyView();
 143                                 map_view = null;
 144                         }
 145                 };
 146         }
 147
 148         public void onDestroyView() {
 149                 AltosPreferences.unregister_map_type_listener(this);
 150         }
 151
 152         private double pixel_distance(LatLng a, LatLng b) {
 153                 Projection projection = mMap.getProjection();
 154
 155                 Point   a_pt = projection.toScreenLocation(a);
 156                 Point   b_pt = projection.toScreenLocation(b);
 157
 158                 return Math.hypot((double) (a_pt.x - b_pt.x), (double) (a_pt.y - b_pt.y));
 159         }
 160
 161         private RocketOnline[] sorted_rockets() {
 162                 RocketOnline[]  rocket_array = rockets.values().toArray(new RocketOnline[0]);
 163
 164                 Arrays.sort(rocket_array);
 165                 return rocket_array;
 166         }
 167
 168         public void onMapClick(LatLng lat_lng) {
 169                 ArrayList<Integer>      near = new ArrayList<Integer>();
 170
 171                 for (RocketOnline rocket : sorted_rockets()) {
 172                         LatLng  pos = rocket.marker.getPosition();
 173
 174                         if (pos == null)
 175                                 continue;
 176
 177                         double distance = pixel_distance(lat_lng, pos);
 178                         if (distance < rocket.size * 2)
 179                                 near.add(rocket.serial);
 180                 }
 181
 182                 if (near.size() != 0)
 183                         altos_droid.touch_trackers(near.toArray(new Integer[0]));
 184         }
 185
 186         public boolean onMarkerClick(Marker marker) {
 187                 onMapClick(marker.getPosition());
 188                 return true;
 189         }
 190
 191         public void setupMap(int map_type) {
 192                 mMap = mMapFragment.getMap();
 193                 if (mMap != null) {
 194                         map_type_changed(map_type);
 195                         mMap.setMyLocationEnabled(true);
 196                         mMap.getUiSettings().setTiltGesturesEnabled(false);
 197                         mMap.getUiSettings().setZoomControlsEnabled(false);
 198                         mMap.setOnMarkerClickListener(this);
 199                         mMap.setOnMapClickListener(this);
 200
 201                         mPadMarker = mMap.addMarker(
 202                                         new MarkerOptions().icon(BitmapDescriptorFactory.fromResource(R.drawable.pad))
 203                                                            .position(new LatLng(0,0))
 204                                                            .visible(false)
 205                                         );
 206
 207                         mPolyline = mMap.addPolyline(
 208                                         new PolylineOptions().add(new LatLng(0,0), new LatLng(0,0))
 209                                                              .width(20)
 210                                                              .color(Color.BLUE)
 211                                                              .visible(false)
 212                                         );
 213
 214                         mapLoaded = true;
 215                 }
 216         }
 217
 218         public void center(double lat, double lon, double accuracy) {
 219                 if (mMap == null)
 220                         return;
 221
 222                 if (mapAccuracy < 0 || accuracy < mapAccuracy/10) {
 223                         mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(lat, lon),14));
 224                         mapAccuracy = accuracy;
 225                 }
 226         }
 227
 228         private void set_rocket(int serial, AltosState state) {
 229                 RocketOnline    rocket;
 230
 231                 if (state.gps == null || state.gps.lat == AltosLib.MISSING)
 232                         return;
 233
 234                 if (mMap == null)
 235                         return;
 236
 237                 if (rockets.containsKey(serial)) {
 238                         rocket = rockets.get(serial);
 239                         rocket.set_position(new AltosLatLon(state.gps.lat, state.gps.lon), state.received_time);
 240                 } else {
 241                         rocket = new RocketOnline(context,
 242                                                   serial,
 243                                                   mMap, state.gps.lat, state.gps.lon,
 244                                                   state.received_time);
 245                         rockets.put(serial, rocket);
 246                 }
 247         }
 248
 249         private void remove_rocket(int serial) {
 250                 RocketOnline rocket = rockets.get(serial);
 251                 rocket.remove();
 252                 rockets.remove(serial);
 253         }
 254
 255         public void set_visible(boolean visible) {
 256                 if (map_view == null)
 257                         return;
 258                 if (visible)
 259                         map_view.setVisibility(View.VISIBLE);
 260                 else
 261                         map_view.setVisibility(View.GONE);
 262         }
 263
 264         public void show(TelemetryState telem_state, AltosState state, AltosGreatCircle from_receiver, Location receiver) {
 265
 266                 if (telem_state != null) {
 267                         for (int serial : rockets.keySet()) {
 268                                 if (!telem_state.states.containsKey(serial))
 269                                         remove_rocket(serial);
 270                         }
 271
 272                         for (int serial : telem_state.states.keySet()) {
 273                                 set_rocket(serial, telem_state.states.get(serial));
 274                         }
 275                 }
 276
 277                 if (state != null) {
 278                         if (mapLoaded) {
 279                                 if (!pad_set && state.pad_lat != AltosLib.MISSING) {
 280                                         pad_set = true;
 281                                         mPadMarker.setPosition(new LatLng(state.pad_lat, state.pad_lon));
 282                                         mPadMarker.setVisible(true);
 283                                 }
 284                         }
 285                         if (state.gps != null && state.gps.lat != AltosLib.MISSING) {
 286
 287                                 target_position = new AltosLatLon(state.gps.lat, state.gps.lon);
 288                                 if (state.gps.locked && state.gps.nsat >= 4)
 289                                         center (state.gps.lat, state.gps.lon, 10);
 290                         }
 291                 }
 292
 293                 if (receiver != null) {
 294                         double accuracy;
 295
 296                         if (receiver.hasAccuracy())
 297                                 accuracy = receiver.getAccuracy();
 298                         else
 299                                 accuracy = 1000;
 300
 301                         my_position = new AltosLatLon(receiver.getLatitude(), receiver.getLongitude());
 302                         center (my_position.lat, my_position.lon, accuracy);
 303                 }
 304
 305                 if (my_position != null && target_position != null && mPolyline != null) {
 306                         mPolyline.setPoints(Arrays.asList(new LatLng(my_position.lat, my_position.lon), new LatLng(target_position.lat, target_position.lon)));
 307                         mPolyline.setVisible(true);
 308                 }
 309
 310         }
 311
 312         public void map_type_changed(int map_type) {
 313                 if (mMap != null) {
 314                         if (map_type == AltosMap.maptype_hybrid)
 315                                 mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
 316                         else if (map_type == AltosMap.maptype_satellite)
 317                                 mMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
 318                         else if (map_type == AltosMap.maptype_terrain)
 319                                 mMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
 320                         else
 321                                 mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
 322                 }
 323         }
 324
 325         public AltosMapOnline(Context context) {
 326                 this.context = context;
 327         }
 328 }