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; 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_11.*;
  24
  25 import com.google.android.gms.maps.*;
  26 import com.google.android.gms.maps.model.*;
  27
  28 import android.app.Activity;
  29 import android.graphics.Color;
  30 import android.graphics.*;
  31 import android.os.Bundle;
  32 import android.support.v4.app.Fragment;
  33 //import android.support.v4.app.FragmentTransaction;
  34 import android.view.LayoutInflater;
  35 import android.view.View;
  36 import android.view.ViewGroup;
  37 import android.widget.TextView;
  38 import android.location.Location;
  39 import android.content.*;
  40
  41 class RocketOnline implements Comparable {
  42         Marker          marker;
  43         int             serial;
  44         long            last_packet;
  45         int             size;
  46
  47         void set_position(AltosLatLon position, long last_packet) {
  48                 marker.setPosition(new LatLng(position.lat, position.lon));
  49                 this.last_packet = last_packet;
  50         }
  51
  52         private Bitmap rocket_bitmap(Context context, String text) {
  53
  54                 /* From: http://mapicons.nicolasmollet.com/markers/industry/military/missile-2/
  55                  */
  56                 Bitmap orig_bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.rocket);
  57                 Bitmap bitmap = orig_bitmap.copy(Bitmap.Config.ARGB_8888, true);
  58
  59                 Canvas canvas = new Canvas(bitmap);
  60                 Paint paint = new Paint();
  61                 paint.setTextSize(40);
  62                 paint.setColor(0xff000000);
  63
  64                 Rect    bounds = new Rect();
  65                 paint.getTextBounds(text, 0, text.length(), bounds);
  66
  67                 int     width = bounds.right - bounds.left;
  68                 int     height = bounds.bottom - bounds.top;
  69
  70                 float x = bitmap.getWidth() / 2.0f - width / 2.0f;
  71                 float y = bitmap.getHeight() / 2.0f - height / 2.0f;
  72
  73                 size = bitmap.getWidth();
  74
  75                 canvas.drawText(text, 0, text.length(), x, y, paint);
  76                 return bitmap;
  77         }
  78
  79         public void remove() {
  80                 marker.remove();
  81         }
  82
  83         public int compareTo(Object o) {
  84                 RocketOnline other = (RocketOnline) o;
  85
  86                 long    diff = last_packet - other.last_packet;
  87
  88                 if (diff > 0)
  89                         return 1;
  90                 if (diff < 0)
  91                         return -1;
  92                 return 0;
  93         }
  94
  95         RocketOnline(Context context, int serial, GoogleMap map, double lat, double lon, long last_packet) {
  96                 this.serial = serial;
  97                 String name = String.format("%d", serial);
  98                 this.marker = map.addMarker(new MarkerOptions()
  99                                             .icon(BitmapDescriptorFactory.fromBitmap(rocket_bitmap(context, name)))
 100                                             .position(new LatLng(lat, lon))
 101                                             .visible(true));
 102                 this.last_packet = last_packet;
 103         }
 104 }
 105
 106 public class AltosMapOnline implements AltosDroidMapInterface, GoogleMap.OnMarkerClickListener, GoogleMap.OnMapClickListener, AltosMapTypeListener {
 107         public SupportMapFragment mMapFragment;
 108         private GoogleMap mMap;
 109         private boolean mapLoaded = false;
 110         Context context;
 111
 112         private HashMap<Integer,RocketOnline> rockets = new HashMap<Integer,RocketOnline>();
 113         private Marker mPadMarker;
 114         private boolean pad_set;
 115         private Polyline mPolyline;
 116
 117         private View map_view;
 118
 119         private double mapAccuracy = -1;
 120
 121         private AltosLatLon my_position = null;
 122         private AltosLatLon target_position = null;
 123
 124         private AltosDroid altos_droid;
 125
 126         public void onCreateView(AltosDroid altos_droid) {
 127                 this.altos_droid = altos_droid;
 128                 final int map_type = AltosPreferences.map_type();
 129                 AltosPreferences.register_map_type_listener(this);
 130                 mMapFragment = new SupportMapFragment() {
 131                         @Override
 132                         public void onActivityCreated(Bundle savedInstanceState) {
 133                                 super.onActivityCreated(savedInstanceState);
 134                                 setupMap(map_type);
 135                         }
 136                         @Override
 137                         public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 138                                 map_view = super.onCreateView(inflater, container, savedInstanceState);
 139                                 return map_view;
 140                         }
 141                         @Override
 142                         public void onDestroyView() {
 143                                 super.onDestroyView();
 144                                 map_view = null;
 145                         }
 146                 };
 147         }
 148
 149         public void onDestroyView() {
 150                 AltosPreferences.unregister_map_type_listener(this);
 151         }
 152
 153         private double pixel_distance(LatLng a, LatLng b) {
 154                 Projection projection = mMap.getProjection();
 155
 156                 Point   a_pt = projection.toScreenLocation(a);
 157                 Point   b_pt = projection.toScreenLocation(b);
 158
 159                 return Math.hypot((double) (a_pt.x - b_pt.x), (double) (a_pt.y - b_pt.y));
 160         }
 161
 162         private RocketOnline[] sorted_rockets() {
 163                 RocketOnline[]  rocket_array = rockets.values().toArray(new RocketOnline[0]);
 164
 165                 Arrays.sort(rocket_array);
 166                 return rocket_array;
 167         }
 168
 169         public void onMapClick(LatLng lat_lng) {
 170                 ArrayList<Integer>      near = new ArrayList<Integer>();
 171
 172                 for (RocketOnline rocket : sorted_rockets()) {
 173                         LatLng  pos = rocket.marker.getPosition();
 174
 175                         if (pos == null)
 176                                 continue;
 177
 178                         double distance = pixel_distance(lat_lng, pos);
 179                         if (distance < rocket.size * 2)
 180                                 near.add(rocket.serial);
 181                 }
 182
 183                 if (near.size() != 0)
 184                         altos_droid.touch_trackers(near.toArray(new Integer[0]));
 185         }
 186
 187         public boolean onMarkerClick(Marker marker) {
 188                 onMapClick(marker.getPosition());
 189                 return true;
 190         }
 191
 192         public void setupMap(int map_type) {
 193                 mMap = mMapFragment.getMap();
 194                 if (mMap != null) {
 195                         map_type_changed(map_type);
 196                         mMap.setMyLocationEnabled(true);
 197                         mMap.getUiSettings().setTiltGesturesEnabled(false);
 198                         mMap.getUiSettings().setZoomControlsEnabled(false);
 199                         mMap.setOnMarkerClickListener(this);
 200                         mMap.setOnMapClickListener(this);
 201
 202                         mPadMarker = mMap.addMarker(
 203                                         new MarkerOptions().icon(BitmapDescriptorFactory.fromResource(R.drawable.pad))
 204                                                            .position(new LatLng(0,0))
 205                                                            .visible(false)
 206                                         );
 207
 208                         mPolyline = mMap.addPolyline(
 209                                         new PolylineOptions().add(new LatLng(0,0), new LatLng(0,0))
 210                                                              .width(20)
 211                                                              .color(Color.BLUE)
 212                                                              .visible(false)
 213                                         );
 214
 215                         mapLoaded = true;
 216                 }
 217         }
 218
 219         public void center(double lat, double lon, double accuracy) {
 220                 if (mMap == null)
 221                         return;
 222
 223                 if (mapAccuracy < 0 || accuracy < mapAccuracy/10) {
 224                         mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(lat, lon),14));
 225                         mapAccuracy = accuracy;
 226                 }
 227         }
 228
 229         private void set_rocket(int serial, AltosState state) {
 230                 RocketOnline    rocket;
 231
 232                 if (state.gps == null || state.gps.lat == AltosLib.MISSING)
 233                         return;
 234
 235                 if (mMap == null)
 236                         return;
 237
 238                 if (rockets.containsKey(serial)) {
 239                         rocket = rockets.get(serial);
 240                         rocket.set_position(new AltosLatLon(state.gps.lat, state.gps.lon), state.received_time);
 241                 } else {
 242                         rocket = new RocketOnline(context,
 243                                                   serial,
 244                                                   mMap, state.gps.lat, state.gps.lon,
 245                                                   state.received_time);
 246                         rockets.put(serial, rocket);
 247                 }
 248         }
 249
 250         private void remove_rocket(int serial) {
 251                 RocketOnline rocket = rockets.get(serial);
 252                 rocket.remove();
 253                 rockets.remove(serial);
 254         }
 255
 256         public void set_visible(boolean visible) {
 257                 if (map_view == null)
 258                         return;
 259                 if (visible)
 260                         map_view.setVisibility(View.VISIBLE);
 261                 else
 262                         map_view.setVisibility(View.GONE);
 263         }
 264
 265         public void show(TelemetryState telem_state, AltosState state, AltosGreatCircle from_receiver, Location receiver) {
 266
 267                 if (telem_state != null) {
 268                         for (int serial : rockets.keySet()) {
 269                                 if (!telem_state.states.containsKey(serial))
 270                                         remove_rocket(serial);
 271                         }
 272
 273                         for (int serial : telem_state.states.keySet()) {
 274                                 set_rocket(serial, telem_state.states.get(serial));
 275                         }
 276                 }
 277
 278                 if (state != null) {
 279                         if (mapLoaded) {
 280                                 if (!pad_set && state.pad_lat != AltosLib.MISSING) {
 281                                         pad_set = true;
 282                                         mPadMarker.setPosition(new LatLng(state.pad_lat, state.pad_lon));
 283                                         mPadMarker.setVisible(true);
 284                                 }
 285                         }
 286                         if (state.gps != null && state.gps.lat != AltosLib.MISSING) {
 287
 288                                 target_position = new AltosLatLon(state.gps.lat, state.gps.lon);
 289                                 if (state.gps.locked && state.gps.nsat >= 4)
 290                                         center (state.gps.lat, state.gps.lon, 10);
 291                         }
 292                 }
 293
 294                 if (receiver != null) {
 295                         double accuracy;
 296
 297                         if (receiver.hasAccuracy())
 298                                 accuracy = receiver.getAccuracy();
 299                         else
 300                                 accuracy = 1000;
 301
 302                         my_position = new AltosLatLon(receiver.getLatitude(), receiver.getLongitude());
 303                         center (my_position.lat, my_position.lon, accuracy);
 304                 }
 305
 306                 if (my_position != null && target_position != null && mPolyline != null) {
 307                         mPolyline.setPoints(Arrays.asList(new LatLng(my_position.lat, my_position.lon), new LatLng(target_position.lat, target_position.lon)));
 308                         mPolyline.setVisible(true);
 309                 }
 310
 311         }
 312
 313         public void map_type_changed(int map_type) {
 314                 if (mMap != null) {
 315                         if (map_type == AltosMap.maptype_hybrid)
 316                                 mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
 317                         else if (map_type == AltosMap.maptype_satellite)
 318                                 mMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
 319                         else if (map_type == AltosMap.maptype_terrain)
 320                                 mMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
 321                         else
 322                                 mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
 323                 }
 324         }
 325
 326         public AltosMapOnline(Context context) {
 327                 this.context = context;
 328         }
 329 }