source: other-projects/tipple-android/tipple-ar/tipple-standalone-hpg/src/org/greenstone/android/tipple/base/TippleLocationListener.java@ 26528

Last change on this file since 26528 was 26528, checked in by davidb, 11 years ago

Code developed by the Tipple-AR Smoke and Mirrors team, based on the main tipple trunk
File size: 10.2 KB
Line 
1package org.greenstone.android.tipple.base;
2
3import java.io.File;
4import java.text.DecimalFormat;
5import java.util.ArrayList;
6import java.util.HashMap;
7import java.util.HashSet;
8import java.util.Set;
9
10import org.greenstone.android.tipple.R;
11import org.greenstone.android.tipple.base.TipLocation;
12
13import org.mapsforge.android.maps.ArrayItemizedMarkerOverlay;
14
15import org.mapsforge.core.GeoPoint;
16import org.mapsforge.android.maps.CirclesOverlay;
17import org.mapsforge.android.maps.MapController;
18import org.mapsforge.android.maps.MapView;
19import org.mapsforge.android.maps.OverlayMarkerItem;
20import org.mapsforge.android.maps.OverlayTextAudioItem;
21import org.mapsforge.android.maps.Projection;
22import org.mapsforge.android.maps.overlay.ArrayCircleOverlay;
23import org.mapsforge.android.maps.overlay.CircleOverlay;
24import org.mapsforge.android.maps.overlay.OverlayCircle;
25
26import android.app.Activity;
27import android.content.Context;
28import android.graphics.Color;
29import android.graphics.Paint;
30import android.graphics.Path;
31import android.graphics.Point;
32import android.graphics.drawable.Drawable;
33import android.location.Criteria;
34import android.location.Location;
35import android.location.LocationListener;
36import android.media.MediaPlayer;
37import android.os.Bundle;
38import android.os.Vibrator;
39
40import android.widget.TextView;
41
42public class TippleLocationListener implements LocationListener {
43 public Location lastKnownLocation = null;
44
45 protected ArrayList<TipLocation> locations_;
46
47 protected Activity activity_;
48 protected MapView map_view_;
49 protected TextView text_view_;
50 protected TipLocationManager tip_location_manager_;
51
52 protected OverlayCircle my_pos_;
53
54 protected MapController map_controller_;
55 protected ArrayCircleOverlay here_overlay_;
56 protected ArrayItemizedMarkerOverlay highlight_marker_overlay_;
57
58 protected Vibrator vibrator_;
59
60 protected Set<TipLocation> curr_locations_;
61 protected Set<TipLocation> prev_locations_;
62 HashMap<Integer, OverlayMarkerItem> highlight_marker_hash_;
63
64 public TippleLocationListener(Activity activity, MapView map_view, TextView text_view, TipLocationManager place_location_manager,
65 ArrayList<TipLocation> locations) {
66 activity_ = activity;
67 map_view_ = map_view;
68 text_view_ = text_view;
69
70 tip_location_manager_ = place_location_manager;
71 locations_ = locations;
72
73 // location aware
74 Paint circleFillPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
75 circleFillPaint.setStyle(Paint.Style.FILL);
76 circleFillPaint.setColor(Color.GREEN);
77 circleFillPaint.setAlpha(64);
78
79 Paint circleOutlinePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
80 circleOutlinePaint.setStyle(Paint.Style.STROKE);
81 circleOutlinePaint.setColor(Color.GREEN);
82 circleOutlinePaint.setAlpha(128);
83 circleOutlinePaint.setStrokeWidth(3);
84 // here_overlay_ = new CircleOverlay<OverlayCircle>(circleFillPaint, circleOutlinePaint);
85 here_overlay_ = new ArrayCircleOverlay(circleFillPaint, circleOutlinePaint);
86
87 map_view_.getOverlays().add(here_overlay_);
88
89 Drawable highlightMarker = activity_.getResources().getDrawable(R.drawable.markerhighlight);
90 highlight_marker_overlay_ = new ArrayItemizedMarkerOverlay(highlightMarker, activity);
91 map_view_.getOverlays().add(highlight_marker_overlay_);
92
93 vibrator_ = (Vibrator) activity.getSystemService(Context.VIBRATOR_SERVICE);
94
95 curr_locations_ = new HashSet<TipLocation>();
96 prev_locations_ = new HashSet<TipLocation>();
97 highlight_marker_hash_ = new HashMap<Integer, OverlayMarkerItem>();
98
99 // -------------
100
101 }
102
103 boolean checking_location_ = false;
104
105 synchronized protected boolean getLock() {
106 if (!checking_location_) {
107 checking_location_ = true;
108 }
109
110 return checking_location_;
111 }
112
113 synchronized protected void freeLock() {
114 checking_location_ = false;
115 }
116
117 protected double pointDistance(Point place_point, Point here_point) {
118 double delta_x = place_point.x - here_point.x;
119 double delta_y = place_point.y - here_point.y;
120 double pixel_distance = Math.sqrt((delta_x * delta_x) + (delta_y * delta_y));
121
122 return pixel_distance;
123 }
124
125 Point lastLoggedPoint_ = null;
126
127 protected void updateActiveLocations(Location loc) {
128
129 // Find out if the current GPS location lies within the boundaries
130 // of any of the tour locations
131 Projection projection = map_view_.getProjection();
132 // byte zoom_level = map_view_.getZoomLevel();
133 byte zoom_level = map_view_.getMapZoomControls().getZoomLevelMax();
134
135 // byte zoom_level = 10; // work at a reasonable level of scale
136
137 float in_out_gap_meters = 3.0f;
138 float in_out_gap_pixels = projection.metersToPixels(in_out_gap_meters, zoom_level);
139
140 double here_latitude = loc.getLatitude();
141 double here_longitude = loc.getLongitude();
142 GeoPoint here_geopoint = new GeoPoint(here_latitude, here_longitude);
143 Point here_point = projection.toPoint(here_geopoint, null, zoom_level);
144
145 if(ARActivity.directionss){
146 ArDirection.setGPSchanges(here_geopoint);// current coordnts to find the bearing
147 }
148
149 if (lastLoggedPoint_ == null) {
150 lastLoggedPoint_ = here_point;
151 TippleActivity.log.optMessage("GPS Location Reading");
152 } else {
153 float far_enough_meters = 3.0f; // 3 meters
154 float far_enough_pixels = projection.metersToPixels(far_enough_meters, zoom_level);
155 if (pointDistance(here_point, lastLoggedPoint_) > far_enough_pixels) {
156 TippleActivity.log.optMessage("GPS Location Reading");
157 }
158 }
159
160 for (int i = 0; i < locations_.size(); i++) {
161
162 TipLocation place = locations_.get(i);
163
164 double place_latitude = place.getLatitude();
165 double place_longitude = place.getLongitude();
166 double radius_meters = place.getRadiusKM() * 1000.0;
167
168 GeoPoint place_geopoint = new GeoPoint(place_latitude, place_longitude);
169 Point place_point = projection.toPoint(place_geopoint, null, zoom_level);
170
171 float radius_pixel_distance = projection.metersToPixels((float) radius_meters, zoom_level);
172
173 double delta_x = place_point.x - here_point.x;
174 double delta_y = place_point.y - here_point.y;
175 double pixel_distance = Math.sqrt((delta_x * delta_x) + (delta_y * delta_y));
176
177 double outside_pixel_distance = radius_pixel_distance + in_out_gap_pixels;
178 double inside_pixel_distance = radius_pixel_distance;
179
180 if (pixel_distance <= inside_pixel_distance) {
181
182 if (!curr_locations_.contains(place)) {
183 // User has entered new location on tour
184
185 if(ARActivity.directionss){
186 ArDirection.setGPSpidouble(place_geopoint);//place_longitude, place_latitude);
187 }
188
189 curr_locations_.add(place);
190
191 vibrator_.vibrate(1000);
192 Bundle bundle = new Bundle();
193 bundle.putString("placeName", place.getTitle());
194
195 boolean visited_previously = prev_locations_.contains(place);
196 tip_location_manager_.textToSpeechToLocation(place, visited_previously);
197
198 OverlayTextAudioItem here_marker_item = (OverlayTextAudioItem) TipLocationManager.itemizedMarkerOverlayArrayList.get(i);
199
200 GeoPoint dm_geopoint = here_marker_item.getPoint();
201 String title = here_marker_item.getTitle();
202
203 // itemized_overlay.onTap(i);
204
205 OverlayMarkerItem highlight_marker_item = new OverlayMarkerItem(dm_geopoint, title);
206 highlight_marker_hash_.put(i, highlight_marker_item);
207 highlight_marker_overlay_.addOverlay(highlight_marker_item);
208
209 try {
210 // Cue up audio alert
211 String audio_dir = TippleActivity.audioDirectory;
212 File alert_file = new File(audio_dir, "BeepMorseSonar.wav");
213 String alert_filename = alert_file.getAbsolutePath();
214
215 MediaPlayer mp = new MediaPlayer();
216 mp.setDataSource(alert_filename);
217 mp.prepare();
218 mp.start();
219 } catch (Exception e) {
220 System.err.println("Failed to play audio alert for active GPS location");
221 e.printStackTrace();
222 }
223
224 // Now record the fact we've been here
225 prev_locations_.add(place);
226
227 }
228
229 }
230
231 else if (pixel_distance >= outside_pixel_distance) {
232
233 if (curr_locations_.contains(place)) {
234 curr_locations_.remove(place);
235
236 // TipLocationManager.itemizedMarkerOverlay.unTap();
237
238 OverlayMarkerItem highlight_marker_item = highlight_marker_hash_.remove(i);
239 highlight_marker_overlay_.removeOverlay(highlight_marker_item);
240 }
241 }
242 }
243 }
244
245 @Override
246 public void onLocationChanged(Location loc) {
247 if (loc != null) {
248
249 System.err.println("TipLocationListener::onLocationChaged -- start");
250 lastKnownLocation = loc;
251
252 if (getLock()) {
253 updateActiveLocations(loc);
254 freeLock();
255 }
256
257 DecimalFormat truncPlaces = new DecimalFormat("0.0000000000");
258 double longitude = loc.getLongitude();
259 double latitude = loc.getLatitude();
260
261 String trunc_long = truncPlaces.format(longitude);
262 String trunc_lat = truncPlaces.format(latitude);
263
264 String text_mess = "(Long,Lat): (" + trunc_long + "," + trunc_lat + ")";
265 text_view_.setText(text_mess);
266
267 // remove old location circle
268 here_overlay_.removeCircle(my_pos_);
269
270 // location aware
271 GeoPoint point = new GeoPoint(latitude, longitude);
272 my_pos_ = new OverlayCircle(point, loc.getAccuracy(), null);
273 // here_overlay_.setCircleData(point, loc.getAccuracy());
274 here_overlay_.addCircle(my_pos_);
275
276 // Use the following line if you want to map to auto center on the GPS location
277 boolean centre_on_gps_loc = TippleActivity.sharedPreferences.getBoolean("centreOnGPSLoc", false);
278 if (centre_on_gps_loc) {
279 MapController map_controller = map_view_.getController();
280 if (map_controller != null) {
281 map_controller.setCenter(point);
282 }
283 }
284
285 // System.err.println("TipLocationListener::onLocationChaged -- finished");
286 }
287 }
288
289 @Override
290 public void onProviderDisabled(String provider) {
291 // TODO Auto-generated method stub
292 System.err.println("TipLocationListener::onProviderDisabled()");
293 }
294
295 @Override
296 public void onProviderEnabled(String provider) {
297 // TODO Auto-generated method stub
298 System.err.println("TipLocationListener::onProviderEnabled()");
299
300 }
301
302 @Override
303 public void onStatusChanged(String provider, int status, Bundle extras) {
304 // TODO Auto-generated method stub
305 System.err.println("TipLocationListener::onStatusChanged()");
306
307 }
308
309}
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