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