tim/prune/gui/DetailsDisplay.java

   1 package tim.prune.gui;
   2
   3 import java.awt.BorderLayout;
   4 import java.awt.Component;
   5 import java.awt.Dimension;
   6 import java.awt.Font;
   7 import java.awt.event.ActionEvent;
   8 import java.awt.event.ActionListener;
   9 import java.text.NumberFormat;
  10
  11 import javax.swing.BorderFactory;
  12 import javax.swing.Box;
  13 import javax.swing.BoxLayout;
  14 import javax.swing.JComboBox;
  15 import javax.swing.JLabel;
  16 import javax.swing.JPanel;
  17 import javax.swing.border.EtchedBorder;
  18
  19 import tim.prune.Config;
  20 import tim.prune.DataSubscriber;
  21 import tim.prune.I18nManager;
  22 import tim.prune.data.Altitude;
  23 import tim.prune.data.Coordinate;
  24 import tim.prune.data.DataPoint;
  25 import tim.prune.data.Distance;
  26 import tim.prune.data.IntegerRange;
  27 import tim.prune.data.Photo;
  28 import tim.prune.data.Selection;
  29 import tim.prune.data.TrackInfo;
  30
  31 /**
  32  * Class to hold point details and selection details
  33  * as a visual component
  34  */
  35 public class DetailsDisplay extends GenericDisplay
  36 {
  37         // Point details
  38         private JLabel _indexLabel = null;
  39         private JLabel _latLabel = null, _longLabel = null;
  40         private JLabel _altLabel = null, _nameLabel = null;
  41         private JLabel _timeLabel = null, _speedLabel = null;
  42
  43         // Range details
  44         private JLabel _rangeLabel = null;
  45         private JLabel _distanceLabel = null, _movingDistanceLabel = null;
  46         private JLabel _durationLabel = null;
  47         private JLabel _altRangeLabel = null, _updownLabel = null;
  48         private JLabel _aveSpeedLabel = null, _aveMovingSpeedLabel = null;
  49         private JLabel _paceLabel = null;
  50
  51         // Photo details
  52         private JLabel _photoLabel = null;
  53         private PhotoThumbnail _photoThumbnail = null;
  54         private JLabel _photoTimestampLabel = null;
  55         private JLabel _photoConnectedLabel = null;
  56
  57         // Units
  58         private JComboBox _coordFormatDropdown = null;
  59         private JComboBox _distUnitsDropdown = null;
  60         // Formatter
  61         private NumberFormat _distanceFormatter = NumberFormat.getInstance();
  62
  63         // Cached labels
  64         private static final String LABEL_POINT_SELECTED = I18nManager.getText("details.index.selected") + ": ";
  65         private static final String LABEL_POINT_LATITUDE = I18nManager.getText("fieldname.latitude") + ": ";
  66         private static final String LABEL_POINT_LONGITUDE = I18nManager.getText("fieldname.longitude") + ": ";
  67         private static final String LABEL_POINT_ALTITUDE = I18nManager.getText("fieldname.altitude") + ": ";
  68         private static final String LABEL_POINT_TIMESTAMP = I18nManager.getText("fieldname.timestamp") + ": ";
  69         private static final String LABEL_POINT_WAYPOINTNAME = I18nManager.getText("fieldname.waypointname") + ": ";
  70         private static final String LABEL_RANGE_SELECTED = I18nManager.getText("details.range.selected") + ": ";
  71         private static final String LABEL_RANGE_DURATION = I18nManager.getText("fieldname.duration") + ": ";
  72         private static final String LABEL_RANGE_DISTANCE = I18nManager.getText("fieldname.distance") + ": ";
  73         private static final String LABEL_RANGE_MOVINGDISTANCE = I18nManager.getText("fieldname.movingdistance") + ": ";
  74         private static final String LABEL_RANGE_ALTITUDE = I18nManager.getText("fieldname.altitude") + ": ";
  75         private static final String LABEL_RANGE_CLIMB = I18nManager.getText("details.range.climb") + ": ";
  76         private static final String LABEL_RANGE_DESCENT = ", " + I18nManager.getText("details.range.descent") + ": ";
  77         private static String LABEL_POINT_ALTITUDE_UNITS = null;
  78         private static Altitude.Format LABEL_POINT_ALTITUDE_FORMAT = Altitude.Format.NO_FORMAT;
  79
  80
  81         /**
  82          * Constructor
  83          * @param inTrackInfo Track info object
  84          */
  85         public DetailsDisplay(TrackInfo inTrackInfo)
  86         {
  87                 super(inTrackInfo);
  88                 setLayout(new BorderLayout());
  89
  90                 JPanel mainPanel = new JPanel();
  91                 mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
  92                 mainPanel.setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3));
  93
  94                 // Point details panel
  95                 JPanel pointDetailsPanel = new JPanel();
  96                 pointDetailsPanel.setLayout(new BoxLayout(pointDetailsPanel, BoxLayout.Y_AXIS));
  97                 pointDetailsPanel.setBorder(BorderFactory.createCompoundBorder(
  98                         BorderFactory.createEtchedBorder(EtchedBorder.LOWERED), BorderFactory.createEmptyBorder(3, 3, 3, 3))
  99                 );
 100                 JLabel pointDetailsLabel = new JLabel(I18nManager.getText("details.pointdetails"));
 101                 Font biggerFont = pointDetailsLabel.getFont();
 102                 biggerFont = biggerFont.deriveFont(Font.BOLD, biggerFont.getSize2D() + 2.0f);
 103                 pointDetailsLabel.setFont(biggerFont);
 104                 pointDetailsPanel.add(pointDetailsLabel);
 105                 _indexLabel = new JLabel(I18nManager.getText("details.nopointselection"));
 106                 pointDetailsPanel.add(_indexLabel);
 107                 _latLabel = new JLabel("");
 108                 pointDetailsPanel.add(_latLabel);
 109                 _longLabel = new JLabel("");
 110                 pointDetailsPanel.add(_longLabel);
 111                 _altLabel = new JLabel("");
 112                 pointDetailsPanel.add(_altLabel);
 113                 _timeLabel = new JLabel("");
 114                 pointDetailsPanel.add(_timeLabel);
 115                 _speedLabel = new JLabel("");
 116                 pointDetailsPanel.add(_speedLabel);
 117                 _nameLabel = new JLabel("");
 118                 pointDetailsPanel.add(_nameLabel);
 119                 pointDetailsPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
 120
 121                 // range details panel
 122                 JPanel rangeDetailsPanel = new JPanel();
 123                 rangeDetailsPanel.setLayout(new BoxLayout(rangeDetailsPanel, BoxLayout.Y_AXIS));
 124                 rangeDetailsPanel.setBorder(BorderFactory.createCompoundBorder(
 125                         BorderFactory.createEtchedBorder(EtchedBorder.LOWERED), BorderFactory.createEmptyBorder(3, 3, 3, 3))
 126                 );
 127                 JLabel rangeDetailsLabel = new JLabel(I18nManager.getText("details.rangedetails"));
 128                 rangeDetailsLabel.setFont(biggerFont);
 129                 rangeDetailsPanel.add(rangeDetailsLabel);
 130                 _rangeLabel = new JLabel(I18nManager.getText("details.norangeselection"));
 131                 rangeDetailsPanel.add(_rangeLabel);
 132                 _distanceLabel = new JLabel("");
 133                 rangeDetailsPanel.add(_distanceLabel);
 134                 _movingDistanceLabel = new JLabel("");
 135                 rangeDetailsPanel.add(_movingDistanceLabel);
 136                 _durationLabel = new JLabel("");
 137                 rangeDetailsPanel.add(_durationLabel);
 138                 _aveSpeedLabel = new JLabel("");
 139                 rangeDetailsPanel.add(_aveSpeedLabel);
 140                 _aveMovingSpeedLabel = new JLabel("");
 141                 rangeDetailsPanel.add(_aveMovingSpeedLabel);
 142                 _paceLabel = new JLabel("");
 143                 rangeDetailsPanel.add(_paceLabel);
 144                 _altRangeLabel = new JLabel("");
 145                 rangeDetailsPanel.add(_altRangeLabel);
 146                 _updownLabel = new JLabel("");
 147                 rangeDetailsPanel.add(_updownLabel);
 148                 rangeDetailsPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
 149
 150                 // photo details panel
 151                 JPanel photoDetailsPanel = new JPanel();
 152                 photoDetailsPanel.setLayout(new BoxLayout(photoDetailsPanel, BoxLayout.Y_AXIS));
 153                 photoDetailsPanel.setBorder(BorderFactory.createCompoundBorder(
 154                         BorderFactory.createEtchedBorder(EtchedBorder.LOWERED), BorderFactory.createEmptyBorder(3, 3, 3, 3))
 155                 );
 156                 JLabel photoDetailsLabel = new JLabel(I18nManager.getText("details.photodetails"));
 157                 photoDetailsLabel.setFont(biggerFont);
 158                 photoDetailsPanel.add(photoDetailsLabel);
 159                 _photoLabel = new JLabel(I18nManager.getText("details.nophoto"));
 160                 photoDetailsPanel.add(_photoLabel);
 161                 _photoTimestampLabel = new JLabel("");
 162                 photoDetailsPanel.add(_photoTimestampLabel);
 163                 _photoConnectedLabel = new JLabel("");
 164                 photoDetailsPanel.add(_photoConnectedLabel);
 165                 _photoThumbnail = new PhotoThumbnail();
 166                 _photoThumbnail.setVisible(false);
 167                 _photoThumbnail.setPreferredSize(new Dimension(100, 100));
 168                 photoDetailsPanel.add(_photoThumbnail);
 169
 170                 // add the details panels to the main panel
 171                 mainPanel.add(pointDetailsPanel);
 172                 mainPanel.add(Box.createVerticalStrut(5));
 173                 mainPanel.add(rangeDetailsPanel);
 174                 mainPanel.add(Box.createVerticalStrut(5));
 175                 mainPanel.add(photoDetailsPanel);
 176                 mainPanel.add(Box.createVerticalStrut(5));
 177                 // add the main panel at the top
 178                 add(mainPanel, BorderLayout.NORTH);
 179
 180                 // Add format, units selection
 181                 JPanel lowerPanel = new JPanel();
 182                 lowerPanel.setLayout(new BoxLayout(lowerPanel, BoxLayout.Y_AXIS));
 183                 JLabel coordFormatLabel = new JLabel(I18nManager.getText("details.coordformat") + ": ");
 184                 coordFormatLabel.setAlignmentX(Component.LEFT_ALIGNMENT);
 185                 lowerPanel.add(coordFormatLabel);
 186                 String[] coordFormats = {I18nManager.getText("units.original"), I18nManager.getText("units.degminsec"),
 187                         I18nManager.getText("units.degmin"), I18nManager.getText("units.deg")};
 188                 _coordFormatDropdown = new JComboBox(coordFormats);
 189                 _coordFormatDropdown.addActionListener(new ActionListener() {
 190                         public void actionPerformed(ActionEvent e)
 191                         {
 192                                 dataUpdated(DataSubscriber.UNITS_CHANGED);
 193                         }
 194                 });
 195                 lowerPanel.add(_coordFormatDropdown);
 196                 _coordFormatDropdown.setAlignmentX(Component.LEFT_ALIGNMENT);
 197                 JLabel unitsLabel = new JLabel(I18nManager.getText("details.distanceunits") + ": ");
 198                 unitsLabel.setAlignmentX(Component.LEFT_ALIGNMENT);
 199                 lowerPanel.add(unitsLabel);
 200                 String[] distUnits = {I18nManager.getText("units.kilometres"), I18nManager.getText("units.miles")};
 201                 _distUnitsDropdown = new JComboBox(distUnits);
 202                 if (!Config.getConfigBoolean(Config.KEY_METRIC_UNITS)) {_distUnitsDropdown.setSelectedIndex(1);}
 203                 _distUnitsDropdown.addActionListener(new ActionListener() {
 204                         public void actionPerformed(ActionEvent e)
 205                         {
 206                                 dataUpdated(DataSubscriber.UNITS_CHANGED);
 207                                 Config.setConfigBoolean(Config.KEY_METRIC_UNITS, _distUnitsDropdown.getSelectedIndex() == 0);
 208                         }
 209                 });
 210                 lowerPanel.add(_distUnitsDropdown);
 211                 _distUnitsDropdown.setAlignmentX(Component.LEFT_ALIGNMENT);
 212                 add(lowerPanel, BorderLayout.SOUTH);
 213         }
 214
 215
 216         /**
 217          * Notification that Track has been updated
 218          * @param inUpdateType byte to specify what has been updated
 219          */
 220         public void dataUpdated(byte inUpdateType)
 221         {
 222                 // Update current point data, if any
 223                 DataPoint currentPoint = _trackInfo.getCurrentPoint();
 224                 Selection selection = _trackInfo.getSelection();
 225                 int currentPointIndex = selection.getCurrentPointIndex();
 226                 _speedLabel.setText("");
 227                 Distance.Units distUnits = _distUnitsDropdown.getSelectedIndex()==0?Distance.Units.KILOMETRES:Distance.Units.MILES;
 228                 String distUnitsStr = I18nManager.getText(_distUnitsDropdown.getSelectedIndex()==0?"units.kilometres.short":"units.miles.short");
 229                 String speedUnitsStr = I18nManager.getText(_distUnitsDropdown.getSelectedIndex()==0?"units.kmh":"units.mph");
 230                 if (_track == null || currentPoint == null)
 231                 {
 232                         _indexLabel.setText(I18nManager.getText("details.nopointselection"));
 233                         _latLabel.setText("");
 234                         _longLabel.setText("");
 235                         _altLabel.setText("");
 236                         _timeLabel.setText("");
 237                         _nameLabel.setText("");
 238                 }
 239                 else
 240                 {
 241                         _indexLabel.setText(LABEL_POINT_SELECTED
 242                                 + (currentPointIndex+1) + " " + I18nManager.getText("details.index.of")
 243                                 + " " + _track.getNumPoints());
 244                         _latLabel.setText(makeCoordinateLabel(LABEL_POINT_LATITUDE, currentPoint.getLatitude(), _coordFormatDropdown.getSelectedIndex()));
 245                         _longLabel.setText(makeCoordinateLabel(LABEL_POINT_LONGITUDE, currentPoint.getLongitude(), _coordFormatDropdown.getSelectedIndex()));
 246                         _altLabel.setText(currentPoint.hasAltitude()?
 247                                 (LABEL_POINT_ALTITUDE + currentPoint.getAltitude().getValue() + getAltitudeUnitsLabel(currentPoint.getAltitude().getFormat()))
 248                                 :"");
 249                         if (currentPoint.getTimestamp().isValid())
 250                         {
 251                                 if (currentPointIndex > 0 && currentPointIndex < (_trackInfo.getTrack().getNumPoints()-1))
 252                                 {
 253                                         DataPoint prevPoint = _trackInfo.getTrack().getPoint(currentPointIndex - 1);
 254                                         DataPoint nextPoint = _trackInfo.getTrack().getPoint(currentPointIndex + 1);
 255                                         if (prevPoint.getTimestamp().isValid() && nextPoint.getTimestamp().isValid())
 256                                         {
 257                                                 // use total distance and total time between neighbouring points
 258                                                 long diff = nextPoint.getTimestamp().getSecondsSince(prevPoint.getTimestamp());
 259                                                 if (diff < 1000 && diff > 0)
 260                                                 {
 261                                                         double rads = DataPoint.calculateRadiansBetween(prevPoint, currentPoint) +
 262                                                                 DataPoint.calculateRadiansBetween(currentPoint, nextPoint);
 263                                                         double dist = Distance.convertRadiansToDistance(rads, distUnits);
 264                                                         String speed = roundedNumber(3600 * dist / diff) + " " + speedUnitsStr;
 265                                                         _speedLabel.setText(I18nManager.getText("fieldname.speed") + ": " + speed);
 266                                                 }
 267                                         }
 268                                 }
 269                                 _timeLabel.setText(LABEL_POINT_TIMESTAMP + currentPoint.getTimestamp().getText());
 270                         }
 271                         else {
 272                                 _timeLabel.setText("");
 273                         }
 274                         String name = currentPoint.getWaypointName();
 275                         if (name != null && !name.equals(""))
 276                         {
 277                                 _nameLabel.setText(LABEL_POINT_WAYPOINTNAME + name);
 278                         }
 279                         else _nameLabel.setText("");
 280                 }
 281
 282                 // Update range details
 283                 if (_track == null || !selection.hasRangeSelected())
 284                 {
 285                         _rangeLabel.setText(I18nManager.getText("details.norangeselection"));
 286                         _distanceLabel.setText("");
 287                         _movingDistanceLabel.setText("");
 288                         _durationLabel.setText("");
 289                         _altRangeLabel.setText("");
 290                         _updownLabel.setText("");
 291                         _aveSpeedLabel.setText("");
 292                         _aveMovingSpeedLabel.setText("");
 293                         _paceLabel.setText("");
 294                 }
 295                 else
 296                 {
 297                         _rangeLabel.setText(LABEL_RANGE_SELECTED
 298                                 + (selection.getStart()+1) + " " + I18nManager.getText("details.range.to")
 299                                 + " " + (selection.getEnd()+1));
 300                         _distanceLabel.setText(LABEL_RANGE_DISTANCE + roundedNumber(selection.getDistance(distUnits)) + " " + distUnitsStr);
 301                         if (selection.getHasMultipleSegments()) {
 302                                 _movingDistanceLabel.setText(LABEL_RANGE_MOVINGDISTANCE + roundedNumber(selection.getMovingDistance(distUnits)) + " " + distUnitsStr);
 303                         }
 304                         else {
 305                                 _movingDistanceLabel.setText(null);
 306                         }
 307                         if (selection.getNumSeconds() > 0)
 308                         {
 309                                 _durationLabel.setText(LABEL_RANGE_DURATION + buildDurationString(selection.getNumSeconds()));
 310                                 _aveSpeedLabel.setText(I18nManager.getText("details.range.avespeed") + ": "
 311                                         + roundedNumber(selection.getDistance(distUnits)/selection.getNumSeconds()*3600.0) + " " + speedUnitsStr);
 312                                 if (selection.getHasMultipleSegments()) {
 313                                         _aveMovingSpeedLabel.setText(I18nManager.getText("details.range.avemovingspeed") + ": "
 314                                                 + roundedNumber(selection.getMovingDistance(distUnits)/selection.getMovingSeconds()*3600.0) + " " + speedUnitsStr);
 315                                 }
 316                                 else {
 317                                         _aveMovingSpeedLabel.setText(null);
 318                                 }
 319                                 if (Config.getConfigBoolean(Config.KEY_SHOW_PACE)) {
 320                                         _paceLabel.setText(I18nManager.getText("details.range.pace") + ": "
 321                                                 + buildDurationString((long) (selection.getNumSeconds()/selection.getDistance(distUnits)))
 322                                                 + " / " + distUnitsStr);
 323                                 }
 324                                 else {
 325                                         _paceLabel.setText("");
 326                                 }
 327                         }
 328                         else {
 329                                 _durationLabel.setText("");
 330                                 _aveSpeedLabel.setText("");
 331                                 _aveMovingSpeedLabel.setText("");
 332                                 _paceLabel.setText("");
 333                         }
 334                         String altUnitsLabel = getAltitudeUnitsLabel(selection.getAltitudeFormat());
 335                         IntegerRange altRange = selection.getAltitudeRange();
 336                         if (altRange.getMinimum() >= 0 && altRange.getMaximum() >= 0)
 337                         {
 338                                 _altRangeLabel.setText(LABEL_RANGE_ALTITUDE
 339                                         + altRange.getMinimum() + altUnitsLabel + " "
 340                                         + I18nManager.getText("details.altitude.to") + " "
 341                                         + altRange.getMaximum() + altUnitsLabel);
 342                                 _updownLabel.setText(LABEL_RANGE_CLIMB + selection.getClimb() + altUnitsLabel
 343                                         + LABEL_RANGE_DESCENT + selection.getDescent() + altUnitsLabel);
 344                         }
 345                         else
 346                         {
 347                                 _altRangeLabel.setText("");
 348                                 _updownLabel.setText("");
 349                         }
 350                 }
 351                 // show photo details and thumbnail
 352                 Photo currentPhoto = _trackInfo.getPhotoList().getPhoto(_trackInfo.getSelection().getCurrentPhotoIndex());
 353                 if ((currentPoint == null || currentPoint.getPhoto() == null) && currentPhoto == null)
 354                 {
 355                         // no photo, hide details
 356                         _photoLabel.setText(I18nManager.getText("details.nophoto"));
 357                         _photoTimestampLabel.setText("");
 358                         _photoConnectedLabel.setText("");
 359                         _photoThumbnail.setVisible(false);
 360                 }
 361                 else
 362                 {
 363                         if (currentPhoto == null) {currentPhoto = currentPoint.getPhoto();}
 364                         _photoLabel.setText(I18nManager.getText("details.photofile") + ": " + currentPhoto.getFile().getName());
 365                         _photoTimestampLabel.setText(LABEL_POINT_TIMESTAMP + currentPhoto.getTimestamp().getText());
 366                         _photoConnectedLabel.setText(I18nManager.getText("details.photo.connected") + ": "
 367                                 + (currentPhoto.getCurrentStatus() == Photo.Status.NOT_CONNECTED ?
 368                                         I18nManager.getText("dialog.about.no"):I18nManager.getText("dialog.about.yes")));
 369                         _photoThumbnail.setVisible(true);
 370                         _photoThumbnail.setPhoto(currentPhoto);
 371                 }
 372                 _photoThumbnail.repaint();
 373         }
 374
 375
 376         /**
 377          * Choose the appropriate altitude units label for the specified format
 378          * @param inFormat altitude format
 379          * @return language-sensitive string
 380          */
 381         private static String getAltitudeUnitsLabel(Altitude.Format inFormat)
 382         {
 383                 if (inFormat == LABEL_POINT_ALTITUDE_FORMAT && LABEL_POINT_ALTITUDE_UNITS != null)
 384                         return LABEL_POINT_ALTITUDE_UNITS;
 385                 LABEL_POINT_ALTITUDE_FORMAT = inFormat;
 386                 if (inFormat == Altitude.Format.METRES)
 387                         return " " + I18nManager.getText("units.metres.short");
 388                 return " " + I18nManager.getText("units.feet.short");
 389         }
 390
 391
 392         /**
 393          * Construct an appropriate coordinate label using the selected format
 394          * @param inPrefix prefix of label
 395          * @param inCoordinate coordinate
 396          * @param inFormat index of format selection dropdown
 397          * @return language-sensitive string
 398          */
 399         private static String makeCoordinateLabel(String inPrefix, Coordinate inCoordinate, int inFormat)
 400         {
 401                 String coord = null;
 402                 switch (inFormat) {
 403                         case 1: // degminsec
 404                                 coord = inCoordinate.output(Coordinate.FORMAT_DEG_MIN_SEC); break;
 405                         case 2: // degmin
 406                                 coord = inCoordinate.output(Coordinate.FORMAT_DEG_MIN); break;
 407                         case 3: // degrees
 408                                 coord = inCoordinate.output(Coordinate.FORMAT_DEG); break;
 409                         default: // just as it was
 410                                 coord = inCoordinate.output(Coordinate.FORMAT_NONE);
 411                 }
 412                 return inPrefix + coord;
 413         }
 414
 415
 416         /**
 417          * Build a String to describe a time duration
 418          * @param inNumSecs number of seconds
 419          * @return time as a string, days, hours, mins, secs as appropriate
 420          */
 421         private static String buildDurationString(long inNumSecs)
 422         {
 423                 if (inNumSecs <= 0L) return "";
 424                 if (inNumSecs < 60L) return "" + inNumSecs + I18nManager.getText("display.range.time.secs");
 425                 if (inNumSecs < 3600L) return "" + (inNumSecs / 60) + I18nManager.getText("display.range.time.mins")
 426                         + " " + (inNumSecs % 60) + I18nManager.getText("display.range.time.secs");
 427                 if (inNumSecs < 86400L) return "" + (inNumSecs / 60 / 60) + I18nManager.getText("display.range.time.hours")
 428                         + " " + ((inNumSecs / 60) % 60) + I18nManager.getText("display.range.time.mins");
 429                 if (inNumSecs < 432000L) return "" + (inNumSecs / 86400L) + I18nManager.getText("display.range.time.days")
 430                         + " " + (inNumSecs / 60 / 60) % 24 + I18nManager.getText("display.range.time.hours");
 431                 if (inNumSecs < 8640000L) return "" + (inNumSecs / 86400L) + I18nManager.getText("display.range.time.days");
 432                 return "big";
 433         }
 434
 435
 436         /**
 437          * Format a number to a sensible precision
 438          * @param inDist distance
 439          * @return formatted String
 440          */
 441         private String roundedNumber(double inDist)
 442         {
 443                 // Set precision of formatter
 444                 int numDigits = 0;
 445                 if (inDist < 1.0)
 446                         numDigits = 3;
 447                 else if (inDist < 10.0)
 448                         numDigits = 2;
 449                 else if (inDist < 100.0)
 450                         numDigits = 1;
 451                 // set formatter
 452                 _distanceFormatter.setMaximumFractionDigits(numDigits);
 453                 _distanceFormatter.setMinimumFractionDigits(numDigits);
 454                 return _distanceFormatter.format(inDist);
 455         }
 456 }