tim/prune/save/FileSaver.java

   1 package tim.prune.save;
   2
   3 import java.awt.BorderLayout;
   4 import java.awt.CardLayout;
   5 import java.awt.Component;
   6 import java.awt.Dimension;
   7 import java.awt.FlowLayout;
   8 import java.awt.GridLayout;
   9 import java.awt.event.ActionEvent;
  10 import java.awt.event.ActionListener;
  11 import java.io.File;
  12 import java.io.FileWriter;
  13 import java.io.IOException;
  14
  15 import javax.swing.BorderFactory;
  16 import javax.swing.Box;
  17 import javax.swing.BoxLayout;
  18 import javax.swing.ButtonGroup;
  19 import javax.swing.JButton;
  20 import javax.swing.JCheckBox;
  21 import javax.swing.JDialog;
  22 import javax.swing.JFileChooser;
  23 import javax.swing.JFrame;
  24 import javax.swing.JLabel;
  25 import javax.swing.JOptionPane;
  26 import javax.swing.JPanel;
  27 import javax.swing.JRadioButton;
  28 import javax.swing.JScrollPane;
  29 import javax.swing.JTable;
  30 import javax.swing.JTextField;
  31 import javax.swing.ListSelectionModel;
  32 import javax.swing.table.TableModel;
  33
  34 import tim.prune.App;
  35 import tim.prune.Config;
  36 import tim.prune.I18nManager;
  37 import tim.prune.UpdateMessageBroker;
  38 import tim.prune.data.Altitude;
  39 import tim.prune.data.Coordinate;
  40 import tim.prune.data.DataPoint;
  41 import tim.prune.data.Field;
  42 import tim.prune.data.FieldList;
  43 import tim.prune.data.Timestamp;
  44 import tim.prune.data.Track;
  45 import tim.prune.load.GenericFileFilter;
  46 import tim.prune.load.OneCharDocument;
  47
  48 /**
  49  * Class to manage the saving of track data
  50  * into a user-specified file
  51  */
  52 public class FileSaver
  53 {
  54         private App _app = null;
  55         private JFrame _parentFrame = null;
  56         private Track _track = null;
  57         private JDialog _dialog = null;
  58         private JFileChooser _fileChooser = null;
  59         private JPanel _cards = null;
  60         private JButton _nextButton = null, _backButton = null;
  61         private JTable _table = null;
  62         private FieldSelectionTableModel _model = null;
  63         private JButton _moveUpButton = null, _moveDownButton = null;
  64         private UpDownToggler _toggler = null;
  65         private JRadioButton[] _delimiterRadios = null;
  66         private JTextField _otherDelimiterText = null;
  67         private JCheckBox _headerRowCheckbox = null;
  68         private JRadioButton[] _coordUnitsRadios = null;
  69         private JRadioButton[] _altitudeUnitsRadios = null;
  70         private JRadioButton[] _timestampUnitsRadios = null;
  71         private static final int[] FORMAT_COORDS = {Coordinate.FORMAT_NONE, Coordinate.FORMAT_DEG_MIN_SEC,
  72                 Coordinate.FORMAT_DEG_MIN, Coordinate.FORMAT_DEG};
  73         private static final int[] FORMAT_ALTS = {Altitude.FORMAT_NONE, Altitude.FORMAT_METRES, Altitude.FORMAT_FEET};
  74         private static final int[] FORMAT_TIMES = {Timestamp.FORMAT_ORIGINAL, Timestamp.FORMAT_LOCALE, Timestamp.FORMAT_ISO_8601};
  75
  76
  77         /**
  78          * Constructor
  79          * @param inApp application object to inform of success
  80          * @param inParentFrame parent frame
  81          * @param inTrack track object to save
  82          */
  83         public FileSaver(App inApp, JFrame inParentFrame, Track inTrack)
  84         {
  85                 _app = inApp;
  86                 _parentFrame = inParentFrame;
  87                 _track = inTrack;
  88         }
  89
  90
  91         /**
  92          * Show the save file dialog
  93          * @param inDefaultDelimiter default delimiter to use
  94          */
  95         public void showDialog(char inDefaultDelimiter)
  96         {
  97                 if (_dialog == null)
  98                 {
  99                         _dialog = new JDialog(_parentFrame, I18nManager.getText("dialog.saveoptions.title"), true);
 100                         _dialog.setLocationRelativeTo(_parentFrame);
 101                         _dialog.getContentPane().add(makeDialogComponents());
 102                         _dialog.pack();
 103                 }
 104                 // Check field list
 105                 FieldList fieldList = _track.getFieldList();
 106                 int numFields = fieldList.getNumFields();
 107                 _model = new FieldSelectionTableModel(numFields);
 108                 for (int i=0; i<numFields; i++)
 109                 {
 110                         Field field = fieldList.getField(i);
 111                         FieldInfo info = new FieldInfo(field, _track.hasData(field));
 112                         _model.addFieldInfo(info, i);
 113                 }
 114                 // Initialise dialog and show it
 115                 initDialog(_model, inDefaultDelimiter);
 116                 _dialog.show();
 117         }
 118
 119
 120         /**
 121          * Make the dialog components
 122          * @return the GUI components for the save dialog
 123          */
 124         private Component makeDialogComponents()
 125         {
 126                 JPanel panel = new JPanel();
 127                 panel.setLayout(new BorderLayout());
 128                 _cards = new JPanel();
 129                 _cards.setLayout(new CardLayout());
 130                 panel.add(_cards, BorderLayout.CENTER);
 131
 132                 // Make first card for field selection and delimiter
 133                 JPanel firstCard = new JPanel();
 134                 firstCard.setLayout(new BoxLayout(firstCard, BoxLayout.Y_AXIS));
 135                 JPanel tablePanel = new JPanel();
 136                 tablePanel.setLayout(new BorderLayout());
 137                 _table = new JTable();
 138                 _table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 139                 // Enclose table in a scrollpane to prevent other components getting lost
 140                 JScrollPane scrollPane = new JScrollPane(_table);
 141                 _table.setPreferredScrollableViewportSize(new Dimension(300, 150));
 142                 tablePanel.add(scrollPane, BorderLayout.CENTER);
 143
 144                 // Make a panel to hold the table and up/down buttons
 145                 JPanel fieldsPanel = new JPanel();
 146                 fieldsPanel.setLayout(new BorderLayout());
 147                 fieldsPanel.add(tablePanel, BorderLayout.CENTER);
 148                 JPanel updownPanel = new JPanel();
 149                 updownPanel.setLayout(new BoxLayout(updownPanel, BoxLayout.Y_AXIS));
 150                 _moveUpButton = new JButton(I18nManager.getText("button.moveup"));
 151                 _moveUpButton.addActionListener(new ActionListener() {
 152                         public void actionPerformed(ActionEvent e)
 153                         {
 154                                 int row = _table.getSelectedRow();
 155                                 if (row > 0)
 156                                 {
 157                                         _model.swapItems(row, row - 1);
 158                                         _table.setRowSelectionInterval(row - 1, row - 1);
 159                                 }
 160                         }
 161                 });
 162                 _moveUpButton.setEnabled(false);
 163                 updownPanel.add(_moveUpButton);
 164                 _moveDownButton = new JButton(I18nManager.getText("button.movedown"));
 165                 _moveDownButton.addActionListener(new ActionListener() {
 166                         public void actionPerformed(ActionEvent e)
 167                         {
 168                                 int row = _table.getSelectedRow();
 169                                 if (row > -1 && row < (_model.getRowCount() - 1))
 170                                 {
 171                                         _model.swapItems(row, row + 1);
 172                                         _table.setRowSelectionInterval(row + 1, row + 1);
 173                                 }
 174                         }
 175                 });
 176                 _moveDownButton.setEnabled(false);
 177                 updownPanel.add(_moveDownButton);
 178                 fieldsPanel.add(updownPanel, BorderLayout.EAST);
 179                 // enable/disable buttons based on table row selection
 180                 _toggler = new UpDownToggler(_moveUpButton, _moveDownButton);
 181                 _table.getSelectionModel().addListSelectionListener(_toggler);
 182
 183                 // Add fields panel and the delimiter panel to first card in pack
 184                 JLabel saveOptionsLabel = new JLabel(I18nManager.getText("dialog.save.fieldstosave"));
 185                 saveOptionsLabel.setAlignmentX(JLabel.LEFT_ALIGNMENT);
 186                 firstCard.add(saveOptionsLabel);
 187                 fieldsPanel.setAlignmentX(JPanel.LEFT_ALIGNMENT);
 188                 firstCard.add(fieldsPanel);
 189                 firstCard.add(Box.createRigidArea(new Dimension(0,10)));
 190
 191                 // delimiter panel
 192                 JLabel delimLabel = new JLabel(I18nManager.getText("dialog.delimiter.label"));
 193                 delimLabel.setAlignmentX(JLabel.LEFT_ALIGNMENT);
 194                 firstCard.add(delimLabel);
 195                 JPanel delimsPanel = new JPanel();
 196                 delimsPanel.setLayout(new GridLayout(0, 2));
 197                 delimsPanel.setAlignmentX(JPanel.LEFT_ALIGNMENT);
 198                 // radio buttons
 199                 _delimiterRadios = new JRadioButton[5];
 200                 _delimiterRadios[0] = new JRadioButton(I18nManager.getText("dialog.delimiter.comma"));
 201                 delimsPanel.add(_delimiterRadios[0]);
 202                 _delimiterRadios[1] = new JRadioButton(I18nManager.getText("dialog.delimiter.tab"));
 203                 delimsPanel.add(_delimiterRadios[1]);
 204                 _delimiterRadios[2] = new JRadioButton(I18nManager.getText("dialog.delimiter.semicolon"));
 205                 delimsPanel.add(_delimiterRadios[2]);
 206                 _delimiterRadios[3] = new JRadioButton(I18nManager.getText("dialog.delimiter.space"));
 207                 delimsPanel.add(_delimiterRadios[3]);
 208                 JPanel otherPanel = new JPanel();
 209                 otherPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
 210                 _delimiterRadios[4] = new JRadioButton(I18nManager.getText("dialog.delimiter.other"));
 211                 otherPanel.add(_delimiterRadios[4]);
 212                 _otherDelimiterText = new JTextField(new OneCharDocument(), null, 2);
 213                 otherPanel.add(_otherDelimiterText);
 214                 // Group radio buttons
 215                 ButtonGroup delimGroup = new ButtonGroup();
 216                 for (int i=0; i<_delimiterRadios.length; i++)
 217                 {
 218                         delimGroup.add(_delimiterRadios[i]);
 219                 }
 220                 delimsPanel.add(otherPanel);
 221                 firstCard.add(delimsPanel);
 222
 223                 // header checkbox
 224                 firstCard.add(Box.createRigidArea(new Dimension(0,10)));
 225                 _headerRowCheckbox = new JCheckBox(I18nManager.getText("dialog.save.headerrow"), true);
 226                 firstCard.add(_headerRowCheckbox);
 227
 228                 _cards.add(firstCard, "card1");
 229
 230                 JPanel secondCard = new JPanel();
 231                 secondCard.setLayout(new BorderLayout());
 232                 JPanel secondCardHolder = new JPanel();
 233                 secondCardHolder.setLayout(new BoxLayout(secondCardHolder, BoxLayout.Y_AXIS));
 234                 JLabel coordLabel = new JLabel(I18nManager.getText("dialog.save.coordinateunits"));
 235                 coordLabel.setAlignmentX(JLabel.LEFT_ALIGNMENT);
 236                 secondCardHolder.add(coordLabel);
 237                 JPanel coordsUnitsPanel = new JPanel();
 238                 coordsUnitsPanel.setBorder(BorderFactory.createEtchedBorder());
 239                 coordsUnitsPanel.setLayout(new GridLayout(0, 2));
 240                 _coordUnitsRadios = new JRadioButton[4];
 241                 _coordUnitsRadios[0] = new JRadioButton(I18nManager.getText("units.original"));
 242                 _coordUnitsRadios[1] = new JRadioButton(I18nManager.getText("units.degminsec"));
 243                 _coordUnitsRadios[2] = new JRadioButton(I18nManager.getText("units.degmin"));
 244                 _coordUnitsRadios[3] = new JRadioButton(I18nManager.getText("units.deg"));
 245                 ButtonGroup coordGroup = new ButtonGroup();
 246                 for (int i=0; i<4; i++)
 247                 {
 248                         coordGroup.add(_coordUnitsRadios[i]);
 249                         coordsUnitsPanel.add(_coordUnitsRadios[i]);
 250                         _coordUnitsRadios[i].setSelected(i==0);
 251                 }
 252                 coordsUnitsPanel.setAlignmentX(JPanel.LEFT_ALIGNMENT);
 253                 secondCardHolder.add(coordsUnitsPanel);
 254                 secondCardHolder.add(Box.createRigidArea(new Dimension(0,10)));
 255                 // altitude units
 256                 JLabel altUnitsLabel = new JLabel(I18nManager.getText("dialog.save.altitudeunits"));
 257                 altUnitsLabel.setAlignmentX(JLabel.LEFT_ALIGNMENT);
 258                 secondCardHolder.add(altUnitsLabel);
 259                 JPanel altUnitsPanel = new JPanel();
 260                 altUnitsPanel.setBorder(BorderFactory.createEtchedBorder());
 261                 altUnitsPanel.setLayout(new GridLayout(0, 2));
 262                 _altitudeUnitsRadios = new JRadioButton[3];
 263                 _altitudeUnitsRadios[0] = new JRadioButton(I18nManager.getText("units.original"));
 264                 _altitudeUnitsRadios[1] = new JRadioButton(I18nManager.getText("units.metres"));
 265                 _altitudeUnitsRadios[2] = new JRadioButton(I18nManager.getText("units.feet"));
 266                 ButtonGroup altGroup = new ButtonGroup();
 267                 for (int i=0; i<3; i++)
 268                 {
 269                         altGroup.add(_altitudeUnitsRadios[i]);
 270                         altUnitsPanel.add(_altitudeUnitsRadios[i]);
 271                         _altitudeUnitsRadios[i].setSelected(i==0);
 272                 }
 273                 altUnitsPanel.setAlignmentX(JPanel.LEFT_ALIGNMENT);
 274                 secondCardHolder.add(altUnitsPanel);
 275                 secondCardHolder.add(Box.createRigidArea(new Dimension(0,10)));
 276                 // Selection of format of timestamps
 277                 JLabel timestampLabel = new JLabel(I18nManager.getText("dialog.save.timestampformat"));
 278                 timestampLabel.setAlignmentX(JLabel.LEFT_ALIGNMENT);
 279                 secondCardHolder.add(timestampLabel);
 280                 JPanel timestampPanel = new JPanel();
 281                 timestampPanel.setBorder(BorderFactory.createEtchedBorder());
 282                 timestampPanel.setLayout(new GridLayout(0, 2));
 283                 _timestampUnitsRadios = new JRadioButton[3];
 284                 _timestampUnitsRadios[0] = new JRadioButton(I18nManager.getText("units.original"));
 285                 _timestampUnitsRadios[1] = new JRadioButton(I18nManager.getText("units.default"));
 286                 _timestampUnitsRadios[2] = new JRadioButton(I18nManager.getText("units.iso8601"));
 287                 ButtonGroup timeGroup = new ButtonGroup();
 288                 for (int i=0; i<3; i++)
 289                 {
 290                         timeGroup.add(_timestampUnitsRadios[i]);
 291                         timestampPanel.add(_timestampUnitsRadios[i]);
 292                         _timestampUnitsRadios[i].setSelected(i==0);
 293                 }
 294                 timestampPanel.setAlignmentX(JPanel.LEFT_ALIGNMENT);
 295                 secondCardHolder.add(timestampPanel);
 296                 secondCard.add(secondCardHolder, BorderLayout.NORTH);
 297                 _cards.add(secondCard, "card2");
 298
 299                 // Put together with ok/cancel buttons on the bottom
 300                 JPanel buttonPanel = new JPanel();
 301                 buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
 302                 _backButton = new JButton(I18nManager.getText("button.back"));
 303                 _backButton.addActionListener(new ActionListener() {
 304                         public void actionPerformed(ActionEvent e)
 305                         {
 306                                 CardLayout cl = (CardLayout) _cards.getLayout();
 307                                 cl.previous(_cards);
 308                                 _backButton.setEnabled(false);
 309                                 _nextButton.setEnabled(true);
 310                         }
 311                 });
 312                 _backButton.setEnabled(false);
 313                 buttonPanel.add(_backButton);
 314                 _nextButton = new JButton(I18nManager.getText("button.next"));
 315                 _nextButton.setEnabled(true);
 316                 _nextButton.addActionListener(new ActionListener() {
 317                         public void actionPerformed(ActionEvent e)
 318                         {
 319                                 CardLayout cl = (CardLayout) _cards.getLayout();
 320                                 cl.next(_cards);
 321                                 _backButton.setEnabled(true);
 322                                 _nextButton.setEnabled(false);
 323                         }
 324                 });
 325                 buttonPanel.add(_nextButton);
 326                 JButton okButton = new JButton(I18nManager.getText("button.finish"));
 327                 okButton.addActionListener(new ActionListener() {
 328                         public void actionPerformed(ActionEvent e)
 329                         {
 330                                 if (saveToFile())
 331                                 {
 332                                         _dialog.dispose();
 333                                 }
 334                         }
 335                 });
 336                 buttonPanel.add(okButton);
 337                 JButton cancelButton = new JButton(I18nManager.getText("button.cancel"));
 338                 cancelButton.addActionListener(new ActionListener() {
 339                         public void actionPerformed(ActionEvent e)
 340                         {
 341                                 _dialog.dispose();
 342                         }
 343                 });
 344                 buttonPanel.add(cancelButton);
 345                 panel.add(buttonPanel, BorderLayout.SOUTH);
 346                 return panel;
 347         }
 348
 349         /**
 350          * Initialize the dialog with the given details
 351          * @param inModel table model
 352          * @param inDefaultDelimiter default delimiter character
 353          */
 354         private void initDialog(TableModel inModel, char inDefaultDelimiter)
 355         {
 356                 // set table model
 357                 _table.setModel(inModel);
 358                 // reset toggler
 359                 _toggler.setListSize(inModel.getRowCount());
 360                 // choose last-used delimiter as default
 361                 switch (inDefaultDelimiter)
 362                 {
 363                         case ','  : _delimiterRadios[0].setSelected(true); break;
 364                         case '\t' : _delimiterRadios[1].setSelected(true); break;
 365                         case ';'  : _delimiterRadios[2].setSelected(true); break;
 366                         case ' '  : _delimiterRadios[3].setSelected(true); break;
 367                         default   : _delimiterRadios[4].setSelected(true);
 368                                                 _otherDelimiterText.setText("" + inDefaultDelimiter);
 369                 }
 370                 // set card and enable buttons
 371                 CardLayout cl = (CardLayout) _cards.getLayout();
 372                 cl.first(_cards);
 373                 _nextButton.setEnabled(true);
 374                 _backButton.setEnabled(false);
 375         }
 376
 377
 378         /**
 379          * Save the track to file with the chosen options
 380          * @return true if successful or cancelled, false if failed
 381          */
 382         private boolean saveToFile()
 383         {
 384                 boolean saveOK = true;
 385                 FileWriter writer = null;
 386                 if (_fileChooser == null)
 387                 {
 388                         _fileChooser = new JFileChooser();
 389                         _fileChooser.setDialogType(JFileChooser.SAVE_DIALOG);
 390                         _fileChooser.addChoosableFileFilter(new GenericFileFilter("filetype.txt", new String[] {"txt", "text"}));
 391                         _fileChooser.addChoosableFileFilter(new GenericFileFilter("filetype.gpx", new String[] {"gpx"}));
 392                         _fileChooser.addChoosableFileFilter(new GenericFileFilter("filetype.kml", new String[] {"kml"}));
 393                         _fileChooser.setAcceptAllFileFilterUsed(true);
 394                         // start from directory in config which should be set
 395                         File configDir = Config.getWorkingDirectory();
 396                         if (configDir != null) {_fileChooser.setCurrentDirectory(configDir);}
 397                 }
 398                 if (_fileChooser.showSaveDialog(_parentFrame) == JFileChooser.APPROVE_OPTION)
 399                 {
 400                         File saveFile = _fileChooser.getSelectedFile();
 401                         String lineSeparator = System.getProperty("line.separator");
 402                         // Get coordinate format and altitude format
 403                         int coordFormat = Coordinate.FORMAT_NONE;
 404                         for (int i=0; i<_coordUnitsRadios.length; i++)
 405                                 if (_coordUnitsRadios[i].isSelected())
 406                                         coordFormat = FORMAT_COORDS[i];
 407                         int altitudeFormat = Altitude.FORMAT_NONE;
 408                         for (int i=0; i<_altitudeUnitsRadios.length; i++)
 409                         {
 410                                 if (_altitudeUnitsRadios[i].isSelected())
 411                                 {
 412                                         altitudeFormat = FORMAT_ALTS[i];
 413                                 }
 414                         }
 415                         // Get timestamp formats
 416                         int timestampFormat = Timestamp.FORMAT_ORIGINAL;
 417                         for (int i=0; i<_timestampUnitsRadios.length; i++)
 418                         {
 419                                 if (_timestampUnitsRadios[i].isSelected())
 420                                 {
 421                                         timestampFormat = FORMAT_TIMES[i];
 422                                 }
 423                         }
 424
 425                         // Check if file exists, and confirm overwrite if necessary
 426                         Object[] buttonTexts = {I18nManager.getText("button.overwrite"), I18nManager.getText("button.cancel")};
 427                         if (!saveFile.exists() || JOptionPane.showOptionDialog(_parentFrame,
 428                                         I18nManager.getText("dialog.save.overwrite.text"),
 429                                         I18nManager.getText("dialog.save.overwrite.title"), JOptionPane.YES_NO_OPTION,
 430                                         JOptionPane.WARNING_MESSAGE, null, buttonTexts, buttonTexts[1])
 431                                 == JOptionPane.YES_OPTION)
 432                         {
 433                                 try
 434                                 {
 435                                         // Create output file
 436                                         writer = new FileWriter(saveFile);
 437                                         // Determine delimiter character to use
 438                                         char delimiter = getDelimiter();
 439                                         FieldInfo info = null;
 440                                         Field field = null;
 441
 442                                         StringBuffer buffer = null;
 443                                         int numFields = _model.getRowCount();
 444                                         boolean firstField = true;
 445                                         // Write header row if required
 446                                         if (_headerRowCheckbox.isSelected())
 447                                         {
 448                                                 buffer = new StringBuffer();
 449                                                 for (int f=0; f<numFields; f++)
 450                                                 {
 451                                                         info = _model.getFieldInfo(f);
 452                                                         if (info.isSelected())
 453                                                         {
 454                                                                 if (!firstField)
 455                                                                 {
 456                                                                         // output field separator
 457                                                                         buffer.append(delimiter);
 458                                                                 }
 459                                                                 field = info.getField();
 460                                                                 buffer.append(field.getName());
 461                                                                 firstField = false;
 462                                                         }
 463                                                 }
 464                                                 writer.write(buffer.toString());
 465                                                 writer.write(lineSeparator);
 466                                         }
 467
 468                                         // Loop over points outputting each in turn to buffer
 469                                         int numPoints = _track.getNumPoints();
 470                                         for (int p=0; p<numPoints; p++)
 471                                         {
 472                                                 DataPoint point = _track.getPoint(p);
 473                                                 firstField = true;
 474                                                 buffer = new StringBuffer();
 475                                                 for (int f=0; f<numFields; f++)
 476                                                 {
 477                                                         info = _model.getFieldInfo(f);
 478                                                         if (info.isSelected())
 479                                                         {
 480                                                                 if (!firstField)
 481                                                                 {
 482                                                                         // output field separator
 483                                                                         buffer.append(delimiter);
 484                                                                 }
 485                                                                 field = info.getField();
 486                                                                 // Output field according to type
 487                                                                 if (field == Field.LATITUDE)
 488                                                                 {
 489                                                                         buffer.append(point.getLatitude().output(coordFormat));
 490                                                                 }
 491                                                                 else if (field == Field.LONGITUDE)
 492                                                                 {
 493                                                                         buffer.append(point.getLongitude().output(coordFormat));
 494                                                                 }
 495                                                                 else if (field == Field.ALTITUDE)
 496                                                                 {
 497                                                                         try
 498                                                                         {
 499                                                                                 buffer.append(point.getAltitude().getStringValue(altitudeFormat));
 500                                                                         }
 501                                                                         catch (NullPointerException npe) {}
 502                                                                 }
 503                                                                 else if (field == Field.TIMESTAMP)
 504                                                                 {
 505                                                                         if (point.hasTimestamp())
 506                                                                         {
 507                                                                                 if (timestampFormat == Timestamp.FORMAT_ORIGINAL) {
 508                                                                                         // output original string
 509                                                                                         buffer.append(point.getFieldValue(Field.TIMESTAMP));
 510                                                                                 }
 511                                                                                 else {
 512                                                                                         // format value accordingly
 513                                                                                         buffer.append(point.getTimestamp().getText(timestampFormat));
 514                                                                                 }
 515                                                                         }
 516                                                                 }
 517                                                                 else
 518                                                                 {
 519                                                                         String value = point.getFieldValue(field);
 520                                                                         if (value != null)
 521                                                                         {
 522                                                                                 buffer.append(value);
 523                                                                         }
 524                                                                 }
 525                                                                 firstField = false;
 526                                                         }
 527                                                 }
 528                                                 // Output to file
 529                                                 writer.write(buffer.toString());
 530                                                 writer.write(lineSeparator);
 531                                         }
 532                                         // Store directory in config for later
 533                                         Config.setWorkingDirectory(saveFile.getParentFile());
 534                                         // Save successful
 535                                         UpdateMessageBroker.informSubscribers(I18nManager.getText("confirm.save.ok1")
 536                                                  + " " + numPoints + " " + I18nManager.getText("confirm.save.ok2")
 537                                                  + " " + saveFile.getAbsolutePath());
 538                                         _app.informDataSaved();
 539                                 }
 540                                 catch (IOException ioe)
 541                                 {
 542                                         saveOK = false;
 543                                         JOptionPane.showMessageDialog(_parentFrame,
 544                                                 I18nManager.getText("error.save.failed") + ioe.getMessage(),
 545                                                 I18nManager.getText("error.save.dialogtitle"),
 546                                                 JOptionPane.ERROR_MESSAGE);
 547                                 }
 548                                 finally
 549                                 {
 550                                         // try to close file if it's open
 551                                         try
 552                                         {
 553                                                 if (writer != null)
 554                                                 {
 555                                                         writer.close();
 556                                                 }
 557                                         }
 558                                         catch (Exception e) {}
 559                                 }
 560                         }
 561                         else
 562                         {
 563                                 // Overwrite file confirm cancelled
 564                                 saveOK = false;
 565                         }
 566                 }
 567                 return saveOK;
 568         }
 569
 570
 571         /**
 572          * @return the selected delimiter character
 573          */
 574         private char getDelimiter()
 575         {
 576                 // Check the preset 4 delimiters
 577                 final char[] delimiters = {',', '\t', ';', ' '};
 578                 for (int i=0; i<4; i++)
 579                 {
 580                         if (_delimiterRadios[i].isSelected())
 581                         {
 582                                 return delimiters[i];
 583                         }
 584                 }
 585                 // Wasn't any of those so must be 'other'
 586                 return _otherDelimiterText.getText().charAt(0);
 587         }
 588 }