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