git.gag.com Git - fw/altos/blob - altosui/AltosScanUI.java

   1 /*
   2  * Copyright © 2011 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package altosui;
  19
  20 import java.awt.*;
  21 import java.awt.event.*;
  22 import javax.swing.*;
  23 import javax.swing.filechooser.FileNameExtensionFilter;
  24 import javax.swing.table.*;
  25 import javax.swing.event.*;
  26 import java.io.*;
  27 import java.util.*;
  28 import java.text.*;
  29 import java.util.prefs.*;
  30 import java.util.concurrent.*;
  31
  32 class AltosScanResult {
  33         String          callsign;
  34         int             serial;
  35         int             flight;
  36         AltosFrequency  frequency;
  37         int             telemetry;
  38
  39         boolean interrupted = false;
  40
  41         public String toString() {
  42                 return String.format("%-9.9s serial %-4d flight %-4d (%s %s)",
  43                                      callsign, serial, flight, frequency.toShortString(), Altos.telemetry_name(telemetry));
  44         }
  45
  46         public String toShortString() {
  47                 return String.format("%s %d %d %7.3f %d",
  48                                      callsign, serial, flight, frequency, telemetry);
  49         }
  50
  51         public AltosScanResult(String in_callsign, int in_serial,
  52                                int in_flight, AltosFrequency in_frequency, int in_telemetry) {
  53                 callsign = in_callsign;
  54                 serial = in_serial;
  55                 flight = in_flight;
  56                 frequency = in_frequency;
  57                 telemetry = in_telemetry;
  58         }
  59
  60         public boolean equals(AltosScanResult other) {
  61                 return (callsign.equals(other.callsign) &&
  62                         serial == other.serial &&
  63                         flight == other.flight &&
  64                         frequency.frequency == other.frequency.frequency &&
  65                         telemetry == other.telemetry);
  66         }
  67 }
  68
  69 class AltosScanResults extends LinkedList<AltosScanResult> implements ListModel {
  70
  71         LinkedList<ListDataListener>    listeners = new LinkedList<ListDataListener>();
  72
  73         public boolean add(AltosScanResult r) {
  74                 for (AltosScanResult old : this)
  75                         if (old.equals(r))
  76                                 return true;
  77
  78                 super.add(r);
  79                 ListDataEvent   de = new ListDataEvent(this,
  80                                                        ListDataEvent.INTERVAL_ADDED,
  81                                                        this.size() - 2, this.size() - 1);
  82                 for (ListDataListener l : listeners)
  83                         l.contentsChanged(de);
  84                 return true;
  85         }
  86
  87         public void addListDataListener(ListDataListener l) {
  88                 listeners.add(l);
  89         }
  90
  91         public void removeListDataListener(ListDataListener l) {
  92                 listeners.remove(l);
  93         }
  94
  95         public AltosScanResult getElementAt(int i) {
  96                 return this.get(i);
  97         }
  98
  99         public int getSize() {
 100                 return this.size();
 101         }
 102 }
 103
 104 public class AltosScanUI
 105         extends JDialog
 106         implements ActionListener
 107 {
 108         AltosUI                         owner;
 109         AltosDevice                     device;
 110         AltosConfigData                 config_data;
 111         AltosTelemetryReader            reader;
 112         private JList                   list;
 113         private JLabel                  scanning_label;
 114         private JLabel                  frequency_label;
 115         private JLabel                  telemetry_label;
 116         private JButton                 cancel_button;
 117         private JButton                 monitor_button;
 118         javax.swing.Timer               timer;
 119         AltosScanResults                results = new AltosScanResults();
 120
 121         int                             telemetry;
 122
 123         final static int                timeout = 1200;
 124         TelemetryHandler                handler;
 125         Thread                          thread;
 126         AltosFrequency[]                frequencies;
 127         int                             frequency_index;
 128
 129         void scan_exception(Exception e) {
 130                 if (e instanceof FileNotFoundException) {
 131                         JOptionPane.showMessageDialog(owner,
 132                                                       String.format("Cannot open device \"%s\"",
 133                                                                     device.toShortString()),
 134                                                       "Cannot open target device",
 135                                                       JOptionPane.ERROR_MESSAGE);
 136                 } else if (e instanceof AltosSerialInUseException) {
 137                         JOptionPane.showMessageDialog(owner,
 138                                                       String.format("Device \"%s\" already in use",
 139                                                                     device.toShortString()),
 140                                                       "Device in use",
 141                                                       JOptionPane.ERROR_MESSAGE);
 142                 } else if (e instanceof IOException) {
 143                         IOException ee = (IOException) e;
 144                         JOptionPane.showMessageDialog(owner,
 145                                                       device.toShortString(),
 146                                                       ee.getLocalizedMessage(),
 147                                                       JOptionPane.ERROR_MESSAGE);
 148                 } else {
 149                         JOptionPane.showMessageDialog(owner,
 150                                                       String.format("Connection to \"%s\" failed",
 151                                                                     device.toShortString()),
 152                                                       "Connection Failed",
 153                                                       JOptionPane.ERROR_MESSAGE);
 154                 }
 155                 close();
 156         }
 157
 158         class TelemetryHandler implements Runnable {
 159
 160                 public void run() {
 161
 162                         boolean interrupted = false;
 163
 164                         try {
 165                                 for (;;) {
 166                                         try {
 167                                                 AltosRecord     record = reader.read();
 168                                                 if (record == null)
 169                                                         continue;
 170                                                 if ((record.seen & AltosRecord.seen_flight) != 0) {
 171                                                         final AltosScanResult   result = new AltosScanResult(record.callsign,
 172                                                                                                      record.serial,
 173                                                                                                      record.flight,
 174                                                                                                      frequencies[frequency_index],
 175                                                                                                      telemetry);
 176                                                         Runnable r = new Runnable() {
 177                                                                         public void run() {
 178                                                                                 results.add(result);
 179                                                                         }
 180                                                                 };
 181                                                         SwingUtilities.invokeLater(r);
 182                                                 }
 183                                         } catch (ParseException pp) {
 184                                         } catch (AltosCRCException ce) {
 185                                         }
 186                                 }
 187                         } catch (InterruptedException ee) {
 188                                 interrupted = true;
 189                         } catch (IOException ie) {
 190                         } finally {
 191                                 reader.close(interrupted);
 192                         }
 193                 }
 194         }
 195
 196         void set_label() {
 197                 frequency_label.setText(String.format("Frequency: %s", frequencies[frequency_index].toString()));
 198                 telemetry_label.setText(String.format("Telemetry: %s", Altos.telemetry_name(telemetry)));
 199         }
 200
 201         void set_telemetry() {
 202                 reader.set_telemetry(telemetry);
 203         }
 204
 205         void set_frequency() throws InterruptedException, TimeoutException {
 206                 reader.set_frequency(frequencies[frequency_index].frequency);
 207         }
 208
 209         void next() throws InterruptedException, TimeoutException {
 210                 reader.serial.set_monitor(false);
 211                 Thread.sleep(100);
 212                 ++frequency_index;
 213                 if (frequency_index >= frequencies.length) {
 214                         frequency_index = 0;
 215                         ++telemetry;
 216                         if (telemetry > Altos.ao_telemetry_max)
 217                                 telemetry = Altos.ao_telemetry_min;
 218                         set_telemetry();
 219                 }
 220                 set_frequency();
 221                 set_label();
 222                 reader.serial.set_monitor(true);
 223         }
 224
 225
 226         void close() {
 227                 if (thread != null && thread.isAlive()) {
 228                         thread.interrupt();
 229                         try {
 230                                 thread.join();
 231                         } catch (InterruptedException ie) {}
 232                 }
 233                 thread = null;
 234                 if (timer != null)
 235                         timer.stop();
 236                 setVisible(false);
 237                 dispose();
 238         }
 239
 240         void tick_timer() throws InterruptedException, TimeoutException {
 241                 next();
 242         }
 243
 244         public void actionPerformed(ActionEvent e) {
 245                 String cmd = e.getActionCommand();
 246
 247                 try {
 248                         if (cmd.equals("cancel"))
 249                                 close();
 250
 251                         if (cmd.equals("tick"))
 252                                 tick_timer();
 253
 254                         if (cmd.equals("monitor")) {
 255                                 close();
 256                                 AltosScanResult r = (AltosScanResult) (list.getSelectedValue());
 257                                 if (r != null) {
 258                                         if (device != null) {
 259                                                 if (reader != null) {
 260                                                         reader.set_telemetry(r.telemetry);
 261                                                         reader.set_frequency(r.frequency.frequency);
 262                                                         reader.save_frequency();
 263                                                         owner.telemetry_window(device);
 264                                                 }
 265                                         }
 266                                 }
 267                         }
 268                 } catch (TimeoutException te) {
 269                         close();
 270                 } catch (InterruptedException ie) {
 271                         close();
 272                 }
 273         }
 274
 275         /* A window listener to catch closing events and tell the config code */
 276         class ConfigListener extends WindowAdapter {
 277                 AltosScanUI     ui;
 278
 279                 public ConfigListener(AltosScanUI this_ui) {
 280                         ui = this_ui;
 281                 }
 282
 283                 public void windowClosing(WindowEvent e) {
 284                         ui.actionPerformed(new ActionEvent(e.getSource(),
 285                                                            ActionEvent.ACTION_PERFORMED,
 286                                                            "close"));
 287                 }
 288         }
 289
 290         private boolean open() {
 291                 device = AltosDeviceDialog.show(owner, Altos.product_basestation);
 292                 if (device == null)
 293                         return false;
 294                 try {
 295                         reader = new AltosTelemetryReader(device);
 296                         set_frequency();
 297                         set_telemetry();
 298                         try {
 299                                 Thread.sleep(100);
 300                         } catch (InterruptedException ie) {
 301                         }
 302                         reader.flush();
 303                         handler = new TelemetryHandler();
 304                         thread = new Thread(handler);
 305                         thread.start();
 306                         return true;
 307                 } catch (FileNotFoundException ee) {
 308                         JOptionPane.showMessageDialog(owner,
 309                                                       String.format("Cannot open device \"%s\"",
 310                                                                     device.toShortString()),
 311                                                       "Cannot open target device",
 312                                                       JOptionPane.ERROR_MESSAGE);
 313                 } catch (AltosSerialInUseException si) {
 314                         JOptionPane.showMessageDialog(owner,
 315                                                       String.format("Device \"%s\" already in use",
 316                                                                     device.toShortString()),
 317                                                       "Device in use",
 318                                                       JOptionPane.ERROR_MESSAGE);
 319                 } catch (IOException ee) {
 320                         JOptionPane.showMessageDialog(owner,
 321                                                       device.toShortString(),
 322                                                       "Unkonwn I/O error",
 323                                                       JOptionPane.ERROR_MESSAGE);
 324                 } catch (TimeoutException te) {
 325                         JOptionPane.showMessageDialog(owner,
 326                                                       device.toShortString(),
 327                                                       "Timeout error",
 328                                                       JOptionPane.ERROR_MESSAGE);
 329                 } catch (InterruptedException ie) {
 330                         JOptionPane.showMessageDialog(owner,
 331                                                       device.toShortString(),
 332                                                       "Interrupted exception",
 333                                                       JOptionPane.ERROR_MESSAGE);
 334                 }
 335                 if (reader != null)
 336                         reader.close(false);
 337                 return false;
 338         }
 339
 340         public AltosScanUI(AltosUI in_owner) {
 341
 342                 owner = in_owner;
 343
 344                 frequencies = AltosPreferences.common_frequencies();
 345                 frequency_index = 0;
 346                 telemetry = Altos.ao_telemetry_min;
 347
 348                 if (!open())
 349                         return;
 350
 351                 Container               pane = getContentPane();
 352                 GridBagConstraints      c = new GridBagConstraints();
 353                 Insets                  i = new Insets(4,4,4,4);
 354
 355                 timer = new javax.swing.Timer(timeout, this);
 356                 timer.setActionCommand("tick");
 357                 timer.restart();
 358
 359                 owner = in_owner;
 360
 361                 pane.setLayout(new GridBagLayout());
 362
 363                 scanning_label = new JLabel("Scanning:");
 364                 frequency_label = new JLabel("");
 365                 telemetry_label = new JLabel("");
 366
 367                 set_label();
 368
 369                 c.fill = GridBagConstraints.NONE;
 370                 c.anchor = GridBagConstraints.WEST;
 371                 c.insets = i;
 372                 c.weightx = 1;
 373                 c.weighty = 1;
 374
 375                 c.gridx = 0;
 376                 c.gridy = 0;
 377                 c.gridwidth = 2;
 378
 379                 pane.add(scanning_label, c);
 380                 c.gridy = 1;
 381                 pane.add(frequency_label, c);
 382                 c.gridy = 2;
 383                 pane.add(telemetry_label, c);
 384
 385                 list = new JList(results) {
 386                                 //Subclass JList to workaround bug 4832765, which can cause the
 387                                 //scroll pane to not let the user easily scroll up to the beginning
 388                                 //of the list.  An alternative would be to set the unitIncrement
 389                                 //of the JScrollBar to a fixed value. You wouldn't get the nice
 390                                 //aligned scrolling, but it should work.
 391                                 public int getScrollableUnitIncrement(Rectangle visibleRect,
 392                                                                       int orientation,
 393                                                                       int direction) {
 394                                         int row;
 395                                         if (orientation == SwingConstants.VERTICAL &&
 396                                             direction < 0 && (row = getFirstVisibleIndex()) != -1) {
 397                                                 Rectangle r = getCellBounds(row, row);
 398                                                 if ((r.y == visibleRect.y) && (row != 0))  {
 399                                                         Point loc = r.getLocation();
 400                                                         loc.y--;
 401                                                         int prevIndex = locationToIndex(loc);
 402                                                         Rectangle prevR = getCellBounds(prevIndex, prevIndex);
 403
 404                                                         if (prevR == null || prevR.y >= r.y) {
 405                                                                 return 0;
 406                                                         }
 407                                                         return prevR.height;
 408                                                 }
 409                                         }
 410                                         return super.getScrollableUnitIncrement(
 411                                                 visibleRect, orientation, direction);
 412                                 }
 413                         };
 414
 415                 list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 416                 list.setLayoutOrientation(JList.HORIZONTAL_WRAP);
 417                 list.setVisibleRowCount(-1);
 418
 419                 list.addMouseListener(new MouseAdapter() {
 420                                  public void mouseClicked(MouseEvent e) {
 421                                          if (e.getClickCount() == 2) {
 422                                                  monitor_button.doClick(); //emulate button click
 423                                          }
 424                                  }
 425                         });
 426                 JScrollPane listScroller = new JScrollPane(list);
 427                 listScroller.setPreferredSize(new Dimension(400, 80));
 428                 listScroller.setAlignmentX(LEFT_ALIGNMENT);
 429
 430                 //Create a container so that we can add a title around
 431                 //the scroll pane.  Can't add a title directly to the
 432                 //scroll pane because its background would be white.
 433                 //Lay out the label and scroll pane from top to bottom.
 434                 JPanel listPane = new JPanel();
 435                 listPane.setLayout(new BoxLayout(listPane, BoxLayout.PAGE_AXIS));
 436
 437                 JLabel label = new JLabel("Select Device");
 438                 label.setLabelFor(list);
 439                 listPane.add(label);
 440                 listPane.add(Box.createRigidArea(new Dimension(0,5)));
 441                 listPane.add(listScroller);
 442                 listPane.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
 443
 444                 c.fill = GridBagConstraints.BOTH;
 445                 c.anchor = GridBagConstraints.CENTER;
 446                 c.insets = i;
 447                 c.weightx = 1;
 448                 c.weighty = 1;
 449
 450                 c.gridx = 0;
 451                 c.gridy = 3;
 452                 c.gridwidth = 2;
 453                 c.anchor = GridBagConstraints.CENTER;
 454
 455                 pane.add(listPane, c);
 456
 457                 cancel_button = new JButton("Cancel");
 458                 cancel_button.addActionListener(this);
 459                 cancel_button.setActionCommand("cancel");
 460
 461                 c.fill = GridBagConstraints.NONE;
 462                 c.anchor = GridBagConstraints.CENTER;
 463                 c.insets = i;
 464                 c.weightx = 1;
 465                 c.weighty = 1;
 466
 467                 c.gridx = 0;
 468                 c.gridy = 4;
 469                 c.gridwidth = 1;
 470                 c.anchor = GridBagConstraints.CENTER;
 471
 472                 pane.add(cancel_button, c);
 473
 474                 monitor_button = new JButton("Monitor");
 475                 monitor_button.addActionListener(this);
 476                 monitor_button.setActionCommand("monitor");
 477
 478                 c.fill = GridBagConstraints.NONE;
 479                 c.anchor = GridBagConstraints.CENTER;
 480                 c.insets = i;
 481                 c.weightx = 1;
 482                 c.weighty = 1;
 483
 484                 c.gridx = 1;
 485                 c.gridy = 4;
 486                 c.gridwidth = 1;
 487                 c.anchor = GridBagConstraints.CENTER;
 488
 489                 pane.add(monitor_button, c);
 490
 491                 pack();
 492                 setLocationRelativeTo(owner);
 493
 494                 addWindowListener(new ConfigListener(this));
 495
 496                 setVisible(true);
 497         }
 498 }