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         int     channel;
  37         int     telemetry;
  38
  39         boolean interrupted = false;
  40
  41         public String toString() {
  42                 return String.format("%-9.9s serial %-4d flight %-4d (channel %-2d %s)",
  43                                      callsign, serial, flight, channel, Altos.telemetry_name(telemetry));
  44         }
  45
  46         public String toShortString() {
  47                 return String.format("%s %d %d %d %d",
  48                                      callsign, serial, flight, channel, telemetry);
  49         }
  50
  51         public AltosScanResult(String in_callsign, int in_serial,
  52                                int in_flight, int in_channel, int in_telemetry) {
  53                 callsign = in_callsign;
  54                 serial = in_serial;
  55                 flight = in_flight;
  56                 channel = in_channel;
  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                         channel == other.channel &&
  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         AltosTelemetryReader            reader;
 111         private JList                   list;
 112         private JLabel                  scanning_label;
 113         private JButton                 cancel_button;
 114         private JButton                 monitor_button;
 115         javax.swing.Timer               timer;
 116         AltosScanResults                results = new AltosScanResults();
 117
 118         int                             telemetry;
 119         int                             channel;
 120
 121         final static int                timeout = 1200;
 122         TelemetryHandler                handler;
 123         Thread                          thread;
 124
 125         void scan_exception(Exception e) {
 126                 if (e instanceof FileNotFoundException) {
 127                         JOptionPane.showMessageDialog(owner,
 128                                                       String.format("Cannot open device \"%s\"",
 129                                                                     device.toShortString()),
 130                                                       "Cannot open target device",
 131                                                       JOptionPane.ERROR_MESSAGE);
 132                 } else if (e instanceof AltosSerialInUseException) {
 133                         JOptionPane.showMessageDialog(owner,
 134                                                       String.format("Device \"%s\" already in use",
 135                                                                     device.toShortString()),
 136                                                       "Device in use",
 137                                                       JOptionPane.ERROR_MESSAGE);
 138                 } else if (e instanceof IOException) {
 139                         IOException ee = (IOException) e;
 140                         JOptionPane.showMessageDialog(owner,
 141                                                       device.toShortString(),
 142                                                       ee.getLocalizedMessage(),
 143                                                       JOptionPane.ERROR_MESSAGE);
 144                 } else {
 145                         JOptionPane.showMessageDialog(owner,
 146                                                       String.format("Connection to \"%s\" failed",
 147                                                                     device.toShortString()),
 148                                                       "Connection Failed",
 149                                                       JOptionPane.ERROR_MESSAGE);
 150                 }
 151                 close();
 152         }
 153
 154         class TelemetryHandler implements Runnable {
 155
 156                 public void run() {
 157
 158                         boolean interrupted = false;
 159
 160                         try {
 161                                 for (;;) {
 162                                         try {
 163                                                 AltosRecord     record = reader.read();
 164                                                 if (record == null)
 165                                                         continue;
 166                                                 if ((record.seen & AltosRecord.seen_flight) != 0) {
 167                                                         final AltosScanResult   result = new AltosScanResult(record.callsign,
 168                                                                                                      record.serial,
 169                                                                                                      record.flight,
 170                                                                                                      channel,
 171                                                                                                      telemetry);
 172                                                         Runnable r = new Runnable() {
 173                                                                         public void run() {
 174                                                                                 results.add(result);
 175                                                                         }
 176                                                                 };
 177                                                         SwingUtilities.invokeLater(r);
 178                                                 }
 179                                         } catch (ParseException pp) {
 180                                         } catch (AltosCRCException ce) {
 181                                         }
 182                                 }
 183                         } catch (InterruptedException ee) {
 184                                 interrupted = true;
 185                         } catch (IOException ie) {
 186                         } finally {
 187                                 reader.close(interrupted);
 188                         }
 189                 }
 190         }
 191
 192         void set_label() {
 193                 scanning_label.setText(String.format("Scanning: channel %d %s",
 194                                                      channel,
 195                                                      Altos.telemetry_name(telemetry)));
 196         }
 197
 198         void next() {
 199                 reader.serial.set_monitor(false);
 200                 try {
 201                         Thread.sleep(100);
 202                 } catch (InterruptedException ie){
 203                 }
 204                 ++channel;
 205                 if (channel > 9) {
 206                         channel = 0;
 207                         ++telemetry;
 208                         if (telemetry > Altos.ao_telemetry_max)
 209                                 telemetry = Altos.ao_telemetry_min;
 210                         reader.serial.set_telemetry(telemetry);
 211                 }
 212                 reader.serial.set_channel(channel);
 213                 set_label();
 214                 reader.serial.set_monitor(true);
 215         }
 216
 217
 218         void close() {
 219                 if (thread != null && thread.isAlive()) {
 220                         thread.interrupt();
 221                         try {
 222                                 thread.join();
 223                         } catch (InterruptedException ie) {}
 224                 }
 225                 thread = null;
 226                 if (timer != null)
 227                         timer.stop();
 228                 setVisible(false);
 229                 dispose();
 230         }
 231
 232         void tick_timer() {
 233                 next();
 234         }
 235
 236         public void actionPerformed(ActionEvent e) {
 237                 String cmd = e.getActionCommand();
 238
 239                 if (cmd.equals("cancel"))
 240                         close();
 241
 242                 if (cmd.equals("tick"))
 243                         tick_timer();
 244
 245                 if (cmd.equals("monitor")) {
 246                         close();
 247                         AltosScanResult r = (AltosScanResult) (list.getSelectedValue());
 248                         if (r != null) {
 249                                 if (device != null) {
 250                                         if (reader != null) {
 251                                                 reader.set_telemetry(r.telemetry);
 252                                                 reader.set_channel(r.channel);
 253                                                 owner.telemetry_window(device);
 254                                         }
 255                                 }
 256                         }
 257                 }
 258         }
 259
 260         /* A window listener to catch closing events and tell the config code */
 261         class ConfigListener extends WindowAdapter {
 262                 AltosScanUI     ui;
 263
 264                 public ConfigListener(AltosScanUI this_ui) {
 265                         ui = this_ui;
 266                 }
 267
 268                 public void windowClosing(WindowEvent e) {
 269                         ui.actionPerformed(new ActionEvent(e.getSource(),
 270                                                            ActionEvent.ACTION_PERFORMED,
 271                                                            "close"));
 272                 }
 273         }
 274
 275         private boolean open() {
 276                 device = AltosDeviceDialog.show(owner, Altos.product_basestation);
 277                 if (device == null)
 278                         return false;
 279                 try {
 280                         reader = new AltosTelemetryReader(device);
 281                         reader.serial.set_channel(channel);
 282                         reader.serial.set_telemetry(telemetry);
 283                         try {
 284                                 Thread.sleep(100);
 285                         } catch (InterruptedException ie) {
 286                         }
 287                         reader.flush();
 288                         handler = new TelemetryHandler();
 289                         thread = new Thread(handler);
 290                         thread.start();
 291                         return true;
 292                 } catch (FileNotFoundException ee) {
 293                         JOptionPane.showMessageDialog(owner,
 294                                                       String.format("Cannot open device \"%s\"",
 295                                                                     device.toShortString()),
 296                                                       "Cannot open target device",
 297                                                       JOptionPane.ERROR_MESSAGE);
 298                 } catch (AltosSerialInUseException si) {
 299                         JOptionPane.showMessageDialog(owner,
 300                                                       String.format("Device \"%s\" already in use",
 301                                                                     device.toShortString()),
 302                                                       "Device in use",
 303                                                       JOptionPane.ERROR_MESSAGE);
 304                 } catch (IOException ee) {
 305                         JOptionPane.showMessageDialog(owner,
 306                                                       device.toShortString(),
 307                                                       "Unkonwn I/O error",
 308                                                       JOptionPane.ERROR_MESSAGE);
 309                 }
 310                 if (reader != null)
 311                         reader.close(false);
 312                 return false;
 313         }
 314
 315         public AltosScanUI(AltosUI in_owner) {
 316
 317                 owner = in_owner;
 318
 319                 channel = 0;
 320                 telemetry = Altos.ao_telemetry_min;
 321
 322                 if (!open())
 323                         return;
 324
 325                 Container               pane = getContentPane();
 326                 GridBagConstraints      c = new GridBagConstraints();
 327                 Insets                  i = new Insets(4,4,4,4);
 328
 329                 timer = new javax.swing.Timer(timeout, this);
 330                 timer.setActionCommand("tick");
 331                 timer.restart();
 332
 333                 owner = in_owner;
 334
 335                 pane.setLayout(new GridBagLayout());
 336
 337                 scanning_label = new JLabel("Scanning:");
 338
 339                 set_label();
 340
 341                 c.fill = GridBagConstraints.NONE;
 342                 c.anchor = GridBagConstraints.CENTER;
 343                 c.insets = i;
 344                 c.weightx = 1;
 345                 c.weighty = 1;
 346
 347                 c.gridx = 0;
 348                 c.gridy = 0;
 349                 c.gridwidth = 2;
 350                 c.anchor = GridBagConstraints.CENTER;
 351
 352                 pane.add(scanning_label, c);
 353
 354                 list = new JList(results) {
 355                                 //Subclass JList to workaround bug 4832765, which can cause the
 356                                 //scroll pane to not let the user easily scroll up to the beginning
 357                                 //of the list.  An alternative would be to set the unitIncrement
 358                                 //of the JScrollBar to a fixed value. You wouldn't get the nice
 359                                 //aligned scrolling, but it should work.
 360                                 public int getScrollableUnitIncrement(Rectangle visibleRect,
 361                                                                       int orientation,
 362                                                                       int direction) {
 363                                         int row;
 364                                         if (orientation == SwingConstants.VERTICAL &&
 365                                             direction < 0 && (row = getFirstVisibleIndex()) != -1) {
 366                                                 Rectangle r = getCellBounds(row, row);
 367                                                 if ((r.y == visibleRect.y) && (row != 0))  {
 368                                                         Point loc = r.getLocation();
 369                                                         loc.y--;
 370                                                         int prevIndex = locationToIndex(loc);
 371                                                         Rectangle prevR = getCellBounds(prevIndex, prevIndex);
 372
 373                                                         if (prevR == null || prevR.y >= r.y) {
 374                                                                 return 0;
 375                                                         }
 376                                                         return prevR.height;
 377                                                 }
 378                                         }
 379                                         return super.getScrollableUnitIncrement(
 380                                                 visibleRect, orientation, direction);
 381                                 }
 382                         };
 383
 384                 list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 385                 list.setLayoutOrientation(JList.HORIZONTAL_WRAP);
 386                 list.setVisibleRowCount(-1);
 387
 388                 list.addMouseListener(new MouseAdapter() {
 389                                  public void mouseClicked(MouseEvent e) {
 390                                          if (e.getClickCount() == 2) {
 391                                                  monitor_button.doClick(); //emulate button click
 392                                          }
 393                                  }
 394                         });
 395                 JScrollPane listScroller = new JScrollPane(list);
 396                 listScroller.setPreferredSize(new Dimension(400, 80));
 397                 listScroller.setAlignmentX(LEFT_ALIGNMENT);
 398
 399                 //Create a container so that we can add a title around
 400                 //the scroll pane.  Can't add a title directly to the
 401                 //scroll pane because its background would be white.
 402                 //Lay out the label and scroll pane from top to bottom.
 403                 JPanel listPane = new JPanel();
 404                 listPane.setLayout(new BoxLayout(listPane, BoxLayout.PAGE_AXIS));
 405
 406                 JLabel label = new JLabel("Select Device");
 407                 label.setLabelFor(list);
 408                 listPane.add(label);
 409                 listPane.add(Box.createRigidArea(new Dimension(0,5)));
 410                 listPane.add(listScroller);
 411                 listPane.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
 412
 413                 c.fill = GridBagConstraints.BOTH;
 414                 c.anchor = GridBagConstraints.CENTER;
 415                 c.insets = i;
 416                 c.weightx = 1;
 417                 c.weighty = 1;
 418
 419                 c.gridx = 0;
 420                 c.gridy = 1;
 421                 c.gridwidth = 2;
 422                 c.anchor = GridBagConstraints.CENTER;
 423
 424                 pane.add(listPane, c);
 425
 426                 cancel_button = new JButton("Cancel");
 427                 cancel_button.addActionListener(this);
 428                 cancel_button.setActionCommand("cancel");
 429
 430                 c.fill = GridBagConstraints.NONE;
 431                 c.anchor = GridBagConstraints.CENTER;
 432                 c.insets = i;
 433                 c.weightx = 1;
 434                 c.weighty = 1;
 435
 436                 c.gridx = 0;
 437                 c.gridy = 2;
 438                 c.gridwidth = 1;
 439                 c.anchor = GridBagConstraints.CENTER;
 440
 441                 pane.add(cancel_button, c);
 442
 443                 monitor_button = new JButton("Monitor");
 444                 monitor_button.addActionListener(this);
 445                 monitor_button.setActionCommand("monitor");
 446
 447                 c.fill = GridBagConstraints.NONE;
 448                 c.anchor = GridBagConstraints.CENTER;
 449                 c.insets = i;
 450                 c.weightx = 1;
 451                 c.weighty = 1;
 452
 453                 c.gridx = 1;
 454                 c.gridy = 2;
 455                 c.gridwidth = 1;
 456                 c.anchor = GridBagConstraints.CENTER;
 457
 458                 pane.add(monitor_button, c);
 459
 460                 pack();
 461                 setLocationRelativeTo(owner);
 462
 463                 addWindowListener(new ConfigListener(this));
 464
 465                 setVisible(true);
 466         }
 467 }