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         boolean interrupted = false;
  39
  40         public String toString() {
  41                 return String.format("%-9.9s %4d %4d %2d %2d",
  42                                      callsign, serial, flight, channel, telemetry);
  43         }
  44
  45         public String toShortString() {
  46                 return String.format("%s %d %d %d %d",
  47                                      callsign, serial, flight, channel, telemetry);
  48         }
  49
  50         public AltosScanResult(String in_callsign, int in_serial,
  51                                int in_flight, int in_channel, int in_telemetry) {
  52                 callsign = in_callsign;
  53                 serial = in_serial;
  54                 flight = in_flight;
  55                 channel = in_channel;
  56                 telemetry = in_telemetry;
  57         }
  58
  59         public boolean equals(AltosScanResult other) {
  60                 return (callsign.equals(other.callsign) &&
  61                         serial == other.serial &&
  62                         flight == other.flight &&
  63                         channel == other.channel &&
  64                         telemetry == other.telemetry);
  65         }
  66 }
  67
  68 class AltosScanResults extends LinkedList<AltosScanResult> implements ListModel {
  69
  70         LinkedList<ListDataListener>    listeners = new LinkedList<ListDataListener>();
  71
  72         public boolean add(AltosScanResult r) {
  73                 for (AltosScanResult old : this)
  74                         if (old.equals(r))
  75                                 return true;
  76
  77                 super.add(r);
  78                 ListDataEvent   de = new ListDataEvent(this,
  79                                                        ListDataEvent.INTERVAL_ADDED,
  80                                                        this.size() - 2, this.size() - 1);
  81                 for (ListDataListener l : listeners)
  82                         l.contentsChanged(de);
  83                 return true;
  84         }
  85
  86         public void addListDataListener(ListDataListener l) {
  87                 listeners.add(l);
  88         }
  89
  90         public void removeListDataListener(ListDataListener l) {
  91                 listeners.remove(l);
  92         }
  93
  94         public AltosScanResult getElementAt(int i) {
  95                 return this.get(i);
  96         }
  97
  98         public int getSize() {
  99                 return this.size();
 100         }
 101 }
 102
 103 public class AltosScanUI
 104         extends JDialog
 105         implements ActionListener
 106 {
 107         JFrame                          owner;
 108         AltosDevice                     device;
 109         AltosTelemetryReader            reader;
 110         private JList                   list;
 111         private JLabel                  channel_label;
 112         private JLabel                  monitor_label;
 113         private JButton                 ok_button;
 114         javax.swing.Timer               timer;
 115         AltosScanResults                results = new AltosScanResults();
 116
 117         static final int[]              monitors = { Altos.ao_telemetry_split_len,
 118                                                      Altos.ao_telemetry_legacy_len };
 119         int                             monitor;
 120         int                             channel;
 121
 122         final static int                timeout = 5 * 1000;
 123         TelemetryHandler                handler;
 124         Thread                          thread;
 125
 126         void scan_exception(Exception e) {
 127                 if (e instanceof FileNotFoundException) {
 128                         JOptionPane.showMessageDialog(owner,
 129                                                       String.format("Cannot open device \"%s\"",
 130                                                                     device.toShortString()),
 131                                                       "Cannot open target device",
 132                                                       JOptionPane.ERROR_MESSAGE);
 133                 } else if (e instanceof AltosSerialInUseException) {
 134                         JOptionPane.showMessageDialog(owner,
 135                                                       String.format("Device \"%s\" already in use",
 136                                                                     device.toShortString()),
 137                                                       "Device in use",
 138                                                       JOptionPane.ERROR_MESSAGE);
 139                 } else if (e instanceof IOException) {
 140                         IOException ee = (IOException) e;
 141                         JOptionPane.showMessageDialog(owner,
 142                                                       device.toShortString(),
 143                                                       ee.getLocalizedMessage(),
 144                                                       JOptionPane.ERROR_MESSAGE);
 145                 } else {
 146                         JOptionPane.showMessageDialog(owner,
 147                                                       String.format("Connection to \"%s\" failed",
 148                                                                     device.toShortString()),
 149                                                       "Connection Failed",
 150                                                       JOptionPane.ERROR_MESSAGE);
 151                 }
 152                 close();
 153         }
 154
 155         class TelemetryHandler implements Runnable {
 156
 157                 public void run() {
 158
 159                         boolean interrupted = false;
 160
 161                         try {
 162                                 for (;;) {
 163                                         try {
 164                                                 AltosRecord     record = reader.read();
 165                                                 if (record == null)
 166                                                         break;
 167                                                 if ((record.seen & AltosRecord.seen_flight) != 0) {
 168                                                         AltosScanResult result = new AltosScanResult(record.callsign,
 169                                                                                                      record.serial,
 170                                                                                                      record.flight,
 171                                                                                                      channel,
 172                                                                                                      monitor);
 173                                                         results.add(result);
 174                                                 }
 175                                         } catch (ParseException pp) {
 176                                                 System.out.printf("Parse error: %d \"%s\"\n", pp.getErrorOffset(), pp.getMessage());
 177                                         } catch (AltosCRCException ce) {
 178                                         }
 179                                 }
 180                         } catch (InterruptedException ee) {
 181                                 interrupted = true;
 182                         } catch (IOException ie) {
 183                         } finally {
 184                                 reader.close(interrupted);
 185                         }
 186                 }
 187         }
 188
 189         void set_channel() {
 190                 reader.serial.set_channel(channel);
 191         }
 192
 193         void set_monitor() {
 194                 reader.serial.set_telemetry(monitors[monitor]);
 195         }
 196
 197         void next() {
 198                 ++channel;
 199                 if (channel == 10) {
 200                         channel = 0;
 201                         ++monitor;
 202                         if (monitor == monitors.length)
 203                                 monitor = 0;
 204                         set_monitor();
 205                 }
 206                 set_channel();
 207         }
 208
 209
 210         void close() {
 211                 if (thread != null && thread.isAlive()) {
 212                         thread.interrupt();
 213                         try {
 214                                 thread.join();
 215                         } catch (InterruptedException ie) {}
 216                 }
 217                 thread = null;
 218                 if (timer != null)
 219                         timer.stop();
 220                 setVisible(false);
 221                 dispose();
 222         }
 223
 224         void tick_timer() {
 225                 next();
 226         }
 227
 228         public void actionPerformed(ActionEvent e) {
 229                 String cmd = e.getActionCommand();
 230
 231                 if (cmd.equals("close")) {
 232                         close();
 233                 }
 234         }
 235
 236         /* A window listener to catch closing events and tell the config code */
 237         class ConfigListener extends WindowAdapter {
 238                 AltosScanUI     ui;
 239
 240                 public ConfigListener(AltosScanUI this_ui) {
 241                         ui = this_ui;
 242                 }
 243
 244                 public void windowClosing(WindowEvent e) {
 245                         ui.actionPerformed(new ActionEvent(e.getSource(),
 246                                                            ActionEvent.ACTION_PERFORMED,
 247                                                            "close"));
 248                 }
 249         }
 250
 251         private boolean open() {
 252                 device = AltosDeviceDialog.show(owner, Altos.product_any);
 253                 if (device != null) {
 254                         try {
 255                                 reader = new AltosTelemetryReader(device);
 256                                 set_channel();
 257                                 set_monitor();
 258                                 handler = new TelemetryHandler();
 259                                 thread = new Thread(handler);
 260                                 thread.start();
 261                                 return true;
 262                         } catch (Exception e) {
 263                                 scan_exception(e);
 264                         }
 265                 }
 266                 return false;
 267         }
 268
 269         public AltosScanUI(JFrame in_owner) {
 270
 271                 owner = in_owner;
 272
 273                 if (!open())
 274                         return;
 275
 276                 Container               pane = getContentPane();
 277                 GridBagConstraints      c = new GridBagConstraints();
 278                 Insets                  i = new Insets(4,4,4,4);
 279
 280                 timer = new javax.swing.Timer(timeout, this);
 281                 timer.setActionCommand("tick");
 282                 timer.restart();
 283
 284                 owner = in_owner;
 285
 286                 pane.setLayout(new GridBagLayout());
 287
 288                 c.fill = GridBagConstraints.NONE;
 289                 c.anchor = GridBagConstraints.CENTER;
 290                 c.insets = i;
 291                 c.weightx = 1;
 292                 c.weighty = 1;
 293
 294                 c.gridx = 0;
 295                 c.gridy = 0;
 296                 c.gridwidth = 3;
 297                 c.anchor = GridBagConstraints.CENTER;
 298
 299                 list = new JList(results) {
 300                                 //Subclass JList to workaround bug 4832765, which can cause the
 301                                 //scroll pane to not let the user easily scroll up to the beginning
 302                                 //of the list.  An alternative would be to set the unitIncrement
 303                                 //of the JScrollBar to a fixed value. You wouldn't get the nice
 304                                 //aligned scrolling, but it should work.
 305                                 public int getScrollableUnitIncrement(Rectangle visibleRect,
 306                                                                       int orientation,
 307                                                                       int direction) {
 308                                         int row;
 309                                         if (orientation == SwingConstants.VERTICAL &&
 310                                             direction < 0 && (row = getFirstVisibleIndex()) != -1) {
 311                                                 Rectangle r = getCellBounds(row, row);
 312                                                 if ((r.y == visibleRect.y) && (row != 0))  {
 313                                                         Point loc = r.getLocation();
 314                                                         loc.y--;
 315                                                         int prevIndex = locationToIndex(loc);
 316                                                         Rectangle prevR = getCellBounds(prevIndex, prevIndex);
 317
 318                                                         if (prevR == null || prevR.y >= r.y) {
 319                                                                 return 0;
 320                                                         }
 321                                                         return prevR.height;
 322                                                 }
 323                                         }
 324                                         return super.getScrollableUnitIncrement(
 325                                                 visibleRect, orientation, direction);
 326                                 }
 327                         };
 328
 329                 list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 330                 list.setLayoutOrientation(JList.HORIZONTAL_WRAP);
 331                 list.setVisibleRowCount(-1);
 332
 333 //              list.addMouseListener(new MouseAdapter() {
 334 //                               public void mouseClicked(MouseEvent e) {
 335 //                                       if (e.getClickCount() == 2) {
 336 //                                               select_button.doClick(); //emulate button click
 337 //                                       }
 338 //                               }
 339 //                      });
 340                 JScrollPane listScroller = new JScrollPane(list);
 341                 listScroller.setPreferredSize(new Dimension(400, 80));
 342                 listScroller.setAlignmentX(LEFT_ALIGNMENT);
 343
 344                 //Create a container so that we can add a title around
 345                 //the scroll pane.  Can't add a title directly to the
 346                 //scroll pane because its background would be white.
 347                 //Lay out the label and scroll pane from top to bottom.
 348                 JPanel listPane = new JPanel();
 349                 listPane.setLayout(new BoxLayout(listPane, BoxLayout.PAGE_AXIS));
 350
 351                 JLabel label = new JLabel("Select Device");
 352                 label.setLabelFor(list);
 353                 listPane.add(label);
 354                 listPane.add(Box.createRigidArea(new Dimension(0,5)));
 355                 listPane.add(listScroller);
 356                 listPane.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
 357
 358                 pane.add(listPane, c);
 359
 360                 pack();
 361                 setLocationRelativeTo(owner);
 362
 363                 addWindowListener(new ConfigListener(this));
 364         }
 365 }