git.gag.com Git - fw/altos/blob - altosui/AltosBTManage.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.plaf.basic.*;
  24 import java.util.*;
  25 import java.util.concurrent.*;
  26
  27 public class AltosBTManage extends AltosDialog implements ActionListener, Iterable<AltosBTDevice> {
  28         LinkedBlockingQueue<AltosBTDevice> found_devices;
  29         Frame frame;
  30         LinkedList<ActionListener> listeners;
  31         AltosBTKnown    bt_known;
  32
  33         class DeviceList extends JList implements Iterable<AltosBTDevice> {
  34                 LinkedList<AltosBTDevice> devices;
  35                 DefaultListModel        list_model;
  36
  37                 public void add (AltosBTDevice device) {
  38                         if (!devices.contains(device)) {
  39                                 devices.add(device);
  40                                 list_model.addElement(device);
  41                         }
  42                 }
  43
  44                 public void remove (AltosBTDevice device) {
  45                         if (devices.contains(device)) {
  46                                 devices.remove(device);
  47                                 list_model.removeElement(device);
  48                         }
  49                 }
  50
  51                 public boolean contains(AltosBTDevice device) {
  52                         return devices.contains(device);
  53                 }
  54
  55                 //Subclass JList to workaround bug 4832765, which can cause the
  56                 //scroll pane to not let the user easily scroll up to the beginning
  57                 //of the list.  An alternative would be to set the unitIncrement
  58                 //of the JScrollBar to a fixed value. You wouldn't get the nice
  59                 //aligned scrolling, but it should work.
  60                 public int getScrollableUnitIncrement(Rectangle visibleRect,
  61                                                       int orientation,
  62                                                       int direction) {
  63                         int row;
  64                         if (orientation == SwingConstants.VERTICAL &&
  65                             direction < 0 && (row = getFirstVisibleIndex()) != -1) {
  66                                 Rectangle r = getCellBounds(row, row);
  67                                 if ((r.y == visibleRect.y) && (row != 0))  {
  68                                         Point loc = r.getLocation();
  69                                         loc.y--;
  70                                         int prevIndex = locationToIndex(loc);
  71                                         Rectangle prevR = getCellBounds(prevIndex, prevIndex);
  72
  73                                         if (prevR == null || prevR.y >= r.y) {
  74                                                 return 0;
  75                                         }
  76                                         return prevR.height;
  77                                 }
  78                         }
  79                         return super.getScrollableUnitIncrement(
  80                                 visibleRect, orientation, direction);
  81                 }
  82
  83                 public Iterator<AltosBTDevice> iterator() {
  84                         return devices.iterator();
  85                 }
  86
  87                 public java.util.List<AltosBTDevice> selected_list() {
  88                         java.util.LinkedList<AltosBTDevice> l = new java.util.LinkedList<AltosBTDevice>();
  89                         Object[] a = getSelectedValues();
  90                         for (int i = 0; i < a.length; i++)
  91                                 l.add((AltosBTDevice)a[i]);
  92                         return l;
  93                 }
  94
  95                 public DeviceList() {
  96                         devices = new LinkedList<AltosBTDevice>();
  97                         list_model = new DefaultListModel();
  98                         setModel(list_model);
  99                         setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
 100                         setLayoutOrientation(JList.HORIZONTAL_WRAP);
 101                         setVisibleRowCount(-1);
 102                 }
 103         }
 104
 105         DeviceList      visible_devices;
 106
 107         DeviceList      known_devices;
 108         Thread          bt_thread;
 109
 110         public Iterator<AltosBTDevice> iterator() {
 111                 return known_devices.iterator();
 112         }
 113
 114         public void commit() {
 115                 bt_known.set(this);
 116         }
 117
 118         public void add_known() {
 119                 for (AltosBTDevice device : visible_devices.selected_list()) {
 120                         known_devices.add(device);
 121                         visible_devices.remove(device);
 122                 }
 123         }
 124
 125         public void remove_known() {
 126                 for (AltosBTDevice device : known_devices.selected_list()) {
 127                         known_devices.remove(device);
 128                         visible_devices.add(device);
 129                 }
 130         }
 131
 132         public void addActionListener(ActionListener l) {
 133                 listeners.add(l);
 134         }
 135
 136         private void forwardAction(ActionEvent e) {
 137                 for (ActionListener l : listeners)
 138                         l.actionPerformed(e);
 139         }
 140
 141         public void actionPerformed(ActionEvent e) {
 142                 String  command = e.getActionCommand();
 143                 if ("ok".equals(command)) {
 144                         bt_thread.interrupt();
 145                         commit();
 146                         setVisible(false);
 147                         forwardAction(e);
 148                 } else if ("cancel".equals(command)) {
 149                         bt_thread.interrupt();
 150                         setVisible(false);
 151                         forwardAction(e);
 152                 } else if ("select".equals(command)) {
 153                         add_known();
 154                 } else if ("deselect".equals(command)) {
 155                         remove_known();
 156                 }
 157         }
 158
 159         public void got_visible_device() {
 160                 while (!found_devices.isEmpty()) {
 161                         AltosBTDevice   device = found_devices.remove();
 162                         if (!known_devices.contains(device))
 163                                 visible_devices.add(device);
 164                 }
 165         }
 166
 167         class BTGetVisibleDevices implements Runnable {
 168                 public void run () {
 169                         for (;;)
 170                                 for (int time = 1; time <= 8; time <<= 1) {
 171                                         AltosBTDeviceIterator   i = new AltosBTDeviceIterator(time);
 172                                         AltosBTDevice           device;
 173
 174                                         if (Thread.interrupted())
 175                                                 return;
 176                                         try {
 177                                                 while ((device = i.next()) != null) {
 178                                                         Runnable r;
 179
 180                                                         if (Thread.interrupted())
 181                                                                 return;
 182                                                         found_devices.add(device);
 183                                                         r = new Runnable() {
 184                                                                         public void run() {
 185                                                                                 got_visible_device();
 186                                                                         }
 187                                                                 };
 188                                                         SwingUtilities.invokeLater(r);
 189                                                 }
 190                                         } catch (Exception e) {
 191                                                 System.out.printf("uh-oh, exception %s\n", e.toString());
 192                                         }
 193                                 }
 194                 }
 195         }
 196
 197         public static void show(Component frameComp, AltosBTKnown known) {
 198                 Frame   frame = JOptionPane.getFrameForComponent(frameComp);
 199                 AltosBTManage   dialog;
 200
 201                 dialog = new AltosBTManage(frame, known);
 202                 dialog.setVisible(true);
 203         }
 204
 205         public AltosBTManage(Frame in_frame, AltosBTKnown in_known) {
 206                 super(in_frame, "Manage Bluetooth Devices", true);
 207
 208                 frame = in_frame;
 209                 bt_known = in_known;
 210                 BTGetVisibleDevices     get_visible_devices = new BTGetVisibleDevices();
 211                 bt_thread = new Thread(get_visible_devices);
 212                 bt_thread.start();
 213
 214                 listeners = new LinkedList<ActionListener>();
 215
 216                 found_devices = new LinkedBlockingQueue<AltosBTDevice>();
 217
 218                 Container pane = getContentPane();
 219                 pane.setLayout(new GridBagLayout());
 220
 221                 GridBagConstraints c = new GridBagConstraints();
 222                 c.insets = new Insets(4,4,4,4);
 223
 224                 /*
 225                  * Known devices label and list
 226                  */
 227                 c.fill = GridBagConstraints.NONE;
 228                 c.anchor = GridBagConstraints.WEST;
 229                 c.gridx = 0;
 230                 c.gridy = 0;
 231                 c.gridwidth = 1;
 232                 c.gridheight = 1;
 233                 c.weightx = 0;
 234                 c.weighty = 0;
 235                 pane.add(new JLabel("Known Devices"), c);
 236
 237                 known_devices = new DeviceList();
 238                 for (AltosBTDevice device : bt_known)
 239                         known_devices.add(device);
 240
 241                 JScrollPane known_list_scroller = new JScrollPane(known_devices);
 242                 known_list_scroller.setPreferredSize(new Dimension(400, 80));
 243                 known_list_scroller.setAlignmentX(LEFT_ALIGNMENT);
 244                 c.fill = GridBagConstraints.BOTH;
 245                 c.anchor = GridBagConstraints.WEST;
 246                 c.gridx = 0;
 247                 c.gridy = 1;
 248                 c.gridwidth = 1;
 249                 c.gridheight = 2;
 250                 c.weightx = 1;
 251                 c.weighty = 1;
 252                 pane.add(known_list_scroller, c);
 253
 254                 /*
 255                  * Visible devices label and list
 256                  */
 257                 c.fill = GridBagConstraints.NONE;
 258                 c.anchor = GridBagConstraints.WEST;
 259                 c.gridx = 2;
 260                 c.gridy = 0;
 261                 c.gridwidth = 1;
 262                 c.gridheight = 1;
 263                 c.weightx = 0;
 264                 c.weighty = 0;
 265
 266                 pane.add(new JLabel("Visible Devices"), c);
 267
 268                 visible_devices = new DeviceList();
 269                 JScrollPane visible_list_scroller = new JScrollPane(visible_devices);
 270                 visible_list_scroller.setPreferredSize(new Dimension(400, 80));
 271                 visible_list_scroller.setAlignmentX(LEFT_ALIGNMENT);
 272                 c.fill = GridBagConstraints.BOTH;
 273                 c.anchor = GridBagConstraints.WEST;
 274                 c.gridx = 2;
 275                 c.gridy = 1;
 276                 c.gridheight = 2;
 277                 c.gridwidth = 1;
 278                 c.weightx = 1;
 279                 c.weighty = 1;
 280                 pane.add(visible_list_scroller, c);
 281
 282                 /*
 283                  * Arrows between the two lists
 284                  */
 285                 BasicArrowButton select_arrow = new BasicArrowButton(SwingConstants.WEST);
 286                 select_arrow.setActionCommand("select");
 287                 select_arrow.addActionListener(this);
 288                 c.fill = GridBagConstraints.NONE;
 289                 c.anchor = GridBagConstraints.SOUTH;
 290                 c.gridx = 1;
 291                 c.gridy = 1;
 292                 c.gridheight = 1;
 293                 c.gridwidth = 1;
 294                 c.weightx = 0;
 295                 c.weighty = 0;
 296                 pane.add(select_arrow, c);
 297
 298                 BasicArrowButton deselect_arrow = new BasicArrowButton(SwingConstants.EAST);
 299                 deselect_arrow.setActionCommand("deselect");
 300                 deselect_arrow.addActionListener(this);
 301                 c.fill = GridBagConstraints.NONE;
 302                 c.anchor = GridBagConstraints.NORTH;
 303                 c.gridx = 1;
 304                 c.gridy = 2;
 305                 c.gridheight = 1;
 306                 c.gridwidth = 1;
 307                 c.weightx = 0;
 308                 c.weighty = 0;
 309                 pane.add(deselect_arrow, c);
 310
 311                 JButton cancel_button = new JButton("Cancel");
 312                 cancel_button.setActionCommand("cancel");
 313                 cancel_button.addActionListener(this);
 314                 c.fill = GridBagConstraints.NONE;
 315                 c.anchor = GridBagConstraints.CENTER;
 316                 c.gridx = 0;
 317                 c.gridy = 3;
 318                 c.gridheight = 1;
 319                 c.gridwidth = 1;
 320                 c.weightx = 0;
 321                 c.weighty = 0;
 322                 pane.add(cancel_button, c);
 323
 324                 JButton ok_button = new JButton("OK");
 325                 ok_button.setActionCommand("ok");
 326                 ok_button.addActionListener(this);
 327                 c.fill = GridBagConstraints.NONE;
 328                 c.anchor = GridBagConstraints.CENTER;
 329                 c.gridx = 2;
 330                 c.gridy = 3;
 331                 c.gridheight = 1;
 332                 c.gridwidth = 1;
 333                 c.weightx = 0;
 334                 c.weighty = 0;
 335                 pane.add(ok_button, c);
 336
 337                 getRootPane().setDefaultButton(ok_button);
 338
 339                 pack();
 340                 setLocationRelativeTo(frame);
 341                 setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
 342                 addWindowListener(new WindowAdapter() {
 343                         @Override
 344                         public void windowClosing(WindowEvent e) {
 345                                 bt_thread.interrupt();
 346                                 setVisible(false);
 347                         }
 348                 });
 349         }
 350 }