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   1 /*
   2  * Copyright © 2010 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 org.altusmetrum.AltosLib;
  19
  20 import java.io.*;
  21 import java.util.*;
  22
  23 public class AltosPreferences {
  24         public static AltosPreferencesBackend backend = null;
  25
  26         /* logdir preference name */
  27         public final static String logdirPreference = "LOGDIR";
  28
  29         /* channel preference name */
  30         public final static String channelPreferenceFormat = "CHANNEL-%d";
  31
  32         /* frequency preference name */
  33         public final static String frequencyPreferenceFormat = "FREQUENCY-%d";
  34
  35         /* telemetry format preference name */
  36         public final static String telemetryPreferenceFormat = "TELEMETRY-%d";
  37
  38         /* voice preference name */
  39         public final static String voicePreference = "VOICE";
  40
  41         /* callsign preference name */
  42         public final static String callsignPreference = "CALLSIGN";
  43
  44         /* firmware directory preference name */
  45         public final static String firmwaredirPreference = "FIRMWARE";
  46
  47         /* serial debug preference name */
  48         public final static String serialDebugPreference = "SERIAL-DEBUG";
  49
  50         /* scanning telemetry preferences name */
  51         public final static String scanningTelemetryPreference = "SCANNING-TELEMETRY";
  52
  53         /* Launcher serial preference name */
  54         public final static String launcherSerialPreference = "LAUNCHER-SERIAL";
  55
  56         /* Launcher channel preference name */
  57         public final static String launcherChannelPreference = "LAUNCHER-CHANNEL";
  58
  59         /* Default logdir is ~/TeleMetrum */
  60         public final static String logdirName = "TeleMetrum";
  61
  62         /* Log directory */
  63         public static File logdir;
  64
  65         /* Map directory -- hangs of logdir */
  66         public static File mapdir;
  67
  68         /* Frequency (map serial to frequency) */
  69         public static Hashtable<Integer, Double> frequencies;
  70
  71         /* Telemetry (map serial to telemetry format) */
  72         public static Hashtable<Integer, Integer> telemetries;
  73
  74         /* Voice preference */
  75         public static boolean voice;
  76
  77         /* Callsign preference */
  78         public static String callsign;
  79
  80         /* Firmware directory */
  81         public static File firmwaredir;
  82
  83         /* Scanning telemetry */
  84         public static int scanning_telemetry;
  85
  86         /* List of frequencies */
  87         public final static String common_frequencies_node_name = "COMMON-FREQUENCIES";
  88         public static AltosFrequency[] common_frequencies;
  89
  90         public final static String      frequency_count = "COUNT";
  91         public final static String      frequency_format = "FREQUENCY-%d";
  92         public final static String      description_format = "DESCRIPTION-%d";
  93
  94         /* Units preference */
  95
  96         public final static String      unitsPreference = "IMPERIAL-UNITS";
  97
  98         public static AltosFrequency[] load_common_frequencies() {
  99                 AltosFrequency[] frequencies = null;
 100                 boolean existing = false;
 101                 existing = backend.nodeExists(common_frequencies_node_name);
 102
 103                 if (existing) {
 104                         AltosPreferencesBackend node = backend.node(common_frequencies_node_name);
 105                         int             count = node.getInt(frequency_count, 0);
 106
 107                         frequencies = new AltosFrequency[count];
 108                         for (int i = 0; i < count; i++) {
 109                                 double  frequency;
 110                                 String  description;
 111
 112                                 frequency = node.getDouble(String.format(frequency_format, i), 0.0);
 113                                 description = node.getString(String.format(description_format, i), null);
 114                                 frequencies[i] = new AltosFrequency(frequency, description);
 115                         }
 116                 } else {
 117                         frequencies = new AltosFrequency[10];
 118                         for (int i = 0; i < 10; i++) {
 119                                 frequencies[i] = new AltosFrequency(434.550 + i * .1,
 120                                                                            String.format("Channel %d", i));
 121                         }
 122                 }
 123                 return frequencies;
 124         }
 125
 126         public static void save_common_frequencies(AltosFrequency[] frequencies) {
 127                 AltosPreferencesBackend node = backend.node(common_frequencies_node_name);
 128
 129                 node.putInt(frequency_count, frequencies.length);
 130                 for (int i = 0; i < frequencies.length; i++) {
 131                         node.putDouble(String.format(frequency_format, i), frequencies[i].frequency);
 132                         node.putString(String.format(description_format, i), frequencies[i].description);
 133                 }
 134         }
 135         public static int launcher_serial;
 136
 137         public static int launcher_channel;
 138
 139         public static void init(AltosPreferencesBackend in_backend) {
 140                 backend = in_backend;
 141
 142                 /* Initialize logdir from preferences */
 143                 String logdir_string = backend.getString(logdirPreference, null);
 144                 if (logdir_string != null)
 145                         logdir = new File(logdir_string);
 146                 else {
 147                         logdir = new File(backend.homeDirectory(), logdirName);
 148                         if (!logdir.exists())
 149                                 logdir.mkdirs();
 150                 }
 151                 mapdir = new File(logdir, "maps");
 152                 if (!mapdir.exists())
 153                         mapdir.mkdirs();
 154
 155                 frequencies = new Hashtable<Integer, Double>();
 156
 157                 telemetries = new Hashtable<Integer,Integer>();
 158
 159                 voice = backend.getBoolean(voicePreference, true);
 160
 161                 callsign = backend.getString(callsignPreference,"N0CALL");
 162
 163                 scanning_telemetry = backend.getInt(scanningTelemetryPreference,(1 << AltosLib.ao_telemetry_standard));
 164
 165                 launcher_serial = backend.getInt(launcherSerialPreference, 0);
 166
 167                 launcher_channel = backend.getInt(launcherChannelPreference, 0);
 168
 169                 String firmwaredir_string = backend.getString(firmwaredirPreference, null);
 170                 if (firmwaredir_string != null)
 171                         firmwaredir = new File(firmwaredir_string);
 172                 else
 173                         firmwaredir = null;
 174
 175                 common_frequencies = load_common_frequencies();
 176
 177                 AltosConvert.imperial_units = backend.getBoolean(unitsPreference, false);
 178         }
 179
 180         public static void flush_preferences() {
 181                 backend.flush();
 182         }
 183
 184         public static void set_logdir(File new_logdir) {
 185                 synchronized (backend) {
 186                         logdir = new_logdir;
 187                         mapdir = new File(logdir, "maps");
 188                         if (!mapdir.exists())
 189                                 mapdir.mkdirs();
 190                         backend.putString(logdirPreference, logdir.getPath());
 191                         flush_preferences();
 192                 }
 193         }
 194
 195         public static File logdir() {
 196                 synchronized (backend) {
 197                         return logdir;
 198                 }
 199         }
 200
 201         public static File mapdir() {
 202                 synchronized (backend) {
 203                         return mapdir;
 204                 }
 205         }
 206
 207         public static void set_frequency(int serial, double new_frequency) {
 208                 synchronized (backend) {
 209                         frequencies.put(serial, new_frequency);
 210                         backend.putDouble(String.format(frequencyPreferenceFormat, serial), new_frequency);
 211                         flush_preferences();
 212                 }
 213         }
 214
 215         public static double frequency(int serial) {
 216                 synchronized (backend) {
 217                         if (frequencies.containsKey(serial))
 218                                 return frequencies.get(serial);
 219                         double frequency = backend.getDouble(String.format(frequencyPreferenceFormat, serial), 0);
 220                         if (frequency == 0.0) {
 221                                 int channel = backend.getInt(String.format(channelPreferenceFormat, serial), 0);
 222                                 frequency = AltosConvert.radio_channel_to_frequency(channel);
 223                         }
 224                         frequencies.put(serial, frequency);
 225                         return frequency;
 226                 }
 227         }
 228
 229         public static void set_telemetry(int serial, int new_telemetry) {
 230                 synchronized (backend) {
 231                         telemetries.put(serial, new_telemetry);
 232                         backend.putInt(String.format(telemetryPreferenceFormat, serial), new_telemetry);
 233                         flush_preferences();
 234                 }
 235         }
 236
 237         public static int telemetry(int serial) {
 238                 synchronized (backend) {
 239                         if (telemetries.containsKey(serial))
 240                                 return telemetries.get(serial);
 241                         int telemetry = backend.getInt(String.format(telemetryPreferenceFormat, serial),
 242                                                    AltosLib.ao_telemetry_standard);
 243                         telemetries.put(serial, telemetry);
 244                         return telemetry;
 245                 }
 246         }
 247
 248         public static void set_scanning_telemetry(int new_scanning_telemetry) {
 249                 synchronized (backend) {
 250                         scanning_telemetry = new_scanning_telemetry;
 251                         backend.putInt(scanningTelemetryPreference, scanning_telemetry);
 252                         flush_preferences();
 253                 }
 254         }
 255
 256         public static int scanning_telemetry() {
 257                 synchronized (backend) {
 258                         return scanning_telemetry;
 259                 }
 260         }
 261
 262         public static void set_voice(boolean new_voice) {
 263                 synchronized (backend) {
 264                         voice = new_voice;
 265                         backend.putBoolean(voicePreference, voice);
 266                         flush_preferences();
 267                 }
 268         }
 269
 270         public static boolean voice() {
 271                 synchronized (backend) {
 272                         return voice;
 273                 }
 274         }
 275
 276         public static void set_callsign(String new_callsign) {
 277                 synchronized(backend) {
 278                         callsign = new_callsign;
 279                         backend.putString(callsignPreference, callsign);
 280                         flush_preferences();
 281                 }
 282         }
 283
 284         public static String callsign() {
 285                 synchronized(backend) {
 286                         return callsign;
 287                 }
 288         }
 289
 290         public static void set_firmwaredir(File new_firmwaredir) {
 291                 synchronized (backend) {
 292                         firmwaredir = new_firmwaredir;
 293                         backend.putString(firmwaredirPreference, firmwaredir.getPath());
 294                         flush_preferences();
 295                 }
 296         }
 297
 298         public static File firmwaredir() {
 299                 synchronized (backend) {
 300                         return firmwaredir;
 301                 }
 302         }
 303
 304         public static void set_launcher_serial(int new_launcher_serial) {
 305                 synchronized (backend) {
 306                         launcher_serial = new_launcher_serial;
 307                         backend.putInt(launcherSerialPreference, launcher_serial);
 308                         flush_preferences();
 309                 }
 310         }
 311
 312         public static int launcher_serial() {
 313                 synchronized (backend) {
 314                         return launcher_serial;
 315                 }
 316         }
 317
 318         public static void set_launcher_channel(int new_launcher_channel) {
 319                 synchronized (backend) {
 320                         launcher_channel = new_launcher_channel;
 321                         backend.putInt(launcherChannelPreference, launcher_channel);
 322                         flush_preferences();
 323                 }
 324         }
 325
 326         public static int launcher_channel() {
 327                 synchronized (backend) {
 328                         return launcher_channel;
 329                 }
 330         }
 331
 332         public static AltosPreferencesBackend bt_devices() {
 333                 synchronized (backend) {
 334                         return backend.node("bt_devices");
 335                 }
 336         }
 337
 338         public static AltosFrequency[] common_frequencies() {
 339                 synchronized (backend) {
 340                         return common_frequencies;
 341                 }
 342         }
 343
 344         public static void set_common_frequencies(AltosFrequency[] frequencies) {
 345                 synchronized(backend) {
 346                         common_frequencies = frequencies;
 347                         save_common_frequencies(frequencies);
 348                         flush_preferences();
 349                 }
 350         }
 351
 352         public static void add_common_frequency(AltosFrequency frequency) {
 353                 AltosFrequency[]        old_frequencies = common_frequencies();
 354                 AltosFrequency[]        new_frequencies = new AltosFrequency[old_frequencies.length + 1];
 355                 int                     i;
 356
 357                 for (i = 0; i < old_frequencies.length; i++) {
 358                         if (frequency.frequency == old_frequencies[i].frequency)
 359                                 return;
 360                         if (frequency.frequency < old_frequencies[i].frequency)
 361                                 break;
 362                         new_frequencies[i] = old_frequencies[i];
 363                 }
 364                 new_frequencies[i] = frequency;
 365                 for (; i < old_frequencies.length; i++)
 366                         new_frequencies[i+1] = old_frequencies[i];
 367                 set_common_frequencies(new_frequencies);
 368         }
 369
 370         static LinkedList<AltosUnitsListener> units_listeners;
 371
 372         public static boolean imperial_units() {
 373                 synchronized(backend) {
 374                         return AltosConvert.imperial_units;
 375                 }
 376         }
 377
 378         public static void set_imperial_units(boolean imperial_units) {
 379                 synchronized (backend) {
 380                         AltosConvert.imperial_units = imperial_units;
 381                         backend.putBoolean(unitsPreference, imperial_units);
 382                         flush_preferences();
 383                 }
 384                 if (units_listeners != null) {
 385                         for (AltosUnitsListener l : units_listeners) {
 386                                 l.units_changed(imperial_units);
 387                         }
 388                 }
 389         }
 390
 391         public static void register_units_listener(AltosUnitsListener l) {
 392                 synchronized(backend) {
 393                         if (units_listeners == null)
 394                                 units_listeners = new LinkedList<AltosUnitsListener>();
 395                         units_listeners.add(l);
 396                 }
 397         }
 398
 399         public static void unregister_units_listener(AltosUnitsListener l) {
 400                 synchronized(backend) {
 401                         units_listeners.remove(l);
 402                 }
 403         }
 404 }