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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_5;
  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         /* Last log directory - use this next time we open or save something */
  66         public static File last_logdir;
  67
  68         /* Map directory -- hangs of logdir */
  69         public static File mapdir;
  70
  71         /* Frequency (map serial to frequency) */
  72         public static Hashtable<Integer, Double> frequencies;
  73
  74         /* Telemetry (map serial to telemetry format) */
  75         public static Hashtable<Integer, Integer> telemetries;
  76
  77         /* Voice preference */
  78         public static boolean voice;
  79
  80         /* Callsign preference */
  81         public static String callsign;
  82
  83         /* Firmware directory */
  84         public static File firmwaredir;
  85
  86         /* Scanning telemetry */
  87         public static int scanning_telemetry;
  88
  89         /* List of frequencies */
  90         public final static String common_frequencies_node_name = "COMMON-FREQUENCIES";
  91         public static AltosFrequency[] common_frequencies;
  92
  93         public final static String      frequency_count = "COUNT";
  94         public final static String      frequency_format = "FREQUENCY-%d";
  95         public final static String      description_format = "DESCRIPTION-%d";
  96
  97         /* Units preference */
  98
  99         public final static String      unitsPreference = "IMPERIAL-UNITS";
 100
 101         public static AltosFrequency[] load_common_frequencies() {
 102                 AltosFrequency[] frequencies = null;
 103                 boolean existing = false;
 104                 existing = backend.nodeExists(common_frequencies_node_name);
 105
 106                 if (existing) {
 107                         AltosPreferencesBackend node = backend.node(common_frequencies_node_name);
 108                         int             count = node.getInt(frequency_count, 0);
 109
 110                         frequencies = new AltosFrequency[count];
 111                         for (int i = 0; i < count; i++) {
 112                                 double  frequency;
 113                                 String  description;
 114
 115                                 frequency = node.getDouble(String.format(frequency_format, i), 0.0);
 116                                 description = node.getString(String.format(description_format, i), null);
 117                                 frequencies[i] = new AltosFrequency(frequency, description);
 118                         }
 119                 } else {
 120                         frequencies = new AltosFrequency[10];
 121                         for (int i = 0; i < 10; i++) {
 122                                 frequencies[i] = new AltosFrequency(434.550 + i * .1,
 123                                                                            String.format("Channel %d", i));
 124                         }
 125                 }
 126                 return frequencies;
 127         }
 128
 129         public static void save_common_frequencies(AltosFrequency[] frequencies) {
 130                 AltosPreferencesBackend node = backend.node(common_frequencies_node_name);
 131
 132                 node.putInt(frequency_count, frequencies.length);
 133                 for (int i = 0; i < frequencies.length; i++) {
 134                         node.putDouble(String.format(frequency_format, i), frequencies[i].frequency);
 135                         node.putString(String.format(description_format, i), frequencies[i].description);
 136                 }
 137         }
 138         public static int launcher_serial;
 139
 140         public static int launcher_channel;
 141
 142         public static void init(AltosPreferencesBackend in_backend) {
 143                 backend = in_backend;
 144
 145                 /* Initialize logdir from preferences */
 146                 String logdir_string = backend.getString(logdirPreference, null);
 147                 if (logdir_string != null)
 148                         logdir = new File(logdir_string);
 149                 else {
 150                         logdir = new File(backend.homeDirectory(), logdirName);
 151                         if (!logdir.exists())
 152                                 logdir.mkdirs();
 153                 }
 154                 mapdir = new File(logdir, "maps");
 155                 if (!mapdir.exists())
 156                         mapdir.mkdirs();
 157
 158                 frequencies = new Hashtable<Integer, Double>();
 159
 160                 telemetries = new Hashtable<Integer,Integer>();
 161
 162                 voice = backend.getBoolean(voicePreference, true);
 163
 164                 callsign = backend.getString(callsignPreference,"N0CALL");
 165
 166                 scanning_telemetry = backend.getInt(scanningTelemetryPreference,(1 << AltosLib.ao_telemetry_standard));
 167
 168                 launcher_serial = backend.getInt(launcherSerialPreference, 0);
 169
 170                 launcher_channel = backend.getInt(launcherChannelPreference, 0);
 171
 172                 String firmwaredir_string = backend.getString(firmwaredirPreference, null);
 173                 if (firmwaredir_string != null)
 174                         firmwaredir = new File(firmwaredir_string);
 175                 else
 176                         firmwaredir = null;
 177
 178                 common_frequencies = load_common_frequencies();
 179
 180                 AltosConvert.imperial_units = backend.getBoolean(unitsPreference, false);
 181         }
 182
 183         public static void flush_preferences() {
 184                 backend.flush();
 185         }
 186
 187         public static void set_logdir(File new_logdir) {
 188                 synchronized (backend) {
 189                         logdir = new_logdir;
 190                         mapdir = new File(logdir, "maps");
 191                         if (!mapdir.exists())
 192                                 mapdir.mkdirs();
 193                         backend.putString(logdirPreference, logdir.getPath());
 194                         flush_preferences();
 195                 }
 196         }
 197
 198         public static File logdir() {
 199                 synchronized (backend) {
 200                         return logdir;
 201                 }
 202         }
 203
 204         public static File last_logdir() {
 205                 synchronized (backend) {
 206                         if (last_logdir == null)
 207                                 last_logdir = logdir;
 208                         return last_logdir;
 209                 }
 210         }
 211
 212         public static void set_last_logdir(File file) {
 213                 synchronized(backend) {
 214                         if (file != null && !file.isDirectory())
 215                                 file = file.getParentFile();
 216                         if (file == null)
 217                                 file = new File(".");
 218                         last_logdir = file;
 219                 }
 220         }
 221
 222         public static File mapdir() {
 223                 synchronized (backend) {
 224                         return mapdir;
 225                 }
 226         }
 227
 228         public static void set_frequency(int serial, double new_frequency) {
 229                 synchronized (backend) {
 230                         frequencies.put(serial, new_frequency);
 231                         backend.putDouble(String.format(frequencyPreferenceFormat, serial), new_frequency);
 232                         flush_preferences();
 233                 }
 234         }
 235
 236         public static double frequency(int serial) {
 237                 synchronized (backend) {
 238                         if (frequencies.containsKey(serial))
 239                                 return frequencies.get(serial);
 240                         double frequency = backend.getDouble(String.format(frequencyPreferenceFormat, serial), 0);
 241                         if (frequency == 0.0) {
 242                                 int channel = backend.getInt(String.format(channelPreferenceFormat, serial), 0);
 243                                 frequency = AltosConvert.radio_channel_to_frequency(channel);
 244                         }
 245                         frequencies.put(serial, frequency);
 246                         return frequency;
 247                 }
 248         }
 249
 250         public static void set_telemetry(int serial, int new_telemetry) {
 251                 synchronized (backend) {
 252                         telemetries.put(serial, new_telemetry);
 253                         backend.putInt(String.format(telemetryPreferenceFormat, serial), new_telemetry);
 254                         flush_preferences();
 255                 }
 256         }
 257
 258         public static int telemetry(int serial) {
 259                 synchronized (backend) {
 260                         if (telemetries.containsKey(serial))
 261                                 return telemetries.get(serial);
 262                         int telemetry = backend.getInt(String.format(telemetryPreferenceFormat, serial),
 263                                                    AltosLib.ao_telemetry_standard);
 264                         telemetries.put(serial, telemetry);
 265                         return telemetry;
 266                 }
 267         }
 268
 269         public static void set_scanning_telemetry(int new_scanning_telemetry) {
 270                 synchronized (backend) {
 271                         scanning_telemetry = new_scanning_telemetry;
 272                         backend.putInt(scanningTelemetryPreference, scanning_telemetry);
 273                         flush_preferences();
 274                 }
 275         }
 276
 277         public static int scanning_telemetry() {
 278                 synchronized (backend) {
 279                         return scanning_telemetry;
 280                 }
 281         }
 282
 283         public static void set_voice(boolean new_voice) {
 284                 synchronized (backend) {
 285                         voice = new_voice;
 286                         backend.putBoolean(voicePreference, voice);
 287                         flush_preferences();
 288                 }
 289         }
 290
 291         public static boolean voice() {
 292                 synchronized (backend) {
 293                         return voice;
 294                 }
 295         }
 296
 297         public static void set_callsign(String new_callsign) {
 298                 synchronized(backend) {
 299                         callsign = new_callsign;
 300                         backend.putString(callsignPreference, callsign);
 301                         flush_preferences();
 302                 }
 303         }
 304
 305         public static String callsign() {
 306                 synchronized(backend) {
 307                         return callsign;
 308                 }
 309         }
 310
 311         public static void set_firmwaredir(File new_firmwaredir) {
 312                 synchronized (backend) {
 313                         firmwaredir = new_firmwaredir;
 314                         backend.putString(firmwaredirPreference, firmwaredir.getPath());
 315                         flush_preferences();
 316                 }
 317         }
 318
 319         public static File firmwaredir() {
 320                 synchronized (backend) {
 321                         return firmwaredir;
 322                 }
 323         }
 324
 325         public static void set_launcher_serial(int new_launcher_serial) {
 326                 synchronized (backend) {
 327                         launcher_serial = new_launcher_serial;
 328                         backend.putInt(launcherSerialPreference, launcher_serial);
 329                         flush_preferences();
 330                 }
 331         }
 332
 333         public static int launcher_serial() {
 334                 synchronized (backend) {
 335                         return launcher_serial;
 336                 }
 337         }
 338
 339         public static void set_launcher_channel(int new_launcher_channel) {
 340                 synchronized (backend) {
 341                         launcher_channel = new_launcher_channel;
 342                         backend.putInt(launcherChannelPreference, launcher_channel);
 343                         flush_preferences();
 344                 }
 345         }
 346
 347         public static int launcher_channel() {
 348                 synchronized (backend) {
 349                         return launcher_channel;
 350                 }
 351         }
 352
 353         public static AltosPreferencesBackend bt_devices() {
 354                 synchronized (backend) {
 355                         return backend.node("bt_devices");
 356                 }
 357         }
 358
 359         public static AltosFrequency[] common_frequencies() {
 360                 synchronized (backend) {
 361                         return common_frequencies;
 362                 }
 363         }
 364
 365         public static void set_common_frequencies(AltosFrequency[] frequencies) {
 366                 synchronized(backend) {
 367                         common_frequencies = frequencies;
 368                         save_common_frequencies(frequencies);
 369                         flush_preferences();
 370                 }
 371         }
 372
 373         public static void add_common_frequency(AltosFrequency frequency) {
 374                 AltosFrequency[]        old_frequencies = common_frequencies();
 375                 AltosFrequency[]        new_frequencies = new AltosFrequency[old_frequencies.length + 1];
 376                 int                     i;
 377
 378                 for (i = 0; i < old_frequencies.length; i++) {
 379                         if (frequency.frequency == old_frequencies[i].frequency)
 380                                 return;
 381                         if (frequency.frequency < old_frequencies[i].frequency)
 382                                 break;
 383                         new_frequencies[i] = old_frequencies[i];
 384                 }
 385                 new_frequencies[i] = frequency;
 386                 for (; i < old_frequencies.length; i++)
 387                         new_frequencies[i+1] = old_frequencies[i];
 388                 set_common_frequencies(new_frequencies);
 389         }
 390
 391         static LinkedList<AltosUnitsListener> units_listeners;
 392
 393         public static boolean imperial_units() {
 394                 synchronized(backend) {
 395                         return AltosConvert.imperial_units;
 396                 }
 397         }
 398
 399         public static void set_imperial_units(boolean imperial_units) {
 400                 synchronized (backend) {
 401                         AltosConvert.imperial_units = imperial_units;
 402                         backend.putBoolean(unitsPreference, imperial_units);
 403                         flush_preferences();
 404                 }
 405                 if (units_listeners != null) {
 406                         for (AltosUnitsListener l : units_listeners) {
 407                                 l.units_changed(imperial_units);
 408                         }
 409                 }
 410         }
 411
 412         public static void register_units_listener(AltosUnitsListener l) {
 413                 synchronized(backend) {
 414                         if (units_listeners == null)
 415                                 units_listeners = new LinkedList<AltosUnitsListener>();
 416                         units_listeners.add(l);
 417                 }
 418         }
 419
 420         public static void unregister_units_listener(AltosUnitsListener l) {
 421                 synchronized(backend) {
 422                         units_listeners.remove(l);
 423                 }
 424         }
 425 }