java: Bump java library versions for next release
[fw/altos] / altoslib / AltosPreferences.java
index 0e7b2bd3848f3d60e2c48613df337c53f8382742..159951e46f83ffd501f94ee46989acdd275536ef 100644 (file)
  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  */
 
-package org.altusmetrum.AltosLib;
+package org.altusmetrum.altoslib_5;
 
 import java.io.*;
 import java.util.*;
-import java.util.prefs.*;
-import javax.swing.filechooser.FileSystemView;
 
 public class AltosPreferences {
-       public static Preferences preferences;
+       public static AltosPreferencesBackend backend = null;
 
        /* logdir preference name */
        public final static String logdirPreference = "LOGDIR";
@@ -57,13 +55,16 @@ public class AltosPreferences {
 
        /* Launcher channel preference name */
        public final static String launcherChannelPreference = "LAUNCHER-CHANNEL";
-       
+
        /* Default logdir is ~/TeleMetrum */
        public final static String logdirName = "TeleMetrum";
 
        /* Log directory */
        public static File logdir;
 
+       /* Last log directory - use this next time we open or save something */
+       public static File last_logdir;
+
        /* Map directory -- hangs of logdir */
        public static File mapdir;
 
@@ -100,13 +101,10 @@ public class AltosPreferences {
        public static AltosFrequency[] load_common_frequencies() {
                AltosFrequency[] frequencies = null;
                boolean existing = false;
-               try {
-                       existing = preferences.nodeExists(common_frequencies_node_name);
-               } catch (BackingStoreException be) {
-                       existing = false;
-               }
+               existing = backend.nodeExists(common_frequencies_node_name);
+
                if (existing) {
-                       Preferences     node = preferences.node(common_frequencies_node_name);
+                       AltosPreferencesBackend node = backend.node(common_frequencies_node_name);
                        int             count = node.getInt(frequency_count, 0);
 
                        frequencies = new AltosFrequency[count];
@@ -115,7 +113,7 @@ public class AltosPreferences {
                                String  description;
 
                                frequency = node.getDouble(String.format(frequency_format, i), 0.0);
-                               description = node.get(String.format(description_format, i), null);
+                               description = node.getString(String.format(description_format, i), null);
                                frequencies[i] = new AltosFrequency(frequency, description);
                        }
                } else {
@@ -129,28 +127,27 @@ public class AltosPreferences {
        }
 
        public static void save_common_frequencies(AltosFrequency[] frequencies) {
-               Preferences     node = preferences.node(common_frequencies_node_name);
+               AltosPreferencesBackend node = backend.node(common_frequencies_node_name);
 
                node.putInt(frequency_count, frequencies.length);
                for (int i = 0; i < frequencies.length; i++) {
                        node.putDouble(String.format(frequency_format, i), frequencies[i].frequency);
-                       node.put(String.format(description_format, i), frequencies[i].description);
+                       node.putString(String.format(description_format, i), frequencies[i].description);
                }
        }
        public static int launcher_serial;
 
        public static int launcher_channel;
 
-       public static void init() {
-               preferences = Preferences.userRoot().node("/org/altusmetrum/altosui");
+       public static void init(AltosPreferencesBackend in_backend) {
+               backend = in_backend;
 
                /* Initialize logdir from preferences */
-               String logdir_string = preferences.get(logdirPreference, null);
+               String logdir_string = backend.getString(logdirPreference, null);
                if (logdir_string != null)
                        logdir = new File(logdir_string);
                else {
-                       /* Use the file system view default directory */
-                       logdir = new File(FileSystemView.getFileSystemView().getDefaultDirectory(), logdirName);
+                       logdir = new File(backend.homeDirectory(), logdirName);
                        if (!logdir.exists())
                                logdir.mkdirs();
                }
@@ -162,17 +159,17 @@ public class AltosPreferences {
 
                telemetries = new Hashtable<Integer,Integer>();
 
-               voice = preferences.getBoolean(voicePreference, true);
+               voice = backend.getBoolean(voicePreference, true);
 
-               callsign = preferences.get(callsignPreference,"N0CALL");
+               callsign = backend.getString(callsignPreference,"N0CALL");
 
-               scanning_telemetry = preferences.getInt(scanningTelemetryPreference,(1 << AltosLib.ao_telemetry_standard));
+               scanning_telemetry = backend.getInt(scanningTelemetryPreference,(1 << AltosLib.ao_telemetry_standard));
 
-               launcher_serial = preferences.getInt(launcherSerialPreference, 0);
+               launcher_serial = backend.getInt(launcherSerialPreference, 0);
 
-               launcher_channel = preferences.getInt(launcherChannelPreference, 0);
+               launcher_channel = backend.getInt(launcherChannelPreference, 0);
 
-               String firmwaredir_string = preferences.get(firmwaredirPreference, null);
+               String firmwaredir_string = backend.getString(firmwaredirPreference, null);
                if (firmwaredir_string != null)
                        firmwaredir = new File(firmwaredir_string);
                else
@@ -180,65 +177,69 @@ public class AltosPreferences {
 
                common_frequencies = load_common_frequencies();
 
-               AltosConvert.imperial_units = preferences.getBoolean(unitsPreference, false);
+               AltosConvert.imperial_units = backend.getBoolean(unitsPreference, false);
        }
 
-       static { init(); }
-
        public static void flush_preferences() {
-               try {
-                       preferences.flush();
-               } catch (BackingStoreException ee) {
-/*
-                       if (component != null)
-                               JOptionPane.showMessageDialog(component,
-                                                             preferences.absolutePath(),
-                                                             "Cannot save prefernces",
-                                                             JOptionPane.ERROR_MESSAGE);
-                       else
-*/
-                               System.err.printf("Cannot save preferences\n");
-               }
+               backend.flush();
        }
 
        public static void set_logdir(File new_logdir) {
-               synchronized (preferences) {
+               synchronized (backend) {
                        logdir = new_logdir;
                        mapdir = new File(logdir, "maps");
                        if (!mapdir.exists())
                                mapdir.mkdirs();
-                       preferences.put(logdirPreference, logdir.getPath());
+                       backend.putString(logdirPreference, logdir.getPath());
                        flush_preferences();
                }
        }
 
        public static File logdir() {
-               synchronized (preferences) {
+               synchronized (backend) {
                        return logdir;
                }
        }
 
+       public static File last_logdir() {
+               synchronized (backend) {
+                       if (last_logdir == null)
+                               last_logdir = logdir;
+                       return last_logdir;
+               }
+       }
+
+       public static void set_last_logdir(File file) {
+               synchronized(backend) {
+                       if (file != null && !file.isDirectory())
+                               file = file.getParentFile();
+                       if (file == null)
+                               file = new File(".");
+                       last_logdir = file;
+               }
+       }
+
        public static File mapdir() {
-               synchronized (preferences) {
+               synchronized (backend) {
                        return mapdir;
                }
        }
 
        public static void set_frequency(int serial, double new_frequency) {
-               synchronized (preferences) {
+               synchronized (backend) {
                        frequencies.put(serial, new_frequency);
-                       preferences.putDouble(String.format(frequencyPreferenceFormat, serial), new_frequency);
+                       backend.putDouble(String.format(frequencyPreferenceFormat, serial), new_frequency);
                        flush_preferences();
                }
        }
 
        public static double frequency(int serial) {
-               synchronized (preferences) {
+               synchronized (backend) {
                        if (frequencies.containsKey(serial))
                                return frequencies.get(serial);
-                       double frequency = preferences.getDouble(String.format(frequencyPreferenceFormat, serial), 0);
+                       double frequency = backend.getDouble(String.format(frequencyPreferenceFormat, serial), 0);
                        if (frequency == 0.0) {
-                               int channel = preferences.getInt(String.format(channelPreferenceFormat, serial), 0);
+                               int channel = backend.getInt(String.format(channelPreferenceFormat, serial), 0);
                                frequency = AltosConvert.radio_channel_to_frequency(channel);
                        }
                        frequencies.put(serial, frequency);
@@ -247,122 +248,122 @@ public class AltosPreferences {
        }
 
        public static void set_telemetry(int serial, int new_telemetry) {
-               synchronized (preferences) {
+               synchronized (backend) {
                        telemetries.put(serial, new_telemetry);
-                       preferences.putInt(String.format(telemetryPreferenceFormat, serial), new_telemetry);
+                       backend.putInt(String.format(telemetryPreferenceFormat, serial), new_telemetry);
                        flush_preferences();
                }
        }
 
        public static int telemetry(int serial) {
-               synchronized (preferences) {
+               synchronized (backend) {
                        if (telemetries.containsKey(serial))
                                return telemetries.get(serial);
-                       int telemetry = preferences.getInt(String.format(telemetryPreferenceFormat, serial),
-                                                          AltosLib.ao_telemetry_standard);
+                       int telemetry = backend.getInt(String.format(telemetryPreferenceFormat, serial),
+                                                  AltosLib.ao_telemetry_standard);
                        telemetries.put(serial, telemetry);
                        return telemetry;
                }
        }
 
        public static void set_scanning_telemetry(int new_scanning_telemetry) {
-               synchronized (preferences) {
+               synchronized (backend) {
                        scanning_telemetry = new_scanning_telemetry;
-                       preferences.putInt(scanningTelemetryPreference, scanning_telemetry);
+                       backend.putInt(scanningTelemetryPreference, scanning_telemetry);
                        flush_preferences();
                }
        }
 
        public static int scanning_telemetry() {
-               synchronized (preferences) {
+               synchronized (backend) {
                        return scanning_telemetry;
                }
        }
 
        public static void set_voice(boolean new_voice) {
-               synchronized (preferences) {
+               synchronized (backend) {
                        voice = new_voice;
-                       preferences.putBoolean(voicePreference, voice);
+                       backend.putBoolean(voicePreference, voice);
                        flush_preferences();
                }
        }
 
        public static boolean voice() {
-               synchronized (preferences) {
+               synchronized (backend) {
                        return voice;
                }
        }
 
        public static void set_callsign(String new_callsign) {
-               synchronized(preferences) {
+               synchronized(backend) {
                        callsign = new_callsign;
-                       preferences.put(callsignPreference, callsign);
+                       backend.putString(callsignPreference, callsign);
                        flush_preferences();
                }
        }
 
        public static String callsign() {
-               synchronized(preferences) {
+               synchronized(backend) {
                        return callsign;
                }
        }
 
        public static void set_firmwaredir(File new_firmwaredir) {
-               synchronized (preferences) {
+               synchronized (backend) {
                        firmwaredir = new_firmwaredir;
-                       preferences.put(firmwaredirPreference, firmwaredir.getPath());
+                       backend.putString(firmwaredirPreference, firmwaredir.getPath());
                        flush_preferences();
                }
        }
 
        public static File firmwaredir() {
-               synchronized (preferences) {
+               synchronized (backend) {
                        return firmwaredir;
                }
        }
 
        public static void set_launcher_serial(int new_launcher_serial) {
-               synchronized (preferences) {
+               synchronized (backend) {
                        launcher_serial = new_launcher_serial;
-                       preferences.putInt(launcherSerialPreference, launcher_serial);
+                       backend.putInt(launcherSerialPreference, launcher_serial);
                        flush_preferences();
                }
        }
 
        public static int launcher_serial() {
-               synchronized (preferences) {
+               synchronized (backend) {
                        return launcher_serial;
                }
        }
 
        public static void set_launcher_channel(int new_launcher_channel) {
-               synchronized (preferences) {
+               synchronized (backend) {
                        launcher_channel = new_launcher_channel;
-                       preferences.putInt(launcherChannelPreference, launcher_channel);
+                       backend.putInt(launcherChannelPreference, launcher_channel);
                        flush_preferences();
                }
        }
 
        public static int launcher_channel() {
-               synchronized (preferences) {
+               synchronized (backend) {
                        return launcher_channel;
                }
        }
-       
-       public static Preferences bt_devices() {
-               synchronized (preferences) {
-                       return preferences.node("bt_devices");
+
+       public static AltosPreferencesBackend bt_devices() {
+               synchronized (backend) {
+                       return backend.node("bt_devices");
                }
        }
 
        public static AltosFrequency[] common_frequencies() {
-               synchronized (preferences) {
+               synchronized (backend) {
                        return common_frequencies;
                }
        }
 
        public static void set_common_frequencies(AltosFrequency[] frequencies) {
-               synchronized(preferences) {
+               synchronized(backend) {
                        common_frequencies = frequencies;
                        save_common_frequencies(frequencies);
                        flush_preferences();
@@ -387,17 +388,38 @@ public class AltosPreferences {
                set_common_frequencies(new_frequencies);
        }
 
+       static LinkedList<AltosUnitsListener> units_listeners;
+
        public static boolean imperial_units() {
-               synchronized(preferences) {
+               synchronized(backend) {
                        return AltosConvert.imperial_units;
                }
        }
 
        public static void set_imperial_units(boolean imperial_units) {
-               synchronized (preferences) {
+               synchronized (backend) {
                        AltosConvert.imperial_units = imperial_units;
-                       preferences.putBoolean(unitsPreference, imperial_units);
+                       backend.putBoolean(unitsPreference, imperial_units);
                        flush_preferences();
                }
+               if (units_listeners != null) {
+                       for (AltosUnitsListener l : units_listeners) {
+                               l.units_changed(imperial_units);
+                       }
+               }
+       }
+
+       public static void register_units_listener(AltosUnitsListener l) {
+               synchronized(backend) {
+                       if (units_listeners == null)
+                               units_listeners = new LinkedList<AltosUnitsListener>();
+                       units_listeners.add(l);
+               }
+       }
+
+       public static void unregister_units_listener(AltosUnitsListener l) {
+               synchronized(backend) {
+                       units_listeners.remove(l);
+               }
        }
 }