diff options
| -rw-r--r-- | altoslib/AltosPreferences.java | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/altoslib/AltosPreferences.java b/altoslib/AltosPreferences.java index 2fad96fd..cdff93f6 100644 --- a/altoslib/AltosPreferences.java +++ b/altoslib/AltosPreferences.java @@ -19,6 +19,7 @@ package org.altusmetrum.altoslib_7; import java.io.*; import java.util.*; +import java.text.*; public class AltosPreferences { public static AltosPreferencesBackend backend = null; @@ -42,7 +43,9 @@ public class AltosPreferences { public final static String logfilePreferenceFormat = "LOGFILE-%d"; /* state preference name */ + public final static String statePreferenceHead = "STATE-"; public final static String statePreferenceFormat = "STATE-%d"; + public final static String statePreferenceLatest = "STATE-LATEST"; /* voice preference name */ public final static String voicePreference = "VOICE"; @@ -360,12 +363,43 @@ public class AltosPreferences { synchronized(backend) { backend.putBytes(String.format(statePreferenceFormat, serial), bytes); + backend.putInt(statePreferenceLatest, serial); flush_preferences(); } } catch (IOException ie) { } } + public static ArrayList<Integer> list_states() { + String[] keys = backend.keys(); + ArrayList<Integer> states = new ArrayList<Integer>(); + + for (String key : keys) { + if (key.startsWith(statePreferenceHead)) { + try { + int serial = AltosParse.parse_int(key.substring(statePreferenceHead.length())); + states.add(serial); + } catch (ParseException pe) { + } + } + } + return states; + } + + public static void remove_state(int serial) { + synchronized(backend) { + backend.remove(String.format(statePreferenceFormat, serial)); + } + } + + public static int latest_state() { + int latest = 0; + synchronized (backend) { + latest = backend.getInt(statePreferenceLatest, 0); + } + return latest; + } + public static AltosSavedState state(int serial) { byte[] bytes = null; |