diff options
Diffstat (limited to 'altoslib/AltosPreferences.java')
| -rw-r--r-- | altoslib/AltosPreferences.java | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/altoslib/AltosPreferences.java b/altoslib/AltosPreferences.java index 47196d6e..e50b9b5c 100644 --- a/altoslib/AltosPreferences.java +++ b/altoslib/AltosPreferences.java @@ -367,6 +367,8 @@ public class AltosPreferences { set_common_frequencies(new_frequencies); } + static LinkedList<AltosUnitsListener> units_listeners; + public static boolean imperial_units() { synchronized(backend) { return AltosConvert.imperial_units; @@ -379,5 +381,24 @@ public class AltosPreferences { 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); + } } } |