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   1 /*
   2  * Copyright © 2014 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; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18 package org.altusmetrum.AltosDroid;
  19
  20 import java.io.*;
  21 import java.util.*;
  22 import java.text.*;
  23
  24 import android.content.Context;
  25 import org.altusmetrum.altoslib_12.*;
  26
  27 public class AltosDroidPreferences extends AltosPreferences {
  28
  29         /* Active device preference name */
  30         final static String activeDeviceAddressPreference = "ACTIVE-DEVICE-ADDRESS";
  31         final static String activeDeviceNamePreference = "ACTIVE-DEVICE-NAME";
  32
  33         static DeviceAddress    active_device_address;
  34
  35         /* Map source preference name */
  36         final static String mapSourcePreference = "MAP-SOURCE";
  37
  38         static final int        MAP_SOURCE_OFFLINE = 0;
  39         static final int        MAP_SOURCE_ONLINE = 1;
  40
  41         static int      map_source;
  42
  43         public static void init(Context context) {
  44                 if (backend != null)
  45                         return;
  46
  47                 AltosPreferences.init(new AltosDroidPreferencesBackend(context));
  48
  49                 String address = backend.getString(activeDeviceAddressPreference, null);
  50                 String name = backend.getString(activeDeviceNamePreference, null);
  51
  52                 if (address != null && name != null)
  53                         active_device_address = new DeviceAddress (address, name);
  54
  55                 map_source = backend.getInt(mapSourcePreference, MAP_SOURCE_ONLINE);
  56         }
  57
  58         public static void set_active_device(DeviceAddress address) {
  59                 synchronized(backend) {
  60                         active_device_address = address;
  61                         if (active_device_address != null) {
  62                                 backend.putString(activeDeviceAddressPreference, active_device_address.address);
  63                                 backend.putString(activeDeviceNamePreference, active_device_address.name);
  64                         } else {
  65                                 backend.remove(activeDeviceAddressPreference);
  66                                 backend.remove(activeDeviceNamePreference);
  67                         }
  68                         flush_preferences();
  69                 }
  70         }
  71
  72         public static DeviceAddress active_device() {
  73                 synchronized(backend) {
  74                         return active_device_address;
  75                 }
  76         }
  77
  78         static LinkedList<AltosDroidMapSourceListener> map_source_listeners;
  79
  80         public static void set_map_source(int map_source) {
  81                 synchronized(backend) {
  82                         AltosDroidPreferences.map_source = map_source;
  83                         backend.putInt(mapSourcePreference, map_source);
  84                         flush_preferences();
  85                 }
  86                 if (map_source_listeners != null) {
  87                         for (AltosDroidMapSourceListener l : map_source_listeners) {
  88                                 l.map_source_changed(map_source);
  89                         }
  90                 }
  91         }
  92
  93         public static int map_source() {
  94                 synchronized(backend) {
  95                         return map_source;
  96                 }
  97         }
  98
  99         public static void register_map_source_listener(AltosDroidMapSourceListener l) {
 100                 synchronized(backend) {
 101                         if (map_source_listeners == null)
 102                                 map_source_listeners = new LinkedList<AltosDroidMapSourceListener>();
 103                         map_source_listeners.add(l);
 104                 }
 105         }
 106
 107         public static void unregister_map_source_listener(AltosDroidMapSourceListener l) {
 108                 synchronized(backend) {
 109                         map_source_listeners.remove(l);
 110                 }
 111         }
 112 }