src/be/nikiroo/jvcard/i18n/Trans.java

   1 package be.nikiroo.jvcard.i18n;
   2
   3 import java.util.HashMap;
   4 import java.util.Map;
   5
   6 /**
   7  * This class manages the translation of {@link Trans#StringId}s into
   8  * user-understandable text.
   9  *
  10  * @author niki
  11  *
  12  */
  13 public class Trans {
  14         static private Object lock = new Object();
  15         static private Trans instance = null;
  16
  17         private Map<StringId, String> map = null;
  18
  19         /**
  20          * An enum representing information to be translated to the user.
  21          *
  22          * @author niki
  23          *
  24          */
  25         public enum StringId {
  26                 DUMMY, // <-- TODO : remove
  27                 KEY_ACTION_BACK, KEY_ACTION_HELP, KEY_ACTION_VIEW_CONTACT, KEY_ACTION_VIEW_CARD, KEY_ACTION_EDIT_CONTACT, KEY_ACTION_SWITCH_FORMAT, NULL;
  28
  29                 public String trans() {
  30                         return Trans.getInstance().trans(this);
  31                 }
  32         };
  33
  34         /**
  35          * Get the (unique) instance of this class.
  36          *
  37          * @return the (unique) instance
  38          */
  39         static public Trans getInstance() {
  40                 synchronized (lock) {
  41                         if (instance == null)
  42                                 instance = new Trans();
  43                 }
  44
  45                 return instance;
  46         }
  47
  48         public String trans(StringId stringId) {
  49                 if (map.containsKey(stringId)) {
  50                         return map.get(stringId);
  51                 }
  52
  53                 return stringId.toString();
  54         }
  55
  56         private Trans() {
  57                 map = new HashMap<StringId, String>();
  58
  59                 // TODO: get from a file instead?
  60                 map.put(StringId.NULL, "");
  61                 map.put(StringId.DUMMY, "[dummy]");
  62                 map.put(StringId.KEY_ACTION_BACK, "Back");
  63                 map.put(StringId.KEY_ACTION_VIEW_CONTACT, "view");
  64                 map.put(StringId.KEY_ACTION_EDIT_CONTACT, "edit");
  65                 map.put(StringId.KEY_ACTION_SWITCH_FORMAT, "Change view");
  66         }
  67 }