src/main/java/charactermanaj/model/CharacterDataChangeObserver.java

   1 package charactermanaj.model;\r
   2 \r
   3 import javax.swing.event.EventListenerList;\r
   4 \r
   5 \r
   6 /**\r
   7  * キャラクターデータが変更されたことを通知するためのメカニズム\r
   8  * \r
   9  * @author seraphy\r
  10  * \r
  11  */\r
  12 public abstract class CharacterDataChangeObserver {\r
  13 \r
  14         private static CharacterDataChangeObserver inst = new CharacterDataChangeObserverImpl();\r
  15 \r
  16         public static CharacterDataChangeObserver getDefault() {\r
  17                 return inst;\r
  18         }\r
  19 \r
  20         public abstract void addCharacterDataChangeListener(\r
  21                         CharacterDataChangeListener l);\r
  22 \r
  23         public abstract void removeCharacterDataChangeListener(\r
  24                         CharacterDataChangeListener l);\r
  25 \r
  26         public abstract void notifyCharacterDataChange(CharacterDataChangeEvent e);\r
  27 \r
  28         public void notifyCharacterDataChange(Object wnd, CharacterData cd,\r
  29                         boolean changeStructure, boolean reloadPartsAndFavorites) {\r
  30                 if (cd == null) {\r
  31                         throw new IllegalArgumentException();\r
  32                 }\r
  33                 notifyCharacterDataChange(new CharacterDataChangeEvent(wnd, cd,\r
  34                                 changeStructure, reloadPartsAndFavorites));\r
  35         }\r
  36 }\r
  37 \r
  38 class CharacterDataChangeObserverImpl extends CharacterDataChangeObserver {\r
  39 \r
  40         private EventListenerList listeners = new EventListenerList();\r
  41 \r
  42         @Override\r
  43         public void addCharacterDataChangeListener(CharacterDataChangeListener l) {\r
  44                 listeners.add(CharacterDataChangeListener.class, l);\r
  45         }\r
  46 \r
  47         @Override\r
  48         public void removeCharacterDataChangeListener(CharacterDataChangeListener l) {\r
  49                 listeners.remove(CharacterDataChangeListener.class, l);\r
  50         }\r
  51 \r
  52         @Override\r
  53         public void notifyCharacterDataChange(CharacterDataChangeEvent e) {\r
  54                 if (e == null) {\r
  55                         throw new IllegalArgumentException();\r
  56                 }\r
  57                 CharacterDataChangeListener[] lst = listeners\r
  58                                 .getListeners(CharacterDataChangeListener.class);\r
  59                 for (CharacterDataChangeListener l : lst) {\r
  60                         l.notifyChangeCharacterData(e);\r
  61                 }\r
  62         }\r
  63 }\r
  64 \r