/[schmitzm]/trunk/src/skrueger/i8n/Translation.java
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Diff of /trunk/src/skrueger/i8n/Translation.java

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revision 2 by mojays, Tue Feb 24 22:43:52 2009 UTC revision 37 by alfonx, Mon Mar 30 00:43:08 2009 UTC
# Line 1  Line 1 
1  package skrueger.i8n;  package skrueger.i8n;
2    import java.beans.PropertyChangeEvent;
3    import java.beans.PropertyChangeListener;
4    import java.util.ArrayList;
5  import java.util.HashMap;  import java.util.HashMap;
6  import java.util.List;  import java.util.List;
7  import java.util.Locale;  import java.util.Locale;
8    
9    import javax.swing.JComponent;
10    
11  import org.apache.log4j.Logger;  import org.apache.log4j.Logger;
12    
13  /**  /**
# Line 12  import org.apache.log4j.Logger; Line 17  import org.apache.log4j.Logger;
17   * @author @author <a href="mailto:[email protected]">Stefan Alfons Kr&uuml;ger</a>   * @author @author <a href="mailto:[email protected]">Stefan Alfons Kr&uuml;ger</a>
18   */   */
19    
20  public class Translation extends HashMap<String, String> {  public class Translation extends HashMap<String, String>{
21            public static final String LOCALECHANGE_PROPERTY = "localechange";
22          public static final String NO_TRANSLATION = "NO TRANSLATION";          public static final String NO_TRANSLATION = "NO TRANSLATION";
23          public static final String DEFAULT_KEY = "default";          public static final String DEFAULT_KEY = "default";
24          static final Logger log = Logger.getLogger( Translation.class );          static final Logger log = Logger.getLogger( Translation.class );
25          static String activeLang = "fr";          static String activeLang = "fr";
26    
27            static protected List<PropertyChangeListener> listeners = new ArrayList<PropertyChangeListener>();
28            
29          static {          static {
30                                    
31                  //TODO default aus Locale auslesen und mit möglichen vergleichen... mmm.. vor laden von atlasml immer DEFAULT_KEY, also hier nicht                  //TODO default aus Locale auslesen und mit möglichen vergleichen... mmm.. vor laden von atlasml immer DEFAULT_KEY, also hier nicht
# Line 28  public class Translation extends HashMap Line 36  public class Translation extends HashMap
36          }          }
37                    
38          @Override          @Override
39            /**
40             * @comment To make a copy of a translation see methods toOneLine() and fromOneLine()
41             */
42          public Translation clone() {          public Translation clone() {
43                  return (Translation) super.clone();                  return (Translation) super.clone();
44          }          }
# Line 40  public class Translation extends HashMap Line 51  public class Translation extends HashMap
51          }          }
52    
53          /**          /**
54           * Set up the {@link Translation}-system to use language.           * Set up the {@link Translation}-system to use language. If a change is performed, events are fired to listeners. Nothing is done if the new language equals the old language.
55           * @param activeLang           *
56             * @param newLang The ISO Code of the new active language
57           */           */
58          public static void setActiveLang(String activeLang) {          public static void setActiveLang(String newLang) {
59                  if (!I8NUtil.isValidISOLangCode(activeLang)) {                  if (getActiveLang().equals(newLang)) {
60                          throw new IllegalArgumentException("'"+activeLang+"' is not a valid ISO language code.");                          return;
61                    }
62                    
63                    if (!I8NUtil.isValidISOLangCode(newLang)) {
64                            throw new IllegalArgumentException("'"+newLang+"' is not a valid ISO language code.");
65                  }                  }
66    
67                  Locale.setDefault(new Locale(activeLang));                  Locale newLocale = new Locale(newLang);
68                  Translation.activeLang = activeLang;                  Locale.setDefault(newLocale);
69                  log.info("Translation-system switched to "+activeLang);                  
70                    /**
71                     * Setting default locale for Swing JComponents to work around bug
72                     * http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4884480
73                     */
74                    JComponent.setDefaultLocale(newLocale);
75                    
76                    Translation.activeLang = newLang;
77                    
78                    fireChangeEvents();
79                    
80                    log.info("skrueger.i8n.Translation switched ActiveLang to "+newLang);
81          }          }
82    
83          /**          /**
84           * Initilises a new {@link Translation} with a default translation.           * Initializes a new {@link Translation} with a default translation.
85           * Other translations may be added later.           * Other translations may be added later.
86           *           *
87           * @param defaultTranslation           * @param defaultTranslation
# Line 70  public class Translation extends HashMap Line 97  public class Translation extends HashMap
97          }          }
98    
99          /**          /**
100           * Initilises a new {@link Translation}, an uses the given String to           * Initializes a new {@link Translation}, an uses the given String to
101           * initialise the {@link Translation} for all languages codes passed.           * initialize the {@link Translation} for all languages codes passed.
102           *           *
103           * The translations can be cahnged later           * The translations can be changed later
104           */           */
105          public Translation(List<String> languages, String defaultTranslation) {          public Translation(List<String> languages, String defaultTranslation) {
106                  // put(DEFAULT_KEY, defaultTranslation);                  // put(DEFAULT_KEY, defaultTranslation);
# Line 190  public class Translation extends HashMap Line 217  public class Translation extends HashMap
217                  }                  }
218                  return backup;                  return backup;
219          }          }
220            
221            
222            /**
223             * {@link PropertyChangeListener} can be registered to be informed when the
224             * {@link Locale} changed.
225             *
226             * @param propertyChangeListener
227             */
228            public static void addLocaleChangeListener(PropertyChangeListener propertyChangeListener) {
229                    listeners.add(propertyChangeListener);
230            }
231    
232            /**
233             * Informs all registered {@link PropertyChangeListener}s about a change of the
234             * the {@link Locale}.  
235             */
236            public static void fireChangeEvents() {
237                    PropertyChangeEvent pce = new PropertyChangeEvent(new Translation(new ArrayList<String>(), "fakeSource"), LOCALECHANGE_PROPERTY,
238                                    null, getActiveLang());
239                    for (PropertyChangeListener pcl : listeners) {
240                            if (pcl != null)
241                                    pcl.propertyChange(pce);
242                    }
243            }
244    
245    
246  }  }
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