/[schmitzm]/trunk/src/skrueger/i8n/Translation.java
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branches/2.0-RC1/src/skrueger/i8n/Translation.java revision 604 by alfonx, Wed Dec 9 14:15:53 2009 UTC trunk/src/skrueger/i8n/Translation.java revision 905 by alfonx, Thu Jun 10 08:00:37 2010 UTC
# Line 25  Line 25 
25   *   *
26   * Contributors:   * Contributors:
27   *     Martin O. J. Schmitz - initial API and implementation   *     Martin O. J. Schmitz - initial API and implementation
28   *     Stefan A. Krüger - additional utility classes   *     Stefan A. Tzeggai - additional utility classes
29   ******************************************************************************/   ******************************************************************************/
30  package skrueger.i8n;  package skrueger.i8n;
31    
# Line 33  import java.awt.event.ActionEvent; Line 33  import java.awt.event.ActionEvent;
33  import java.awt.event.ActionListener;  import java.awt.event.ActionListener;
34  import java.beans.PropertyChangeEvent;  import java.beans.PropertyChangeEvent;
35  import java.beans.PropertyChangeListener;  import java.beans.PropertyChangeListener;
36    import java.io.Serializable;
37  import java.util.ArrayList;  import java.util.ArrayList;
38  import java.util.HashMap;  import java.util.HashMap;
39  import java.util.Iterator;  import java.util.Iterator;
40  import java.util.List;  import java.util.List;
41  import java.util.Locale;  import java.util.Locale;
42  import java.util.Random;  import java.util.Random;
43    import java.util.Set;
44    import java.util.WeakHashMap;
45    
46  import javax.swing.JComponent;  import javax.swing.JComponent;
47    
# Line 46  import org.apache.log4j.Logger; Line 49  import org.apache.log4j.Logger;
49  import org.geotools.util.WeakHashSet;  import org.geotools.util.WeakHashSet;
50  import org.opengis.util.InternationalString;  import org.opengis.util.InternationalString;
51    
52    import schmitzm.lang.ResourceProvider;
53    import schmitzm.lang.SortableVector;
54  import skrueger.geotools.Copyable;  import skrueger.geotools.Copyable;
55    
56  /**  /**
# Line 53  import skrueger.geotools.Copyable; Line 58  import skrueger.geotools.Copyable;
58   * appropriate translation   * appropriate translation
59   *   *
60   * @author @author <a href="mailto:[email protected]">Stefan Alfons   * @author @author <a href="mailto:[email protected]">Stefan Alfons
61   *         Kr&uuml;ger</a>   *         Tzeggai</a>
62   */   */
63    
64  public class Translation extends HashMap<String, String> implements  public class Translation extends HashMap<String, String> implements
65                  Copyable<Translation> {                  Copyable<Translation>, Serializable {
66    
67            private static final long serialVersionUID = -347702744122305245L;
68    
69          public static final String LOCALECHANGE_PROPERTY = "localechange";          public static final String LOCALECHANGE_PROPERTY = "localechange";
70          public static final String NO_TRANSLATION = "NO TRANSLATION";          public static final String NO_TRANSLATION = "NO TRANSLATION";
71          public static final String DEFAULT_KEY = "default";          public static final String DEFAULT_KEY = "default";
72          static final Logger LOGGER = Logger.getLogger(Translation.class);          static final Logger LOGGER = Logger.getLogger(Translation.class);
73          static String activeLang = Locale.getDefault().getLanguage();          static String activeLang = Locale.getDefault().getLanguage();
74    
75          static protected List<PropertyChangeListener> listeners = new ArrayList<PropertyChangeListener>();          static protected WeakHashSet<PropertyChangeListener> listeners = new WeakHashSet<PropertyChangeListener>(
76                            PropertyChangeListener.class);
77    
78          static {          static {
79    
# Line 99  public class Translation extends HashMap Line 108  public class Translation extends HashMap
108          /**          /**
109           * Set up the {@link Translation}-system to use language. If a change is           * Set up the {@link Translation}-system to use language. If a change is
110           * performed, events are fired to listeners. Nothing is done if the new           * performed, events are fired to listeners. Nothing is done if the new
111           * language equals the old language. The system's default locale is changed.           * language equals the old language. The system's default {@link Locale} is changed.
112           *           *
113           * @param newLang           * @param newLang
114           *            The ISO Code of the new active language           *            The ISO Code of the new active language
# Line 143  public class Translation extends HashMap Line 152  public class Translation extends HashMap
152    
153                  fireLocaleChangeEvents();                  fireLocaleChangeEvents();
154    
155                  LOGGER.info("skrueger.i8n.Translation switched ActiveLang to " + newLang);                  LOGGER.info("skrueger.i8n.Translation switched ActiveLang to "
156                                    + newLang);
157          }          }
158    
159          /**          /**
# Line 175  public class Translation extends HashMap Line 185  public class Translation extends HashMap
185                          put(DEFAULT_KEY, defaultTranslation);                          put(DEFAULT_KEY, defaultTranslation);
186                  } else                  } else
187                          for (String code : languages) {                          for (String code : languages) {
188                                  if (code.equals(getActiveLang())) {                                  // if (code.equals(getActiveLang())) {
189                                          put(code, defaultTranslation);                                  put(code, defaultTranslation);
190                                  }                                  // }
191                          }                          }
192          }          }
193    
# Line 196  public class Translation extends HashMap Line 206  public class Translation extends HashMap
206           * <li>If format can't be recognized, the {@link String} is interpreted as           * <li>If format can't be recognized, the {@link String} is interpreted as
207           * the translation in the <code>{@value #DEFAULT_KEY}</code> language           * the translation in the <code>{@value #DEFAULT_KEY}</code> language
208           *           *
209           * @author Stefan Alfons Krüger           * @author Stefan Alfons Tzeggai
210           */           */
211          public void fromOneLine(final String oneLineCoded) {          public void fromOneLine(final String oneLineCoded) {
212    
# Line 237  public class Translation extends HashMap Line 247  public class Translation extends HashMap
247          /**          /**
248           * Exports the Translations to a String of the Format: "de{Baum}en{tree}"           * Exports the Translations to a String of the Format: "de{Baum}en{tree}"
249           *           *
250           * @author Stefan Alfons Krüger           * @author Stefan Alfons Tzeggai
251           */           */
252          public String toOneLine() {          public String toOneLine() {
253                  return I8NUtil.toOneLine(this);                  return I8NUtil.toOneLine(this);
# Line 284  public class Translation extends HashMap Line 294  public class Translation extends HashMap
294    
295          /**          /**
296           * {@link PropertyChangeListener} can be registered to be informed when the           * {@link PropertyChangeListener} can be registered to be informed when the
297           * {@link Locale} changed.           * {@link Locale} changed.<br>
298             * The listeners are kept in a {@link WeakHashMap}, so you have to keep a
299             * reference to the listener or it will be removed!
300           *           *
301           * @param propertyChangeListener           * @param propertyChangeListener
302             *            A {@link PropertyChangeListener} that will be called when
303             *            {@link #setActiveLang(String)} changes the language.
304           */           */
305          public static void addLocaleChangeListener(          public static void addLocaleChangeListener(
306                          PropertyChangeListener propertyChangeListener) {                          PropertyChangeListener propertyChangeListener) {
# Line 294  public class Translation extends HashMap Line 308  public class Translation extends HashMap
308          }          }
309    
310          /**          /**
311             * {@link PropertyChangeListener} can be registered to be informed when the
312             * {@link Locale} changed.<br>
313             * The listeners are kept in a {@link WeakHashMap}, so you have to keep a
314             * reference to the listener or it will be removed!
315             *
316             * @param propertyChangeListener
317             *            A {@link PropertyChangeListener} that will be called when
318             *            {@link #setActiveLang(String)} changes the language.
319             */
320            public static boolean removeLocaleChangeListener(
321                            PropertyChangeListener propertyChangeListener) {
322                    return listeners.remove(propertyChangeListener);
323            }
324    
325            /**
326           * Informs all registered {@link PropertyChangeListener}s about a change of           * Informs all registered {@link PropertyChangeListener}s about a change of
327           * the the {@link Locale}.           * the the {@link Locale}.
328           */           */
# Line 313  public class Translation extends HashMap Line 342  public class Translation extends HashMap
342           */           */
343          public void addTranslationChangeListener(ActionListener actionListener) {          public void addTranslationChangeListener(ActionListener actionListener) {
344                  if (actionListeners.add(actionListener)) {                  if (actionListeners.add(actionListener)) {
345                          LOGGER.debug("registering a new translationChangeActionListener in the WeakHashSet");                          // LOGGER
346                            // .debug("registering a new translationChangeActionListener in the WeakHashSet");
347                  }                  }
348          }          }
349    
# Line 393  public class Translation extends HashMap Line 423  public class Translation extends HashMap
423                  return true;                  return true;
424          }          }
425    
426            /**
427             * Goes through the available languages of the FIRST registered {@link ResourceProvider} and set the active locale to the fist match.
428             *
429             * @param fireChangeEvent if <code>true</code>, a Translation.fireLocaleChangeEvents() is issued.
430    
431             * @return
432             */
433            public static boolean setFirstmatchingLanguage(List<String> languages,
434                            boolean fireChangeEvent) {
435    
436                    SortableVector<ResourceProvider> registeredResourceProvider = ResourceProvider
437                                    .getRegisteredResourceProvider();
438                    Set<Locale> available = ResourceProvider.getAvailableLocales(
439                                    registeredResourceProvider.get(0), true);
440    
441                    for (String l : languages) {
442                            for (Locale loc : available) {
443                                    if (loc.getLanguage().equals(l)) {
444                                            Translation.setActiveLang(l);
445                                            if (fireChangeEvent)
446                                                    Translation.fireLocaleChangeEvents();
447                                            return true;
448                                    }
449                            }
450                    }
451    
452                    return false;
453    
454            }
455  }  }
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