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Core library of the Free Evolutionary Algorithm Toolkit
There is a newer version: 0.4.7
/*
 * @(#)DefaultResourceBundle.java 1.0 04.08.2003
 *
 * Copyright (C) 2003 sven_luzar
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */
package org.jgraph.pad.resources;

import java.util.*;


/**Defaultresourcebundle for proper names. (e.g. Locales and
 * Look And Feel names are equal in any language. Therefore
 * this Class contains this proper names.)
 *
 * @author Sven luzar
 * @version 1.0
 */

public class DefaultResourceBundle extends ResourceBundle  {

  /** Hashtable with languageskeys as key and
   *  propername as value
   *
   */
  Hashtable defaultNames = new Hashtable();

  /** A list of registered provider.
   *
   *
   */
  Vector properNameProvider = new Vector();

  /** Creates a new Instance an requerys all default names.
   *
   */
  public DefaultResourceBundle() {
    super();
    requeryDefaultNames();
  }

  /** Adds the Propernameprovider and asks him for
   *  the proper names.
   *
   */
  public void addProperNameProvider(ProperNameProvider provider){
    properNameProvider.add(provider);

    Enumeration keys = provider.getKeys();
    while (keys.hasMoreElements()){
      String key = (String)keys.nextElement();
      String value = provider.getString(key);
      if (key != null && value != null){
        defaultNames.put(key, value);
      }
    }
  }

  /** removes the propernameprovider
   *
   */
  public void removeProperNameProvider(ProperNameProvider provider){
    properNameProvider.remove(provider);
    requeryDefaultNames();
  }

  /** Quires the default names. Therefore any registered
   *  Propernameprovider is queried.
   *
   */
  public void requeryDefaultNames(){
    defaultNames.clear();

    Locale[] locales = Locale.getAvailableLocales();
    for (int i = 0; i < locales.length; i++){
      defaultNames.put("Component." + locales[i].toString() + ".Text",        locales[i].getDisplayName());
      defaultNames.put("Component." + locales[i].toString() + ".ToolTipText", locales[i].getDisplayName());
      defaultNames.put("Component." + locales[i].toString() + ".Mnemonic",    locales[i].getDisplayName());
    }

    // update Values of the ProperNameProviders
    Enumeration oEnum = properNameProvider.elements();
    while (oEnum.hasMoreElements()){
      ProperNameProvider provider = (ProperNameProvider)oEnum.nextElement();
      Enumeration keys = provider.getKeys();
      while (keys.hasMoreElements()){
        String key = (String)keys.nextElement();
        defaultNames.put(key, provider.getString(key));
      }
    }

  }

  /** merges the keys of any registered ProperNameProvider and returns them.
   *
   */
  public Enumeration getKeys() {
    return defaultNames.elements();
  }

  /** Returns the object for the key or null
   *
   */
  public Object handleGetObject(String key) {
    return defaultNames.get(key);
  }
}