001    /**
002     * ========================================
003     * JFreeReport : a free Java report library
004     * ========================================
005     *
006     * Project Info:  http://reporting.pentaho.org/
007     *
008     * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
009     *
010     * This library is free software; you can redistribute it and/or modify it under the terms
011     * of the GNU Lesser General Public License as published by the Free Software Foundation;
012     * either version 2.1 of the License, or (at your option) any later version.
013     *
014     * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
015     * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
016     * See the GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public License along with this
019     * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
020     * Boston, MA 02111-1307, USA.
021     *
022     * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
023     * in the United States and other countries.]
024     *
025     * ------------
026     * $Id: JLabelLocaleUpdateHandler.java 3525 2007-10-16 11:43:48Z tmorgner $
027     * ------------
028     * (C) Copyright 2000-2005, by Object Refinery Limited.
029     * (C) Copyright 2005-2007, by Pentaho Corporation.
030     */
031    
032    package org.jfree.report.modules.gui.swing.common.localization;
033    
034    import java.awt.IllegalComponentStateException;
035    import java.beans.PropertyChangeEvent;
036    import java.beans.PropertyChangeListener;
037    import java.util.Locale;
038    import java.util.MissingResourceException;
039    import java.util.ResourceBundle;
040    import javax.swing.JLabel;
041    
042    /**
043     * Creation-Date: 30.11.2006, 13:04:07
044     *
045     * @author Thomas Morgner
046     */
047    public class JLabelLocaleUpdateHandler implements PropertyChangeListener
048    {
049      private String resourceBundleName;
050      private String resourceKey;
051      private JLabel target;
052    
053      public JLabelLocaleUpdateHandler(final JLabel target,
054                                       final String resourceBundleName,
055                                       final String resourceKey)
056      {
057        this.target = target;
058        this.resourceBundleName = resourceBundleName;
059        this.resourceKey = resourceKey;
060      }
061    
062      /**
063       * This method gets called when a bound property is changed.
064       *
065       * @param evt A PropertyChangeEvent object describing the event source and the
066       *            property that has changed.
067       */
068    
069      public void propertyChange(final PropertyChangeEvent evt)
070      {
071        try
072        {
073          final Locale locale = target.getLocale();
074          final ResourceBundle bundle =
075              ResourceBundle.getBundle(resourceBundleName, locale);
076          final String string = bundle.getString(resourceKey);
077          target.setText(string);
078        }
079        catch(IllegalComponentStateException ice)
080        {
081          target.setText("!ERROR: No Parent: " + resourceKey);
082        }
083        catch(MissingResourceException mre)
084        {
085          target.setText("!ERROR: MissingResource: " + resourceKey);
086        }
087    
088      }
089    }