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			949 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			Java
		
	
	
	
			
		
		
	
	
			949 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			Java
		
	
	
	
| /* UIManager.java --
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|    Copyright (C) 2002, 2003, 2004, 2005, 2006,  Free Software Foundation, Inc.
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| 
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| This file is part of GNU Classpath.
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| 
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| GNU Classpath is free software; you can redistribute it and/or modify
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| it under the terms of the GNU General Public License as published by
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| the Free Software Foundation; either version 2, or (at your option)
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| any later version.
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| 
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| GNU Classpath is distributed in the hope that it will be useful, but
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| WITHOUT ANY WARRANTY; without even the implied warranty of
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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| General Public License for more details.
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| 
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| You should have received a copy of the GNU General Public License
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| along with GNU Classpath; see the file COPYING.  If not, write to the
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| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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| 02110-1301 USA.
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| 
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| Linking this library statically or dynamically with other modules is
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| making a combined work based on this library.  Thus, the terms and
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| conditions of the GNU General Public License cover the whole
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| combination.
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| 
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| As a special exception, the copyright holders of this library give you
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| permission to link this library with independent modules to produce an
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| executable, regardless of the license terms of these independent
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| modules, and to copy and distribute the resulting executable under
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| terms of your choice, provided that you also meet, for each linked
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| independent module, the terms and conditions of the license of that
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| module.  An independent module is a module which is not derived from
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| or based on this library.  If you modify this library, you may extend
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| this exception to your version of the library, but you are not
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| obligated to do so.  If you do not wish to do so, delete this
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| exception statement from your version. */
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| 
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| 
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| package javax.swing;
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| 
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| import gnu.java.lang.CPStringBuilder;
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| 
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| import java.awt.Color;
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| import java.awt.Dimension;
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| import java.awt.Font;
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| import java.awt.Insets;
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| import java.beans.PropertyChangeListener;
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| import java.beans.PropertyChangeSupport;
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| import java.io.Serializable;
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| import java.util.Enumeration;
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| import java.util.Locale;
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| 
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| import javax.swing.border.Border;
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| import javax.swing.plaf.ComponentUI;
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| import javax.swing.plaf.metal.MetalLookAndFeel;
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| 
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| /**
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|  * Manages the current {@link LookAndFeel} and any auxiliary {@link LookAndFeel}
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|  * instances.
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|  */
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| public class UIManager implements Serializable
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| {
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|   /**
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|    * Represents the basic information about a {@link LookAndFeel} (LAF), so
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|    * that a list of installed LAFs can be presented without actually loading
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|    * the LAF class(es).
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|    */
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|   public static class LookAndFeelInfo
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|   {
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|     String name, clazz;
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| 
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|     /**
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|      * Creates a new instance.
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|      *
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|      * @param name  the look and feel name.
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|      * @param clazz  the look and feel class name.
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|      */
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|     public LookAndFeelInfo(String name,
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|                            String clazz)
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|     {
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|       this.name  = name;
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|       this.clazz = clazz;
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|     }
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| 
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|     /**
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|      * Returns the name of the look and feel.
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|      *
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|      * @return The name of the look and feel.
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|      */
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|     public String getName()
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|     {
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|       return name;
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|     }
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| 
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|     /**
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|      * Returns the fully qualified class name for the {@link LookAndFeel}.
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|      *
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|      * @return The fully qualified class name for the {@link LookAndFeel}.
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|      */
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|     public String getClassName()
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|     {
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|       return clazz;
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|     }
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| 
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|     /**
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|      * Returns a String representation of the LookAndFeelInfo object.
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|      *
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|      * @return a String representation of the LookAndFeelInfo object
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|      */
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|     public String toString()
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|     {
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|       CPStringBuilder s = new CPStringBuilder();
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|       s.append(getClass().getName());
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|       s.append('[');
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|       s.append(getName());
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|       s.append(' ');
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|       s.append(getClassName());
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|       s.append(']');
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|       return s.toString();
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|     }
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|   }
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| 
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|   /**
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|    * A UIDefaults subclass that multiplexes between itself and a 'fallback'
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|    * UIDefaults instance. This is used to protect the L&F UIDefaults from beeing
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|    * overwritten by applications.
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|    */
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|   private static class MultiplexUIDefaults
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|     extends UIDefaults
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|   {
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|     private class MultiplexEnumeration
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|       implements Enumeration
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|     {
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|       Enumeration[] enums;
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|       int i;
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|       MultiplexEnumeration(Enumeration e1, Enumeration e2)
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|       {
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|         enums = new Enumeration[]{ e1, e2 };
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|         i = 0;
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|       }
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| 
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|       public boolean hasMoreElements()
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|       {
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|         return enums[i].hasMoreElements() || i < enums.length - 1;
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|       }
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| 
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|       public Object nextElement()
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|       {
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|         Object val = enums[i].nextElement();
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|         if (! enums[i].hasMoreElements() && i < enums.length - 1)
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|           i++;
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|         return val;
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|       }
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| 
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|     }
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| 
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|     UIDefaults fallback;
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| 
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|     /**
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|      * Creates a new <code>MultiplexUIDefaults</code> instance with
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|      * <code>d</code> as the fallback defaults.
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|      *
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|      * @param d  the fallback defaults (<code>null</code> not permitted).
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|      */
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|     MultiplexUIDefaults(UIDefaults d)
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|     {
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|       if (d == null)
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|         throw new NullPointerException();
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|       fallback = d;
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|     }
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| 
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|     public Object get(Object key)
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|     {
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|       Object val = super.get(key);
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|       if (val == null)
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|         val = fallback.get(key);
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|       return val;
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|     }
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| 
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|     public Object get(Object key, Locale l)
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|     {
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|       Object val = super.get(key, l);
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|       if (val == null)
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|         val = fallback.get(key, l);
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|       return val;
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|     }
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| 
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|     public Object remove(Object key)
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|     {
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|       Object val = super.remove(key);
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|       if (val == null)
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|         val = fallback.remove(key);
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|       return val;
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|     }
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| 
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|     public int size()
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|     {
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|       return super.size() + fallback.size();
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|     }
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| 
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|     public Enumeration keys()
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|     {
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|       return new MultiplexEnumeration(super.keys(), fallback.keys());
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|     }
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| 
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|     public Enumeration elements()
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|     {
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|       return new MultiplexEnumeration(super.elements(), fallback.elements());
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|     }
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|   }
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| 
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|   private static final long serialVersionUID = -5547433830339189365L;
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| 
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|   /** The installed look and feel(s). */
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|   static LookAndFeelInfo [] installed = {
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|     new LookAndFeelInfo("Metal", "javax.swing.plaf.metal.MetalLookAndFeel"),
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|     new LookAndFeelInfo("GNU", "gnu.javax.swing.plaf.gnu.GNULookAndFeel")
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|   };
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| 
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|   /** The installed auxiliary look and feels. */
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|   static LookAndFeel[] auxLookAndFeels;
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| 
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|   /** The current look and feel. */
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|   static LookAndFeel currentLookAndFeel;
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| 
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|   static MultiplexUIDefaults currentUIDefaults;
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| 
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|   static UIDefaults lookAndFeelDefaults;
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| 
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|   /** Property change listener mechanism. */
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|   static PropertyChangeSupport listeners
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|       = new PropertyChangeSupport(UIManager.class);
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| 
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|   static
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|   {
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|     String defaultlaf = System.getProperty("swing.defaultlaf");
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|     try
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|       {
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|         if (defaultlaf != null)
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|           {
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|             setLookAndFeel(defaultlaf);
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|           }
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|         else
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|           {
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|             setLookAndFeel(new MetalLookAndFeel());
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|           }
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|       }
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|     catch (Exception ex)
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|       {
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|         System.err.println("cannot initialize Look and Feel: " + defaultlaf);
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|         System.err.println("error: " + ex.toString());
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|         ex.printStackTrace();
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|         System.err.println("falling back to Metal Look and Feel");
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|         try
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|           {
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|             setLookAndFeel(new MetalLookAndFeel());
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|           }
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|         catch (Exception ex2)
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|         {
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|           throw (Error) new AssertionError("There must be no problem installing"
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|                                            + " the MetalLookAndFeel.")
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|                                            .initCause(ex2);
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|         }
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|       }
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|   }
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| 
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|   /**
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|    * Creates a new instance of the <code>UIManager</code>.  There is no need
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|    * to construct an instance of this class, since all methods are static.
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|    */
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|   public UIManager()
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|   {
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|     // Do nothing here.
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|   }
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| 
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|   /**
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|    * Add a <code>PropertyChangeListener</code> to the listener list.
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|    *
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|    * @param listener the listener to add
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|    */
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|   public static void addPropertyChangeListener(PropertyChangeListener listener)
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|   {
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|     listeners.addPropertyChangeListener(listener);
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|   }
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| 
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|   /**
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|    * Remove a <code>PropertyChangeListener</code> from the listener list.
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|    *
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|    * @param listener the listener to remove
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|    */
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|   public static void removePropertyChangeListener(PropertyChangeListener
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|           listener)
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|   {
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|     listeners.removePropertyChangeListener(listener);
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|   }
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| 
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|   /**
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|    * Returns an array of all added <code>PropertyChangeListener</code> objects.
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|    *
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|    * @return an array of listeners
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|    *
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|    * @since 1.4
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|    */
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|   public static PropertyChangeListener[] getPropertyChangeListeners()
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|   {
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|     return listeners.getPropertyChangeListeners();
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|   }
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| 
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|   /**
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|    * Add a {@link LookAndFeel} to the list of auxiliary look and feels.
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|    *
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|    * @param laf  the auxiliary look and feel (<code>null</code> not permitted).
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|    *
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|    * @throws NullPointerException if <code>laf</code> is <code>null</code>.
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|    *
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|    * @see #getAuxiliaryLookAndFeels()
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|    */
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|   public static void addAuxiliaryLookAndFeel(LookAndFeel laf)
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|   {
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|     if (laf == null)
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|       throw new NullPointerException("Null 'laf' argument.");
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|     if (auxLookAndFeels == null)
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|       {
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|         auxLookAndFeels = new LookAndFeel[1];
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|         auxLookAndFeels[0] = laf;
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|         return;
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|       }
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| 
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|     LookAndFeel[] temp = new LookAndFeel[auxLookAndFeels.length + 1];
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|     System.arraycopy(auxLookAndFeels, 0, temp, 0, auxLookAndFeels.length);
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|     auxLookAndFeels = temp;
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|     auxLookAndFeels[auxLookAndFeels.length - 1] = laf;
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|   }
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| 
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|   /**
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|    * Removes a {@link LookAndFeel} (LAF) from the list of auxiliary LAFs.
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|    *
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|    * @param laf  the LAF to remove.
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|    *
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|    * @return <code>true</code> if the LAF was removed, and <code>false</code>
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|    *         otherwise.
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|    */
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|   public static boolean removeAuxiliaryLookAndFeel(LookAndFeel laf)
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|   {
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|     if (auxLookAndFeels == null)
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|       return false;
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|     int count = auxLookAndFeels.length;
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|     if (count == 1 && auxLookAndFeels[0] == laf)
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|       {
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|         auxLookAndFeels = null;
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|         return true;
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|       }
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|     for (int i = 0; i < count; i++)
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|       {
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|         if (auxLookAndFeels[i] == laf)
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|           {
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|             LookAndFeel[] temp = new LookAndFeel[auxLookAndFeels.length - 1];
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|             if (i == 0)
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|               {
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|                 System.arraycopy(auxLookAndFeels, 1, temp, 0, count - 1);
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|               }
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|             else if (i == count - 1)
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|               {
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|                 System.arraycopy(auxLookAndFeels, 0, temp, 0, count - 1);
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|               }
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|             else
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|               {
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|                 System.arraycopy(auxLookAndFeels, 0, temp, 0, i);
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|                 System.arraycopy(auxLookAndFeels, i + 1, temp, i,
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|                         count - i - 1);
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|               }
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|             auxLookAndFeels = temp;
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|             return true;
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|           }
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|       }
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|     return false;
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|   }
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| 
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|   /**
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|    * Returns an array (possibly <code>null</code>) containing the auxiliary
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|    * {@link LookAndFeel}s that are in use.  These are used by the
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|    * {@link javax.swing.plaf.multi.MultiLookAndFeel} class.
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|    *
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|    * @return The auxiliary look and feels (possibly <code>null</code>).
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|    *
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|    * @see #addAuxiliaryLookAndFeel(LookAndFeel)
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|    */
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|   public static LookAndFeel[] getAuxiliaryLookAndFeels()
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|   {
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|     return auxLookAndFeels;
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|   }
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| 
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|   /**
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|    * Returns an object from the {@link UIDefaults} table for the current
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|    * {@link LookAndFeel}.
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|    *
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|    * @param key  the key.
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|    *
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|    * @return The object.
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|    */
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|   public static Object get(Object key)
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|   {
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|     return getDefaults().get(key);
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|   }
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| 
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|   /**
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|    * Returns an object from the {@link UIDefaults} table for the current
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|    * {@link LookAndFeel}.
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|    *
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|    * @param key  the key.
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|    *
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|    * @return The object.
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|    *
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|    * @since 1.4
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|    */
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|   public static Object get(Object key, Locale locale)
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|   {
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|     return getDefaults().get(key, locale);
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|   }
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| 
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|   /**
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|    * Returns a boolean value from the defaults table.  If there is no value
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|    * for the specified key, or the value is not an instance of {@link Boolean},
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|    * this method returns <code>false</code>.
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|    *
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|    * @param key  the key (<code>null</code> not permitted).
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|    *
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|    * @return The boolean value associated with the specified key.
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|    *
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|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
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|    *
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|    * @since 1.4
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|    */
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|   public static boolean getBoolean(Object key)
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|   {
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|     Object value = get(key);
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|     if (value instanceof Boolean)
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|       return ((Boolean) value).booleanValue();
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|     return false;
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|   }
 | |
| 
 | |
|   /**
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|    * Returns a boolean value from the defaults table.  If there is no value
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|    * for the specified key, or the value is not an instance of {@link Boolean},
 | |
|    * this method returns <code>false</code>.
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|    *
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|    * @param key  the key (<code>null</code> not permitted).
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|    * @param locale  the locale.
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|    *
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|    * @return The boolean value associated with the specified key.
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|    *
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|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    *
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|    * @since 1.4
 | |
|    */
 | |
|   public static boolean getBoolean(Object key, Locale locale)
 | |
|   {
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|     Object value = get(key, locale);
 | |
|     if (value instanceof Boolean)
 | |
|       return ((Boolean) value).booleanValue();
 | |
|     return false;
 | |
|   }
 | |
| 
 | |
|   /**
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|    * Returns a border from the defaults table.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    *
 | |
|    * @return The border associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    */
 | |
|   public static Border getBorder(Object key)
 | |
|   {
 | |
|     Object value = get(key);
 | |
|     if (value instanceof Border)
 | |
|       return (Border) value;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns a border from the defaults table.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    * @param locale  the locale.
 | |
|    *
 | |
|    * @return The border associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    *
 | |
|    * @since 1.4
 | |
|    */
 | |
|   public static Border getBorder(Object key, Locale locale)
 | |
|   {
 | |
|     Object value = get(key, locale);
 | |
|     if (value instanceof Border)
 | |
|       return (Border) value;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns a drawing color from the defaults table.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    *
 | |
|    * @return The color associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    */
 | |
|   public static Color getColor(Object key)
 | |
|   {
 | |
|     Object value = get(key);
 | |
|     if (value instanceof Color)
 | |
|       return (Color) value;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns a drawing color from the defaults table.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    * @param locale  the locale.
 | |
|    *
 | |
|    * @return The color associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    *
 | |
|    * @since 1.4
 | |
|    */
 | |
|   public static Color getColor(Object key, Locale locale)
 | |
|   {
 | |
|     Object value = get(key, locale);
 | |
|     if (value instanceof Color)
 | |
|       return (Color) value;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * The fully qualified class name of the cross platform (Metal) look and feel.
 | |
|    * This string can be passed to Class.forName()
 | |
|    *
 | |
|    * @return <code>"javax.swing.plaf.metal.MetalLookAndFeel"</code>
 | |
|    */
 | |
|   public static String getCrossPlatformLookAndFeelClassName()
 | |
|   {
 | |
|     return "javax.swing.plaf.metal.MetalLookAndFeel";
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns the default values for this look and feel.
 | |
|    *
 | |
|    * @return The {@link UIDefaults} for the current {@link LookAndFeel}.
 | |
|    */
 | |
|   public static UIDefaults getDefaults()
 | |
|   {
 | |
|     if (currentUIDefaults == null)
 | |
|       currentUIDefaults = new MultiplexUIDefaults(new UIDefaults());
 | |
|     return currentUIDefaults;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns a dimension from the defaults table.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    *
 | |
|    * @return The color associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    */
 | |
|   public static Dimension getDimension(Object key)
 | |
|   {
 | |
|     Object value = get(key);
 | |
|     if (value instanceof Dimension)
 | |
|       return (Dimension) value;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns a dimension from the defaults table.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    * @param locale  the locale.
 | |
|    *
 | |
|    * @return The color associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    * @since 1.4
 | |
|    */
 | |
|   public static Dimension getDimension(Object key, Locale locale)
 | |
|   {
 | |
|     Object value = get(key, locale);
 | |
|     if (value instanceof Dimension)
 | |
|       return (Dimension) value;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Retrieves a font from the defaults table of the current
 | |
|    * LookAndFeel.
 | |
|    *
 | |
|    * @param key an Object that specifies the font. Typically,
 | |
|    *        this is a String such as
 | |
|    *        <code>TitledBorder.font</code>.
 | |
|    *
 | |
|    * @return The font associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    */
 | |
|   public static Font getFont(Object key)
 | |
|   {
 | |
|     Object value = get(key);
 | |
|     if (value instanceof Font)
 | |
|       return (Font) value;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Retrieves a font from the defaults table of the current
 | |
|    * LookAndFeel.
 | |
|    *
 | |
|    * @param key an Object that specifies the font. Typically,
 | |
|    *        this is a String such as
 | |
|    *        <code>TitledBorder.font</code>.
 | |
|    * @param locale  the locale.
 | |
|    *
 | |
|    * @return The font associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    *
 | |
|    * @since 1.4
 | |
|    */
 | |
|   public static Font getFont(Object key, Locale locale)
 | |
|   {
 | |
|     Object value = get(key, locale);
 | |
|     if (value instanceof Font)
 | |
|       return (Font) value;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns an icon from the defaults table.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    *
 | |
|    * @return The icon associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    */
 | |
|   public static Icon getIcon(Object key)
 | |
|   {
 | |
|     Object value = get(key);
 | |
|     if (value instanceof Icon)
 | |
|       return (Icon) value;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns an icon from the defaults table.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    * @param locale  the locale.
 | |
|    *
 | |
|    * @return The icon associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    * @since 1.4
 | |
|    */
 | |
|   public static Icon getIcon(Object key, Locale locale)
 | |
|   {
 | |
|     Object value = get(key, locale);
 | |
|     if (value instanceof Icon)
 | |
|       return (Icon) value;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns an Insets object from the defaults table.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    *
 | |
|    * @return The insets associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    */
 | |
|   public static Insets getInsets(Object key)
 | |
|   {
 | |
|     Object o = get(key);
 | |
|     if (o instanceof Insets)
 | |
|       return (Insets) o;
 | |
|     else
 | |
|       return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns an Insets object from the defaults table.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    * @param locale  the locale.
 | |
|    *
 | |
|    * @return The insets associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @throws NullPointerException if <code>key</code> is <code>null</code>.
 | |
|    * @since 1.4
 | |
|    */
 | |
|   public static Insets getInsets(Object key, Locale locale)
 | |
|   {
 | |
|     Object o = get(key, locale);
 | |
|     if (o instanceof Insets)
 | |
|       return (Insets) o;
 | |
|     else
 | |
|       return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns an array containing information about the {@link LookAndFeel}s
 | |
|    * that are installed.
 | |
|    *
 | |
|    * @return A list of the look and feels that are available (installed).
 | |
|    */
 | |
|   public static LookAndFeelInfo[] getInstalledLookAndFeels()
 | |
|   {
 | |
|     return installed;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns the integer value of the {@link Integer} associated with the
 | |
|    * given key.  If there is no value, or the value is not an instance of
 | |
|    * {@link Integer}, this method returns 0.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    *
 | |
|    * @return The integer value associated with the given key, or 0.
 | |
|    */
 | |
|   public static int getInt(Object key)
 | |
|   {
 | |
|     Object x = get(key);
 | |
|     if (x instanceof Integer)
 | |
|       return ((Integer) x).intValue();
 | |
|     return 0;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns the integer value of the {@link Integer} associated with the
 | |
|    * given key.  If there is no value, or the value is not an instance of
 | |
|    * {@link Integer}, this method returns 0.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    * @param locale  the locale.
 | |
|    *
 | |
|    * @return The integer value associated with the given key, or 0.
 | |
|    *
 | |
|    * @since 1.4
 | |
|    */
 | |
|   public static int getInt(Object key, Locale locale)
 | |
|   {
 | |
|     Object x = get(key, locale);
 | |
|     if (x instanceof Integer)
 | |
|       return ((Integer) x).intValue();
 | |
|     return 0;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns the current look and feel (which may be <code>null</code>).
 | |
|    *
 | |
|    * @return The current look and feel.
 | |
|    *
 | |
|    * @see #setLookAndFeel(LookAndFeel)
 | |
|    */
 | |
|   public static LookAndFeel getLookAndFeel()
 | |
|   {
 | |
|     return currentLookAndFeel;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns the <code>UIDefaults</code> table of the currently active
 | |
|    * look and feel.
 | |
|    *
 | |
|    * @return The {@link UIDefaults} for the current {@link LookAndFeel}.
 | |
|    */
 | |
|   public static UIDefaults getLookAndFeelDefaults()
 | |
|   {
 | |
|     return lookAndFeelDefaults;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns the {@link String} associated with the given key.  If the value
 | |
|    * is not a {@link String}, this method returns <code>null</code>.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    *
 | |
|    * @return The string associated with the given key, or <code>null</code>.
 | |
|    */
 | |
|   public static String getString(Object key)
 | |
|   {
 | |
|     Object s = get(key);
 | |
|     if (s instanceof String)
 | |
|       return (String) s;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns the {@link String} associated with the given key.  If the value
 | |
|    * is not a {@link String}, this method returns <code>null</code>.
 | |
|    *
 | |
|    * @param key  the key (<code>null</code> not permitted).
 | |
|    * @param locale  the locale.
 | |
|    *
 | |
|    * @return The string associated with the given key, or <code>null</code>.
 | |
|    *
 | |
|    * @since 1.4
 | |
|    */
 | |
|   public static String getString(Object key, Locale locale)
 | |
|   {
 | |
|     Object s = get(key, locale);
 | |
|     if (s instanceof String)
 | |
|       return (String) s;
 | |
|     return null;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns the name of the {@link LookAndFeel} class that implements the
 | |
|    * native systems look and feel if there is one, otherwise the name
 | |
|    * of the default cross platform LookAndFeel class.
 | |
|    *
 | |
|    * @return The fully qualified class name for the system look and feel.
 | |
|    *
 | |
|    * @see #getCrossPlatformLookAndFeelClassName()
 | |
|    */
 | |
|   public static String getSystemLookAndFeelClassName()
 | |
|   {
 | |
|     return getCrossPlatformLookAndFeelClassName();
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Returns UI delegate from the current {@link LookAndFeel} that renders the
 | |
|    * target component.
 | |
|    *
 | |
|    * @param target  the target component.
 | |
|    */
 | |
|   public static ComponentUI getUI(JComponent target)
 | |
|   {
 | |
|     return getDefaults().getUI(target);
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Creates a new look and feel and adds it to the current array.
 | |
|    *
 | |
|    * @param name  the look and feel name.
 | |
|    * @param className  the fully qualified name of the class that implements the
 | |
|    *                   look and feel.
 | |
|    */
 | |
|   public static void installLookAndFeel(String name, String className)
 | |
|   {
 | |
|     installLookAndFeel(new LookAndFeelInfo(name, className));
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Adds the specified look and feel to the current array and then calls
 | |
|    * setInstalledLookAndFeels(javax.swing.UIManager.LookAndFeelInfo[]).
 | |
|    */
 | |
|   public static void installLookAndFeel(LookAndFeelInfo info)
 | |
|   {
 | |
|     LookAndFeelInfo[] newInstalled = new LookAndFeelInfo[installed.length + 1];
 | |
|     System.arraycopy(installed, 0, newInstalled, 0, installed.length);
 | |
|     newInstalled[newInstalled.length - 1] = info;
 | |
|     setInstalledLookAndFeels(newInstalled);
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Stores an object in the defaults table.
 | |
|    *
 | |
|    * @param key  the key.
 | |
|    * @param value  the value.
 | |
|    */
 | |
|   public static Object put(Object key, Object value)
 | |
|   {
 | |
|     return getDefaults().put(key, value);
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Replaces the current array of installed LookAndFeelInfos.
 | |
|    */
 | |
|   public static void setInstalledLookAndFeels(UIManager.LookAndFeelInfo[] infos)
 | |
|   {
 | |
|     installed = infos;
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Sets the current {@link LookAndFeel}.
 | |
|    *
 | |
|    * @param newLookAndFeel  the new look and feel (<code>null</code> permitted).
 | |
|    *
 | |
|    * @throws UnsupportedLookAndFeelException if the look and feel is not
 | |
|    *         supported on the current platform.
 | |
|    *
 | |
|    * @see LookAndFeel#isSupportedLookAndFeel()
 | |
|    */
 | |
|   public static void setLookAndFeel(LookAndFeel newLookAndFeel)
 | |
|     throws UnsupportedLookAndFeelException
 | |
|   {
 | |
|     if (newLookAndFeel != null && ! newLookAndFeel.isSupportedLookAndFeel())
 | |
|       throw new UnsupportedLookAndFeelException(newLookAndFeel.getName()
 | |
|                                          + " not supported on this platform");
 | |
|     LookAndFeel oldLookAndFeel = currentLookAndFeel;
 | |
|     if (oldLookAndFeel != null)
 | |
|       oldLookAndFeel.uninitialize();
 | |
| 
 | |
|     // Set the current default look and feel using a LookAndFeel object.
 | |
|     currentLookAndFeel = newLookAndFeel;
 | |
|     if (newLookAndFeel != null)
 | |
|       {
 | |
|         newLookAndFeel.initialize();
 | |
|         lookAndFeelDefaults = newLookAndFeel.getDefaults();
 | |
|         if (currentUIDefaults == null)
 | |
|           currentUIDefaults =
 | |
|             new MultiplexUIDefaults(lookAndFeelDefaults);
 | |
|         else
 | |
|           currentUIDefaults.fallback = lookAndFeelDefaults;
 | |
|       }
 | |
|     else
 | |
|       {
 | |
|         currentUIDefaults = null;
 | |
|       }
 | |
|     listeners.firePropertyChange("lookAndFeel", oldLookAndFeel, newLookAndFeel);
 | |
|     //revalidate();
 | |
|     //repaint();
 | |
|   }
 | |
| 
 | |
|   /**
 | |
|    * Set the current default look and feel using a class name.
 | |
|    *
 | |
|    * @param className  the look and feel class name.
 | |
|    *
 | |
|    * @throws UnsupportedLookAndFeelException if the look and feel is not
 | |
|    *         supported on the current platform.
 | |
|    *
 | |
|    * @see LookAndFeel#isSupportedLookAndFeel()
 | |
|    */
 | |
|   public static void setLookAndFeel(String className)
 | |
|     throws ClassNotFoundException, InstantiationException, IllegalAccessException,
 | |
|     UnsupportedLookAndFeelException
 | |
|   {
 | |
|     Class c = Class.forName(className, true,
 | |
|                             Thread.currentThread().getContextClassLoader());
 | |
|     LookAndFeel a = (LookAndFeel) c.newInstance(); // throws class-cast-exception
 | |
|     setLookAndFeel(a);
 | |
|   }
 | |
| }
 |