mirror of git://gcc.gnu.org/git/gcc.git
				
				
				
			
		
			
				
	
	
		
			464 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Java
		
	
	
	
			
		
		
	
	
			464 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Java
		
	
	
	
| /* Copyright (C) 2000  Free Software Foundation
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| 
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|    This file is part of libgcj.
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| 
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| This software is copyrighted work licensed under the terms of the
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| Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
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| details.  */
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| 
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| package java.awt;
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| 
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| import java.awt.event.*;
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| import java.util.EventListener;
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| import java.io.ObjectOutputStream;
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| 
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| /* Written using on-line Java 2 Platform Standard Edition v1.3 API 
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|  * Specification, as well as "The Java Class Libraries", 2nd edition 
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|  * (Addison-Wesley, 1998).
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|  * Status:  Believed complete and correct to J2SE 1.3, except for 
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|  * serialization support methods, save() and saveInternal(), which are 
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|  * stubbed.
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|  */
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| 
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| /**
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|  * Convienience class for thread-safe multicasting of AWT events,
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|  * without synchronization.
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|  *
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|  * @author Bryce McKinlay
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|  */
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| 
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| public class AWTEventMulticaster implements ComponentListener, 
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|   ContainerListener, FocusListener, KeyListener, MouseListener,
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|   MouseMotionListener, WindowListener, ActionListener, ItemListener, 
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|   AdjustmentListener, TextListener, InputMethodListener, HierarchyListener, 
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|   HierarchyBoundsListener
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| {
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|   protected final EventListener a, b;                            
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| 
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|   protected AWTEventMulticaster(EventListener a,
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|                         	EventListener b)
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|   {
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|     this.a = a;
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|     this.b = b;
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|   }
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| 
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|   protected static EventListener addInternal(EventListener a, EventListener b)
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|   {
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|     if (a == null)
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|       return b;
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|     else if (b == null)
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|       return a;
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|     else return new AWTEventMulticaster(a, b);
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|   }
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|   
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|   protected static EventListener removeInternal(EventListener l, 
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| 						EventListener oldl)
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|   {
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|     if (l == oldl)
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|       return null;
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|     else if (l instanceof AWTEventMulticaster)
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|       {
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| 	AWTEventMulticaster mc = (AWTEventMulticaster) l;
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| 	return mc.remove(oldl);
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|       }
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|     return l;
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|   }
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| 
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|   /* Remove oldl from this multicaster. */
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|   protected EventListener remove(EventListener oldl)
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|   {
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|     // If oldl is an immediate child, return the other child.
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|     if (a == oldl)
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|       return b;
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|     if (b == oldl)
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|       return a;
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| 
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|     // If a and/or b are Multicaster's, search them recursivly. 
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|     if (a instanceof AWTEventMulticaster)
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|       {
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|         AWTEventMulticaster mc = (AWTEventMulticaster) a;
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| 	EventListener newa = mc.remove(oldl);
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| 	if (newa != a)
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| 	  return new AWTEventMulticaster (newa, b);
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|       }    
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|     if (b instanceof AWTEventMulticaster)
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|       {
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|         AWTEventMulticaster mc = (AWTEventMulticaster) a;
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| 	EventListener newb = mc.remove(oldl);
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| 	if (newb != b)
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| 	  return new AWTEventMulticaster (a, newb);
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|       }
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|       
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|     // oldl was not found.
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|     return this;
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|   }
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| 
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|   public static ActionListener add(ActionListener a, ActionListener b)
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|   {
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|     return (ActionListener) addInternal(a, b);
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|   }
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|   
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|   public static AdjustmentListener add(AdjustmentListener a, 
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| 				       AdjustmentListener b)
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|   {
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|     return (AdjustmentListener) addInternal(a, b);
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|   }				       
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| 				       
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|   public static ComponentListener add(ComponentListener a, ComponentListener b)
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|   {
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|     return (ComponentListener) addInternal(a, b);
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|   }
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|   
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|   public static ContainerListener add(ContainerListener a, ContainerListener b)
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|   {
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|     return (ContainerListener) addInternal(a, b);
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|   }
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|   
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|   public static FocusListener add(FocusListener a, FocusListener b) 
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|   {
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|     return (FocusListener) addInternal(a, b);
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|   }
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|   
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|   public static HierarchyBoundsListener add(HierarchyBoundsListener a, 
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| 					    HierarchyBoundsListener b)
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|   {
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|     return (HierarchyBoundsListener) addInternal(a, b);
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|   }
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| 					    
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|   public static HierarchyListener add(HierarchyListener a, HierarchyListener b)
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|   {
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|     return (HierarchyListener) addInternal(a, b);
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|   }
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|   
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|   public static InputMethodListener add(InputMethodListener a, 
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| 					InputMethodListener b)
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|   {
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|     return (InputMethodListener) addInternal(a, b);
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|   }
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| 					
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|   public static ItemListener add(ItemListener a, ItemListener b)
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|   {
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|     return (ItemListener) addInternal(a, b);
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|   }
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|   
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|   public static KeyListener add(KeyListener a, KeyListener b)
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|   {
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|     return (KeyListener) addInternal(a, b);
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|   }
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| 
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|   public static MouseListener add(MouseListener a, MouseListener b)
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|   {
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|     return (MouseListener) addInternal(a, b);
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|   }
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|   
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|   public static MouseMotionListener add(MouseMotionListener a, 
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| 					MouseMotionListener b)
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|   {
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|     return (MouseMotionListener) addInternal(a, b);
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|   }
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| 					
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|   public static TextListener add(TextListener a, TextListener b)
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|   {
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|     return (TextListener) addInternal(a, b);
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|   }
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|   
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|   public static WindowListener add(WindowListener a, WindowListener b)
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|   {
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|     return (WindowListener) addInternal(a, b);
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|   }
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|   
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|   public static ActionListener remove(ActionListener l, ActionListener oldl)
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|   {
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|     return (ActionListener) removeInternal(l, oldl);
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|   }
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|   
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|   public static AdjustmentListener remove(AdjustmentListener l, 
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| 					  AdjustmentListener oldl) 
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|   {
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|     return (AdjustmentListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static ComponentListener remove(ComponentListener l, 
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| 					 ComponentListener oldl) 
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|   {
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|     return (ComponentListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static ContainerListener remove(ContainerListener l, 
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| 					 ContainerListener oldl) 
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|   {
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|     return (ContainerListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static FocusListener remove(FocusListener l, FocusListener oldl) 
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|   {
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|     return (FocusListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static HierarchyBoundsListener remove(HierarchyBoundsListener l,
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|                 			       HierarchyBoundsListener oldl) 
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|   {
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|     return (HierarchyBoundsListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static HierarchyListener remove(HierarchyListener l, 
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| 					 HierarchyListener oldl) 
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|   {
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|     return (HierarchyListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static InputMethodListener remove(InputMethodListener l, 
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| 					   InputMethodListener oldl) 
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|   {
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|     return (InputMethodListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static ItemListener remove(ItemListener l, ItemListener oldl) 
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|   {
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|     return (ItemListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static KeyListener remove(KeyListener l, KeyListener oldl) 
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|   {
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|     return (KeyListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static MouseListener remove(MouseListener l, MouseListener oldl) 
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|   {
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|     return (MouseListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static MouseMotionListener remove(MouseMotionListener l, 
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| 					   MouseMotionListener oldl) 
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|   {
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|     return (MouseMotionListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static TextListener remove(TextListener l, TextListener oldl)                                            
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|   {
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|     return (TextListener) removeInternal(l, oldl);
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|   }
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| 
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|   public static WindowListener remove(WindowListener l, WindowListener oldl) 
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|   {
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|     return (WindowListener) removeInternal(l, oldl);
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|   }
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| 
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|   public void actionPerformed(ActionEvent e) 
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|   {
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|     ((ActionListener) a).actionPerformed(e);
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|     ((ActionListener) b).actionPerformed(e);
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|   }
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|   
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|   public void adjustmentValueChanged(AdjustmentEvent e) 
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|   {
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|     ((AdjustmentListener) a).adjustmentValueChanged(e);
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|     ((AdjustmentListener) b).adjustmentValueChanged(e);
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|   }
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|   
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|   public void componentHidden(ComponentEvent e)
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|   {
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|     ((ComponentListener) a).componentHidden(e);
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|     ((ComponentListener) b).componentHidden(e);
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|   }
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|   
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|   public void componentMoved(ComponentEvent e)
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|   {
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|     ((ComponentListener) a).componentMoved(e);
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|     ((ComponentListener) b).componentMoved(e);
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|   }
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|     
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|   public void componentResized(ComponentEvent e)
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|   {
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|     ((ComponentListener) a).componentResized(e);
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|     ((ComponentListener) b).componentResized(e);
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|   }
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|   
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|   public void componentShown(ComponentEvent e)
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|   {
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|     ((ComponentListener) a).componentShown(e);
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|     ((ComponentListener) b).componentShown(e);
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|   }
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|   
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|   public void componentAdded(ContainerEvent e)
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|   {
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|     ((ContainerListener) a).componentAdded(e);
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|     ((ContainerListener) b).componentAdded(e);
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|   }
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| 
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|   public void componentRemoved(ContainerEvent e)
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|   {
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|     ((ContainerListener) a).componentRemoved(e);
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|     ((ContainerListener) b).componentRemoved(e);
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|   }
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|   
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|   public void focusGained(FocusEvent e)
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|   {
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|     ((FocusListener) a).focusGained(e);
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|     ((FocusListener) b).focusGained(e);
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|   }
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|   
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|   public void focusLost(FocusEvent e) 
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|   {
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|     ((FocusListener) a).focusLost(e);
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|     ((FocusListener) b).focusLost(e);
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|   }
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|   
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| 
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|   public void ancestorMoved(HierarchyEvent e) 
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|   {
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|     ((HierarchyBoundsListener) a).ancestorMoved(e);
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|     ((HierarchyBoundsListener) b).ancestorMoved(e);
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|   }
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|   
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|   public void ancestorResized(HierarchyEvent e) 
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|   {
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|     ((HierarchyBoundsListener) a).ancestorResized(e);
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|     ((HierarchyBoundsListener) b).ancestorResized(e);
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|   }
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|   
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|   public void hierarchyChanged(HierarchyEvent e) 
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|   {
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|     ((HierarchyListener) a).hierarchyChanged(e);
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|     ((HierarchyListener) b).hierarchyChanged(e);
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|   }
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| 
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|   public void caretPositionChanged(InputMethodEvent e)
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|   {
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|     ((InputMethodListener) a).caretPositionChanged(e);
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|     ((InputMethodListener) b).caretPositionChanged(e);
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|   }
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| 
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|   public void inputMethodTextChanged(InputMethodEvent e) 
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|   {
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|     ((InputMethodListener) a).inputMethodTextChanged(e);
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|     ((InputMethodListener) b).inputMethodTextChanged(e);
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|   }
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| 
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|   public void itemStateChanged(ItemEvent e) 
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|   {
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|     ((ItemListener) a).itemStateChanged(e);
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|     ((ItemListener) b).itemStateChanged(e);
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|   }  
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| 
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|   public void keyPressed(KeyEvent e)
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|   {
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|     ((KeyListener) a).keyPressed(e);
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|     ((KeyListener) b).keyPressed(e);
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|   }
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|     
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|   public void keyReleased(KeyEvent e) 
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|   {
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|     ((KeyListener) a).keyReleased(e);
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|     ((KeyListener) b).keyReleased(e);
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|   }
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|   
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|   public void keyTyped(KeyEvent e) 
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|   {
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|     ((KeyListener) a).keyTyped(e);
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|     ((KeyListener) b).keyTyped(e);
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|   }
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|   
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|   public void mouseClicked(MouseEvent e) 
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|   {
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|     ((MouseListener) a).mouseClicked(e);
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|     ((MouseListener) b).mouseClicked(e);
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|   }
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|   
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|   
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|   public void mouseEntered(MouseEvent e) 
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|   {
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|     ((MouseListener) a).mouseEntered(e);
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|     ((MouseListener) b).mouseEntered(e);
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|   }
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|   
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|   public void mouseExited(MouseEvent e) 
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|   {
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|     ((MouseListener) a).mouseExited(e);
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|     ((MouseListener) b).mouseExited(e);
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|   }
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| 
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|   public void mousePressed(MouseEvent e) 
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|   {
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|     ((MouseListener) a).mousePressed(e);
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|     ((MouseListener) b).mousePressed(e);
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|   }
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|   
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|   public void mouseReleased(MouseEvent e) 
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|   {
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|     ((MouseListener) a).mouseReleased(e);
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|     ((MouseListener) b).mouseReleased(e);
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|   }
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|   
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|   public void mouseDragged(MouseEvent e) 
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|   {
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|     ((MouseMotionListener) a).mouseDragged(e);
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|     ((MouseMotionListener) b).mouseDragged(e);
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|   }
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| 
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|   public void mouseMoved(MouseEvent e) 
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|   {
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|     ((MouseMotionListener) a).mouseMoved(e);
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|     ((MouseMotionListener) b).mouseMoved(e);
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|   }
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|     
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|   public void textValueChanged(TextEvent e) 
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|   {
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|     ((TextListener) a).textValueChanged(e);
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|     ((TextListener) b).textValueChanged(e);
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|   }
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|   
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|   public void windowActivated(WindowEvent e) 
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|   {
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|     ((WindowListener) a).windowActivated(e);
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|     ((WindowListener) b).windowActivated(e);
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|   }
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|   
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|   public void windowClosed(WindowEvent e) 
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|   {
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|     ((WindowListener) a).windowClosed(e);
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|     ((WindowListener) b).windowClosed(e);
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|   }
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|   
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|   public void windowClosing(WindowEvent e) 
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|   {
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|     ((WindowListener) a).windowClosing(e);
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|     ((WindowListener) b).windowClosing(e);
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|   }
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|   
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|   public void windowDeactivated(WindowEvent e) 
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|   {
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|     ((WindowListener) a).windowDeactivated(e);
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|     ((WindowListener) b).windowDeactivated(e);
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|   }
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|   
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|   public void windowDeiconified(WindowEvent e) 
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|   {
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|     ((WindowListener) a).windowDeiconified(e);
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|     ((WindowListener) b).windowDeiconified(e);
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|   }
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|   
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|   public void windowIconified(WindowEvent e) 
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|   {
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|     ((WindowListener) a).windowIconified(e);
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|     ((WindowListener) b).windowIconified(e);
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|   }
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|   
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|   public void windowOpened(WindowEvent e) 
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|   {
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|     ((WindowListener) a).windowOpened(e);
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|     ((WindowListener) b).windowOpened(e);
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|   }
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|   
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|   protected static void save(ObjectOutputStream s, String k, EventListener l) 
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|   {
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|     // FIXME
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|   }
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| 
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|   protected void saveInternal(ObjectOutputStream s, String k)
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|   {
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|     // FIXME
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|   }
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| 
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| }
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