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464 lines
12 KiB
Java
464 lines
12 KiB
Java
/* Copyright (C) 2000 Free Software Foundation
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This file is part of libgcj.
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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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package java.awt;
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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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/* 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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* 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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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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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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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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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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/* 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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// 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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// oldl was not found.
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return this;
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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