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MenuComponent.java: Merged with Classpath.

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* java/awt/MenuComponent.java: Merged with Classpath.
	* java/awt/MenuItem.java: Merged with Classpath.
	* java/awt/Button.java: Merged with Classpath.

From-SVN: r48975
This commit is contained in:
Tom Tromey 2002-01-18 01:01:58 +00:00 • committed by Tom Tromey
parent ccc643e212
commit 10185e3886
4 changed files with 982 additions and 373 deletions
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4
libjava/ChangeLog
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@ -1,5 +1,9 @@
2002-01-17 Tom Tromey <tromey@redhat.com>
* java/awt/MenuComponent.java: Merged with Classpath.
* java/awt/MenuItem.java: Merged with Classpath.
* java/awt/Button.java: Merged with Classpath.
* java/awt/ActiveEvent.java: Updated copyright.
* java/awt/AWTError.java: Replaced with Classpath version.

367
libjava/java/awt/Button.java
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@ -1,116 +1,277 @@
/* Copyright (C) 2000 Free Software Foundation
/* Button.java -- AWT button widget
Copyright (C) 1999, 2002 Free Software Foundation, Inc.
This file is part of libjava.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA.
As a special exception, if you link this library with other files to
produce an executable, this library does not by itself cause the
resulting executable to be covered by the GNU General Public License.
This exception does not however invalidate any other reasons why the
executable file might be covered by the GNU General Public License. */
This software is copyrighted work licensed under the terms of the
Libjava License. Please consult the file "LIBJAVA_LICENSE" for
details. */
package java.awt;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.peer.ButtonPeer;
import java.awt.peer.ComponentPeer;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.EventListener;
/**
* @author Tom Tromey <tromey@cygnus.com>
* @date July 30, 2000
* This class provides a button widget for the AWT.
*
* @author Aaron M. Renn (arenn@urbanophile.com)
* @author Tom Tromey <tromey@cygnus.com>
*/
public class Button extends Component implements java.io.Serializable
{
/*
* Static Variables
*/
public class Button extends Component
// FIXME: Need readObject/writeObject for serialization
// Serialization version constant
private static final long serialVersionUID = -8774683716313001058L;
/*************************************************************************/
/*
* Instance Variables
*/
/**
* @serial The action command name for this button.
*/
private String actionCommand;
/**
* @serial The label for this button.
*/
private String label;
// List of ActionListeners for this class.
private transient ActionListener action_listeners;
/*************************************************************************/
/*
* Constructors
*/
/**
* Initializes a new instance of <code>Button</code> with no label.
*/
public
Button()
{
public Button ()
{
this (null);
}
public Button (String label)
{
this.label = label;
}
public void addActionListener (ActionListener l)
{
actionListener = AWTEventMulticaster.add (actionListener, l);
}
public void addNotify ()
{
if (peer == null)
peer = getToolkit ().createButton (this);
super.addNotify();
}
public String getActionCommand ()
{
return actionCommand;
}
public String getLabel ()
{
return label;
}
protected String paramString ()
{
return "Button[" + label + "]";
}
void dispatchEventImpl(AWTEvent e)
{
super.dispatchEventImpl(e);
if (e.id <= ActionEvent.ACTION_LAST
&& e.id >= ActionEvent.ACTION_FIRST
&& (actionListener != null
|| (eventMask & AWTEvent.ACTION_EVENT_MASK) != 0))
processEvent(e);
}
protected void processActionEvent (ActionEvent e)
{
if (actionListener != null)
actionListener.actionPerformed (e);
}
protected void processEvent (AWTEvent e)
{
if (e instanceof ActionEvent)
processActionEvent ((ActionEvent) e);
else
super.processEvent (e);
}
public void removeActionListener (ActionListener l)
{
actionListener = AWTEventMulticaster.remove (actionListener, l);
}
public EventListener[] getListeners(Class listenerType)
{
if (listenerType == ActionListener.class)
return getListenersImpl(listenerType, actionListener);
return super.getListeners(listenerType);
}
public void setActionCommand (String command)
{
this.actionCommand = (command == null) ? label : command;
}
public void setLabel (String label)
{
this.label = label;
if (peer != null)
{
ButtonPeer bp = (ButtonPeer) peer;
bp.setLabel (label);
}
}
String label;
String actionCommand;
transient ActionListener actionListener;
this(null);
}
/*************************************************************************/
/**
* Initializes a new instance of <code>Button</code> with the specified
* label. The action command name is also initialized to this value.
*
* @param label The label to display on the button.
*/
public
Button(String label)
{
this.label = label;
actionCommand = label;
}
/*************************************************************************/
/*
* Instance Variables
*/
/**
* Returns the label for this button.
*
* @return The label for this button.
*/
public String
getLabel()
{
return(label);
}
/*************************************************************************/
/**
* Sets the label for this button to the specified value.
*
* @param label The new label for this button.
*/
public synchronized void
setLabel(String label)
{
this.label = label;
if (peer != null)
{
ButtonPeer bp = (ButtonPeer) peer;
bp.setLabel (label);
}
}
/*************************************************************************/
/**
* Returns the action command name for this button.
*
* @return The action command name for this button.
*/
public String
getActionCommand()
{
return(actionCommand);
}
/*************************************************************************/
/**
* Sets the action command name for this button to the specified value.
*
* @param actionCommand The new action command name.
*/
public void
setActionCommand(String actionCommand)
{
this.actionCommand = actionCommand == null ? label : actionCommand;
}
/*************************************************************************/
/**
* Adds a new entry to the list of listeners that will receive
* action events from this button.
*
* @param listener The listener to add.
*/
public synchronized void
addActionListener(ActionListener listener)
{
action_listeners = AWTEventMulticaster.add(action_listeners, listener);
}
/*************************************************************************/
/**
* Removes the specified listener from the list of listeners that will
* receive action events from this button.
*
* @param listener The listener to remove.
*/
public synchronized void
removeActionListener(ActionListener listener)
{
action_listeners = AWTEventMulticaster.remove(action_listeners, listener);
}
public EventListener[]
getListeners(Class listenerType)
{
if (listenerType == ActionListener.class)
return getListenersImpl(listenerType, action_listeners);
return super.getListeners(listenerType);
}
/*************************************************************************/
/**
* Notifies this button that it should create its native peer object.
*/
public void
addNotify()
{
if (peer == null)
peer = getToolkit ().createButton (this);
super.addNotify();
}
/*************************************************************************/
/**
* Processes an event for this button. If the specified event is an
* instance of <code>ActionEvent</code>, then the
* <code>processActionEvent()</code> method is called to dispatch it
* to any registered listeners. Otherwise, the superclass method
* will be invoked. Note that this method will not be called at all
* unless <code>ActionEvent</code>'s are enabled. This will be done
* implicitly if any listeners are added.
*
* @param event The event to process.
*/
protected void
processEvent(AWTEvent event)
{
if (event instanceof ActionEvent)
processActionEvent((ActionEvent)event);
else
super.processEvent(event);
}
/*************************************************************************/
/**
* This method dispatches an action event for this button to any
* registered listeners.
*
* @param event The event to process.
*/
protected void
processActionEvent(ActionEvent event)
{
if (action_listeners != null)
action_listeners.actionPerformed(event);
}
void
dispatchEventImpl(AWTEvent e)
{
super.dispatchEventImpl(e);
if (e.id <= ActionEvent.ACTION_LAST
&& e.id >= ActionEvent.ACTION_FIRST
&& (action_listeners != null
|| (eventMask & AWTEvent.ACTION_EVENT_MASK) != 0))
processEvent(e);
}
/*************************************************************************/
/**
* Returns a debugging string for this button.
*
* @return A debugging string for this button.
*/
protected String
paramString()
{
return(getClass().getName() + "(label=" + getLabel() + ",actionCommand=" +
getActionCommand() + ")");
}
} // class Button

386
libjava/java/awt/MenuComponent.java
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@ -1,120 +1,312 @@
/* Copyright (C) 1999, 2000 Free Software Foundation
/* MenuComponent.java -- Superclass of all AWT menu components
Copyright (C) 1999, 2000, 2002 Free Software Foundation, Inc.
This file is part of libgcj.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA.
As a special exception, if you link this library with other files to
produce an executable, this library does not by itself cause the
resulting executable to be covered by the GNU General Public License.
This exception does not however invalidate any other reasons why the
executable file might be covered by the GNU General Public License. */
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
package java.awt;
/* Status: partially complete, untested. */
import java.awt.peer.MenuComponentPeer;
// FIXME: Java 1.0 event model unimplemented
/**
* This is the superclass of all non-menu AWT widgets.
*
* @author Aaron M. Renn (arenn@urbanophile.com)
*/
public abstract class MenuComponent implements java.io.Serializable
{
// Fields from the serialization spec. Decalare others "transient".
Font font;
String name;
boolean nameExplicitlySet;
boolean newEventsOnly;
//AccessibleContext accessibleContext;
transient MenuContainer parent;
transient java.awt.peer.MenuComponentPeer peer;
public MenuComponent()
{
}
/*
* Static Variables
*/
public String getName()
{
if (name == null && !nameExplicitlySet)
name = generateName();
return name;
}
/** Subclasses should override this to generate unique names like
* "menuitem0".
*/
String generateName()
{
// MenuComponent is abstract.
return null;
}
// Serialization Constant
private static final long serialVersionUID = -4536902356223894379L;
public void setName(String name)
{
nameExplicitlySet = true;
this.name = name;
}
/*************************************************************************/
public MenuContainer getParent()
{
return parent;
}
/*
* Instance Variables
*/
/** @deprecated Don't use this. */
public java.awt.peer.MenuComponentPeer getPeer()
{
return peer;
}
// FIXME: missing serialized fields `nameExplicitlySet',
// `newEventsOnly', and `accessibleContext'.
public Font getFont()
{
return font;
}
// The font for this component
private Font font;
public void setFont(Font f)
{
this.font = f;
}
// The name of the component
private String name;
public void removeNotify()
{
if (peer != null)
peer.dispose ();
peer = null;
}
// The parent of this component
transient MenuContainer parent;
/** @deprecated Replaced by dispatchEvent(AWTEvent) */
public boolean postEvent(Event evt)
{
return false;
}
// The native peer for this componet
transient MenuComponentPeer peer;
public final void dispatchEvent(AWTEvent e)
{
// FIXME
dispatchEventImpl(e);
}
void dispatchEventImpl(AWTEvent e)
{
// This is overridden by subclasses that support events.
}
// The synchronization locking object for this component
private transient Object tree_lock = this;
protected void processEvent(AWTEvent e)
{
// Nothing to do here? This is be overridden by subclasses that
// support events.
}
// The toolkit for this object
private static transient Toolkit toolkit = Toolkit.getDefaultToolkit();
protected String paramString()
{
return name;
}
/*************************************************************************/
public String toString()
{
return this.getClass().getName() + "[" + paramString() + "]";
}
/*
* Constructors
*/
protected final Object getTreeLock()
{
// FIXME: figure out how the tree lock works.
return null;
}
// Accessibility API not yet implemented.
// public AccessibleContext getAccessibleContext()
/**
* Default constructor for subclasses.
*/
protected
MenuComponent()
{
}
/*************************************************************************/
/*
* Instance Methods
*/
/**
* Returns the font in use for this component.
*
* @return The font for this component.
*/
public Font
getFont()
{
return(font);
}
/*************************************************************************/
/**
* Sets the font for this component to the specified font.
*
* @param font The new font for this component.
*/
public void
setFont(Font font)
{
this.font = font;
}
/*************************************************************************/
/**
* Returns the name of this component.
*
* @return The name of this component.
*/
public String
getName()
{
return(name);
}
/*************************************************************************/
/**
* Sets the name of this component to the specified name.
*
* @param name The new name of this component.
*/
public void
setName(String name)
{
this.name = name;
}
/*************************************************************************/
/**
* Returns the parent of this component.
*
* @return The parent of this component.
*/
public MenuContainer
getParent()
{
return(parent);
}
/*************************************************************************/
// Sets the parent of this component.
final void
setParent(MenuContainer parent)
{
this.parent = parent;
}
/*************************************************************************/
/**
* Returns the native windowing system peer for this component.
*
* @return The peer for this component.
*/
public MenuComponentPeer
getPeer()
{
return(peer);
}
/*************************************************************************/
// Sets the peer for this component.
final void
setPeer(MenuComponentPeer peer)
{
this.peer = peer;
}
/*************************************************************************/
/**
* Destroys this component's native peer
*/
public void
removeNotify()
{
if (peer != null)
peer.dispose();
peer = null;
}
/*************************************************************************/
/**
* Returns the toolkit in use for this component.
*
* @return The toolkit for this component.
*/
final Toolkit
getToolkit()
{
return(toolkit);
}
/*************************************************************************/
/**
* Returns the object used for synchronization locks on this component
* when performing tree and layout functions.
*
* @return The synchronization lock for this component.
*/
public final Object
getTreeLock()
{
return(tree_lock);
}
/*************************************************************************/
// The sync lock object for this component.
final void
setTreeLock(Object tree_lock)
{
this.tree_lock = tree_lock;
}
/*************************************************************************/
/**
* AWT 1.0 event dispatcher.
*
* @deprecated Deprecated in favor of <code>dispatchEvent()</code>.
*/
public boolean
postEvent(Event event)
{
return(false);
}
/*************************************************************************/
/**
* Sends this event to this component or a subcomponent for processing.
*
* @param event The event to dispatch
*/
public final void
dispatchEvent(AWTEvent event)
{
// See comment in Component.dispatchEvent().
dispatchEventImpl(event);
}
void
dispatchEventImpl(AWTEvent e)
{
// This is overridden by subclasses that support events.
}
/*************************************************************************/
/**
* Processes the specified event. In this class, this method simply
* calls one of the more specific event handlers.
*
* @param event The event to process.
*/
protected void
processEvent(AWTEvent event)
{
}
/*************************************************************************/
/**
* Returns a string representation of this component.
*
* @return A string representation of this component
*/
public String
toString()
{
return(getClass().getName() + "(" + getName() + ")");
}
/*************************************************************************/
/**
* Returns a debugging string for this component
*/
protected String
paramString()
{
return(toString());
}
// Accessibility API not yet implemented.
// public AccessibleContext getAccessibleContext()
} // class Component

598
libjava/java/awt/MenuItem.java
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@ -1,195 +1,447 @@
/* Copyright (C) 1999, 2000, 2001 Free Software Foundation
/* MenuItem.java -- An item in a menu
Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of libgcj.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA.
As a special exception, if you link this library with other files to
produce an executable, this library does not by itself cause the
resulting executable to be covered by the GNU General Public License.
This exception does not however invalidate any other reasons why the
executable file might be covered by the GNU General Public License. */
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
package java.awt;
import java.awt.event.*;
import java.util.EventListener;
import java.awt.peer.MenuItemPeer;
import java.awt.peer.MenuComponentPeer;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.EventListener;
public class MenuItem extends MenuComponent
/**
* This class represents an item in a menu.
*
* @author Aaron M. Renn (arenn@urbanophile.com)
*/
public class MenuItem extends MenuComponent implements java.io.Serializable
{
// Fields from the serialization spec. Decalare others "transient".
boolean enabled;
String label;
String actionCommand;
long eventMask;
MenuShortcut shortcut;
int menuItemSerializedDataVersion;
transient ActionListener actionListener;
// FIXME: The enabled event mask is not used at this time.
public MenuItem ()
{
this.label = "";
}
/*
* Static Variables
*/
public MenuItem (String label)
{
this.label = label;
}
// Serialization Constant
private static final long serialVersionUID = -21757335363267194L;
public MenuItem (String label, MenuShortcut shortcut)
{
this.label = label;
this.shortcut = shortcut;
}
/*************************************************************************/
public String getLabel()
{
return label;
}
/*
* Instance Variables
*/
public synchronized void setLabel(String label)
{
this.label = label;
if (peer != null)
{
MenuItemPeer mp = (MenuItemPeer) peer;
mp.setLabel (label);
}
}
/**
* @serial The name of the action command generated by this item.
*/
private String actionCommand;
public boolean isEnabled()
{
return enabled;
}
/**
* @serial Indicates whether or not this menu item is enabled.
*/
private boolean enabled;
public synchronized void setEnabled(boolean b)
{
// The JCL says this method is ignored if the enabled state does
// not change. I take that to mean that the peer is not notified
// in this case.
if (this.enabled != b)
{
this.enabled = b;
if (peer != null)
{
MenuItemPeer mp = (MenuItemPeer) peer;
mp.setEnabled (b);
}
}
}
/**
* @serial The mask of events that are enabled for this menu item.
*/
private long eventMask;
/** @deprecated Use setEnabled() instead. */
public void enable()
{
setEnabled(true);
}
/**
* @serial This menu item's label
*/
private String label;
/** @deprecated Use setEnabled() instead. */
public void enable(boolean b)
{
setEnabled(b);
}
/**
* @serial The shortcut for this menu item, if any
*/
private MenuShortcut shortcut;
/** @deprecated Use setEnabled() instead. */
public void disable()
{
setEnabled(false);
}
// The list of action listeners for this menu item.
private transient ActionListener action_listeners;
public MenuShortcut getShortcut()
{
return shortcut;
}
/*************************************************************************/
public void setShortcut(MenuShortcut s)
{
this.shortcut = s;
}
/*
* Constructors
*/
public void deleteShortcut()
{
setShortcut(null);
}
protected final void enableEvents(long eventsToEnable)
{
eventMask |= eventsToEnable;
// TODO: see comment in Component.enableEvents().
}
protected final void disableEvents(long eventsToDisable)
{
eventMask &= ~eventsToDisable;
}
public void setActionCommand(String command)
{
this.actionCommand = command;
}
public String getActionCommand()
{
return actionCommand;
}
public synchronized void addActionListener(ActionListener l)
{
actionListener = AWTEventMulticaster.add(actionListener, l);
if (actionListener != null)
enableEvents(AWTEvent.ACTION_EVENT_MASK);
}
public synchronized void removeActionListener(ActionListener l)
{
actionListener = AWTEventMulticaster.remove(actionListener, l);
}
public void addNotify ()
{
if (peer != null)
{
// This choice of toolkit seems unsatisfying, but I'm not sure
// what else to do.
peer = Toolkit.getDefaultToolkit ().createMenuItem (this);
}
}
/** Returns all registered EventListers of the given listenerType.
* listenerType must be a subclass of EventListener, or a
* ClassClassException is thrown.
* @since 1.3
*/
public EventListener[] getListeners(Class listenerType)
{
if (listenerType == ActionListener.class)
return Component.getListenersImpl(listenerType, actionListener);
else
return Component.getListenersImpl(listenerType, null);
}
void dispatchEventImpl(AWTEvent e)
{
if (e.id <= ActionEvent.ACTION_LAST
&& e.id >= ActionEvent.ACTION_FIRST
&& (actionListener != null
|| (eventMask & AWTEvent.ACTION_EVENT_MASK) != 0))
processEvent(e);
}
protected void processEvent(AWTEvent e)
{
if (e instanceof ActionEvent)
processActionEvent((ActionEvent) e);
}
protected void processActionEvent(ActionEvent e)
{
if (actionListener != null)
actionListener.actionPerformed(e);
}
public String paramString()
{
return name + ",label=" + label;
}
// Accessibility API not yet implemented.
// public AccessibleContext getAccessibleContext()
/**
* Initializes a new instance of <code>MenuItem</code> with no label
* and no shortcut.
*/
public
MenuItem()
{
}
/*************************************************************************/
/**
* Initializes a new instance of <code>MenuItem</code> with the specified
* label and no shortcut.
*
* @param label The label for this menu item.
*/
public
MenuItem(String label)
{
this.label = label;
}
/*************************************************************************/
/**
* Initializes a new instance of <code>MenuItem</code> with the specified
* label and shortcut.
*
* @param label The label for this menu item.
* @param shortcut The shortcut for this menu item.
*/
public
MenuItem(String label, MenuShortcut shortcut)
{
this.label = label;
this.shortcut = shortcut;
}
/*************************************************************************/
/*
* Instance Methods
*/
/**
* Returns the label for this menu item, which may be <code>null</code>.
*
* @return The label for this menu item.
*/
public String
getLabel()
{
return(label);
}
/*************************************************************************/
/**
* This method sets the label for this menu to the specified value.
*
* @param label The new label for this menu item.
*/
public synchronized void
setLabel(String label)
{
this.label = label;
if (peer != null)
{
MenuItemPeer mp = (MenuItemPeer) peer;
mp.setLabel (label);
}
}
/*************************************************************************/
/**
* Tests whether or not this menu item is enabled.
*
* @return <code>true</code> if this menu item is enabled, <code>false</code>
* otherwise.
*/
public boolean
isEnabled()
{
return(enabled);
}
/*************************************************************************/
/**
* Sets the enabled status of this menu item.
*
* @param enabled <code>true</code> to enable this menu item,
* <code>false</code> otherwise.
*/
public synchronized void
setEnabled(boolean enabled)
{
if (enabled == this.enabled)
return;
this.enabled = enabled;
if (peer != null)
{
MenuItemPeer mp = (MenuItemPeer) peer;
mp.setEnabled (enabled);
}
}
/*************************************************************************/
/**
* Sets the enabled status of this menu item.
*
* @param enabled <code>true</code> to enable this menu item,
* <code>false</code> otherwise.
*
* @deprecated This method is deprecated in favor of <code>setEnabled()</code>.
*/
public void
enable(boolean enabled)
{
setEnabled(enabled);
}
/*************************************************************************/
/**
* Enables this menu item.
*
* @deprecated This method is deprecated in favor of <code>setEnabled()</code>.
*/
public void
enable()
{
setEnabled(true);
}
/*************************************************************************/
/**
* Disables this menu item.
*
* @deprecated This method is deprecated in favor of <code>setEnabled()</code>.
*/
public void
disable()
{
setEnabled(false);
}
/*************************************************************************/
/**
* Returns the shortcut for this menu item, which may be <code>null</code>.
*
* @return The shortcut for this menu item.
*/
public MenuShortcut
getShortcut()
{
return(shortcut);
}
/*************************************************************************/
/**
* Sets the shortcut for this menu item to the specified value. This
* must be done before the native peer is created.
*
* @param shortcut The new shortcut for this menu item.
*/
public void
setShortcut(MenuShortcut shortcut)
{
this.shortcut = shortcut;
}
/*************************************************************************/
/**
* Deletes the shortcut for this menu item if one exists. This must be
* done before the native peer is created.
*/
public void
deleteShortcut()
{
shortcut = null;
}
/*************************************************************************/
/**
* Returns the name of the action command in the action events
* generated by this menu item.
*
* @return The action command name
*/
public String
getActionCommand()
{
return(actionCommand);
}
/*************************************************************************/
/**
* Sets the name of the action command in the action events generated by
* this menu item.
*
* @param actionCommand The new action command name.
*/
public void
setActionCommand(String actionCommand)
{
this.actionCommand = actionCommand;
}
/*************************************************************************/
/**
* Enables the specified events. This is done automatically when a
* listener is added and does not normally need to be done by
* application code.
*
* @param events The events to enable, which should be the bit masks
* from <code>AWTEvent</code>.
*/
protected final void
enableEvents(long events)
{
eventMask |= events;
// TODO: see comment in Component.enableEvents().
}
/*************************************************************************/
/**
* Disables the specified events.
*
* @param events The events to enable, which should be the bit masks
* from <code>AWTEvent</code>.
*/
protected final void
disableEvents(long events)
{
eventMask &= ~events;
}
/*************************************************************************/
/**
* Creates the native peer for this object.
*/
public void
addNotify()
{
if (peer != null)
peer = getToolkit ().createMenuItem (this);
}
/*************************************************************************/
/**
* Adds the specified listener to the list of registered action listeners
* for this component.
*
* @param listener The listener to add.
*/
public synchronized void
addActionListener(ActionListener listener)
{
action_listeners = AWTEventMulticaster.add(action_listeners, listener);
enableEvents(AWTEvent.ACTION_EVENT_MASK);
}
public synchronized void
removeActionListener(ActionListener l)
{
action_listeners = AWTEventMulticaster.remove(action_listeners, l);
}
/** Returns all registered EventListers of the given listenerType.
* listenerType must be a subclass of EventListener, or a
* ClassClassException is thrown.
* @since 1.3
*/
public EventListener[]
getListeners(Class listenerType)
{
if (listenerType == ActionListener.class)
return Component.getListenersImpl(listenerType, action_listeners);
else
return Component.getListenersImpl(listenerType, null);
}
/*************************************************************************/
void
dispatchEventImpl(AWTEvent e)
{
if (e.id <= ActionEvent.ACTION_LAST
&& e.id >= ActionEvent.ACTION_FIRST
&& (action_listeners != null
|| (eventMask & AWTEvent.ACTION_EVENT_MASK) != 0))
processEvent(e);
}
/**
* Processes the specified event by calling <code>processActionEvent()</code>
* if it is an instance of <code>ActionEvent</code>.
*
* @param event The event to process.
*/
protected void
processEvent(AWTEvent event)
{
if (event instanceof ActionEvent)
processActionEvent((ActionEvent)event);
}
/*************************************************************************/
/**
* Processes the specified event by dispatching it to any registered listeners.
*
* @param event The event to process.
*/
protected void
processActionEvent(ActionEvent event)
{
if (action_listeners != null)
action_listeners.actionPerformed(event);
}
/*************************************************************************/
/**
* Returns a debugging string for this object.
*
* @return A debugging string for this object.
*/
public String
paramString()
{
return(getClass().getName() + "(label+" + label + ",enabled=" + enabled +
",actionCommand=" + actionCommand + ")");
}
// Accessibility API not yet implemented.
// public AccessibleContext getAccessibleContext()
} // class MenuItem