MenuComponent.java: Merged with Classpath.
* 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
Tom Tromey
+425
-173
@@ -1,195 +1,447 @@
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||||
/* Copyright (C) 1999, 2000, 2001 Free Software Foundation
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||||
/* MenuItem.java -- An item in a menu
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||||
Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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||||
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||||
This file is part of libgcj.
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||||
This file is part of GNU Classpath.
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||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
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||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
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||||
|
||||
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.
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||||
|
||||
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. */
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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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import java.awt.event.*;
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import java.util.EventListener;
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import java.awt.peer.MenuItemPeer;
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import java.awt.peer.MenuComponentPeer;
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||||
import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.util.EventListener;
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||||
public class MenuItem extends MenuComponent
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/**
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||||
* This class represents an item in a menu.
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*
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* @author Aaron M. Renn (arenn@urbanophile.com)
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||||
*/
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||||
public class MenuItem extends MenuComponent implements java.io.Serializable
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||||
{
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||||
// Fields from the serialization spec. Decalare others "transient".
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boolean enabled;
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String label;
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||||
String actionCommand;
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||||
long eventMask;
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||||
MenuShortcut shortcut;
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||||
int menuItemSerializedDataVersion;
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||||
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transient ActionListener actionListener;
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||||
// FIXME: The enabled event mask is not used at this time.
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||||
public MenuItem ()
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||||
{
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||||
this.label = "";
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||||
}
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||||
/*
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||||
* Static Variables
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||||
*/
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||||
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||||
public MenuItem (String label)
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||||
{
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this.label = label;
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||||
}
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||||
// Serialization Constant
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||||
private static final long serialVersionUID = -21757335363267194L;
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||||
public MenuItem (String label, MenuShortcut shortcut)
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||||
{
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||||
this.label = label;
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||||
this.shortcut = shortcut;
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||||
}
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||||
/*************************************************************************/
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public String getLabel()
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||||
{
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return label;
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||||
}
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||||
/*
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||||
* Instance Variables
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||||
*/
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||||
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||||
public synchronized void setLabel(String label)
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||||
{
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||||
this.label = label;
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||||
if (peer != null)
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||||
{
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||||
MenuItemPeer mp = (MenuItemPeer) peer;
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mp.setLabel (label);
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||||
}
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||||
}
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||||
/**
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||||
* @serial The name of the action command generated by this item.
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||||
*/
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||||
private String actionCommand;
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||||
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||||
public boolean isEnabled()
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||||
{
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||||
return enabled;
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||||
}
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||||
/**
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||||
* @serial Indicates whether or not this menu item is enabled.
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||||
*/
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||||
private boolean enabled;
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||||
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||||
public synchronized void setEnabled(boolean b)
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||||
{
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||||
// The JCL says this method is ignored if the enabled state does
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||||
// not change. I take that to mean that the peer is not notified
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||||
// in this case.
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||||
if (this.enabled != b)
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||||
{
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||||
this.enabled = b;
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||||
if (peer != null)
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||||
{
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||||
MenuItemPeer mp = (MenuItemPeer) peer;
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||||
mp.setEnabled (b);
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||||
}
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||||
}
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||||
}
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||||
/**
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||||
* @serial The mask of events that are enabled for this menu item.
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||||
*/
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||||
private long eventMask;
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||||
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||||
/** @deprecated Use setEnabled() instead. */
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||||
public void enable()
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||||
{
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||||
setEnabled(true);
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||||
}
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||||
/**
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||||
* @serial This menu item's label
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||||
*/
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||||
private String label;
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||||
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||||
/** @deprecated Use setEnabled() instead. */
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||||
public void enable(boolean b)
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||||
{
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||||
setEnabled(b);
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||||
}
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||||
/**
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||||
* @serial The shortcut for this menu item, if any
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||||
*/
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||||
private MenuShortcut shortcut;
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||||
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||||
/** @deprecated Use setEnabled() instead. */
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||||
public void disable()
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||||
{
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||||
setEnabled(false);
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||||
}
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||||
// The list of action listeners for this menu item.
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||||
private transient ActionListener action_listeners;
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||||
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||||
public MenuShortcut getShortcut()
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||||
{
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||||
return shortcut;
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||||
}
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||||
/*************************************************************************/
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||||
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||||
public void setShortcut(MenuShortcut s)
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||||
{
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||||
this.shortcut = s;
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||||
}
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||||
/*
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||||
* Constructors
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||||
*/
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||||
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||||
public void deleteShortcut()
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||||
{
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||||
setShortcut(null);
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||||
}
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||||
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||||
protected final void enableEvents(long eventsToEnable)
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||||
{
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eventMask |= eventsToEnable;
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||||
// TODO: see comment in Component.enableEvents().
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}
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||||
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||||
protected final void disableEvents(long eventsToDisable)
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||||
{
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||||
eventMask &= ~eventsToDisable;
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||||
}
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||||
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||||
public void setActionCommand(String command)
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||||
{
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||||
this.actionCommand = command;
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}
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||||
public String getActionCommand()
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||||
{
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||||
return actionCommand;
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||||
}
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||||
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||||
public synchronized void addActionListener(ActionListener l)
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||||
{
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||||
actionListener = AWTEventMulticaster.add(actionListener, l);
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||||
if (actionListener != null)
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||||
enableEvents(AWTEvent.ACTION_EVENT_MASK);
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||||
}
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||||
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||||
public synchronized void removeActionListener(ActionListener l)
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||||
{
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||||
actionListener = AWTEventMulticaster.remove(actionListener, l);
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||||
}
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||||
|
||||
public void addNotify ()
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||||
{
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||||
if (peer != null)
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||||
{
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||||
// This choice of toolkit seems unsatisfying, but I'm not sure
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||||
// what else to do.
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peer = Toolkit.getDefaultToolkit ().createMenuItem (this);
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}
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||||
}
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||||
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||||
/** Returns all registered EventListers of the given listenerType.
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||||
* listenerType must be a subclass of EventListener, or a
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||||
* ClassClassException is thrown.
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||||
* @since 1.3
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||||
*/
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||||
public EventListener[] getListeners(Class listenerType)
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||||
{
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||||
if (listenerType == ActionListener.class)
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return Component.getListenersImpl(listenerType, actionListener);
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||||
else
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||||
return Component.getListenersImpl(listenerType, null);
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||||
}
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||||
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||||
void dispatchEventImpl(AWTEvent e)
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||||
{
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||||
if (e.id <= ActionEvent.ACTION_LAST
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&& e.id >= ActionEvent.ACTION_FIRST
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||||
&& (actionListener != null
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||||
|| (eventMask & AWTEvent.ACTION_EVENT_MASK) != 0))
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processEvent(e);
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||||
}
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||||
|
||||
protected void processEvent(AWTEvent e)
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||||
{
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||||
if (e instanceof ActionEvent)
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||||
processActionEvent((ActionEvent) e);
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||||
}
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||||
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||||
protected void processActionEvent(ActionEvent e)
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||||
{
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||||
if (actionListener != null)
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actionListener.actionPerformed(e);
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}
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||||
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public String paramString()
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||||
{
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return name + ",label=" + label;
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}
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||||
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||||
// Accessibility API not yet implemented.
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// public AccessibleContext getAccessibleContext()
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||||
/**
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||||
* Initializes a new instance of <code>MenuItem</code> with no label
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* and no shortcut.
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*/
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public
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MenuItem()
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{
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||||
}
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||||
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||||
/*************************************************************************/
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||||
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||||
/**
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* Initializes a new instance of <code>MenuItem</code> with the specified
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* label and no shortcut.
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*
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* @param label The label for this menu item.
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||||
*/
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public
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MenuItem(String label)
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{
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this.label = label;
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||||
}
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||||
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||||
/*************************************************************************/
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||||
|
||||
/**
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* Initializes a new instance of <code>MenuItem</code> with the specified
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* label and shortcut.
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||||
*
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* @param label The label for this menu item.
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* @param shortcut The shortcut for this menu item.
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*/
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public
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MenuItem(String label, MenuShortcut shortcut)
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||||
{
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||||
this.label = label;
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||||
this.shortcut = shortcut;
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||||
}
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||||
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||||
/*************************************************************************/
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||||
|
||||
/*
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||||
* Instance Methods
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||||
*/
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||||
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||||
/**
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* Returns the label for this menu item, which may be <code>null</code>.
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||||
*
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* @return The label for this menu item.
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||||
*/
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||||
public String
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getLabel()
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{
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return(label);
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}
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||||
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||||
/*************************************************************************/
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||||
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||||
/**
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||||
* This method sets the label for this menu to the specified value.
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*
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* @param label The new label for this menu item.
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*/
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public synchronized void
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||||
setLabel(String label)
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{
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this.label = label;
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if (peer != null)
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||||
{
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||||
MenuItemPeer mp = (MenuItemPeer) peer;
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||||
mp.setLabel (label);
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||||
}
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}
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/*************************************************************************/
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||||
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||||
/**
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||||
* Tests whether or not this menu item is enabled.
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*
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||||
* @return <code>true</code> if this menu item is enabled, <code>false</code>
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* otherwise.
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||||
*/
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||||
public boolean
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||||
isEnabled()
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||||
{
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||||
return(enabled);
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||||
}
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||||
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||||
/*************************************************************************/
|
||||
|
||||
/**
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||||
* Sets the enabled status of this menu item.
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*
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* @param enabled <code>true</code> to enable this menu item,
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* <code>false</code> otherwise.
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||||
*/
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||||
public synchronized void
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||||
setEnabled(boolean enabled)
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||||
{
|
||||
if (enabled == this.enabled)
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||||
return;
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||||
|
||||
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
|
||||
|
||||
Reference in New Issue
Block a user