mirror of git://gcc.gnu.org/git/gcc.git
324 lines
7.3 KiB
Java
324 lines
7.3 KiB
Java
/* MenuComponent.java -- Superclass of all AWT menu components
|
|
Copyright (C) 1999, 2000, 2002 Free Software Foundation, Inc.
|
|
|
|
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.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
|
|
package java.awt;
|
|
|
|
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
|
|
{
|
|
|
|
/*
|
|
* Static Variables
|
|
*/
|
|
|
|
// Serialization Constant
|
|
private static final long serialVersionUID = -4536902356223894379L;
|
|
|
|
/*************************************************************************/
|
|
|
|
/*
|
|
* Instance Variables
|
|
*/
|
|
|
|
// FIXME: missing serialized fields `nameExplicitlySet',
|
|
// `newEventsOnly', and `accessibleContext'.
|
|
|
|
// The font for this component
|
|
private Font font;
|
|
|
|
// The name of the component
|
|
private String name;
|
|
|
|
// The parent of this component
|
|
transient MenuContainer parent;
|
|
|
|
// The native peer for this componet
|
|
transient MenuComponentPeer peer;
|
|
|
|
// The synchronization locking object for this component
|
|
private transient Object tree_lock = this;
|
|
|
|
// The toolkit for this object
|
|
private static transient Toolkit toolkit = Toolkit.getDefaultToolkit();
|
|
|
|
/*************************************************************************/
|
|
|
|
/*
|
|
* Constructors
|
|
*/
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
protected 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 this.getClass().getName() + "[" + paramString() + "]";
|
|
}
|
|
|
|
/*************************************************************************/
|
|
|
|
/**
|
|
* Returns a debugging string for this component
|
|
*/
|
|
protected String
|
|
paramString()
|
|
{
|
|
return "name=" + getName();
|
|
}
|
|
|
|
// Accessibility API not yet implemented.
|
|
// public AccessibleContext getAccessibleContext()
|
|
|
|
} // class Component
|