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/* AWTEvent.java -- Toplevel AWT event class
Copyright (C) 1999 Free Software Foundation, Inc.
This file is part of the non-peer AWT libraries of GNU Classpath.
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published
by the Free Software Foundation, either version 2 of the License, or
(at your option) any later verion.
This library 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; if not, write to the Free Software Foundation
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA. */
package java.awt;
/**
*
*
* @author Aaron M. Renn (arenn@urbanophile.com)
*/
public abstract class AWTEvent extends java.util.EventObject
implements java.io.Serializable
{
/*
* Static Variables
*/
/**
* Mask for selecting component events.
*/
public static final int COMPONENT_EVENT_MASK = 0x001;
/**
* Mask for selecting container events.
*/
public static final int CONTAINER_EVENT_MASK = 0x002;
/**
* Mask for selecting component focus events.
*/
public static final int FOCUS_EVENT_MASK = 0x004;
/**
* Mask for selecting keyboard events.
*/
public static final int KEY_EVENT_MASK = 0x008;
/**
* Mask for mouse button events.
*/
public static final int MOUSE_EVENT_MASK = 0x010;
/**
* Mask for mouse motion events.
*/
public static final int MOUSE_MOTION_EVENT_MASK = 0x020;
/**
* Mask for window events.
*/
public static final int WINDOW_EVENT_MASK = 0x040;
/**
* Mask for action events.
*/
public static final int ACTION_EVENT_MASK = 0x080;
/**
* Mask for adjustment events.
*/
public static final int ADJUSTMENT_EVENT_MASK = 0x100;
/**
* Mask for item events.
*/
public static final int ITEM_EVENT_MASK = 0x200;
/**
* Mask for text events.
*/
public static final int TEXT_EVENT_MASK = 0x400;
/**
* This is the highest number for event ids that are reserved for use by
* the AWT system itself.
*/
public static final int RESERVED_ID_MAX = 1999;
/*************************************************************************/
/*
* Instance Variables
*/
/**
* @serial The identifier number of this event.
*/
protected int id;
/**
* @serial Indicates whether or not this event has been consumed.
*/
protected boolean consumed;
// Used by EventQueue
AWTEvent next;
/*************************************************************************/
/*
* Constructors
*/
/**
* Initializes a new instance of <code>AWTEvent</code> from the
* specified Java 1.0 event object.
*
* @param event The Java 1.0 event to initialize from.
*
*
* Removed this method because we no longer support Java 1.0
*
public
AWTEvent(Event event)
{
this(event.target, event.id);
}
*/
/*************************************************************************/
/**
* Initializes a new instance of <code>AWTEvent</code> with the specified
* source and id.
*
* @param source The object that caused the event.
* @param id The event id.
*/
public
AWTEvent(Object source, int id)
{
super(source);
this.id = id;
}
/*************************************************************************/
/*
* Instance Methods
*/
/**
* Returns the id number of this event.
*
* @return The id number of this event.
*/
public int
getID()
{
return(id);
}
/*************************************************************************/
/**
* Tests whether not not this event has been consumed. A consumed event
* is not processed in the default manner.
*
* @return <code>true</code> if this event has been consumed,
* <code>false</code> otherwise.
*/
public boolean
isConsumed()
{
return(consumed);
}
/*************************************************************************/
/**
* Consumes this event so that it will not be processed in the default
* manner.
*/
protected void
consume()
{
consumed = true;
}
/*************************************************************************/
/**
* Returns a string representation of this event.
*
* @return A string representation of this event.
*/
public String
paramString()
{
return(toString());
}
/*************************************************************************/
/**
* Returns a string representation of this event.
*
* @return A string representation of this event.
*/
public String
toString()
{
return(getClass().getName() + "(id=" + getID() + ")");
}
} // class AWTEvent
|
