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/*******************************************************************************
* Copyright (c) 2000, 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.events;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.internal.SWTEventObject;
/**
* This is the super class for all typed event classes provided
* by SWT. Typed events contain particular information which is
* applicable to the event occurrence.
*
* @see org.eclipse.swt.widgets.Event
* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
*/
public class TypedEvent extends SWTEventObject {
/**
* the display where the event occurred
*
* @since 2.0
*/
public Display display;
/**
* the widget that issued the event
*/
public Widget widget;
/**
* the time that the event occurred.
*
* NOTE: This field is an unsigned integer and should
* be AND'ed with 0xFFFFFFFFL so that it can be treated
* as a signed long.
*/
public int time;
/**
* a field for application use
*/
public Object data;
static final long serialVersionUID = 3257285846578377524L;
/**
* Constructs a new instance of this class.
*
* @param object the object that fired the event
*/
public TypedEvent(Object object) {
super(object);
}
/**
* Constructs a new instance of this class based on the
* information in the argument.
*
* @param e the low level event to initialize the receiver with
*/
public TypedEvent(Event e) {
super(e.widget);
this.display = e.display;
this.widget = e.widget;
this.time = e.time;
this.data = e.data;
}
/**
* Returns the name of the event. This is the name of
* the class without the package name.
*
* @return the name of the event
*/
String getName () {
String string = getClass ().getName ();
int index = string.lastIndexOf ('.');
if (index == -1) return string;
return string.substring (index + 1, string.length ());
}
/**
* Returns a string containing a concise, human-readable
* description of the receiver.
*
* @return a string representation of the event
*/
public String toString() {
return getName ()
+ "{" + widget
+ " time=" + time
+ " data=" + data
+ "}";
}
}
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