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ListSelectionEvent.java
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1998-06-30
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/*
* @(#)ListSelectionEvent.java 1.9 98/02/02
*
* Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the confidential and proprietary information of Sun
* Microsystems, Inc. ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license agreement you entered into
* with Sun.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
* SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
* SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
* THIS SOFTWARE OR ITS DERIVATIVES.
*
*/
package com.sun.java.swing.event;
import java.util.EventObject;
import com.sun.java.swing.*;
/**
* An event that characterizes a change in the current
* selection. The change is limited to a row interval.
* ListSelectionListeners will generally query the source of
* the event for the new selected status of each potentially
* changed row.
* <p>
* Warning: serialized objects of this class will not be compatible with
* future swing releases. The current serialization support is appropriate
* for short term storage or RMI between Swing1.0 applications. It will
* not be possible to load serialized Swing1.0 objects with future releases
* of Swing. The JDK1.2 release of Swing will be the compatibility
* baseline for the serialized form of Swing objects.
*
* @version 1.9 02/02/98
* @author Hans Muller
* @author Ray Ryan
* @see ListSelectionModel
*/
public class ListSelectionEvent extends EventObject
{
private int firstIndex;
private int lastIndex;
private boolean isAdjusting;
/**
* Represents a change in selection status between firstIndex
* and lastIndex inclusive (firstIndex is less than or equal to
* lastIndex). Atleast one of the rows within the range will
* have changed, a good ListSelectionModel implementation will
* keep the range as small as possible.
*
* @param firstIndex The first index that changed.
* @param lastIndex The last index that changed, lastIndex >= firstIndex.
* @param isAdjusting An indication that this is one of rapid a series of events
*/
public ListSelectionEvent(Object source, int firstIndex, int lastIndex,
boolean isAdjusting)
{
super(source);
this.firstIndex = firstIndex;
this.lastIndex = lastIndex;
this.isAdjusting = isAdjusting;
}
/**
* @return The first row whose selection value may have changed.
*/
public int getFirstIndex() { return firstIndex; }
/**
* @return The last row whose selection value may have changed.
*/
public int getLastIndex() { return lastIndex; }
/**
* @return True if this is one of a rapid series of events
*/
public boolean getValueIsAdjusting() { return isAdjusting; }
public String toString() {
String properties =
" source=" + getSource() +
" firstIndex= " + firstIndex +
" lastIndex= " + lastIndex +
" isAdjusting= " + isAdjusting +
" ";
return getClass().getName() + "[" + properties + "]";
}
}