Java example source code file (CaretEvent.java)

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Java - Java tags/keywords

caretevent, eventobject, util

The CaretEvent.java Java example source code

/*
 * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package javax.swing.event;

import java.util.EventObject;


/**
 * CaretEvent is used to notify interested parties that
 * the text caret has changed in the event source.
 * <p>
 * <strong>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 applications running
 * the same version of Swing.  As of 1.4, support for long term storage
 * of all JavaBeans™
 * has been added to the <code>java.beans package.
 * Please see {@link java.beans.XMLEncoder}.
 *
 * @author  Timothy Prinzing
 */
public abstract class CaretEvent extends EventObject {

    /**
     * Creates a new CaretEvent object.
     *
     * @param source the object responsible for the event
     */
    public CaretEvent(Object source) {
        super(source);
    }

    /**
     * Fetches the location of the caret.
     *
     * @return the dot >= 0
     */
    public abstract int getDot();

    /**
     * Fetches the location of other end of a logical
     * selection.  If there is no selection, this
     * will be the same as dot.
     *
     * @return the mark >= 0
     */
    public abstract int getMark();
}