/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    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
 *    Lesser General Public License for more details.
 */

package org.geotools.swt.control;

import org.eclipse.swt.widgets.Control;

/**
 * An event published when the value of a control derived from {@code JValueField}
 * changes.
 *
 * @see JValueField
 * @see ValueChangedListener
 *
 * @author Michael Bedward
 * @author Andrea Antonello (www.hydrologis.com)
 * @since 2.7
 *
 *
 * @source $URL: http://svn.osgeo.org/geotools/trunk/modules/unsupported/swt/src/main/java/org/geotools/swt/control/ValueChangedEvent.java $
 */
public class ValueChangedEvent<T> {

    private Control source;
    private T newValue;

    /**
     * Create a value changed event.
     * 
     * @param source the control holding the value.
     * @param newValue the updated value.
     */
    public ValueChangedEvent( Control source, T newValue ) {
        this.newValue = newValue;
        this.source = source;
    }

    /**
     * Get the control that invoked this event.
     *
     * @return the invoking control.
     */
    public Control getSource() {
        return source;
    }

    /**
     * Get the updated value.
     *
     * @return the updated value.
     */
    public T getValue() {
        return newValue;
    }
}