//
// WidgetEvent.java
//

/*
VisAD system for interactive analysis and visualization of numerical
data.  Copyright (C) 1996 - 2017 Bill Hibbard, Curtis Rueden, Tom
Rink, Dave Glowacki, Steve Emmerson, Tom Whittaker, Don Murray, and
Tommy Jasmin.

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 version.

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 visad.browser;

import java.awt.Event;

/**
 * WidgetEvent represents an Event regarding any of the various browser
 * Widgets. They are sourced by Widget objects and received by
 * WidgetListener objects.
 */
public class WidgetEvent extends Event {

  /**
   * Source of event.
   */
  private Widget widget;

  /**
   * Constructs a new WidgetEvent object.
   *
   * @param w  widget that sends the event
   */
  public WidgetEvent(Widget w) {
    // don't pass widget as the source, since source is transient inside Event
    super(null, 0, null);
    widget = w;
  }

  /**
   * Gets the Widget that sent this WidgetEvent.
   *
   * @return Widget object source.
   */
  public Widget getWidget() {
    return widget;
  }

}