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Nifty GUI is a Java Library that supports the building of interactive user interfaces for games or similar applications. It utilizes OpenGL for rendering and it can be easily integrated into many rendering systems. The configuration of the GUI is stored in xml files with little supporting Java code. In short Nifty helps you to layout stuff, display it in a cool way and interact with it :)

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/**
 * Copyright 2005 Bushe Enterprises, Inc., Hopkinton, MA, USA, www.bushe.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.bushe.swing.event;

/**
 * A simple event that delivers an untyped object with a source object.
 * 
 * Usage: EventBus.publish(new ObjectEvent(this, objectOfInterest);
 *
 * @author Michael Bushe [email protected]
 */
public class ObjectEvent extends AbstractEventServiceEvent {
   private Object eventObject;

   /**
    * Constructor
    *
    * @param sourceObject the source of the event
    * @param payload the payload or eventObject of the event
    */
   public ObjectEvent(Object sourceObject, Object payload) {
      super(sourceObject);
      this.eventObject = payload;
   }

   public Object getEventObject() {
      return eventObject;
   }
}