/*
 * Copyright (C) 2006 Jeremy Booth (jeremy@newdawnsoftware.com)
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this 
 * list of conditions and the following disclaimer. Redistributions in binary 
 * form must reproduce the above copyright notice, this list of conditions and 
 * the following disclaimer in the documentation and/or other materials provided
 * with the distribution. 
 * The name of the author may not be used to endorse or promote products derived
 * from this software without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
 */
package net.java.games.input;

public class WinTabButtonComponent extends WinTabComponent {

	private int index;

	protected WinTabButtonComponent(WinTabContext context, int parentDevice, String name, Identifier id, int index) {
		super(context, parentDevice, name, id);
		this.index = index;
	}

	public Event processPacket(WinTabPacket packet) {
		Event newEvent = null;
		
		float newValue = ((packet.PK_BUTTONS & (int)Math.pow(2, index))>0) ? 1.0f : 0.0f; 
		if(newValue!=getPollData()) {
			lastKnownValue = newValue;
			
			//Generate an event
			newEvent = new Event();
			newEvent.set(this, newValue, packet.PK_TIME*1000);
			return newEvent;
		}
		
		return newEvent;
	}
}