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/*
* SVG Salamander
* Copyright (c) 2004, Mark McKay
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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
* COPYRIGHT HOLDER OR CONTRIBUTORS 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.
*
* Mark McKay can be contacted at mark@kitfox.com. Salamander and other
* projects can be found at http://www.kitfox.com
*
* Created on September 28, 2004, 10:07 PM
*/
package com.kitfox.svg.app;
import java.util.*;
/**
*
* @author kitfox
*/
public class PlayerThread implements Runnable
{
HashSet listeners = new HashSet();
double curTime = 0;
double timeStep = .2;
public static final int PS_STOP = 0;
public static final int PS_PLAY_FWD = 1;
public static final int PS_PLAY_BACK = 2;
int playState = PS_STOP;
Thread thread;
/** Creates a new instance of PlayerThread */
public PlayerThread()
{
thread = new Thread(this);
thread.start();
}
public void run()
{
while (thread != null)
{
synchronized (this)
{
switch (playState)
{
case PS_PLAY_FWD:
curTime += timeStep;
break;
case PS_PLAY_BACK:
curTime -= timeStep;
if (curTime < 0) curTime = 0;
break;
default:
case PS_STOP:
break;
}
fireTimeUpdateEvent();
}
try
{
Thread.sleep((long)(timeStep * 1000));
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
}
public void exit() { thread = null; }
public synchronized void addListener(PlayerThreadListener listener)
{
listeners.add(listener);
}
public synchronized double getCurTime() { return curTime; }
public synchronized void setCurTime(double time)
{
curTime = time;
}
public synchronized double getTimeStep() { return timeStep; }
public synchronized void setTimeStep(double time)
{
timeStep = time;
if (timeStep < .01) timeStep = .01;
}
public synchronized int getPlayState() { return playState; }
public synchronized void setPlayState(int playState)
{
this.playState = playState;
}
private void fireTimeUpdateEvent()
{
for (Iterator it = listeners.iterator(); it.hasNext();)
{
PlayerThreadListener listener = (PlayerThreadListener)it.next();
listener.updateTime(curTime, timeStep, playState);
}
}
}
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