1 files changed, 129 insertions, 0 deletions
diff --git a/src/main/java/com/kitfox/svg/app/PlayerThread.java b/src/main/java/com/kitfox/svg/app/PlayerThread.java
new file mode 100644
index 0000000..90a3a28
--- /dev/null
+++ b/src/main/java/com/kitfox/svg/app/PlayerThread.java
@@ -0,0 +1,129 @@
+/*
+ * PlayerThread.java
+ *
+ *
+ *  The Salamander Project - 2D and 3D graphics libraries in Java
+ *  Copyright (C) 2004 Mark McKay
+ *
+ *  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; either
+ *  version 2.1 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
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser 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
+ *
+ *  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);
+        }
+    }
+}