Import from http://drts.cvs.sourceforge.net/viewvc/drts/projects/jxinput/ tarball

java/de/hardcode/jxinput/virtual/VirtualDriver.java

@@ -0,0 +1,95 @@
+//**********************************************************************************************
+//		(C) Copyright 2002 by Dipl. Phys. Joerg Plewe, HARDCODE Development
+//		All rights reserved. Copying, modification,
+//		distribution or publication without the prior written
+//		consent of the author is prohibited.
+//
+//	Created on 9. April 2002, 22:43
+//**********************************************************************************************
+package de.hardcode.jxinput.virtual;
+
+import java.util.ArrayList;
+import de.hardcode.jxinput.Axis;
+
+
+
+/**
+ * This is the main worker class for JXVirtualInputDevice.
+ * 
+ * @author  Herkules
+ */
+class VirtualDriver 
+{	
+
+	private final VirtualAxis[] mVAxes = new VirtualAxis[ Axis.NUMBER_OF_ID ];
+	
+	/**
+	 * Creates a new instance of KeyboardDriver.
+	 */
+	VirtualDriver()
+	{
+	}
+
+	
+	/**
+	 * Update features under my control.
+	 */
+	final void update( long deltaT )
+	{
+		//
+		// Delegate the update call to the axes in use.
+		//
+		for ( int i = 0; i < mVAxes.length; i++ )
+		{
+			if ( null != mVAxes[ i ] )
+				mVAxes[ i ].update( deltaT );
+		}
+	}
+
+	
+	/**
+	 * How many axes are registered?
+	 */
+	final int getNumberOfAxes()
+	{
+		int ctr = 0;
+		for ( int i = 0; i < mVAxes.length; i++ )
+		{
+			if ( null != mVAxes[ i ] )
+				ctr++;
+		}
+		return ctr;
+	}
+	
+	Axis getAxis(int idx)
+	{
+		return mVAxes[ idx ];
+	}
+	
+	
+	/** 
+	 * Place a new axis under my observation.
+	 */
+	final void registerVirtualAxis( int id, VirtualAxis a )
+	{
+		mVAxes[ id ] = a;
+	}
+	
+	
+	/**
+	 * Remove an axis from my control.
+	 */
+	final void unregisterVirtualAxis( VirtualAxis a )
+	{
+		for ( int i = 0; i < mVAxes.length; ++i )
+		{
+			if ( mVAxes[ i ] == a )
+			{
+				mVAxes[ i ] = null;
+				break;
+			}
+		}
+	}
+	
+	
+}