/* * @(#)CtlSigDisplay.java	1.1 98/06/02 SMI * * Author: Tom Corson * * Copyright (c) 1998 Sun Microsystems, Inc. All Rights Reserved. * * Sun grants you ("Licensee") a non-exclusive, royalty free, license  * to use, modify and redistribute this software in source and binary * code form, provided that i) this copyright notice and license appear * on all copies of the software; and ii) Licensee does not utilize the * software in a manner which is disparaging to Sun. * * This software is provided "AS IS," without a warranty of any kind. * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND * ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY * LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE * SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS * BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, * HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING * OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN * ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * This software is not designed or intended for use in on-line control * of aircraft, air traffic, aircraft navigation or aircraft * communications; or in the design, construction, operation or * maintenance of any nuclear facility. Licensee represents and * warrants that it will not use or redistribute the Software for such * purposes. */import java.awt.Panel;import java.awt.Label;import java.awt.Color;import java.awt.FlowLayout;import javax.comm.ParallelPort;public class CtlSigDisplay extends Panel{	ParallelPort	port = null;	Label		SELLabel,			BSYLabel,			TOLabel,			PELabel,			POLabel,			BELabel;	boolean		DA,			BE;	private Color	onColor,			offColor;	public CtlSigDisplay(ParallelPort	port)	{		super();		this.setPort(port);		this.setLayout(new FlowLayout());		SELLabel = new Label("SEL");		this.add(SELLabel);		BSYLabel = new Label("BSY");		this.add(BSYLabel);		TOLabel = new Label("TO");		this.add(TOLabel);		PELabel = new Label("PE");		this.add(PELabel);		POLabel = new Label("PO");		this.add(POLabel);		DA = false;		BELabel = new Label("BE");		this.add(BELabel);		BE = true;		onColor = Color.green;		offColor = Color.black;	}	public void setPort(ParallelPort	port)	{		this.port = port;	}	public void showValues()	{		if (this.port != null)		{			/*			 *  Get the state of the control signals for this port			 */				SELLabel.setForeground(port.isPrinterSelected()						 ? onColor : offColor);				BSYLabel.setForeground(port.isPrinterBusy()						 ? onColor : offColor);		}	}	public void showErrorValues()	{		if (this.port != null)		{			/*			 *  Get the state of the error conditions for this port			 */					TOLabel.setForeground(port.isPrinterTimedOut()						 ? onColor : offColor);				PELabel.setForeground(port.isPrinterError()						 ? onColor : offColor);				POLabel.setForeground(port.isPaperOut() ? onColor : offColor);			BELabel.setForeground(BE ? onColor : offColor);		}	}	public void clearValues()	{		SELLabel.setForeground(offColor);		BSYLabel.setForeground(offColor);	}	public void clearErrorValues()	{		TOLabel.setForeground(offColor);		PELabel.setForeground(offColor);		POLabel.setForeground(offColor);		BELabel.setForeground(offColor);	}}