/* * @(#)Parity.java	1.3 98/07/17 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.Choice;import java.awt.event.ItemListener;import java.awt.event.ItemEvent;import javax.comm.SerialPort;import javax.comm.UnsupportedCommOperationException;class Parity extends Choice implements ItemListener{	private SerialPortDisplay	owner;	public Parity(SerialPortDisplay	owner)	{		super();		this.add("Unknown");		this.add("None");		this.add("Odd");		this.add("Even");		this.addItemListener(this);		this.owner = owner;	}	protected void showValue()	{		if (this.owner.open)		{			/*			 *  Get the parity setting			 */				switch (this.owner.port.getParity())			{			case SerialPort.PARITY_NONE:					this.select("None");				break;				case SerialPort.PARITY_ODD:					this.select("Odd");				break;				case SerialPort.PARITY_EVEN:					this.select("Even");				break;				default:					this.select("Unknown");				break;			}		}		else		{			this.select("Unknown");		}	}	public void itemStateChanged(ItemEvent	ev)	{		SerialPort	port;		String 		sel = (String) ev.getItem();		int		value = 0;		if (sel.equals("None"))		{			value = SerialPort.PARITY_NONE;		}		else if (sel.equals("Odd"))		{			value = SerialPort.PARITY_ODD;		}		else if (sel.equals("Even"))		{			value = SerialPort.PARITY_EVEN;		}		else		{			this.showValue();		}		port = this.owner.port;		if ((value > 0) && (port != null))		{			/*			 *  Set the parity.			 *			 *  Note: we must set all of the parameters, not just 			 *  the parity, hence the use of get*			 */			try			{				port.setSerialPortParams(port.getBaudRate(),							 port.getDataBits(), 							 port.getStopBits(), 							 value);			}					catch (UnsupportedCommOperationException e)			{				System.out.println("Cannot set parity to "						   + sel + " for port " 						   + port.getName());			}		}		this.owner.showValues();	}}