/*
* @(#)Parity.java 1.3 98/07/17 SMI
*
* Author: Tom Corson
*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
* 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();
}
}