/*
* @(#)FlowCtlDisplay.java 1.7 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.Panel;
import java.awt.Label;
import java.awt.Checkbox;
import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ItemListener;
import java.awt.event.ItemEvent;
import javax.comm.SerialPort;
import javax.comm.UnsupportedCommOperationException;
public class FlowCtlDisplay extends Panel implements ItemListener
{
SerialPort port = null;
Label RTSLabel,
XONLabel,
RCVLabel,
XMTLabel;
Checkbox RCVRTS,
XMTRTS,
RCVXON,
XMTXON;
private Color onColor,
offColor;
public FlowCtlDisplay(SerialPort port)
{
super();
this.setPort(port);
this.setLayout(new GridLayout(0, 3));
this.add(new Label(""));
RTSLabel = new Label("RTS/CTS");
this.add(RTSLabel);
XONLabel = new Label("XON/XOFF");
this.add(XONLabel);
RCVLabel = new Label("RCV");
this.add(RCVLabel);
RCVRTS = new Checkbox();
RCVRTS.addItemListener(this);
this.add(RCVRTS);
RCVXON = new Checkbox();
RCVXON.addItemListener(this);
this.add(RCVXON);
XMTLabel = new Label("XMT");
this.add(XMTLabel);
XMTRTS = new Checkbox();
XMTRTS.addItemListener(this);
this.add(XMTRTS);
XMTXON = new Checkbox();
XMTXON.addItemListener(this);
this.add(XMTXON);
onColor = Color.green;
offColor = Color.black;
}
public void setPort(SerialPort port)
{
this.port = port;
}
public void showValues()
{
if (this.port != null)
{
/*
* Get the flow control mode
*/
int mode = port.getFlowControlMode();
if ((mode & SerialPort.FLOWCONTROL_RTSCTS_IN) > 0)
{
RCVRTS.setState(true);
RCVRTS.setForeground(onColor);
}
else
{
RCVRTS.setState(false);
RCVRTS.setForeground(offColor);
}
if ((mode & SerialPort.FLOWCONTROL_XONXOFF_IN) > 0)
{
RCVXON.setState(true);
RCVXON.setForeground(onColor);
}
else
{
RCVXON.setState(false);
RCVXON.setForeground(offColor);
}
if ((mode & SerialPort.FLOWCONTROL_RTSCTS_OUT) > 0)
{
XMTRTS.setState(true);
XMTRTS.setForeground(onColor);
}
else
{
XMTRTS.setState(false);
XMTRTS.setForeground(offColor);
}
if ((mode & SerialPort.FLOWCONTROL_XONXOFF_OUT) > 0)
{
XMTXON.setState(true);
XMTXON.setForeground(onColor);
}
else
{
XMTXON.setState(false);
XMTXON.setForeground(offColor);
}
}
else
{
this.clearValues();
}
}
public void itemStateChanged(ItemEvent ev)
{
String sel = (String) ev.getItem();
int value = SerialPort.FLOWCONTROL_NONE;
if (this.port != null)
{
if (this.RCVRTS.getState())
{
value |= SerialPort.FLOWCONTROL_RTSCTS_IN;
}
if (this.RCVXON.getState())
{
value |= SerialPort.FLOWCONTROL_XONXOFF_IN;
}
if (this.XMTRTS.getState())
{
value |= SerialPort.FLOWCONTROL_RTSCTS_OUT;
}
if (this.XMTXON.getState())
{
value |= SerialPort.FLOWCONTROL_XONXOFF_OUT;
}
/*
* Set the flow control mode
*/
try {
this.port.setFlowControlMode(value);
} catch (UnsupportedCommOperationException ucoe) {
ucoe.printStackTrace();
}
}
this.showValues();
}
public void clearValues()
{
RCVRTS.setState(false);
RCVRTS.setForeground(offColor);
RCVXON.setState(false);
RCVXON.setForeground(offColor);
XMTRTS.setState(false);
XMTRTS.setForeground(offColor);
XMTXON.setState(false);
XMTXON.setForeground(offColor);
}
}