// **********************************************************************
//
// <copyright>
//
// BBN Technologies
// 10 Moulton Street
// Cambridge, MA 02138
// (617) 873-8000
//
// Copyright (C) BBNT Solutions LLC. All rights reserved.
//
// </copyright>
// **********************************************************************
//
// $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/gui/UTMCoordPanel.java,v $
// $RCSfile: UTMCoordPanel.java,v $
// $Revision: 1.3.2.5 $
// $Date: 2008/02/29 00:31:06 $
// $Author: dietrick $
//
// **********************************************************************
package com.bbn.openmap.gui;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.io.Serializable;
import javax.swing.*;
import javax.swing.border.*;
import com.bbn.openmap.LatLonPoint;
import com.bbn.openmap.event.CenterSupport;
import com.bbn.openmap.proj.coords.UTMPoint;
import com.bbn.openmap.util.Debug;
import com.bbn.openmap.I18n;
/**
* UTMCoordPanel is a simple gui with entry boxes and labels for Zone
* number and letters, and easting and northing representation of
* latitude and longitude. It sets the center of a map with the
* entered coordinates by firing CenterEvents.
*/
public class UTMCoordPanel extends CoordPanel implements Serializable {
protected transient JTextField zoneLetter, zoneNumber, easting, northing;
/**
* Creates the panel.
*/
public UTMCoordPanel() {
super();
}
/**
* Creates the panel.
*/
public UTMCoordPanel(CenterSupport support) {
super(support);
}
/**
* Creates and adds the labels and entry fields for latitude and
* longitude
*/
protected void makeWidgets() {
String locText;
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
setLayout(gridbag);
locText = i18n.get(UTMCoordPanel.class,
"border",
"Zone Number|Hemisphere|Easting|Northing");
setBorder(new TitledBorder(new EtchedBorder(), locText));
locText = i18n.get(UTMCoordPanel.class, "utmLabel", "UTM: ");
JLabel utmLabel = new JLabel(locText);
c.gridx = 0;
gridbag.setConstraints(utmLabel, c);
add(utmLabel);
c.gridx = GridBagConstraints.RELATIVE;
zoneNumber = new JTextField(3);
zoneNumber.setToolTipText(i18n.get(UTMCoordPanel.class,
"zone",
I18n.TOOLTIP,
"Zone Number: 1-60"));
gridbag.setConstraints(zoneNumber, c);
add(zoneNumber);
zoneLetter = new JTextField(2);
zoneLetter.setToolTipText(i18n.get(UTMCoordPanel.class,
"hemi",
I18n.TOOLTIP,
"Hemisphere: N or S"));
gridbag.setConstraints(zoneLetter, c);
add(zoneLetter);
easting = new JTextField(8);
gridbag.setConstraints(easting, c);
add(easting);
northing = new JTextField(8);
gridbag.setConstraints(northing, c);
add(northing);
}
/**
* @return the LatLonPoint represented by contents of the entry
* boxes
*/
public LatLonPoint getLatLon() {
int iZoneNumber;
char cZoneLetter;
try {
// Allow blank minutes and seconds fields to represent
// zero
iZoneNumber = Float.valueOf(zoneNumber.getText()).intValue();
cZoneLetter = zoneLetter.getText().charAt(0);
float minEasting = easting.getText().equals("") ? 0f
: Float.valueOf(easting.getText()).floatValue();
easting.setText(Float.toString(Math.abs(minEasting)));
float minNorthing = northing.getText().equals("") ? 0
: Float.valueOf(northing.getText()).floatValue();
northing.setText(Float.toString(Math.abs(minNorthing)));
UTMPoint utm = new UTMPoint(minNorthing, minEasting, iZoneNumber, cZoneLetter);
return utm.toLatLonPoint();
} catch (NumberFormatException except) {
Debug.output(except.toString());
clearTextBoxes();
}
return null;
}
/**
* Sets the contents of the latitude and longitude entry boxes
*
* @param llpoint the object containing the coordinates that
* should go in the boxes.
*/
public void setLatLon(LatLonPoint llpoint) {
if (llpoint == null) {
clearTextBoxes();
return;
}
UTMPoint utm = new UTMPoint(llpoint);
northing.setText(Float.toString(utm.northing));
easting.setText(Float.toString(utm.easting));
zoneNumber.setText(Integer.toString(utm.zone_number));
zoneLetter.setText((char) utm.zone_letter + "");
}
protected void clearTextBoxes() {
northing.setText("");
easting.setText("");
zoneLetter.setText("");
zoneNumber.setText("");
}
}