// **********************************************************************// // <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/util/propertyEditor/TrueFalsePropertyEditor.java,v $// $RCSfile: TrueFalsePropertyEditor.java,v $// $Revision: 1.3.2.2 $// $Date: 2005/05/24 18:38:30 $// $Author: dietrick $// // **********************************************************************package com.bbn.openmap.util.propertyEditor;import java.awt.Component;import java.awt.GridBagConstraints;import java.awt.GridBagLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.FocusEvent;import java.awt.event.FocusListener;import java.beans.PropertyEditorSupport;import javax.swing.ButtonGroup;import javax.swing.JPanel;import javax.swing.JRadioButton;/** * A PropertyEditor that displays an either/or option. The widget * returns true or false as a string when queried, or the button's * action commands if set differently in subclasses. If you extend * this class and override the constructor, you can change the two * choices presented, like "enabled/disabled, on/off", etc. The * responses will be true and false, unless the action commands for * the trueButton and falseButton are set to something else and * useAltCommandStrings is set to true. */public class TrueFalsePropertyEditor extends PropertyEditorSupport implements        ActionListener, FocusListener {    protected ButtonGroup buttonGroup = new ButtonGroup();    protected boolean option = true;    protected JRadioButton trueButton;    protected JRadioButton falseButton;    protected boolean useAltCommandStrings = false;    public final static String TrueString = "true";    public final static String FalseString = "false";    public TrueFalsePropertyEditor() {        trueButton = new JRadioButton(TrueString);        falseButton = new JRadioButton(FalseString);    }    public boolean supportsCustomEditor() {        return true;    }    public void setUseAltCommandStrings(boolean value) {        useAltCommandStrings = value;    }    public boolean getUseAltCommandStrings() {        return useAltCommandStrings;    }    /** Returns the editor GUI, ie a JTextField. */    public Component getCustomEditor() {        JPanel panel = new JPanel();        GridBagLayout gridbag = new GridBagLayout();        GridBagConstraints c = new GridBagConstraints();        c.anchor = GridBagConstraints.WEST;        panel.setLayout(gridbag);        if (!getUseAltCommandStrings()) {            trueButton.setActionCommand(TrueString);            falseButton.setActionCommand(FalseString);        }        trueButton.addActionListener(this);        falseButton.addActionListener(this);        buttonGroup.add(trueButton);        buttonGroup.add(falseButton);        setSelected(option);        gridbag.setConstraints(trueButton, c);        c.fill = GridBagConstraints.HORIZONTAL;        c.weightx = 1;        gridbag.setConstraints(falseButton, c);        panel.add(trueButton);        panel.add(falseButton);        return panel;    }    public void actionPerformed(ActionEvent e) {        String ac = e.getActionCommand();        setSelected(ac.equalsIgnoreCase(trueButton.getActionCommand()));        //System.out.println("value changed");        firePropertyChange();    }    public void setSelected(boolean set) {        option = set;        trueButton.setSelected(option);        falseButton.setSelected(!option);    }    public void focusGained(FocusEvent e) {}    public void focusLost(FocusEvent e) {        firePropertyChange();    }    /** Sets String in JTextField. */    public void setValue(Object string) {        if (!(string instanceof String)) {            return;        }        setSelected(((String) string).equalsIgnoreCase(trueButton.getActionCommand()));    }    /** Returns String from ButtonGroup. */    public String getAsText() {        if (option) {            return trueButton.getActionCommand();        }        return falseButton.getActionCommand();    }}