source: release-kits/shared/launch4j/src/net/sf/launch4j/binding/JRadioButtonBinding.java@ 15024

/*
    Launch4j (http://launch4j.sourceforge.net/)
    Cross-platform Java application wrapper for creating Windows native executables.

    Copyright (C) 2004, 2006 Grzegorz Kowal

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

/*
 * Created on May 10, 2005
 */
package net.sf.launch4j.binding;

import java.awt.Color;

import javax.swing.JRadioButton;

import org.apache.commons.beanutils.PropertyUtils;

/**
 * @author Copyright (C) 2005 Grzegorz Kowal
 */
public class JRadioButtonBinding implements Binding {
    private final String _property;
    private final JRadioButton[] _buttons;
    private final int _defaultValue;
    private final Color _validColor;

    public JRadioButtonBinding(String property, JRadioButton[] buttons, int defaultValue) {
        if (property == null || buttons == null) {
            throw new NullPointerException();
        }
        for (int i = 0; i < buttons.length; i++) {
            if (buttons[i] == null) {
                throw new NullPointerException();
            }
        }
        if (property.equals("") //$NON-NLS-1$
                || buttons.length == 0
                || defaultValue < 0 || defaultValue >= buttons.length) {
            throw new IllegalArgumentException();
        }
        _property = property;
        _buttons = buttons;
        _defaultValue = defaultValue;
        _validColor = buttons[0].getBackground();
    }

    public String getProperty() {
        return _property;
    }

    public void clear(IValidatable bean) {
        select(_defaultValue);
    }

    public void put(IValidatable bean) {
        try {
            Integer i = (Integer) PropertyUtils.getProperty(bean, _property);
            if (i == null) {
                throw new BindingException(Messages.getString("JRadioButtonBinding.property.null")); //$NON-NLS-1$
            }
            select(i.intValue());
        } catch (Exception e) {
            throw new BindingException(e);
        }
    }

    public void get(IValidatable bean) {
        try {
            for (int i = 0; i < _buttons.length; i++) {
                if (_buttons[i].isSelected()) {
                    PropertyUtils.setProperty(bean, _property, new Integer(i));
                    return;
                }
            }
            throw new BindingException(Messages.getString("JRadioButtonBinding.nothing.selected")); //$NON-NLS-1$
        } catch (Exception e) {
            throw new BindingException(e);
        }
    }

    private void select(int index) {
        if (index < 0 || index >= _buttons.length) {
            throw new BindingException(Messages.getString("JRadioButtonBinding.index.out.of.bounds")); //$NON-NLS-1$
        }
        _buttons[index].setSelected(true);
    }

    public void markValid() {
        for (int i = 0; i < _buttons.length; i++) {
            if (_buttons[i].isSelected()) {
                _buttons[i].setBackground(_validColor);
                _buttons[i].requestFocusInWindow();
                return;
            }
        }
        throw new BindingException(Messages.getString("JRadioButtonBinding.nothing.selected")); //$NON-NLS-1$
    }

    public void markInvalid() {
        for (int i = 0; i < _buttons.length; i++) {
            if (_buttons[i].isSelected()) {
                _buttons[i].setBackground(Binding.INVALID_COLOR);
                return;
            }
        }
        throw new BindingException(Messages.getString("JRadioButtonBinding.nothing.selected")); //$NON-NLS-1$
    }
    
    public void setEnabled(boolean enabled) {
        for (int i = 0; i < _buttons.length; i++) {
            _buttons[i].setEnabled(enabled);
        }
    }
}