taverna-uibuilder/src/main/java/org/apache/taverna/lang/uibuilder/BeanCheckBox.java

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/

package org.apache.taverna.lang.uibuilder;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Properties;

import javax.swing.Box;
import javax.swing.JCheckBox;

/**
 * Bean field editor using a JCheckBox to handle boolean and Boolean field types
 * 
 * @author Tom Oinn
 */
public class BeanCheckBox extends BeanComponent implements AlignableComponent {

	private static final long serialVersionUID = -2842617445268734650L;
	private JCheckBox value;

	public BeanCheckBox(Object target, String propertyName, Properties props)
			throws NoSuchMethodException {
		this(target, propertyName, true, props);
	}

	public BeanCheckBox(Object target, String propertyName, boolean useLabel,
			Properties props) throws NoSuchMethodException {
		super(target, propertyName, useLabel, props);
		setLayout(new BorderLayout());
		value = new JCheckBox();
		value.setSelected(getBooleanProperty());
		value.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				boolean isSelected = value.isSelected();
				currentObjectValue = isSelected;
				setProperty();
			}
		});
		addLabel();
		value.setOpaque(false);
		add(Box.createHorizontalGlue(), BorderLayout.CENTER);
		add(value, BorderLayout.EAST);
	}

	@Override
	protected void updateComponent() {
		value.setSelected(getBooleanProperty());
	}

	private boolean getBooleanProperty() {
		return (Boolean) getProperty();
	}

}