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Groovy: A powerful, dynamic language for the JVM
/**
* 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 groovy.swing.binding;
import org.codehaus.groovy.binding.*;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.HashMap;
import java.util.Map;
/**
* @author Danno Ferrin
* @since Groovy 1.1
*/
public class JSliderProperties {
public static Map getSyntheticProperties() {
Map result = new HashMap();
result.put(JSlider.class.getName() + "#value",
new TriggerBinding() {
public FullBinding createBinding(SourceBinding source, TargetBinding target) {
return new JSliderValueBinding((PropertyBinding) source, target);
}
});
return result;
}
}
class JSliderValueBinding extends AbstractSyntheticBinding implements PropertyChangeListener, ChangeListener {
JSlider boundSlider;
public JSliderValueBinding(PropertyBinding source, TargetBinding target) {
super(source, target, JSlider.class, "value");
}
public synchronized void syntheticBind() {
boundSlider = (JSlider) ((PropertyBinding)sourceBinding).getBean();
boundSlider.addPropertyChangeListener("model", this);
boundSlider.getModel().addChangeListener(this);
}
public synchronized void syntheticUnbind() {
boundSlider.removePropertyChangeListener("model", this);
boundSlider.getModel().removeChangeListener(this);
boundSlider = null;
}
public void propertyChange(PropertyChangeEvent event) {
update();
((BoundedRangeModel) event.getOldValue()).removeChangeListener(this);
((BoundedRangeModel) event.getNewValue()).addChangeListener(this);
}
public void stateChanged(ChangeEvent e) {
update();
}
}