// Copyright 2011 Palantir Technologies
//
// Licensed 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 com.palantir.ptoss.cinch.swing;
import java.beans.IntrospectionException;
import java.lang.reflect.Field;
import java.util.Collection;
import javax.swing.JSlider;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import com.google.common.collect.ImmutableList;
import com.palantir.ptoss.cinch.core.*;
import com.palantir.ptoss.cinch.swing.Bound.Wiring;
import com.palantir.ptoss.util.Mutator;
/**
* A {@link WiringHarness} for binding a {@link JSlider} to an {@link Integer} value in a
* {@link BindableModel}.
*/
public class JSliderWiringHarness implements WiringHarness<Bound, Field> {
public Collection<Binding> wire(Bound bound, BindingContext context, Field field) throws IllegalAccessException, IntrospectionException {
String target = bound.to();
Mutator mutator = Mutator.create(context, target);
JSlider slider = context.getFieldObject(field, JSlider.class);
return ImmutableList.of(bindJSlider(mutator, slider));
}
public static Binding bindJSlider(final Mutator mutator, final JSlider slider) {
final ChangeListener changeListener = new ChangeListener() {
public void stateChanged(ChangeEvent e) {
try {
if (!slider.getValueIsAdjusting()) {
mutator.set(slider.getValue());
}
} catch (Exception ex) {
Wiring.logger.error("exception in JSlider binding", ex);
}
}
};
slider.addChangeListener(changeListener);
Binding binding = new Binding() {
public <T extends Enum<?> & ModelUpdate> void update(T... changed) {
try {
Integer val = (Integer)mutator.get();
if (val == null) {
val = -1;
}
if (!val.equals(slider.getValue())) {
slider.removeChangeListener(changeListener);
slider.setValue(val);
slider.addChangeListener(changeListener);
}
} catch (Exception ex) {
Wiring.logger.error("exception in JSlider binding", ex);
}
}
};
mutator.getModel().bind(binding);
return binding;
}
}