// 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.JLabel;
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 JLabel} to a value in a {@link BindableModel}.
*/
public class JLabelWiringHarness implements WiringHarness<Bound, Field> {
public Collection<Binding> wire(Bound bound, BindingContext context, Field field)
throws IllegalAccessException, IntrospectionException {
JLabel label = context.getFieldObject(field, JLabel.class);
Mutator mutator = Mutator.create(context, bound.to());
return ImmutableList.of(bindJLabel(mutator, label));
}
public static Binding bindJLabel(final Mutator mutator, final JLabel label) {
Binding binding = new Binding() {
public <T extends Enum<?> & ModelUpdate> void update(T... changed) {
try {
String text = "";
Object obj = mutator.get();
if (obj != null) {
text = obj.toString();
}
label.setText(text);
} catch (Exception ex) {
Wiring.logger.error("exception in JLabel binding", ex);
}
}
};
mutator.getModel().bind(binding);
return binding;
}
}