/*
* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.apple.laf;
import java.beans.*;
import java.util.*;
import javax.swing.JComponent;
public class ClientPropertyApplicator<T extends JComponent, N> implements PropertyChangeListener {
private final Map<String, Property<N>> properties = new HashMap<String, Property<N>>();
public ClientPropertyApplicator(final Property<N>... propertyList) {
for (final Property<N> p : propertyList) {
properties.put(p.name, p);
}
}
void applyProperty(final N target, final String propName, final Object value) {
final Property<N> property = properties.get(propName);
if (property != null) {
property.applyProperty(target, value);
}
}
public void attachAndApplyClientProperties(final T target) {
target.addPropertyChangeListener(this);
final N obj = convertJComponentToTarget(target);
if (obj == null) {
return;
}
final Set<String> propNames = properties.keySet();
for (final String propName : propNames) {
final Object value = target.getClientProperty(propName);
if (value == null) {
continue;
}
applyProperty(obj, propName, value);
}
}
public void removeFrom(final T target) {
target.removePropertyChangeListener(this);
}
@Override
@SuppressWarnings("unchecked")
public void propertyChange(final PropertyChangeEvent evt) {
final N obj = convertJComponentToTarget((T)evt.getSource());
if (obj == null) return;
applyProperty(obj, evt.getPropertyName(), evt.getNewValue());
}
@SuppressWarnings("unchecked")
public N convertJComponentToTarget(final T component) {
return (N)component; // naive implementation
}
public abstract static class Property<X> {
final String name;
public Property(final String name) {
this.name = name;
}
public abstract void applyProperty(final X target, final Object value);
}
}