1/* 2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package com.apple.laf; 27 28import java.beans.*; 29import java.util.*; 30 31import javax.swing.JComponent; 32 33public class ClientPropertyApplicator<T extends JComponent, N> implements PropertyChangeListener { 34 private final Map<String, Property<N>> properties = new HashMap<String, Property<N>>(); 35 36 @SuppressWarnings("unchecked") 37 public ClientPropertyApplicator(final Property<N>... propertyList) { 38 for (final Property<N> p : propertyList) { 39 properties.put(p.name, p); 40 } 41 } 42 43 void applyProperty(final N target, final String propName, final Object value) { 44 final Property<N> property = properties.get(propName); 45 if (property != null) { 46 property.applyProperty(target, value); 47 } 48 } 49 50 public void attachAndApplyClientProperties(final T target) { 51 target.addPropertyChangeListener(this); 52 final N obj = convertJComponentToTarget(target); 53 if (obj == null) { 54 return; 55 } 56 57 final Set<String> propNames = properties.keySet(); 58 for (final String propName : propNames) { 59 final Object value = target.getClientProperty(propName); 60 if (value == null) { 61 continue; 62 } 63 applyProperty(obj, propName, value); 64 } 65 } 66 67 public void removeFrom(final T target) { 68 target.removePropertyChangeListener(this); 69 } 70 71 @Override 72 @SuppressWarnings("unchecked") 73 public void propertyChange(final PropertyChangeEvent evt) { 74 final N obj = convertJComponentToTarget((T)evt.getSource()); 75 if (obj == null) return; 76 applyProperty(obj, evt.getPropertyName(), evt.getNewValue()); 77 } 78 79 @SuppressWarnings("unchecked") 80 public N convertJComponentToTarget(final T component) { 81 return (N)component; // naive implementation 82 } 83 84 public abstract static class Property<X> { 85 final String name; 86 87 public Property(final String name) { 88 this.name = name; 89 } 90 91 public abstract void applyProperty(final X target, final Object value); 92 } 93} 94