| /* |
| * Copyright (c) 1997, 2008, 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 javax.swing; |
| |
| import java.util.Enumeration; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Locale; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| |
| |
| |
| /** |
| * |
| * @author Hans Muller |
| */ |
| class MultiUIDefaults extends UIDefaults |
| { |
| private UIDefaults[] tables; |
| |
| public MultiUIDefaults(UIDefaults[] defaults) { |
| super(); |
| tables = defaults; |
| } |
| |
| public MultiUIDefaults() { |
| super(); |
| tables = new UIDefaults[0]; |
| } |
| |
| @Override |
| public Object get(Object key) |
| { |
| Object value = super.get(key); |
| if (value != null) { |
| return value; |
| } |
| |
| for (UIDefaults table : tables) { |
| value = (table != null) ? table.get(key) : null; |
| if (value != null) { |
| return value; |
| } |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public Object get(Object key, Locale l) |
| { |
| Object value = super.get(key,l); |
| if (value != null) { |
| return value; |
| } |
| |
| for (UIDefaults table : tables) { |
| value = (table != null) ? table.get(key,l) : null; |
| if (value != null) { |
| return value; |
| } |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public int size() { |
| return entrySet().size(); |
| } |
| |
| @Override |
| public boolean isEmpty() { |
| return size() == 0; |
| } |
| |
| @Override |
| public Enumeration<Object> keys() |
| { |
| return new MultiUIDefaultsEnumerator( |
| MultiUIDefaultsEnumerator.Type.KEYS, entrySet()); |
| } |
| |
| @Override |
| public Enumeration<Object> elements() |
| { |
| return new MultiUIDefaultsEnumerator( |
| MultiUIDefaultsEnumerator.Type.ELEMENTS, entrySet()); |
| } |
| |
| @Override |
| public Set<Entry<Object, Object>> entrySet() { |
| Set<Entry<Object, Object>> set = new HashSet<Entry<Object, Object>>(); |
| for (int i = tables.length - 1; i >= 0; i--) { |
| if (tables[i] != null) { |
| set.addAll(tables[i].entrySet()); |
| } |
| } |
| set.addAll(super.entrySet()); |
| return set; |
| } |
| |
| @Override |
| protected void getUIError(String msg) { |
| if (tables.length > 0) { |
| tables[0].getUIError(msg); |
| } else { |
| super.getUIError(msg); |
| } |
| } |
| |
| private static class MultiUIDefaultsEnumerator implements Enumeration<Object> |
| { |
| public static enum Type { KEYS, ELEMENTS }; |
| private Iterator<Entry<Object, Object>> iterator; |
| private Type type; |
| |
| MultiUIDefaultsEnumerator(Type type, Set<Entry<Object, Object>> entries) { |
| this.type = type; |
| this.iterator = entries.iterator(); |
| } |
| |
| public boolean hasMoreElements() { |
| return iterator.hasNext(); |
| } |
| |
| public Object nextElement() { |
| switch (type) { |
| case KEYS: return iterator.next().getKey(); |
| case ELEMENTS: return iterator.next().getValue(); |
| default: return null; |
| } |
| } |
| } |
| |
| @Override |
| public Object remove(Object key) |
| { |
| Object value = null; |
| for (int i = tables.length - 1; i >= 0; i--) { |
| if (tables[i] != null) { |
| Object v = tables[i].remove(key); |
| if (v != null) { |
| value = v; |
| } |
| } |
| } |
| Object v = super.remove(key); |
| if (v != null) { |
| value = v; |
| } |
| |
| return value; |
| } |
| |
| @Override |
| public void clear() { |
| super.clear(); |
| for (UIDefaults table : tables) { |
| if (table != null) { |
| table.clear(); |
| } |
| } |
| } |
| |
| @Override |
| public synchronized String toString() { |
| StringBuffer buf = new StringBuffer(); |
| buf.append("{"); |
| Enumeration keys = keys(); |
| while (keys.hasMoreElements()) { |
| Object key = keys.nextElement(); |
| buf.append(key + "=" + get(key) + ", "); |
| } |
| int length = buf.length(); |
| if (length > 1) { |
| buf.delete(length-2, length); |
| } |
| buf.append("}"); |
| return buf.toString(); |
| } |
| } |