Showing the changes to java/pkg/javax/swing/MultiUIDefaults.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2008, 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 | + | |
| 26 | +package javax.swing; | |
| 27 | + | |
| 28 | +import java.util.Enumeration; | |
| 29 | +import java.util.HashSet; | |
| 30 | +import java.util.Iterator; | |
| 31 | +import java.util.Locale; | |
| 32 | +import java.util.Map.Entry; | |
| 33 | +import java.util.Set; | |
| 34 | + | |
| 35 | + | |
| 36 | + | |
| 37 | +/** | |
| 38 | + * | |
| 39 | + * @author Hans Muller | |
| 40 | + */ | |
| 41 | +class MultiUIDefaults extends UIDefaults | |
| 42 | +{ | |
| 43 | + private UIDefaults[] tables; | |
| 44 | + | |
| 45 | + public MultiUIDefaults(UIDefaults[] defaults) { | |
| 46 | + super(); | |
| 47 | + tables = defaults; | |
| 48 | + } | |
| 49 | + | |
| 50 | + public MultiUIDefaults() { | |
| 51 | + super(); | |
| 52 | + tables = new UIDefaults[0]; | |
| 53 | + } | |
| 54 | + | |
| 55 | + @Override | |
| 56 | + public Object get(Object key) | |
| 57 | + { | |
| 58 | + Object value = super.get(key); | |
| 59 | + if (value != null) { | |
| 60 | + return value; | |
| 61 | + } | |
| 62 | + | |
| 63 | + for (UIDefaults table : tables) { | |
| 64 | + value = (table != null) ? table.get(key) : null; | |
| 65 | + if (value != null) { | |
| 66 | + return value; | |
| 67 | + } | |
| 68 | + } | |
| 69 | + | |
| 70 | + return null; | |
| 71 | + } | |
| 72 | + | |
| 73 | + @Override | |
| 74 | + public Object get(Object key, Locale l) | |
| 75 | + { | |
| 76 | + Object value = super.get(key,l); | |
| 77 | + if (value != null) { | |
| 78 | + return value; | |
| 79 | + } | |
| 80 | + | |
| 81 | + for (UIDefaults table : tables) { | |
| 82 | + value = (table != null) ? table.get(key,l) : null; | |
| 83 | + if (value != null) { | |
| 84 | + return value; | |
| 85 | + } | |
| 86 | + } | |
| 87 | + | |
| 88 | + return null; | |
| 89 | + } | |
| 90 | + | |
| 91 | + @Override | |
| 92 | + public int size() { | |
| 93 | + return entrySet().size(); | |
| 94 | + } | |
| 95 | + | |
| 96 | + @Override | |
| 97 | + public boolean isEmpty() { | |
| 98 | + return size() == 0; | |
| 99 | + } | |
| 100 | + | |
| 101 | + @Override | |
| 102 | + public Enumeration<Object> keys() | |
| 103 | + { | |
| 104 | + return new MultiUIDefaultsEnumerator( | |
| 105 | + MultiUIDefaultsEnumerator.Type.KEYS, entrySet()); | |
| 106 | + } | |
| 107 | + | |
| 108 | + @Override | |
| 109 | + public Enumeration<Object> elements() | |
| 110 | + { | |
| 111 | + return new MultiUIDefaultsEnumerator( | |
| 112 | + MultiUIDefaultsEnumerator.Type.ELEMENTS, entrySet()); | |
| 113 | + } | |
| 114 | + | |
| 115 | + @Override | |
| 116 | + public Set<Entry<Object, Object>> entrySet() { | |
| 117 | + Set<Entry<Object, Object>> set = new HashSet<Entry<Object, Object>>(); | |
| 118 | + for (int i = tables.length - 1; i >= 0; i--) { | |
| 119 | + if (tables[i] != null) { | |
| 120 | + set.addAll(tables[i].entrySet()); | |
| 121 | + } | |
| 122 | + } | |
| 123 | + set.addAll(super.entrySet()); | |
| 124 | + return set; | |
| 125 | + } | |
| 126 | + | |
| 127 | + @Override | |
| 128 | + protected void getUIError(String msg) { | |
| 129 | + if (tables.length > 0) { | |
| 130 | + tables[0].getUIError(msg); | |
| 131 | + } else { | |
| 132 | + super.getUIError(msg); | |
| 133 | + } | |
| 134 | + } | |
| 135 | + | |
| 136 | + private static class MultiUIDefaultsEnumerator implements Enumeration<Object> | |
| 137 | + { | |
| 138 | + public static enum Type { KEYS, ELEMENTS }; | |
| 139 | + private Iterator<Entry<Object, Object>> iterator; | |
| 140 | + private Type type; | |
| 141 | + | |
| 142 | + MultiUIDefaultsEnumerator(Type type, Set<Entry<Object, Object>> entries) { | |
| 143 | + this.type = type; | |
| 144 | + this.iterator = entries.iterator(); | |
| 145 | + } | |
| 146 | + | |
| 147 | + public boolean hasMoreElements() { | |
| 148 | + return iterator.hasNext(); | |
| 149 | + } | |
| 150 | + | |
| 151 | + public Object nextElement() { | |
| 152 | + switch (type) { | |
| 153 | + case KEYS: return iterator.next().getKey(); | |
| 154 | + case ELEMENTS: return iterator.next().getValue(); | |
| 155 | + default: return null; | |
| 156 | + } | |
| 157 | + } | |
| 158 | + } | |
| 159 | + | |
| 160 | + @Override | |
| 161 | + public Object remove(Object key) | |
| 162 | + { | |
| 163 | + Object value = null; | |
| 164 | + for (int i = tables.length - 1; i >= 0; i--) { | |
| 165 | + if (tables[i] != null) { | |
| 166 | + Object v = tables[i].remove(key); | |
| 167 | + if (v != null) { | |
| 168 | + value = v; | |
| 169 | + } | |
| 170 | + } | |
| 171 | + } | |
| 172 | + Object v = super.remove(key); | |
| 173 | + if (v != null) { | |
| 174 | + value = v; | |
| 175 | + } | |
| 176 | + | |
| 177 | + return value; | |
| 178 | + } | |
| 179 | + | |
| 180 | + @Override | |
| 181 | + public void clear() { | |
| 182 | + super.clear(); | |
| 183 | + for (UIDefaults table : tables) { | |
| 184 | + if (table != null) { | |
| 185 | + table.clear(); | |
| 186 | + } | |
| 187 | + } | |
| 188 | + } | |
| 189 | + | |
| 190 | + @Override | |
| 191 | + public synchronized String toString() { | |
| 192 | + StringBuffer buf = new StringBuffer(); | |
| 193 | + buf.append("{"); | |
| 194 | + Enumeration keys = keys(); | |
| 195 | + while (keys.hasMoreElements()) { | |
| 196 | + Object key = keys.nextElement(); | |
| 197 | + buf.append(key + "=" + get(key) + ", "); | |
| 198 | + } | |
| 199 | + int length = buf.length(); | |
| 200 | + if (length > 1) { | |
| 201 | + buf.delete(length-2, length); | |
| 202 | + } | |
| 203 | + buf.append("}"); | |
| 204 | + return buf.toString(); | |
| 205 | + } | |
| 206 | +} | |