| /* |
| * Copyright 1997-2008 Sun Microsystems, Inc. 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. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package javax.swing; |
| |
| import java.util.Enumeration; |
| import java.util.Locale; |
| |
| |
| |
| /** |
| * |
| * @author Hans Muller |
| */ |
| class MultiUIDefaults extends UIDefaults |
| { |
| private UIDefaults[] tables; |
| |
| public MultiUIDefaults(UIDefaults[] defaults) { |
| super(); |
| tables = defaults; |
| } |
| |
| public MultiUIDefaults() { |
| super(); |
| tables = new UIDefaults[0]; |
| } |
| |
| |
| 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; |
| } |
| |
| |
| 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; |
| } |
| |
| |
| public int size() { |
| int n = super.size(); |
| for (UIDefaults table : tables) { |
| n += (table != null) ? table.size() : 0; |
| } |
| return n; |
| } |
| |
| |
| public boolean isEmpty() { |
| return size() == 0; |
| } |
| |
| |
| public Enumeration<Object> keys() |
| { |
| Enumeration[] enums = new Enumeration[1 + tables.length]; |
| enums[0] = super.keys(); |
| for(int i = 0; i < tables.length; i++) { |
| UIDefaults table = tables[i]; |
| if (table != null) { |
| enums[i + 1] = table.keys(); |
| } |
| } |
| return new MultiUIDefaultsEnumerator(enums); |
| } |
| |
| |
| public Enumeration<Object> elements() |
| { |
| Enumeration[] enums = new Enumeration[1 + tables.length]; |
| enums[0] = super.elements(); |
| for(int i = 0; i < tables.length; i++) { |
| UIDefaults table = tables[i]; |
| if (table != null) { |
| enums[i + 1] = table.elements(); |
| } |
| } |
| return new MultiUIDefaultsEnumerator(enums); |
| } |
| |
| protected void getUIError(String msg) { |
| if (tables.length > 0) { |
| tables[0].getUIError(msg); |
| } else { |
| super.getUIError(msg); |
| } |
| } |
| |
| private static class MultiUIDefaultsEnumerator implements Enumeration<Object> |
| { |
| Enumeration[] enums; |
| int n = 0; |
| |
| MultiUIDefaultsEnumerator(Enumeration[] enums) { |
| this.enums = enums; |
| } |
| |
| public boolean hasMoreElements() { |
| for(int i = n; i < enums.length; i++) { |
| Enumeration e = enums[i]; |
| if ((e != null) && (e.hasMoreElements())) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public Object nextElement() { |
| for(; n < enums.length; n++) { |
| Enumeration e = enums[n]; |
| if ((e != null) && (e.hasMoreElements())) { |
| return e.nextElement(); |
| } |
| } |
| return null; |
| } |
| } |
| |
| |
| public Object remove(Object key) |
| { |
| Object value = super.remove(key); |
| if (value != null) { |
| return value; |
| } |
| |
| for (UIDefaults table : tables) { |
| value = (table != null) ? table.remove(key) : null; |
| if (value != null) { |
| return value; |
| } |
| } |
| |
| return null; |
| } |
| |
| |
| public void clear() { |
| super.clear(); |
| for (UIDefaults table : tables) { |
| if (table != null) { |
| table.clear(); |
| } |
| } |
| } |
| |
| 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(); |
| } |
| } |