| /* |
| * Copyright (c) 2004, 2005, 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. |
| */ |
| |
| /* |
| What is the dead simplest thing to do? |
| Extend AbstractMap and don't optimize for anything. |
| |
| The only new api is 'getValues()' which returns the values struct as |
| long as no map api has been called. If any map api is called, |
| create a real map and forward to it, and nuke values because of the |
| possibility that the map has been changed. This is easier than |
| trying to create a map that only clears values if the map has been |
| changed, or implementing the map API directly on top of the values |
| struct. We can always do that later if need be. |
| */ |
| |
| package sun.font; |
| |
| import java.awt.Paint; |
| import java.awt.font.GraphicAttribute; |
| import java.awt.font.NumericShaper; |
| import java.awt.font.TextAttribute; |
| import java.awt.font.TransformAttribute; |
| import java.awt.geom.AffineTransform; |
| import java.awt.im.InputMethodHighlight; |
| import java.text.AttributedCharacterIterator.Attribute; |
| import java.util.AbstractMap; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.Map.Entry; |
| |
| import static sun.font.AttributeValues.*; |
| |
| public final class AttributeMap extends AbstractMap<TextAttribute, Object> { |
| private AttributeValues values; |
| private Map<TextAttribute, Object> delegateMap; |
| |
| public AttributeMap(AttributeValues values) { |
| this.values = values; |
| } |
| |
| public Set<Entry<TextAttribute, Object>> entrySet() { |
| return delegate().entrySet(); |
| } |
| |
| public Object put(TextAttribute key, Object value) { |
| return delegate().put(key, value); |
| } |
| |
| // internal API |
| public AttributeValues getValues() { |
| return values; |
| } |
| |
| private static boolean first = false; // debug |
| private Map<TextAttribute, Object> delegate() { |
| if (delegateMap == null) { |
| if (first) { |
| first = false; |
| Thread.dumpStack(); |
| } |
| delegateMap = values.toMap(new HashMap<TextAttribute, Object>(27)); |
| |
| // nuke values, once map is accessible it might be mutated and values would |
| // no longer reflect its contents |
| values = null; |
| } |
| |
| return delegateMap; |
| } |
| |
| public String toString() { |
| if (values != null) { |
| return "map of " + values.toString(); |
| } |
| return super.toString(); |
| } |
| } |