Showing the changes to java/pkg/sun/font/AttributeMap.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,101 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 2004, 2005, 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 | /* | ||
| 27 | What is the dead simplest thing to do? | ||
| 28 | Extend AbstractMap and don't optimize for anything. | ||
| 29 | |||
| 30 | The only new api is 'getValues()' which returns the values struct as | ||
| 31 | long as no map api has been called. If any map api is called, | ||
| 32 | create a real map and forward to it, and nuke values because of the | ||
| 33 | possibility that the map has been changed. This is easier than | ||
| 34 | trying to create a map that only clears values if the map has been | ||
| 35 | changed, or implementing the map API directly on top of the values | ||
| 36 | struct. We can always do that later if need be. | ||
| 37 | */ | ||
| 38 | |||
| 39 | package sun.font; | ||
| 40 | |||
| 41 | import java.awt.Paint; | ||
| 42 | import java.awt.font.GraphicAttribute; | ||
| 43 | import java.awt.font.NumericShaper; | ||
| 44 | import java.awt.font.TextAttribute; | ||
| 45 | import java.awt.font.TransformAttribute; | ||
| 46 | import java.awt.geom.AffineTransform; | ||
| 47 | import java.awt.im.InputMethodHighlight; | ||
| 48 | import java.text.AttributedCharacterIterator.Attribute; | ||
| 49 | import java.util.AbstractMap; | ||
| 50 | import java.util.HashMap; | ||
| 51 | import java.util.Map; | ||
| 52 | import java.util.Set; | ||
| 53 | import java.util.Map.Entry; | ||
| 54 | |||
| 55 | import static sun.font.AttributeValues.*; | ||
| 56 | |||
| 57 | public final class AttributeMap extends AbstractMap<TextAttribute, Object> { | ||
| 58 | private AttributeValues values; | ||
| 59 | private Map<TextAttribute, Object> delegateMap; | ||
| 60 | |||
| 61 | public AttributeMap(AttributeValues values) { | ||
| 62 | this.values = values; | ||
| 63 | } | ||
| 64 | |||
| 65 | public Set<Entry<TextAttribute, Object>> entrySet() { | ||
| 66 | return delegate().entrySet(); | ||
| 67 | } | ||
| 68 | |||
| 69 | public Object put(TextAttribute key, Object value) { | ||
| 70 | return delegate().put(key, value); | ||
| 71 | } | ||
| 72 | |||
| 73 | // internal API | ||
| 74 | public AttributeValues getValues() { | ||
| 75 | return values; | ||
| 76 | } | ||
| 77 | |||
| 78 | private static boolean first = false; // debug | ||
| 79 | private Map<TextAttribute, Object> delegate() { | ||
| 80 | if (delegateMap == null) { | ||
| 81 | if (first) { | ||
| 82 | first = false; | ||
| 83 | Thread.dumpStack(); | ||
| 84 | } | ||
| 85 | delegateMap = values.toMap(new HashMap<TextAttribute, Object>(27)); | ||
| 86 | |||
| 87 | // nuke values, once map is accessible it might be mutated and values would | ||
| 88 | // no longer reflect its contents | ||
| 89 | values = null; | ||
| 90 | } | ||
| 91 | |||
| 92 | return delegateMap; | ||
| 93 | } | ||
| 94 | |||
| 95 | public String toString() { | ||
| 96 | if (values != null) { | ||
| 97 | return "map of " + values.toString(); | ||
| 98 | } | ||
| 99 | return super.toString(); | ||
| 100 | } | ||
| 101 | } | ||