141 lines
4.7 KiB
Java
141 lines
4.7 KiB
Java
/*
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* Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.awt;
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import java.nio.CharBuffer;
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import java.nio.ByteBuffer;
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import java.nio.charset.*;
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//This class delegates all invokes to the charset "javaCs" if
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//its subclasses do not provide their own en/decode solution.
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public class AWTCharset extends Charset {
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protected Charset awtCs;
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protected Charset javaCs;
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public AWTCharset(String awtCsName, Charset javaCs) {
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super(awtCsName, null);
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this.javaCs = javaCs;
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this.awtCs = this;
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}
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public boolean contains(Charset cs) {
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if (javaCs == null) return false;
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return javaCs.contains(cs);
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}
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public CharsetEncoder newEncoder() {
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if (javaCs == null)
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throw new Error("Encoder is not supported by this Charset");
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return new Encoder(javaCs.newEncoder());
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}
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public CharsetDecoder newDecoder() {
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if (javaCs == null)
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throw new Error("Decoder is not supported by this Charset");
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return new Decoder(javaCs.newDecoder());
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}
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public class Encoder extends CharsetEncoder {
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protected CharsetEncoder enc;
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protected Encoder () {
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this(javaCs.newEncoder());
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}
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protected Encoder (CharsetEncoder enc) {
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super(awtCs,
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enc.averageBytesPerChar(),
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enc.maxBytesPerChar());
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this.enc = enc;
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}
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public boolean canEncode(char c) {
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return enc.canEncode(c);
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}
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public boolean canEncode(CharSequence cs) {
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return enc.canEncode(cs);
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}
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protected CoderResult encodeLoop(CharBuffer src, ByteBuffer dst) {
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return enc.encode(src, dst, true);
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}
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protected CoderResult implFlush(ByteBuffer out) {
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return enc.flush(out);
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}
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protected void implReset() {
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enc.reset();
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}
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protected void implReplaceWith(byte[] newReplacement) {
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if (enc != null)
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enc.replaceWith(newReplacement);
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}
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protected void implOnMalformedInput(CodingErrorAction newAction) {
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enc.onMalformedInput(newAction);
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}
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protected void implOnUnmappableCharacter(CodingErrorAction newAction) {
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enc.onUnmappableCharacter(newAction);
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}
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public boolean isLegalReplacement(byte[] repl) {
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return true;
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}
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}
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public class Decoder extends CharsetDecoder {
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protected CharsetDecoder dec;
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private String nr;
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protected Decoder () {
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this(javaCs.newDecoder());
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}
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protected Decoder (CharsetDecoder dec) {
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super(awtCs,
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dec.averageCharsPerByte(),
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dec.maxCharsPerByte());
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this.dec = dec;
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}
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protected CoderResult decodeLoop(ByteBuffer src, CharBuffer dst) {
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return dec.decode(src, dst, true);
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}
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ByteBuffer fbb = ByteBuffer.allocate(0);
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protected CoderResult implFlush(CharBuffer out) {
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dec.decode(fbb, out, true);
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return dec.flush(out);
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}
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protected void implReset() {
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dec.reset();
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}
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protected void implReplaceWith(String newReplacement) {
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if (dec != null)
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dec.replaceWith(newReplacement);
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}
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protected void implOnMalformedInput(CodingErrorAction newAction) {
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dec.onMalformedInput(newAction);
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}
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protected void implOnUnmappableCharacter(CodingErrorAction newAction) {
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dec.onUnmappableCharacter(newAction);
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}
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}
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}
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