JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2005, 2016, 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.
 */
package javax.imageio.plugins.tiff;

import java.util.ArrayList;
import java.util.List;

/**
 * A class representing the extra tags found in a
 * <a href="http://tools.ietf.org/html/rfc2306.html">TIFF-F</a> (RFC 2036) file.
 *
 * @since 9
 */
public final class FaxTIFFTagSet extends TIFFTagSet {

    private static FaxTIFFTagSet theInstance = null;

    /** Tag indicating the number of bad fax lines (type SHORT or LONG). */
    public static final int TAG_BAD_FAX_LINES = 326;

    /**
     * Tag indicating the number of lines of clean fax data (type
     * SHORT).
     *
     * @see #CLEAN_FAX_DATA_NO_ERRORS
     * @see #CLEAN_FAX_DATA_ERRORS_CORRECTED
     * @see #CLEAN_FAX_DATA_ERRORS_UNCORRECTED
     */
    public static final int TAG_CLEAN_FAX_DATA = 327;

    /**
     * A value to be used with the "CleanFaxData" tag.
     *
     * @see #TAG_CLEAN_FAX_DATA
     */
    public static final int CLEAN_FAX_DATA_NO_ERRORS = 0;

    /**
     * A value to be used with the "CleanFaxData" tag.
     *
     * @see #TAG_CLEAN_FAX_DATA
     */
    public static final int CLEAN_FAX_DATA_ERRORS_CORRECTED = 1;

    /**
     * A value to be used with the "CleanFaxData" tag.
     *
     * @see #TAG_CLEAN_FAX_DATA
     */
    public static final int CLEAN_FAX_DATA_ERRORS_UNCORRECTED = 2;

    /**
     * Tag indicating the number of consecutive bad lines (type
     * SHORT or LONG).
     */
    public static final int TAG_CONSECUTIVE_BAD_LINES = 328;

    static class BadFaxLines extends TIFFTag {

        public BadFaxLines() {
            super("BadFaxLines",
                  TAG_BAD_FAX_LINES,
                  1 << TIFF_SHORT |
                  1 << TIFF_LONG,
                  1);
        }
    }

    static class CleanFaxData extends TIFFTag {

        public CleanFaxData() {
            super("CleanFaxData",
                  TAG_CLEAN_FAX_DATA,
                  1 << TIFF_SHORT,
                  1);

            addValueName(CLEAN_FAX_DATA_NO_ERRORS,
                         "No errors");
            addValueName(CLEAN_FAX_DATA_ERRORS_CORRECTED,
                         "Errors corrected");
            addValueName(CLEAN_FAX_DATA_ERRORS_UNCORRECTED,
                         "Errors uncorrected");
        }
    }

    static class ConsecutiveBadFaxLines extends TIFFTag {

        public ConsecutiveBadFaxLines() {
            super("ConsecutiveBadFaxLines",
                  TAG_CONSECUTIVE_BAD_LINES,
                  1 << TIFF_SHORT |
                  1 << TIFF_LONG,
                  1);
        }
    }

    private static List<TIFFTag> tags;

    private static void initTags() {
        tags = new ArrayList<TIFFTag>(42);

        tags.add(new FaxTIFFTagSet.BadFaxLines());
        tags.add(new FaxTIFFTagSet.CleanFaxData());

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