src/main/java/org/apache/commons/sanselan/formats/tiff/constants/TiffDirectoryConstants.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.commons.sanselan.formats.tiff.constants;

public interface TiffDirectoryConstants
{

    public static final int DIRECTORY_TYPE_UNKNOWN = -1;
    public static final int DIRECTORY_TYPE_ROOT = 0;
    public static final int DIRECTORY_TYPE_SUB = 1;
    public static final int DIRECTORY_TYPE_SUB0 = 1;
    public static final int DIRECTORY_TYPE_SUB1 = 2;
    public static final int DIRECTORY_TYPE_SUB2 = 3;
    public static final int DIRECTORY_TYPE_THUMBNAIL = 2;
    public static final int DIRECTORY_TYPE_EXIF = -2;
    //    public static final int DIRECTORY_TYPE_SUB = 5;
    public static final int DIRECTORY_TYPE_GPS = -3;
    public static final int DIRECTORY_TYPE_INTEROPERABILITY = -4;
    public static final int DIRECTORY_TYPE_MAKER_NOTES = -5;
    public static final int DIRECTORY_TYPE_DIR_0 = 0;
    public static final int DIRECTORY_TYPE_DIR_1 = 1;
    public static final int DIRECTORY_TYPE_DIR_2 = 2;
    public static final int DIRECTORY_TYPE_DIR_3 = 3;
    public static final int DIRECTORY_TYPE_DIR_4 = 4;

    public abstract static class ExifDirectoryType
    {
        public final int directoryType;
        public final String name;

        public ExifDirectoryType(final int directoryType, final String name)
        {
            this.directoryType = directoryType;
            this.name = name;
        }

        public abstract boolean isImageDirectory();

        public static class Image extends ExifDirectoryType
        {
            public Image(final int directoryType, final String name)
            {
                super(directoryType, name);
            }

            public boolean isImageDirectory()
            {
                return true;
            }
        }

        public static class Special extends ExifDirectoryType
        {
            public Special(final int directoryType, final String name)
            {
                super(directoryType, name);
            }

            public boolean isImageDirectory()
            {
                return false;
            }
        }

    }

    public static final ExifDirectoryType TIFF_DIRECTORY_IFD0 = new ExifDirectoryType.Image(
            DIRECTORY_TYPE_DIR_0, "IFD0");
    public static final ExifDirectoryType EXIF_DIRECTORY_IFD0 = TIFF_DIRECTORY_IFD0;
    public static final ExifDirectoryType TIFF_DIRECTORY_ROOT = TIFF_DIRECTORY_IFD0;

    public static final ExifDirectoryType TIFF_DIRECTORY_IFD1 = new ExifDirectoryType.Image(
            DIRECTORY_TYPE_DIR_1, "IFD1");
    public static final ExifDirectoryType EXIF_DIRECTORY_IFD1 = TIFF_DIRECTORY_IFD1;

    public static final ExifDirectoryType TIFF_DIRECTORY_IFD2 = new ExifDirectoryType.Image(
            DIRECTORY_TYPE_DIR_2, "IFD2");
    public static final ExifDirectoryType EXIF_DIRECTORY_IFD2 = TIFF_DIRECTORY_IFD2;

    public static final ExifDirectoryType TIFF_DIRECTORY_IFD3 = new ExifDirectoryType.Image(
            DIRECTORY_TYPE_DIR_3, "IFD3");
    public static final ExifDirectoryType EXIF_DIRECTORY_IFD3 = TIFF_DIRECTORY_IFD3;

    public static final ExifDirectoryType EXIF_DIRECTORY_SUB_IFD = TIFF_DIRECTORY_IFD1;
    public static final ExifDirectoryType EXIF_DIRECTORY_SUB_IFD1 = TIFF_DIRECTORY_IFD2;
    public static final ExifDirectoryType EXIF_DIRECTORY_SUB_IFD2 = TIFF_DIRECTORY_IFD3;

    public static final ExifDirectoryType EXIF_DIRECTORY_INTEROP_IFD = new ExifDirectoryType.Special(
            DIRECTORY_TYPE_INTEROPERABILITY, "Interop IFD");
    public static final ExifDirectoryType EXIF_DIRECTORY_MAKER_NOTES = new ExifDirectoryType.Special(
            DIRECTORY_TYPE_MAKER_NOTES, "Maker Notes");
    public static final ExifDirectoryType EXIF_DIRECTORY_EXIF_IFD = new ExifDirectoryType.Special(
            DIRECTORY_TYPE_EXIF, "Exif IFD");
    public static final ExifDirectoryType EXIF_DIRECTORY_GPS = new ExifDirectoryType.Special(
            DIRECTORY_TYPE_GPS, "GPS IFD");

    public static final ExifDirectoryType EXIF_DIRECTORY_UNKNOWN = null;

    public static final ExifDirectoryType EXIF_DIRECTORIES[] = {
            TIFF_DIRECTORY_ROOT, EXIF_DIRECTORY_EXIF_IFD, TIFF_DIRECTORY_IFD0,
            EXIF_DIRECTORY_IFD0, TIFF_DIRECTORY_IFD1, EXIF_DIRECTORY_IFD1,
            TIFF_DIRECTORY_IFD2, EXIF_DIRECTORY_IFD2,
            EXIF_DIRECTORY_INTEROP_IFD, EXIF_DIRECTORY_MAKER_NOTES,
            EXIF_DIRECTORY_SUB_IFD, EXIF_DIRECTORY_SUB_IFD1,
            EXIF_DIRECTORY_SUB_IFD2,
            //EXIF_DIRECTORY_UNKNOWN,
            EXIF_DIRECTORY_GPS,
    };

}