content: /*
   * Copyright 2002-2019 Drew Noakes and contributors
   *
   *    Licensed 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
   *
   *        https://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.
   *
   * More information about this project is available at:
   *
   *    https://drewnoakes.com/code/exif/
   *    https://github.com/drewnoakes/metadata-extractor
   */
  package com.drew.metadata.jfif;
  
  import com.drew.lang.annotations.NotNull;
  import com.drew.metadata.Directory;
  import com.drew.metadata.MetadataException;
  
  import java.util.HashMap;
  
  /**
   * Directory of tags and values for the SOF0 Jfif segment.  This segment holds basic metadata about the image.
   *
   * @author Yuri Binev, Drew Noakes
   */
  @SuppressWarnings("WeakerAccess")
  public class JfifDirectory extends Directory
  {
      public static final int TAG_VERSION = 5;
      /** Units for pixel density fields.  One of None, Pixels per Inch, Pixels per Centimetre. */
      public static final int TAG_UNITS = 7;
      public static final int TAG_RESX = 8;
      public static final int TAG_RESY = 10;
      public static final int TAG_THUMB_WIDTH = 12;
      public static final int TAG_THUMB_HEIGHT = 13;
  
      @NotNull
      private static final HashMap<Integer, String> _tagNameMap = new HashMap<Integer, String>();
  
      static
      {
          _tagNameMap.put(TAG_VERSION, "Version");
          _tagNameMap.put(TAG_UNITS, "Resolution Units");
          _tagNameMap.put(TAG_RESY, "Y Resolution");
          _tagNameMap.put(TAG_RESX, "X Resolution");
          _tagNameMap.put(TAG_THUMB_WIDTH, "Thumbnail Width Pixels");
          _tagNameMap.put(TAG_THUMB_HEIGHT, "Thumbnail Height Pixels");
      }
  
      public JfifDirectory()
      {
          this.setDescriptor(new JfifDescriptor(this));
      }
  
      @Override
      @NotNull
      public String getName()
      {
          return "JFIF";
      }
  
      @Override
      @NotNull
      protected HashMap<Integer, String> getTagNameMap()
      {
          return _tagNameMap;
      }
  
      public int getVersion() throws MetadataException
      {
          return getInt(JfifDirectory.TAG_VERSION);
      }
  
      public int getResUnits() throws MetadataException
      {
          return getInt(JfifDirectory.TAG_UNITS);
      }
  
      /**
       * @deprecated use {@link #getResY} instead.
       */
      @Deprecated
      public int getImageWidth() throws MetadataException
      {
          return getInt(JfifDirectory.TAG_RESY);
      }
  
      public int getResY() throws MetadataException
      {
          return getInt(JfifDirectory.TAG_RESY);
      }
  
      /**
       * @deprecated use {@link #getResX} instead.
       */
      @Deprecated
      public int getImageHeight() throws MetadataException
      {
          return getInt(JfifDirectory.TAG_RESX);
      }
  
      public int getResX() throws MetadataException
      {
          return getInt(JfifDirectory.TAG_RESX);
      }
  }
  