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.png;
  
  import com.drew.imaging.png.PngChunkType;
  import com.drew.lang.annotations.NotNull;
  import com.drew.metadata.Directory;
  
  import java.util.HashMap;
  
  /**
   * @author Drew Noakes https://drewnoakes.com
   */
  @SuppressWarnings("WeakerAccess")
  public class PngDirectory extends Directory
  {
      public static final int TAG_IMAGE_WIDTH = 1;
      public static final int TAG_IMAGE_HEIGHT = 2;
      public static final int TAG_BITS_PER_SAMPLE = 3;
      public static final int TAG_COLOR_TYPE = 4;
      public static final int TAG_COMPRESSION_TYPE = 5;
      public static final int TAG_FILTER_METHOD = 6;
      public static final int TAG_INTERLACE_METHOD = 7;
      public static final int TAG_PALETTE_SIZE = 8;
      public static final int TAG_PALETTE_HAS_TRANSPARENCY = 9;
      public static final int TAG_SRGB_RENDERING_INTENT = 10;
      public static final int TAG_GAMMA = 11;
      public static final int TAG_ICC_PROFILE_NAME = 12;
      public static final int TAG_TEXTUAL_DATA = 13;
      public static final int TAG_LAST_MODIFICATION_TIME = 14;
      public static final int TAG_BACKGROUND_COLOR = 15;
  
      public static final int TAG_PIXELS_PER_UNIT_X = 16;
      public static final int TAG_PIXELS_PER_UNIT_Y = 17;
      public static final int TAG_UNIT_SPECIFIER = 18;
  
      public static final int TAG_SIGNIFICANT_BITS = 19;
  
      @NotNull
      private static final HashMap<Integer, String> _tagNameMap = new HashMap<Integer, String>();
  
      static {
          _tagNameMap.put(TAG_IMAGE_HEIGHT, "Image Height");
          _tagNameMap.put(TAG_IMAGE_WIDTH, "Image Width");
          _tagNameMap.put(TAG_BITS_PER_SAMPLE, "Bits Per Sample");
          _tagNameMap.put(TAG_COLOR_TYPE, "Color Type");
          _tagNameMap.put(TAG_COMPRESSION_TYPE, "Compression Type");
          _tagNameMap.put(TAG_FILTER_METHOD, "Filter Method");
          _tagNameMap.put(TAG_INTERLACE_METHOD, "Interlace Method");
          _tagNameMap.put(TAG_PALETTE_SIZE, "Palette Size");
          _tagNameMap.put(TAG_PALETTE_HAS_TRANSPARENCY, "Palette Has Transparency");
          _tagNameMap.put(TAG_SRGB_RENDERING_INTENT, "sRGB Rendering Intent");
          _tagNameMap.put(TAG_GAMMA, "Image Gamma");
          _tagNameMap.put(TAG_ICC_PROFILE_NAME, "ICC Profile Name");
          _tagNameMap.put(TAG_TEXTUAL_DATA, "Textual Data");
          _tagNameMap.put(TAG_LAST_MODIFICATION_TIME, "Last Modification Time");
          _tagNameMap.put(TAG_BACKGROUND_COLOR, "Background Color");
          _tagNameMap.put(TAG_PIXELS_PER_UNIT_X, "Pixels Per Unit X");
          _tagNameMap.put(TAG_PIXELS_PER_UNIT_Y, "Pixels Per Unit Y");
          _tagNameMap.put(TAG_UNIT_SPECIFIER, "Unit Specifier");
          _tagNameMap.put(TAG_SIGNIFICANT_BITS, "Significant Bits");
      }
  
      private final PngChunkType _pngChunkType;
  
      public PngDirectory(@NotNull PngChunkType pngChunkType)
      {
          _pngChunkType = pngChunkType;
  
          this.setDescriptor(new PngDescriptor(this));
      }
  
      @NotNull
      public PngChunkType getPngChunkType()
      {
          return _pngChunkType;
      }
  
      @Override
      @NotNull
      public String getName()
      {
          return "PNG-" + _pngChunkType.getIdentifier();
      }
  
      @Override
      @NotNull
      protected HashMap<Integer, String> getTagNameMap()
      {
          return _tagNameMap;
      }
  }
  