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.ico;
  
  import com.drew.lang.annotations.NotNull;
  import com.drew.lang.annotations.Nullable;
  import com.drew.metadata.TagDescriptor;
  
  import static com.drew.metadata.ico.IcoDirectory.*;
  
  /**
   * @author Drew Noakes https://drewnoakes.com
   */
  @SuppressWarnings("WeakerAccess")
  public class IcoDescriptor extends TagDescriptor<IcoDirectory>
  {
      public IcoDescriptor(@NotNull IcoDirectory directory)
      {
          super(directory);
      }
  
      @Override
      public String getDescription(int tagType)
      {
          switch (tagType) {
              case TAG_IMAGE_TYPE:
                  return getImageTypeDescription();
              case TAG_IMAGE_WIDTH:
                  return getImageWidthDescription();
              case TAG_IMAGE_HEIGHT:
                  return getImageHeightDescription();
              case TAG_COLOUR_PALETTE_SIZE:
                  return getColourPaletteSizeDescription();
              default:
                  return super.getDescription(tagType);
          }
      }
  
      @Nullable
      public String getImageTypeDescription()
      {
          return getIndexedDescription(TAG_IMAGE_TYPE, 1, "Icon", "Cursor");
      }
  
      @Nullable
      public String getImageWidthDescription()
      {
          Integer width = _directory.getInteger(TAG_IMAGE_WIDTH);
          if (width == null)
              return null;
          return (width == 0 ? 256 : width) + " pixels";
      }
  
      @Nullable
      public String getImageHeightDescription()
      {
          Integer width = _directory.getInteger(TAG_IMAGE_HEIGHT);
          if (width == null)
              return null;
          return (width == 0 ? 256 : width) + " pixels";
      }
  
      @Nullable
      public String getColourPaletteSizeDescription()
      {
          Integer size = _directory.getInteger(TAG_COLOUR_PALETTE_SIZE);
          if (size == null)
              return null;
          return size == 0 ? "No palette" : size + " colour" + (size == 1 ? "" : "s");
      }
  }
  