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.exif.makernotes;
  
  import com.drew.lang.Rational;
  import com.drew.lang.annotations.NotNull;
  import com.drew.lang.annotations.Nullable;
  import com.drew.metadata.TagDescriptor;
  
  import static com.drew.metadata.exif.makernotes.NikonType1MakernoteDirectory.*;
  
  /**
   * Provides human-readable string representations of tag values stored in a {@link NikonType1MakernoteDirectory}.
   * <p>
   * Type-1 is for E-Series cameras prior to (not including) E990.  For example: E700, E800, E900,
   * E900S, E910, E950.
   * <p>
   * Makernote starts from ASCII string "Nikon". Data format is the same as IFD, but it starts from
   * offset 0x08. This is the same as Olympus except start string. Example of actual data
   * structure is shown below.
   * <pre><code>
   * :0000: 4E 69 6B 6F 6E 00 01 00-05 00 02 00 02 00 06 00 Nikon...........
   * :0010: 00 00 EC 02 00 00 03 00-03 00 01 00 00 00 06 00 ................
   * </code></pre>
   *
   * @author Drew Noakes https://drewnoakes.com
   */
  @SuppressWarnings("WeakerAccess")
  public class NikonType1MakernoteDescriptor extends TagDescriptor<NikonType1MakernoteDirectory>
  {
      public NikonType1MakernoteDescriptor(@NotNull NikonType1MakernoteDirectory directory)
      {
          super(directory);
      }
  
      @Override
      @Nullable
      public String getDescription(int tagType)
      {
          switch (tagType) {
              case TAG_QUALITY:
                  return getQualityDescription();
              case TAG_COLOR_MODE:
                  return getColorModeDescription();
              case TAG_IMAGE_ADJUSTMENT:
                  return getImageAdjustmentDescription();
              case TAG_CCD_SENSITIVITY:
                  return getCcdSensitivityDescription();
              case TAG_WHITE_BALANCE:
                  return getWhiteBalanceDescription();
              case TAG_FOCUS:
                  return getFocusDescription();
              case TAG_DIGITAL_ZOOM:
                  return getDigitalZoomDescription();
              case TAG_CONVERTER:
                  return getConverterDescription();
              default:
                  return super.getDescription(tagType);
          }
      }
  
      @Nullable
      public String getConverterDescription()
      {
          return getIndexedDescription(TAG_CONVERTER, "None", "Fisheye converter");
      }
  
      @Nullable
      public String getDigitalZoomDescription()
      {
          Rational value = _directory.getRational(TAG_DIGITAL_ZOOM);
          return value == null
              ? null
              : value.getNumerator() == 0
                  ? "No digital zoom"
                  : value.toSimpleString(true) + "x digital zoom";
      }
  
      @Nullable
      public String getFocusDescription()
      {
          Rational value = _directory.getRational(TAG_FOCUS);
          return value == null
              ? null
              : value.getNumerator() == 1 && value.getDenominator() == 0
                  ? "Infinite"
                  : value.toSimpleString(true);
      }
  
      @Nullable
      public String getWhiteBalanceDescription()
      {
          return getIndexedDescription(TAG_WHITE_BALANCE,
              "Auto",
              "Preset",
              "Daylight",
              "Incandescence",
              "Florescence",
              "Cloudy",
              "SpeedLight"
          );
      }
  
      @Nullable
      public String getCcdSensitivityDescription()
      {
          return getIndexedDescription(TAG_CCD_SENSITIVITY,
              "ISO80",
              null,
              "ISO160",
              null,
              "ISO320",
              "ISO100"
          );
      }
  
      @Nullable
      public String getImageAdjustmentDescription()
      {
          return getIndexedDescription(TAG_IMAGE_ADJUSTMENT,
              "Normal",
              "Bright +",
              "Bright -",
              "Contrast +",
              "Contrast -"
          );
      }
  
      @Nullable
      public String getColorModeDescription()
      {
          return getIndexedDescription(TAG_COLOR_MODE,
              1,
              "Color",
              "Monochrome"
          );
      }
  
      @Nullable
      public String getQualityDescription()
      {
          return getIndexedDescription(TAG_QUALITY,
              1,
              "VGA Basic",
              "VGA Normal",
              "VGA Fine",
              "SXGA Basic",
              "SXGA Normal",
              "SXGA Fine"
          );
      }
  }
  