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.annotations.NotNull;
  import com.drew.lang.annotations.Nullable;
  import com.drew.metadata.TagDescriptor;
  
  import static com.drew.metadata.exif.makernotes.PentaxMakernoteDirectory.*;
  
  /**
   * Provides human-readable string representations of tag values stored in a {@link PentaxMakernoteDirectory}.
   * <p>
   * Some information about this makernote taken from here:
   * https://www.ozhiker.com/electronics/pjmt/jpeg_info/pentax_mn.html
   *
   * @author Drew Noakes https://drewnoakes.com
   */
  @SuppressWarnings("WeakerAccess")
  public class PentaxMakernoteDescriptor extends TagDescriptor<PentaxMakernoteDirectory>
  {
      public PentaxMakernoteDescriptor(@NotNull PentaxMakernoteDirectory directory)
      {
          super(directory);
      }
  
      @Override
      @Nullable
      public String getDescription(int tagType)
      {
          switch (tagType) {
              case TAG_CAPTURE_MODE:
                  return getCaptureModeDescription();
              case TAG_QUALITY_LEVEL:
                  return getQualityLevelDescription();
              case TAG_FOCUS_MODE:
                  return getFocusModeDescription();
              case TAG_FLASH_MODE:
                  return getFlashModeDescription();
              case TAG_WHITE_BALANCE:
                  return getWhiteBalanceDescription();
              case TAG_DIGITAL_ZOOM:
                  return getDigitalZoomDescription();
              case TAG_SHARPNESS:
                  return getSharpnessDescription();
              case TAG_CONTRAST:
                  return getContrastDescription();
              case TAG_SATURATION:
                  return getSaturationDescription();
              case TAG_ISO_SPEED:
                  return getIsoSpeedDescription();
              case TAG_COLOUR:
                  return getColourDescription();
              default:
                  return super.getDescription(tagType);
          }
      }
  
      @Nullable
      public String getColourDescription()
      {
          return getIndexedDescription(TAG_COLOUR, 1, "Normal", "Black & White", "Sepia");
      }
  
      @Nullable
      public String getIsoSpeedDescription()
      {
          Integer value = _directory.getInteger(TAG_ISO_SPEED);
          if (value == null)
              return null;
          switch (value) {
              // TODO there must be other values which aren't catered for here
              case 10: return "ISO 100";
              case 16: return "ISO 200";
              case 100: return "ISO 100";
              case 200: return "ISO 200";
              default: return "Unknown (" + value + ")";
          }
      }
  
      @Nullable
      public String getSaturationDescription()
      {
          return getIndexedDescription(TAG_SATURATION, "Normal", "Low", "High");
      }
  
      @Nullable
      public String getContrastDescription()
      {
          return getIndexedDescription(TAG_CONTRAST, "Normal", "Low", "High");
      }
  
      @Nullable
      public String getSharpnessDescription()
      {
          return getIndexedDescription(TAG_SHARPNESS, "Normal", "Soft", "Hard");
      }
  
      @Nullable
      public String getDigitalZoomDescription()
      {
          Float value = _directory.getFloatObject(TAG_DIGITAL_ZOOM);
          if (value == null)
              return null;
          if (value == 0)
              return "Off";
          return Float.toString(value);
      }
  
      @Nullable
      public String getWhiteBalanceDescription()
      {
          return getIndexedDescription(TAG_WHITE_BALANCE,
              "Auto", "Daylight", "Shade", "Tungsten", "Fluorescent", "Manual");
      }
  
      @Nullable
      public String getFlashModeDescription()
      {
          return getIndexedDescription(TAG_FLASH_MODE,
              1, "Auto", "Flash On", null, "Flash Off", null, "Red-eye Reduction");
      }
  
      @Nullable
      public String getFocusModeDescription()
      {
          return getIndexedDescription(TAG_FOCUS_MODE, 2, "Custom", "Auto");
      }
  
      @Nullable
      public String getQualityLevelDescription()
      {
          return getIndexedDescription(TAG_QUALITY_LEVEL, "Good", "Better", "Best");
      }
  
      @Nullable
      public String getCaptureModeDescription()
      {
          return getIndexedDescription(TAG_CAPTURE_MODE,
              "Auto", "Night-scene", "Manual", null, "Multiple");
      }
  }
  