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.mov.atoms;
  
  import com.drew.lang.SequentialReader;
  import com.drew.lang.annotations.NotNull;
  import com.drew.metadata.mov.media.QuickTimeSubtitleDirectory;
  
  import java.io.IOException;
  
  /**
   * https://developer.apple.com/library/content/documentation/QuickTime/QTFF/QTFFChap3/qtff3.html#//apple_ref/doc/uid/TP40000939-CH205-SW80
   *
   * @author Payton Garland
   */
  public class SubtitleSampleDescriptionAtom extends SampleDescriptionAtom<SubtitleSampleDescriptionAtom.SubtitleSampleDescription>
  {
      public SubtitleSampleDescriptionAtom(SequentialReader reader, Atom atom) throws IOException
      {
          super(reader, atom);
      }
  
      @NotNull
      @Override
      SubtitleSampleDescription getSampleDescription(SequentialReader reader) throws IOException
      {
          return new SubtitleSampleDescription(reader);
      }
  
      static class SubtitleSampleDescription extends SampleDescription
      {
          int displayFlags;
          long defaultTextBox;
          int fontIdentifier;
          int fontFace;
          int fontSize;
          int[] foregroundColor;
  
          public SubtitleSampleDescription(SequentialReader reader) throws IOException
          {
              super(reader);
  
              displayFlags = reader.getInt32();
              reader.skip(1); // Reserved
              reader.skip(1); // Reserved
              reader.skip(4); // Reserved
              defaultTextBox = reader.getInt64();
              reader.skip(4); // Reserved
              fontIdentifier = reader.getInt16();
              fontFace = reader.getInt8();
              fontSize = reader.getInt8();
              foregroundColor = new int[]{reader.getUInt16(), reader.getUInt16(), reader.getUInt16()};
              // font table atom 'ftab' not currently parsed
          }
      }
  
      public void addMetadata(QuickTimeSubtitleDirectory directory)
      {
          if (sampleDescriptions.size() == 0) {
              return;
          }
  
          SubtitleSampleDescription description = sampleDescriptions.get(0);
  
          directory.setBoolean(QuickTimeSubtitleDirectory.TAG_VERTICAL_PLACEMENT, (description.displayFlags & 0x20000000) == 0x20000000);
          directory.setBoolean(QuickTimeSubtitleDirectory.TAG_SOME_SAMPLES_FORCED, (description.displayFlags & 0x40000000) == 0x40000000);
          directory.setBoolean(QuickTimeSubtitleDirectory.TAG_ALL_SAMPLES_FORCED, (description.displayFlags & 0xC0000000) == 0xC0000000);
  
          directory.setLong(QuickTimeSubtitleDirectory.TAG_DEFAULT_TEXT_BOX, description.defaultTextBox);
          directory.setInt(QuickTimeSubtitleDirectory.TAG_FONT_IDENTIFIER, description.fontIdentifier);
          switch (description.fontFace) {
              case (1):
                  directory.setString(QuickTimeSubtitleDirectory.TAG_FONT_FACE, "Bold");
                  break;
              case (2):
                  directory.setString(QuickTimeSubtitleDirectory.TAG_FONT_FACE, "Italic");
                  break;
              case (4):
                  directory.setString(QuickTimeSubtitleDirectory.TAG_FONT_FACE, "Underline");
                  break;
          }
          directory.setInt(QuickTimeSubtitleDirectory.TAG_FONT_SIZE, description.fontSize);
          directory.setIntArray(QuickTimeSubtitleDirectory.TAG_FOREGROUND_COLOR, description.foregroundColor);
      }
  }
  