/**
   * Constructs a RtfChunk based on the content of a Chunk
   *
   * @param doc The RtfDocument that this Chunk belongs to
   * @param chunk The Chunk that this RtfChunk is based on
   */
  public RtfChunk(RtfDocument doc, Chunk chunk) {
    super(doc);

    if (chunk == null) {
      return;
    }

    if (chunk.getAttributes() != null && chunk.getAttributes().get(Chunk.SUBSUPSCRIPT) != null) {
      this.superSubScript = ((Float) chunk.getAttributes().get(Chunk.SUBSUPSCRIPT)).floatValue();
    }
    if (chunk.getAttributes() != null && chunk.getAttributes().get(Chunk.BACKGROUND) != null) {
      this.background =
          new RtfColor(
              this.document, (Color) ((Object[]) chunk.getAttributes().get(Chunk.BACKGROUND))[0]);
    }
    font = new RtfFont(doc, chunk.getFont());
    content = chunk.getContent();
  }
  /**
   * Constructs a <CODE>PdfChunk</CODE>-object.
   *
   * @param chunk the original <CODE>Chunk</CODE>-object
   * @param action the <CODE>PdfAction</CODE> if the <CODE>Chunk</CODE> comes from an <CODE>Anchor
   *     </CODE>
   */
  PdfChunk(Chunk chunk, PdfAction action) {
    thisChunk[0] = this;
    value = chunk.getContent();

    Font f = chunk.getFont();
    float size = f.getSize();
    if (size == Font.UNDEFINED) size = 12;
    baseFont = f.getBaseFont();
    int style = f.getStyle();
    if (style == Font.UNDEFINED) {
      style = Font.NORMAL;
    }
    if (baseFont == null) {
      // translation of the font-family to a PDF font-family
      baseFont = f.getCalculatedBaseFont(false);
    } else {
      // bold simulation
      if ((style & Font.BOLD) != 0)
        attributes.put(
            Chunk.TEXTRENDERMODE,
            new Object[] {
              new Integer(PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE), new Float(size / 30f), null
            });
      // italic simulation
      if ((style & Font.ITALIC) != 0) attributes.put(Chunk.SKEW, new float[] {0, ITALIC_ANGLE});
    }
    font = new PdfFont(baseFont, size);
    // other style possibilities
    HashMap attr = chunk.getAttributes();
    if (attr != null) {
      for (Iterator i = attr.entrySet().iterator(); i.hasNext(); ) {
        Map.Entry entry = (Map.Entry) i.next();
        Object name = entry.getKey();
        if (keysAttributes.containsKey(name)) {
          attributes.put(name, entry.getValue());
        } else if (keysNoStroke.containsKey(name)) {
          noStroke.put(name, entry.getValue());
        }
      }
      if ("".equals(attr.get(Chunk.GENERICTAG))) {
        attributes.put(Chunk.GENERICTAG, chunk.getContent());
      }
    }
    if (f.isUnderlined()) {
      Object obj[] = {null, new float[] {0, 1f / 15, 0, -1f / 3, 0}};
      Object unders[][] = Utilities.addToArray((Object[][]) attributes.get(Chunk.UNDERLINE), obj);
      attributes.put(Chunk.UNDERLINE, unders);
    }
    if (f.isStrikethru()) {
      Object obj[] = {null, new float[] {0, 1f / 15, 0, 1f / 3, 0}};
      Object unders[][] = Utilities.addToArray((Object[][]) attributes.get(Chunk.UNDERLINE), obj);
      attributes.put(Chunk.UNDERLINE, unders);
    }
    if (action != null) attributes.put(Chunk.ACTION, action);
    // the color can't be stored in a PdfFont
    noStroke.put(Chunk.COLOR, f.getColor());
    noStroke.put(Chunk.ENCODING, font.getFont().getEncoding());
    Object obj[] = (Object[]) attributes.get(Chunk.IMAGE);
    if (obj == null) {
      image = null;
    } else {
      attributes.remove(Chunk.HSCALE); // images are scaled in other ways
      image = (Image) obj[0];
      offsetX = ((Float) obj[1]).floatValue();
      offsetY = ((Float) obj[2]).floatValue();
      changeLeading = ((Boolean) obj[3]).booleanValue();
    }
    font.setImage(image);
    Float hs = (Float) attributes.get(Chunk.HSCALE);
    if (hs != null) font.setHorizontalScaling(hs.floatValue());
    encoding = font.getFont().getEncoding();
    splitCharacter = (SplitCharacter) noStroke.get(Chunk.SPLITCHARACTER);
    if (splitCharacter == null) splitCharacter = DefaultSplitCharacter.DEFAULT;
  }