Examples of com.itextpdf.text.pdf.PdfDictionary

com.itextpdf.text.pdf.PdfDictionary
PdfDictionary is the Pdf dictionary object.
A dictionary is an associative table containing pairs of objects. The first element of each pair is called the key and the second element is called the value. Unlike dictionaries in the PostScript language, a key must be a PdfName. A value can be any kind of PdfObject, including a dictionary. A dictionary is generally used to collect and tie together the attributes of a complex object, with each key-value pair specifying the name and value of an attribute.
A dictionary is represented by two left angle brackets (<<), followed by a sequence of key-value pairs, followed by two right angle brackets (>>).
This object is described in the 'Portable Document Format Reference Manual version 1.7' section 3.2.6 (page 59-60).
@see PdfObject @see PdfName @see BadPdfFormatException

      throws IOException {
    this.reader = reader;
        OutputStreamWriter outs = new OutputStreamWriter(os, charset);
    out = new PrintWriter(outs);
    // get the StructTreeRoot from the root object
    PdfDictionary catalog = reader.getCatalog();
    PdfDictionary struct = catalog.getAsDict(PdfName.STRUCTTREEROOT);
    if (struct == null)
      throw new IOException(MessageLocalization.getComposedMessage("no.structtreeroot.found"));
    // Inspect the child or children of the StructTreeRoot
    inspectChild(struct.getDirectObject(PdfName.K));
    out.flush();
    out.close();
  }

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            String tagN = PdfName.decodeName(s.toString());
      String tag = fixTagName(tagN);
      out.print("<");
      out.print(tag);
      out.print(">");
      PdfDictionary dict = k.getAsDict(PdfName.PG);
      if (dict != null)
        parseTag(tagN, k.getDirectObject(PdfName.K), dict);
      inspectChild(k.getDirectObject(PdfName.K));
      out.print("</");
      out.print(tag);

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      }
    }
    // if the identifier is a dictionary, we get the resources from the
    // dictionary
    else if (object instanceof PdfDictionary) {
      PdfDictionary mcr = (PdfDictionary) object;
      parseTag(tag, mcr.getDirectObject(PdfName.MCID), mcr
          .getAsDict(PdfName.PG));
    }
  }

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    /**
     * Displays an XObject using the registered handler for this XObject's subtype
     * @param xobjectName the name of the XObject to retrieve from the resource dictionary
     */
    private void displayXObject(PdfName xobjectName) throws IOException {
        PdfDictionary xobjects = resources.getAsDict(PdfName.XOBJECT);
        PdfObject xobject = xobjects.getDirectObject(xobjectName);
        PdfStream xobjectStream = (PdfStream)xobject;


        PdfName subType = xobjectStream.getAsName(PdfName.SUBTYPE);
        if (xobject.isStream()){
            XObjectDoHandler handler = xobjectDoHandlers.get(subType);
            if (handler == null)
                handler = xobjectDoHandlers.get(PdfName.DEFAULT);
            handler.handleXObject(this, xobjectStream, xobjects.getAsIndirectObject(xobjectName));
        } else {
            throw new IllegalStateException(MessageLocalization.getComposedMessage("XObject.1.is.not.a.stream", xobjectName));
        }


    }

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            ArrayList<PdfObject> operands = new ArrayList<PdfObject>();
            while (ps.parse(operands).size() > 0){
                PdfLiteral operator = (PdfLiteral)operands.get(operands.size()-1);
                if ("BI".equals(operator.toString())){
                    // we don't call invokeOperator for embedded images - this is one area of the PDF spec that is particularly nasty and inconsistent
                    PdfDictionary colorSpaceDic = resources.getAsDict(PdfName.COLORSPACE);
                    ImageRenderInfo renderInfo = ImageRenderInfo.createdForEmbeddedImage(gs().ctm, InlineImageUtils.parseInlineImage(ps, colorSpaceDic));
                    renderListener.renderImage(renderInfo);
                } else {
                    invokeOperator(operator, operands);
                }

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        }


        @Override
        public PdfObject getDirectObject(PdfName key) {
            for (int i = resourcesStack.size() - 1; i >= 0; i--){
                PdfDictionary subResource = resourcesStack.get(i);
                if (subResource != null){
                    PdfObject obj =  subResource.getDirectObject(key);
                    if (obj != null) return obj;
                }
            }
            return super.getDirectObject(key); // shouldn't be necessary, but just in case we've done something crazy
        }

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    private static class SetTextFont implements ContentOperator{
        public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList<PdfObject> operands) {
            PdfName fontResourceName = (PdfName)operands.get(0);
            float size = ((PdfNumber)operands.get(1)).floatValue();


            PdfDictionary fontsDictionary = processor.resources.getAsDict(PdfName.FONT);
            CMapAwareDocumentFont font = processor.getFont((PRIndirectReference)fontsDictionary.get(fontResourceName));


            processor.gs().font = font;
            processor.gs().fontSize = size;


        }

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     */
    private static class ProcessGraphicsStateResource implements ContentOperator{
        public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList<PdfObject> operands) {


            PdfName dictionaryName = (PdfName)operands.get(0);
            PdfDictionary extGState = processor.resources.getAsDict(PdfName.EXTGSTATE);
            if (extGState == null)
                throw new IllegalArgumentException(MessageLocalization.getComposedMessage("resources.do.not.contain.extgstate.entry.unable.to.process.operator.1", operator));
            PdfDictionary gsDic = extGState.getAsDict(dictionaryName);
            if (gsDic == null)
                throw new IllegalArgumentException(MessageLocalization.getComposedMessage("1.is.an.unknown.graphics.state.dictionary", dictionaryName));


            // at this point, all we care about is the FONT entry in the GS dictionary
            PdfArray fontParameter = gsDic.getAsArray(PdfName.FONT);
            if (fontParameter != null){
                CMapAwareDocumentFont font = processor.getFont((PRIndirectReference)fontParameter.getPdfObject(0));
                float size = fontParameter.getAsNumber(1).floatValue();


                processor.gs().font = font;

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    private static class BeginMarkedContent implements ContentOperator{


    public void invoke(PdfContentStreamProcessor processor,
        PdfLiteral operator, ArrayList<PdfObject> operands)
        throws Exception {
      processor.beginMarkedContent((PdfName)operands.get(0), new PdfDictionary());
    }

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     */
    private static class FormXObjectDoHandler implements XObjectDoHandler{


        public void handleXObject(PdfContentStreamProcessor processor, PdfStream stream, PdfIndirectReference ref) {


            final PdfDictionary resources = stream.getAsDict(PdfName.RESOURCES);


            // we read the content bytes up here so if it fails we don't leave the graphics state stack corrupted
            // this is probably not necessary (if we fail on this, probably the entire content stream processing
            // operation should be rejected
            byte[] contentBytes;

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