Examples of com.lowagie.text.pdf.PdfObject

com.lowagie.text.pdf.PdfObject
PdfObject is the abstract superclass of all PDF objects.
PDF supports seven basic types of objects: Booleans, numbers, strings, names, arrays, dictionaries and streams. In addition, PDF provides a null object. Objects may be labeled so that they can be referred to by other objects.
All these basic PDF objects are described in the 'Portable Document Format Reference Manual version 1.3' Chapter 4 (pages 37-54). @see PdfNull @see PdfBoolean @see PdfNumber @see PdfString @see PdfName @see PdfArray @see PdfDictionary @see PdfStream @see PdfIndirectReference

   * Gets the object that is shown in a row.
   * @param rowIndex  the row number containing the object
   * @return  a PDF object
   */
  protected String getObjectDescriptionByRow(int rowIndex) {
    PdfObject object = objects.getObjectByIndex(rowIndex);
    if (object instanceof PdfNull)
      return "Indirect object";
    return object.toString();
  }

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   */
  public void expandNode(PdfObjectTreeNode node) {
    if (node.getChildCount() > 0) {
      return;
    }
    PdfObject object = node.getPdfObject();
    PdfObjectTreeNode leaf;
    switch (object.type()) {
    case PdfObject.INDIRECT:
      PdfIndirectReference ref = (PdfIndirectReference)object;
      leaf = getNode(ref.getNumber());
      addNodes(node, leaf);
      if (leaf instanceof PdfPagesTreeNode)

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                dic.put(PdfName.GAMMA, new PdfNumber(gamma));
                dic.put(PdfName.WHITEPOINT, new PdfLiteral("[1 1 1]"));
                array.add(dic);
            }
            else {
                PdfObject wp = new PdfLiteral("[1 1 1]");
                array.add(PdfName.CALRGB);
                if (gamma != 1f) {
                    PdfArray gm = new PdfArray();
                    PdfNumber n = new PdfNumber(gamma);
                    gm.add(n);

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  public static PdfViewerPreferencesImp getViewerPreferences(PdfDictionary catalog) {
    PdfViewerPreferencesImp preferences = new PdfViewerPreferencesImp();
    int prefs = 0;
    PdfName name = null;
    // page layout
    PdfObject obj = PdfReader.getPdfObjectRelease(catalog.get(PdfName.PAGELAYOUT));
    if (obj != null && obj.isName()) {
      name = (PdfName) obj;
      if (name.equals(PdfName.SINGLEPAGE))
        prefs |= PdfWriter.PageLayoutSinglePage;
      else if (name.equals(PdfName.ONECOLUMN))
        prefs |= PdfWriter.PageLayoutOneColumn;
      else if (name.equals(PdfName.TWOCOLUMNLEFT))
        prefs |= PdfWriter.PageLayoutTwoColumnLeft;
      else if (name.equals(PdfName.TWOCOLUMNRIGHT))
        prefs |= PdfWriter.PageLayoutTwoColumnRight;
      else if (name.equals(PdfName.TWOPAGELEFT))
        prefs |= PdfWriter.PageLayoutTwoPageLeft;
      else if (name.equals(PdfName.TWOPAGERIGHT))
        prefs |= PdfWriter.PageLayoutTwoPageRight;
    }
    // page mode
    obj = PdfReader.getPdfObjectRelease(catalog.get(PdfName.PAGEMODE));
    if (obj != null && obj.isName()) {
      name = (PdfName) obj;
      if (name.equals(PdfName.USENONE))
        prefs |= PdfWriter.PageModeUseNone;
      else if (name.equals(PdfName.USEOUTLINES))
        prefs |= PdfWriter.PageModeUseOutlines;
      else if (name.equals(PdfName.USETHUMBS))
        prefs |= PdfWriter.PageModeUseThumbs;
      else if (name.equals(PdfName.FULLSCREEN))
        prefs |= PdfWriter.PageModeFullScreen;
      else if (name.equals(PdfName.USEOC))
        prefs |= PdfWriter.PageModeUseOC;
      else if (name.equals(PdfName.USEATTACHMENTS))
        prefs |= PdfWriter.PageModeUseAttachments;
    }
    // set page layout and page mode preferences
    preferences.setViewerPreferences(prefs);
    // other preferences
    obj = PdfReader.getPdfObjectRelease(catalog
        .get(PdfName.VIEWERPREFERENCES));
    if (obj != null && obj.isDictionary()) {
      PdfDictionary vp = (PdfDictionary) obj;
      for (int i = 0; i < VIEWER_PREFERENCES.length; i++) {
        obj = PdfReader.getPdfObjectRelease(vp.get(VIEWER_PREFERENCES[i]));
        preferences.addViewerPreference(VIEWER_PREFERENCES[i], obj);
      }

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                PdfImage image = (PdfImage)obj1;
                if (image.get(PdfName.SMASK) != null)
                    throw new PdfXConformanceException("The /SMask key is not allowed in images.");
                switch (conf) {
                    case PdfWriter.PDFX1A2001:
                        PdfObject cs = image.get(PdfName.COLORSPACE);
                        if (cs == null)
                            return;
                        if (cs.isName()) {
                            if (PdfName.DEVICERGB.equals(cs))
                                throw new PdfXConformanceException("Colorspace RGB is not allowed.");
                        }
                        else if (cs.isArray()) {
                            if (PdfName.CALRGB.equals(((PdfArray)cs).getPdfObject(0)))
                                throw new PdfXConformanceException("Colorspace CalRGB is not allowed.");
                        }
                        break;
                }
                break;
            case PDFXKEY_GSTATE:
                PdfDictionary gs = (PdfDictionary)obj1;
                PdfObject obj = gs.get(PdfName.BM);
                if (obj != null && !PdfGState.BM_NORMAL.equals(obj) && !PdfGState.BM_COMPATIBLE.equals(obj))
                    throw new PdfXConformanceException("Blend mode " + obj.toString() + " not allowed.");
                obj = gs.get(PdfName.CA);
                double v = 0.0;
                if (obj != null && (v = ((PdfNumber)obj).doubleValue()) != 1.0)
                    throw new PdfXConformanceException("Transparency is not allowed: /CA = " + v);
                obj = gs.get(PdfName.ca);

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  /**
   * Defines the sort order of the field (ascending or descending).
   * @param ascending  true is the default, use false for descending order
   */
  public void setSortOrder(boolean ascending) {
    PdfObject o = get(PdfName.S);
    if (o instanceof PdfName) {
      put(PdfName.A, new PdfBoolean(ascending));
    }
    else {
      throw new IllegalArgumentException("You have to define a boolean array for this collection sort dictionary.");

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  /**
   * Defines the sort order of the field (ascending or descending).
   * @param ascending  an array with every element corresponding with a name of a field.
   */
  public void setSortOrder(boolean[] ascending) {
    PdfObject o = get(PdfName.S);
    if (o instanceof PdfArray) {
      if (((PdfArray)o).size() != ascending.length) {
        throw new IllegalArgumentException("The number of booleans in this array doesn't correspond with the number of fields.");
      }
      PdfArray array = new PdfArray();

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   * You can only use this method after you have set the value of the item.
   * @param prefix  a prefix
   */
  public void setPrefix(String key, String prefix) {
    PdfName fieldname = new PdfName(key);
    PdfObject o = get(fieldname);
    if (o == null)
      throw new IllegalArgumentException("You must set a value before adding a prefix.");
    PdfDictionary dict = new PdfDictionary(PdfName.COLLECTIONSUBITEM);
    dict.put(PdfName.D, o);
    dict.put(PdfName.P, new PdfString(prefix, PdfObject.TEXT_UNICODE));

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        if (info != null) {
          DublinCoreSchema dc = new DublinCoreSchema();
          PdfSchema p = new PdfSchema();
          XmpBasicSchema basic = new XmpBasicSchema();
          PdfName key;
          PdfObject obj;
          for (Iterator it = info.getKeys().iterator(); it.hasNext();) {
            key = (PdfName)it.next();
            obj = info.get(key);
            if (obj == null)
              continue;

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    public static Image getInstance(PRIndirectReference ref) throws BadElementException {
        PdfDictionary dic = (PdfDictionary)PdfReader.getPdfObjectRelease(ref);
        int width = ((PdfNumber)PdfReader.getPdfObjectRelease(dic.get(PdfName.WIDTH))).intValue();
        int height = ((PdfNumber)PdfReader.getPdfObjectRelease(dic.get(PdfName.HEIGHT))).intValue();
        Image imask = null;
        PdfObject obj = dic.get(PdfName.SMASK);
        if (obj != null && obj.isIndirect()) {
            imask = getInstance((PRIndirectReference)obj);
        }
        else {
            obj = dic.get(PdfName.MASK);
            if (obj != null && obj.isIndirect()) {
                PdfObject obj2 = PdfReader.getPdfObjectRelease(obj);
                if (obj2 instanceof PdfDictionary)
                    imask = getInstance((PRIndirectReference)obj);
            }
        }
        Image img = new ImgRaw(width, height, 1, 1, null);

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