Java 类com.lowagie.text.pdf.PdfArray 实例源码

项目：itext2 文件：PdfContentStreamProcessor.java

public static byte[] getContentBytesFromPdfObject(PdfObject object) throws IOException {
    switch (object.type()) {
    case PdfObject.INDIRECT:
        return getContentBytesFromPdfObject(PdfReader.getPdfObject(object));
    case PdfObject.STREAM:
        return PdfReader.getStreamBytes((PRStream) PdfReader.getPdfObject(object));
    case PdfObject.ARRAY:
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ListIterator<PdfObject> iter = ((PdfArray) object).listIterator();
        while (iter.hasNext()) {
            PdfObject element = iter.next();
            baos.write(getContentBytesFromPdfObject(element));
        }
        return baos.toByteArray();
    default:
        throw new IllegalStateException("Unsupported type: " + object.getClass().getCanonicalName());
    }
}

项目：itext2 文件：Image.java

/**
 * Replaces CalRGB and CalGray colorspaces with DeviceRGB and DeviceGray.
 */    
public void simplifyColorspace() {
    if (additional == null)
        return;
    PdfArray value = additional.getAsArray(PdfName.COLORSPACE);
    if (value == null)
        return;
    PdfObject cs = simplifyColorspace(value);
    PdfObject newValue;
    if (cs.isName())
        newValue = cs;
    else {
        newValue = value;
        PdfName first = value.getAsName(0);
        if (PdfName.INDEXED.equals(first)) {
            if (value.size() >= 2) {
                PdfArray second = value.getAsArray(1);
                if (second != null) {
                    value.set(1, simplifyColorspace(second));
                }
            }
        }
    }
    additional.put(PdfName.COLORSPACE, newValue);
}

项目：itext2 文件：Image.java

/**
* Gets a PDF Name from an array or returns the object that was passed.
*/
  private PdfObject simplifyColorspace(PdfArray obj) {
      if (obj == null)
          return obj;
      PdfName first = obj.getAsName(0);
      if (PdfName.CALGRAY.equals(first))
          return PdfName.DEVICEGRAY;
      else if (PdfName.CALRGB.equals(first))
          return PdfName.DEVICERGB;
      else
          return obj;
  }

项目：itext2 文件：PdfContentStreamProcessor.java

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
    PdfName dictionaryName = (PdfName) operands.get(0);
    PdfDictionary extGState = processor.resources.getAsDict(PdfName.EXTGSTATE);
    if (extGState == null) {
        throw new IllegalArgumentException(
                "Resources do not contain ExtGState entry. Unable to process operator " + operator);
    }
    PdfDictionary gsDic = extGState.getAsDict(dictionaryName);
    if (gsDic == null) {
        throw new IllegalArgumentException(dictionaryName + " is an unknown graphics state dictionary");
    }

    // 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 = new CMapAwareDocumentFont(
                (PRIndirectReference) fontParameter.getPdfObject(0));
        float size = fontParameter.getAsNumber(1).floatValue();

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

项目：itext2 文件：PdfAnnotationsImp.java

public PdfArray rotateAnnotations(PdfWriter writer, Rectangle pageSize) {
    PdfArray array = new PdfArray();
    int rotation = pageSize.getRotation() % 360;
    int currentPage = writer.getCurrentPageNumber();
    for (int k = 0; k < annotations.size(); ++k) {
        PdfAnnotation dic = (PdfAnnotation)annotations.get(k);
        int page = dic.getPlaceInPage();
        if (page > currentPage) {
            delayedAnnotations.add(dic);
            continue;
        }
        if (dic.isForm()) {
            if (!dic.isUsed()) {
                HashMap templates = dic.getTemplates();
                if (templates != null)
                    acroForm.addFieldTemplates(templates);
            }
            PdfFormField field = (PdfFormField)dic;
            if (field.getParent() == null)
                acroForm.addDocumentField(field.getIndirectReference());
        }
        if (dic.isAnnotation()) {
            array.add(dic.getIndirectReference());
            if (!dic.isUsed()) {
                PdfRectangle rect = (PdfRectangle)dic.get(PdfName.RECT);
                if (rect != null) {
                    switch (rotation) {
                        case 90:
                            dic.put(PdfName.RECT, new PdfRectangle(
                                    pageSize.getTop() - rect.bottom(),
                        rect.left(),
                        pageSize.getTop() - rect.top(),
                        rect.right()));
                            break;
                        case 180:
                            dic.put(PdfName.RECT, new PdfRectangle(
                                    pageSize.getRight() - rect.left(),
                        pageSize.getTop() - rect.bottom(),
                        pageSize.getRight() - rect.right(),
                        pageSize.getTop() - rect.top()));
                            break;
                        case 270:
                            dic.put(PdfName.RECT, new PdfRectangle(
                                    rect.bottom(),
                        pageSize.getRight() - rect.left(),
                        rect.top(),
                        pageSize.getRight() - rect.right()));
                            break;
                    }
                }
            }
        }
        if (!dic.isUsed()) {
            dic.setUsed();
            try {
                writer.addToBody(dic, dic.getIndirectReference());
            }
            catch (IOException e) {
                throw new ExceptionConverter(e);
            }
        }
    }
    return array;
}

项目：itext2 文件：PngImage.java

PdfObject getColorspace() {
    if (icc_profile != null) {
        if ((colorType & 2) == 0)
            return PdfName.DEVICEGRAY;
        else
            return PdfName.DEVICERGB;
    }
    if (gamma == 1f && !hasCHRM) {
        if ((colorType & 2) == 0)
            return PdfName.DEVICEGRAY;
        else
            return PdfName.DEVICERGB;
    }
    else {
        PdfArray array = new PdfArray();
        PdfDictionary dic = new PdfDictionary();
        if ((colorType & 2) == 0) {
            if (gamma == 1f)
                return PdfName.DEVICEGRAY;
            array.add(PdfName.CALGRAY);
            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);
                gm.add(n);
                gm.add(n);
                dic.put(PdfName.GAMMA, gm);
            }
            if (hasCHRM) {
                float z = yW*((xG-xB)*yR-(xR-xB)*yG+(xR-xG)*yB);
                float YA = yR*((xG-xB)*yW-(xW-xB)*yG+(xW-xG)*yB)/z;
                float XA = YA*xR/yR;
                float ZA = YA*((1-xR)/yR-1);
                float YB = -yG*((xR-xB)*yW-(xW-xB)*yR+(xW-xR)*yB)/z;
                float XB = YB*xG/yG;
                float ZB = YB*((1-xG)/yG-1);
                float YC = yB*((xR-xG)*yW-(xW-xG)*yW+(xW-xR)*yG)/z;
                float XC = YC*xB/yB;
                float ZC = YC*((1-xB)/yB-1);
                float XW = XA+XB+XC;
                float YW = 1;//YA+YB+YC;
                float ZW = ZA+ZB+ZC;
                PdfArray wpa = new PdfArray();
                wpa.add(new PdfNumber(XW));
                wpa.add(new PdfNumber(YW));
                wpa.add(new PdfNumber(ZW));
                wp = wpa;
                PdfArray matrix = new PdfArray();
                matrix.add(new PdfNumber(XA));
                matrix.add(new PdfNumber(YA));
                matrix.add(new PdfNumber(ZA));
                matrix.add(new PdfNumber(XB));
                matrix.add(new PdfNumber(YB));
                matrix.add(new PdfNumber(ZB));
                matrix.add(new PdfNumber(XC));
                matrix.add(new PdfNumber(YC));
                matrix.add(new PdfNumber(ZC));
                dic.put(PdfName.MATRIX, matrix);
            }
            dic.put(PdfName.WHITEPOINT, wp);
            array.add(dic);
        }
        return array;
    }
}

项目：itext2 文件：PdfCollectionSort.java

/**
 * 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();
        for (int i = 0; i < ascending.length; i++) {
            array.add(new PdfBoolean(ascending[i]));
        }
        put(PdfName.A, array);
    }
    else {
        throw new IllegalArgumentException("You need a single boolean for this collection sort dictionary.");
    }
}

项目：DroidText 文件：Image.java

/**
 * Replaces CalRGB and CalGray colorspaces with DeviceRGB and DeviceGray.
 */    
public void simplifyColorspace() {
    if (additional == null)
        return;
    PdfArray value = additional.getAsArray(PdfName.COLORSPACE);
    if (value == null)
        return;
    PdfObject cs = simplifyColorspace(value);
    PdfObject newValue;
    if (cs.isName())
        newValue = cs;
    else {
        newValue = value;
        PdfName first = value.getAsName(0);
        if (PdfName.INDEXED.equals(first)) {
            if (value.size() >= 2) {
                PdfArray second = value.getAsArray(1);
                if (second != null) {
                    value.set(1, simplifyColorspace(second));
                }
            }
        }
    }
    additional.put(PdfName.COLORSPACE, newValue);
}

项目：DroidText 文件：Image.java

/**
* Gets a PDF Name from an array or returns the object that was passed.
*/
  private PdfObject simplifyColorspace(PdfArray obj) {
      if (obj == null)
          return obj;
      PdfName first = obj.getAsName(0);
      if (PdfName.CALGRAY.equals(first))
          return PdfName.DEVICEGRAY;
      else if (PdfName.CALRGB.equals(first))
          return PdfName.DEVICERGB;
      else
          return obj;
  }

项目：DroidText 文件：PdfContentStreamProcessor.java

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
    PdfName dictionaryName = (PdfName)operands.get(0);
    PdfDictionary extGState = processor.resources.getAsDict(PdfName.EXTGSTATE);
    if (extGState == null)
        throw new IllegalArgumentException("Resources do not contain ExtGState entry. Unable to process operator " + operator);
    PdfDictionary gsDic = extGState.getAsDict(dictionaryName);
    if (gsDic == null)
        throw new IllegalArgumentException(dictionaryName + " is an unknown graphics state dictionary");

    // 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 = new CMapAwareDocumentFont((PRIndirectReference)fontParameter.getPdfObject(0));
        float size = fontParameter.getAsNumber(1).floatValue();

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

项目：DroidText 文件：PdfCollectionSort.java

/**
 * 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();
        for (int i = 0; i < ascending.length; i++) {
            array.add(new PdfBoolean(ascending[i]));
        }
        put(PdfName.A, array);
    }
    else {
        throw new IllegalArgumentException("You need a single boolean for this collection sort dictionary.");
    }
}

项目：itext2 文件：PdfContentStreamProcessor.java

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
    PdfArray array = (PdfArray) operands.get(0);
    float tj = 0;
    for (Iterator i = array.listIterator(); i.hasNext();) {
        Object entryObj = i.next();
        if (entryObj instanceof PdfString) {
            processor.displayPdfString((PdfString) entryObj, tj);
            tj = 0;
        } else {
            tj = ((PdfNumber) entryObj).floatValue();
        }
    }

}

项目：itext2 文件：PdfXConformanceImp.java

public void completeExtraCatalog(PdfDictionary extraCatalog) {
    if (isPdfX() && !isPdfA1()) {
        if (extraCatalog.get(PdfName.OUTPUTINTENTS) == null) {
            PdfDictionary out = new PdfDictionary(PdfName.OUTPUTINTENT);
            out.put(PdfName.OUTPUTCONDITION, new PdfString("SWOP CGATS TR 001-1995"));
            out.put(PdfName.OUTPUTCONDITIONIDENTIFIER, new PdfString("CGATS TR 001"));
            out.put(PdfName.REGISTRYNAME, new PdfString("http://www.color.org"));
            out.put(PdfName.INFO, new PdfString(""));
            out.put(PdfName.S, PdfName.GTS_PDFX);
            extraCatalog.put(PdfName.OUTPUTINTENTS, new PdfArray(out));
        }
    }
}

项目：itext2 文件：BmpImage.java

private Image indexedModel(byte bdata[], int bpc, int paletteEntries) throws BadElementException {
    Image img = new ImgRaw(width, height, 1, bpc, bdata);
    PdfArray colorspace = new PdfArray();
    colorspace.add(PdfName.INDEXED);
    colorspace.add(PdfName.DEVICERGB);
    byte np[] = getPalette(paletteEntries);
    int len = np.length;
    colorspace.add(new PdfNumber(len / 3 - 1));
    colorspace.add(new PdfString(np));
    PdfDictionary ad = new PdfDictionary();
    ad.put(PdfName.COLORSPACE, colorspace);
    img.setAdditional(ad);
    return img;
}

项目：itext2 文件：PdfCollectionSort.java

/**
 * Constructs a PDF Collection Sort Dictionary.
 * @param keys  the keys of the fields that will be used to sort entries
 */
public PdfCollectionSort(String[] keys) {
    super(PdfName.COLLECTIONSORT);
    PdfArray array = new PdfArray();
    for (int i = 0; i < keys.length; i++) {
        array.add(new PdfName(keys[i]));
    }
    put(PdfName.S, array);
}

项目：itext2 文件：LayersTest.java

/**
 * Demonstrates some Layer functionality.
 * 
 */
@Test
public void main() throws Exception {

    // step 1: creation of a document-object
    Document document = new Document();
    // step 2:
    PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("Layers.pdf"));
    writer.setPdfVersion(PdfWriter.VERSION_1_5);
    // step 3:
    writer.setViewerPreferences(PdfWriter.PageModeUseOC);
    document.open();
    // step 4:
    PdfContentByte cb = writer.getDirectContent();
    Phrase explanation = new Phrase("Layer grouping", new Font(Font.HELVETICA, 20, Font.BOLD, Color.red));
    ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, explanation, 50, 650, 0);
    PdfLayer l1 = new PdfLayer("Layer 1", writer);
    PdfLayer l2 = new PdfLayer("Layer 2", writer);
    PdfLayer l3 = new PdfLayer("Layer 3", writer);
    PdfLayerMembership m1 = new PdfLayerMembership(writer);
    m1.addMember(l2);
    m1.addMember(l3);
    Phrase p1 = new Phrase("Text in layer 1");
    Phrase p2 = new Phrase("Text in layer 2 or layer 3");
    Phrase p3 = new Phrase("Text in layer 3");
    cb.beginLayer(l1);
    ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p1, 50, 600, 0);
    cb.endLayer();
    cb.beginLayer(m1);
    ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p2, 50, 550, 0);
    cb.endLayer();
    cb.beginLayer(l3);
    ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p3, 50, 500, 0);
    cb.endLayer();
    PdfOCProperties p = writer.getOCProperties();
    PdfArray order = new PdfArray();
    order.add(l1.getRef());
    PdfArray group = new PdfArray();
    group.add(new PdfString("A group of two", PdfObject.TEXT_UNICODE));
    group.add(l2.getRef());
    group.add(l3.getRef());
    order.add(group);
    PdfDictionary d = new PdfDictionary();
    d.put(PdfName.ORDER, order);
    p.put(PdfName.D, d);

    // step 5: we close the document
    document.close();
}

项目：itext2 文件：PdfContentStreamProcessorTest.java

private byte[] readContentBytes(final PdfObject contentObject) throws IOException {
    final byte[] result;
    switch (contentObject.type()) {
    case PdfObject.INDIRECT:
        final PRIndirectReference ref = (PRIndirectReference) contentObject;
        final PdfObject directObject = PdfReader.getPdfObject(ref);
        result = readContentBytes(directObject);
        break;
    case PdfObject.STREAM:
        final PRStream stream = (PRStream) PdfReader.getPdfObject(contentObject);
        result = PdfReader.getStreamBytes(stream);
        break;
    case PdfObject.ARRAY:
        // Stitch together all content before calling processContent(),
        // because
        // processContent() resets state.
        final ByteArrayOutputStream allBytes = new ByteArrayOutputStream();
        final PdfArray contentArray = (PdfArray) contentObject;
        final ListIterator<?> iter = contentArray.listIterator();
        while (iter.hasNext()) {
            final PdfObject element = (PdfObject) iter.next();
            allBytes.write(readContentBytes(element));
        }
        result = allBytes.toByteArray();
        break;
    default:
        final String msg = "Unable to handle Content of type " + contentObject.getClass();
        throw new IllegalStateException(msg);
    }
    return result;
}

项目：jasperreports 文件：JRPdfExporterTagHelper.java

protected void createStartHeadingTags(String prop, PdfName pdfName)
{
    if (TAG_START.equals(prop) || TAG_FULL.equals(prop))
    {
        PdfStructureElement headingTag = new PdfStructureElement(tagStack.peek(), pdfName);
        //pdfContentByte.beginMarkedContentSequence(headingTag);
        headingTag.put(PdfName.K, new PdfArray());
        tagStack.push(headingTag);
        isTagEmpty = true;
    }
}

项目：jasperreports 文件：JRPdfExporterTagHelper.java

protected void createTableStartTag()
{
    PdfStructureElement tableTag = new PdfStructureElement(allTag, PdfName.TABLE);
    //pdfContentByte.beginMarkedContentSequence(tableTag);
    tableTag.put(PdfName.K, new PdfArray());
    tagStack.push(tableTag);
}

项目：jasperreports 文件：JRPdfExporterTagHelper.java

protected void createTrStartTag()
{
    PdfStructureElement tableRowTag = new PdfStructureElement(tagStack.peek(), PdfName.TABLEROW);
    //pdfContentByte.beginMarkedContentSequence(tableRowTag);
    tableRowTag.put(PdfName.K, new PdfArray());
    tagStack.push(tableRowTag);
}

项目：jasperreports 文件：JRPdfExporterTagHelper.java

protected void createThStartTag(JRPrintElement element)
{
    PdfStructureElement tableHeaderTag = new PdfStructureElement(tagStack.peek(), PdfName.TH);
    //pdfContentByte.beginMarkedContentSequence(tableHeaderTag);
    tableHeaderTag.put(PdfName.K, new PdfArray());
    tagStack.push(tableHeaderTag);
    isTagEmpty = true;

    createSpanTags(element, tableHeaderTag);
}

项目：jasperreports 文件：JRPdfExporterTagHelper.java

protected void createTdStartTag(JRPrintElement element)
{
    PdfStructureElement tableCellTag = new PdfStructureElement(tagStack.peek(), PdfName.TD);
    //pdfContentByte.beginMarkedContentSequence(tableCellTag);
    tableCellTag.put(PdfName.K, new PdfArray());
    tagStack.push(tableCellTag);
    isTagEmpty = true;

    createSpanTags(element, tableCellTag);
}

项目：jasperreports 文件：JRPdfExporterTagHelper.java

protected void createListStartTag()
{
    PdfStructureElement listTag = new PdfStructureElement(allTag, PdfName.L);
    //pdfContentByte.beginMarkedContentSequence(tableTag);
    listTag.put(PdfName.K, new PdfArray());
    tagStack.push(listTag);
}

项目：jasperreports 文件：JRPdfExporterTagHelper.java

protected void createListItemStartTag(JRPrintElement element)
{
    PdfStructureElement listItemTag = new PdfStructureElement(tagStack.peek(), PdfName.LI);
    //pdfContentByte.beginMarkedContentSequence(tableHeaderTag);
    listItemTag.put(PdfName.K, new PdfArray());
    tagStack.push(listItemTag);
    isTagEmpty = true;
}

项目：PDFTestForAndroid 文件：ContentGroups.java

/**
 * Demonstrates how to group optional content.
 * 
 * @param args
 *            no arguments needed
 */
public static void main(String[] args) {
    System.out.println("Grouping optional content");
    try {
        // step 1
        Document document = new Document(PageSize.A4, 50, 50, 50, 50);
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(android.os.Environment.getExternalStorageDirectory() + java.io.File.separator + "droidtext" + java.io.File.separator + "contentgroups.pdf"));
        writer.setPdfVersion(PdfWriter.VERSION_1_5);
        writer.setViewerPreferences(PdfWriter.PageModeUseOC);
        // step 3
        document.open();
        // step 4
        PdfContentByte cb = writer.getDirectContent();
        Phrase explanation = new Phrase("Layer grouping", new Font(Font.HELVETICA, 20, Font.BOLD, Color.red));
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, explanation, 50, 650, 0);
        PdfLayer l1 = new PdfLayer("Layer 1", writer);
        PdfLayer l2 = new PdfLayer("Layer 2", writer);
        PdfLayer l3 = new PdfLayer("Layer 3", writer);
        PdfLayerMembership m1 = new PdfLayerMembership(writer);
        m1.addMember(l2);
        m1.addMember(l3);
        Phrase p1 = new Phrase("Text in layer 1");
        Phrase p2 = new Phrase("Text in layer 2 or layer 3");
        Phrase p3 = new Phrase("Text in layer 3");
        cb.beginLayer(l1);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p1, 50, 600, 0);
        cb.endLayer();
        cb.beginLayer(m1);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p2, 50, 550, 0);
        cb.endLayer();
        cb.beginLayer(l3);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p3, 50, 500, 0);
        cb.endLayer();
        cb.sanityCheck();

        PdfOCProperties p = writer.getOCProperties();
        PdfArray order = new PdfArray();
        order.add(l1.getRef());
        PdfArray group = new PdfArray();
        group.add(new PdfString("A group of two", PdfObject.TEXT_UNICODE));
        group.add(l2.getRef());
        group.add(l3.getRef());
        order.add(group);
        PdfDictionary d = new PdfDictionary();
        d.put(PdfName.ORDER, order);
        p.put(PdfName.D, d);
        // step 5
        document.close();
    } catch (Exception de) {
        de.printStackTrace();
    }
}

项目：PDFTestForAndroid 文件：OrderedLayers.java

/**
 * Demonstrates how to order optional content groups.
 * 
 * @param args
 *            no arguments needed
 */
public static void main(String[] args) {
    System.out.println("Ordering optional content groups");
    try {
        // step 1
        Document document = new Document(PageSize.A4, 50, 50, 50, 50);
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(android.os.Environment.getExternalStorageDirectory() + java.io.File.separator + "droidtext" + java.io.File.separator + "orderedlayers.pdf"));
        writer.setPdfVersion(PdfWriter.VERSION_1_5);
        writer.setViewerPreferences(PdfWriter.PageModeUseOC);
        // step 3
        document.open();
        // step 4
        PdfContentByte cb = writer.getDirectContent();
        Phrase explanation = new Phrase("Ordered layers", new Font(Font.HELVETICA, 20, Font.BOLD, Color.red));
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, explanation, 50, 650, 0);
        PdfLayer l1 = new PdfLayer("Layer 1", writer);
        PdfLayer l2 = new PdfLayer("Layer 2", writer);
        PdfLayer l3 = new PdfLayer("Layer 3", writer);
        PdfLayerMembership m1 = new PdfLayerMembership(writer);
        m1.addMember(l2);
        m1.addMember(l3);
        Phrase p1 = new Phrase("Text in layer 1");
        Phrase p2 = new Phrase("Text in layer 2 or layer 3");
        Phrase p3 = new Phrase("Text in layer 3");
        cb.beginLayer(l1);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p1, 50, 600, 0);
        cb.endLayer();
        cb.beginLayer(m1);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p2, 50, 550, 0);
        cb.endLayer();
        cb.beginLayer(l3);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p3, 50, 500, 0);
        cb.endLayer();
        cb.sanityCheck();

        PdfOCProperties p = writer.getOCProperties();
        PdfArray order = new PdfArray();
        order.add(l1.getRef());
        order.add(l2.getRef());
        order.add(l3.getRef());
        PdfDictionary d = new PdfDictionary();
        d.put(PdfName.ORDER, order);
        p.put(PdfName.D, d);
        // step 5
        document.close();
    } catch (Exception de) {
        de.printStackTrace();
    }
}

项目：DroidText 文件：PdfContentStreamProcessor.java

public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
    PdfArray array = (PdfArray)operands.get(0);
    float tj = 0;
    for (Iterator i = array.listIterator(); i.hasNext(); ) {
        Object entryObj = i.next();
        if (entryObj instanceof PdfString){
            processor.displayPdfString((PdfString)entryObj, tj);
            tj = 0;
        } else {
            tj = ((PdfNumber)entryObj).floatValue();
        }
    }

}

项目：DroidText 文件：PdfXConformanceImp.java

public void completeExtraCatalog(PdfDictionary extraCatalog) {
    if (isPdfX() && !isPdfA1()) {
        if (extraCatalog.get(PdfName.OUTPUTINTENTS) == null) {
            PdfDictionary out = new PdfDictionary(PdfName.OUTPUTINTENT);
            out.put(PdfName.OUTPUTCONDITION, new PdfString("SWOP CGATS TR 001-1995"));
            out.put(PdfName.OUTPUTCONDITIONIDENTIFIER, new PdfString("CGATS TR 001"));
            out.put(PdfName.REGISTRYNAME, new PdfString("http://www.color.org"));
            out.put(PdfName.INFO, new PdfString(""));
            out.put(PdfName.S, PdfName.GTS_PDFX);
            extraCatalog.put(PdfName.OUTPUTINTENTS, new PdfArray(out));
        }
    }
}

项目：DroidText 文件：BmpImage.java

private Image indexedModel(byte bdata[], int bpc, int paletteEntries) throws BadElementException {
    Image img = new ImgRaw(width, height, 1, bpc, bdata);
    PdfArray colorspace = new PdfArray();
    colorspace.add(PdfName.INDEXED);
    colorspace.add(PdfName.DEVICERGB);
    byte np[] = getPalette(paletteEntries);
    int len = np.length;
    colorspace.add(new PdfNumber(len / 3 - 1));
    colorspace.add(new PdfString(np));
    PdfDictionary ad = new PdfDictionary();
    ad.put(PdfName.COLORSPACE, colorspace);
    img.setAdditional(ad);
    return img;
}

项目：DroidText 文件：PngImage.java

PdfObject getColorspace() {
    if (gamma == 1f && !hasCHRM) {
        if ((colorType & 2) == 0)
            return PdfName.DEVICEGRAY;
        else
            return PdfName.DEVICERGB;
    }
    else {
        PdfArray array = new PdfArray();
        PdfDictionary dic = new PdfDictionary();
        if ((colorType & 2) == 0) {
            if (gamma == 1f)
                return PdfName.DEVICEGRAY;
            array.add(PdfName.CALGRAY);
            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);
                gm.add(n);
                gm.add(n);
                dic.put(PdfName.GAMMA, gm);
            }
            if (hasCHRM) {
                float z = yW*((xG-xB)*yR-(xR-xB)*yG+(xR-xG)*yB);
                float YA = yR*((xG-xB)*yW-(xW-xB)*yG+(xW-xG)*yB)/z;
                float XA = YA*xR/yR;
                float ZA = YA*((1-xR)/yR-1);
                float YB = -yG*((xR-xB)*yW-(xW-xB)*yR+(xW-xR)*yB)/z;
                float XB = YB*xG/yG;
                float ZB = YB*((1-xG)/yG-1);
                float YC = yB*((xR-xG)*yW-(xW-xG)*yW+(xW-xR)*yG)/z;
                float XC = YC*xB/yB;
                float ZC = YC*((1-xB)/yB-1);
                float XW = XA+XB+XC;
                float YW = 1;//YA+YB+YC;
                float ZW = ZA+ZB+ZC;
                PdfArray wpa = new PdfArray();
                wpa.add(new PdfNumber(XW));
                wpa.add(new PdfNumber(YW));
                wpa.add(new PdfNumber(ZW));
                wp = wpa;
                PdfArray matrix = new PdfArray();
                matrix.add(new PdfNumber(XA));
                matrix.add(new PdfNumber(YA));
                matrix.add(new PdfNumber(ZA));
                matrix.add(new PdfNumber(XB));
                matrix.add(new PdfNumber(YB));
                matrix.add(new PdfNumber(ZB));
                matrix.add(new PdfNumber(XC));
                matrix.add(new PdfNumber(YC));
                matrix.add(new PdfNumber(ZC));
                dic.put(PdfName.MATRIX, matrix);
            }
            dic.put(PdfName.WHITEPOINT, wp);
            array.add(dic);
        }
        return array;
    }
}

项目：DroidText 文件：PdfCollectionSort.java

/**
 * Constructs a PDF Collection Sort Dictionary.
 * @param keys  the keys of the fields that will be used to sort entries
 */
public PdfCollectionSort(String[] keys) {
    super(PdfName.COLLECTIONSORT);
    PdfArray array = new PdfArray();
    for (int i = 0; i < keys.length; i++) {
        array.add(new PdfName(keys[i]));
    }
    put(PdfName.S, array);
}