Java PdfWriter.setPageEvent方法代碼示例

import com.itextpdf.text.pdf.PdfWriter; //導入方法依賴的package包/類
public void createPDF(String outputFile, ArrayList<Question> qlist, boolean showCorrectAnswer,
        PageCounter pagecounter, int maximumPageNumber, String inputFolder) throws DocumentException, IOException
{
    _inputFolder = inputFolder;
    Document document = new Document(PageSize.A4, 50, 50, 70, 50);
    PdfWriter pdfwriter = PdfWriter.getInstance(document, new FileOutputStream(outputFile));

    pdfwriter.setBoxSize("art", new Rectangle(36, 54, 559, 788));

    pdfwriter.setPageEvent(new HeaderFooter(maximumPageNumber));

    if (pagecounter != null)
    {
        pdfwriter.setPageEvent(pagecounter);
    }

    document.open();

    Paragraph p = new Paragraph();
    // p.setSpacingBefore(SPACING);
    p.setSpacingAfter(SPACING);
    p.setIndentationLeft(INDENTATION);

    writeQuestions(p, document, showCorrectAnswer, qlist);

    document.close();

}
 

import com.itextpdf.text.pdf.PdfWriter; //導入方法依賴的package包/類
@Test
public void testParagraphBackgroundEventListener() throws DocumentException, FileNotFoundException
{
    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(new File(RESULT_FOLDER, "document-with-paragraph-backgrounds.pdf")));
    ParagraphBackground border = new ParagraphBackground();
    writer.setPageEvent(border);
    document.open();
    document.add(new Paragraph("Hello,"));
    document.add(new Paragraph("In this document, we'll add several paragraphs that will trigger page events. As long as the event isn't activated, nothing special happens, but let's make the event active and see what happens:"));
    border.setActive(true);
    document.add(new Paragraph("This paragraph now has a background. Isn't that fantastic? By changing the event, we can even draw a border, change the line width of the border and many other things. Now let's deactivate the event."));
    border.setActive(false);
    document.add(new Paragraph("This paragraph no longer has a background."));
    document.close();
}
 

import com.itextpdf.text.pdf.PdfWriter; //導入方法依賴的package包/類
/**
 * Generates a document with a header containing Page x of y and with a Watermark on every page.
 * @param args no arguments needed
 */
public static void main(String args[]) {
    try {
    	// step 1: creating the document
        Document doc = new Document(PageSize.A4, 50, 50, 100, 72);
        // step 2: creating the writer
        PdfWriter writer = PdfWriter.getInstance(doc, new FileOutputStream("pageNumbersWatermark.pdf"));
        // step 3: initialisations + opening the document
        writer.setPageEvent(new PageNumbersWatermark());
        doc.open();
        // step 4: adding content
        String text = "some padding text ";
        for (int k = 0; k < 10; ++k)
            text += text;
        Paragraph p = new Paragraph(text);
        p.setAlignment(Element.ALIGN_JUSTIFIED);
        doc.add(p);
        // step 5: closing the document
        doc.close();
    }
    catch ( Exception e ) {
        e.printStackTrace();
    }
}
 

import com.itextpdf.text.pdf.PdfWriter; //導入方法依賴的package包/類
public Document createDocument(ReportTitle reportTitle, OutputStream out) throws Exception {
	Document doc = new Document();
	PdfWriter writer = PdfWriter.getInstance(doc, out);
	if (reportTitle.isShowPageNo()) {
		PdfReportPageNumber event = new PdfReportPageNumber(chineseFont);
		writer.setPageEvent(event);
	}
	doc.open();
	Paragraph paragraph = this.createReportTitle(reportTitle);
	doc.add(paragraph);
	return doc;
}
 

import com.itextpdf.text.pdf.PdfWriter; //導入方法依賴的package包/類
public void render( PdfWriter writer, Document document ) throws PdfRenderException{
	writer.setPageEvent(page);
	if( page.getBlocks() == null || page.getBlocks().length == 0 ){
		writer.setPageEmpty( false );
		writer.newPage();
	}else{
		document.newPage();
		PdfContentByte cb = writer.getDirectContent();
		for( BaseElement block : page.getBlocks() ){
			block.onRender( cb );
		}
	}
}
 

import com.itextpdf.text.pdf.PdfWriter; //導入方法依賴的package包/類
private void setFooter(PdfWriter writer) throws DocumentException,
		IOException {
	//HeaderFooter headerFooter = new HeaderFooter("海南國保", 10, PageSize.A4);
	// 更改事件，瞬間變身 第幾頁/共幾頁 模式。
	HeaderFooter headerFooter = new HeaderFooter();// 就是上麵那個類
	writer.setBoxSize("art", PageSize.A4);
	writer.setPageEvent(headerFooter);
}
 

import com.itextpdf.text.pdf.PdfWriter; //導入方法依賴的package包/類
protected File generarPdf(String author, String creator, String subject, String title, String contenido, String ruta, boolean concat) {


        Document document = new Document(PageSize.A4, 35, 30, 70, 50);
        FileOutputStream fileO;
        File file = new File(ruta);
        if (!file.exists()) {
            try {
                if (concat) {
                    fileO = new FileOutputStream(new File(ruta));
                } else {

                    fileO = new FileOutputStream(ruta);
                }
                PdfWriter writer = PdfWriter.getInstance(document, fileO);

                writer.setBoxSize("art", new Rectangle(36, 54, 559, 788));
                HeaderFooter event = new HeaderFooter();
                writer.setPageEvent(event);

                document.open();
                if (!concat) {
                    document.addAuthor(author);
                    document.addCreator(creator);
                    document.addSubject(subject);
                    document.addCreationDate();
                    document.addTitle(title);
                }

                contenido = procesarHtml(contenido);

                HTMLWorker htmlWorker = new HTMLWorker(document);
                if (concat) {
                    htmlWorker.newPage();
                }

                htmlWorker.parse(new StringReader(contenido));
                document.close();

                File file1 = new File(ruta);
                return file1;

            } catch (Exception e) {

                return null;
            }
        }

        return file;
    }
 

import com.itextpdf.text.pdf.PdfWriter; //導入方法依賴的package包/類
/**
 * Serialises the evaluated parse tree as a PDF to the output stream
 * @param pOutputStream The output stream for the serialised PDF
 */
public void serialise(OutputStream pOutputStream) {
  // TODO WH: Is there actually a possibility this could be null at runtime, or should this be an assertion instead? (copied from HTML serialiser)
  if (pOutputStream == null) {
    throw new ExInternal("Output stream must not be null");
  }

  // PDF serialisation is done in two passes, the first pass bytes are streamed first, the second pass will then
  // stream the final document to pOutputStream
  ByteArrayOutputStream lFirstPassOutput = new ByteArrayOutputStream();
  // Opening a writer with the first pass output stream will allow the document to be opened and written to the stream
  PdfWriter lWriter = openWriter(mDocument, lFirstPassOutput);
  // Set the document metadata (title, author etc.) provided to the serialiser
  setDocumentMetadata();
  // Page manager will handle document page events (i.e. page end)
  lWriter.setPageEvent(mPageManager);

  // Start with the default element attributes, start a document container and render from the root buffer of the
  // evaluated parse tree
  pushElementAttributes(DefaultElementAttributes.getDefaultAttributes());
  startContainer(ElementContainerFactory.getContainer(mDocument));
  mEvalParseTree.getRootBuffer().render(mEvalParseTree, this);
  endContainer();
  popElementAttributes();

  // Post conditions to ensure that there are no lingering element attributes, containers, or page templates open
  if (mElementAttributeManager.hasAttributes()) {
    throw new ExInternal("Document processing has finished but not all element attributes have been popped");
  }

  if (mElementContainerManager.hasContainer()) {
    throw new ExInternal("Document processing has finished but not all containers have been ended");
  }

  if (mPageManager.hasPageTemplate()) {
    throw new ExInternal("Document processing has finished but not all page templates have been ended");
  }

  // Check that any content was actually serialised (document is opened only when content is first serialised)
  if (!mDocument.isOpen()) {
    throw new ExInternal("The document was not opened because no content was serialised. Ensure your PDF buffer has content.");
  }

  // Close the document - this completes the first pass output
  mDocument.close();

  // Apply second pass processing, currently the only post processing required is headers/footers
  PostProcessingManager lPostProcessingManager = new PostProcessingManager();
  lPostProcessingManager.addPostProcessingOperation(new HeaderFooterPostProcessingOperation(mPageManager));
  lPostProcessingManager.process(pOutputStream, lFirstPassOutput);
}
 

import com.itextpdf.text.pdf.PdfWriter; //導入方法依賴的package包/類
/**
 * <a href="http://stackoverflow.com/questions/43610868/how-to-add-dynamic-variable-to-footer-without-calling-document-newpage-in-itex">
 * How to add dynamic variable to footer without calling document.newPage() in iText 5
 * </a>
 * <p>
 * generator method of the OP
 * </p>
 * @see #testDynamicFooterLikeAyZagen()
 */
public static void createPdf(ArrayList<String> htmlStrings, FooterTable footerEvt, String destinationPath)
        throws IOException, DocumentException {
    Document document = new Document(PageSize.A4);
    document.setMargins(68, 85, 75, 85);
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(destinationPath));
    if (footerEvt != null)
        writer.setPageEvent(footerEvt);
    document.open();

    CSSResolver cssResolver = new StyleAttrCSSResolver();
    CssFile cssFile = XMLWorkerHelper
            .getCSS(new ByteArrayInputStream(/*readCSS("resources/content.min.css").getBytes()*/ "".getBytes()));
    cssResolver.addCss(cssFile);

    XMLWorkerFontProvider fontProvider = new XMLWorkerFontProvider(XMLWorkerFontProvider.DONTLOOKFORFONTS);
    fontProvider.register(/*"resources/ARIAL.TTF"*/ "c:/Windows/Fonts/arial.ttf");

    CssAppliers cssAppliers = new CssAppliersImpl(fontProvider);
    HtmlPipelineContext htmlContext = new HtmlPipelineContext(cssAppliers);
    htmlContext.setTagFactory(Tags.getHtmlTagProcessorFactory());

    PdfWriterPipeline pdf = new PdfWriterPipeline(document, writer);
    HtmlPipeline html = new HtmlPipeline(htmlContext, pdf);
    CssResolverPipeline css = new CssResolverPipeline(cssResolver, html);

    XMLWorker worker = new XMLWorker(css, true);
    XMLParser p = new XMLParser(worker);
    int i = 0;
    for (String htmlfile : htmlStrings) {
        i++;
        footerEvt.setTitleIndex("" + i);//or FooterTable.setTitleIndex("" + i);
        ByteArrayInputStream stream = new ByteArrayInputStream(htmlfile.getBytes("UTF-8"));
        p.parse(stream, Charset.forName("UTF-8"));
    }
    document.close();
}