Example usage for com.lowagie.text.pdf PdfContentByte newlineText

Introduction

In this page you can find the example usage for com.lowagie.text.pdf PdfContentByte newlineText.

Prototype

public void newlineText() 

Source Link

Document

Moves to the start of the next line.

Usage

From source file:com.virtusa.akura.student.controller.MessageBoardController.java

License:Open Source License

/**
 * Merge many pdf files into one file.//from ww w  . j a v  a2s . c  o  m
 *
 * @param streamOfPDFFiles - a list of inputStreams
 * @param outputStream - an instance of outputStream
 * @param paginate - a boolean
 * @throws AkuraAppException - The exception details that occurred when processing
 */
public static void concatPDFs(List<InputStream> streamOfPDFFiles, OutputStream outputStream, boolean paginate)
        throws AkuraAppException {

    final int fontSize = 8, leftRightAlignment = 8;
    final int min = 0;
    final int max = 5;
    final int size = 300;
    final int xAxis = -150;
    final int pageHeight = 550;
    final int pageHieghtfromBottom = 16;
    final int pageRecHeight = 580;
    final int recHeightFromBottom = 14;
    Document document = new Document(PageSize.A4);
    try {
        List<InputStream> pdfs = streamOfPDFFiles;
        List<PdfReader> readers = new ArrayList<PdfReader>();
        int totalPages = 0;
        Iterator<InputStream> iteratorPDFs = pdfs.iterator();

        // Create Readers for the pdfs.
        while (iteratorPDFs.hasNext()) {
            InputStream pdf = iteratorPDFs.next();
            PdfReader pdfReader = new PdfReader(pdf);
            readers.add(pdfReader);
            totalPages += pdfReader.getNumberOfPages();
        }
        // Create a writer for the output stream
        PdfWriter writer = null;
        BaseFont bf = null;
        try {
            writer = PdfWriter.getInstance(document, outputStream);

            document.open();

            bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
        } catch (DocumentException e) {
            e.printStackTrace();
        }
        PdfContentByte cb = writer.getDirectContent(); // Holds the PDF data
        PdfImportedPage page;
        int currentPageNumber = 0;
        int pageOfCurrentReaderPDF = 0;
        Iterator<PdfReader> iteratorPDFReader = readers.iterator();

        // Loop through the PDF files and add to the output.
        while (iteratorPDFReader.hasNext()) {
            PdfReader pdfReader = iteratorPDFReader.next();

            // Create a new page in the target for each source page.
            while (pageOfCurrentReaderPDF < pdfReader.getNumberOfPages()) {
                if (currentPageNumber != 2) {
                    document.newPage();
                }
                pageOfCurrentReaderPDF++;
                currentPageNumber++;
                page = writer.getImportedPage(pdfReader, pageOfCurrentReaderPDF);
                if (currentPageNumber == 1) {
                    cb.addTemplate(page, 0, xAxis);
                } else if (currentPageNumber != 2) {
                    cb.addTemplate(page, 0, 0);
                }

                // Code for pagination.
                if (paginate) {
                    cb.beginText();
                    cb.setFontAndSize(bf, fontSize);
                    cb.showTextAligned(PdfContentByte.ALIGN_CENTER, " " + AkuraWebConstant.REPORT_GPL, size,
                            max, min);
                    cb.newlineText();
                    cb.endText();

                    if (currentPageNumber != 2) {
                        int pageNo = currentPageNumber;
                        if (currentPageNumber != 1) {
                            pageNo = currentPageNumber - 1;
                        }

                        // write the page number inside a rectangle.
                        cb.fillStroke();
                        cb.rectangle(leftRightAlignment, recHeightFromBottom, pageRecHeight,
                                leftRightAlignment);
                        cb.beginText();
                        cb.showTextAligned(PdfContentByte.ALIGN_LEFT, PAGE + pageNo, pageHeight,
                                pageHieghtfromBottom, 0);
                        cb.endText();
                        cb.stroke();
                    }
                }
            }
            pageOfCurrentReaderPDF = 0;
        }

        outputStream.flush();

        document.close();

        outputStream.close();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (document.isOpen()) {
            document.close();
        }
        try {
            if (outputStream != null) {
                outputStream.close();
            }
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }
    }
}

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