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blocks/duplicate_block

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/* $Id: duplicate_block.java,v 1.8 2014/01/30 14:05:22 rjs Exp $

 * Duplicate block:

 * Duplicate a PDFlib block to any number of pages

 *

 * Import a PDF page containing a block and place it with fit_pdi_page() on

 * the first page of the output document. Fill the contained text block with the

 * number of the current page.

 * On subsequent pages, place the imported PDF page with the "blind" option

 * supplied so that the actual page contents will not be placed, but the block

 * can be filled nevertheless. Fill the text block with the number of the

 * respective page.

 *

 * Required software: PPS 9

 * Required data: PDF document containing blocks

 */

package com.pdflib.cookbook.pdflib.blocks;


import com.pdflib.pdflib;

import com.pdflib.PDFlibException;


public class duplicate_block

{

    public static void main (String argv[])

    {

        /* This is where the data files are. Adjust as necessary. */

        String searchpath = "../input";

        String outfile = "duplicate_block.pdf";

        String title = "Duplicate Block";


        pdflib p = null;

        double width, height;

        String infile = "announcement_blocks.pdf";

        int inpage, indoc;

        int exitcode = 0;

     

       

        /* Name of the block contained on the imported page */

        final String blockname = "page";

        

        try {

            p = new pdflib();


            p.set_option("searchpath={" + searchpath + "}");


            /* This means we must check return values of load_font() etc. */

            p.set_option("errorpolicy=return");


            if (p.begin_document(outfile, "") == -1)

                throw new Exception("Error: " + p.get_errmsg());


            p.set_info("Creator", "PDFlib Cookbook");

            p.set_info("Title", title + " $Revision: 1.8 $");


            /* Open a PDF containing a block to store the page number */

            indoc = p.open_pdi_document(infile, "");

            if (indoc == -1)

                throw new Exception("Error: " + p.get_errmsg());

            

            /* Open the first page of the imported document */

            inpage = p.open_pdi_page(indoc, 1, "");

            if (inpage == -1)

                throw new Exception("Error: " + p.get_errmsg());

            

            /* Get the width and height of the imported page */

            width = p.pcos_get_number(indoc, "pages[0]/width");

            height = p.pcos_get_number(indoc, "pages[0]/height");

            

            /* Start the output page with the size given by the imported page */

            p.begin_page_ext(width, height, "");


            /* Place the imported page */

            p.fit_pdi_page(inpage, 0, 0, "");

            

            /* Fill the text block with the number of the first page */

            p.fill_textblock(inpage, blockname, "1",

                "encoding=unicode");

            

            /* Finish page */

            p.end_page_ext("");

            

                    

            /* -----------------------------------------------

             * Duplicate the block on several subsequent pages

             * -----------------------------------------------

             */

            for (int i = 2; i <= 5; i++)

            {

                /* Start the output page with the size given by the imported page */

                p.begin_page_ext(width, height, "");

               

                /* Place the imported page on the output page but supply the "blind"

                 * option to suppress the actual page contents. The block is

                 * available to be filled nevertheless.

                 */

                p.fit_pdi_page(inpage, 0, 0, "blind");

               

                /* Fill the text block with the number of the current page */

                p.fill_textblock(inpage, blockname, String.valueOf(i),

                    "encoding=unicode");

               

                /* Output some descriptive text */

                String optlist = "fontname=Helvetica fontsize=16 encoding=unicode";

                String text = "Page " + i + ": The page number is filled " +

                    "in the block duplicated from page 1";

               

                p.fit_textline(text, 30, 400, optlist);

               

                /* Finish page */

                p.end_page_ext("");

            }

                  

            p.close_pdi_page(inpage);


            p.end_document("");

            p.close_pdi_document(indoc);


        } catch (PDFlibException e) {

            System.err.print("PDFlib exception occurred:\n");

            System.err.print("[" + e.get_errnum() + "] " + e.get_apiname() +

                ": " + e.get_errmsg() + "\n");

            exitcode = 1;

        } catch (Exception e) {

            System.err.println(e.getMessage());

            exitcode = 1;

        } finally {

            if (p != null) {

                p.delete();

            }

            System.exit(exitcode);

        }

    }

}