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pagination/page_x_of_y

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/* $Id: page_x_of_y.java,v 1.8 2013/01/15 10:12:01 stm Exp $

 * Create page X of Y:

 * Create a running footer "Page x of y" on each page of the document

 *

 * On each page a running header or footer "Page x of y" is required where x is

 * the current page number and y is the total number of pages in the document.

 * Since y is only known after creating all pages, the number y must be added

 * to each page after creating the bulk of the document.

 *

 * This topic demonstrates the use of suspend/resume_page().

 *

 * Required software: PDFlib/PDFlib+PDI/PPS 9

 * Required data: none

 */

package com.pdflib.cookbook.pdflib.pagination;


import com.pdflib.pdflib;

import com.pdflib.PDFlibException;


public class page_x_of_y

{

    public static void main (String argv[])

    {

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

    String searchpath = "../input";

    String outfile = "page_x_of_y.pdf";

    String title = "Create Page X of Y";


    pdflib p = null;

    int font, x = 500, y = 20, pagecount = 0;


    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 $");


        font = p.load_font("Helvetica", "unicode", "");

        if (font == -1)

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


        /* Create some pages while counting the total number of pages.

         * Suspend the creation of each page to be able to add the total number

         * of pages later. Resume the page creation to add the total number of

         * pages in a footer like "Page X of Y".

         *

         * Create page 1

         */

        p.begin_page_ext(0, 0, "width=a4.width height=a4.height");


        pagecount++;

        p.setcolor("fill", "rgb", 0, 0.4, 0.4, 0);

        p.setfont(font, 12);

        p.show_xy("Page 1", x, y);


        /* Suspend page 1 to resume it later */

        p.suspend_page("");


        /* Create page 2 */

        p.begin_page_ext(0, 0, "width=a4.width height=a4.height");

        pagecount++;

        p.setcolor("fill", "rgb", 0, 0.4, 0.4, 0);

        p.setfont(font, 12);

        p.show_xy("Page 2", x, y);


        /* Suspend page 2 to resume it later */

        p.suspend_page("");


        /* Create page 3 */

        p.begin_page_ext(0, 0, "width=a4.width height=a4.height");

        pagecount++;

        p.setcolor("fill", "rgb", 0, 0.4, 0.4, 0);

        p.setfont(font, 12);

        p.show_xy("Page 3", x, y);


        /* Suspend page 3 to resume it later */

        p.suspend_page("");


        /* Revisit page 1 */

        p.resume_page("pagenumber 1");


        /* Add the total number of pages */

        p.show(" of " + pagecount);

        p.end_page_ext("");


        /* Revisit page 2 */

        p.resume_page("pagenumber 2");


        /* Add the total number of pages */

        p.show(" of " + pagecount);

        p.end_page_ext("");


        /* Revisit page 3 */

        p.resume_page("pagenumber 3");


        /* Add the total number of pages */

        p.show(" of " + pagecount);

        p.end_page_ext("");


        p.end_document("");


        } catch (PDFlibException e) {

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

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

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

        } catch (Exception e) {

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

        } finally {

            if (p != null) {

                p.delete();

            }

        }

    }

}