pages/blocks

package com.pdflib.cookbook.pcos.pages;

import com.pdflib.pCOS;

import com.pdflib.pCOSException;

import com.pdflib.cookbook.pcos.pcos_cookbook_example;

/**

 * Create a list of all blocks contained on the pages of a PDF document and show

 * their name, type and dimensions.

 * <p>

 * Required software: pCOS interface 3 (pCOS 3.x, PDFlib+PDI/PPS 7.x, TET 2.2,

 * PLOP 3.x) <br>

 * Required data: PDF document

 *

 * @version $Id: blocks.java,v 1.6 2010/09/27 13:24:26 stm Exp $

 */

public class blocks extends pcos_cookbook_example {

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

    private final static String SEARCH_PATH = "../input";

    public void example_code(pCOS p, String filename) throws pCOSException,

        Exception {

        /* Open the PDF document */

        int doc = p.open_document(filename, "");

        if (doc == -1)

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

        System.out.println("File name: " + p.pcos_get_string(doc, "filename"));

        int pagecount = (int) p.pcos_get_number(doc, "length:pages");

        for (int page = 0; page < pagecount; page++) {

            String objtype = p.pcos_get_string(doc, "type:pages[" + page

                + "]/PieceInfo/PDFlib/Private/Blocks");

            if (objtype.equals("null"))

                continue;

            int blockcount = (int) p.pcos_get_number(doc, "length:pages["

                + page + "]/PieceInfo/PDFlib/Private/Blocks");

            if (blockcount == 0)

                continue;

            else

                System.out.println("Blocks on page " + (page + 1) + ":");

            for (int b = 0; b < blockcount; b++) {

                String val = p.pcos_get_string(doc, "pages[" + page + "]"

                    + "/PieceInfo/PDFlib/Private/Blocks" + "[" + b

                    + "]/Subtype");

                System.out.print(val + " Block ");

                val = p.pcos_get_string(doc, "pages[" + page + "]"

                    + "/PieceInfo/PDFlib/Private/Blocks" + "[" + b + "]/Name");

                System.out.println("'" + val + "':");

                for (int j = 0; j < 4; j++) {

                    System.out.print(p.pcos_get_number(doc, "pages[" + page

                        + "]" + "/PieceInfo/PDFlib/Private/Blocks" + "[" + b

                        + "]/Rect[" + j + "]")

                        + " ");

                }

                System.out.println();

            }

        }

        p.close_document(doc);

    }

    public blocks(String[] argv, String readable_name, String search_path,

        String full_rcs_file_name, String revision) {

        super(argv, readable_name, search_path, full_rcs_file_name, revision);

    }

    public static void main(String argv[]) {

        blocks example = new blocks(argv, "PDFlib Blocks", SEARCH_PATH,

            "$RCSfile: blocks.java,v $", "$Revision: 1.6 $");

        example.execute();

    }

}