package com.pdflib.cookbook.pcos.interactive;

import com.pdflib.pCOS;
import com.pdflib.pCOSException;
import com.pdflib.cookbook.pcos.pcos_cookbook_example;

/** 
 * Retrieve bounding box and URL of all Web links on the page.
 * <p>
 * Required software: pCOS interface 3 (pCOS 2.x, PDFlib 7.x, TET 2.2,
 * PLOP 3.x)<br>
 * Required data: PDF document
 * 
 * @version $Id: weblinks.java,v 1.3 2007/09/19 08:45:30 stm Exp $
 */
public class weblinks 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.get_string(doc, "filename"));
        
        int pagecount = (int) p.get_number(doc, "length:pages");

        for (int page = 0; page < pagecount; page++) {
            String objtype = p.get_string(doc,
                "type:pages[" + page + "]/Annots");
            if (objtype.equals("null"))
                continue;

            int anncount = (int) p.get_number(doc,
                "length:pages[" + page + "]/Annots");
            if (anncount == 0)
                continue;

            for (int ann = 0; ann < anncount; ann++) {
                String subtype = p.get_string(doc,
                    "pages[" + page + "]/Annots[" + ann + "]/Subtype");
                if (!subtype.equals("Link"))
                    continue;

                objtype = p.get_string(doc,
                    "type:pages[" + page + "]/Annots[" + ann + "]/A/URI");
                if (objtype.equals("string")) {
                    String url = p.get_string(doc,
                        "pages[" + page + "]/Annots[" + ann + "]/A/URI");
                    System.out.println("Page " + (page + 1) + ": " + url);

                    for (int j = 0; j < 4; j++) {
                        System.out.print(
                            p.get_number(doc,
                                "pages[" + page + "]"
                                + "/Annots[" + ann + "]/Rect[" + j + "]")
                            + " ");
                    }
                    System.out.println();
                }
            }
        }
        
        p.close_document(doc);
    }
    
    public weblinks(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[]) {
        weblinks example = new weblinks(argv,
            "Weblink data", SEARCH_PATH,
            "$RCSfile: weblinks.java,v $", "$Revision: 1.3 $");
        example.execute();
    }
}