/*
* List the named destinations which are defined in the document.
* For each valid destination its destination page, type and parameters are listed.
*
* Required software: pCOS interface 8 (PDFlib+PDI/PPS 9, TET 4.1, PLOP 5.0)
* Required data: PDF document
*/
package com.pdflib.cookbook.pcos.interactive;
import com.pdflib.IpCOS;
import com.pdflib.cookbook.pcos.pcos_cookbook_example;
public class named_destinations extends pcos_cookbook_example {
/* This is where the data files are. Adjust as necessary. */
private final static String SEARCH_PATH = "../input";
private final static String KEY = "names/Dests";
// Convenience method for retrieving an object which may have type "number" or "null"
private String get_number_or_null(IpCOS p, int doc, String path) throws Exception
{
String objtype = p.pcos_get_string(doc, "type:" + path);
if (objtype.equals("number"))
return (String) p.pcos_get_string(doc, path);
else
return "unchanged"; // treat everything else as "null" which means "unchanged"
}
public void example_code(IpCOS p, int doc) throws Exception {
System.out.println("File name: " + p.pcos_get_string(doc, "filename"));
int destinationCount = (int) p.pcos_get_number(doc, "length:" + KEY);
int usedDestinationCount = 0;
for (int i = 0; i < destinationCount; ++i) {
/* The first element in the destination array contains the
* destination page's object number. The "destpage" pseudo object
* conveniently converts this to a page number.
*/
int destpage = (int) p.pcos_get_number(doc, KEY + "[" + i + "]/destpage");
/* Ignore destinations without any valid destination page. These
* probably referred to pages which have been deleted
*/
if (destpage == -1)
continue;
usedDestinationCount++;
System.out.print("named destination '" + p.pcos_get_string(doc, KEY + "[" + i + "].key") + "' ");
System.out.print("with destination page " + destpage);
/* Read the fitting type of the destination and analyze the corresponding parameters */
String fittype = p.pcos_get_string(doc, KEY + "[" + i + "].val/D[1]");
if (fittype.equals("XYZ")) {
System.out.print("\n fit with zoom (/XYZ):" +
" left=" + get_number_or_null(p, doc, KEY + "[" + i + "].val/D[2]") +
" top=" + get_number_or_null(p, doc, KEY + "[" + i + "].val/D[3]") +
" zoom=" + get_number_or_null(p, doc, KEY + "[" + i + "].val/D[4]"));
} else if (fittype.equals("Fit")) {
System.out.print("\n fit full page (/Fit)");
} else if (fittype.equals("FitH")) {
System.out.print("\n fit horizontally (/FitH)" +
" top=" + get_number_or_null(p, doc, KEY + "[" + i + "].val/D[2]"));
} else if (fittype.equals("FitV")) {
System.out.print("\n fit vertically (/FitV)" +
" left=" + get_number_or_null(p, doc, KEY + "[" + i + "].val/D[2]"));
} else if (fittype.equals("FitR")) {
System.out.print("\n fit rectangle (/FitR) [" +
get_number_or_null(p, doc, KEY + "[" + i + "].val/D[2]") + ", " +
get_number_or_null(p, doc, KEY + "[" + i + "].val/D[3]") + ", " +
get_number_or_null(p, doc, KEY + "[" + i + "].val/D[4]") + ", " +
get_number_or_null(p, doc, KEY + "[" + i + "].val/D[5]") + "]");
} else if (fittype.equals("FitB")) {
System.out.print("\n fit bounding box (/FitB)");
} else if (fittype.equals("FitBH")) {
System.out.print("\n fit bounding box horizontally (/FitBH)" +
" top=" + get_number_or_null(p, doc, KEY + "[" + i + "].val/D[2]"));
} else if (fittype.equals("FitBV")) {
System.out.print("\n fit bounding box vertically (/FitBV)" +
" left=" + get_number_or_null(p, doc, KEY + "[" + i + "].val/D[2]"));
}
System.out.println();
}
System.out.print(destinationCount + " named destinations found");
System.out.println(" (" + usedDestinationCount + " used)");
}
public named_destinations(String[] argv, String readable_name,
String search_path) {
super(argv, readable_name, search_path);
}
public static void main(String argv[]) {
named_destinations example = new named_destinations(argv,
"Named destinations", SEARCH_PATH);
example.execute();
}
}