interactive/annotations
Retrieve the contents of all annotations.
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.util.Locale;
import com.pdflib.pCOS;
import com.pdflib.pCOSException;
import com.pdflib.cookbook.pcos.pcos_cookbook_example;
/**
* Retrieve the contents of all annotations.
* <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: annotations.java,v 1.9 2010/10/28 07:38:48 stm Exp $
*/
public class annotations 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,
/* 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 annotations_path = "pages[" + page + "]/annots";
int anncount = (int) p.pcos_get_number(doc, "length:"
+ annotations_path);
if (anncount > 0) {
System.out.println("Page " + (page + 1));
for (int ann = 0; ann < anncount; ann++) {
print_annotation(p, doc, annotations_path, ann);
}
}
}
p.close_document(doc);
}
/**
* Print information about a single annotation on a page.
*
* @param p
* pCOS object
* @param doc
* document handle
* @param annotations_path
* the pCOS path for the "annotations" array on the page
* ("pages[n]/annotations", with n = 0, 1, 2, ...)
* @param ann
* index of the annotation in the "annotations" array of the
* page object
*
* @throws pCOSException
*/
private void print_annotation(pCOS p, int doc, String annotations_path,
int ann) throws pCOSException {
/*
* pCOS path for the annotation in question: "pages[n]/annotations[m]"
* with n = 0, 1, 2, ... and m = 0, 1, 2, ...
*/
String annotation_path = annotations_path + "[" + ann + "]";
/*
* Print the type of the annotation.
*/
String subtype = p.pcos_get_string(doc, annotation_path + "/Subtype");
System.out.print("Subtype " + subtype + ", ");
/*
* Print the rectangle for the annotation.
*/
System.out.print("Rectangle ");
String rect_path = annotation_path + "/Rect";
if (p.pcos_get_string(doc, "type:" + rect_path).equals("array")
&& (int) p.pcos_get_number(doc, "length:" + rect_path) == 4) {
System.out.print("[");
DecimalFormat format = new DecimalFormat();
format.setMinimumFractionDigits(0);
format.setMaximumFractionDigits(2);
format.setDecimalFormatSymbols(new DecimalFormatSymbols(Locale.US));
for (int i = 0; i < 4; i += 1) {
if (i > 0) {
System.out.print(" ");
}
System.out.print(format.format(p.pcos_get_number(doc, rect_path
+ "[" + i + "]")));
}
System.out.print("], ");
}
else {
System.out.print("<not available>, ");
}
/*
* Print the contents of the annotation if they are available.
*/
String objtype = p.pcos_get_string(doc, "type:" + annotation_path
+ "/Contents");
if (objtype.equals("string")) {
String contents = p.pcos_get_string(doc, annotation_path
+ "/Contents");
System.out.println("contents = '" + contents + "'");
}
else {
System.out.println("no contents found for annotation " + ann);
}
}
public annotations(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[]) {
annotations example = new annotations(argv, "Annotations", SEARCH_PATH,
"$RCSfile: annotations.java,v $", "$Revision: 1.9 $");
example.execute();
}
}