pages/blocks
Create a list of all blocks contained on the pages of a PDF document and show their name, type and dimensions.
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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 2.x, PDFlib 7.x, TET 2.2,
* PLOP 3.x)<br>
* Required data: PDF document
*
* @version $Id: blocks.java,v 1.3 2007/09/19 08:45:30 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.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 + "]/PieceInfo/PDFlib/Private/Blocks");
if (objtype.equals("null"))
continue;
int blockcount = (int) p.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.get_string(doc,
"pages[" + page + "]"
+ "/PieceInfo/PDFlib/Private/Blocks"
+ "[" + b + "]/Subtype");
System.out.print(val + " Block ");
val = p.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.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: 1.3 $");
example.execute();
}
}