PDFlib Cookbook

cookbook

blocks/fill_converted_formfields

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/* $Id: fill_converted_formfields.java,v 1.7 2013/01/15 10:11:56 stm Exp $
 * Fill converted form fields:
 * Output an imported PDF page with its blocks being filled with different 
 * personalized data
 * 
 * Import a PDF page whose form fields have been converted to blocks.
 * Fill some blocks representing text fields, checkboxes and radio buttons
 * appropriately.   
 * 
 * Required software: PPS 9
 * Required data: PDF document containing blocks
 */
package com.pdflib.cookbook.pdflib.blocks;

import com.pdflib.pdflib;
import com.pdflib.PDFlibException;

public class fill_converted_formfields {
	public static void main(String argv[]) {
		/* This is where the data files are. Adjust as necessary. */
		String searchpath = "../input";
		String outfile = "fill_converted_formfields.pdf";
		String title = "Fill Converted Form Fields";

		pdflib p = null;
		double width, height;
		String infile = "form_with_blocks.pdf";
		int inpage, indoc;
		String text_optlist;

		/*
		 * The following blocks are contained in the imported page:
		 * "plane model" representing a text field "quantity" representing a
		 * text field "color" and "color_1" representing two radio buttons
		 * "perforation" and "glossy" representing two checkboxes
		 */
		try {
			p = new pdflib();

			p.set_option("searchpath={" + searchpath + "}");

			/* This means we must check return values of load_font() etc. */
			p.set_option("errorpolicy=return");

			if (p.begin_document(outfile, "") == -1)
				throw new Exception("Error: " + p.get_errmsg());

			p.set_info("Creator", "PDFlib Cookbook");
			p.set_info("Title", title + " $Revision: 1.7 $");

			/* Open a PDF containing blocks */
			indoc = p.open_pdi_document(infile, "");
			if (indoc == -1)
				throw new Exception("Error: " + p.get_errmsg());

			/* Open the first page */
			inpage = p.open_pdi_page(indoc, 1, "");
			if (inpage == -1)
				throw new Exception("Error: " + p.get_errmsg());

			/* Get the width and height of the imported page */
			width = p.pcos_get_number(indoc, "pages[0]/width");
			height = p.pcos_get_number(indoc, "pages[0]/height");

			/* Start the output page with the size given by the imported page */
			p.begin_page_ext(width, height, "");

			/* Place the imported page on the output page */
			p.fit_pdi_page(inpage, 0, 0, "");

			/* Fill the "plane model" block with some text */
			if (p.fill_textblock(inpage, "plane model", "Long Distance Glider",
					"encoding=unicode") == -1)
				System.err.println("Warning: " + p.get_errmsg());

			/* Fill the "quantity" text block with a quantity of 1 */
			if (p.fill_textblock(inpage, "quantity", "1", "encoding=unicode")
																== -1)
				System.err.println("Warning: " + p.get_errmsg());

			/*
			 * Fill the "color" block (representing a radiobutton) with a
			 * circle. The circle is supplied as "l". The encoding "builtin"
			 * will retrieve the circle symbol from the encoding which is
			 * integrated in the ZapfDingbats font. The following symbols are
			 * represented by the respective characters in the ZapfDingbats
			 * font: Check=4, Circle=1, Cross=8, Diamond=u, Square=n, Star=H
			 */
			text_optlist = 
				"fontname=ZapfDingbats encoding=builtin position=center";
			if (p.fill_textblock(inpage, "color", "l", text_optlist) == -1)
				System.err.println("Warning: " + p.get_errmsg());

			/*
			 * Fill the "color_1" block (for a radiobutton) with a space.
			 * Otherwise, the border of the block representing the empty check
			 * box would not be shown in the output document.
			 */
			text_optlist = 
				"fontname=ZapfDingbats encoding=builtin position=center";
			if (p.fill_textblock(inpage, "color_1", " ", text_optlist) == -1)
				System.err.println("Warning: " + p.get_errmsg());

			/*
			 * Fill the "perforation" block (for a checkbox) with a check mark
			 * encoded in Unicode.
			 */
			text_optlist = "fontname=ZapfDingbats fontsize=12 encoding=unicode "
					+ "position=center";
			if (p.fill_textblock(inpage, "perforation", "\u2714", text_optlist)
																	== -1)
				System.err.println("Warning: " + p.get_errmsg());

			/*
			 * Fill the "glossy" block (for a checkbox) with a space. Otherwise,
			 * the border of the block representing the empty check box would
			 * not be shown in the output document.
			 */
			text_optlist = "fontname=ZapfDingbats fontsize=12 encoding=unicode "
					+ "position=center";
			if (p.fill_textblock(inpage, "glossy", " ", text_optlist) == -1)
				System.err.println("Warning: " + p.get_errmsg());

			p.end_page_ext("");

			p.close_pdi_page(inpage);

			p.end_document("");
			p.close_pdi_document(indoc);
		}
		catch (PDFlibException e) {
			System.err.print("PDFlib exception occurred:\n");
			System.err.print("[" + e.get_errnum() + "] " + e.get_apiname()
					+ ": " + e.get_errmsg() + "\n");
		}
		catch (Exception e) {
			System.err.println(e.toString());
		}
		finally {
			if (p != null) {
				p.delete();
			}
		}
	}
}