PDFlib Cookbook

cookbook

interactive/form_checkbox

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/* $Id: form_checkbox.java,v 1.7 2013/01/15 10:12:00 stm Exp $
 * Form checkbox:
 * Create four form fields of type "checkbox".
 * 
 * Define four checkboxes for choosing some extras for the paper plane to order.
 * 
 * Required software: PDFlib/PDFlib+PDI/PPS 9
 * Required data: none
 */
package com.pdflib.cookbook.pdflib.interactive;

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

public class form_checkbox
{
    public static void main (String argv[])
    {
    /* This is where the data files are. Adjust as necessary */
    String searchpath = "../input";
    String outfile = "form_checkbox.pdf";
    String title = "Form Checkbox";
    
    pdflib p = null;

    String optlist;
    int font;
    double width=15, height=15, llx = 50, lly = 600;

    try {
        p = new pdflib();

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

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

        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 $");

        font = p.load_font("Helvetica", "winansi", "");
        if (font == -1)
            throw new Exception("Error: " + p.get_errmsg());
        
        /* Start page */
        p.begin_page_ext(0, 0, " width=a4.width height=a4.height");
        
        p.setfont(font, 12);
        
        /* Output a title text for the checkboxes */
        
        p.fit_textline("Choose paper plane extras:", llx, lly, "");
        lly-=40;
        
        /* Create several form fields of type "checkbox" which appear as
         * blue crosses (buttonstyle=cross fillcolor={rgb 0.25 0 0.95})
         * on a light blue background (backgroundcolor={rgb 0.95 0.95 1})
         * with a black border (bordercolor={gray 0}). 
         * Provide a tooltip.
         * Activate the first checkbox (currentvalue={On}).
         */
        optlist = "buttonstyle=cross bordercolor={gray 0} " +
            "backgroundcolor={rgb 0.95 0.95 1} fillcolor={rgb 0.25 0 0.95}";
        
        p.create_field(llx, lly, llx + width, lly + height, "paper", "checkbox", 
            optlist + " currentvalue={On}");
        
        /* Output the checkbox label */
        p.fit_textline("Glossy paper", llx + 30, lly, "boxsize={0 " + height +
            "} position={left center}");
        lly-=30;
        
        p.create_field(llx, lly, llx + width, lly + height, "color", "checkbox",
            optlist);
        
        p.fit_textline("Rainbow colors", llx + 30, lly, "boxsize={0 " + height +
            "} position={left center}");
        lly-=30;
        
        p.create_field(llx, lly, llx + width, lly + height, "perforation",
            "checkbox", optlist);
        
        p.fit_textline("Perforation", llx + 30, lly, "boxsize={0 " + height +
            "} position={left center}");
        lly-=30;
        
        p.create_field(llx, lly, llx + width, lly + height, "stability",
            "checkbox", optlist);
        
        p.fit_textline("High stability", llx + 30, lly, "boxsize={0 " + height +
            "} position={left center}");
       
        p.end_page_ext("");
        
        p.end_document("");

        } 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.getMessage());
        } finally {
            if (p != null) {
                p.delete();
            }
        }
    }
}