PDFlib Cookbook

cookbook

form_fields/form_radiobutton

Create a field group with three form fields of type "radiobutton".

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/*
 * Form radio button:
 * Create a field group with three form fields of type "radiobutton".
 * 
 * Create a field group and three radio buttons.
 * 
 * Required software: PDFlib/PDFlib+PDI/PPS 9
 * Required data: none
 */
package com.pdflib.cookbook.pdflib.form_fields;

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

public class form_radiobutton
{
    public static void main (String argv[])
    {
        /* This is where the data files are. Adjust as necessary */
        String searchpath = "../input";
        String outfile = "form_radiobutton.pdf";
        String title = "Form Radiobutton";
        
        pdflib p = null;
        int exitcode = 0;

        String optlist;
        int font;
        double width=20, height=20, 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);

            font = p.load_font("NotoSerif-Regular", "winansi", 
                "simplefont embedding nosubsetting");
            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);
            
            /* First, create a form field group called "colors" */
            p.create_fieldgroup("colors", "fieldtype=radiobutton");
            

            p.fit_textline("Choose the paper plane color:", llx, lly, "");
            lly-=40;
            
            /* Then, create several form fields of type "radiobutton" which appear
            * as gray circles (buttonstyle=circle bordercolor={gray 0.8}). 
            * All fields belong to the "colors" field group. Indicate this
            * relationship by providing each radiobutton field name with the
            * prefix "colors.".
            * Activate the first radio button (currentvalue={On}).
            * Provide a tooltip. The tooltip is always shared by the group.
            */
            optlist = "buttonstyle=circle bordercolor={gray 0.8}";
            
            p.create_field(llx, lly, llx + width, lly + height, "colors.standard",
                "radiobutton", optlist + " currentvalue={On} " +
                "tooltip={Select a color for the paper plane}");
            
            /* Output the button label */
            p.fit_textline("Standard", llx + 30, lly, "boxsize={0 " + height +
                "} position={left center}");
            lly-=40;
            
            p.create_field(llx, lly, llx + width, lly + height, 
                "colors.yellow", "radiobutton", optlist);
            
            p.fit_textline("Yellow", llx + 30, lly, "boxsize={0 " + height +
                "} position={left center}");
            lly-=40;
            
            p.create_field(llx, lly, llx + width, lly + height, "colors.blue",
                "radiobutton", optlist);
            
            p.fit_textline("Blue", llx + 30, lly, "boxsize={0 " + height +
                "} position={left center}");
            lly-=40;
        
            p.end_page_ext("");
            
            p.end_document("");

        } catch (PDFlibException e) {
            System.err.println("PDFlib exception occurred:");
            System.err.println("[" + e.get_errnum() + "] " + e.get_apiname()
                + ": " + e.get_errmsg());
        exitcode = 1;
        } catch (Exception e) {
            System.err.println(e);
        exitcode = 1;
        } finally {
            if (p != null) {
                p.delete();
            }
        System.exit(exitcode);
        }
    }
}