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interactive/form_textfield_input_format

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/* $Id: form_textfield_input_format.java,v 1.5 2013/01/15 10:12:00 stm Exp $

 * Form text field input format:

 * Format the data entered in a form field of type "textfield" according to

 * the rules defined.

 *

 * Create a text field for displaying a date and format the input as

 * "mmm dd yyyy.

 * Create a text field for displaying a price and format the input as

 * "x,xxx.xx" with the text " Euro" appended.

 *

 * 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_textfield_input_format

{

    public static void main (String argv[])

    {

    /* This is where the data files are. Adjust as necessary */

    String searchpath = "../input";

    String outfile = "form_textfield_input_format.pdf";

    String title = "Form Text Field Input Format";

   

    pdflib p = null;


    String optlist;

    int font, monospaced_font, format_action;

    double fontsize, ascender, descender;

    double width=160, height=30, llx = 10, lly = 700;


    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: 1.5 $");


        font = p.load_font("Helvetica", "winansi", "");

        if (font == -1)

            throw new Exception("Error: " + p.get_errmsg());

       

        monospaced_font = p.load_font("Courier", "winansi", "");

        if (monospaced_font == -1)

            throw new Exception("Error: " + p.get_errmsg());

       

        /* Start page */

        p.begin_page_ext(0, 0, " width=a4.width height=a4.height");

       

        /* ----------------------------------------------

         * Format a form text field for displaying a date

         * ----------------------------------------------

         *

         * Adjust the font size to match the field height. Then, descrease the

         * font size by e.g. 20% to leave some empty space from the field

         * borders.

         */

        ascender = p.info_font(monospaced_font, "ascender", "fontsize=" +

            height);

        descender = p.info_font(monospaced_font, "descender", "fontsize=" +

            height);

        fontsize = (ascender - descender) * 0.8;

       

        /* For a correct formatting of the date, define an action for the date

         * to be formatted according to "mmm dd yyyy".

         */

        format_action = p.create_action("JavaScript",

            "script={AFDate_FormatEx('mmm dd yyyy'); }");

     

        /* Create a form field of type "textfield" called "date" with the

         * JavaScript action supplied in the "action" option

         */

        optlist = "backgroundcolor={rgb 0.95 0.95 1} bordercolor={gray 0} " +

            "currentvalue={Oct 12 2007} maxchar=11 comb=true " +

            "scrollable=false tooltip={Enter a date} font=" + monospaced_font +

            " fontsize=" + fontsize + " action={format=" + format_action + "}";

       

        p.create_field(llx, lly, llx + width, lly + height, "date", "textfield",

            optlist);

        lly-=40;

       

        p.setfont(font, 12);

        p.fit_textline("Change the date.", llx, lly, "");

        p.fit_textline("After pressing \"Tab\" or \"Enter\", the date is " +

            "formatted as \"mmm dd yyy\".", llx, lly-=20, "");

        lly-=100;

       

       

        /* -----------------------------------------------

         * Format a form text field for displaying a price

         * -----------------------------------------------

         *

         * Adjust the font size to match the field height. Then, descrease the

         * font size by e.g. 20% to leave some empty space from the field

         * borders.

         */

        ascender = p.info_font(monospaced_font, "ascender", "fontsize=" +

            height);

        descender = p.info_font(monospaced_font, "descender", "fontsize=" +

            height);

        fontsize = (ascender - descender) * 0.8;

       

        /* For a correct formatting of the number, define an action which

         * formats the number as "x,xxx.xx", e.g. "1,200.50", and appends the

         * text " Euro".

         */

        format_action = p.create_action("JavaScript",

            "script={AFNumber_Format(2, 0, 0, 0, \" Euro\", false); }");

               

        /* Create a form field of type "textfield" called "price" with the

         * JavaScript action supplied in the "action" option

         */

        optlist = "backgroundcolor={rgb 0.95 0.95 1} bordercolor={gray 0} " +

            "maxchar=10 scrollable=false tooltip={Enter the price} " +

            "font=" + font + " fontsize=" + fontsize +

            " action={format=" + format_action + "}";

       

        width=250;

        p.create_field(llx, lly, llx + width, lly + height, "price",

            "textfield", optlist);

        lly-=40;

       

        p.setfont(font, 12);

        p.fit_textline("Enter a price, e.g. 150.95. A maximum of 10 digits " +

            "is allowed to be entered.", llx, lly, "");

        p.fit_textline("After pressing \"Tab\" or \"Enter\", the price is " +

            "formatted as \"x,xxx.xx\" with the text \" Euro\" appended.",

            llx, lly-=20, "");

       

        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();

            }

        }

    }

}