<?php
/*
*
* starter formfields:
* create a linearized PDF (for fast delivery over the Web, also known
* as "fast Web view") which is encrypted and contains some form fields.
* A few lines of JavaScript are inserted as "page open" action to
* automatically populate the date field with the current date.
*
* Required software: PDFlib/PDFlib+PDI/PPS 10
* Required data: font file
*/

/* This is where the data files are. Adjust as necessary. */
$searchpath = dirname(__FILE__,3)."/input";
$outfilename = "";

$llx=150; $lly=550; $urx=350; $ury=575;

/* JavaScript for automatically filling the date into a form field */
$js = "var d = util.printd(\"mm/dd/yyyy\", new Date()); " .
    "var date = this.getField(\"date\"); " .
    "date.value = d;";

try {
    $p = new PDFlib();

    /* This means we must check return values of load_font() etc. */
    $p->set_option("errorpolicy=return searchpath={{" . $searchpath . "}}");

    /* all strings are expected as utf8 */

    /*
     * Prevent changes with a master password.
     * Linearize with inmemory=true to avoid creation of temporary files on
     * disk.
     */
    $optlist =
        "linearize inmemory=true masterpassword=pdflib permissions={nomodify}";

    if ($p->begin_document($outfilename, $optlist) == 0) {
        throw new Exception("Error: " . $p->get_errmsg());
    }

    $p->set_info("Creator", "PDFlib starter sample");
    $p->set_info("Title", "starter_formfields");

    $optlist = "script[" . strlen($js) . "]={" . $js . "}";
    $action = $p->create_action("JavaScript", $optlist);

    $optlist = "action={open=" . $action . "}";
    $p->begin_page_ext(0, 0, "width=a4.width height=a4.height " . $optlist);

    $font = $p->load_font("NotoSerif-Regular", "winansi", 
        "simplefont nosubsetting");
    if ($font == 0) {
        throw new Exception("Error: " . $p->get_errmsg());
    }
    
    $p->setfont($font, 24);

    $p->fit_textline("Date: ", 125, $lly+5, "position={right bottom}");

    /* The tooltip will be used as rollover text for the field */
    $optlist =
        "tooltip={Date (will be filled automatically)} " .
        "bordercolor={gray 0} font=" . $font;
    $p->create_field($llx, $lly, $urx, $ury, "date", "textfield", $optlist);

    $lly-=100; $ury-=100;
    $p->fit_textline("Name: ", 125, $lly+5, "position={right bottom}");

    $optlist = "tooltip={Enter your name here} " .
        "bordercolor={gray 0} font=" . $font;
    $p->create_field($llx, $lly, $urx, $ury, "name", "textfield", $optlist);

    $p->end_page_ext("");

    $p->end_document("");

    $buf = $p->get_buffer();
    $len = strlen($buf);

    header("Content-type: application/pdf");
    header("Content-Length: $len");
    header("Content-Disposition: inline; filename=starter_formfields.pdf");
    print $buf;
}
catch (PDFlibException $e) {
    echo("PDFlib exception occurred in starter_formfields sample:\n" .
        "[" . $e->get_errnum() . "] " . $e->get_apiname() . ": " .
        $e->get_errmsg() . "\n");
    exit(1);
}
catch (Throwable $e) {
    echo($e);
    exit(1);
}

$p = 0;
?>