form_fields/form_combobox
Create a form field of type "combobox" for choosing an item from a list or changing an existing item.
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<?php
/*
* Form combobox:
* Create a form field of type "combobox" for choosing an item from a list or
* changing an existing item.
*
* Required software: PDFlib/PDFlib+PDI/PPS 10
* Required data: none
*/
/* This is where the data files are. Adjust as necessary */
$searchpath = dirname(__FILE__,3)."/input";
$outfile = "";
$title = "Form Combobox";
$width=100; $height=18; $llx = 100; $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, "") == 0)
throw new Exception("Error: " . $p->get_errmsg());
$p->set_info("Creator", "PDFlib Cookbook");
$p->set_info("Title", $title );
$font = $p->load_font("NotoSerif-Regular", "winansi",
"simplefont nosubsetting");
if ($font == 0)
throw new Exception("Error: " . $p->get_errmsg());
/* Start page */
$p->begin_page_ext(0, 0, " width=a4.width height=a4.height");
/* Output a combobox title */
$p->setfont($font, 14);
$p->fit_textline("Choose a size from the list or enter an individual " .
"value:", $llx, $lly, "");
$lly-=30;
/* Create a form fields of type "combobox".
* Provide the box with a light gray background
* (backgroundcolor={gray 0.9}) and a gray border
* (bordercolor={gray 0.7}).
* Set the values for the combobox items (itemnamelist={0 1 2 3 4}).
* Set the labels for the combobox items (itemtextlist={...}).
* Set the focus on the last item (currentvalue=XXL).
* Allow the user to change an item (editable=true)
*/
$optlist = "font=" . $font . " fontsize=14 backgroundcolor={gray 0.9} " .
"bordercolor={gray 0.7} itemnamelist={0 1 2 3 4} currentvalue=XXL " .
"itemtextlist={S M L XL XXL} editable=true";
/* Create the field with a height similar to the height of one list
* item
*/
$p->create_field($llx, $lly, $llx + $width, $lly + $height, "size", "combobox",
$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=form_combobox.pdf");
print $buf;
} catch (PDFlibException $e) {
echo("PDFlib exception occurred:\n".
"[" . $e->get_errnum() . "] " . $e->get_apiname() .
": " . $e->get_errmsg() . "\n");
exit(1);
} catch (Throwable $e) {
echo("PHP exception occurred: " . $e->getMessage() . "\n");
exit(1);
}
$p = 0;
?>