form_fields/form_tab_order
Define the position of each form field in the tab order, i.e. when the user presses the "Tab" key.
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/*
* Form tab order:
* Define the position of each form field in the tab order, i.e. when the user
* presses the "Tab" key.
*
* By default the tab order of fields will be implicitly defined according to
* their creation order. Using the "taborder" option another tab order can
* be defined. Create a matrix of text fields row by row but define the tab
* order column by column.
*
* Required software: PDFlib/PDFlib+PDI/PPS 10
* Required data: none
*/
package com.pdflib.cookbook.pdflib.form_fields;
import com.pdflib.pdflib;
import com.pdflib.PDFlibException;
public class form_tab_order
{
public static void main (String argv[])
{
/* This is where the data files are. Adjust as necessary */
String searchpath = "../input";
String outfile = "form_tab_order.pdf";
String title = "Form Tab Order";
pdflib p = null;
int exitcode = 0;
String optlist;
int font, i, j, tab;
double width=130, height=30, llx = 10, 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 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, 14);
p.fit_textline("Press \"Tab\" to move from one field to the next in " +
"the tab order defined.", llx, lly, "");
/* Create a matrix of text fields row by row but define the tab order
* column by column (taborder=...). Each text fields show its position
* in the tab order (currentvalue={...}).
*/
optlist = "backgroundcolor={rgb 0.95 1 0.95} bordercolor={gray 0} " +
"alignment=center font=" + font + " fontsize=18";
lly-= 50;
for (i = 1; i <= 3; i++) {
for (j = 1, tab=i; j <= 3; j++, tab+=3) {
p.create_field(llx, lly, llx + width, lly + height,
"field" + tab, "textfield", optlist + " taborder=" + tab +
" currentvalue={tab position " + tab + "}");
llx+=width + 20;
}
llx = 10;
lly -= height + 30;
}
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);
}
}
}