questions.forms.KidsOnDifferentPages.java Source code

Introduction

Here is the source code for questions.forms.KidsOnDifferentPages.java

Source

/*
 * This example was written by Bruno Lowagie, author of the book
 * 'iText in Action' by Manning Publications (ISBN: 1932394796).
 * You can use this example as inspiration for your own applications.
 * The following license applies:
 * http://www.1t3xt.com/about/copyright/index.php?page=MIT
 */

package questions.forms;

import java.io.FileOutputStream;
import java.io.IOException;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.AcroFields;
import com.lowagie.text.pdf.PdfAnnotation;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfFormField;
import com.lowagie.text.pdf.PdfPCell;
import com.lowagie.text.pdf.PdfPCellEvent;
import com.lowagie.text.pdf.PdfPTable;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.pdf.TextField;
import com.lowagie.text.pdf.PdfStamper;

public class KidsOnDifferentPages implements PdfPCellEvent {

    public static final String FORM = "results/questions/forms/kids_different_pages.pdf";
    public static final String RESULT = "results/questions/forms/kids_different_pages_filled.pdf";

    protected PdfFormField parent;
    protected PdfFormField kid;
    protected float padding;
    protected int pageNo;

    public KidsOnDifferentPages(PdfFormField kid) {
        this.kid = kid;
    }

    public void cellLayout(PdfPCell cell, Rectangle rect, PdfContentByte[] cb) {
        kid.setWidget(new Rectangle(rect.getLeft(padding), rect.getBottom(padding), rect.getRight(padding),
                rect.getTop(padding)), PdfAnnotation.HIGHLIGHT_INVERT);
    }

    public static void main(String[] args) {
        createPdf();
        fillPdf();
    }

    public static void createPdf() {
        Document document = new Document();
        try {
            PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(FORM));
            document.open();

            // create the parent field and its kids
            PdfFormField person = PdfFormField.createEmpty(writer);
            person.setFieldName("person");
            // one kid on page 1
            TextField field1 = new TextField(writer, new Rectangle(0, 0), "name1");
            PdfFormField kid1 = field1.getTextField();
            kid1.setPlaceInPage(1);
            person.addKid(kid1);
            // another kid on page 2
            TextField field2 = new TextField(writer, new Rectangle(0, 0), "name2");
            PdfFormField kid2 = field2.getTextField();
            kid2.setPlaceInPage(2);
            person.addKid(kid2);
            writer.addAnnotation(person);

            // now add the page content
            document.add(createTable(kid1));
            document.newPage();
            document.add(createTable(kid2));
        } catch (DocumentException de) {
            System.err.println(de.getMessage());
        } catch (IOException ioe) {
            System.err.println(ioe.getMessage());
        }
        document.close();
    }

    private static PdfPTable createTable(PdfFormField kid) throws IOException, DocumentException {
        PdfPTable table = new PdfPTable(2);
        table.addCell("Your name:");
        PdfPCell cell = new PdfPCell();
        cell.setCellEvent(new KidsOnDifferentPages(kid));
        table.addCell(cell);
        return table;
    }

    public static void fillPdf() {
        try {
            PdfReader reader;
            PdfStamper stamper;
            reader = new PdfReader(FORM);
            stamper = new PdfStamper(reader, new FileOutputStream(RESULT));
            AcroFields form = stamper.getAcroFields();
            form.setField("person.name1", "hello");
            form.setField("person.name2", "world");
            stamper.close();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (DocumentException e) {
            e.printStackTrace();
        }
    }
}