questions.stamppages.BookmarksToTOC1.java Source code

Introduction

Here is the source code for questions.stamppages.BookmarksToTOC1.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.stamppages;

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.List;
import java.util.Map;

import com.lowagie.text.Chunk;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.ColumnText;
import com.lowagie.text.pdf.PdfAction;
import com.lowagie.text.pdf.PdfDestination;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.pdf.SimpleBookmark;

public class BookmarksToTOC1 {

    public static final String RESOURCE = "resources/questions/txt/caesar.txt";
    public static final String RESULT = "results/questions/stamppages/bookmarks2toc1.pdf";

    @SuppressWarnings("unchecked")
    public static void main(String[] args) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        try {
            Document document = new Document();
            PdfWriter writer = PdfWriter.getInstance(document, baos);
            writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
            writer.setPageEvent(new ParagraphBookmarkEvents(false));
            document.open();
            BufferedReader reader = new BufferedReader(new FileReader(RESOURCE));
            String line;
            Paragraph p;
            while ((line = reader.readLine()) != null) {
                p = new Paragraph(line);
                p.setAlignment(Element.ALIGN_JUSTIFIED);
                document.add(p);
                document.add(Chunk.NEWLINE);
            }
            reader.close();
            document.close();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (DocumentException e) {
            e.printStackTrace();
        }

        try {
            PdfReader reader = new PdfReader(baos.toByteArray());
            Rectangle rect = reader.getPageSizeWithRotation(1);
            PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(RESULT));
            stamper.insertPage(1, rect);
            ColumnText column = new ColumnText(stamper.getOverContent(1));
            column.setSimpleColumn(rect.getLeft(36), rect.getBottom(36), rect.getRight(36), rect.getTop(36));
            column.addElement(new Paragraph("TABLE OF CONTENTS"));
            List<Map> list = SimpleBookmark.getBookmark(reader);
            Chunk link;
            PdfAction action;
            String info;
            int p = 1;
            float y = 10;
            for (Map<String, String> bookmark : list) {
                link = new Chunk(bookmark.get("Title"));
                info = bookmark.get("Page");
                p = Integer.parseInt(info.substring(0, info.indexOf(' ')));
                y = Float.parseFloat(info.substring(info.lastIndexOf(' ') + 1) + "f");
                action = PdfAction.gotoLocalPage(p, new PdfDestination(PdfDestination.FITH, y),
                        stamper.getWriter());
                link.setAction(action);
                column.addElement(new Paragraph(link));
            }
            column.go();
            stamper.close();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (DocumentException e) {
            e.printStackTrace();
        }

    }
}