itextpdf-master/itext/src/test/java/com/itextpdf/text/ChunkTest.java
/*
    This file is part of the iText (R) project.
    Copyright (c) 1998-2022 iText Group NV
    Authors: iText Software.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License version 3
    as published by the Free Software Foundation with the addition of the
    following permission added to Section 15 as permitted in Section 7(a):
    FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
    ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
    OF THIRD PARTY RIGHTS
    
    This program is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    or FITNESS FOR A PARTICULAR PURPOSE.
    See the GNU Affero General Public License for more details.
    You should have received a copy of the GNU Affero General Public License
    along with this program; if not, see http://www.gnu.org/licenses or write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA, 02110-1301 USA, or download the license from the following URL:
    http://itextpdf.com/terms-of-use/
    
    The interactive user interfaces in modified source and object code versions
    of this program must display Appropriate Legal Notices, as required under
    Section 5 of the GNU Affero General Public License.
    
    In accordance with Section 7(b) of the GNU Affero General Public License,
    a covered work must retain the producer line in every PDF that is created
    or manipulated using iText.
    
    You can be released from the requirements of the license by purchasing
    a commercial license. Buying such a license is mandatory as soon as you
    develop commercial activities involving the iText software without
    disclosing the source code of your own applications.
    These activities include: offering paid services to customers as an ASP,
    serving PDFs on the fly in a web application, shipping iText with a closed
    source product.
    
    For more information, please contact iText Software Corp. at this
    address: sales@itextpdf.com
 */
/**
 * 
 */
package com.itextpdf.text;

import com.itextpdf.testutils.CompareTool;
import com.itextpdf.text.io.RandomAccessSourceFactory;
import com.itextpdf.text.pdf.*;
import com.itextpdf.text.pdf.draw.DottedLineSeparator;
import com.itextpdf.text.pdf.draw.LineSeparator;
import com.itextpdf.text.pdf.parser.*;
import junit.framework.Assert;
import org.junit.Before;
import org.junit.Test;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;

/**
 * @author redlab
 *
 */
public class ChunkTest {

	
	/**
	 * 
	 */
	private static final String _4SPACES = "    4spaces    ";
	private static final String _TAB = "\t4spaces    ";
    public static final String SOURCE11 = "./src/test/resources/com/itextpdf/text/Chunk/source11.pdf";
    public static final String SOURCE12 = "./src/test/resources/com/itextpdf/text/Chunk/source12.pdf";
    public static final String SOURCE13 = "./src/test/resources/com/itextpdf/text/Chunk/source13.pdf";
    public static final String SOURCE14 = "./src/test/resources/com/itextpdf/text/Chunk/source14.pdf";
    public static final String SOURCE15 = "./src/test/resources/com/itextpdf/text/Chunk/source15.pdf";
    public static final String SOURCE16 = "./src/test/resources/com/itextpdf/text/Chunk/source16.pdf";
    public static final String SOURCE17 = "./src/test/resources/com/itextpdf/text/Chunk/source17.pdf";
    public static final String SOURCE_FOLDER = "./src/test/resources/com/itextpdf/text/Chunk/";
    public static final String OUTFOLDER = "./target/com/itextpdf/test/Chunk";
    public static final String OUTTABSPACED = OUTFOLDER + "/tabspaceDocument.pdf";
    public static final String OUTABSPACEC = OUTFOLDER + "/tabspaceColumnText.pdf";
    public static final String OUTTABD = OUTFOLDER + "/tabDocument.pdf";
    public static final String OUTABC = OUTFOLDER + "/tabColumnText.pdf";
    public static final String OUTABSTOPSC = OUTFOLDER + "/tabstopsColumnText.pdf";
    public static final String OUTSPTRIMDOC = OUTFOLDER + "/spaceTrimDoc.pdf";
    public static final String OUTSPTRIMCT = OUTFOLDER + "/spaceTrimColumnText.pdf";


    @Before
    public void Init() throws IOException{
        new File(OUTFOLDER).mkdirs();
        File f = new File(OUTTABSPACED.substring(0,32));
        if (!f.exists())
            f.mkdir();
    }
    
	@Test
	public void prependingWhitspaces() {
		Chunk c = new Chunk(_4SPACES);
		Assert.assertEquals("difference in string", _4SPACES, c.getContent());
	}
	@Test
	public void prependingTab() {
		Chunk c = new Chunk(_TAB);
		Assert.assertEquals("difference in string", "4spaces    ", c.getContent());
	}

    @Test
    public void tabspaceDocumentTest() throws Exception {
        Font f = FontFactory.getFont(FontFactory.COURIER, 11);
        FileOutputStream fs = new FileOutputStream(OUTTABSPACED);
        Document doc = new Document();
        PdfWriter writer = PdfWriter.getInstance(doc, fs);
        Paragraph p;
        writer.setCompressionLevel(0);
        doc.open();

        p = new Paragraph(new Chunk("Hello world", f));
        addTabspaces(p, f, 0);
        doc.add(p);

        p = new Paragraph(new Chunk("Hello World!!!"));
        addTabspaces(p, f, 0);
        doc.add(p);

        f.setSize(16);
        p = new Paragraph(new Chunk("Hello world", f));
        addTabspaces(p, f, 0);
        doc.add(p);

        f = FontFactory.getFont(FontFactory.TIMES_ROMAN, 12);
        p = new Paragraph(new Chunk("Hello world", f));
        addTabspaces(p, f, 0);
        doc.add(p);

        f.setSize(20);
        p = new Paragraph(new Chunk("Hello world", f));
        addTabspaces(p, f, 0);
        doc.add(p);

        doc.close();
        fs.close();
        Assert.assertTrue(compareInnerText(SOURCE11, OUTTABSPACED));
    }

    @Test
    public void tabspaceColumnTextTest() throws Exception {
        Font f = FontFactory.getFont(FontFactory.COURIER, 11);
        Document doc = new Document();
        Paragraph p;
        FileOutputStream fs = new FileOutputStream(OUTABSPACEC);
        PdfWriter writer = PdfWriter.getInstance(doc, fs);
        writer.setCompressionLevel(0);
        doc.open();
        ColumnText ct = new ColumnText(writer.getDirectContent());
        ct.setSimpleColumn(36, 36, 436, 800);
        p = new Paragraph(new Chunk("Hello world", f));
        addTabspaces(p, f, 0);
        ct.addElement(p);

        p = new Paragraph(new Chunk("Hello World!!!"));
        addTabspaces(p, f, 0);
        ct.addElement(p);

        f.setSize(16);
        p = new Paragraph(new Chunk("Hello world", f));
        addTabspaces(p, f, 0);
        ct.addElement(p);

        f = FontFactory.getFont(FontFactory.TIMES_ROMAN, 12);
        p = new Paragraph(new Chunk("Hello world", f));
        addTabspaces(p, f, 0);
        ct.addElement(p);

        f.setSize(20);
        p = new Paragraph(new Chunk("Hello world", f));
        addTabspaces(p, f, 0);
        ct.addElement(p);
        ct.go();
        doc.close();
        fs.close();
        Assert.assertTrue(compareInnerText(SOURCE12, OUTABSPACEC));
    }

    @Test
    public void tabDocumentTest() throws Exception {
        Font f = FontFactory.getFont(FontFactory.COURIER, 11);
        FileOutputStream fs = new FileOutputStream(OUTTABD);
        Document doc = new Document();
        PdfWriter writer = PdfWriter.getInstance(doc, fs);
        Paragraph p;
        java.util.List<TabStop> tabStopsList = new ArrayList<TabStop>();
        tabStopsList.add(new TabStop(100, new DottedLineSeparator()));
        tabStopsList.add(new TabStop(200, new LineSeparator(), TabStop.Alignment.CENTER));
        tabStopsList.add(new TabStop(300, new DottedLineSeparator(), TabStop.Alignment.RIGHT));
        writer.setCompressionLevel(0);
        doc.open();

        p = new Paragraph(new Chunk("Hello world", f));
        addTabs(p, f, 0, "la|la");
        p.setTabSettings(new TabSettings(tabStopsList, 50));
        doc.add(p);

        tabStopsList = new ArrayList<TabStop>();
        tabStopsList.add(new TabStop(100, new DottedLineSeparator()));
        tabStopsList.add(new TabStop(200, new LineSeparator(), TabStop.Alignment.ANCHOR));
        tabStopsList.add(new TabStop(300, new DottedLineSeparator(), TabStop.Alignment.ANCHOR));
        p = new Paragraph(new Chunk("Hello World!!!"));
        p.setTabSettings(new TabSettings(tabStopsList, 50));
        addTabs(p, f, 12, "l.aal");
        addTabs(p, f, 12, "laa.l");
        addTabs(p, f, 12, "la.al");
        doc.add(p);

        f.setSize(16);
        tabStopsList = new ArrayList<TabStop>();
        tabStopsList.add(new TabStop(100, new DottedLineSeparator()));
        tabStopsList.add(new TabStop(200, new LineSeparator(), TabStop.Alignment.ANCHOR, ','));
        tabStopsList.add(new TabStop(300, new DottedLineSeparator(), TabStop.Alignment.ANCHOR));
        p = new Paragraph(new Chunk("Hello world", f));
        p.setTabSettings(new TabSettings(tabStopsList, 50));
        addTabs(p, f, 13, "l.aal");
        addTabs(p, f, 11, "l,aal");
        addTabs(p, f, 11, "laa.l");
        addTabs(p, f, 11, "laa,l");
        doc.add(p);

        f = FontFactory.getFont(FontFactory.TIMES_ROMAN, 12);
        p = new Paragraph(new Chunk("Hello world", f));
        p.setTabSettings(new TabSettings(38));
        addTabs(p, f, 0);
        doc.add(p);

        f.setSize(20);
        p = new Paragraph(new Chunk("Hello world", f));
        p.setTabSettings(new TabSettings(38));
        addTabs(p, f, 0);
        doc.add(p);

        doc.close();
        fs.close();
        Assert.assertTrue(compareInnerText(SOURCE13, OUTTABD));
    }

    @Test
    public void tabColumnTextTest() throws Exception {
        Font f = FontFactory.getFont(FontFactory.COURIER, 11);
        Document doc = new Document();
        Paragraph p;
        FileOutputStream fs = new FileOutputStream(OUTABC);
        PdfWriter writer = PdfWriter.getInstance(doc, fs);
        writer.setCompressionLevel(0);
        doc.open();
        ColumnText ct = new ColumnText(writer.getDirectContent());
        ct.setSimpleColumn(36, 36, 436, 800);
        java.util.List<TabStop> tabStopsList = new ArrayList<TabStop>();
        tabStopsList.add(new TabStop(100, new DottedLineSeparator()));
        tabStopsList.add(new TabStop(200, new LineSeparator(), TabStop.Alignment.CENTER));
        tabStopsList.add(new TabStop(300, new DottedLineSeparator(), TabStop.Alignment.RIGHT));
        p = new Paragraph(new Chunk("Hello world", f));
        p.setTabSettings(new TabSettings(tabStopsList, 50));
        addTabs(p, f, 0, "la|la");
        ct.addElement(p);

        tabStopsList = new ArrayList<TabStop>();
        tabStopsList.add(new TabStop(100, new DottedLineSeparator()));
        tabStopsList.add(new TabStop(200, new LineSeparator(), TabStop.Alignment.ANCHOR));
        tabStopsList.add(new TabStop(300, new DottedLineSeparator(), TabStop.Alignment.ANCHOR));
        p = new Paragraph(new Chunk("Hello World!!!"));
        p.setTabSettings(new TabSettings(tabStopsList, 50));
        addTabs(p, f, 12, "l.aal");
        addTabs(p, f, 12, "laa.l");
        addTabs(p, f, 12, "la.al");
        ct.addElement(p);

        f.setSize(16);
        p = new Paragraph(new Chunk("Hello world", f));
        tabStopsList = new ArrayList<TabStop>();
        tabStopsList.add(new TabStop(100, new DottedLineSeparator()));
        tabStopsList.add(new TabStop(200, new LineSeparator(), TabStop.Alignment.ANCHOR, ','));
        tabStopsList.add(new TabStop(300, new DottedLineSeparator(), TabStop.Alignment.ANCHOR));
        p.setTabSettings(new TabSettings(tabStopsList, 50));
        addTabs(p, f, 15, "l.aal");
        addTabs(p, f, 13, "laa,l");
        addTabs(p, f, 13, "laa.l");
        addTabs(p, f, 13, "l,aal");
        ct.addElement(p);

        f = FontFactory.getFont(FontFactory.TIMES_ROMAN, 12);
        p = new Paragraph(new Chunk("Hello world", f));
        p.setTabSettings(new TabSettings(38));
        addTabs(p, f, 0);
        ct.addElement(p);

        f.setSize(20);
        p = new Paragraph(new Chunk("Hello world", f));
        p.setTabSettings(new TabSettings(38));
        addTabs(p, f, 0);
        ct.addElement(p);
        ct.go();
        doc.close();
        fs.close();
        Assert.assertTrue(compareInnerText(SOURCE14, OUTABC));

    }

    @Test
    public void tabStopsColumnText() throws Exception{
        Document document = new Document(PageSize.A4);
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(OUTABSTOPSC));
        document.open();

        Font oFont1 = FontFactory.getFont(BaseFont.ZAPFDINGBATS, 15, Font.UNDEFINED);
        Font oFont2 = FontFactory.getFont(BaseFont.COURIER, 15, Font.UNDEFINED);
        Font oFont3 = FontFactory.getFont(BaseFont.TIMES_ROMAN, 15, Font.UNDEFINED);
        Font oFont4 = FontFactory.getFont(BaseFont.HELVETICA, 15, Font.UNDEFINED);
        Image oImg = Image.getInstance("./src/test/resources/com/itextpdf/text/Chunk/logo.gif");
        PdfContentByte canvas = writer.getDirectContentUnder();

        java.util.List<TabStop> tabStops = new ArrayList<TabStop>();
        //tabStops.add(new TabStop(100, new DottedLineSeparator()));
        //tabStops.add(new TabStop(200, new DottedLineSeparator()));
        tabStops.add(new TabStop(200, new DottedLineSeparator()));
        //tabStops.add(new TabStop(300, new DottedLineSeparator()));
        tabStops.add(new TabStop(400, new DottedLineSeparator()));
        //tabStops.add(new TabStop(500, new DottedLineSeparator()));
        //tabStops.add(new TabStop(550, new DottedLineSeparator()));

        Paragraph oPara = new Paragraph("Hello World! ", oFont1);
        oPara.setTabSettings(new TabSettings(tabStops));
        oPara.add(new Chunk("iText ® is a library that allows you to create and manipulate PDF documents.", oFont2));
        oPara.add(new Chunk("It enables developers looking to enhance web- and other applications with dynamic PDF docu", oFont3));
        oPara.add(Chunk.TABBING);
        oPara.add(new Chunk("ment generation and/or manipulation.", oFont3));
        oPara.add(new Chunk(oImg, 0, 0, true));
        //oPara.Add(new Chunk(new TestVerticalPositionMark()));
        oPara.add(Chunk.TABBING);
        oPara.add(new Chunk("Developers can use iText to:", oFont4));

        ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, new Phrase("|100"), 100, 500, 0);
        ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, new Phrase("|200"), 200, 500, 0);
        ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, new Phrase("|250"), 250, 500, 0);
        ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, new Phrase("|300"), 300, 500, 0);
        ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, new Phrase("|400"), 400, 500, 0);
        ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, new Phrase("|500"), 500, 500, 0);
        ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, new Phrase("|550"), 550, 500, 0);
        ColumnText oColTxt1 = new ColumnText(canvas);

        oColTxt1.setSimpleColumn(0, 400, 595, 500);
        oColTxt1.addElement(oPara);
        oColTxt1.go();

        document.close();
        Assert.assertTrue(compareInnerText(SOURCE15, OUTABSTOPSC));
    }

    @Test
    public void spaceTrimPdfDocumentTest() throws DocumentException, IOException {
        Document doc = new Document(PageSize.A4, 50, 30, 50, 30);
        PdfWriter writer = PdfWriter.getInstance(doc, new FileOutputStream(new File(OUTSPTRIMDOC)));
        doc.open();

        Phrase under = new Phrase();
        under.setFont(new Font(Font.FontFamily.TIMES_ROMAN, 12, Font.UNDERLINE));
        under.add(new Chunk(" 1                                                      1                                                                                                                             9      "));

        doc.add(under);

        doc.close();
        writer.close();

        PdfReader reader = new PdfReader(OUTSPTRIMDOC);
        MyTextRenderListener listener = new MyTextRenderListener();
        PdfContentStreamProcessor processor = new PdfContentStreamProcessor(listener);
        PdfDictionary pageDic = reader.getPageN(1);
        PdfDictionary resourcesDic = pageDic.getAsDict(PdfName.RESOURCES);
        processor.processContent(ContentByteUtils.getContentBytesForPage(reader, 1), resourcesDic);
        //should be 60, as in @spaceTrimColumnTextTest
        //Assert.assertTrue("Unexpected text length", listener.getText().length() == 60);
        Assert.assertTrue("Unexpected text length", listener.getText().length() == 77);
    }

    @Test
    public void spaceTrimColumnTextTest() throws DocumentException, IOException {
        Document doc = new Document(PageSize.A4, 50, 30, 50, 30);
        PdfWriter writer = PdfWriter.getInstance(doc, new FileOutputStream(new File(OUTSPTRIMCT)));
        doc.open();

        Phrase under = new Phrase();
        under.setFont(new Font(Font.FontFamily.TIMES_ROMAN, 12, Font.UNDERLINE));
        under.add(new Chunk(" 1                                                      1                                                                                                                             9      "));

        Paragraph underlineTest = new Paragraph(under);
        underlineTest.setKeepTogether(true);
        doc.add(underlineTest);

        doc.close();
        writer.close();

        PdfReader reader = new PdfReader(OUTSPTRIMCT);
        MyTextRenderListener listener = new MyTextRenderListener();
        PdfContentStreamProcessor processor = new PdfContentStreamProcessor(listener);
        PdfDictionary pageDic = reader.getPageN(1);
        PdfDictionary resourcesDic = pageDic.getAsDict(PdfName.RESOURCES);
        processor.processContent(ContentByteUtils.getContentBytesForPage(reader, 1), resourcesDic);
        Assert.assertTrue("Unexpected text length", listener.getText().length() == 60);
    }

    @Test
    public void TabStopOutOfPageBoundDocumentTest() throws DocumentException, IOException {
        Document doc = new Document(PageSize.A4, 36, 36, 0, 30);
        PdfWriter writer = PdfWriter.getInstance(doc, new FileOutputStream(OUTFOLDER + "/tabStopOutDocument.pdf"));
        doc.open();
        Font f = FontFactory.getFont(FontFactory.COURIER, 11);
        f.setSize(16);
        Paragraph p = new Paragraph(Chunk.TABBING);
        p.add(new Chunk("Hello world", f));
        ArrayList<TabStop> tabStopsList = new ArrayList<TabStop>();
        tabStopsList.add(new TabStop(1000, new DottedLineSeparator()));
        tabStopsList.add(new TabStop(1050, new LineSeparator(), TabStop.Alignment.ANCHOR, ','));
        tabStopsList.add(new TabStop(1100, new DottedLineSeparator(), TabStop.Alignment.ANCHOR));
        p.setTabSettings(new TabSettings(tabStopsList, 50));
        addTabs(p, f, 15, "l.aal");
        addTabs(p, f, 13, "laa,l");
        addTabs(p, f, 13, "laa.l");
        addTabs(p, f, 13, "l,aal");

        doc.add(p);
        doc.close();
        writer.close();
        Assert.assertTrue(compareInnerText(SOURCE16, OUTFOLDER + "/tabStopOutDocument.pdf"));
    }

    @Test
    public void TabStopOutOfPageBoundColumnTextTest() throws DocumentException, IOException {
        Font f = FontFactory.getFont(FontFactory.COURIER, 11);
        Document doc = new Document();
        Paragraph p;
        FileOutputStream fs = new FileOutputStream(OUTFOLDER + "/tabStopOutColumnText.pdf");
        PdfWriter writer = PdfWriter.getInstance(doc, fs);
        writer.setCompressionLevel(0);
        doc.open();
        ColumnText ct = new ColumnText(writer.getDirectContent());
        ct.setSimpleColumn(36, 0, 436, 836);
        f.setSize(16);
        p = new Paragraph(Chunk.TABBING);
        p.add(new Chunk("Hello world", f));
        ArrayList<TabStop> tabStopsList = new ArrayList<TabStop>();
        tabStopsList.add(new TabStop(1000, new DottedLineSeparator()));
        tabStopsList.add(new TabStop(1050, new LineSeparator(), TabStop.Alignment.ANCHOR, ','));
        tabStopsList.add(new TabStop(1100, new DottedLineSeparator(), TabStop.Alignment.ANCHOR));
        p.setTabSettings(new TabSettings(tabStopsList, 50));
        addTabs(p, f, 15, "l.aal");
        addTabs(p, f, 13, "laa,l");
        addTabs(p, f, 13, "laa.l");
        addTabs(p, f, 13, "l,aal");
        ct.addElement(p);
        ct.go();
        doc.close();
        writer.close();
        Assert.assertTrue(compareInnerText(SOURCE17, OUTFOLDER + "/tabStopOutColumnText.pdf"));
    }

    private static class MyTextRenderListener implements RenderListener {
        protected StringBuffer buffer = new StringBuffer();

        public void beginTextBlock() {
        }

        public void endTextBlock() {
        }

        public void renderImage(ImageRenderInfo renderInfo) {
        }

        public void renderText(TextRenderInfo renderInfo) {
            buffer.append(renderInfo.getText());
            buffer.append("\n");
        }
        public String getText(){
            return buffer.toString();
        }
    }

    public void addTabspaces(Paragraph p, Font f, int count)
    {
        p.add(Chunk.createTabspace());
        p.add(new Chunk("|", f));
        if (count == 16)
            return;
        else
            addTabspaces(p, f, count + 1);
    }

    public void addTabs(Paragraph p, Font f, int count, String text)
    {
        p.add(Chunk.TABBING);
        p.add(new Chunk(text, f));
        if (count == 17)
            return;
        else
            addTabs(p, f, count + 1, text);
    }

    public void addTabs(Paragraph p, Font f, int count)
    {
        p.add(Chunk.TABBING);
        p.add(new Chunk("|", f));
        if (count == 17)
            return;
        else
            addTabs(p, f, count + 1);
    }

    public boolean compareInnerText(String path1, String path2) throws IOException{
        PdfReader reader1 = new PdfReader(path1);
        byte[] streamBytes1 = reader1.getPageContent(1);
        PRTokeniser tokenizer1 = new PRTokeniser(new RandomAccessFileOrArray(new RandomAccessSourceFactory().createSource(streamBytes1)));
        


        PdfReader reader2 = new PdfReader(path2);
        byte[] streamBytes2 = reader2.getPageContent(1);
        PRTokeniser tokenizer2 = new PRTokeniser(new RandomAccessFileOrArray(new RandomAccessSourceFactory().createSource(streamBytes2)));

        try{
	        while (tokenizer1.nextToken()) {
	            if (!tokenizer2.nextToken())
	                return false;
	            else {
	                if (tokenizer1.getTokenType() != tokenizer2.getTokenType())
	                    return false;
	                else  {
	                    if (tokenizer1.getTokenType() == PRTokeniser.TokenType.NUMBER)
	                    {
	                        if (Math.abs(Float.parseFloat(tokenizer1.getStringValue())
	                                    -Float.parseFloat(tokenizer2.getStringValue())) > 0.1)
	                            return false;
	                    }
	                    else
	                        if (!tokenizer1.getStringValue().equals(tokenizer2.getStringValue()))
	                            return false;
	                }
	
	            }
	        }
	        return true;
        } finally {
        	reader1.close();
        	reader2.close();
        }
    }

    @Test
    public void testImageChunkOnGenericTag() throws IOException, DocumentException, InterruptedException {
        String fileName = "testImageChunkOnGenericTag.pdf";
        FileOutputStream fos = new FileOutputStream(OUTFOLDER + fileName);
        Document doc = new Document(PageSize.LETTER);
        PdfWriter writer = PdfWriter.getInstance(doc, fos);
        writer.setPageEvent(new EventHandler());
        doc.open();

        Image img = Image.getInstance(writer.getDirectContent().createTemplate(100f, 25f));
        System.out.println(img.getHeight());
        Chunk c = new Chunk(img, 0, 0);
        c.setGenericTag("foobar");

        doc.add(c);
        doc.close();

        CompareTool compareTool = new CompareTool();
        String error = compareTool.compareByContent(OUTFOLDER + fileName, SOURCE_FOLDER + "cmp_" + fileName, OUTFOLDER, "diff_");
        if (error != null) {
            Assert.fail(error);
        }
    }

    class EventHandler extends PdfPageEventHelper {

        public  void onGenericTag(PdfWriter writer, Document document, Rectangle rect, String text) {
            PdfContentByte cb = writer.getDirectContent();
            cb.saveState();
            cb.setColorStroke(BaseColor.BLACK);
            cb.rectangle(rect.getLeft(), rect.getBottom(), rect.getWidth(), rect.getHeight());
            cb.stroke();
            cb.restoreState();

            writer.getDirectContent().beginText();
            Font f = FontFactory.getFont(BaseFont.COURIER, 8f);
            writer.getDirectContent().setFontAndSize(f.getBaseFont(), 8f);
            writer.getDirectContent().showTextAligned(Element.ALIGN_LEFT, String.valueOf(rect.getHeight()), rect.getLeft(), rect.getBottom(), 0);
            writer.getDirectContent().endText();
        }
    }

}
