Java PdfContentByte.rectangle方法代码示例

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * @see com.lowagie.text.pdf.PdfPTableEvent#tableLayout(com.lowagie.text.pdf.PdfPTable,
 *      float[][], float[], int, int, com.lowagie.text.pdf.PdfContentByte[])
 */
public void tableLayout(PdfPTable table, float[][] width, float[] height, int headerRows, int rowStart,
		PdfContentByte[] canvases) {
	float widths[] = width[0];
	float x1 = widths[0];
	float x2 = widths[widths.length - 1];
	float y1 = height[0];
	float y2 = height[height.length - 1];
	PdfContentByte canvas = canvases[PdfPTable.LINECANVAS];
	canvas.setRGBColorStroke(0x00, 0x00, 0xFF);
	canvas.rectangle(x1, y1, x2 - x1, y2 - y1);
	canvas.stroke();
	canvas.resetRGBColorStroke();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * @see com.lowagie.text.pdf.PdfPCellEvent#cellLayout(com.lowagie.text.pdf.PdfPCell,
 *      com.lowagie.text.Rectangle, com.lowagie.text.pdf.PdfContentByte[])
 */
public void cellLayout(PdfPCell cell, Rectangle position, PdfContentByte[] canvases) {
	float x1 = position.getLeft() + 2;
	float x2 = position.getRight() - 2;
	float y1 = position.getTop() - 2;
	float y2 = position.getBottom() + 2;
	PdfContentByte canvas = canvases[PdfPTable.LINECANVAS];
	canvas.setRGBColorStroke(0xFF, 0x00, 0x00);
	canvas.rectangle(x1, y1, x2 - x1, y2 - y1);
	canvas.stroke();
	canvas.resetRGBColorStroke();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 *
 * @param cb
 * @param foreground
 * @param moduleSide
 */
public void placeBarcode(PdfContentByte cb, Color foreground, float moduleSide) {

    int width = bm.getWidth();
    int height = bm.getHeight();
    byte[][] mt = bm.getArray();

    cb.setColorFill(foreground);

    for (int y = 0; y < height; ++y) {
        byte[] line = mt[y];
        for (int x = 0; x < width; ++x) {
            if (line[x] == 0) {
                cb.rectangle(x * moduleSide, (height - y - 1) * moduleSide, moduleSide, moduleSide);
            }
        }
    }

    cb.fill();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
    * Draws some shapes.
    */
@Test
public void main() throws Exception {
       
       
       // step 1: creation of a document-object
       Document document = new Document();
       
       try {
           
           // step 2:
           // we create a writer that listens to the document
           // and directs a PDF-stream to a file
           PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream( "shapes.pdf"));
           
           // step 3: we open the document
           document.open();
           
           // step 4: we grab the ContentByte and do some stuff with it
           PdfContentByte cb = writer.getDirectContent();
           
           // an example of a rectangle with a diagonal in very thick lines
           cb.setLineWidth(10f);
           // draw a rectangle
           cb.rectangle(100, 700, 100, 100);
           // add the diagonal
           cb.moveTo(100, 700);
           cb.lineTo(200, 800);
           // stroke the lines
           cb.stroke();
           
           // an example of some circles
           cb.setLineDash(3, 3, 0);
           cb.setRGBColorStrokeF(0f, 255f, 0f);
           cb.circle(150f, 500f, 100f);
           cb.stroke();
           
           cb.setLineWidth(5f);
           cb.resetRGBColorStroke();
           cb.circle(150f, 500f, 50f);
           cb.stroke();
           
           // example with colorfill
           cb.setRGBColorFillF(0f, 255f, 0f);
           cb.moveTo(100f, 200f);
           cb.lineTo(200f, 250f);
           cb.lineTo(400f, 150f);
           // because we change the fill color BEFORE we stroke the triangle
           // the color of the triangle will be red instead of green
           cb.setRGBColorFillF(255f, 0f, 0f);
           cb.closePathFillStroke();
           
           cb.sanityCheck();
       }
       catch(DocumentException de) {
           System.err.println(de.getMessage());
       }
       catch(IOException ioe) {
           System.err.println(ioe.getMessage());
       }
       
       // step 5: we close the document
       document.close();
   }
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Prints a square and fills half of it with a gray rectangle.
 * @param x
 * @param y
 * @param cb
 * @throws Exception
 */
public static void pictureBackdrop(float x, float y, PdfContentByte cb) throws Exception {
    cb.setColorStroke(Color.black);
    cb.setColorFill(Color.red);
    cb.rectangle(x, y, 100, 200);
    cb.fill();
    cb.setLineWidth(2);
    cb.rectangle(x, y, 200, 200);
    cb.stroke();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Painting Patterns.
 * 
 * @param args
 *            no arguments needed
 */
@Test
public void main() throws Exception {


	// step 1: creation of a document-object
	Document document = new Document(PageSize.A4, 50, 50, 50, 50);

	// step 2:
	// we create a writer that listens to the document
	// and directs a PDF-stream to a file
	PdfWriter writer = PdfWriter.getInstance(document,
			PdfTestBase.getOutputStream("pattern.pdf"));

	// step 3: we open the document
	document.open();

	// step 4: we add some content
	PdfContentByte cb = writer.getDirectContent();
	PdfTemplate tp = cb.createTemplate(400, 300);
	PdfPatternPainter pat = cb.createPattern(15, 15, null);
	pat.rectangle(5, 5, 5, 5);
	pat.fill();
	pat.sanityCheck();

	PdfSpotColor spc_cmyk = new PdfSpotColor("PANTONE 280 CV",
			new CMYKColor(0.9f, .2f, .3f, .1f));
	SpotColor spot = new SpotColor(spc_cmyk, 0.25f);
	tp.setPatternFill(pat, spot, .9f);
	tp.rectangle(0, 0, 400, 300);
	tp.fill();
	tp.sanityCheck();

	cb.addTemplate(tp, 50, 50);
	PdfPatternPainter pat2 = cb.createPattern(10, 10, null);
	pat2.setLineWidth(2);
	pat2.moveTo(-5, 0);
	pat2.lineTo(10, 15);
	pat2.stroke();
	pat2.moveTo(0, -5);
	pat2.lineTo(15, 10);
	pat2.stroke();
	cb.setLineWidth(1);
	cb.setColorStroke(Color.black);
	cb.setPatternFill(pat2, Color.red);
	cb.rectangle(100, 400, 30, 210);
	cb.fillStroke();
	cb.setPatternFill(pat2, Color.green);
	cb.rectangle(150, 400, 30, 100);
	cb.fillStroke();
	cb.setPatternFill(pat2, Color.blue);
	cb.rectangle(200, 400, 30, 130);
	cb.fillStroke();
	cb.setPatternFill(pat2, new GrayColor(0.5f));
	cb.rectangle(250, 400, 30, 80);
	cb.fillStroke();
	cb.setPatternFill(pat2, new GrayColor(0.7f));
	cb.rectangle(300, 400, 30, 170);
	cb.fillStroke();
	cb.setPatternFill(pat2, new GrayColor(0.9f));
	cb.rectangle(350, 400, 30, 40);
	cb.fillStroke();

	cb.sanityCheck();

	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Prints a square and fills half of it with a gray rectangle.
 * 
 * @param x
 * @param y
 * @param cb
 * @throws Exception
 */
private static void pictureBackdrop(float x, float y, PdfContentByte cb)
		throws Exception {
	cb.setColorStroke(Color.black);
	cb.setColorFill(Color.gray);
	cb.rectangle(x, y, 100, 200);
	cb.fill();
	cb.setLineWidth(2);
	cb.rectangle(x, y, 200, 200);
	cb.stroke();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Writing vertical text.
 */
@Test
public void main() throws Exception {
	Document document = new Document(PageSize.A4, 50, 50, 50, 50);
	texts[3] = convertCid(texts[0]);
	texts[4] = convertCid(texts[1]);
	texts[5] = convertCid(texts[2]);
	PdfWriter writer = PdfWriter.getInstance(document,PdfTestBase.getOutputStream("vertical.pdf"));
	int idx = 0;
	document.open();
	PdfContentByte cb = writer.getDirectContent();
	for (int j = 0; j < 2; ++j) {
		BaseFont bf = BaseFont.createFont("KozMinPro-Regular", encs[j],	false);
		cb.setRGBColorStroke(255, 0, 0);
		cb.setLineWidth(0);
		float x = 400;
		float y = 700;
		float height = 400;
		float leading = 30;
		int maxLines = 6;
		for (int k = 0; k < maxLines; ++k) {
			cb.moveTo(x - k * leading, y);
			cb.lineTo(x - k * leading, y - height);
		}
		cb.rectangle(x, y, -leading * (maxLines - 1), -height);
		cb.stroke();
		VerticalText vt = new VerticalText(cb);
		vt.setVerticalLayout(x, y, height, maxLines, leading);
		vt.addText(new Chunk(texts[idx++], new Font(bf, 20)));
		vt.addText(new Chunk(texts[idx++], new Font(bf, 20, 0, Color.blue)));
		vt.go();
		vt.setAlignment(Element.ALIGN_RIGHT);
		vt.addText(new Chunk(texts[idx++],	new Font(bf, 20, 0, Color.orange)));
		vt.go();
		document.newPage();
	}
	document.close();

}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * @see com.lowagie.text.pdf.PdfPageEventHelper#onEndPage(com.lowagie.text.pdf.PdfWriter, com.lowagie.text.Document)
 */
public void onEndPage(PdfWriter writer, Document document) {
    PdfContentByte cb = writer.getDirectContent();
    cb.saveState();
    // write the headertable
    table.setTotalWidth(document.right() - document.left());
    table.writeSelectedRows(0, -1, document.left(), document.getPageSize().getHeight() - 50, cb);
    // compose the footer
    String text = "Page " + writer.getPageNumber() + " of ";
    float textSize = helv.getWidthPoint(text, 12);
    float textBase = document.bottom() - 20;
    cb.beginText();
    cb.setFontAndSize(helv, 12);
    // for odd pagenumbers, show the footer at the left
    if ((writer.getPageNumber() & 1) == 1) {
        cb.setTextMatrix(document.left(), textBase);
        cb.showText(text);
        cb.endText();
        cb.addTemplate(tpl, document.left() + textSize, textBase);
    }
    // for even numbers, show the footer at the right
    else {
        float adjust = helv.getWidthPoint("0", 12);
        cb.setTextMatrix(document.right() - textSize - adjust, textBase);
        cb.showText(text);
        cb.endText();
        cb.addTemplate(tpl, document.right() - adjust, textBase);
    }

    // draw a Rectangle around the page
    cb.setColorStroke(Color.orange);
    cb.setLineWidth(2);
    cb.rectangle(20, 20, document.getPageSize().getWidth() - 40, document.getPageSize().getHeight() - 40);
    cb.stroke();

    // starting on page 3, a watermark with an Image that is made transparent
    if (writer.getPageNumber() >= 3) {

        cb.setGState(gstate);
        cb.setColorFill(Color.red);
        cb.beginText();
        cb.setFontAndSize(helv, 48);
        cb.showTextAligned(Element.ALIGN_CENTER, "Watermark Opacity " + writer.getPageNumber(), document.getPageSize().getWidth() / 2, document.getPageSize().getHeight() / 2, 45);
        cb.endText();
        try {
            cb.addImage(headerImage, headerImage.getWidth(), 0, 0, headerImage.getHeight(), 440, 80);
        }
        catch(Exception e) {
            throw new ExceptionConverter(e);
        }
    }
    cb.restoreState();
    cb.sanityCheck();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Adding text at absolute positions.
 * 
 * @param args
 *            no arguments needed
 */
@Test
public void main() throws Exception {


	// step 1: creation of a document-object
	Document document = new Document();

	// step 2: creation of the writer
	PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("complextext.pdf"));

	// step 3: we open the document
	document.open();

	// step 4: we grab the ContentByte and do some stuff with it
	PdfContentByte cb = writer.getDirectContent();

	// first we draw some lines to be able to visualize the text alignment
	// functions
	cb.setLineWidth(0f);
	cb.moveTo(250, 500);
	cb.lineTo(250, 800);
	cb.moveTo(50, 700);
	cb.lineTo(400, 700);
	cb.moveTo(50, 650);
	cb.lineTo(400, 650);
	cb.moveTo(50, 600);
	cb.lineTo(400, 600);
	cb.stroke();

	File font = new File (PdfTestBase.RESOURCES_DIR + "/liberation-fonts-ttf/LiberationSans-Regular.ttf");
	// we construct a font
	BaseFont bf = BaseFont.createFont(font.getAbsolutePath(), BaseFont.IDENTITY_H, true);
	Font ft = new Font(bf, 12);
	// This is the text:
	String text = "\u0623\u0648\u0631\u0648\u0628\u0627, \u0628\u0631\u0645\u062c\u064a\u0627\u062a \u0627\u0644\u062d\u0627\u0633\u0648\u0628 + \u0627\u0646\u062a\u0631\u0646\u064a\u062a :";
	Phrase center = new Phrase(text + " Center", ft);
	ColumnText
			.showTextAligned(cb, PdfContentByte.ALIGN_CENTER, center, 250, 700, 0, PdfWriter.RUN_DIRECTION_RTL, 0);
	ColumnText.showTextAligned(cb, PdfContentByte.ALIGN_RIGHT, new Phrase(text + " Right", ft), 250, 650, 20,
			PdfWriter.RUN_DIRECTION_RTL, 0);
	ColumnText.showTextAligned(cb, PdfContentByte.ALIGN_LEFT, new Phrase("Some text Left aligned", ft), 250, 600,
			20);
	float size = ColumnText.getWidth(center, PdfWriter.RUN_DIRECTION_RTL, 0);
	cb.setRGBColorStroke(255, 0, 0);
	cb.rectangle(250 - size / 2, 690, size, 30);
	cb.stroke();

	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Creates a document with some PdfAnnotations.
 * 
 */
@Test
public void main() throws Exception {

	// step 1: creation of a document-object
	Document document = new Document();

	// step 2:
	PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("Annotations.pdf"));
	// step 3:
	writer.setPdfVersion(PdfWriter.VERSION_1_5);
	document.open();
	// step 4:
	PdfContentByte cb = writer.getDirectContent();
	// page 1
	PdfFileSpecification fs = PdfFileSpecification.fileExtern(writer, PdfTestBase.RESOURCES_DIR + "cards.mpg");
	writer.addAnnotation(PdfAnnotation.createScreen(writer, new Rectangle(200f, 700f, 300f, 800f), "cards.mpg", fs,
			"video/mpeg", true));
	PdfAnnotation a = new PdfAnnotation(writer, 200f, 550f, 300f, 650f, PdfAction.javaScript(
			"app.alert('Hello');\r", writer));
	document.add(new Chunk("click to trigger javascript").setAnnotation(a).setLocalDestination("top"));
	writer.addAnnotation(a);
	writer.addAnnotation(PdfAnnotation.createFileAttachment(writer, new Rectangle(100f, 650f, 150f, 700f),
			"This is some text", "some text".getBytes(), null, "some.txt"));
	writer.addAnnotation(PdfAnnotation.createText(writer, new Rectangle(200f, 400f, 300f, 500f), "Help",
			"This Help annotation was made with 'createText'", false, "Help"));
	writer.addAnnotation(PdfAnnotation.createText(writer, new Rectangle(200f, 250f, 300f, 350f), "Help",
			"This Comment annotation was made with 'createText'", true, "Comment"));
	cb.rectangle(200, 700, 100, 100);
	cb.rectangle(200, 550, 100, 100);
	cb.rectangle(200, 400, 100, 100);
	cb.rectangle(200, 250, 100, 100);
	cb.stroke();
	document.newPage();
	// page 2
	writer.addAnnotation(PdfAnnotation.createLink(writer, new Rectangle(200f, 700f, 300f, 800f),
			PdfAnnotation.HIGHLIGHT_TOGGLE, PdfAction.javaScript("app.alert('Hello');\r", writer)));
	writer.addAnnotation(PdfAnnotation.createLink(writer, new Rectangle(200f, 550f, 300f, 650f),
			PdfAnnotation.HIGHLIGHT_OUTLINE, "top"));
	writer.addAnnotation(PdfAnnotation.createLink(writer, new Rectangle(200f, 400f, 300f, 500f),
			PdfAnnotation.HIGHLIGHT_PUSH, 1, new PdfDestination(PdfDestination.FIT)));
	writer.addAnnotation(PdfAnnotation.createSquareCircle(writer, new Rectangle(200f, 250f, 300f, 350f),
			"This Comment annotation was made with 'createSquareCircle'", false));
	document.newPage();
	// page 3
	PdfContentByte pcb = new PdfContentByte(writer);
	pcb.setColorFill(new Color(0xFF, 0x00, 0x00));
	writer.addAnnotation(PdfAnnotation.createFreeText(writer, new Rectangle(200f, 700f, 300f, 800f),
			"This is some free text, blah blah blah", pcb));
	writer.addAnnotation(PdfAnnotation.createLine(writer, new Rectangle(200f, 550f, 300f, 650f), "this is a line",
			200, 550, 300, 650));
	writer.addAnnotation(PdfAnnotation.createStamp(writer, new Rectangle(200f, 400f, 300f, 500f),
			"This is a stamp", "Stamp"));
	writer.addAnnotation(PdfAnnotation.createPopup(writer, new Rectangle(200f, 250f, 300f, 350f),
			"Hello, I'm a popup!", true));
	cb.rectangle(200, 700, 100, 100);
	cb.rectangle(200, 550, 100, 100);
	cb.rectangle(200, 250, 100, 100);
	cb.stroke();

	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Creates documents with some simple annotations.
 * 
 */
@Test
public void main() throws Exception {

	// step 1: creation of a document-object
	Document document1 = new Document(PageSize.A4, 10, 10, 10, 10);
	Document document2 = new Document(PageSize.A4, 10, 10, 10, 10);

	// step 2:
	PdfWriter writer1 = PdfWriter.getInstance(document1, PdfTestBase.getOutputStream("SimpleAnnotations1.pdf"));
	PdfWriter writer2 = PdfWriter.getInstance(document2, PdfTestBase.getOutputStream("SimpleAnnotations2.pdf"));
	// step 3:
	writer2.setPdfVersion(PdfWriter.VERSION_1_5);
	document1.open();
	document2.open();
	// step 4:
	document1.add(new Paragraph("Each square on this page represents an annotation."));
	// document1
	PdfContentByte cb1 = writer1.getDirectContent();
	Annotation a1 = new Annotation("authors",
			"Maybe it's because I wanted to be an author myself that I wrote iText.", 250f, 700f, 350f, 800f);
	document1.add(a1);
	Annotation a2 = new Annotation(250f, 550f, 350f, 650f, new URL("http://www.lowagie.com/iText/"));
	document1.add(a2);
	Annotation a3 = new Annotation(250f, 400f, 350f, 500f, "http://www.lowagie.com/iText");
	document1.add(a3);
	Image image = Image.getInstance(PdfTestBase.RESOURCES_DIR + "iText.gif");
	image.setAnnotation(a3);
	document1.add(image);
	Annotation a4 = new Annotation(250f, 250f, 350f, 350f, PdfAction.LASTPAGE);
	document1.add(a4);
	// draw rectangles to show where the annotations were added
	cb1.rectangle(250, 700, 100, 100);
	cb1.rectangle(250, 550, 100, 100);
	cb1.rectangle(250, 400, 100, 100);
	cb1.rectangle(250, 250, 100, 100);
	cb1.stroke();
	// more content
	document1.newPage();
	for (int i = 0; i < 5; i++) {
		document1.add(new Paragraph("blahblahblah"));
	}
	document1.add(new Annotation("blahblah", "Adding an annotation without specifying coordinates"));
	for (int i = 0; i < 3; i++) {
		document1.add(new Paragraph("blahblahblah"));
	}
	document1.newPage();
	document1.add(new Chunk("marked chunk").setLocalDestination("mark"));
	
	File videoFile = new File(PdfTestBase.RESOURCES_DIR + "cards.mpg");
	File license = new File("LICENSE");

	// document2
	document2.add(new Paragraph("Each square on this page represents an annotation."));
	PdfContentByte cb2 = writer2.getDirectContent();
	Annotation a5 = new Annotation(100f, 700f, 200f, 800f, videoFile.getAbsolutePath(), "video/mpeg", true);
	document2.add(a5);
	Annotation a6 = new Annotation(100f, 550f, 200f, 650f, "SimpleAnnotations1.pdf", "mark");
	document2.add(a6);
	Annotation a7 = new Annotation(100f, 400f, 200f, 500f, "SimpleAnnotations1.pdf", 2);
	document2.add(a7);
	Annotation a8 = new Annotation(100f, 250f, 200f, 350f, license.getAbsolutePath(), null, null, null);
	document2.add(a8);
	// draw rectangles to show where the annotations were added
	cb2.rectangle(100, 700, 100, 100);
	cb2.rectangle(100, 550, 100, 100);
	cb2.rectangle(100, 400, 100, 100);
	cb2.rectangle(100, 250, 100, 100);
	cb2.stroke();

	// step 5: we close the document
	document1.close();
	document2.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Demonstrating the use of ColumnText
 */
@Test
public void main() throws Exception {

	// step 1: creation of a document-object
	Document document = new Document();

	// step 2:
	// we create a writer that listens to the document
	// and directs a PDF-stream to a file
	PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("columnsimple.pdf"));

	// step 3: we open the document
	document.open();

	// step 4:

	// we grab the ContentByte and do some stuff with it
	PdfContentByte cb = writer.getDirectContent();

	BaseFont bf = BaseFont.createFont(BaseFont.COURIER, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
	Font font = new Font(bf, 11, Font.NORMAL);

	ColumnText ct = new ColumnText(cb);
	ct.setSimpleColumn(60, 300, 100, 300 + 28 * 15, 15, Element.ALIGN_CENTER);
	ct.addText(new Phrase(15, "UNI\n", font));
	for (int i = 0; i < 27; i++) {
		ct.addText(new Phrase(15, uni[i] + "\n", font));
	}
	ct.go();
	cb.rectangle(103, 295, 52, 8 + 28 * 15);
	cb.stroke();
	ct.setSimpleColumn(105, 300, 150, 300 + 28 * 15, 15, Element.ALIGN_RIGHT);
	ct.addText(new Phrase(15, "char\n", font));
	for (int i = 0; i < 27; i++) {
		ct.addText(new Phrase(15, code[i] + "\n", font));
	}
	ct.go();
	ct.setSimpleColumn(160, 300, 500, 300 + 28 * 15, 15, Element.ALIGN_LEFT);
	ct.addText(new Phrase(15, "NAME" + "\n", font));
	for (int i = 0; i < 27; i++) {
		ct.addText(new Phrase(15, name[i] + "\n", font));
	}
	ct.go();

	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Demonstrating the use of ColumnText
 */
@Test
public void main() throws Exception {

	// step 1: creation of a document-object
	Document document = new Document();

	// step 2: creation of the writer
	PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("column.pdf"));

	// step 3: we open the document
	document.open();

	// step 4:

	// we create some content
	BaseFont bf = BaseFont.createFont(BaseFont.COURIER, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
	Font font = new Font(bf, 11, Font.NORMAL);

	Phrase unicodes = new Phrase(15, "UNI\n", font);
	Phrase characters = new Phrase(15, "\n", font);
	Phrase names = new Phrase(15, "NAME\n", font);

	for (int i = 0; i < 27; i++) {
		unicodes.add(uni[i] + "\n");
		characters.add(code[i] + "\n");
		names.add(name[i] + "\n");
	}

	// we grab the ContentByte and do some stuff with it
	PdfContentByte cb = writer.getDirectContent();

	ColumnText ct = new ColumnText(cb);
	ct.setSimpleColumn(unicodes, 60, 300, 100, 300 + 28 * 15, 15, Element.ALIGN_CENTER);
	ct.go();
	cb.rectangle(103, 295, 52, 8 + 28 * 15);
	cb.stroke();
	ct.setSimpleColumn(characters, 105, 300, 150, 300 + 28 * 15, 15, Element.ALIGN_RIGHT);
	ct.go();
	ct.setSimpleColumn(names, 160, 300, 500, 300 + 28 * 15, 15, Element.ALIGN_LEFT);
	ct.go();

	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * @see com.lowagie.text.pdf.PdfPTableEvent#tableLayout(com.lowagie.text.pdf.PdfPTable, float[][], float[], int, int, com.lowagie.text.pdf.PdfContentByte[])
 */
public void tableLayout(PdfPTable table, float[][] width, float[] heights, int headerRows, int rowStart, PdfContentByte[] canvases) {
	
	// widths of the different cells of the first row
    float widths[] = width[0];
    
    PdfContentByte cb = canvases[PdfPTable.TEXTCANVAS];
    cb.saveState();
	// border for the complete table
    cb.setLineWidth(2);
    cb.setRGBColorStroke(255, 0, 0);
    cb.rectangle(widths[0], heights[heights.length - 1], widths[widths.length - 1] - widths[0], heights[0] - heights[heights.length - 1]);
    cb.stroke();
    
    // border for the header rows
    if (headerRows > 0) {
        cb.setRGBColorStroke(0, 0, 255);
        cb.rectangle(widths[0], heights[headerRows], widths[widths.length - 1] - widths[0], heights[0] - heights[headerRows]);
        cb.stroke();
    }
    cb.restoreState();
    
    cb = canvases[PdfPTable.BASECANVAS];
    cb.saveState();
    // border for the cells
    cb.setLineWidth(.5f);
    // loop over the rows
    for (int line = 0; line < heights.length - 1; ++line) {
        widths = width[line];
    	// loop over the columns
        for (int col = 0; col < widths.length - 1; ++col) {
            if (line == 0 && col == 0)
                cb.setAction(new PdfAction("http://www.lowagie.com/iText/"),
                    widths[col], heights[line + 1], widths[col + 1], heights[line]);
            cb.setRGBColorStrokeF((float)Math.random(), (float)Math.random(), (float)Math.random());
            // horizontal borderline
            cb.moveTo(widths[col], heights[line]);
            cb.lineTo(widths[col + 1], heights[line]);
            cb.stroke();
            // vertical borderline
            cb.setRGBColorStrokeF((float)Math.random(), (float)Math.random(), (float)Math.random());
            cb.moveTo(widths[col], heights[line]);
            cb.lineTo(widths[col], heights[line + 1]);
            cb.stroke();
        }
    }
    cb.restoreState();
}