Home Java Itext Uses Of Chunk Object

Uses Of Chunk Object
Posted on: March 13, 2008 at 12:00 AM

In this section, you will learn how we can change the background color and how we can create the subscript and superscript. iText api provides a setTextrise(float value1) and setBackground(Color color) method to set the position of text and to set the

Uses Of Chunk Object

In this section, you will learn how we can change the background color and how we can create the subscript and superscript. iText api provides a setTextrise(float value1) and setBackground(Color color) method to set the position of text and to set the background. We can set float value as positive or negative .Positive value is used for Superscript and negative value used for subscript.

Code Description:
The setTextRise(float f) method is used to set subscript and superscript. The more about setTextRise(float rise)

setTextRise:

public Chunk setTextRise(float rise)is used to sets the text displacement relative to the baseline. Positive values rise the text, negative values lower the text. It can be used to implement sub/superscript.

One more method to getTextRise is:

getTextRise
public float getTextRise()is used to gets the text displacement relatiev to the baseline.

The code of the program is given below:


import java.awt.Color;

import java.io.FileOutputStream;

import java.io.IOException;

import com.lowagie.text.Chunk;

import com.lowagie.text.Document;

import com.lowagie.text.DocumentException;

import com.lowagie.text.pdf.PdfContentByte;

import com.lowagie.text.pdf.PdfWriter;

public class UsesOfChunks 

  {

public static void main(String[] args)throws Exception 

  {

  System.out.println("The Chunk object");

  Document document = new Document();

  PdfWriter.getInstance(document,

new FileOutputStream("Chunks.pdf"));

  document.open();

  Chunk chunk = new Chunk("Rose India");

  chunk.setTextRise(6.0f);

  chunk.setBackground(new Color(0xFc, 0xDc, 0xAc));

  Chunk chunk3 = new Chunk(" roseindia.net ");

  Chunk chunk2 = new Chunk("rose");

  chunk2.setTextRise(-8.0f);

  chunk2.setUnderline(new Color(0xFF, 0x0c, 0x0c),

 3.0f, 0.0f, 3.0f, 0.0f,PdfContentByte.LINE_CAP_ROUND);

  document.add(chunk);

  document.add(chunk2);

  document.add(chunk3);

  document.close();

  }

}

The output of the program is given below:

Download this example.

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