Getting a single line from a JTextArea

Question

I have a JTextArea with a fixed size. I've used the .setLineWrap(true) and .setWrapStyleWord(true) on this JTextArea, so when the user types in some text, that's longer that the JTextArea, it will wrap unto the next line. I need to get each visible line from the JTextArea. That is not each line of text, that is seperated by a newline (when the user type Enter), but every line, that is visibly seperated in the JTextArea.
How can i do that.

Answer 1

The javax.swing.text.Utilities class can help:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
public class TestUtility extends JFrame
     public TestUtility()
          final JTextArea textArea = new JTextArea( "one two three four five", 5, 10 );
          textArea.setLineWrap( true );
          textArea.setWrapStyleWord( true );
          JScrollPane scrollPane = new JScrollPane( textArea );
          getContentPane().add( scrollPane );
          textArea.addCaretListener( new CaretListener()
               public void caretUpdate(CaretEvent e)
                    int pos = textArea.getCaretPosition();
                    try
                         int start =  Utilities.getRowStart(textArea, pos);
                         int end =  Utilities.getRowEnd(textArea, pos);
                         System.out.println( start + " : " + end );
                    catch (BadLocationException ble) {}
     public static void main(String[] args)
          TestUtility frame = new TestUtility();
          frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
          frame.pack();
          frame.setVisible(true);