Java SE (Java Platform, Standard Edition)

Hello Experts;

I need each of your help. I bielive that we can solve this in many heads than one which is mine. I'm developing an ide, the problem I'm encountering now is line highlight. I want to highlight the line where the cursor is. I have a small codes that highlights the line but it ends on the last charter of a text how would I be able to highlight the entire line on where the cursor is ?

Here's my code :

import java.awt.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;

public class TextHighlighter extends JFrame implements CaretListener {

	// The text pane to have highlighting
	private JTextPane textPane;

	// An instance of the private subclass of the default highlight painter
	Highlighter.HighlightPainter myHighlightPainter = new MyHighlightPainter(
			new Color(208, 208, 232));

	// Constructor for TextHighlighter
	public TextHighlighter() {

		super("Sample . . .");

		textPane = new JTextPane();

		Date date = new Date();
		String user = System.getProperty("user.name");

		textPane.addCaretListener(this);
		textPane.setText("/**\n * Created On : " + date + "\n * Author : "
				+ user + "\n */\n" + "\npublic class Sample" + " {\n"
				+ "\n\tpublic Sample" + "() {\n\n\n" + "\t}" + "\n}");

		getContentPane().add(new JScrollPane(textPane), BorderLayout.CENTER);
		setSize(380, 250);

		setLocationRelativeTo(null);
		setVisible(true);
	}

	// This method is called whenever the caret changes
	public void caretUpdate(CaretEvent e) {
		highlight(textPane);
	}

	// The method is called to highlight a textcomponent
	public void highlight(JTextComponent textComp) {

		removeHighlights(textComp);

		try {
			Highlighter hilite = textComp.getHighlighter();
			Document doc = textComp.getDocument();
			String text = doc.getText(0, doc.getLength());

			int pos = textComp.getCaretPosition();

			int start = text.lastIndexOf("\n", pos - 1);
			start = start < 0 ? 0 : (start + 1);

			int end = text.indexOf("\n", pos);
			end = end < 0 ? text.length() : end;

			hilite.addHighlight(start, end, myHighlightPainter);

		} catch (BadLocationException e) {
		}
	}

	// Removes only our private highlights
	public void removeHighlights(JTextComponent textComp) {
		Highlighter hilite = textComp.getHighlighter();
		Highlighter.Highlight[] hilites = hilite.getHighlights();

		for (int i = 0; i < hilites.length; i++) {
			if (hilites.getPainter() instanceof MyHighlightPainter) {

				hilite.removeHighlight(hilites[i]);

			}

		}

	}



	// A private subclass of the default highlight painter

	class MyHighlightPainter extends DefaultHighlighter.DefaultHighlightPainter {

		public MyHighlightPainter(Color color) {

			super(color);

		}

	}



	public static void main(String[] args) {

		TextHighlighter jf = new TextHighlighter();

		jf.setDefaultCloseOperation(EXIT_ON_CLOSE);

	}

}





Hoping to hear from you people . . .

Thanks : The_Developer