Caret not painted in JTextPane

Question

Hi!
If I insert a JTextField in JTextPane and set the caret at the position of the JTextField, the Caret is not visible. It seems it is behind the JTextField. Can anybody help me what I could do so that the caret is always visible for the user so that he/she can always know the position of the caret.
Thanks!
import javax.swing.*;
import javax.swing.text.*;
import java.awt.*;
public class TextPaneTest2 extends JFrame {
     private void insertStringInTextPane(Font f, String text,
               StyledDocument doc) {
          MutableAttributeSet a = new SimpleAttributeSet();
          StyleConstants.setFontSize(a, f.getSize());
          StyleConstants.setFontFamily(a, f.getFamily());
          try {
               doc.insertString(doc.getLength(), text, a);
          catch (BadLocationException x) {
     private void insertTextFieldInTextPane(Font f, String text,
               JTextPane tp, int pos) {
          JTextField tf = new JTextField(text, text.length()) {
               public Dimension getMaximumSize() {
                    return this.getPreferredSize();
          tf.setFont(f);
          FontMetrics fm = tf.getFontMetrics(f);
          int maxAscent = fm.getMaxAscent();
         int height = (int)tf.getPreferredSize().getHeight();
          int borderHeight = tf.getBorder().getBorderInsets(tf).top;
          int aboveBaseline = maxAscent + borderHeight;
          // if you comment the next line out you can see a part of the caret
          float alignmentY = (float)(aboveBaseline)/((float)(height));
          tf.setAlignmentY(alignmentY);
          tp.setCaretPosition(pos);
          tp.insertComponent(tf);
     public TextPaneTest2() {
          StyledDocument doc = new DefaultStyledDocument();
          JTextPane tp = new JTextPane(doc);
          Font f = new Font("SansSerif", Font.PLAIN, 24);
          this.insertStringInTextPane(f, "* ", doc);
          this.insertTextFieldInTextPane(f, "********", tp, doc.getLength());
          this.insertStringInTextPane(f, " ********", doc);
          tp.setEditable(true);
          tp.setCaretPosition(2);
          this.getContentPane().add(tp);
          this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          this.setLocationByPlatform(true);
          this.setSize(400,400);
          this.setVisible(true);
     public static void main(String[] args) {
          new TextPaneTest2();
}

Answer 1

camickr, thanks for your answer. I polished your solution with LineBorder and setOpaque by using a CompoundBorder:
tf.setBorder( new CompoundBorder(new LineBorder(new Color(0, 0, 0, 0), 2), tf.getBorder()));In this case the original Look&Feel of JTextField is honoured and the Caret is clearly before the JTextField and not on the border. If it is painted on the border the user might have some problems to recognize if the caret is before textField or in textfield.
Thank you very much!
Message was edited by:
the12hunters