JTextpane question

Question

HI everybody,
In my project i have to set some thing in JTextpane.
What my problem is
User enter the characters in textpane after press the enter button
the contents of the textpane is paste in another textpane and first textpane will be clear .
In this process is going good but after pressing the enter, JTextpane go to the next line.
I dont want to go next line after pressing the enter button. just clear the text in JTextpane and set cursor in the starting point of the JTextpane This is i want.
So can any body help this problem.
awaiting for your reply,

Answer 1

Ashwini.Kumar.Kulshrestha wrote:
you must have implemented the key listener for the textPane to trap the Enter key.
public void keyPressed(KeyEvent e){
if(e.getKeyCode()==VK_ENTER)
// pass the text to the other TextPane
textPane.setCursorPosition(0);
textPane.setText("");
e.consume();
}this should solve the purpose.This is not the recommended way to handle such things. This should be handled with InputMap and ActionMap.
[http://java.sun.com/docs/books/tutorial/uiswing/misc/keybinding.html]
Here's an example:
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.KeyStroke;
import javax.swing.text.BadLocationException;
public class TextPaneActionTest {
    public static void main(String[] args) {
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setLayout(new GridLayout(2,0));
        final JTextPane tpOne = new JTextPane();
        final JTextPane tpTwo = new JTextPane();
        KeyStroke enterStroke = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER,0);
        KeyStroke ctrlEnterStroke = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, KeyEvent.ALT_DOWN_MASK);
        Object enterActionKey = tpOne.getInputMap().get(enterStroke);
        Action enterAction = tpOne.getActionMap().get(enterActionKey);
        tpOne.getInputMap().put(ctrlEnterStroke, enterActionKey);
        Action myEnterAction = new AbstractAction() {
            public void actionPerformed(ActionEvent ae) {
                String text = tpOne.getText();
                tpOne.setText("");
                try {
                    tpTwo.getDocument().insertString(tpTwo.getDocument().getLength(), text + "\n", null);
                } catch (BadLocationException ble) {
                    ble.printStackTrace();
        tpOne.getInputMap().put(enterStroke, myEnterAction);
        f.add(tpOne);
        f.add(new JScrollPane(tpTwo));
        f.setSize(400,300);
        f.setVisible(true);
}