Multiple Line Input Dialog Box

johnt · #1 (**permalink**) 05-31-2007, 11:26 PM

I've got a simple dialog box that I'm creating by calling

Code:

JOptionPane.showInputDialog(...)

I get a little edit box where the user can enter a simple string, and this works fine.

I'd like to change this so instead of a 1 line edit box, I get a multiple line edit box (I guess this would be a JTextArea). How can I do this easily?

levent · #2 (**permalink**) 05-31-2007, 11:27 PM

Here's something to play around with. It's a bit rough, but it might be enough to get you started.

Code:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
class Testing extends JFrame
{
  JLabel lbl = new JLabel("Text entered = ");
  public Testing()
  {
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    setSize(600,300);
    setLocation(200,100);
    JPanel main = new JPanel(new BorderLayout());
    main.add(lbl,BorderLayout.CENTER);
    JButton btn = new JButton("Get some text");
    btn.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent e){
        lbl.setText("<html>Text entered = <br>"+
        new MyJOptionPane().showInputDialog("Enter some text").replaceAll("\\n","<br>")+
        "</html>");}});
    main.add(btn,BorderLayout.SOUTH);
    getContentPane().add(main);
  }
  public static void main(String[] args){new Testing().setVisible(true);}
}
class MyJOptionPane extends JOptionPane
{
  public static String showInputDialog(final String message)
  {
    String data = null;
    class GetData extends JDialog implements ActionListener
    {
      JTextArea ta = new JTextArea(5,10);
      JButton btnOK = new JButton("   OK   ");
      JButton btnCancel = new JButton("Cancel");
      String str = null;
      public GetData()
      {
        setModal(true);
        getContentPane().setLayout(new BorderLayout());
        setDefaultCloseOperation(DISPOSE_ON_CLOSE);
        setLocation(400,300);
        getContentPane().add(new JLabel(message),BorderLayout.NORTH);
        getContentPane().add(ta,BorderLayout.CENTER);
        JPanel jp = new JPanel();
        btnOK.addActionListener(this);
        btnCancel.addActionListener(this);
        jp.add(btnOK);
        jp.add(btnCancel);
        getContentPane().add(jp,BorderLayout.SOUTH);
        pack();
        setVisible(true);
      }
      public void actionPerformed(ActionEvent ae)
      {
        if(ae.getSource() == btnOK) str = ta.getText();
        dispose();
      }
      public String getData(){return str;}
    }
    data = new GetData().getData();
    return data;
  }
}

johnt · #3 (**permalink**) 05-31-2007, 11:30 PM

Thanks. It works perfectly