JTextField Focus...Please Help!

Question

Hello,
I have an issue which i hope someone may be able to help me with. What i am trying to do i think is simple but i am still not up to speed on getFocus events so i hope somebody will be able to aid me.
I have two text fields and one button on a form. When a text field is selected and the button pressed i expect to see a letter appear in the text field dep(String) depending on which one has the focus. However i have not been able to fully achieve this funcionality.
The code I have so far:
private void button1_actionPerformed(ActionEvent e)
     if (gf.WHEN_FOCUSED == 0){
       //gf.setFocusable(true);
         gf.gotFocus();
         txt2 = txt2 + txt;
          gf.setText(txt2);
       else if(tf.WHEN_FOCUSED == 0){
         //  tf.setFocusable(true);
             tf.gotFocus();
             txt2 = txt2 + txt;
             tf.setText(txt2);
  }Could someone help me with this?
Thanks

Answer 1

Write your own TextAction. The TextAction keeps track of the last text component to have focus. Here is a simple example:
JButton selectAll = new JButton( new SelectAll() );
class SelectAll extends TextAction
     public SelectAll()
          super("Select All");
     public void actionPerformed(ActionEvent e)
          JTextComponent component = getFocusedComponent();
          component.selectAll();
}