🚀 go-pugleaf

The indicated problem of the JTextField component is that it descends
from JTextComponent wich by default handles the <Enter> key. In the
documentation of JTextField is described how one can make a JTextField
not to behave like an AWT TextField, but rather to activate the default
button on <Enter>:

static
  {
  JTextField f = new JTextField();
  KeyStroke enter = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0);
  Keymap map = f.getKeymap();
  map.removeKeyStrokeBinding(enter);
  }

Notice that this is static code and result in the fact that every
JTextField, instantiated from then on, will no longer react to the
<Enter> key, but rather pass it on to its enclosing container, and so
on. If this one of this enclosing containers is a JFrame with a default
button, this frame will map the <Enter> to the activation of this
button.

So in the same way, one can easely add an action listener to do a next
focus on <Enter> for all JTextFields.

Hope this helped.

Bye,

Wim Van Leuven.





In article <7otutj$m95$1@nnrp1.deja.com>,
  Christophe Caenevet <christophe_caenevet@bigfoot.com> wrote:
> I've got a method to do it for all the components you want :
>
> I make the folllowing class :
>
> public class EnterKeyAdapter extends KeyAdapter {
>   Window  frame ;
>
>   public EnterKeyAdapter  ( Window _frame ){
>     frame = _frame;
>   }
>
>   public void keyPressed(KeyEvent e) {
>     if (e.getKeyCode()==KeyEvent.VK_ENTER){
>       FocusManager fm = FocusManager.getCurrentManager();
>       if (fm instanceof DefaultFocusManager)
>         fm.focusNextComponent(frame.getFocusOwner());
>     }
>   }
> }
>
> to put this adapter I do the following code during the windowOpened
> event :
> (the pane to start this function is the result of GetContentPane())
>
>   private void addEnterKeyPressedEventListener( Container pane){
>     Component currentComponent  ;
>     int       count             = pane.getComponentCount();
>     for (int index=0; index < count ; index ++ ){
>       currentComponent = pane.getComponent(index);
>       if (   !(currentComponent instanceof JPanel)
>           && !(currentComponent instanceof JButton)
>           && !(currentComponent instanceof JLabel)
>          )
>         currentComponent.addKeyListener(new EnterKeyAdapter(this));
>       if ( currentComponent instanceof JPanel)
>         addEnterKeyPressedEventListener((Container)currentComponent);
>     }
>   }
>
> --
> ===============================================
> Professionnal : christophe_caenevet@bigfoot.com
> Personnal     : caenevet_xelot@bigfoot.com
> ===============================================
>
> Sent via Deja.com http://www.deja.com/
> Share what you know. Learn what you don't.
>


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