Paste inserts 2 copies of clipboard

[David A. Smith]

Hi all,

I have a text field that I want to support the ^C and ^V conventions for copy and paste. The problem is that I get *two* copies of whatever was in the clipboard. The code is so simple that I would think there's not much to go wrong. But clearly I'm wrong... Anyway, the JVM is 1.6.0_18 on a Linux box.

Here's the code:

public class InputField extends JTextField {
   public InputField( int size ) {
      super( size );
      addKeyListener( new KeyHandler() );
   }

   private class KeyHandler implements KeyListener {
      public void keyReleased( KeyEvent keyEvent )  {
         int modifiers = keyEvent.getModifiers();
         boolean ctrl  = ( (modifiers & InputEvent.CTRL_MASK ) == InputEvent.CTRL_MASK  );
         if ( ctrl ) {
            int keyCode = keyEvent.getKeyCode();
            if ( keyCode == KeyEvent.VK_C ) {
               copy();
            }
            if ( keyCode == KeyEvent.VK_V ) {
               paste();
            }
         }
      }

      public void keyPressed( KeyEvent e ) { }
      public void keyTyped( KeyEvent e ) { }
   }
}

Thanks,

Dave.

[Darryl Burke]

The copy,cut,selectAll and paste actions are already supported via key bindings. In reinventing the wheel, you've ended up with a bicycle.

[Rob Camick]

Darryl Burke wrote:In reinventing the wheel, you've ended up with a bicycle.

I like that

[David A. Smith]

Okay, thanks...? I'll have to try on different versions/platforms. I'm getting inconsistent behaviors and reports from some users that it doesn't work. (Perhaps an older JDK behaves differently...) Still, thanks for the (humorous!) reply.