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NimROD Look and Feel is an extension of the Metal Look and Feel, so it should be a portable look and feel. This POM was contributed by Rob Manning and can be used to build this laf from the original source code if the source code is structured according to Maven conventions.

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/*
 *                 (C) Copyright 2005 Nilo J. Gonzalez
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser Gereral Public Licence as published by the Free
 * Software Foundation; either version 2 of the Licence, or (at your opinion) any
 * later version.
 * 
 * This library is distributed in the hope that it will be usefull, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of merchantability or fitness for a
 * particular purpose. See the GNU Lesser General Public Licence for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public Licence along
 * with this library; if not, write to the Free Software Foundation, Inc., 59
 * Temple Place, Suite 330, Boston, Ma 02111-1307 USA.
 *
 * http://www.gnu.org/licenses/lgpl.html (English)
 * http://gugs.sindominio.net/gnu-gpl/lgpl-es.html (Espa?ol)
 *
 *
 * Original author: Nilo J. Gonzalez 
 */


/**
 * Esta clase implementa los campos de password.
 * Esta clase cambia los asteriscos habituales por unos cuadrados con bordes redondeados 
 * @see NimRODPasswordFieldUI
 * @author Nilo J. Gonzalez
 */ 
 
package com.nilo.plaf.nimrod;

import java.awt.*;

import javax.swing.*;
import javax.swing.text.*;


public class NimRODPasswordView extends PasswordView {
  protected static int ancho = 9;
  protected static int hueco = 3;
  
  public NimRODPasswordView( Element elem) {
    super( elem);
  }
  
  protected int drawEchoCharacter( Graphics g, int x, int y, char c) {
    int w = getFontMetrics().charWidth( c);
    w = ( w < ancho ? ancho : w);
    int h = (getContainer().getHeight() - ancho) / 2;
    
    Graphics2D g2D = (Graphics2D)g;
    g2D.setRenderingHint( RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    
    g2D.fillOval( x, h+1, w, w);
    
    g2D.setRenderingHint( RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_DEFAULT);
    
    return x + w + hueco;
  }
  
  public Shape modelToView( int pos, Shape a, Position.Bias b) throws BadLocationException {
  	Container c = getContainer();
  	if ( c instanceof JPasswordField ) {
  	  JPasswordField f = (JPasswordField)c;
  	  if ( !f.echoCharIsSet() ) {
  		  return super.modelToView( pos, a, b);
  	  }
  	    
      char echoChar = f.getEchoChar();
  	  int w = f.getFontMetrics( f.getFont()).charWidth( echoChar);
  	  w = ( w < ancho ? ancho : w) + hueco;
  	  
  	  Rectangle alloc = adjustAllocation( a).getBounds();
  	  int dx = (pos - getStartOffset()) * w;
  	  alloc.x += dx - 2;
      if ( alloc.x <= 5 ) {
        alloc.x = 6;
      }
  	  alloc.width = 1;
  	  
  	  return alloc;
  	}
  	
  	return null;
  }
  
  public int viewToModel( float fx, float fy, Shape a, Position.Bias[] bias) {
	  bias[0] = Position.Bias.Forward;
	  int n = 0;
	  Container c = getContainer();
	  if ( c instanceof JPasswordField ) {
	    JPasswordField f = (JPasswordField)c;
	    if ( !f.echoCharIsSet() ) {
		    return super.viewToModel( fx, fy, a, bias);
	    }
	    
	    char echoChar = f.getEchoChar();
	    int w = f.getFontMetrics( f.getFont()).charWidth( echoChar);
  	  w = ( w < ancho ? ancho : w) + hueco;
  	  
	    a = adjustAllocation( a);
	    Rectangle alloc = (a instanceof Rectangle) ? (Rectangle)a : a.getBounds();
	    n = ((int)fx - alloc.x) / w;
	    if (n < 0) {
		    n = 0;
	    }
	    else if ( n > (getStartOffset() + getDocument().getLength()) ) {
		    n = getDocument().getLength() - getStartOffset();
	    }
	  }
	  
    return getStartOffset() + n;
  }
}