public SwatchPanel() 
{
        initValues();
        initColors();
        setToolTipText(""); // register for events
        setOpaque(true);
        setBackground(Color.white);
        setRequestFocusEnabled(false);
        setInheritsPopupMenu(true);
}

 public Color getColorForLocation(int x,
    int y) 
{
        int column;
        if ((!this.getComponentOrientation().isLeftToRight()) &&
            (this instanceof RecentSwatchPanel)) {
            column = numSwatches.width - x / (swatchSize.width + gap.width) - 1;
        } else {
            column = x / (swatchSize.width + gap.width);
        }
        int row = y / (swatchSize.height + gap.height);
        return getColorForCell(column, row);
}

 public Dimension getPreferredSize() 
{
        int x = numSwatches.width * (swatchSize.width + gap.width) - 1;
        int y = numSwatches.height * (swatchSize.height + gap.height) - 1;
        return new Dimension( x, y );
}

 public String getToolTipText(MouseEvent e) 
{
        Color color = getColorForLocation(e.getX(), e.getY());
        return color.getRed()+", "+ color.getGreen() + ", " + color.getBlue();
}

 protected  void initColors() 
{

}

 protected  void initValues() 
{

}

 public boolean isFocusTraversable() 
{
        return false;
}

 public  void paintComponent(Graphics g) 
{
         g.setColor(getBackground());
         g.fillRect(0,0,getWidth(), getHeight());
         for (int row = 0; row <  numSwatches.height; row++) {
            int y = row * (swatchSize.height + gap.height);
            for (int column = 0; column <  numSwatches.width; column++) {
              g.setColor( getColorForCell(column, row) );
                int x;
                if ((!this.getComponentOrientation().isLeftToRight()) &&
                    (this instanceof RecentSwatchPanel)) {
                    x = (numSwatches.width - column - 1) * (swatchSize.width + gap.width);
                } else {
                    x = column * (swatchSize.width + gap.width);
                }
                g.fillRect( x, y, swatchSize.width, swatchSize.height);
                g.setColor(Color.black);
                g.drawLine( x+swatchSize.width-1, y, x+swatchSize.width-1, y+swatchSize.height-1);
                g.drawLine( x, y+swatchSize.height-1, x+swatchSize.width-1, y+swatchSize.height-1);
            }
         }
}