Code
JPasswordField pf = new JPasswordField(24);
pf.setText("abcdefghijklmn");
pf.setAlignmentX(Component.RIGHT_ALIGNMENT);
AbstractDocument doc = (AbstractDocument) pf.getDocument();
doc.setDocumentFilter(new ASCIIOnlyDocumentFilter());
AbstractButton b = new JToggleButton(new AbstractAction() {
@Override public void actionPerformed(ActionEvent e) {
AbstractButton c = (AbstractButton) e.getSource();
Character ec = c.isSelected() ? 0
: (Character) UIManager.get("PasswordField.echoChar");
pf.setEchoChar(ec);
}
});
b.setFocusable(false);
b.setOpaque(false);
b.setContentAreaFilled(false);
b.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 4));
b.setAlignmentX(Component.RIGHT_ALIGNMENT);
b.setAlignmentY(Component.CENTER_ALIGNMENT);
b.setIcon(new ColorIcon(Color.GREEN));
b.setRolloverIcon(new ColorIcon(Color.BLUE));
b.setSelectedIcon(new ColorIcon(Color.RED));
b.setRolloverSelectedIcon(new ColorIcon(Color.ORANGE));
JPanel panel = new JPanel() {
@Override public boolean isOptimizedDrawingEnabled() {
return false;
}
};
panel.setLayout(new OverlayLayout(panel));
panel.add(b);
panel.add(pf);
References
