Code
UIManager.put(PRE + "minimumTextOffset", 10);
UIManager.put(PRE + "afterCheckIconGap", 0);
UIManager.put(PRE + "checkIconOffset", 0);
Icon checkIcon = getCheckIcon();
int height = checkIcon == null ? 22 : checkIcon.getIconHeight();
UIManager.put(PRE + "checkIcon", new EmptyIcon());
Dimension d = new Dimension(100, height);
JPopupMenu popup = new JPopupMenu();
ButtonGroup bg = new ButtonGroup();
Arrays.asList(
makeMenuItem("0.5 pt", .5f, d),
makeMenuItem("0.75 pt", .75f, d),
makeMenuItem("1 pt", 1f, d),
makeMenuItem("1.5 pt", 1.5f, d),
makeMenuItem("2.25 pt", 2.25f, d),
makeMenuItem("3 pt", 3f, d)
).forEach(m -> {
popup.add(m);
bg.add(m);
});
// ...
private static JMenuItem makeMenuItem(String txt, float width, Dimension d) {
float px = width * Toolkit.getDefaultToolkit().getScreenResolution() / 72f;
return new JRadioButtonMenuItem(txt, new LineIcon(new BasicStroke(px), d)) {
@Override protected void init(String text, Icon icon) {
super.init(text, icon);
setHorizontalTextPosition(LEADING);
setHorizontalAlignment(TRAILING);
}
@Override protected void paintComponent(Graphics g) {
if (isSelected()) {
Graphics2D g2 = (Graphics2D) g.create();
g2.setPaint(new Color(0xAA_64_AA_FF, true));
g2.fillRect(0, 0, getWidth(), getHeight());
g2.dispose();
}
super.paintComponent(g);
}
};
}
References
