public static Icon getEvenIcon(Icon icon) {
LayeredIcon layeredIcon = new LayeredIcon(2);
layeredIcon.setIcon(EMPTY_ICON, 0);
if (icon != null
&& icon.getIconHeight() <= EMPTY_ICON.getIconHeight()
&& icon.getIconWidth() <= EMPTY_ICON.getIconWidth()) {
layeredIcon.setIcon(
icon,
1,
(-icon.getIconWidth() + EMPTY_ICON.getIconWidth()) / 2,
(EMPTY_ICON.getIconHeight() - icon.getIconHeight()) / 2);
}
return layeredIcon;
}
public static Icon augmentIcon(@Nullable Icon icon, @NotNull Icon standard) {
if (icon == null) {
return standard;
}
if (icon.getIconHeight() < standard.getIconHeight()
|| icon.getIconWidth() < standard.getIconWidth()) {
final LayeredIcon layeredIcon = new LayeredIcon(2);
layeredIcon.setIcon(icon, 0, 0, (standard.getIconHeight() - icon.getIconHeight()) / 2);
layeredIcon.setIcon(standard, 1);
return layeredIcon;
}
return icon;
}