Code
class DigitalNumber {
private final double isosceles;
private final double dx;
private final double dy;
private final double width;
private final double height;
private final Rectangle rect = new Rectangle();
public static final Color OFF = new Color(0xCC_CC_CC);
public static final Color ON = Color.DARK_GRAY;
public static final Color BGC = Color.LIGHT_GRAY;
private final List<Set<Seg>> numbers = Arrays.asList(
EnumSet.of(Seg.A, Seg.B, Seg.C, Seg.D, Seg.E, Seg.F),
EnumSet.of(Seg.B, Seg.C),
EnumSet.of(Seg.A, Seg.B, Seg.D, Seg.E, Seg.G),
EnumSet.of(Seg.A, Seg.B, Seg.C, Seg.D, Seg.G),
EnumSet.of(Seg.B, Seg.C, Seg.F, Seg.G),
EnumSet.of(Seg.A, Seg.C, Seg.D, Seg.F, Seg.G),
EnumSet.of(Seg.A, Seg.C, Seg.D, Seg.E, Seg.F, Seg.G),
EnumSet.of(Seg.A, Seg.B, Seg.C),
EnumSet.of(Seg.A, Seg.B, Seg.C, Seg.D, Seg.E, Seg.F, Seg.G),
EnumSet.of(Seg.A, Seg.B, Seg.C, Seg.D, Seg.F, Seg.G));
private Set<Seg> led = EnumSet.noneOf(Seg.class);
protected DigitalNumber(double dx, double dy, double isosceles) {
this.isosceles = isosceles;
this.dx = dx;
this.dy = dy;
this.width = 2d * isosceles;
this.height = width + isosceles;
rect.setLocation((int) dx, (int) dy);
rect.setSize((int) (width + 3 * isosceles), (int) (height * 2));
}
public Rectangle getBounds() {
return rect;
}
public void setNumber(int num) {
led = numbers.get(num);
}
public void turnOffNumber() {
led.clear();
}
public void drawNumber(Graphics2D g2) {
EnumSet.allOf(Seg.class).forEach(s -> {
g2.setColor(led.contains(s) ? ON : OFF);
Shape seg = s.getShape(dx, dy, width, height, isosceles);
g2.fill(seg);
g2.setColor(BGC);
g2.draw(seg);
});
}
}
enum Seg { A, B, C, D, E, F, G }
References
