ensemble.samples.graphics.DigitalClock Maven / Gradle / Ivy
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package ensemble.samples.graphics;
import ensemble.Sample;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Parent;
import javafx.scene.effect.Effect;
import javafx.scene.effect.Glow;
import javafx.scene.effect.InnerShadow;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Polygon;
import javafx.scene.transform.Scale;
import javafx.scene.transform.Shear;
import javafx.util.Duration;
import java.util.Calendar;
/**
* A digital clock application that demonstrates JavaFX animation, images, and
* effects.
*
* @see javafx.scene.effect.Glow
* @see javafx.scene.shape.Polygon
* @see javafx.scene.transform.Shear
* @resource DigitalClock-background.png
*/
public class DigitalClock extends Sample {
private Clock clock;
public DigitalClock() {
super(480, 412);
// add background image
ImageView background = new ImageView(new Image(getClass().getResourceAsStream("DigitalClock-background.png")));
// add digital clock
clock = new Clock(Color.ORANGERED, Color.rgb(50,50,50));
clock.setLayoutX(45);
clock.setLayoutY(186);
clock.getTransforms().add(new Scale(0.83f, 0.83f, 0, 0));
// add background and clock to sample
getChildren().addAll(background, clock);
}
@Override public void play() {
clock.play();
}
@Override public void stop() {
clock.stop();
}
/**
* Clock made of 6 of the Digit classes for hours, minutes and seconds.
*/
public static class Clock extends Parent {
private Calendar calendar = Calendar.getInstance();
private Digit[] digits;
private Timeline delayTimeline, secondTimeline;
public Clock(Color onColor, Color offColor) {
// create effect for on LEDs
Glow onEffect = new Glow(1.7f);
onEffect.setInput(new InnerShadow());
// create effect for on dot LEDs
Glow onDotEffect = new Glow(1.7f);
onDotEffect.setInput(new InnerShadow(5,Color.BLACK));
// create effect for off LEDs
InnerShadow offEffect = new InnerShadow();
// create digits
digits = new Digit[7];
for (int i = 0; i < 6; i++) {
Digit digit = new Digit(onColor, offColor, onEffect, offEffect);
digit.setLayoutX(i * 80 + ((i + 1) % 2) * 20);
digits[i] = digit;
getChildren().add(digit);
}
// create dots
Group dots = new Group(
new Circle(80 + 54 + 20, 44, 6, onColor),
new Circle(80 + 54 + 17, 64, 6, onColor),
new Circle((80 * 3) + 54 + 20, 44, 6, onColor),
new Circle((80 * 3) + 54 + 17, 64, 6, onColor));
dots.setEffect(onDotEffect);
getChildren().add(dots);
// update digits to current time and start timer to update every second
refreshClocks();
}
private void refreshClocks() {
calendar.setTimeInMillis(System.currentTimeMillis());
int hours = calendar.get(Calendar.HOUR_OF_DAY);
int minutes = calendar.get(Calendar.MINUTE);
int seconds = calendar.get(Calendar.SECOND);
digits[0].showNumber(hours / 10);
digits[1].showNumber(hours % 10);
digits[2].showNumber(minutes / 10);
digits[3].showNumber(minutes % 10);
digits[4].showNumber(seconds / 10);
digits[5].showNumber(seconds % 10);
}
public void play() {
// wait till start of next second then start a timeline to call refreshClocks() every second
delayTimeline = new Timeline();
delayTimeline.getKeyFrames().add(
new KeyFrame(new Duration(1000 - (System.currentTimeMillis() % 1000)), new EventHandler() {
@Override public void handle(ActionEvent event) {
if (secondTimeline != null) {
secondTimeline.stop();
}
secondTimeline = new Timeline();
secondTimeline.setCycleCount(Timeline.INDEFINITE);
secondTimeline.getKeyFrames().add(
new KeyFrame(Duration.seconds(1), new EventHandler() {
@Override public void handle(ActionEvent event) {
refreshClocks();
}
}));
secondTimeline.play();
}
})
);
delayTimeline.play();
}
public void stop(){
delayTimeline.stop();
if (secondTimeline != null) {
secondTimeline.stop();
}
}
}
/**
* Simple 7 segment LED style digit. It supports the numbers 0 through 9.
*/
public static class Digit extends Parent {
private static final boolean[][] DIGIT_COMBINATIONS = new boolean[][]{
new boolean[]{true, false, true, true, true, true, true},
new boolean[]{false, false, false, false, true, false, true},
new boolean[]{true, true, true, false, true, true, false},
new boolean[]{true, true, true, false, true, false, true},
new boolean[]{false, true, false, true, true, false, true},
new boolean[]{true, true, true, true, false, false, true},
new boolean[]{true, true, true, true, false, true, true},
new boolean[]{true, false, false, false, true, false, true},
new boolean[]{true, true, true, true, true, true, true},
new boolean[]{true, true, true, true, true, false, true}};
private final Polygon[] polygons = new Polygon[]{
new Polygon(2, 0, 52, 0, 42, 10, 12, 10),
new Polygon(12, 49, 42, 49, 52, 54, 42, 59, 12f, 59f, 2f, 54f),
new Polygon(12, 98, 42, 98, 52, 108, 2, 108),
new Polygon(0, 2, 10, 12, 10, 47, 0, 52),
new Polygon(44, 12, 54, 2, 54, 52, 44, 47),
new Polygon(0, 56, 10, 61, 10, 96, 0, 106),
new Polygon(44, 61, 54, 56, 54, 106, 44, 96)};
private final Color onColor;
private final Color offColor;
private final Effect onEffect;
private final Effect offEffect;
public Digit(Color onColor, Color offColor, Effect onEffect, Effect offEffect) {
this.onColor = onColor;
this.offColor = offColor;
this.onEffect = onEffect;
this.offEffect = offEffect;
getChildren().addAll(polygons);
getTransforms().add(new Shear(-0.1,0));
showNumber(0);
}
public void showNumber(Integer num) {
if (num < 0 || num > 9) num = 0; // default to 0 for non-valid numbers
for (int i = 0; i < 7; i++) {
polygons[i].setFill(DIGIT_COMBINATIONS[num][i] ? onColor : offColor);
polygons[i].setEffect(DIGIT_COMBINATIONS[num][i] ? onEffect : offEffect);
}
}
}
}
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