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/*
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* Copyright © 2014 TAKAHASHI,Toru
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*/
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package analogclock;
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import java.time.LocalTime;
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import java.util.List;
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import static java.util.stream.Collectors.toList;
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import java.util.stream.IntStream;
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import javafx.animation.Animation;
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import javafx.animation.Interpolator;
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import javafx.animation.RotateTransition;
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import javafx.application.Application;
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import javafx.scene.Group;
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import javafx.scene.Node;
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import javafx.scene.Scene;
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import javafx.scene.layout.Pane;
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import javafx.scene.layout.StackPane;
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import javafx.scene.paint.Color;
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import javafx.scene.paint.CycleMethod;
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import javafx.scene.paint.RadialGradient;
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import javafx.scene.paint.Stop;
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import javafx.scene.shape.Circle;
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import javafx.scene.shape.Line;
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import javafx.scene.shape.LineTo;
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import javafx.scene.shape.MoveTo;
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import javafx.scene.shape.Path;
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import javafx.scene.transform.Rotate;
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import javafx.stage.Stage;
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import javafx.util.Duration;
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/**
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* アナログ時計（長針、短針、秒針）を表示するプログラム。
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*
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* @author TAKAHASHI,Toru
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*/
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public class AnalogClockDrawing extends Application {
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private static final double UNIT_SIZE = 100d;
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@Override
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public void start(Stage primaryStage) {
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StackPane root = new StackPane();
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Node clockDial = createClockDial();
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Node hourHand = createHourHand();
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Node minuteHand = createMinuteHand();
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Node secondHand = createSecondHand();
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Node centerPoint = createCenter();
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root.getChildren().addAll(
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clockDial, hourHand, minuteHand, secondHand, centerPoint
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);
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LocalTime time = LocalTime.now();
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RotateTransition secondsTransition = createRotateTransition(Duration.seconds(60), secondHand, getSecondsAngle(time));
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secondsTransition.play();
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RotateTransition minuteTransition = createRotateTransition(Duration.minutes(60), minuteHand, getMinuteAgnel(time));
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minuteTransition.play();
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RotateTransition hourTransition = createRotateTransition(Duration.hours(12), hourHand, getHourAngle(time));
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hourTransition.play();
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Scene scene = new Scene(root);
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primaryStage.setTitle("Clock");
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primaryStage.setScene(scene);
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primaryStage.show();
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}
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RotateTransition createRotateTransition(Duration duration, Node node, int startAngle) {
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RotateTransition rt = new RotateTransition(duration, node);
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rt.setFromAngle(startAngle);
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rt.setByAngle(360);
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rt.setCycleCount(Animation.INDEFINITE);
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rt.setInterpolator(Interpolator.LINEAR);
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return rt;
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}
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Node createClockDial() {
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Pane pane = new Pane();
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pane.getChildren().addAll(createCircle(), createTickMarks());
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return pane;
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}
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// 時計の文字盤（背景）を作成する
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Node createCircle() {
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RadialGradient gradient = new RadialGradient(
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0, 0, 0.5, 0.5, 0.5, true, CycleMethod.NO_CYCLE,
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new Stop(0.8, Color.WHITE), new Stop(0.9, Color.BLACK), new Stop(0.95, Color.WHITE), new Stop(1.0, Color.BLACK)
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);
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Circle circle = new Circle(UNIT_SIZE, UNIT_SIZE, UNIT_SIZE, gradient);
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return circle;
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}
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// 時計の文字盤（分刻み）を作成する
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Node createTickMarks() {
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Group tickMarkGroup = new Group();
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List<Node> tickMarks = IntStream.range(0, 60)
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.mapToObj(this::createTickMark)
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.collect(toList());
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tickMarkGroup.getChildren().addAll(tickMarks);
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return tickMarkGroup;
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}
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// 時計の文字盤の分刻みの1つを作成する
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Node createTickMark(int n) {
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Line line;
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if (n % 5 == 0) {
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line = new Line(UNIT_SIZE, UNIT_SIZE * 0.12, UNIT_SIZE, UNIT_SIZE * 0.2);
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} else {
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line = new Line(UNIT_SIZE, UNIT_SIZE * 0.15, UNIT_SIZE, UNIT_SIZE * 0.16);
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}
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line.getTransforms().add(new Rotate(360 / 60 * n, UNIT_SIZE, UNIT_SIZE));
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line.setStrokeWidth(2);
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return line;
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}
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// 時計の中心点を作成する
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Node createCenter() {
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return new Circle(UNIT_SIZE, UNIT_SIZE, UNIT_SIZE * 0.05, Color.BLACK);
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}
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// 時計の短針を作成する
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Node createHourHand() {
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Pane pane = new Pane();
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pane.setPrefSize(UNIT_SIZE * 2, UNIT_SIZE * 2);
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Node hourHand = createHourOrMinuteHand(UNIT_SIZE * 0.4, Color.BLACK);
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pane.getChildren().add(hourHand);
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return pane;
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}
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// 時計の長針を作成する
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Node createMinuteHand() {
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Pane pane = new Pane();
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pane.setPrefSize(UNIT_SIZE * 2, UNIT_SIZE * 2);
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Node minuteHand = createHourOrMinuteHand(UNIT_SIZE * 0.2, Color.BLACK);
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pane.getChildren().add(minuteHand);
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return pane;
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}
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// 時計の秒針を作成する
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Node createSecondHand() {
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Pane pane = new Pane();
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pane.setPrefSize(UNIT_SIZE * 2, UNIT_SIZE * 2);
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Line line = new Line(UNIT_SIZE, UNIT_SIZE * 1.1, UNIT_SIZE, UNIT_SIZE * 0.2);
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pane.getChildren().add(line);
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return pane;
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}
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// 時計の針を作成する
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Node createHourOrMinuteHand(double stretchRelativeToRim, Color color) {
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Path path = new Path(
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new MoveTo(UNIT_SIZE, UNIT_SIZE),
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new LineTo(UNIT_SIZE * 0.9, UNIT_SIZE * 0.9),
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new LineTo(UNIT_SIZE, stretchRelativeToRim),
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new LineTo(UNIT_SIZE * 1.1, UNIT_SIZE * 0.9),
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new LineTo(UNIT_SIZE, UNIT_SIZE)
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);
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path.setFill(color);
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path.setStroke(Color.TRANSPARENT);
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return path;
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}
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/**
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* @param args the command line arguments
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*/
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public static void main(String[] args) {
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launch(args);
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}
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private int getSecondsAngle(LocalTime time) {
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return time.getSecond() * 360 / 60;
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}
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private int getMinuteAgnel(LocalTime time) {
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return (int) ((time.getMinute() + time.getSecond() / 60d) * 360 / 60);
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}
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private int getHourAngle(LocalTime time) {
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return (int) ((time.getHour() % 12 + time.getMinute() / 60d + time.getSecond() / 3600d) * 360 / 12);
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}
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}
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