MetronomeTransitionJava.java

package metronome;

import javafx.animation.Animation;
import javafx.animation.Interpolator;
import javafx.animation.Timeline;
import javafx.animation.TranslateTransition;
import javafx.animation.TranslateTransitionBuilder;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.GroupBuilder;
import javafx.scene.Scene;
import javafx.scene.SceneBuilder;
import javafx.scene.control.Button;
import javafx.scene.control.ButtonBuilder;
import javafx.scene.layout.HBoxBuilder;
import javafx.scene.shape.Circle;
import javafx.scene.shape.CircleBuilder;
import javafx.stage.Stage;
import javafx.util.Duration;
import static javafx.scene.paint.Color.*;

public class MetronomeTransitionJava extends Application {

	Button startButton;
	Button pauseButton;
	Button resumeButton;
	Button stopButton;

	Circle circle = CircleBuilder.create()
			.centerX(100)
			.centerY(50)
			.radius(4)
			.fill(BLUE).build();

	TranslateTransition anim = TranslateTransitionBuilder.create()
			.duration(new Duration(1000.0))
			.node(circle)
			.fromX(0)
			.toX(200)
			.interpolator(Interpolator.LINEAR)
			.autoReverse(true)
			.cycleCount(Timeline.INDEFINITE).build();

	@Override
	public void start(Stage stage) {
		Scene scene = SceneBuilder.create()
				.width(400)
				.height(500)
				.root(GroupBuilder.create()
						.children(
								circle,
								HBoxBuilder.create()
										.layoutX(60)
										.layoutY(420)
										.spacing(10)
										.children(
												startButton = ButtonBuilder.create()
														.text("Start")
														.onAction(
																new EventHandler<ActionEvent>() {
																	@Override
																	public void handle(
																			ActionEvent arg0) {
																		anim.playFromStart();
																	}
																}).build(),
												pauseButton = ButtonBuilder.create()
														.text("Pause")
														.onAction(
																new EventHandler<ActionEvent>() {
																	@Override
																	public void handle(
																			ActionEvent arg0) {
																		anim.pause();
																	}
																}).build(),
												resumeButton = ButtonBuilder.create()
														.text("Resume")
														.onAction(
																new EventHandler<ActionEvent>() {
																	@Override
																	public void handle(
																			ActionEvent arg0) {
																		anim.play();
																	}
																}).build(),
												stopButton = ButtonBuilder.create()
														.text("Stop")
														.onAction(
																new EventHandler<ActionEvent>() {
																	@Override
																	public void handle(
																			ActionEvent arg0) {
																		anim.stop();
																	}
																}).build())
										.build()).build()).build();

		startButton.disableProperty().bind(anim.statusProperty().isNotEqualTo(Animation.Status.STOPPED));
		pauseButton.disableProperty().bind(anim.statusProperty().isNotEqualTo(Animation.Status.RUNNING));
		resumeButton.disableProperty().bind(anim.statusProperty().isNotEqualTo(Animation.Status.PAUSED));
		stopButton.disableProperty().bind(anim.statusProperty().isEqualTo(Animation.Status.STOPPED));

		stage.setScene(scene);
		stage.setTitle("Metronome");
		stage.show();
	}
	
	public static void main(String[] args) {
		Application.launch(args);
	}
}