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  • by x32x01 ||
Metronome using Translate Transition
Metronome using Translate Transition
Java:
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.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.CircleBuilder;
import javafx.stage.Stage;
import javafx.util.Duration;

public class Main extends Application {
  Button startButton;
  Button pauseButton;
  Button resumeButton;
  Button stopButton;
  Circle circle = CircleBuilder.create()
    .centerX(100)
    .centerY(50)
    .radius(4)
    .fill(Color.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();

  public static void main(String[] args) {
    Application.launch(args);
  }

  @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 e) {
                      anim.playFromStart();
                    }
                  })
                  .build(),
                pauseButton = ButtonBuilder.create()
                  .text("Pause")
                  .onAction(new EventHandler<ActionEvent>() {
                    @Override public void handle(ActionEvent e) {
                      anim.pause();
                    }
                  })
                  .build(),
                resumeButton = ButtonBuilder.create()
                  .text("Resume")
                  .onAction(new EventHandler<ActionEvent>() {
                    @Override public void handle(ActionEvent e) {
                      anim.play();
                    }
                  })
                  .build(),
                stopButton = ButtonBuilder.create()
                  .text("Stop")
                  .onAction(new EventHandler<ActionEvent>() {
                    @Override public void handle(ActionEvent e) {
                      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 using TranslateTransition");
    stage.show();
  }
}
 

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