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package ensemble.samples.animation.interpolator;
import javafx.animation.Interpolator;
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.effect.Lighting;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.stage.Stage;
import javafx.util.Duration;
/**
* A sample that shows various types of interpolation between key frames in a
* timeline. There are five circles, each animated with a different
* interpolation method. The Linear interpolator is the default. Use the
* controls to reduce opacity to zero for some circles to compare with others,
* or change circle color to distinguish between individual interpolators.
*
* @sampleName Interpolator
* @preview preview.png
* @playground - (name="LINEAR")
* @playground circle1.opacity (min=0, max=1)
* @playground circle1.fill
* @playground - (name="EASE_BOTH")
* @playground circle2.opacity (min=0, max=1)
* @playground circle2.fill
* @playground - (name="EASE_IN")
* @playground circle3.opacity (min=0, max=1)
* @playground circle3.fill
* @playground - (name="EASE_OUT")
* @playground circle4.opacity (min=0, max=1)
* @playground circle4.fill
* @playground - (name="SPLINE")
* @playground circle5.opacity (min=0, max=1)
* @playground circle5.fill
* @see javafx.animation.Interpolator
* @see javafx.animation.KeyFrame
* @see javafx.animation.KeyValue
* @see javafx.animation.Timeline
* @see javafx.util.Duration
* @embedded
*/
public class InterpolatorApp extends Application {
private final Timeline timeline = new Timeline();
private Circle circle1;
private Circle circle2;
private Circle circle3;
private Circle circle4;
private Circle circle5;
public Parent createContent() {
Pane root = new Pane();
root.setPrefSize(245, 230);
root.setMinSize(Pane.USE_PREF_SIZE, Pane.USE_PREF_SIZE);
root.setMaxSize(Pane.USE_PREF_SIZE, Pane.USE_PREF_SIZE);
//create circles by method createMovingCircle listed below
//default interpolator
circle1 = createMovingCircle(Interpolator.LINEAR, 0, Color.RED);
//circle slows down when reached both ends of trajectory
circle2 = createMovingCircle(Interpolator.EASE_BOTH, 35, Color.VIOLET);
//circle slows down in the beginning of animation
circle3 = createMovingCircle(Interpolator.EASE_IN, 70, Color.BLUE);
//circle slows down in the end of animation
circle4 = createMovingCircle(Interpolator.EASE_OUT, 105, Color.YELLOW);
//one can define own behaviour of interpolator by spline method
circle5 = createMovingCircle(Interpolator.SPLINE(0.5, 0.1, 0.1, 0.5), 140, Color.GREEN);
// set initial opacities
circle1.setOpacity(0.7);
circle2.setOpacity(0.45);
circle3.setOpacity(0.20);
circle4.setOpacity(0.35);
circle5.setOpacity(0.7);
root.getChildren().addAll(
circle1,
circle2,
circle3,
circle4,
circle5);
return root;
}
private Circle createMovingCircle(Interpolator interpolator, double centerY, Color color) {
//create a transparent circle
Circle circle = new Circle(45, 45, 40, color);
circle.setOpacity(0);
circle.setCenterY(centerY + 40);
//add effect
circle.setEffect(new Lighting());
//create a timeline for moving the circle
timeline.setCycleCount(Timeline.INDEFINITE);
timeline.setAutoReverse(true);
//create a keyValue for horizontal translation of circle to the position 155px with given interpolator
KeyValue keyValue = new KeyValue(circle.translateXProperty(), 155, interpolator);
//create a keyFrame with duration 4s
KeyFrame keyFrame = new KeyFrame(Duration.seconds(4), keyValue);
//add the keyframe to the timeline
timeline.getKeyFrames().add(keyFrame);
return circle;
}
public void play() {
timeline.play();
}
@Override
public void stop() {
timeline.stop();
}
@Override
public void start(Stage primaryStage) throws Exception {
primaryStage.setResizable(false);
primaryStage.setScene(new Scene(createContent()));
primaryStage.show();
play();
}
/**
* Java main for when running without JavaFX launcher
* @param args command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}
