Jfxtest.java

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import javafx.animation.AnimationTimer;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.image.WritableImage;
import javafx.scene.SnapshotParameters;

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

    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("Title");
        Group root = new Group();
        Scene scene = new Scene(root);

        Canvas canvas = new Canvas(100, 100); //create some image
        GraphicsContext gc = canvas.getGraphicsContext2D();
        gc.setFill(Color.GREEN);
        gc.setStroke(Color.BLUE);
        gc.setLineWidth(5);
        gc.strokeLine(0, 0, 100, 100);
        Image img = canvas.snapshot(new SnapshotParameters(), new WritableImage(100,100));

        ImageView imv = new ImageView();
        imv.setImage(img);
        root.getChildren().add(imv);
        primaryStage.setScene(scene);
        primaryStage.show();
        primaryStage.setFullScreen(true);
        AnimationTimer at = new AnimationTimer() {
            int deltax = 1;
            int deltay = 1;
            @Override
            public void handle(long now) {
                if (imv.getTranslateX() > primaryStage.getWidth() - img.getWidth() || imv.getTranslateX() < 0) {
                    deltax = -deltax;
                }
                if (imv.getTranslateY() > primaryStage.getHeight() - img.getHeight() || imv.getTranslateY() < 0) {
                    deltay = -deltay;
                }
                imv.setTranslateX(imv.getTranslateX() + deltax);
                imv.setTranslateY(imv.getTranslateY() + deltay);
                imv.setRotate(imv.getRotate() + 1);
            }
        };
        at.start();
    }
}