Lab21

import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import javafx.util.Duration;
// Lab 21
public class main extends Application {
    private int index = 0;
    private Image images[];
    private ImageView imgView;
    @Override
    public void start(Stage primaryStage) {
        VBox root = new VBox();
        root.setSpacing(10);
        root.setPadding(new Insets(20));
        root.setAlignment(Pos.CENTER);

        images = new Image[]{new Image("https://pngimg.com/uploads/flags/flags_PNG14655.png"),
            new Image("https://wiki2.railml.org/images/5/50/German_flag.png"),
            new Image("https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Flag_of_Saudi_Arabia.svg/800px-Flag_of_Saudi_Arabia.svg.png")};

        imgView = new ImageView(images[index]);
        imgView.setFitHeight(400);
        imgView.setFitWidth(600);

        Timeline animation = new Timeline(new KeyFrame(Duration.millis(1000), eventHandler));
        animation.setCycleCount(Timeline.INDEFINITE);

        Button PlayPause = new Button("Play");
        root.getChildren().addAll(imgView, PlayPause);


        Scene scene = new Scene(root);
        primaryStage.setScene(scene);
        primaryStage.setTitle("Image Animator");
        primaryStage.show();

        PlayPause.setOnMouseClicked(e -> {

        	if (PlayPause.getText().equalsIgnoreCase("Play")) {
        		animation.play();
        		PlayPause.setText("Pause");
        	}
        	else {
        		animation.pause();;
        		PlayPause.setText("Play");
        	}


        });
    }


    EventHandler<ActionEvent> eventHandler = e -> {
    	if(index == images.length - 1)
    		index = 0;
    	else
    		index++;

        imgView.setImage(images[index]);

    };


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