import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
import javafx.scene.control.Button;
import javafx.event.EventHandler;
import javafx.event.ActionEvent;

// NB! maa vaere public
public class SceneSkifte extends Application {

    private Stage teater;

    @Override
    public void start(Stage teater) {
        this.teater = teater;
        Pane kulisser = new Pane();
        Scene scene = new Scene(kulisser);

        Button knapp = new Button("Klikk meg!");
        knapp.setPrefSize(200, 80);
        KnappBehandler behandler = new KnappBehandler();
        knapp.setOnAction(behandler);

        kulisser.getChildren().add(knapp);
        teater.setTitle("Min GUI");
        teater.setScene(scene);
        teater.show();

    }

    class KnappBehandler implements EventHandler<ActionEvent> {
        @Override
        public void handle(ActionEvent e) {
            Pane kulisser = new Pane();
            Scene scene = new Scene(kulisser);

            Text hilsen = new Text("Hallo alle sammen!");
            hilsen.setY(40);
            hilsen.setFont(new Font(40));
            kulisser.getChildren().add(hilsen);

            teater.setScene(scene);
            teater.show();
        }
    }

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

}