Calculate.java

package wf.util;

import java.io.IOException;

import javafx.event.EventHandler;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Modality;
import javafx.stage.Stage;
import javafx.stage.WindowEvent;
import wf.Main;
import wf.view.CalculateController;

public class Calculate {

	private CalculateController calculateController = new CalculateController();

	private AnchorPane calculate_ap = new AnchorPane();
	private FXMLLoader loader = new FXMLLoader();
	private Stage calculate_st = new Stage();

	private static final Calculate INSTANCE = new Calculate();

	public Calculate() {

		try {

			loader.setLocation(Main.class.getResource("view/Calculate.fxml"));

			calculate_ap = ((AnchorPane) loader.load());

			// Show the scene containing the root layout.
			final Scene calculate_sc = new Scene(calculate_ap);
			calculate_sc.getStylesheets().clear();
			calculate_sc.getStylesheets().add(Main.class.getResource("/wf/view/application.css").toExternalForm());


			calculate_st.setScene(calculate_sc);
		 	calculate_st.setResizable(false);
		 	calculate_st.initModality(Modality.APPLICATION_MODAL);
		 	calculate_st.setOnCloseRequest(new EventHandler<WindowEvent>() {

		 		@Override
		 		public void handle(WindowEvent event) {
			        event.consume();
			    }
			});

		 	setStage(calculate_st);

		} catch (IOException e) {

			e.printStackTrace();
		}
	}

	private void setStage(Stage stage) {

		this.calculate_st = stage;
	}

	public Stage getStage() {

		return calculate_st;
	}

	public void showStage() {

		calculateController = loader.<CalculateController>getController();
		calculateController.reset();

		calculate_st.showAndWait();
	}

	public static Calculate getInstance() {

		return INSTANCE;
	}
}