MainController.java

package wf.view;

import javafx.application.Platform;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.Separator;
import javafx.scene.control.TextArea;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.HBox;
import wf.util.About;
import wf.util.Calculate;
import wf.util.DataHistoHandler;
import wf.util.File;
import wf.util.Graphs;
import wf.util.Monitor;
import wf.util.Process;
import wf.util.Table;

public class MainController {

    @FXML private AnchorPane main_ap;
    @FXML private AnchorPane anchorPaneTop_ap;
    @FXML private AnchorPane anchorPaneBot_ap;
    @FXML private Button monitor_bt;
    @FXML private Button process_bt;
    @FXML private Button services_bt;
    @FXML private Button calculate_bt;
    @FXML private Button table_bt;
    @FXML private Button graphs_bt;
    @FXML private Button about_bt;
    @FXML private Button exit_bt;
    @FXML private HBox main_hb;
    @FXML private Label title_lb;
    @FXML private Label info_lb;
    @FXML private Separator hSeparatorNorth;
    @FXML private Separator hSeparatorSouth;
    @FXML private Separator hSeparator;
    @FXML private TextArea info_ta;

    private final About about = About.getInstance();
    private final Calculate calculate = Calculate.getInstance();
    private final File file = File.getInstance();
    private final Monitor monitor = Monitor.getInstance();
    private final Process process = Process.getInstance();
    private final Table table = Table.getInstance();
    private final Graphs graphs = Graphs.getInstance();

    private static DataHistoHandler dataHistoHandler = DataHistoHandler.getInstance();

    @FXML
    public void initialize() {

    	monitor_bt.disableProperty().bind((dataHistoHandler.getDataLoaded().isEqualTo(0))
    			.or(dataHistoHandler.getDataProcessed().isEqualTo(0)));
    	calculate_bt.disableProperty().bind((dataHistoHandler.getDataLoaded().isEqualTo(0))
    			.or(dataHistoHandler.getDataProcessed().isEqualTo(0)));
    	process_bt.disableProperty().bind(dataHistoHandler.getDataLoaded().isEqualTo(0));
    	table_bt.disableProperty().bind((dataHistoHandler.getDataLoaded().isEqualTo(0))
		.or(dataHistoHandler.getDataProcessed().isEqualTo(0))
		.or(dataHistoHandler.getDataCalculated().isEqualTo(0)));
    	graphs_bt.disableProperty().bind((dataHistoHandler.getDataLoaded().isEqualTo(0))
		.or(dataHistoHandler.getDataProcessed().isEqualTo(0))
		.or(dataHistoHandler.getDataCalculated().isEqualTo(0)));

        //display_bt.disableProperty().bind((Bindings.isEmpty(data_handler.getData())));

        info_ta.setEditable(false);
        title_lb.setText("Waveform Analyzer V. 1.0");

        initStyle();

        monitor_bt.setText("Monitor");
        process_bt.setText("Process");
        services_bt.setText("File");
        calculate_bt.setText("Calculate");
        table_bt.setText("Table");
        graphs_bt.setText("Graphs");
        about_bt.setText("About");
        exit_bt.setText("Exit");

        //updateTextArea(dt.getDateAndTime() + " - Welcome to Device Configurator 1.0!");
    }

    @FXML
    private void handleMonitor_bt() {

        monitor.showStage();
    }

    @FXML
    private void handleProcess_bt() {

    	process.showStage();
    }

    @FXML
    private void handleCalculate_bt() {

    	calculate.showStage();
    }

    @FXML
    private void handleTable_bt() {

    	table.showStage();
    }

    @FXML
    private void handleGraphs_bt() {

    	graphs.showStage();
    }

    @FXML
    private void handleServices_bt() {

    	file.showStage();
        //fh.setNumberDevices(data_handler.getData().size());
        //fh.showDialog();
    }

    @FXML
    private void handleAbout_bt() {

        about.showStage();
    }


    @FXML
    private void handleExit_bt() {

    	 exitApplication();
    }

    private void initStyle() {

       // main_ap.setStyle(" -fx-background-color: #ebeced;");
        //main_hb.setStyle(" -fx-background-color: #b5bcc6;");

        main_hb.setStyle(" -fx-background-color: FloralWhite;");

        monitor_bt.setId("button_bevel-grey");
        process_bt.setId("button_bevel-grey");
        services_bt.setId("button_bevel-grey");
        calculate_bt.setId("button_bevel-grey");
        table_bt.setId("button_bevel-grey");
        graphs_bt.setId("button_bevel-grey");
        about_bt.setId("button_bevel-grey");
        exit_bt.setId("button_bevel-grey");

        title_lb.setId("appTitle");

        info_lb.setId("appTitle");

        anchorPaneTop_ap.setId("topLayoutContainer");
        anchorPaneBot_ap.setId("bottomLayoutContainer");

        hSeparatorNorth.setStyle("-fx-border-style: solid; -fx-border-width: 0.1px;");
        hSeparatorSouth.setStyle("-fx-border-style: solid; -fx-border-width: 0.1px;");

        //hSeparator.setStyle("-fx-border-width: 1px;" + " -fx-background-color: #b5bcc6;");
    }

    public void updateTextArea(String msg) {

        info_ta.appendText(msg);
    }

    private void exitApplication() {

        Platform.exit();
        System.exit(0);
    }
}