Simple Dock JavaFX

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package app;

import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Tooltip;
import javafx.scene.effect.Reflection;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.input.MouseEvent;
import javafx.stage.Stage;
import javafx.stage.StageStyle;

/**
 *
 * @author Kalt Wulx
 */
public class Dock extends Application {

    private ImageView fondo;
    private final Image fondoImg = new Image("fondos/fondo.png");
    private static final String OS = System.getProperty("os.name").toLowerCase();

    @Override
    public void start(final Stage stage) {
        stage.initStyle(StageStyle.TRANSPARENT);

        Group raiz = new Group();
        fondo = new ImageView(fondoImg);
        raiz.getChildren().add(fondo);

        calculadora(raiz);
        navegador(raiz);
        terminal(raiz);
        cerrar(raiz);
        draggDock(stage);

        Scene escena = new Scene(raiz, (int) fondoImg.getWidth(), (int) fondoImg.getHeight());
        escena.setFill(null);
        stage.setScene(escena);
        stage.centerOnScreen();
        stage.show();

    }

    private void draggDock(final Stage stage) {
        final Delta delta = new Delta();
        fondo.setOnMousePressed(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                delta.x = stage.getX() - t.getScreenX();
                delta.y = stage.getY() - t.getScreenY();
            }
        });

        fondo.setOnMouseDragged(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                stage.setX(t.getScreenX() + delta.x);
                stage.setY(t.getScreenY() + delta.y);
            }
        });
    }

    private void calculadora(Group raiz) {
        final ImageView icono = new ImageView(new Image("iconos/accessories-calculator.png"));
        icono.setCache(true);
        icono.setSmooth(true);
        Tooltip tip = new Tooltip("Calculadora");
        Tooltip.install(icono, tip);
        icono.setEffect(new Reflection());
        icono.setTranslateX(60 + 80 * 0);
        icono.setTranslateY(3);
        raiz.getChildren().add(icono);

        icono.setOnMouseEntered(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(1.2);
                icono.setScaleY(1.2);
            }
        });

        icono.setOnMouseExited(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(1);
                icono.setScaleY(1);
            }
        });

        icono.setOnMouseClicked(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(0.7);
                icono.setScaleY(0.7);
                Process p = null;
                if(isMac()) {

                } else if(isWindows()) {

                } else if(isUnix()) {
                    try {
                        p = Runtime.getRuntime().exec("gcalctool");
                    } catch (IOException ex) {
                        Logger.getLogger(Dock.class.getName()).log(Level.SEVERE, null, ex);
                    }

                } else if(isSolaris()) {

                }
            }
        });

    }

    private void navegador(Group raiz) {
        final ImageView icono = new ImageView(new Image("iconos/firefox-4.0.png"));
        Tooltip tip = new Tooltip("Navegador");
        icono.setCache(true);
        icono.setSmooth(true);
        Tooltip.install(icono, tip);
        icono.setEffect(new Reflection());
        icono.setTranslateX(60 + 80 * 1);
        icono.setTranslateY(3);
        raiz.getChildren().add(icono);

        icono.setOnMouseEntered(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(1.2);
                icono.setScaleY(1.2);
            }
        });

        icono.setOnMouseExited(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(1);
                icono.setScaleY(1);
            }
        });

        icono.setOnMouseClicked(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(0.7);
                icono.setScaleY(0.7);

                Process p = null;
                if(isMac()) {

                } else if(isWindows()) {

                } else if(isUnix()) {
                    try {
                        p = Runtime.getRuntime().exec("firefox");
                    } catch (IOException ex) {
                        Logger.getLogger(Dock.class.getName()).log(Level.SEVERE, null, ex);
                    }

                } else if(isSolaris()) {

                }
            }
        });
    }

    private void terminal(Group raiz) {
        final ImageView icono = new ImageView(new Image("iconos/bash.png"));
        icono.setCache(true);
        icono.setSmooth(true);
        Tooltip tip = new Tooltip("Terminal");
        Tooltip.install(icono, tip);
        icono.setEffect(new Reflection());
        icono.setTranslateX(60 + 80 * 2);
        icono.setTranslateY(3);
        raiz.getChildren().add(icono);

        icono.setOnMouseEntered(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(1.2);
                icono.setScaleY(1.2);
            }
        });

        icono.setOnMouseExited(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(1);
                icono.setScaleY(1);
            }
        });

        icono.setOnMouseClicked(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(0.7);
                icono.setScaleY(0.7);

                Process p = null;
                if(isMac()) {

                } else if(isWindows()) {

                } else if(isUnix()) {
                    try {
                        p = Runtime.getRuntime().exec("pantheon-terminal");
                    } catch (IOException ex) {
                        Logger.getLogger(Dock.class.getName()).log(Level.SEVERE, null, ex);
                    }

                } else if(isSolaris()) {

                }
            }
        });
    }

    private void cerrar(Group raiz) {
        final ImageView icono = new ImageView(new Image("iconos/boot.png"));
        icono.setCache(true);
        icono.setSmooth(true);

        Tooltip tip = new Tooltip("Cerrar");
        Tooltip.install(icono, tip);

        icono.setEffect(new Reflection());
        icono.setTranslateX(60 + 80 * 3);
        icono.setTranslateY(3);
        raiz.getChildren().add(icono);

        icono.setOnMouseEntered(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(1.2);
                icono.setScaleY(1.2);
            }
        });

        icono.setOnMouseExited(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(1);
                icono.setScaleY(1);
            }
        });

        icono.setOnMouseClicked(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent t) {
                icono.setScaleX(0.7);
                icono.setScaleY(0.7);
                System.exit(0);
            }
        });
    }

    private static boolean isWindows() {
        return (OS.indexOf("win") >= 0);
    }

    private static boolean isMac() {
        return (OS.indexOf("mac") >= 0);
    }

    private static boolean isUnix() {
        return (OS.indexOf("nix") >= 0 || OS.indexOf("nux") >= 0 || OS.indexOf("aix") > 0);
    }

    private static boolean isSolaris() {
        return (OS.indexOf("sunos") >= 0);
    }

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

    class Delta { double x, y; }
}