JavaFX/controller/HeaderMenu.java

package controller;

import java.util.ArrayList;

import Interfaces.EventObserver;
import javafx.event.EventHandler;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.FlowPane;

public class HeaderMenu{

	/* (1) Attributes
	---------------------------------------------------------*/
	private ArrayList<ImageView> items;
	private FlowPane             parent;
	private EventObserver        observer;


	/* Constructor */

	/* (2) Constructor
	*
	* @p_parent<FlowPane>					gParent element
	* @observer<EventObserver>				Main observer (to send event to)
	*
	---------------------------------------------------------*/
	public HeaderMenu(FlowPane p_parent, EventObserver observer){

		this.parent   = p_parent;
		this.items    = new ArrayList<ImageView>();
		this.observer = observer;

	}


	/* (3) Add a new menu item (graphically too)
	*
	* @p_name<String>					The new menu item's name
	* @p_image_uri<String>				The new menu item's image link
	*
	---------------------------------------------------------*/
	public void addItem(String p_name, String p_image_uri) {

		/* (1) Create ImageView */
		ImageView menuItem = new ImageView();

		/* (2) Set useful attributes */
		menuItem.setImage(new Image(p_image_uri));        // image link
		menuItem.setId("header_menu_item_"+p_name);       // id
		menuItem.getStyleClass().add("header_menu_item"); // css .class

		/* (3) Bind event -> 'changeMainLayout' */
		menuItem.setOnMousePressed(new EventHandler<MouseEvent>() {

			@Override
            public void handle(MouseEvent event) {

				HeaderMenu.this.observer.handleEvent(new Classes.Event(menuItem.getId(), "changeMainLayout"));

            }

		});

		/* (4) Add item to list */
		this.items.add(menuItem);

		/* (5) Add gitem to gparent */
		parent.getChildren().add(menuItem);

	}

}