praktikum-holons/src/ui/view/GUI.java

package ui.view;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Image;
import java.awt.MouseInfo;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;

import javax.swing.AbstractAction;
import javax.swing.ActionMap;
import javax.swing.BoxLayout;
import javax.swing.DefaultComboBoxModel;
import javax.swing.ImageIcon;
import javax.swing.InputMap;
import javax.swing.JButton;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JEditorPane;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JScrollPane;
import javax.swing.JSlider;
import javax.swing.JSplitPane;
import javax.swing.JTabbedPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.JToolBar;
import javax.swing.JTree;
import javax.swing.KeyStroke;
import javax.swing.SwingUtilities;
import javax.swing.border.LineBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.plaf.FileChooserUI;
import javax.swing.table.DefaultTableModel;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreeCellRenderer;

import com.sun.corba.se.spi.orbutil.fsm.Action;

import Interfaces.CategoryListener;
import classes.Category;
import classes.CpsEdge;
import classes.CpsObject;
import classes.HolonElement;
import classes.HolonObject;
import classes.HolonSwitch;
import classes.HolonTransformer;
import classes.Position;
import ui.controller.Control;
import ui.model.Model;
import javax.swing.JList;
import javax.swing.Box;;

public class GUI<E> implements CategoryListener {

	private JFrame frmCyberPhysical;

	private final JMenuBar menuBar = new JMenuBar();
	private final JMenu mnNewMenu = new JMenu("File");
	private final JMenu mnNewMenu_1 = new JMenu("Edit");
	private final JMenu mnNewMenu_2 = new JMenu("Options");
	private final JMenu mnNewMenu_3 = new JMenu("View");
	private final JMenu mnHelp = new JMenu("Help");
	private final JMenuItem mntmOpen = new JMenuItem("Open");
	private final JMenuItem mntmNew = new JMenuItem("New");
	private final JMenuItem mntmSave = new JMenuItem("Save");
	private final JMenuItem aboutUs = new JMenuItem("About Us");
	private final JMenuItem canvasSize = new JMenuItem("View Size");
	private final JSplitPane splitPane = new JSplitPane();
	private final JSplitPane splitPane_1 = new JSplitPane();
	private final JScrollPane scrollPane_1 = new JScrollPane();
	private final JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.TOP);
	private final JScrollPane SimulationPane = new JScrollPane();
	private JPopupMenu popmenuEdit = new JPopupMenu();
	private JMenuItem editItem = new JMenuItem("Edit Object");
	private String catOfObjToBeEdited;

	private final JLabel maxGraph = new JLabel("100%");
	private final JLabel medGraph = new JLabel("50%");
	private final JLabel minGraph = new JLabel("0%");
	private final JLabel elementGraph = new JLabel("None ");
	private final ArrayList<HolonElement> selectedElements = new ArrayList<HolonElement>();
	private String holonEleNamesDisplayed = "None ";
	HashMap<Integer, ArrayList<HolonElement>> eleToDelete = new HashMap<Integer, ArrayList<HolonElement>>();
	private final JTree tree = new JTree();
	private final JEditorPane dtrpnHereWillBe = new JEditorPane();
	/******************************************
	 ************* Right Container*************
	 ******************************************/
	// Right Container: here comes the information about the HolonObject, such
	// as HolonElements Information, Properties and Consumption/Production graph

	private final JSplitPane split_HolonEl_Pro = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
	private final JSplitPane split_Graph_HolonEl = new JSplitPane(JSplitPane.VERTICAL_SPLIT);

	// In this section are all the Holonelements that correspond to the clicked
	// HolonObject with consumption/production, name and amount.

	private JTable tableHolonElement = new JTable();
	private PropertyTable tableModelHolonElementMulti = new PropertyTable();
	private PropertyTable tableModelHolonElementSingle = new PropertyTable();
	private final JPanel scrollElements = new JPanel();
	private JScrollPane tableHolonElementScrollPane = new JScrollPane();

	// In this section are all the properties that correspond to the clicked
	// HolonObject, such as connections, name, Type, etc.

	private JTable tableProperties = new JTable();
	private JPanel graphLabel = new JPanel();
	private DefaulTable tableModelProperties;
	private final JScrollPane scrollProperties = new JScrollPane();

	// In this section is the graph for the selected HolonElement of the clicked
	// HolonObject

	private JTable tableGraph = new JTable();
	private DefaultTableModel tableModelGraph = new DefaultTableModel();
	private final JScrollPane scrollGraph = new JScrollPane();

	private Model model;
	private final Control controller;

	// Pop up Windows
	private AddObjectPopUp addObjectPopUP;
	private AboutUsPopUp aboutUsPopUp;
	private AddElementPopUp addElementPopUp;

	private final JPanel panel = new JPanel();
	private final JPanel panel_HolonEl = new JPanel();
	private final JComboBox comboBox = new JComboBox();
	// private final JComboBox comboBoxGraph = new JComboBox();

	// Buttons
	private final JButton btnAdd = new JButton("+");
	private final JButton btnDel = new JButton("-");
	private final JButton btnAddHolEL = new JButton("+");
	private final JButton btnDelHolEL = new JButton("-");
	private final JButton resetGraphBtn = new JButton("Reset");

	private final JToolBar toolBar = new JToolBar();
	private final JToolBar toolBarHolonEl = new JToolBar();
	private final JToolBar toolBarGraph = new JToolBar();

	// variables
	private boolean dragging = false;
	private String actualObjectClicked;
	private Image img = null;
	private CpsObject tempCps = null;
	private HolonElement tempElement = null;
	private int yValueElements = 0;

	private MyCanvas canvas;
	private UnitGraph unitGraph;
	private final JSplitPane splitPane_3 = new JSplitPane();
	private final JSlider sizeSlider = new JSlider();
	private final JLabel lblImageSize = new JLabel("Image Size");
	// Time Stuff
	private TimePanel timePanel;
	private final JMenu mnAlgorithm = new JMenu("Algorithm");
	private final JCheckBoxMenuItem chckbxmntmUseAlgorithm = new JCheckBoxMenuItem("Use Algorithm");
	private final JComboBox comboBoxAlgo = new JComboBox();
	private int yTHIS;
	private int xTHIS;
	private int yBTHIS;
	private int xBTHIS;
	private CpsObject temp = null;
	private final JButton btnTest = new JButton("test");
	private final JMenuItem mntmUndo = new JMenuItem("Undo");
	private final JMenuItem mntmRedo = new JMenuItem("Redo");
	private final JMenuItem mntmEditEdges = new JMenuItem("Edit Edges");
	private final JMenuItem mntmFindReplace = new JMenuItem("Find/ Replace");
	private final JMenuItem mntmEditShowedInformation = new JMenuItem("Edit showed Information");
	private final JMenuItem mntmResetCategory = new JMenuItem("Reset Categories");
	private final JMenuItem mntmSetFolder = new JMenuItem("Set Folder");
	private final JMenu mnSimulationSpeed = new JMenu("Simulation Speed");
	private final JTextField simulationSpeedField = new JTextField();
	private final JButton btnApply = new JButton("Apply");

	/**
	 * Create the application.
	 */
	public GUI(Control control) {
		this.controller = control;
		this.model = control.getModel();
		this.canvas = new MyCanvas(model, control);
		this.unitGraph = new UnitGraph(model, control);
		control.initListener(this);
		initialize();
		updateCategories(model.getCategories());
		controller.setCanvas(canvas);
	}

	/**
	 * Initialize the contents of the frame.
	 */
	@SuppressWarnings({ "serial", "unchecked" })
	private void initialize() {
		simulationSpeedField.setColumns(10);
		frmCyberPhysical = new JFrame();
		frmCyberPhysical.setTitle("Cyber Physical Systems Model");
		frmCyberPhysical.setBounds(100, 100, 1000, 800);
		frmCyberPhysical.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
		frmCyberPhysical.addWindowListener(new java.awt.event.WindowAdapter() {
			@Override
			public void windowClosing(java.awt.event.WindowEvent windowEvent) {
				if (JOptionPane.showConfirmDialog(frmCyberPhysical, "Are you sure you want to exit?",
						"Cyber Physical Systems Model", JOptionPane.YES_NO_OPTION,
						JOptionPane.QUESTION_MESSAGE) == JOptionPane.YES_OPTION) {
					deleteDirectory(new File(System.getProperty("user.home") + "/HolonGUI/Autosave"));
					System.exit(0);
				}
			}

			private void deleteDirectory(File path) {
				if (path.exists()) {
					File[] files = path.listFiles();
					for (int i = 0; i < files.length; i++) {
						if (files[i].isDirectory()) {
							deleteDirectory(files[i]);
						} else {
							files[i].delete();
						}
					}
					path.delete();
				}
			}
		});

		JPanel contentPane = (JPanel) frmCyberPhysical.getContentPane();

		int condition = JComponent.WHEN_IN_FOCUSED_WINDOW;
		InputMap inputMap = contentPane.getInputMap(condition);
		ActionMap actionMap = contentPane.getActionMap();

		String cntrlZDown = "controlZ";
		inputMap.put(KeyStroke.getKeyStroke("control Z"), cntrlZDown);
		actionMap.put(cntrlZDown, new AbstractAction() {

			@Override
			public void actionPerformed(ActionEvent e) {
				try {
					controller.loadFile(controller.getUndoSave());
					canvas.repaint();
					ArrayList<HolonElement> tempList = new ArrayList<>();
					for (CpsObject cps : model.getObjectsOnCanvas()) {
						if (cps instanceof HolonObject) {
							for (HolonElement h : ((HolonObject) cps).getElements()) {
								tempList.add(h);
								unitGraph.repaintWithNewElement(tempList);
								unitGraph.fillArrayofValue();
								tempList.remove(0);
							}
						} else if (cps instanceof HolonSwitch) {
							unitGraph.repaintWithNewSwitch((HolonSwitch) cps);
							unitGraph.fillArrayofBooleans();
						}
					}
					unitGraph.empty();
				} catch (IOException f) {
					// TODO Auto-generated catch block
					f.printStackTrace();
				}
			}
		});

		String cntrlYDown = "controlY";
		inputMap.put(KeyStroke.getKeyStroke("control Y"), cntrlYDown);
		actionMap.put(cntrlYDown, new AbstractAction() {

			@Override
			public void actionPerformed(ActionEvent e) {
				try {
					controller.loadFile(controller.getRedoSave());
					canvas.repaint();
					ArrayList<HolonElement> tempList = new ArrayList<>();
					for (CpsObject cps : model.getObjectsOnCanvas()) {
						if (cps instanceof HolonObject) {
							for (HolonElement h : ((HolonObject) cps).getElements()) {
								tempList.add(h);
								unitGraph.repaintWithNewElement(tempList);
								unitGraph.fillArrayofValue();
								tempList.remove(0);
							}
						} else if (cps instanceof HolonSwitch) {
							unitGraph.repaintWithNewSwitch((HolonSwitch) cps);
							unitGraph.fillArrayofBooleans();
						}
					}
					unitGraph.empty();
				} catch (IOException f) {
					// TODO Auto-generated catch block
					f.printStackTrace();
				}
			}
		});

		String delDown = "delete";
		inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0, false), delDown);
		actionMap.put(delDown, new AbstractAction() {
			@Override
			public void actionPerformed(ActionEvent e) {
				for (CpsObject cps : model.getSelectedCpsObjects()) {
					controller.delCanvasObject(cps);
				}
				model.getSelectedCpsObjects().clear();
				/*
				 * controller.setSelectedObjectID(0); for (int i =
				 * tableModelHolonElementMulti.getRowCount() - 1; i > -1; i--) {
				 * tableModelHolonElementMulti.removeRow(i); } for (int i =
				 * tableModelHolonElementSingle.getRowCount() - 1; i > -1; i--)
				 * { tableModelHolonElementSingle.removeRow(i); } for (int i =
				 * tableModelProperties.getRowCount() - 1; i > -1; i--) {
				 * tableModelProperties.removeRow(i); }
				 */
				canvas.repaint();
				unitGraph.empty();
			}
		});

		String cntrlCDown = "controlC";
		inputMap.put(KeyStroke.getKeyStroke("control C"), cntrlCDown);
		actionMap.put(cntrlCDown, new AbstractAction() {

			@Override
			public void actionPerformed(ActionEvent e) {
				if (!model.getSelectedCpsObjects().isEmpty()) {
					System.out.println("copy");
					controller.copyObjects();
					if (!model.getClipboradObjects().isEmpty()) {
						canvas.itemPaste.setEnabled(true);
					}
				}
			}
		});

		String cntrlVDown = "controlV";
		inputMap.put(KeyStroke.getKeyStroke("control V"), cntrlVDown);
		actionMap.put(cntrlVDown, new AbstractAction() {

			@Override
			public void actionPerformed(ActionEvent e) {
				controller.pasteObjects(canvas.getMousePosition());
				canvas.repaint();
			}
		});

		String cntrlXDown = "controlX";
		inputMap.put(KeyStroke.getKeyStroke("control X"), cntrlXDown);
		actionMap.put(cntrlXDown, new AbstractAction() {

			@Override
			public void actionPerformed(ActionEvent e) {
				if (!model.getSelectedCpsObjects().isEmpty()) {
					controller.cutObjects();
					if (!model.getClipboradObjects().isEmpty()) {
						canvas.itemPaste.setEnabled(true);
					}
					canvas.repaint();
					System.out.println("cut");
				}
			}
		});

		frmCyberPhysical.setJMenuBar(menuBar);

		frmCyberPhysical.setIconImage(new ImageIcon(this.getClass().getResource("/Images/Dummy_House.png")).getImage()
				.getScaledInstance(30, 30, Image.SCALE_SMOOTH));

		menuBar.add(mnNewMenu);

		mnNewMenu.add(mntmNew);

		mnNewMenu.add(mntmOpen);

		mnNewMenu.add(mntmSave);

		menuBar.add(mnNewMenu_1);

		mnNewMenu_1.add(mntmUndo);

		mnNewMenu_1.add(mntmRedo);
		mntmFindReplace.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				try {

					searchPopUp dialog = new searchPopUp(controller, canvas);
					dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
					dialog.setVisible(true);
				} catch (Exception e1) {
					e1.printStackTrace();
				}
			}
		});

		mnNewMenu_1.add(mntmFindReplace);
		mntmEditShowedInformation.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				try {
					ShowedInformationPopUp dialog = new ShowedInformationPopUp(canvas);
					dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
					dialog.setVisible(true);
				} catch (Exception e1) {
					e1.printStackTrace();
				}
			}
		});

		mnNewMenu_1.add(mntmEditShowedInformation);

		menuBar.add(mnNewMenu_2);
		mntmEditEdges.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				EditEdgesPopUp edgePopUp = new EditEdgesPopUp();
				edgePopUp.setCanvas(canvas);
				edgePopUp.setController(controller);
				edgePopUp.setVisible(true);
			}
		});

		mnNewMenu_2.add(mntmEditEdges);

		mnNewMenu_2.add(mntmResetCategory);

		mnNewMenu_2.add(mnSimulationSpeed);

		mnSimulationSpeed.add(simulationSpeedField);
		mntmResetCategory.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				ArrayList<Category> cat = model.getCategories();
				while (!cat.isEmpty()) {
					controller.deleteCategory(cat.get(0).getName());
					;
				}
				controller.resetCategorys();
				tree.repaint();
			}
		});

		menuBar.add(mnNewMenu_3);

		mnNewMenu_3.add(canvasSize);
		canvasSize.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				JPanel myPanel = new JPanel();
				JTextField field1 = new JTextField("" + canvas.getWidth() + "");
				JTextField field2 = new JTextField("" + canvas.getHeight() + "");
				myPanel.add(field1);
				myPanel.add(field2);
				JOptionPane.showMessageDialog(null, myPanel);
				canvas.setPreferredSize(
						new Dimension(Integer.parseInt(field1.getText()), Integer.parseInt(field2.getText())));
				canvas.repaint();
			}
		});

		mnNewMenu_3.add(splitPane_3);

		sizeSlider.setMinimum(15);
		sizeSlider.setMaximum(115);
		sizeSlider.addChangeListener(new ChangeListener() {
			@Override
			public void stateChanged(ChangeEvent e) {
				controller.setScale(sizeSlider.getValue());
				tree.setRowHeight(model.getScale());
				canvas.objectSelectionHighlighting();
				canvas.repaint();
			}
		});
		splitPane_3.setRightComponent(sizeSlider);

		splitPane_3.setLeftComponent(lblImageSize);

		menuBar.add(mnHelp);

		mnHelp.add(aboutUs);

		menuBar.add(mnAlgorithm);

		mnAlgorithm.add(mntmSetFolder);

		mnAlgorithm.add(chckbxmntmUseAlgorithm);

		canvas.setBackground(Color.WHITE);
		canvas.setPreferredSize(new Dimension(1000, 1000));
		JScrollPane canvasSP = new JScrollPane(canvas);
		canvasSP.setBorder(null);

		tabbedPane.addTab("Modeling", new ImageIcon(new ImageIcon(this.getClass().getResource("/Images/home.png"))
				.getImage().getScaledInstance(30, 30, Image.SCALE_SMOOTH)), canvasSP, "Model a CPS");

		tabbedPane.addTab("Simulation",
				new ImageIcon(new ImageIcon(this.getClass().getResource("/Images/Dummy_House.png")).getImage()
						.getScaledInstance(30, 30, Image.SCALE_SMOOTH)),
				SimulationPane, "Simulate the CPS");
		dtrpnHereWillBe.setText("Here will be the Simulation");

		SimulationPane.setViewportView(dtrpnHereWillBe);

		/********************
		 * RIGHT CONTAINER (INFORMATION)
		 **********************/
		// Set up of the HolonElements section
		Object[] columnNamesMulti = { "Object", "ID", "Device", "Energy", "Quantity", "Activated" };
		tableModelHolonElementMulti.setColumnIdentifiers(columnNamesMulti);
		Object[] columnNamesSingle = { "ID", "Device", "Energy", "Quantity", "Activated" };
		tableModelHolonElementSingle.setColumnIdentifiers(columnNamesSingle);
		tableHolonElement.setBorder(null);

		tableHolonElement.setFillsViewportHeight(true);
		tableHolonElement.setCellSelectionEnabled(true);
		tableHolonElement.setColumnSelectionAllowed(true);
		tableHolonElementScrollPane.setViewportView(tableHolonElement);
		scrollElements.setLayout(new BorderLayout(0, 0));
		scrollElements.add(panel_HolonEl, BorderLayout.NORTH);
		scrollElements.add(tableHolonElementScrollPane);
		panel_HolonEl.setLayout(new BoxLayout(panel_HolonEl, BoxLayout.X_AXIS));
		toolBarHolonEl.add(btnAddHolEL);
		toolBarHolonEl.add(btnDelHolEL);
		toolBarHolonEl.setFloatable(false);
		panel_HolonEl.add(toolBarHolonEl);

		// Set up of the Properties section
		Object[] colNames = { "Field", "Information" };
		tableModelProperties = new DefaulTable(100, colNames.length);
		tableModelProperties.setColumnIdentifiers(colNames);
		tableProperties.setModel(tableModelProperties);
		tableProperties.setFillsViewportHeight(true);
		tableProperties.setCellSelectionEnabled(true);
		tableProperties.setColumnSelectionAllowed(true);
		scrollProperties.setViewportView(tableProperties);

		// Set up of the Graph section
		Object[] tempText = { "Here comes the graph for each clicked HolonElement" };
		tableModelGraph.setColumnIdentifiers(tempText);
		tableGraph.setModel(tableModelGraph);
		tableGraph.setFillsViewportHeight(true);
		tableGraph.setCellSelectionEnabled(true);
		tableGraph.setColumnSelectionAllowed(true);
		scrollGraph.setViewportView(unitGraph);
		graphLabel.setLayout(new BorderLayout(0, 10));
		graphLabel.add(maxGraph, BorderLayout.NORTH);
		graphLabel.add(medGraph, BorderLayout.CENTER);
		graphLabel.add(minGraph, BorderLayout.SOUTH);
		toolBarGraph.add(elementGraph);
		toolBarGraph.add(resetGraphBtn);
		toolBarGraph.setFloatable(false);
		scrollGraph.setRowHeaderView(graphLabel);
		scrollGraph.setColumnHeaderView(toolBarGraph);

		/***********************
		 * HolonElement Table Actions
		 **********************/
		/*
		 * Add HolonElement to given HolonObject
		 */
		btnAddHolEL.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				if (model.getSelectedCpsObjects().size() == 1) {
					CpsObject tempCpsObject = getActualCps();
					if (tempCpsObject != null && tempCpsObject.getClass() == HolonObject.class
							&& tempCpsObject.getID() != 0) {
						addElementPopUp = new AddElementPopUp();
						addElementPopUp.setActualCps(getActualCps());
						addElementPopUp.setVisible(true);
						HolonElement ele = addElementPopUp.getElement();
						controller.addElementCanvasObject(tempCpsObject.getID(), ele.getEleName(), ele.getAmount(),
								ele.getEnergy());
						refreshTableHolonElement();
						refreshTableProperties();
						controller.calculateStateForTimeStep(model.getCurIteration());
					}
				}
			}
		});
		/*
		 * Delete the choosen HolonElement of the selected HolonObject
		 */
		btnDelHolEL.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				if (model.getSelectedCpsObjects().size() == 1) {
					if (getActualCps().getClass() == HolonObject.class) {
						HolonObject obj = (HolonObject) getActualCps();
						for (HolonElement e : selectedElements) {
							controller.deleteElementCanvas(obj.getID(), e.getEleName());
							refreshTableHolonElement();
							refreshTableProperties();
							controller.calculateStateForTimeStep(model.getCurIteration());
							// Names displayed in graph are not updated
						}
					}
				} else if (model.getSelectedCpsObjects().size() > 1) {
					for (Integer i : eleToDelete.keySet()) {
						for (HolonElement e : eleToDelete.get(i)) {
							controller.deleteElementCanvas(i, e.getEleName());
						}
					}
					refreshTableHolonElement();
					refreshTableProperties();
				}
				holonEleNamesDisplayed = "None ";
			}
		});
		/*
		 * Communication between HolonElement Table and displayed Graph
		 */
		tableHolonElement.addMouseListener(new MouseAdapter() {
			public void mousePressed(MouseEvent e) {
				HolonObject obj = (HolonObject) getActualCps();
				yValueElements = e.getY();
				HolonElement ele = null;
				if (model.getSelectedCpsObjects().size() == 1) {
					ele = getActualHolonElement(obj, yValueElements, 0);
				} else {
					ele = getActualHolonElement(null, yValueElements, 0);
				}
				if (e.isControlDown() && ele != null) {
					if (!selectedElements.contains(ele)) {
						selectedElements.add(ele);
						if (!holonEleNamesDisplayed.equals("None ")) {
							holonEleNamesDisplayed = holonEleNamesDisplayed + "; " + ele.getEleName() + " ";
						} else {
							holonEleNamesDisplayed = ele.getEleName() + " ";
						}
						unitGraph.repaintWithNewElement(selectedElements);
					}
					getActualHolonElement(null, yValueElements, 2);
				} else if (ele != null) {
					selectedElements.clear();
					selectedElements.add(ele);
					getActualHolonElement(null, yValueElements, 1);
					holonEleNamesDisplayed = ele.getEleName() + " ";
					unitGraph.repaintWithNewElement(selectedElements);
				} else {
					elementGraph.setText("None ");
					unitGraph.empty();
				}
				// if any HolonElement is double-clicked --> Edit instance of
				// selected HolonElement
				if (e.getClickCount() == 2) {
					yTHIS = e.getY();
					xTHIS = e.getX();
				}
				if (e.getClickCount() == 1 && ele == null) {
					selectedElements.clear();
					holonEleNamesDisplayed = "None ";
				}
				// for (int i = 0; i < selectedElements.size(); i++) {
				// if (i == 0) {
				// System.out.println("Selected Items: " +
				// selectedElements.get(i).getEleName());
				// } else {
				// System.out.println(selectedElements.get(i).getEleName());
				// }
				// }
				elementGraph.setText(holonEleNamesDisplayed);
				yBTHIS = e.getY();
				xBTHIS = e.getX();

			}
		});

		/*
		 * If the HolonElement Table enters to editing instance, than is the
		 * propertyChangeListener triggered
		 */
		tableHolonElement.addPropertyChangeListener(new PropertyChangeListener() {
			@Override
			public void propertyChange(PropertyChangeEvent evt) {
				try {
					int yMouse = yTHIS;
					int yBMouse = yBTHIS;
					int selectedValueY = (int) Math.floor(yMouse / 16);
					int selectedValueBY = (int) Math.floor(yBMouse / 16);
					if (model.getSelectedCpsObjects().size() > 1) {
						// Multiple Selection
						int selectedValueX = (int) Math.floor(xTHIS / (tableHolonElement.getWidth() / 6));
						int selectedValueBX = (int) Math.floor(xBTHIS / (tableHolonElement.getWidth() / 6));
						if (getHolonObj(yMouse) != null) {
							if (selectedValueBX == 5) {
								HolonElement eleBTemp = getActualHolonElement(null, yBMouse, 0);
								String newBStuff = tableModelHolonElementMulti
										.getValueAt(selectedValueBY, selectedValueBX).toString();
								Boolean bTemp = Boolean.parseBoolean(newBStuff);
								eleBTemp.setActive(bTemp);
							} else {
								HolonElement eleTemp = getActualHolonElement(null, yMouse, 0);
								String newStuff = tableModelHolonElementMulti.getValueAt(selectedValueY, selectedValueX)
										.toString();
								if (selectedValueX == 2) {
									eleTemp.setEleName(newStuff);
								} else if (selectedValueX == 3) {
									Float ftemp = Float.parseFloat(newStuff);
									eleTemp.setEnergy(ftemp);
								} else if (selectedValueX == 4) {
									Integer iTemp = Integer.parseInt(newStuff);
									eleTemp.setAmount(iTemp);
								}
							}
						}
					} else if (model.getSelectedCpsObjects().size() == 1) {
						// Single Selection
						int selectedValueX = (int) Math.floor(xTHIS / (tableHolonElement.getWidth() / 5));
						int selectedValueBX = (int) Math.floor(xBTHIS / (tableHolonElement.getWidth() / 5));
						if (getActualCps() != null && getActualCps().getClass() == HolonObject.class) {
							if (selectedValueBX == 4) {
								HolonElement eleBTemp = getActualHolonElement((HolonObject) getActualCps(), yBMouse, 0);
								String newBStuff = tableModelHolonElementSingle
										.getValueAt(selectedValueBY, selectedValueBX).toString();
								Boolean bTemp = Boolean.parseBoolean(newBStuff);
								eleBTemp.setActive(bTemp);
							} else {
								HolonElement eleTemp = getActualHolonElement((HolonObject) getActualCps(), yMouse, 0);
								String newStuff = tableModelHolonElementSingle
										.getValueAt(selectedValueY, selectedValueX).toString();
								if (selectedValueX == 1) {
									eleTemp.setEleName(newStuff);
								} else if (selectedValueX == 2) {
									Float ftemp = Float.parseFloat(newStuff);
									eleTemp.setEnergy(ftemp);
								} else if (selectedValueX == 3) {
									Integer iTemp = Integer.parseInt(newStuff);
									eleTemp.setAmount(iTemp);
								}
							}
							refreshTableProperties();
							tableModelHolonElementSingle.fireTableDataChanged();
							controller.calculateStateForTimeStep(model.getCurIteration());
							unitGraph.repaint();
						}
					}
				} catch (Exception e) {

				}
			}
		});
		/***********************
		 * HolonElement Properties Actions
		 **********************/
		/*
		 * If any value at the Properties Table enters to editing instance, than
		 * is PropertyChangeListener triggered (For HolonObject, the only value
		 * to be edited is the name and for CpsEdge the Max.flow)
		 */
		tableProperties.addPropertyChangeListener(new PropertyChangeListener() {

			@Override
			public void propertyChange(PropertyChangeEvent evt) {
				try {
					Object temp;
					if (getActualCps() != null) {
						if (getActualCps() instanceof HolonObject) {
							temp = tableModelProperties.getValueAt(0, 1);
							getActualCps().setName(temp.toString());
						}
					} else {
						Point mousePos = tableProperties.getMousePosition();
						temp = tableModelProperties.getValueAt(mousePos.y / tableProperties.getRowHeight(),
								mousePos.x / (tableProperties.getWidth() / 2));
						if (mousePos.y / tableProperties.getRowHeight() == 2) {
							Float ftemp;
							if (Float.parseFloat(temp.toString()) >= 0.0) {
								ftemp = Float.parseFloat(temp.toString());
							} else {
								ftemp = model.getSelectedEdge().getCapacity();
							}
							model.getSelectedEdge().setCapacity(ftemp);
						} else if (mousePos.y / tableProperties.getRowHeight() == 3) {
							Boolean bTemp = Boolean.parseBoolean(temp.toString());
							model.getSelectedEdge().setState(bTemp);
						}
					}
					canvas.repaint();
				} catch (Exception e) {

				}
			}
		});

		/***********************
		 * HolonElement Graph Actions
		 **********************/
		/*
		 * Reset the graph of the selected HolonElement
		 */
		resetGraphBtn.setBorder(new LineBorder(Color.BLACK));
		resetGraphBtn.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				unitGraph.reset();
			}
		});
		/*****************************
		 * RIGHT CONTAINER DONE
		 *****************************/

		frmCyberPhysical.getContentPane().setLayout(new BorderLayout(0, 0));

		TreeCellRenderer customRenderer = new TreeCellRenderer() {
			@Override
			public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected, boolean expanded,
					boolean leaf, int row, boolean hasFocus) {
				JLabel label = new JLabel();
				Image imgR = null;
				if (leaf) {
					for (Category cat : model.getCategories()) {
						for (CpsObject cps : cat.getObjects()) {
							if (value.toString().compareTo(cps.getObjName()) == 0) {
								File checkPath = new File(cps.getImage());
								if (checkPath.exists()) {
									imgR = new ImageIcon(cps.getImage()).getImage().getScaledInstance(
											controller.getScale(), controller.getScale(), java.awt.Image.SCALE_SMOOTH);
								} else {
									imgR = new ImageIcon(this.getClass().getResource(cps.getImage())).getImage()
											.getScaledInstance(controller.getScale(), controller.getScale(),
													java.awt.Image.SCALE_SMOOTH);
								}
								if (imgR != null) {
									label.setIcon(new ImageIcon(imgR));
								}
								label.setText(cps.getName());
							}
						}
					}
				}
				tree.setRowHeight(model.getScale());
				if (hasFocus) {
					label.setForeground(new Color(0, 0, 255));
					label.setOpaque(true);
				}
				if (label.getText().length() == 0) {
					label.setText(value.toString());
					if (value.toString().compareTo("Categories") != 0) {
						label.setIcon(new ImageIcon(this.getClass().getResource("/Images/folder.png")));
					}
				}

				return label;

			}
		};

		tree.setCellRenderer(customRenderer);

		tree.addMouseListener(new MouseAdapter() {
			public void mouseReleased(MouseEvent e) {
				try {
					if (dragging) {
						int x = (int) canvas.getMousePosition().getX();
						int y = (int) canvas.getMousePosition().getY();
						CpsObject h = null;
						if (tempCps.getClass() == HolonObject.class) {
							h = new HolonObject(tempCps);
						}
						if (tempCps.getClass() == HolonSwitch.class) {
							h = new HolonSwitch(tempCps);
						}
						if (tempCps.getClass() == HolonTransformer.class) {
							h = new HolonTransformer(tempCps);
						}

						h.setPosition(x, y);
						controller.addObjectCanvas(h);
						canvas.repaint();
						dragging = false;
					}
				} catch (Exception e2) {
				}
				frmCyberPhysical.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
			}
		});

		popmenuEdit.add(editItem);
		editItem.setEnabled(false);
		editItem.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
			}
		});
		tree.addMouseListener(new MouseAdapter() {
			public void mousePressed(MouseEvent e) {
				try {
					actualObjectClicked = tree.getPathForLocation(e.getX(), e.getY()).getLastPathComponent().toString();
					// if an Object was selected, the porperties are shown in
					// the table
					DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode) tree
							.getPathForLocation(e.getX(), e.getY()).getLastPathComponent();
					if (selectedNode.getLevel() == 2) {
						CpsObject selected = controller.searchCategoryObject(selectedNode.getParent().toString(),
								selectedNode.toString());
						deleteRows(tableModelHolonElementSingle);
						deleteRows(tableModelHolonElementMulti);
						// if (selected instanceof HolonObject && selected !=
						// null) {
						// selected = (HolonObject) selected;
						// fillElementTable(((HolonObject)
						// selected).getElements());
						// }
					}
					if (SwingUtilities.isRightMouseButton(e)) {
						for (Category cat : model.getCategories()) {
							for (CpsObject cps : cat.getObjects()) {
								if (actualObjectClicked.compareTo(cps.getObjName()) == 0
										&& !(cps instanceof HolonSwitch)) {
									editItem.setEnabled(true);
									popmenuEdit.show(e.getComponent(), e.getX(), e.getY());
									catOfObjToBeEdited = selectedNode.getParent().toString();
									tempCps = cps;
								}
							}
						}
					} else {
						for (Category cat : model.getCategories()) {
							for (CpsObject cps : cat.getObjects()) {
								if (actualObjectClicked.compareTo(cps.getObjName()) == 0) {
									File checkPath = new File(cps.getImage());
									if (checkPath.exists()) {
										img = new ImageIcon(cps.getImage()).getImage().getScaledInstance(
												controller.getScale(), controller.getScale(),
												java.awt.Image.SCALE_SMOOTH);
									} else {
										img = new ImageIcon(this.getClass().getResource(cps.getImage())).getImage()
												.getScaledInstance(controller.getScale(), controller.getScale(),
														java.awt.Image.SCALE_SMOOTH);
									}
									tempCps = cps;
									dragging = true;
									Cursor cursor = Toolkit.getDefaultToolkit().createCustomCursor(img, new Point(0, 0),
											"Image");
									frmCyberPhysical.setCursor(cursor);
								}
							}
						}
					}
				} catch (Exception e2) {
				}
			}
		});
		editItem.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				// Remove the selected Object object
				addObjectPopUP = new AddObjectPopUp(true, tempCps, catOfObjToBeEdited);
				addObjectPopUP.setCategory(catOfObjToBeEdited);
				addObjectPopUP.setController(controller);
				addObjectPopUP.setVisible(true);
			}
		});
		scrollPane_1.setViewportView(tree);

		scrollPane_1.setColumnHeaderView(panel);
		panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
		toolBar.setFloatable(false);

		panel.add(toolBar);
		toolBar.add(comboBox);
		comboBox.setModel(new DefaultComboBoxModel(new String[] { "Category", "Object", "Transformer", "Switch" }));
		// Add Button
		btnAdd.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {

				Object nodeInfo = tree.getLastSelectedPathComponent();
				String selectedOption = comboBox.getSelectedItem().toString();
				DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode) nodeInfo;

				switch (selectedOption) {

				case "Category":
					String catName = JOptionPane.showInputDialog("Please enter a Name for Category ");
					if (catName.length() != 0) {
						controller.addCategory(catName);
					}
					break;

				case "Object":
					if (selectedNode == null) {
						JOptionPane.showMessageDialog(new JFrame(),
								"Please select a Category first before adding " + selectedOption + ".");
					}
					if (selectedNode.getLevel() == 1) {
						CpsObject tmp = new HolonObject("");
						addObjectPopUP = new AddObjectPopUp(false, tmp, null);
						addObjectPopUP.setVisible(true);
						addObjectPopUP.setController(controller);
						addObjectPopUP.setCategory(selectedNode.toString());
					}
					break;

				default:
					addObjectAction(selectedOption, selectedNode);
					break;
				}
				tree.repaint();
			}
		});
		/**
		 * Pop up - About Us with some important information about the
		 * developers, source and programming stuff
		 */
		aboutUs.addMouseListener(new MouseAdapter() {
			@Override
			public void mousePressed(MouseEvent e) {
				aboutUsPopUp = new AboutUsPopUp();
				aboutUsPopUp.setVisible(true);
			}
		});

		/**
		 * Update of every interaction between the user and the canvas (only on
		 * the canvas). Basically the update of all the information concerning
		 * the clicked HolonObject
		 */
		canvas.addMouseListener(new MouseAdapter() {

			@Override
			public void mousePressed(MouseEvent e) {
				selectedElements.clear();
				holonEleNamesDisplayed = "None ";

				if (temp == null || temp.getID() != model.getSelectedObjectID()) {
					unitGraph.empty();
					elementGraph.setText("None ");
				}
				temp = getActualCps();
				// Update of the Information about the HolonElements - only for
				// if (temp instanceof HolonObject) {
				// refreshTableHolonElement();
				// }
				// Update of the Information about the Properties - only for
				// CpsObjects
				// Erase old data
				if (tableModelProperties.getRowCount() > 0) {
					for (int i = tableModelProperties.getRowCount() - 1; i > -1; i--) {
						tableModelProperties.removeRow(i);
					}
				}
				if (e.isControlDown() && temp != null) {
					if (model.getSelectedCpsObjects().contains(temp)) {
						controller.deleteSelectedObject(temp);
					} else {
						controller.addSelectedObject(temp);
					}
				}
				// } else if (e.isShiftDown() && model.getSelectedEdge() !=
				// null) {
				// selectedObjects.add(model.getSelectedEdge());
				// }
				// boolean nothingImportant = true;
				// for (CpsObject c : model.getSelectedCpsObjects()) {
				// if (nothingImportant) {
				// System.out.println("Elements: " + c.getName() + " and ID: " +
				// c.getID());
				// nothingImportant = false;
				// } else {
				// System.out.println(c.getName() + " and ID: " + c.getID());
				// }
				// }
				// Write new data
				if (temp != null) {
					Object[] tempName = { "Name", temp.getName() };
					tableModelProperties.addRow(tempName);
					Object[] tempId = { "ID", temp.getID() };
					tableModelProperties.addRow(tempId);
					if (temp instanceof HolonObject) {
						refreshTableHolonElement();
						Object[] tempEnergy = { "Total Energy", ((HolonObject) temp).getCurrentEnergy() };
						tableModelProperties.addRow(tempEnergy);
						// } else if (temp instanceof HolonTransformer) {
						// deleteRows();
						// Object[] tempRatioPerc = { "Ratio Type", true };
						// tableModelProperties.addRow(tempRatioPerc);
					} else if (temp instanceof HolonSwitch) {
						deleteRows(tableModelHolonElementSingle);
						deleteRows(tableModelHolonElementMulti);
						Object[] tempActive = { "Active", ((HolonSwitch) temp).getActiveAt()[model.getCurIteration()] };
						tableModelProperties.addRow(tempActive);
						unitGraph.repaintWithNewSwitch((HolonSwitch) temp);
						elementGraph.setText(temp.getName());
					} else {
						deleteRows(tableModelHolonElementSingle);
						deleteRows(tableModelHolonElementMulti);
					}
					tableModelProperties.setCellEditable(0, 1, true);
					tableModelProperties.setCellEditable(2, 1, false);
					tableModelProperties.setCellEditable(3, 1, false);
					ArrayList<CpsEdge> temp_array = temp.getConnections();
					if (!temp_array.isEmpty()) {
						boolean first = true;
						for (CpsEdge temp2 : temp_array) {
							if (first) {
								first = false;
								if (temp.getID() != temp2.getA().getID()) {
									Object[] tempConnection = { temp.getName() + " is connected to",
											temp2.getA().getName() + " with ID: " + temp2.getA().getID() };
									tableModelProperties.addRow(tempConnection);
								} else {
									Object[] tempConnection = { temp.getName() + " is connected to",
											temp2.getB().getName() + " with ID: " + temp2.getB().getID() };
									tableModelProperties.addRow(tempConnection);
								}
							} else {
								if (temp.getID() != temp2.getA().getID()) {
									Object[] tempConnection = { "",
											temp2.getA().getName() + " with ID: " + temp2.getA().getID() };
									tableModelProperties.addRow(tempConnection);
								} else {
									Object[] tempConnection = { "",
											temp2.getB().getName() + " with ID: " + temp2.getB().getID() };
									tableModelProperties.addRow(tempConnection);
								}
							}
						}
					}
				} else if (model.getSelectedEdge() != null) {
					Object[] tempName = { "Name", "Edge: " + model.getSelectedEdge().getA().getName() + " to "
							+ model.getSelectedEdge().getB().getName() };
					tableModelProperties.addRow(tempName);
					Object[] tempFlow = { "Current flow", model.getSelectedEdge().getFlow() };
					tableModelProperties.addRow(tempFlow);
					Object[] tempCapacity = { "Max. Capacity", model.getSelectedEdge().getCapacity() };
					tableModelProperties.addRow(tempCapacity);
					Object[] tempStatus = { "Status", model.getSelectedEdge().getStateEdge() };
					tableModelProperties.addRow(tempStatus);
					tableModelProperties.setCellEditable(0, 1, false);
					tableModelProperties.setCellEditable(2, 1, true);
					tableModelProperties.setCellEditable(3, 1, true);
				} else if (getActualCps() == null) {
					deleteRows(tableModelHolonElementSingle);
					deleteRows(tableModelHolonElementMulti);
				}
				if (model.getSelectedCpsObjects().size() > 1) {
					tableHolonElement.setModel(tableModelHolonElementMulti);
				} else if (model.getSelectedCpsObjects().size() == 1) {
					tableHolonElement.setModel(tableModelHolonElementSingle);
				}
			}

			@Override
			public void mouseReleased(MouseEvent e) {
				refreshTableHolonElement();
				refreshTableProperties();
				if (model.getSelectedCpsObjects().size() > 1) {
					tableHolonElement.setModel(tableModelHolonElementMulti);
				} else if (model.getSelectedCpsObjects().size() == 1) {
					tableHolonElement.setModel(tableModelHolonElementSingle);
				}
			}

		});

		toolBar.add(btnAdd);

		// Del Button
		btnDel.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {

				Object nodeInfo = tree.getLastSelectedPathComponent();
				if (nodeInfo != null) {
					DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode) nodeInfo;
					String nodeName = selectedNode.getUserObject().toString();
					int depthOfNode = selectedNode.getLevel();

					switch (depthOfNode) {
					case 1:
						int dialogResult = JOptionPane.showConfirmDialog(null,
								"Do you realy want to delete the Category " + nodeName + "?", "Warning",
								JOptionPane.YES_NO_OPTION);
						if (dialogResult == JOptionPane.YES_OPTION) {
							controller.deleteCategory(nodeName);
						}
						break;
					case 2:
						DefaultMutableTreeNode parent = (DefaultMutableTreeNode) selectedNode.getParent();
						controller.delObjectCategory(parent.getUserObject().toString(), nodeName);
						break;

					default:
						JOptionPane.showMessageDialog(new JFrame(),
								"Please select a Category or an Object in order to delete something.");
					}
				} else {
					JOptionPane.showMessageDialog(new JFrame(),
							"Please select a Category or an Object in order to delete something.");
				}
				tree.repaint();
			}
		});
		toolBar.add(btnDel);

		frmCyberPhysical.getContentPane().add(splitPane);

		mntmNew.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent arg0) {
				model.getEdgesOnCanvas().removeAll(model.getEdgesOnCanvas());
				model.getObjectsOnCanvas().removeAll(model.getObjectsOnCanvas());
				controller.setSelectedObjectID(0);
				controller.setSelecteEdge(null);
				controller.setCurIteration(0);
				unitGraph.empty();
				elementGraph.setText("None ");
				canvas.tempCps = null;
				canvas.objectSelectionHighlighting();
				canvas.repaint();
			}
		});

		mntmOpen.addActionListener(new java.awt.event.ActionListener() {
			@Override
			public void actionPerformed(java.awt.event.ActionEvent evt) {
				menuFileExitActionPerformed(evt);

			}

			private void menuFileExitActionPerformed(java.awt.event.ActionEvent evt) {
				JFileChooser fileChooser = new JFileChooser();
				JFrame test = new JFrame();
				FileNameExtensionFilter jsonFilter = new FileNameExtensionFilter("*.json", "json");
				fileChooser.setFileFilter(jsonFilter);

				if (fileChooser.showOpenDialog(test) == JFileChooser.APPROVE_OPTION) {
					File file = fileChooser.getSelectedFile();

					try {
						controller.loadFile(file.getAbsolutePath());
						canvas.repaint();
						ArrayList<HolonElement> tempList = new ArrayList<>();
						for (CpsObject cps : model.getObjectsOnCanvas()) {
							if (cps instanceof HolonObject) {
								for (HolonElement h : ((HolonObject) cps).getElements()) {
									tempList.add(h);
									unitGraph.repaintWithNewElement(tempList);
									unitGraph.fillArrayofValue();
									tempList.remove(0);
								}
							} else if (cps instanceof HolonSwitch) {
								unitGraph.repaintWithNewSwitch((HolonSwitch) cps);
								unitGraph.fillArrayofBooleans();
							}
						}
						unitGraph.empty();
						tree.repaint();
					} catch (IOException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
			}
		});

		mntmSave.addActionListener(new java.awt.event.ActionListener() {
			@Override
			public void actionPerformed(java.awt.event.ActionEvent evt) {

				menuSaveActionPerformed(evt);

			}

			private void menuSaveActionPerformed(java.awt.event.ActionEvent evt) {
				JFileChooser fileChooser = new JFileChooser();
				JFrame test = new JFrame();
				FileNameExtensionFilter jsonFilter = new FileNameExtensionFilter("*.json", "json");
				fileChooser.setFileFilter(jsonFilter);

				if (fileChooser.showSaveDialog(test) == JFileChooser.APPROVE_OPTION) {
					String file = fileChooser.getSelectedFile().getPath();
					if (!file.endsWith(".json"))
						file += ".json";
					try {
						controller.saveFile(new File(file).getAbsolutePath());
					} catch (IOException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
			}
		});

		mntmUndo.addActionListener(new java.awt.event.ActionListener() {

			@Override
			public void actionPerformed(java.awt.event.ActionEvent evt) {

				menuUndoActionPerformed(evt);

			}

			private void menuUndoActionPerformed(java.awt.event.ActionEvent evt) {
				try {
					controller.loadFile(controller.getUndoSave());
					canvas.repaint();
					ArrayList<HolonElement> tempList = new ArrayList<>();
					for (CpsObject cps : model.getObjectsOnCanvas()) {
						if (cps instanceof HolonObject) {
							for (HolonElement h : ((HolonObject) cps).getElements()) {
								tempList.add(h);
								unitGraph.repaintWithNewElement(tempList);
								unitGraph.fillArrayofValue();
								tempList.remove(0);
							}
						} else if (cps instanceof HolonSwitch) {
							unitGraph.repaintWithNewSwitch((HolonSwitch) cps);
							unitGraph.fillArrayofBooleans();
						}
					}
					unitGraph.empty();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}

		});

		mntmRedo.addActionListener(new java.awt.event.ActionListener() {

			@Override
			public void actionPerformed(java.awt.event.ActionEvent evt) {

				menuRedoActionPerformed(evt);

			}

			private void menuRedoActionPerformed(java.awt.event.ActionEvent evt) {
				try {
					controller.loadFile(controller.getRedoSave());
					canvas.repaint();
					ArrayList<HolonElement> tempList = new ArrayList<>();
					for (CpsObject cps : model.getObjectsOnCanvas()) {
						if (cps instanceof HolonObject) {
							for (HolonElement h : ((HolonObject) cps).getElements()) {
								tempList.add(h);
								unitGraph.repaintWithNewElement(tempList);
								unitGraph.fillArrayofValue();
								tempList.remove(0);
							}
						} else if (cps instanceof HolonSwitch) {
							unitGraph.repaintWithNewSwitch((HolonSwitch) cps);
							unitGraph.fillArrayofBooleans();
						}
					}
					unitGraph.empty();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}

		});

		mntmSetFolder.addActionListener(new java.awt.event.ActionListener() {

			@Override
			public void actionPerformed(java.awt.event.ActionEvent evt) {

				menuSetFolderActionPerformed(evt);

			}

			private void menuSetFolderActionPerformed(java.awt.event.ActionEvent evt) {
				JFileChooser fileChooser = new JFileChooser();
				JFrame test = new JFrame();
				fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
				fileChooser.setAcceptAllFileFilterUsed(false);

				if (fileChooser.showOpenDialog(test) == JFileChooser.APPROVE_OPTION) {
					File[] files = fileChooser.getSelectedFile().listFiles();
					for (int i = 0; i < files.length; i++) {
						if (files[i].toString().endsWith(".java") || files[i].toString().endsWith(".class")) {
							comboBoxAlgo.addItem(files[i]);
						}
					}
				}
			}

		});

		timePanel = new TimePanel(model, controller);
		timePanel.setBorder(null);
		((JSlider) (timePanel.getComponent(1))).addChangeListener(new ChangeListener() {

			@Override
			public void stateChanged(ChangeEvent e) {
				int i = model.getCurIteration();
				controller.calculateStateForTimeStep(i);
				unitGraph.repaint();
			}
		});
		splitPane.setRightComponent(splitPane_1);
		splitPane.setDividerLocation(200);
		splitPane_1.setDividerLocation(500);

		splitPane.setLeftComponent(scrollPane_1);
		splitPane_1.setLeftComponent(tabbedPane);
		splitPane_1.setRightComponent(split_HolonEl_Pro);
		split_HolonEl_Pro.setDividerLocation(400);
		split_HolonEl_Pro.setTopComponent(split_Graph_HolonEl);
		split_HolonEl_Pro.setBottomComponent(scrollProperties);
		split_Graph_HolonEl.setDividerLocation(150);
		split_Graph_HolonEl.setTopComponent(scrollGraph);
		split_Graph_HolonEl.setBottomComponent(scrollElements);

		tabbedPane.setBorder(null);
		scrollProperties.setBorder(null);
		scrollGraph.setBorder(null);
		scrollElements.setBorder(null);
		splitPane.setBorder(null);
		splitPane_1.setBorder(null);
		split_HolonEl_Pro.setBorder(null);
		split_Graph_HolonEl.setBorder(null);
		SimulationPane.setBorder(null);
		panel_HolonEl.setBorder(null);

		tableHolonElementScrollPane.setBorder(null);

		frmCyberPhysical.getContentPane().add(timePanel, BorderLayout.SOUTH);

		simulationSpeedField.setText(Integer.toString(timePanel.getTimerSpeed()));
		btnApply.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				int speed = Integer.parseInt(simulationSpeedField.getText());
				timePanel.setTimerSpeed(speed);
				mnSimulationSpeed.setPopupMenuVisible(false);
			}
		});

		mnSimulationSpeed.add(btnApply);
		menuBar.add(comboBoxAlgo);
	}

	/*
	 * adds a specific object type to selected Category also handles input
	 * windows and illegal inputs
	 */
	public void addObjectAction(String objType, DefaultMutableTreeNode selectedNode) {
		if (selectedNode == null) {
			JOptionPane.showMessageDialog(new JFrame(),
					"Please select a Category first before adding " + objType + ".");
		}
		// if selected node is a directory for Categories
		else {
			if (selectedNode.getLevel() == 1) {
				String objname = JOptionPane.showInputDialog("Please enter a Name for the " + objType);
				Category cat = controller.searchCategory(selectedNode.getUserObject().toString());

				if (objname.length() != 0) {
					switch (objType) {

					case "Switch":
						controller.addSwitch(cat, objname);
						break;

					case "Transformer":
						controller.addTransformer(cat, objname);
						break;
					}
				}
			} else {
				JOptionPane.showMessageDialog(new JFrame(),
						"Objects can not be added to Objects. Please select a Category.");
			}
		}
	}

	/**
	 * reloads the Categories from Model
	 */
	public void updateCategories(final ArrayList<Category> categories) {
		tree.setModel(new DefaultTreeModel(new DefaultMutableTreeNode("Categories") {
			{
				DefaultMutableTreeNode node_1;
				for (Category c : categories) {
					node_1 = new DefaultMutableTreeNode(c.getName());

					// kann eventuell umgeändert werden
					for (CpsObject obj : c.getObjects()) {
						node_1.add(new DefaultMutableTreeNode(obj.getObjName()));
					}
					add(node_1);
				}

			}
		}));
	}

	/**
	 * 
	 */
	public void onChange(ArrayList<Category> categories) {
		DefaultTreeModel model = (DefaultTreeModel) tree.getModel();
		updateCategories(categories);
		model.reload();
	}

	/**
	 * 
	 * @return
	 */
	public JFrame getFrmCyberPhysical() {
		return frmCyberPhysical;
	}

	/**
	 * Getter for selected CpsObject
	 * 
	 * @return selected CpsObject
	 */
	public CpsObject getActualCps() {
		int tempID = model.getSelectedObjectID();
		CpsObject tempCps = controller.searchByID(tempID);
		return tempCps;
	}

	/**
	 * Search for actual selected HolonElement
	 * 
	 * @param obj
	 *            selected HolonObject
	 * @param yValue
	 *            Y-Coord in the HolonElementsTable
	 * @param toMultiHash
	 *            0 means no MultiSelection, 1 means MultiSelection without
	 *            Control, 2 means MultiSelection with Control
	 * @return the selected HolonElement
	 */
	public HolonElement getActualHolonElement(HolonObject obj, int yValue, int toMultiHash) {
		final int yTemp = (int) Math.floor(yValue / 16);
		int rowsTotal = 0;
		if (obj == null) {
			rowsTotal = tableModelHolonElementMulti.getRowCount();
		} else {
			rowsTotal = tableModelHolonElementSingle.getRowCount();
		}
		HolonObject obtTemp = null;
		HolonElement toReturnEle = null;
		int id = 0;
		if (rowsTotal != 0 && rowsTotal > yTemp) {
			if (obj == null) {
				String tempStringObj = tableModelHolonElementMulti.getValueAt(yTemp, 0).toString();
				int idTempObj = Integer.parseInt(tempStringObj.split(", ")[1]);
				obtTemp = (HolonObject) controller.searchByID(idTempObj);
				id = Integer.parseInt(tableModelHolonElementMulti.getValueAt(yTemp, 1).toString());
				ArrayList<HolonElement> eleTemp = new ArrayList<HolonElement>();
				if (eleToDelete.containsKey(idTempObj) && toMultiHash == 2) {
					eleTemp = eleToDelete.get(idTempObj);
					if (!eleTemp.contains(obtTemp.searchElementById(id))) {
						eleTemp.add(obtTemp.searchElementById(id));
						eleToDelete.replace(idTempObj, eleTemp);

					}
				} else if (toMultiHash == 2) {
					eleTemp.add(obtTemp.searchElementById(id));
					eleToDelete.put(idTempObj, eleTemp);
				} else if (toMultiHash == 1) {
					eleToDelete = new HashMap<Integer, ArrayList<HolonElement>>();
					eleTemp.add(obtTemp.searchElementById(id));
					eleToDelete.put(idTempObj, eleTemp);
				} else if (toMultiHash == 0) {
					toReturnEle = obtTemp.searchElementById(id);
				}
			} else {
				eleToDelete = new HashMap<Integer, ArrayList<HolonElement>>();
				id = Integer.parseInt(tableModelHolonElementSingle.getValueAt(yTemp, 0).toString());
				toReturnEle = obj.searchElementById(id);
			}
			model.setSelectedHolonElement(toReturnEle);
			return toReturnEle;
		} else {
			eleToDelete = new HashMap<Integer, ArrayList<HolonElement>>();
			model.setSelectedHolonElement(null);
			return null;
		}
	}

	public HolonObject getHolonObj(int yValue) {
		final int yTemp = (int) Math.floor(yValue / 16);
		HolonObject obtTemp = null;
		String temp = tableModelHolonElementMulti.getValueAt(yTemp, 0).toString();
		int idTemp = Integer.parseInt(temp.split(", ")[1]);
		obtTemp = (HolonObject) controller.searchByID(idTemp);
		return obtTemp;
	}

	/**
	 * Update the HolonElement Table, that means erase all rows and add the new
	 * rows with new data
	 */
	public void refreshTableHolonElement() {
		// Update of the Information about the HolonElements - only for
		// HolonObjects

		if (model.getSelectedCpsObjects().size() > 1) {
			deleteRows(tableModelHolonElementMulti);
			fillElementTable(model.getSelectedCpsObjects());
			tableModelHolonElementMulti.fireTableDataChanged();
		} else if (model.getSelectedCpsObjects().size() == 1) {
			deleteRows(tableModelHolonElementSingle);
			fillElementTable(model.getSelectedCpsObjects());
			tableModelHolonElementSingle.fireTableDataChanged();
		}
	}

	/**
	 * Erase all information of the HolonElement Model
	 */
	public void deleteRows(PropertyTable t) {
		if (t.getRowCount() > 0) {
			for (int i = t.getRowCount() - 1; i > -1; i--) {
				t.removeRow(i);
			}
		}
	}

	/**
	 * Add the Information of the given ArrayList in the HolonElement Model as
	 * Name,Energy and Amount
	 * 
	 * @param elements
	 *            ArrayList to be displayed
	 */
	public void fillElementTable(ArrayList<CpsObject> objects) {
		if (objects.size() > 1) {
			for (CpsObject o : objects) {
				if (o instanceof HolonObject) {
					for (HolonElement he : ((HolonObject) o).getElements()) {
						Object[] temp = { o.getName() + ", " + o.getID(), he.getId(), he.getEleName(), he.getEnergy(),
								he.getAmount(), he.getActive() };
						tableModelHolonElementMulti.addRow(temp);
					}
				}
			}
		} else if (objects.size() == 1) {
			CpsObject o = objects.get(0);
			if (o instanceof HolonObject) {
				for (HolonElement he : ((HolonObject) o).getElements()) {
					Object[] temp = { he.getId(), he.getEleName(), he.getEnergy(), he.getAmount(), he.getActive() };
					tableModelHolonElementSingle.addRow(temp);
				}
			}
		}
	}

	/**
	 * Update the information concerning properties of the selected CpsObject
	 */
	public void refreshTableProperties() {
		if (model.getSelectedCpsObjects().size() == 1) {
			CpsObject tempCps = getActualCps();
			if (tempCps != null && tempCps.getClass() == HolonObject.class) {
				tableModelProperties.removeRow(2);
				Object[] tempEnergy = { "Total Energy", ((HolonObject) tempCps).getCurrentEnergy() };
				tableModelProperties.insertRow(2, tempEnergy);
			}
		}
	}

	private static void addPopup(Component component, final JPopupMenu popup) {
		component.addMouseListener(new MouseAdapter() {
			public void mousePressed(MouseEvent e) {
				if (e.isPopupTrigger()) {
					showMenu(e);
				}
			}

			public void mouseReleased(MouseEvent e) {
				if (e.isPopupTrigger()) {
					showMenu(e);
				}
			}

			private void showMenu(MouseEvent e) {
				popup.show(e.getComponent(), e.getX(), e.getY());
			}

		});
	}

}