nullpointer exception problem/simulator problem when resized

src/tec/letsgoing/ardublock/simulator/Simulator.java

@@ -104,7 +104,7 @@ public class Simulator implements Runnable, ActionListener{
 	}
 
 	/**
-	 * Startet den Simulation<br>
+	 * Startet die Simulation<br>
 	 * Wird durch den Play-Button gestartet.
 	 */
 	public void startSimu() {
@@ -179,6 +179,42 @@ public class Simulator implements Runnable, ActionListener{
 		for (SimCodeFunction function : functionsCode) {
 			arduino.addFunction(function);
 		}
+		
+		startSimu();
+		return true;
+	}
+	
+	
+	public boolean reloadGUI(GUI currentGUI) {
+		
+		if (simuThread instanceof Thread) {
+			stopSimu();
+			try {
+				simuThread.join();
+			} catch (InterruptedException e) {
+				// e.printStackTrace();
+				arduino.errorAbort("Thread Überwachung gestört - Bitte Programm neustarten");
+				return false;
+			}
+		}
+		
+		
+		gui.stopThread();
+		
+		this.gui = currentGUI;
+		
+		arduino = new Arduino(gui);
+		gui.connectPins(arduino);
+
+		guiThread = new Thread(gui);
+		guiThread.start();
+	
+		for (SimCodeFunction function : functionsCode) {
+			arduino.addFunction(function);
+		}
+		
+		
+		startSimu();
 		return true;
 	}
 
@@ -196,6 +232,7 @@ public class Simulator implements Runnable, ActionListener{
 			}
 		}
 		startSimu();
+		//System.out.println("reset");
 		return true;
 	}
 

src/tec/letsgoing/ardublock/simulator/view/GUI.java

@@ -53,8 +53,10 @@ public class GUI extends JFrame implements Runnable, ActionListener {
 	private Modul[] modules = new Modul[4];
 	private volatile boolean stopFlag = false;
 	private JTextArea serialLog = new JTextArea();
-	private static int xscale= 720;
-	private static int yscale= 720;
+	private static int xscale= 1500;
+	private static int yscale= 1000;
+	private JPanel modulPanel;
+	private Container mainPane;
 
 	/**
 	 * Konstruktor der Klasse GUI
@@ -63,14 +65,29 @@ public class GUI extends JFrame implements Runnable, ActionListener {
 	 */
 	public GUI(Simulator simu) {
 		super("ArduBlock Simulator");
-		
+		createGUI(simu);
 		this.addComponentListener(new ComponentListener() {
 			@Override
 			public void componentResized(ComponentEvent e) {
+				if(!(xscale == getWidth() && yscale == getHeight())) {
+				if(modulPanel.getWidth() <= modulPanel.getHeight()) {
 					xscale = getWidth();
 					yscale = getHeight();
+					
+				}
+				else {
+					xscale = getWidth();
+					yscale = getHeight();
+					
+				}
+				
+				
+				updating(simu);
+					
+					
 					System.out.println("xScale: " + xscale +  "\tyScale: " + yscale);
 				}
+			}
 
 			@Override
 			public void componentMoved(ComponentEvent e) {
@@ -92,6 +109,23 @@ public class GUI extends JFrame implements Runnable, ActionListener {
 			
 		});
 		
+	}
+	
+	
+	public void updating(Simulator simu) {
+		
+		
+		mainPane.removeAll();
+		createGUI(simu);
+		//simu.reloadGUI(this);
+		
+		
+		
+	}
+	
+	
+	public void createGUI(Simulator simu) {	
+	
 		// Konstruktor der Module
 		modules[0] = new RGB(new ImageIcon(getToolkit()
 				.getImage(GUI.class.getResource("/tec/letsgoing/ardublock/simulator/img/PM31_RGB_LED.png"))));
@@ -114,10 +148,10 @@ public class GUI extends JFrame implements Runnable, ActionListener {
 		this.setResizable(true); //TODO Muss in true ge�ndert werden wenn skalierbar
 		
 		
-		Container mainPane = this.getContentPane();
+		mainPane = this.getContentPane();
 
 		// Panel welches alle Module sowie die Verdrahtung enth�lt.
-		JPanel modulPanel = new JPanel(new BorderLayout()) {
+		modulPanel = new JPanel(new BorderLayout()) {
 			private static final long serialVersionUID = 1L;
 
 			@Override
@@ -137,12 +171,12 @@ public class GUI extends JFrame implements Runnable, ActionListener {
 		//Panel der Buttons auf der rechten Seite wird ausgeblendet
 		//mainPane.add(createControlPanel(simu), BorderLayout.LINE_END);
 		mainPane.add(createSerialLog(), BorderLayout.PAGE_END);
-		this.pack();
-		// this.setLocation(-1300, 0); //M�glichkeit die Renderingposition festzulegen
+		this.setSize(xscale, yscale);
+		//this.pack();
+		// this.setLocation(-1300, 0); //Mglichkeit die Renderingposition festzulegen
 		this.setVisible(true);
 		
 		
-
 	}
 
 	/**