Test

src/kommunikation/Start.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation;
+
+import javax.swing.JOptionPane;
+import kommunikation.controller.ConnectController;
+import kommunikation.controller.GrafikController;
+import kommunikation.controller.ReceiveAdapter;
+import kommunikation.controller.SendController;
+import kommunikation.transmitter.BilderKom;
+import kommunikation.view.ViewChat;
+
+
+/**
+ * Builder Class
+ * @author Alexander_Christoph
+ */
+public class Start
+{
+  public Start()
+  {
+    Object[] options = {"Client","Server"};
+    int selected = JOptionPane.showOptionDialog(null,"Wollen Sie Client oder Server sein","Konfiguration",JOptionPane.DEFAULT_OPTION,JOptionPane.QUESTION_MESSAGE,null, options, options[0]);
+    
+    if(selected < 0)
+    {
+      JOptionPane.showMessageDialog(null, "Sie müssen entweder Client oder Server sein. Bitte starten Sie das Programm erneut und wählen eine Option","Fehler", JOptionPane.ERROR_MESSAGE);
+    }
+    else
+    {
+      ViewChat view = new ViewChat();
+      BilderKom model = new BilderKom(selected);
+      model.registerEvents();
+
+      if(selected == 1)
+      {
+        view.setTitle("Server");
+      }
+      
+      view.getGrafikViewChat().setModel(model.getModel());
+      GrafikController gcontrol= new GrafikController(view.getGrafikViewChat(),model);
+      gcontrol.registerEvents();
+      
+      ConnectController control = new ConnectController(view,model);
+      control.registerEvents();
+
+      SendController send = new SendController(view,model);
+      send.registerEvents();
+
+      ReceiveAdapter adapter = new ReceiveAdapter(view,model);
+      adapter.registerEvents();
+
+      view.setVisible(true);
+    }
+  }
+
+  /**
+   * @param args the command line arguments
+   */
+  public static void main(String[] args) 
+  {
+    new Start();
+  }
+}

src/kommunikation/controller/ConnectController.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation.controller;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import javax.swing.JOptionPane;
+import kommunikation.transmitter.BilderKom;
+import kommunikation.transmitter.Transmitter;
+import kommunikation.view.ViewChat;
+
+/**
+ *
+ * @author Alexander_Christoph
+ */
+public class ConnectController implements ActionListener
+{
+  ViewChat view;
+  BilderKom model;
+  
+  
+  public ConnectController(ViewChat view, BilderKom model) 
+  {
+    this.view = view;
+    this.model = model;
+  }
+  
+  public void registerEvents()
+  {
+    view.getBtnConnect().addActionListener(this);
+  }
+
+  @Override
+  public void actionPerformed(ActionEvent arg0)
+  {
+     try
+    {
+      String ip = view.getTfIp().getText();
+      int port = Integer.parseInt(view.getTfPort().getText());
+      model.setIpPort(ip, port);
+    }
+    catch(NumberFormatException ex)
+    {
+      JOptionPane.showMessageDialog(null, "Bitte geben sie eine Zahl ein","Fehler", JOptionPane.ERROR_MESSAGE);
+    }
+    view.getTaChat().append("Verbinde\n");
+    model.start();
+  }
+}

src/kommunikation/controller/GrafikController.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation.controller;
+
+import java.awt.Point;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
+import java.awt.event.MouseMotionListener;
+import kommunikation.transmitter.BilderKom;
+import kommunikation.transmitter.Figur;
+import kommunikation.view.GrafikView;
+
+
+/**
+ *
+ * @author le
+ */
+public class GrafikController implements MouseMotionListener, MouseListener
+{
+  private GrafikView view;
+  private BilderKom model;
+  private Figur f;
+  private Boolean neu;
+  private Boolean ersterPunkt;
+  private Point zwischenSpeicher;
+  
+  public GrafikController(GrafikView view, BilderKom model)
+  {
+    this.view = view;
+    this.model = model;
+    neu = true;
+    zwischenSpeicher = new Point();
+    ersterPunkt = true;
+  }
+
+  public void registerEvents()
+  {
+    view.addMouseMotionListener(this);
+    view.addMouseListener(this);
+  }
+  
+  @Override
+  public void mouseDragged(MouseEvent evt)
+  {
+    Point p = evt.getPoint();
+    view.drawPoint(p);
+    f.addPoint(p);
+    if(!ersterPunkt)
+    {
+      view.line(zwischenSpeicher, p);
+    }
+    zwischenSpeicher = p;
+    ersterPunkt = false;
+  }
+
+  @Override
+  public void mouseMoved(MouseEvent e)
+  {
+  }
+
+  @Override
+  public void mouseClicked(MouseEvent e)
+  {
+    
+  }
+
+  @Override
+  public void mousePressed(MouseEvent e)
+  {
+    if(neu)
+    {
+      f = new Figur();
+      neu = false;
+    }
+  }
+
+  @Override
+  public void mouseReleased(MouseEvent evt)
+  {
+    if (evt.getButton() == MouseEvent.BUTTON3)
+    {
+      view.doPrint();
+    }
+    
+    model.addFigur(f);
+    model.senden(f);
+    neu = true;
+    ersterPunkt = true;
+  }
+
+  @Override
+  public void mouseEntered(MouseEvent e)
+  {
+  }
+
+  @Override
+  public void mouseExited(MouseEvent e)
+  {
+  }
+}

src/kommunikation/controller/ReceiveAdapter.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation.controller;
+
+import java.util.Observable;
+import java.util.Observer;
+import java.util.logging.Logger;
+import kommunikation.transmitter.BilderKom;
+import kommunikation.transmitter.Figur;
+import kommunikation.view.ViewChat;
+
+/**
+ *
+ * @author Alexander_Christoph
+ */
+public class ReceiveAdapter implements Observer
+{
+  ViewChat view;
+  BilderKom model;
+  Logger lg =Logger.getLogger("observer");
+  
+  public ReceiveAdapter(ViewChat view, BilderKom model)
+  {
+    this.view = view;
+    this.model = model;
+  }
+  
+  public void registerEvents()
+  {
+    model.addObserver(this);
+  }
+  
+  @Override
+  public void update(Observable arg0, Object arg1)
+  {
+    lg.info("in update");
+    Object obj;
+    obj = model.getNachricht(); 
+    if(obj instanceof String)
+    {
+      
+      String text = obj.toString() + "\n";
+      view.getTaChat().append("Freund: " + text);
+    }
+    if(obj instanceof Figur)
+    {
+      model.addFigurFremd((Figur)obj); //muss eventuell noch gezeichnet werden nachdem es hinzugefügt wurde !!!
+      view.repaint();
+    }
+  }
+   
+}
+
+ 

src/kommunikation/controller/SendController.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation.controller;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import kommunikation.transmitter.BilderKom;
+import kommunikation.view.ViewChat;
+
+/**
+ *
+ * @author Alexander_Christoph
+ */
+public class SendController implements ActionListener
+{
+  ViewChat view;
+  BilderKom model;
+  
+  public SendController(ViewChat view, BilderKom model)
+  {
+    this.view = view;
+    this.model = model;
+  }
+  
+  public void registerEvents()
+  {
+    view.getTfMessage().addActionListener(this);
+  }
+
+  @Override
+  public void actionPerformed(ActionEvent arg0)
+  {
+    String text = view.getTfMessage().getText();
+    view.getTaChat().append("Ich: "+ text+"\n");
+    model.senden(text);
+    view.getTfMessage().setText("");
+  }
+  
+}

src/kommunikation/logger/MyFormatter.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation.logger;
+
+import java.util.logging.LogRecord;
+import java.util.logging.SimpleFormatter;
+
+/**
+ *
+ * @author nobody
+ */
+public class MyFormatter extends SimpleFormatter
+{
+  public MyFormatter()
+  {
+
+  }
+  
+  @Override
+  public String format(LogRecord record)
+  {
+    String str = "| " + record.getMillis() + " | " + record.getLevel()+ " | " + record.getSourceClassName() + " | " + record.getMessage() + " |\n";
+    
+    return str;
+  }
+}

src/kommunikation/logger/OhmLogger.java

+package kommunikation.logger;
+/**
+ *
+ * @author nobody
+ */
+
+import java.io.File;
+import java.io.IOException;
+import java.util.logging.ConsoleHandler;
+import java.util.logging.FileHandler;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class OhmLogger
+{
+  private static Logger lg = null;
+
+  public static Logger getLogger()
+  {
+    if (lg == null)
+    {
+      lg = Logger.getLogger("OhmLogger");
+      initLogger();
+    }
+
+    return lg;
+  }
+
+  private static void initLogger()
+  {
+    try
+    {
+      // Besser: Die Log-Datei über eine Properties-Dateieinstellbar machen
+      // Hier wird in das temporäre Verzeichnis desBetriebssytems geloggt.
+
+      String datei = System.getProperty("java.io.tmpdir") + File.separator + "log.txt";
+      FileHandler fh = new FileHandler(datei);
+      ConsoleHandler ch = new ConsoleHandler();
+      lg.setUseParentHandlers(false);
+
+      // Text-Ausgabe --> SimpleFormatter
+      // Standard = Default: XMLFormatter --> xml-Format
+      //fh.setFormatter(new SimpleFormatter());
+      lg.addHandler(fh);
+
+      // besser eigener Formatter:
+      ch.setFormatter(new MyFormatter());
+
+      lg.addHandler(ch);
+
+      lg.setLevel(Level.ALL);
+    }
+    catch (IOException ioex)
+    {
+      System.err.println(ioex);
+    }
+  }
+}

src/kommunikation/transmitter/BilderKom.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation.transmitter;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.List;
+import java.util.Observable;
+import java.util.Observer;
+import java.util.function.Supplier;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import kommunikation.logger.OhmLogger;
+
+/**
+ *
+ * @author nobody
+ */
+public class BilderKom extends Observable implements Observer
+{
+  protected static final Logger lg = OhmLogger.getLogger();
+  private GrafikModel grafik;
+  private Transmitter trans;
+  
+  public BilderKom(int modus )
+  {
+    trans = new Transmitter(modus);
+    grafik = new GrafikModel();
+  }
+  
+  public void registerEvents()
+  {
+    trans.addObserver(this);
+  }
+  
+  public GrafikModel getModel()
+  {
+    return grafik;
+  }
+  
+  public void start()
+  {
+    trans.start();
+  }
+  
+  public void setIpPort(String ip,int port)
+  {
+    trans.setIpPort(ip, port);
+  }
+  
+  public void senden(Object nachricht)
+  {
+    trans.senden(nachricht);
+  }
+  
+  public Object getNachricht()
+  {
+    return trans.getNachricht();
+  }
+  
+  public void addFigur(Figur f)
+  {
+    grafik.addFigur(f);
+  }
+  
+  public void addFigurFremd(Figur f)
+  {
+    grafik.addFigurFremd(f);
+  }
+  
+  public List<Figur> getFigur()
+  {
+    return grafik.getFigur();
+  }
+  
+  public void speichereFiguren(File datei)
+  {
+    try
+    {
+      grafik.speichereFiguren(datei);
+    }
+    catch (IOException ex)
+    {
+      Logger.getLogger(BilderKom.class.getName()).log(Level.SEVERE, null, ex);
+    }
+  }
+  
+  @SuppressWarnings("unchecked")
+  public void ladeFiguren(File dateiname)
+  {
+    try
+    {
+      grafik.ladeFiguren(dateiname);
+    }
+    catch (IOException | ClassNotFoundException ex)
+    {
+      lg.severe((Supplier<String>) ex);
+    }
+  }
+
+  @Override
+  public void update(Observable o, Object arg)
+  {
+    this.setChanged();
+    this.notifyObservers();
+  }
+   
+}

src/kommunikation/transmitter/Client.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation.transmitter;
+
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.net.Socket;
+
+
+/**
+ *
+ * @author Alexander_Christoph
+ */
+public class Client extends Kommunikationspartner
+{
+  
+  public Client()
+  {
+    this.ip = "127.0.0.0";
+    lg.info("Client erstellt");
+  }
+  
+  
+  @Override
+  public void verbinde()
+  {
+    try
+    {
+      Socket s = new Socket(ip, port); // Achtung: blockiert!
+      lg.info("Client: socket erstellt");
+      out = new ObjectOutputStream(s.getOutputStream());
+      in = new ObjectInputStream(s.getInputStream());
+      lg.info("Client: Stream initialisiert");
+    }
+    catch (IOException ex)
+    {
+      lg.severe(ex.toString());
+    }
+  }
+}

src/kommunikation/transmitter/Figur.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation.transmitter;
+
+import java.awt.Point;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ *
+ * @author nobody
+ */
+public class Figur implements Serializable
+{
+  private ArrayList<Point> punkte;
+  
+  public Figur()
+  {
+     punkte = new ArrayList<>();
+  }
+  
+  public void addPoint(Point p)
+  {
+    punkte.add(p);
+  }
+  
+  public List<Point> getPunkte()
+  {
+    return Collections.unmodifiableList(punkte);
+  }
+ 
+}

src/kommunikation/transmitter/GrafikModel.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation.transmitter;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Observable;
+import java.util.logging.Logger;
+import kommunikation.logger.OhmLogger;
+
+/**
+ *
+ * @author le
+ */
+public class GrafikModel extends Observable
+{
+  private ArrayList<Figur> figuren;
+  private ArrayList<Figur> figurenFremd;
+  private static final Logger lg = OhmLogger.getLogger();
+  
+  public GrafikModel()
+  {
+    figuren = new ArrayList<>();
+    figurenFremd = new ArrayList<>();
+  }
+  
+  public void addFigurFremd(Figur f)
+  {
+    figurenFremd.add(f);
+    lg.info("fremde Figur wurde hinzugefügt");
+  }
+  
+  
+  public void addFigur(Figur f)
+  {
+    figuren.add(f);
+    lg.info("Figur wurde hinzugefügt");
+  }
+
+  public List<Figur> getFigur()
+  {
+    return Collections.unmodifiableList(figuren);
+  }
+  
+  public List<Figur> getFigurFremd()
+  {
+    return Collections.unmodifiableList(figurenFremd);
+  }
+  
+  public void speichereFiguren(File datei) throws FileNotFoundException, IOException
+  {
+    FileOutputStream fos = new FileOutputStream(datei);
+    BufferedOutputStream bos = new BufferedOutputStream(fos);
+    ObjectOutputStream oos = new ObjectOutputStream(bos);
+    oos.writeObject(figuren);
+    oos.flush();
+    oos.close();
+  }
+  
+  public void ladeFiguren(File dateiname) throws FileNotFoundException, IOException, ClassNotFoundException
+  {
+    FileInputStream fis = new FileInputStream(dateiname);
+    BufferedInputStream buffin = new BufferedInputStream(fis);
+    ObjectInputStream ois = new ObjectInputStream(buffin);
+    figuren = (ArrayList<Figur>) ois.readObject();
+    ois.close();
+  }
+  
+}

src/kommunikation/transmitter/Kommunikationspartner.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation.transmitter;
+
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.logging.Logger;
+import kommunikation.logger.OhmLogger;
+
+
+
+/**
+ *
+ * @author Alexander_Christoph
+ */
+public abstract class Kommunikationspartner
+{
+  protected static final Logger lg = OhmLogger.getLogger();
+  protected int port;
+  protected String ip;
+  protected Object nachricht;
+  protected Figur figur;
+  protected ObjectInputStream in;
+  protected ObjectOutputStream out;
+  
+  public Kommunikationspartner()
+  {
+    port = 35000;
+    ip = "";
+  }
+  
+  public abstract void verbinde();
+  
+  public void senden(Object nachricht)
+  {
+    try
+    {
+      out.writeObject(nachricht);
+    }
+    catch (IOException ex)
+    {
+      lg.severe(ex.toString());
+    }
+    
+    lg.info("Grafik versendet");
+  }
+  
+  public void empfangen()
+  {
+    try
+    {
+      lg.info("Warte auf Nachricht ...");
+      
+      nachricht = in.readObject();
+      
+      lg.info("Nachricht empfangen");
+    }
+    catch (IOException | ClassNotFoundException ex)
+    {
+      lg.severe(ex.toString());
+    }
+    
+  }
+  
+  public Object getNachricht()
+  {
+    return nachricht;
+  }
+  
+  public void setPort(int port)
+  {
+    this.port = port;
+    lg.info("Port auf " + port + " gesetzt" );
+  }
+  
+  public void setIp(String ip)
+  {
+    this.ip = ip;
+    lg.info("Ip auf " + ip + " gesetzt" );
+  }
+}

src/kommunikation/transmitter/Server.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package kommunikation.transmitter;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.net.ServerSocket;
+import java.net.Socket;
+import static kommunikation.transmitter.Kommunikationspartner.lg;
+
+/**
+ *
+ * @author Alexander_Christoph
+ */
+public class Server extends Kommunikationspartner
+{
+  
+  public Server()
+  {
+    lg.info("Server erstellt");
+  }
+  
+  @Override
+  public void verbinde() 
+  {
+    try
+    {
+      ServerSocket sSocket = new ServerSocket(port);
+      lg.info("Server: Warte auf Verbindung ...");
+      Socket s = sSocket.accept(); 
+      lg.info("Server: Verbindung akzeptiert");
+      
+      out = new ObjectOutputStream(s.getOutputStream());
+      in = new ObjectInputStream(s.getInputStream());
+     
+    }
+    catch (IOException ex)
+    {
+      lg.severe(ex.toString());
+    }
+  }
+}

src/kommunikation/transmitter/Transmitter.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package kommunikation.transmitter;
+
+import java.util.Observable;
+import java.util.logging.Logger;
+import javax.swing.JOptionPane;
+import kommunikation.logger.OhmLogger;
+
+/**
+ *
+ * @author Alexander_Christoph
+ */
+public class Transmitter extends Observable implements Runnable
+{
+  protected static final Logger lg = OhmLogger.getLogger();
+  private Kommunikationspartner kom;
+  private Boolean verbindung;
+  private Thread thd;
+
+  public Transmitter(int modus)
+  {
+    if (modus == 0)
+    {
+      kom = new Client();
+    }
+
+    if (modus == 1)
+    {
+      kom = new Server();
+    }
+
+    verbindung = false;
+    thd = null;
+  }
+
+  public void start()
+  {
+    if (thd == null)
+    {
+      thd = new Thread(this);
+      thd.start();
+    }
+
+  }
+
+  @Override
+  public void run()
+  {
+    while (true)
+    {
+      if (!verbindung)
+      {
+        kom.verbinde();
+        verbindung = true;
+      }
+      synchronized (this)
+      {
+        kom.empfangen();
+      }
+      lg.info("empfangen");
+      this.setChanged();
+      this.notifyObservers();
+    }
+  }
+
+  public void setIpPort(String ip, int port)
+  {
+    kom.setPort(port);
+    kom.setIp(ip);
+  }
+
+  public void senden(Object nachricht)
+  {
+    if (verbindung)
+    {
+      kom.senden(nachricht);
+    }
+    else
+    {
+      JOptionPane.showMessageDialog(null, "Bauen Sie zuerst eine Verbindung auf", "Keine Verbindung", JOptionPane.INFORMATION_MESSAGE);
+    }
+  }
+
+  public Object getNachricht()
+  {
+    return kom.getNachricht();
+  }
+
+}

src/kommunikation/view/GrafikView.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package kommunikation.view;
+
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Point;
+import java.awt.geom.Line2D;
+import java.awt.geom.Rectangle2D;
+import java.awt.print.PageFormat;
+import java.awt.print.Printable;
+import java.awt.print.PrinterException;
+import java.awt.print.PrinterJob;
+import java.util.logging.Logger;
+import javax.print.attribute.HashPrintRequestAttributeSet;
+import javax.print.attribute.standard.DialogTypeSelection;
+import javax.swing.JComponent;
+import javax.swing.JOptionPane;
+import kommunikation.transmitter.Figur;
+import kommunikation.transmitter.GrafikModel;
+
+
+/**
+ *
+ * @author le
+ */
+public class GrafikView extends JComponent implements Printable
+{
+  private final static Dimension EINS = new Dimension(1, 1);
+  private final static Logger lg = Logger.getLogger("mvcGrafik");
+  private Rectangle2D.Float pixel;
+  private Line2D.Float linie;
+  private GrafikModel model;
+
+  public GrafikView()
+  {
+    pixel = new Rectangle2D.Float();
+    linie = new Line2D.Float();
+    this.setBackground(Color.WHITE);
+  }
+
+  public void setModel(GrafikModel model)
+  {
+    this.model = model;
+  }
+
+  public void drawPoint(Point p)
+  {
+    Graphics2D g2 = (Graphics2D) this.getGraphics();
+    pixel.setFrame(p, EINS);
+    g2.draw(pixel);
+    g2.dispose(); // VERY, VERY WICHTIG
+  }
+
+  @Override
+  public void paintComponent(Graphics g)
+  {
+    if (model == null)
+    {
+      lg.severe("keine Referenz auf Model vorhanden");
+      return;
+    }
+    super.paintComponent(g);
+    Graphics2D g2 = (Graphics2D) g;
+    
+    Point zwischenSpeicher = new Point();
+    for (Figur f : model.getFigur())
+    {
+      g2.setColor(Color.BLACK);
+      Boolean first = true;
+      for (Point p : f.getPunkte())
+      {
+        pixel.setFrame(p, EINS);
+        g2.draw(pixel);
+        if(!first)
+        {
+          linie.setLine(zwischenSpeicher, p);
+          g2.draw(linie);
+        }
+        zwischenSpeicher = p;
+        first = false;
+      }
+    }
+    for (Figur f : model.getFigurFremd())
+    {
+      Boolean first = true;
+      g2.setColor(Color.RED);
+      for (Point p : f.getPunkte())
+      {
+        pixel.setFrame(p, EINS);
+        g2.draw(pixel);
+        if(!first)
+        {
+          linie.setLine(zwischenSpeicher, p);
+          g2.draw(linie);
+        }
+        zwischenSpeicher = p;
+        first = false;
+      }
+    }
+  }
+  
+  public void line(Point p1, Point p2)
+  {
+    Graphics2D g2 = (Graphics2D) this.getGraphics();
+    Line2D.Float lin = new Line2D.Float(p1, p2);
+    g2.draw(lin);
+    g2.dispose();
+  }
+  
+  public void doPrint()
+  {
+    HashPrintRequestAttributeSet printSet = 
+     new HashPrintRequestAttributeSet();
+    printSet.add(DialogTypeSelection.NATIVE);
+    PrinterJob pj = PrinterJob.getPrinterJob();
+    pj.setPrintable(this);
+    // Druckdialog
+    if (pj.printDialog(printSet))
+    {
+      try
+      {
+        pj.print(printSet);
+      }
+      catch (Exception ex)
+      {
+        JOptionPane.showMessageDialog(this, ex.toString());
+      }
+    }
+  }
+
+  @Override
+  public int print(Graphics gp, PageFormat pf, int pageIndex) throws PrinterException
+  {
+    Graphics2D g2p = (Graphics2D) gp;
+    Logger lg = Logger.getLogger("mvcGrafik");
+    lg.info("pgIndex: " + Integer.toString(pageIndex));
+    if (pageIndex == 0)
+    {
+      g2p.translate(pf.getImageableX(), pf.getImageableY());
+      g2p.scale(pf.getImageableWidth()/this.getWidth(), 
+                pf.getImageableHeight() / this.getHeight());
+      super.print(g2p);
+     
+      lg.info("Druck ist möglich");
+      return Printable.PAGE_EXISTS;
+    }
+    else
+    {
+      lg.info("Druck ist unmöglich");
+      return Printable.NO_SUCH_PAGE;
+    }
+  }
+
+}

src/kommunikation/view/ViewChat.form

+<?xml version="1.0" encoding="UTF-8" ?>
+
+<Form version="1.3" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JFrameFormInfo">
+  <Properties>
+    <Property name="defaultCloseOperation" type="int" value="3"/>
+    <Property name="title" type="java.lang.String" value="Client"/>
+  </Properties>
+  <SyntheticProperties>
+    <SyntheticProperty name="formSize" type="java.awt.Dimension" value="-84,-19,0,5,115,114,0,18,106,97,118,97,46,97,119,116,46,68,105,109,101,110,115,105,111,110,65,-114,-39,-41,-84,95,68,20,2,0,2,73,0,6,104,101,105,103,104,116,73,0,5,119,105,100,116,104,120,112,0,0,2,119,0,0,3,37"/>
+    <SyntheticProperty name="formSizePolicy" type="int" value="0"/>
+    <SyntheticProperty name="generateSize" type="boolean" value="true"/>
+    <SyntheticProperty name="generateCenter" type="boolean" value="true"/>
+  </SyntheticProperties>
+  <AuxValues>
+    <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_autoSetComponentName" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_generateFQN" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_i18nAutoMode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>
+    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
+  </AuxValues>
+
+  <Layout class="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout"/>
+  <SubComponents>
+    <Component class="javax.swing.JTextField" name="tfMessage">
+      <Properties>
+        <Property name="text" type="java.lang.String" value="Nachricht"/>
+        <Property name="toolTipText" type="java.lang.String" value=""/>
+      </Properties>
+      <Constraints>
+        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout" value="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout$BorderConstraintsDescription">
+          <BorderConstraints direction="Last"/>
+        </Constraint>
+      </Constraints>
+    </Component>
+    <Container class="javax.swing.JPanel" name="pnlConnect">
+      <Constraints>
+        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout" value="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout$BorderConstraintsDescription">
+          <BorderConstraints direction="First"/>
+        </Constraint>
+      </Constraints>
+
+      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignFlowLayout"/>
+      <SubComponents>
+        <Component class="javax.swing.JLabel" name="lblPort">
+          <Properties>
+            <Property name="text" type="java.lang.String" value="PORT"/>
+          </Properties>
+        </Component>
+        <Component class="javax.swing.JTextField" name="tfPort">
+          <Properties>
+            <Property name="columns" type="int" value="6"/>
+            <Property name="text" type="java.lang.String" value="port"/>
+          </Properties>
+        </Component>
+        <Component class="javax.swing.JLabel" name="lblIp">
+          <Properties>
+            <Property name="text" type="java.lang.String" value="IP_ADRESSE"/>
+          </Properties>
+        </Component>
+        <Component class="javax.swing.JTextField" name="tfIp">
+          <Properties>
+            <Property name="columns" type="int" value="15"/>
+            <Property name="text" type="java.lang.String" value="ip-Adresse"/>
+          </Properties>
+        </Component>
+        <Component class="javax.swing.JButton" name="btnConnect">
+          <Properties>
+            <Property name="text" type="java.lang.String" value="Connect"/>
+          </Properties>
+        </Component>
+      </SubComponents>
+    </Container>
+    <Container class="javax.swing.JPanel" name="pnlChat">
+      <Constraints>
+        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout" value="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout$BorderConstraintsDescription">
+          <BorderConstraints direction="Center"/>
+        </Constraint>
+      </Constraints>
+
+      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridLayout">
+        <Property name="columns" type="int" value="2"/>
+        <Property name="rows" type="int" value="0"/>
+      </Layout>
+      <SubComponents>
+        <Container class="javax.swing.JScrollPane" name="jScrollPane2">
+          <AuxValues>
+            <AuxValue name="autoScrollPane" type="java.lang.Boolean" value="true"/>
+          </AuxValues>
+
+          <Layout class="org.netbeans.modules.form.compat2.layouts.support.JScrollPaneSupportLayout"/>
+          <SubComponents>
+            <Component class="javax.swing.JTextArea" name="taChat">
+              <Properties>
+                <Property name="columns" type="int" value="20"/>
+                <Property name="rows" type="int" value="5"/>
+              </Properties>
+            </Component>
+          </SubComponents>
+        </Container>
+        <Container class="kommunikation.view.GrafikView" name="grafikViewChat">
+
+          <Layout class="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout">
+            <Property name="useNullLayout" type="boolean" value="true"/>
+          </Layout>
+        </Container>
+      </SubComponents>
+    </Container>
+  </SubComponents>
+</Form>

src/kommunikation/view/ViewChat.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package kommunikation.view;
+
+/**
+ *
+ * @author Alexander_Christoph
+ */
+public class ViewChat extends javax.swing.JFrame
+{
+  /**
+   * @return the grafikViewChat
+   */
+  public kommunikation.view.GrafikView getGrafikViewChat()
+  {
+    return grafikViewChat;
+  }
+  /**
+   * @return the btnConnect
+   */
+  public javax.swing.JButton getBtnConnect()
+  {
+    return btnConnect;
+  }
+
+  /**
+   * @return the taChat
+   */
+  public javax.swing.JTextArea getTaChat()
+  {
+    return taChat;
+  }
+
+  /**
+   * @return the tfIp
+   */
+  public javax.swing.JTextField getTfIp()
+  {
+    return tfIp;
+  }
+
+  /**
+   * @return the tfMessage
+   */
+  public javax.swing.JTextField getTfMessage()
+  {
+    return tfMessage;
+  }
+
+  /**
+   * @return the tfPort
+   */
+  public javax.swing.JTextField getTfPort()
+  {
+    return tfPort;
+  }
+
+  /**
+   * Creates new form ViewServer
+   */
+  public ViewChat()
+  {
+    initComponents();
+  }
+
+  /**
+   * This method is called from within the constructor to initialize the form.
+   * WARNING: Do NOT modify this code. The content of this method is always
+   * regenerated by the Form Editor.
+   */
+  @SuppressWarnings("unchecked")
+  // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
+  private void initComponents()
+  {
+
+    tfMessage = new javax.swing.JTextField();
+    pnlConnect = new javax.swing.JPanel();
+    lblPort = new javax.swing.JLabel();
+    tfPort = new javax.swing.JTextField();
+    lblIp = new javax.swing.JLabel();
+    tfIp = new javax.swing.JTextField();
+    btnConnect = new javax.swing.JButton();
+    pnlChat = new javax.swing.JPanel();
+    jScrollPane2 = new javax.swing.JScrollPane();
+    taChat = new javax.swing.JTextArea();
+    grafikViewChat = new kommunikation.view.GrafikView();
+
+    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
+    setTitle("Client");
+
+    tfMessage.setText("Nachricht");
+    tfMessage.setToolTipText("");
+    getContentPane().add(tfMessage, java.awt.BorderLayout.PAGE_END);
+
+    lblPort.setText("PORT");
+    pnlConnect.add(lblPort);
+
+    tfPort.setColumns(6);
+    tfPort.setText("port");
+    pnlConnect.add(tfPort);
+
+    lblIp.setText("IP_ADRESSE");
+    pnlConnect.add(lblIp);
+
+    tfIp.setColumns(15);
+    tfIp.setText("ip-Adresse");
+    pnlConnect.add(tfIp);
+
+    btnConnect.setText("Connect");
+    pnlConnect.add(btnConnect);
+
+    getContentPane().add(pnlConnect, java.awt.BorderLayout.PAGE_START);
+
+    pnlChat.setLayout(new java.awt.GridLayout(0, 2));
+
+    taChat.setColumns(20);
+    taChat.setRows(5);
+    jScrollPane2.setViewportView(taChat);
+
+    pnlChat.add(jScrollPane2);
+    pnlChat.add(grafikViewChat);
+
+    getContentPane().add(pnlChat, java.awt.BorderLayout.CENTER);
+
+    setSize(new java.awt.Dimension(805, 631));
+    setLocationRelativeTo(null);
+  }// </editor-fold>//GEN-END:initComponents
+
+  /**
+   * @param args the command line arguments
+   */
+  public static void main(String args[])
+  {
+    /* Set the Nimbus look and feel */
+    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
+    /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
+         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
+     */
+    try
+    {
+      for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels())
+      {
+        if ("Nimbus".equals(info.getName()))
+        {
+          javax.swing.UIManager.setLookAndFeel(info.getClassName());
+          break;
+        }
+      }
+    }
+    catch (ClassNotFoundException ex)
+    {
+      java.util.logging.Logger.getLogger(ViewChat.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+    }
+    catch (InstantiationException ex)
+    {
+      java.util.logging.Logger.getLogger(ViewChat.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+    }
+    catch (IllegalAccessException ex)
+    {
+      java.util.logging.Logger.getLogger(ViewChat.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+    }
+    catch (javax.swing.UnsupportedLookAndFeelException ex)
+    {
+      java.util.logging.Logger.getLogger(ViewChat.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+    }
+    //</editor-fold>
+    //</editor-fold>
+    //</editor-fold>
+    //</editor-fold>
+
+    /* Create and display the form */
+    java.awt.EventQueue.invokeLater(new Runnable()
+    {
+      public void run()
+      {
+        new ViewChat().setVisible(true);
+      }
+    });
+  }
+
+  // Variables declaration - do not modify//GEN-BEGIN:variables
+  private javax.swing.JButton btnConnect;
+  private kommunikation.view.GrafikView grafikViewChat;
+  private javax.swing.JScrollPane jScrollPane2;
+  private javax.swing.JLabel lblIp;
+  private javax.swing.JLabel lblPort;
+  private javax.swing.JPanel pnlChat;
+  private javax.swing.JPanel pnlConnect;
+  private javax.swing.JTextArea taChat;
+  private javax.swing.JTextField tfIp;
+  private javax.swing.JTextField tfMessage;
+  private javax.swing.JTextField tfPort;
+  // End of variables declaration//GEN-END:variables
+}