init

.gitignore

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+/build/
+/nbproject/private/
+*.xml
+*.properties
+*.mf
+/dist/
+/wurfel/nbproject/private/
+/wurfel/dist/
+/wurfel/build/

src/mvcgrafik/Start.java

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+/*
+ * 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 mvcgrafik;
+
+import javax.swing.JFrame;
+import javax.swing.WindowConstants;
+import mvcgrafik.controller.GrafikController;
+import mvcgrafik.model.GrafikModel;
+import mvcgrafik.view.GrafikView;
+
+/**
+ * Builder Class
+ * @author le
+ */
+public class Start
+{
+  public Start()
+  {
+    JFrame frm = new JFrame();
+    frm.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+    GrafikView view = new GrafikView();
+    GrafikModel model = new GrafikModel();
+    view.setModel(model);
+    GrafikController controller = new GrafikController(view, model);
+    controller.registerEvents();
+    frm.setContentPane(view);
+    frm.setSize(800, 600);
+    frm.setVisible(true);
+
+  }
+
+  /**
+   * @param args the command line arguments
+   */
+  public static void main(String[] args) 
+  {
+    new Start();
+  }
+}

src/mvcgrafik/controller/GrafikController.java

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+/*
+ * 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 mvcgrafik.controller;
+
+import java.awt.Point;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
+import java.awt.event.MouseMotionListener;
+import mvcgrafik.model.GrafikModel;
+import mvcgrafik.view.GrafikView;
+
+/**
+ *
+ * @author le
+ */
+public class GrafikController implements MouseMotionListener, MouseListener
+{
+  private GrafikView view;
+  private GrafikModel model;
+  
+  public GrafikController(GrafikView view, GrafikModel model)
+  {
+    this.view = view;
+    this.model = model;
+  }
+
+  public void registerEvents()
+  {
+    view.addMouseMotionListener(this);
+    view.addMouseListener(this);
+  }
+  
+  @Override
+  public void mouseDragged(MouseEvent evt)
+  {
+    Point p = evt.getPoint();
+    view.drawPoint(p);
+    model.addPoint(p);
+  }
+
+  @Override
+  public void mouseMoved(MouseEvent e)
+  {
+  }
+
+  @Override
+  public void mouseClicked(MouseEvent e)
+  {
+  }
+
+  @Override
+  public void mousePressed(MouseEvent e)
+  {
+  }
+
+  @Override
+  public void mouseReleased(MouseEvent evt)
+  {
+    if (evt.getButton() == MouseEvent.BUTTON3)
+    {
+      view.doPrint();
+    }
+  }
+
+  @Override
+  public void mouseEntered(MouseEvent e)
+  {
+  }
+
+  @Override
+  public void mouseExited(MouseEvent e)
+  {
+  }
+}

src/mvcgrafik/model/GrafikModel.java

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+/*
+ * 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 mvcgrafik.model;
+
+import java.awt.Point;
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+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;
+
+/**
+ *
+ * @author le
+ */
+public class GrafikModel
+{
+  private ArrayList<Point> punkte;
+  
+  public GrafikModel()
+  {
+    punkte = new ArrayList<>();
+  }
+  
+  public void addPoint(Point p)
+  {
+    punkte.add(p);
+  }
+
+  public List<Point> getPunkte()
+  {
+    return Collections.unmodifiableList(punkte);
+  }
+  
+  public void speicherePunkte(String dateiname) throws FileNotFoundException, IOException
+  {
+    FileOutputStream fos = new FileOutputStream(dateiname);
+    BufferedOutputStream buffout = new BufferedOutputStream(fos);
+    ObjectOutputStream oos = new ObjectOutputStream(buffout);
+    oos.writeObject(punkte);
+    oos.flush();
+    oos.close();
+  }
+  
+  public void ladePunkte(String dateiname) throws FileNotFoundException, IOException, ClassNotFoundException
+  {
+    FileInputStream fis = new FileInputStream(dateiname);
+    BufferedInputStream buffin = new BufferedInputStream(fis);
+    ObjectInputStream ois = new ObjectInputStream(buffin);
+    Object obj = ois.readObject();
+//     if (obj instanceof ArrayList)
+//     {
+//       punkte = (ArrayList<Point>) obj;
+//     }
+//     else
+//     {
+//       Fehler ....
+//     }
+    punkte =  (ArrayList<Point>) ois.readObject();
+    ois.close();
+  }
+  
+}

src/mvcgrafik/view/GrafikView.java

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+/*
+ * 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 mvcgrafik.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.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 mvcgrafik.model.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 GrafikModel model;
+
+  public GrafikView()
+  {
+    pixel = new Rectangle2D.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;
+
+    for (Point p : model.getPunkte())
+    {
+      pixel.setFrame(p, EINS);
+      g2.draw(pixel);
+    }
+  }
+  
+  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;
+    if (pageIndex == 1)
+    {
+      g2p.translate(pf.getImageableX(), pf.getImageableY());
+      g2p.scale(pf.getImageableWidth()/pf.getWidth(), 
+                pf.getImageableHeight() / pf.getHeight());
+      super.print(g2p);
+      return Printable.PAGE_EXISTS;
+    }
+    else
+    {
+      return Printable.NO_SUCH_PAGE;
+    }
+  }
+
+}