Otra interfaz mas

diff --git a/src/AngCanvas.java b/src/AngCanvas.java
new file mode 100644 (file)
index 0000000..20b61a1
--- /dev/null
+++ b/src/AngCanvas.java
@@ -0,0 +1,34 @@
+
+import java.awt.*;
+import java.awt.event.*;
+import java.util.*;
+
+public class AngCanvas extends Canvas implements Observer
+{
+       private int radianes;
+
+       public AngCanvas (Angulo g) {
+               radianes = g.getGrados ();
+       }
+
+       public void paint(Graphics g) {
+               g.setColor(Color.BLACK);
+               g.fillRect(0, 0, 400, 400);
+               g.setColor( Color.RED );
+               g.fillArc(100, 100, 200 , 200, 0, radianes);
+               System.out.println  (radianes);
+       }
+
+       public Dimension getPreferredSize(){
+               return new Dimension (400, 400);
+       }
+
+       public void update(Observable obs, Object obj)
+       {
+               if (obs instanceof Angulo) {
+                       radianes = ((Angulo)obs).getGrados ();
+               }
+               repaint ();
+       }
+}
+

diff --git a/src/AngGraf.java b/src/AngGraf.java
new file mode 100644 (file)
index 0000000..698954a
--- /dev/null
+++ b/src/AngGraf.java
@@ -0,0 +1,59 @@
+
+import java.awt.*;
+import java.awt.event.*;
+import java.util.*;
+
+public class AngGraf extends Frame implements Observer
+{
+       private Panel panel;
+       private Button boton;
+       private Label label;
+       private AngCanvas canvas;
+       private Angulo angulo;
+
+       public AngGraf (Angulo f)
+       {
+               angulo = f;
+
+               panel = new Panel ();
+               label = new Label(f.toString (), Label.CENTER);
+               boton = new Button ("Mitad!");
+               canvas = new AngCanvas (f);
+
+               panel.setLayout (new BorderLayout ());
+               panel.add (label, BorderLayout.NORTH);
+               panel.add (canvas, BorderLayout.CENTER);
+               panel.add (boton, BorderLayout.SOUTH);
+       
+               add (panel, BorderLayout.CENTER );
+               setSize (500, 300);
+               setVisible (true);
+                       
+               f.addObserver (this);
+               f.addObserver (canvas);
+       }
+
+       public boolean action (Event evt, Object obj) {
+               if (evt.target.equals(boton)) {
+                       angulo.fromRadianes ( angulo.toRadianes () / 2);
+               }
+
+               return true;
+       }
+
+       public void update(Observable obs, Object obj)
+       {
+               label.setText (obs.toString ());
+       }
+
+       static public void main (String[] args) {
+               Angulo modelo = null;
+               try {
+                       modelo = new Angulo (359, 0, 0);
+               }
+               catch (Exception e) {
+               }
+
+               AngGraf vista = new AngGraf (modelo);
+       }
+}

diff --git a/src/Angulo.java b/src/Angulo.java
index 34e24cc50855988d1eeadeddb72c2a2aae8f1a04..61a8d444a3aab1bc0b002d74a9cf7714191b1366 100644 (file)
--- a/src/Angulo.java
+++ b/src/Angulo.java
@@ -1,5 +1,6 @@
+import java.util.*;
 
-public class Angulo implements OperAng, ComparaAng {
+public class Angulo extends Observable implements OperAng, ComparaAng {
 
     private int signo;
     private int grados;
@@ -27,19 +28,27 @@ public class Angulo implements OperAng, ComparaAng {
             signo = -1;
         else
             signo = 1;
+                               setChanged ();
+                               notifyObservers ();
     }
 
     public void setGrados(int g) {
         setSigno(g);
         grados = Math.abs(g % 360);
+                               setChanged ();
+                               notifyObservers ();
     }
 
     public void setMinutos(int m) {
         minutos = Math.abs(m % 60);
+                               setChanged ();
+                               notifyObservers ();
     }
 
     public void setSegundos(int s) {
         segundos = Math.abs(s % 60);
+                               setChanged ();
+                               notifyObservers ();
     }
 
     public Angulo() {