push

DEV2.1/TP09/Exo1/Cercles.java

@@ -0,0 +1,33 @@
+import java.awt.Color;
+import java.awt.Graphics;
+import javax.swing.JComponent;
+
+public class Cercles extends JComponent {
+    private int i;
+    public Cercles(){
+        super();
+    }
+
+    public void getNombre(int a){
+        this.i=a;
+        this.repaint();
+    }
+
+    @Override
+    public void paintComponent(Graphics pinceau){
+        Graphics pinpin=pinceau.create();
+        if(this.isOpaque()){
+            pinpin.setColor(this.getBackground());
+            pinpin.fillRect(0, 0, this.getWidth(), this.getHeight());
+        }
+
+        for (int j = 0; j < this.i; j++) {
+            pinpin.setColor(Color.YELLOW);
+            pinpin.fillOval(j*30, this.getHeight()/2, 20, 20);
+        }
+        for (int j=this.i; j < 10; j++) {
+            pinpin.setColor(Color.GRAY);
+            pinpin.fillOval(j*30, this.getHeight()/2, 20, 20);
+        }
+    }
+}

DEV2.1/TP09/Exo1/Volume.java

@@ -0,0 +1,17 @@
+import javax.swing.JFrame;
+
+public class Volume {
+    public static void main(String[] args) {
+        JFrame fenetre=new JFrame();
+        fenetre.setSize(500,100);
+        fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        
+        Cercles test=new Cercles();
+        VolumeAct stiti=new VolumeAct(test);        
+
+        fenetre.addMouseWheelListener(stiti);
+        fenetre.add(test);
+
+        fenetre.setVisible(true);
+    }
+}

DEV2.1/TP09/Exo1/VolumeAct.java

@@ -0,0 +1,25 @@
+import java.awt.event.*;
+
+public class VolumeAct implements MouseWheelListener {
+    private int a;
+    private Cercles ce;
+    public VolumeAct(Cercles chat){
+        super();
+        this.a=0;
+        this.ce=chat;
+    }
+
+    public void mouseWheelMoved(MouseWheelEvent e){
+        int i;
+        i=e.getWheelRotation();
+        if(i<0 && this.a<10){
+            this.a++;
+            ce.getNombre(this.a);
+        }
+        
+        if(i>0 && this.a>0){
+            this.a--;
+            ce.getNombre(this.a);
+        }
+    }
+}