TP

DEV2.1/TP08/Attente.java

@@ -0,0 +1,35 @@
+import java.awt.*;
+import javax.swing.*;
+import java.awt.event.*;
+
+public class Attente {
+	public static void main(String[] args) {
+		JFrame fenetre = new JFrame();
+		fenetre.setSize(300,200);
+		fenetre.setLocation(100,100);
+		fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		fenetre.setLayout(new GridLayout(1, 1));
+
+		JPanel panneau = new JPanel();
+
+
+		panneau.setLayout(new BorderLayout());
+		panneau.setBackground(Color.GREEN);
+		FenetreListener listener = new FenetreListener();
+		fenetre.addWindowListener(listener);
+		fenetre.add(panneau);
+
+		if (listener.getEstActive()) {
+			System.out.println("Fenetre activée");
+			panneau.add(new CercleMagenta());
+			fenetre.repaint();
+		}
+		else {
+			System.out.println("Fenetre désactivée");
+			panneau.add(new Sautoir());
+			fenetre.repaint();
+		}
+
+		fenetre.setVisible(true);
+	}
+}

DEV2.1/TP08/CercleMagenta.java

@@ -0,0 +1,19 @@
+import java.awt.*;
+import javax.swing.*;
+import java.awt.event.WindowEvent;
+import java.awt.event.WindowListener;
+
+public class CercleMagenta extends JComponent {
+	@Override 
+	public void paintComponent(Graphics pinceau) {
+		Graphics secondPinceau = pinceau.create();
+
+		if (this.isOpaque()) {
+			secondPinceau.setColor(this.getBackground());
+			secondPinceau.drawRect(0, 0, this.getWidth(), this.getHeight());
+		}
+
+		secondPinceau.setColor(Color.MAGENTA);
+		secondPinceau.fillOval(0, 0, this.getWidth(), this.getHeight());
+	}
+}

DEV2.1/TP08/FenetreListener.java

@@ -0,0 +1,28 @@
+import java.awt.event.*;
+import javax.swing.*;
+
+public class FenetreListener extends WindowAdapter {
+
+	private boolean estActive;
+
+	public FenetreListener() {
+		this.estActive = true;
+	}
+
+	public boolean getEstActive() {
+		return this.estActive;
+	}
+
+
+	@Override
+	public void windowActivated(WindowEvent e) {
+		this.estActive = true;
+	}
+
+	@Override
+	public void windowDeactivated(WindowEvent e) {
+		this.estActive = false;
+	}
+
+
+}

DEV2.1/TP08/Fond.java

@@ -0,0 +1,45 @@
+import java.awt.*;
+import javax.swing.*;
+import java.awt.event.ActionListener;
+import java.awt.event.ActionEvent;
+
+public class Fond {
+	public static void main(String[] args) {
+		JFrame fenetre = new JFrame();
+		fenetre.setSize(300,200);
+		fenetre.setLocation(100,100);
+		fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		fenetre.setLayout(new GridLayout(1, 1));
+
+		JPanel panneau = new JPanel();
+
+		JButton bouton1 = new JButton("Cyan");
+		JButton bouton2 = new JButton("Magenta");
+		JButton bouton3 = new JButton("Jaune");
+
+		bouton1.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent evenement) {
+				panneau.setBackground(Color.CYAN);
+			}
+		});
+
+		bouton2.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent evenement) {
+				panneau.setBackground(Color.MAGENTA);
+			}
+		});
+
+		bouton3.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent evenement) {
+				panneau.setBackground(Color.YELLOW);
+			}
+		});
+
+		panneau.add(bouton1);
+		panneau.add(bouton2);
+		panneau.add(bouton3);
+
+		fenetre.add(panneau);
+		fenetre.setVisible(true);
+	}
+}

DEV2.1/TP08/Sautoir.java

@@ -0,0 +1,38 @@
+import java.awt.*;
+import javax.swing.*;
+
+public class Sautoir extends JComponent {
+
+	@Override
+	protected void paintComponent(Graphics pinceau) {
+    	// obligatoire : on crée un nouveau pinceau pour pouvoir le modifier plus tard
+    	Graphics secondPinceau = pinceau.create();
+    	// obligatoire : si le composant n'est pas censé être transparent
+    	if (this.isOpaque()) {
+        	// obligatoire : on repeint toute la surface avec la couleur de fond
+        	secondPinceau.setColor(this.getBackground());
+        	secondPinceau.fillRect(0, 0, this.getWidth(), this.getHeight());
+   		}
+
+   		int[] coord_x = {0, this.getWidth(), 0, this.getWidth()};
+   		int[] coord_y = {0, 0, this.getHeight(), this.getHeight()};
+   		Polygon p = new Polygon(coord_x, coord_y, 4);
+   		secondPinceau.setColor(Color.CYAN);
+   		secondPinceau.fillPolygon(p); 
+
+   	}
+
+   	public static void main(String[] args) {
+   		JFrame fenetre = new JFrame();
+		GridLayout layout = new GridLayout(5, 5);
+    	// on configure la fenetre
+    	fenetre.setSize(250, 250);
+    	fenetre.setLocation(0, 0);
+    	fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+    	fenetre.setLayout(layout);
+    	for (int i = 0; i != 25; i++) {
+    		fenetre.add(new Sautoir());
+    	}
+    	fenetre.setVisible(true);
+   	}
+}