TP

DEV2.1/TP12/01_Memoire/FermetureFenetre.java

@@ -0,0 +1,97 @@
+import java.awt.*;
+import java.awt.event.*;
+import java.io.*;
+import java.awt.event.WindowListener;
+import java.awt.event.WindowEvent;
+import javax.swing.*;
+
+public class FermetureFenetre implements WindowListener {
+
+	private JPanel panneau;
+	private JFrame fenetre;
+
+	public FermetureFenetre(JFrame fenetre, JPanel panneau) {
+		super();
+		this.fenetre = fenetre;
+		this.panneau = panneau;
+	}
+
+	public void windowActivated(WindowEvent evenement) {
+
+	}   // premier plan
+
+	public void windowClosed(WindowEvent evenement) {
+
+	}        
+	public void windowClosing(WindowEvent evenement) {
+		try {
+			Dimension dims = this.fenetre.getSize();
+			Point loc = this.fenetre.getLocation();
+			Color color = this.panneau.getBackground();
+			FileOutputStream fichier = new FileOutputStream("windowlocation.bin");
+			DataOutputStream flux = new DataOutputStream(fichier);
+
+			try {
+				flux.writeInt((int) loc.getX());
+				flux.writeInt((int) loc.getY());
+				flux.writeInt((int) dims.getWidth());
+				flux.writeInt((int) dims.getHeight());
+				flux.writeInt(color.getRed());
+				flux.writeInt(color.getGreen());
+				flux.writeInt(color.getBlue());
+			} catch (IOException e2){
+				System.out.println("Erreur d'écriture");
+			}
+
+			try {
+				flux.close();
+			} catch (IOException e3) {
+				System.out.println("Erreur de fermeture");
+			}
+		} catch (IOException e) {
+			System.out.println("Erreur d'ouverture");
+		}
+	}      // avant fermeture
+
+	public void windowDeactivated(WindowEvent evenement) {
+
+	}   // arrière-plan
+
+	public void windowDeiconified(WindowEvent evenement) {
+
+	} // restauration
+
+	public void windowIconified(WindowEvent evenement){
+
+	}    // minimisation
+
+	public void windowOpened(WindowEvent evenement) {
+		try {
+			FileInputStream fichier = new FileInputStream("windowlocation.bin");
+			DataInputStream flux = new DataInputStream(fichier);
+
+			try {
+
+				if (flux.available() >= 28) {
+					this.fenetre.setLocation(flux.readInt(), flux.readInt());
+					this.fenetre.setSize(flux.readInt(), flux.readInt());
+					this.panneau.setBackground(new Color(flux.readInt(), flux.readInt(), flux.readInt()));
+					System.out.println(this.panneau.getBackground() + "");
+				}
+
+
+			} catch (IOException e5) {
+				System.out.println("Erreur de lecture");
+			}
+
+			try {
+				flux.close();
+			} catch (IOException e6) {
+				System.out.println("Erreur de fermeture");
+			}
+			
+		} catch (IOException e4) {
+			System.out.println("Erreur d'ouverture");
+		}
+	} 
+}

DEV2.1/TP12/01_Memoire/Fond.java

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+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();
+		JPanel panneau = new JPanel();
+		FermetureFenetre evenementFenetre = new FermetureFenetre(fenetre, panneau);
+		fenetre.addWindowListener(evenementFenetre);
+		fenetre.setLocation(100,100);
+		fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		fenetre.setLayout(new GridLayout(1, 1));
+
+
+		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);
+	}
+}