FileDocCategorySizeDatePackage
Framework.javaAPI DocExample4185Tue Dec 12 18:59:16 GMT 2000None

Framework

public class Framework extends WindowAdapter

Fields Summary
public int
numWindows
private Point
lastLocation
private int
maxX
private int
maxY
Constructors Summary
public Framework()


      
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        maxX = screenSize.width - 50; 
        maxY = screenSize.height - 50; 
        makeNewWindow();
Methods Summary
public static voidmain(java.lang.String[] args)

        Framework framework = new Framework();
public voidmakeNewWindow()

        JFrame frame = new MyFrame(this);
        numWindows++;
        System.out.println("Number of windows: " + numWindows);

        if (lastLocation != null) {
            //Move the window over and down 40 pixels.
            lastLocation.translate(40, 40);
            if ((lastLocation.x > maxX) || (lastLocation.y > maxY)) {
                lastLocation.setLocation(0, 0);
            }
            frame.setLocation(lastLocation);
        } else {
            lastLocation = frame.getLocation();
        }

        System.out.println("Frame location: " + lastLocation);
        frame.setVisible(true);
public voidquit(javax.swing.JFrame frame)

        if (quitConfirmed(frame)) {
            System.out.println("Quitting.");
            System.exit(0);
        }
        System.out.println("Quit operation not confirmed; staying alive.");
private booleanquitConfirmed(javax.swing.JFrame frame)

        String s1 = "Quit";
        String s2 = "Cancel";
        Object[] options = {s1, s2};
        int n = JOptionPane.showOptionDialog(frame,
                "Windows are still open.\nDo you really want to quit?",
                "Quit Confirmation",
                JOptionPane.YES_NO_OPTION,
                JOptionPane.QUESTION_MESSAGE,
                null,
                options,
                s1);
        if (n == JOptionPane.YES_OPTION) {
            return true;
        } else {
            return false;
        }
public voidwindowClosed(java.awt.event.WindowEvent e)

        numWindows--;
        System.out.println("Number of windows = " + numWindows);
        if (numWindows <= 0) {
            System.out.println("All windows gone.  Bye bye!");
            System.exit(0);
        }