java.awt.event.WindowEvent#WINDOW_DEICONIFIED源码实例Demo

@Override
public void eventDispatched(AWTEvent event) {
    int eventID = event.getID();

    Window window =((WindowEvent) event).getWindow();

    if (eventID == WindowEvent.WINDOW_OPENED ||
            eventID == WindowEvent.WINDOW_ACTIVATED ||
            eventID == WindowEvent.WINDOW_CLOSING ||
            eventID == WindowEvent.WINDOW_CLOSED || 
            eventID == WindowEvent.WINDOW_ICONIFIED ||
            eventID == WindowEvent.WINDOW_DEICONIFIED) {
        logWindow(window, eventID);
    }

    for (WindowHandler wh : windowHandlers) {
        if (wh.filterEvent(window, eventID) && wh.recogniseWindow(window))  {
            wh.handleWindow(window, eventID);
            break;
        }
    }

}
 

static String windowEventToString(int eventID) {
    switch (eventID) { 
        case WindowEvent.WINDOW_ACTIVATED:
            return "Activated";
        case WindowEvent.WINDOW_CLOSED:
            return "Closed";
        case WindowEvent.WINDOW_CLOSING:
            return "Closing";
        case WindowEvent.WINDOW_DEACTIVATED:
            return "Deactivated";
        case WindowEvent.WINDOW_DEICONIFIED:
            return "Deiconified";
        case WindowEvent.WINDOW_GAINED_FOCUS:
            return "Focused";
        case WindowEvent.WINDOW_ICONIFIED:
            return "Iconified";
        case WindowEvent.WINDOW_LOST_FOCUS:
            return "Lost focus";
        case WindowEvent.WINDOW_OPENED:
            return "Opened";
        case WindowEvent.WINDOW_STATE_CHANGED:
            return "State changed";
        default:
            return "???";
    }
}
 

/**
 * Processes events on this window. If the event is an
 * {@code WindowEvent}, it invokes the
 * {@code processWindowEvent} method, else it invokes its
 * superclass's {@code processEvent}.
 * <p>Note that if the event parameter is {@code null}
 * the behavior is unspecified and may result in an
 * exception.
 *
 * @param e the event
 */
protected void processEvent(AWTEvent e) {
    if (e instanceof WindowEvent) {
        switch (e.getID()) {
            case WindowEvent.WINDOW_OPENED:
            case WindowEvent.WINDOW_CLOSING:
            case WindowEvent.WINDOW_CLOSED:
            case WindowEvent.WINDOW_ICONIFIED:
            case WindowEvent.WINDOW_DEICONIFIED:
            case WindowEvent.WINDOW_ACTIVATED:
            case WindowEvent.WINDOW_DEACTIVATED:
                processWindowEvent((WindowEvent)e);
                break;
            case WindowEvent.WINDOW_GAINED_FOCUS:
            case WindowEvent.WINDOW_LOST_FOCUS:
                processWindowFocusEvent((WindowEvent)e);
                break;
            case WindowEvent.WINDOW_STATE_CHANGED:
                processWindowStateEvent((WindowEvent)e);
                break;
        }
        return;
    }
    super.processEvent(e);
}
 

static String windowEventToString(int eventID) {
    switch (eventID) { 
        case WindowEvent.WINDOW_ACTIVATED:
            return "Activated";
        case WindowEvent.WINDOW_CLOSED:
            return "Closed";
        case WindowEvent.WINDOW_CLOSING:
            return "Closing";
        case WindowEvent.WINDOW_DEACTIVATED:
            return "Deactivated";
        case WindowEvent.WINDOW_DEICONIFIED:
            return "Deiconfied";
        case WindowEvent.WINDOW_GAINED_FOCUS:
            return "Focused";
        case WindowEvent.WINDOW_ICONIFIED:
            return "Iconified";
        case WindowEvent.WINDOW_LOST_FOCUS:
            return "Lost focus";
        case WindowEvent.WINDOW_OPENED:
            return "Opened";
        case WindowEvent.WINDOW_STATE_CHANGED:
            return "State changed";
        default:
            return "???";
    }
}
 

boolean eventEnabled(AWTEvent e) {
    switch(e.id) {
      case WindowEvent.WINDOW_OPENED:
      case WindowEvent.WINDOW_CLOSING:
      case WindowEvent.WINDOW_CLOSED:
      case WindowEvent.WINDOW_ICONIFIED:
      case WindowEvent.WINDOW_DEICONIFIED:
      case WindowEvent.WINDOW_ACTIVATED:
      case WindowEvent.WINDOW_DEACTIVATED:
        if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
            windowListener != null) {
            return true;
        }
        return false;
      case WindowEvent.WINDOW_GAINED_FOCUS:
      case WindowEvent.WINDOW_LOST_FOCUS:
        if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
            windowFocusListener != null) {
            return true;
        }
        return false;
      case WindowEvent.WINDOW_STATE_CHANGED:
        if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
            windowStateListener != null) {
            return true;
        }
        return false;
      default:
        break;
    }
    return super.eventEnabled(e);
}
 

/**
 * Processes window events occurring on this window by
 * dispatching them to any registered WindowListener objects.
 * NOTE: This method will not be called unless window events
 * are enabled for this component; this happens when one of the
 * following occurs:
 * <ul>
 * <li>A WindowListener object is registered via
 *     {@code addWindowListener}
 * <li>Window events are enabled via {@code enableEvents}
 * </ul>
 * <p>Note that if the event parameter is {@code null}
 * the behavior is unspecified and may result in an
 * exception.
 *
 * @param e the window event
 * @see Component#enableEvents
 */
protected void processWindowEvent(WindowEvent e) {
    WindowListener listener = windowListener;
    if (listener != null) {
        switch(e.getID()) {
            case WindowEvent.WINDOW_OPENED:
                listener.windowOpened(e);
                break;
            case WindowEvent.WINDOW_CLOSING:
                listener.windowClosing(e);
                break;
            case WindowEvent.WINDOW_CLOSED:
                listener.windowClosed(e);
                break;
            case WindowEvent.WINDOW_ICONIFIED:
                listener.windowIconified(e);
                break;
            case WindowEvent.WINDOW_DEICONIFIED:
                listener.windowDeiconified(e);
                break;
            case WindowEvent.WINDOW_ACTIVATED:
                listener.windowActivated(e);
                break;
            case WindowEvent.WINDOW_DEACTIVATED:
                listener.windowDeactivated(e);
                break;
            default:
                break;
        }
    }
}