Example usage for javax.swing.event AncestorEvent getAncestorParent

Introduction

In this page you can find the example usage for javax.swing.event AncestorEvent getAncestorParent.

Prototype

public Container getAncestorParent() 

Source Link

Document

Returns the parent of the ancestor the event actually occurred on.

Usage

From source file:Main.java

public static void main(String args[]) {
    final JFrame frame = new JFrame();
    Container contentPane = frame.getContentPane();
    JButton b = new JButton("Hide for 5");
    ActionListener action = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            frame.setVisible(false);//from   w  ww  .j ava2s  .co  m
            TimerTask task = new TimerTask() {
                public void run() {
                    frame.setVisible(true);
                }
            };
            Timer timer = new Timer();
            timer.schedule(task, 5000);
        }
    };
    b.addActionListener(action);
    AncestorListener ancestor = new AncestorListener() {
        public void ancestorAdded(AncestorEvent e) {
            System.out.println("Added");
            dumpInfo(e);
        }

        public void ancestorMoved(AncestorEvent e) {
            System.out.println("Moved");
            dumpInfo(e);
        }

        public void ancestorRemoved(AncestorEvent e) {
            System.out.println("Removed");
            dumpInfo(e);
        }

        private void dumpInfo(AncestorEvent e) {
            System.out.println("\tAncestor: " + name(e.getAncestor()));
            System.out.println("\tAncestorParent: " + name(e.getAncestorParent()));
            System.out.println("\tComponent: " + name(e.getComponent()));
        }

        private String name(Container c) {
            return (c == null) ? null : c.getName();
        }
    };
    b.addAncestorListener(ancestor);
    contentPane.add(b, BorderLayout.NORTH);
    frame.setSize(300, 200);
    frame.setVisible(true);
}

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