Example usage for javax.swing JPanel addContainerListener

Introduction

In this page you can find the example usage for javax.swing JPanel addContainerListener.

Prototype

public synchronized void addContainerListener(ContainerListener l) 

Source Link

Document

Adds the specified container listener to receive container events from this container.

Usage

From source file:Main.java

public static void main(String[] a) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel buttonPanel = new JPanel();
    buttonPanel.addContainerListener(new ContainerListener() {
        public void componentAdded(ContainerEvent e) {
            displayMessage(" added to ", e);
        }//from   w  w  w.  j  av  a2  s  .  co m

        public void componentRemoved(ContainerEvent e) {
            displayMessage(" removed from ", e);
        }

        void displayMessage(String action, ContainerEvent e) {
            System.out.println(((JButton) e.getChild()).getText() + " was" + action
                    + e.getContainer().getClass().getName());
        }
    });
    buttonPanel.add(new JButton("A"));

    frame.add(buttonPanel);

    frame.setSize(300, 200);
    frame.setVisible(true);
}

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From source file:UsingContainerListener.java

public static void main(String[] a) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel buttonPanel = new JPanel();
    buttonPanel.addContainerListener(new ContainerListener() {

        public void componentAdded(ContainerEvent e) {
            displayMessage(" added to ", e);
        }/*from  w  w w.j  av  a  2  s  . c o m*/

        public void componentRemoved(ContainerEvent e) {
            displayMessage(" removed from ", e);
        }

        void displayMessage(String action, ContainerEvent e) {
            System.out.println(((JButton) e.getChild()).getText() + " was" + action
                    + e.getContainer().getClass().getName());
        }
    });
    buttonPanel.add(new JButton("A"));

    frame.add(buttonPanel);

    frame.setSize(300, 200);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] a) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel buttonPanel = new JPanel(true);
    buttonPanel.addContainerListener(new ContainerListener() {
        public void componentAdded(ContainerEvent e) {
            displayMessage(" added to ", e);
        }//www  .j  av a  2 s.  co m

        public void componentRemoved(ContainerEvent e) {
            displayMessage(" removed from ", e);
        }

        void displayMessage(String action, ContainerEvent e) {
            System.out.println(((JButton) e.getChild()).getText() + " was" + action
                    + e.getContainer().getClass().getName());
        }
    });
    buttonPanel.add(new JButton("A"));

    frame.add(buttonPanel);

    frame.setSize(300, 200);
    frame.setVisible(true);
}

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