Example usage for javax.swing SortingFocusTraversalPolicy SortingFocusTraversalPolicy

Introduction

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

Prototype

public SortingFocusTraversalPolicy(Comparator<? super Component> comparator) 

Source Link

Document

Constructs a SortingFocusTraversalPolicy with the specified Comparator.

Usage

From source file:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Reverse Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setLayout(new GridLayout(3, 3));
    for (int i = 0; i < 9; i++) {
        JButton button = new JButton(Integer.toString(i));
        frame.add(button);/*from w  w w .  j ava2 s  .c  om*/
    }
    final Container contentPane = frame.getContentPane();
    Comparator<Component> comp = new Comparator<Component>() {
        public int compare(Component c1, Component c2) {
            Component comps[] = contentPane.getComponents();
            List list = Arrays.asList(comps);
            int first = list.indexOf(c1);
            int second = list.indexOf(c2);
            return second - first;
        }
    };
    FocusTraversalPolicy policy = new SortingFocusTraversalPolicy(comp);
    frame.setFocusTraversalPolicy(policy);
    frame.setSize(300, 200);
    frame.setVisible(true);
}

---

From source file:MainClass.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Reverse Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    frame.setLayout(new GridLayout(3, 3));

    for (int i = 9; i > 0; i--) {
        JButton button = new JButton(Integer.toString(i));
        frame.add(button, 0);//from   www  .  jav a 2  s . co  m
    }

    final Container contentPane = frame.getContentPane();
    Comparator<Component> comp = new Comparator<Component>() {
        public int compare(Component c1, Component c2) {
            Component comps[] = contentPane.getComponents();
            List list = Arrays.asList(comps);
            int first = list.indexOf(c1);
            int second = list.indexOf(c2);
            return second - first;
        }
    };

    FocusTraversalPolicy policy = new SortingFocusTraversalPolicy(comp);
    frame.setFocusTraversalPolicy(policy);

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

---