Example usage for javax.swing JTextArea setFocusTraversalKeys

Introduction

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

Prototype

public void setFocusTraversalKeys(int id, Set<? extends AWTKeyStroke> keystrokes) 

Source Link

Document

Sets the focus traversal keys for a given traversal operation for this Component.

Usage

From source file:com.haulmont.cuba.desktop.gui.components.DesktopTextArea.java

@Override
protected JTextArea createTextComponentImpl() {
    final JTextArea impl = new TextAreaFlushableField();

    if (isTabTraversal()) {
        Set<KeyStroke> forwardFocusKey = Collections.singleton(getKeyStroke(KeyEvent.VK_TAB, 0));
        impl.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, forwardFocusKey);

        Set<KeyStroke> backwardFocusKey = Collections
                .singleton(getKeyStroke(KeyEvent.VK_TAB, KeyEvent.SHIFT_MASK));
        impl.setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, backwardFocusKey);

        impl.addKeyListener(new KeyAdapter() {
            @Override/*from  w  ww. jav  a2 s .com*/
            public void keyPressed(KeyEvent e) {
                if (isEnabled() && isEditable() && e.getKeyCode() == KeyEvent.VK_TAB
                        && e.getModifiers() == KeyEvent.CTRL_MASK) {

                    if (StringUtils.isEmpty(impl.getText())) {
                        impl.setText("\t");
                    } else {
                        impl.append("\t");
                    }
                }
            }
        });
    }

    impl.setLineWrap(true);
    impl.setWrapStyleWord(true);

    int height = (int) impl.getPreferredSize().getHeight();
    impl.setMinimumSize(new Dimension(0, height));

    composition = new JScrollPane(impl);
    composition.setPreferredSize(new Dimension(150, height));
    composition.setMinimumSize(new Dimension(0, height));

    doc.putProperty("filterNewlines", false);

    return impl;
}

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