Example usage for java.awt.event KeyAdapter KeyAdapter

Introduction

In this page you can find the example usage for java.awt.event KeyAdapter KeyAdapter.

Prototype

KeyAdapter

Source Link

Usage

From source file:Main.java

public static KeyListener maxLength(JTextComponent textComponent, int length) {
    return new KeyAdapter() {
        @Override// ww  w. j av a 2s  .c  o m
        public void keyTyped(KeyEvent e) {
            if (textComponent.getText().length() >= length) {
                e.consume();
                textComponent.setText(textComponent.getText().substring(0, length));
            }
        }
    };
}

From source file:Main.java

public static void addEscapeExitListeners(final JFrame window) {
    addKeyAdapterRecursively(window, new KeyAdapter() {
        @Override/*  w  w  w  .j  a  v  a 2s  . com*/
        public void keyPressed(final KeyEvent e) {
            if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
                System.exit(0);
            }
        }
    });
}

From source file:Main.java

/**
 * Attaches a key event listener to given component, simulating a button click upon
 * pressing enter within the context.//from   w  w  w. jav  a 2 s .  c o m
 * 
 * @param context
 * @param button
 */
public static void simulateClickOnEnter(Component context, JButton button) {
    context.addKeyListener(new KeyAdapter() {
        @Override
        public void keyPressed(KeyEvent e) {
            if (e.getKeyCode() == KeyEvent.VK_ENTER)
                button.doClick();
        }
    });
}

From source file:Main.java

/**
 * Set the text component in which only numerics (positive decimal integers
 * with character 0-9)./*from   www  .ja va 2s  .  co m*/
 * 
 * @param c
 *            the specified text component
 */
public static void setTextComponetIntegerValid(final JTextComponent c) {
    c.addKeyListener(new KeyAdapter() {
        @Override
        public void keyTyped(KeyEvent e) {
            if (e.getKeyChar() != KeyEvent.VK_BACK_SPACE)
                try {
                    Integer.valueOf(c.getText() + e.getKeyChar());
                } catch (NumberFormatException nfe) {
                    e.consume();
                    Toolkit.getDefaultToolkit().beep();
                }
        }
    });
}

From source file:Main.java

/**
 * Attaches a key event listener to given component, disposing of the given window
 * upon pressing escape within the context.
 * //w  w  w  . j a  v a  2  s  .  c o m
 * @param context
 * @param button
 */
public static void simulateExitOnEscape(Component context, JFrame window) {
    context.addKeyListener(new KeyAdapter() {
        @Override
        public void keyPressed(KeyEvent e) {
            if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
                for (WindowListener wl : window.getWindowListeners()) {
                    wl.windowClosing(new WindowEvent(window, WindowEvent.WINDOW_CLOSING));
                }

                if (window != null)
                    window.dispose();
            }
        }
    });
}

From source file:Main.java

public static void addEscapeExitListeners(final JDialog window) {
    addKeyAdapterRecursively(window, new KeyAdapter() {
        @Override// w ww .j a  v  a  2 s.  c o  m
        public void keyPressed(final KeyEvent e) {
            if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
                System.exit(0);
            }
        }
    });
}

From source file:Main.java

MyTextField(int len) {
    super(len);//from  w w  w  . j  av a2 s.c o m
    addKeyListener(new KeyAdapter() {
        public void keyPressed(KeyEvent evt) {
            int key = evt.getKeyCode();
            if (key == KeyEvent.VK_ENTER)
                transferFocus();
        }
    });
}

From source file:KeyTextComponent.java

public KeyTextComponent() {
    setBackground(Color.CYAN);/*ww w  .j  a  va  2  s  .com*/
    KeyListener internalKeyListener = new KeyAdapter() {
        public void keyPressed(KeyEvent keyEvent) {
            if (actionListenerList != null) {
                int keyCode = keyEvent.getKeyCode();
                String keyText = KeyEvent.getKeyText(keyCode);
                ActionEvent actionEvent = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, keyText);
                actionListenerList.actionPerformed(actionEvent);
            }
        }
    };
    MouseListener internalMouseListener = new MouseAdapter() {
        public void mousePressed(MouseEvent mouseEvent) {
            requestFocusInWindow();
        }
    };
    addKeyListener(internalKeyListener);
    addMouseListener(internalMouseListener);
}

From source file:Main.java

public Main() {
    DefaultTableModel model = new DefaultTableModel(0, 5) {
        @Override/*from w  w w.j  ava2 s . com*/
        public boolean isCellEditable(int row, int column) {
            return false;
        }
    };
    JTable table = new JTable(model);
    for (int i = 0; i < 20; i++) {
        model.addRow(new String[] { i + ".1", i + ".2", i + ".3", i + ".4", i + ".5", });
    }
    add(table, BorderLayout.CENTER);
    table.addKeyListener(new KeyAdapter() {
        public void keyPressed(KeyEvent e) {
            System.out.println("pressed");
            char key = e.getKeyChar();
            int selectedColumn = table.getSelectedColumn();
            for (int i = 0; i < model.getRowCount(); i++) {
                String value = (String) model.getValueAt(i, selectedColumn);
                model.setValueAt(value + key, i, selectedColumn);
            }
        }
    });
}

From source file:Main.java

public Main() throws HeadlessException {
    setSize(200, 200);//from www  .  j a  v  a2  s.  c  o m
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setLayout(new FlowLayout(FlowLayout.LEFT));

    JLabel usernameLabel = new JLabel("Username: ");
    JTextField usernameTextField = new JTextField();
    usernameTextField.setPreferredSize(new Dimension(100, 20));
    add(usernameLabel);
    add(usernameTextField);

    usernameTextField.addKeyListener(new KeyAdapter() {
        public void keyReleased(KeyEvent e) {
            JTextField textField = (JTextField) e.getSource();
            String text = textField.getText();
            textField.setText(text.toUpperCase());
        }

        public void keyTyped(KeyEvent e) {
        }

        public void keyPressed(KeyEvent e) {
        }
    });
}