Форум программистов [Powered by Invision Power Board]

Код


import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JTextField;
import java.awt.event.*;
 


public class HotKeyTest {
 
    private JFrame frame = null;
    private JTextField shortcut=null;
 
    public void test() {
        frame = new JFrame("Test");
        shortcut = new javax.swing.JTextField();
        shortcut.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyPressed(java.awt.event.KeyEvent evt) {
                shortcutKeyPressed(evt);
            }
            public void keyTyped(java.awt.event.KeyEvent evt) {
                shortcutKeyTyped(evt);
            }
        });
        frame.setLayout(new BorderLayout());
        frame.getContentPane().add(shortcut, BorderLayout.NORTH);
        frame.setSize(
                200, 200);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(
                true);
    }
    
    private void shortcutKeyPressed(java.awt.event.KeyEvent evt) {
        String acceleratorText = "";
        int modifiers = evt.getModifiers();
        int keyCode = evt.getKeyCode();
        if (modifiers == 0) {
            // Handle back space key.
            if (this.shortcut.getText() != null &&
                    !this.shortcut.getText().trim().equals("") && keyCode ==
                    KeyEvent.VK_BACK_SPACE) {
                this.shortcut.setText("");                
                return;
            }
            // If only a character or digit typed, return.
            if (Character.isLetterOrDigit(evt.getKeyChar())) {
                return;
            }
        }
        if (modifiers > 0) {
            acceleratorText = KeyEvent.getKeyModifiersText(modifiers);
            acceleratorText += "+";
        }
        // Determine the display text
        if (!(keyCode == KeyEvent.VK_CONTROL || keyCode == KeyEvent.VK_ALT ||
                keyCode == KeyEvent.VK_SHIFT)) {
            if (keyCode != 0) {
                acceleratorText += KeyEvent.getKeyText(keyCode);
            } else {
                acceleratorText += evt.getKeyChar();
            }
        }
        this.shortcut.setText(acceleratorText);
    }
    
    private void shortcutKeyTyped(java.awt.event.KeyEvent evt) {
        evt.consume();
    }        
 
    public static void main(String args[]) {
        new HotKeyTest().test();
    }
}