Examples of javax.swing.KeyStroke

javax.swing.KeyStroke
A KeyStroke represents a key action on the keyboard, or equivalent input device. KeyStrokes can correspond to only a press or release of a particular key, just as KEY_PRESSED and KEY_RELEASED KeyEvents do; alternately, they can correspond to typing a specific Java character, just as KEY_TYPED KeyEvents do. In all cases, KeyStrokes can specify modifiers (alt, shift, control, meta, altGraph, or a combination thereof) which must be present during the action for an exact match.
KeyStrokes are used to define high-level (semantic) action events. Instead of trapping every keystroke and throwing away the ones you are not interested in, those keystrokes you care about automatically initiate actions on the Components with which they are registered.
KeyStrokes are immutable, and are intended to be unique. Client code cannot create a KeyStroke; a variant of getKeyStroke must be used instead. These factory methods allow the KeyStroke implementation to cache and share instances efficiently.
Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans™ has been added to the java.beans package. Please see {@link java.beans.XMLEncoder}. @see javax.swing.text.Keymap @see #getKeyStroke @author Arnaud Weber @author David Mendenhall

        public void onCloseRequest() {
          hideFindBox();
        }
      });
      top.add(closeButton);
      KeyStroke key = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
      getInputMap(WHEN_IN_FOCUSED_WINDOW).put(key, "find-cancel");
      key = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0);
      getInputMap(WHEN_IN_FOCUSED_WINDOW).put(key, "find-search");
      getActionMap().put("find-search", new AbstractAction() {
        public void actionPerformed(ActionEvent e) {

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     * <tt>Action</tt>s.
     */
    protected void installKeyboardActions() {


        InputMap inputMap = getInputMap(JComponent.WHEN_FOCUSED);
        KeyStroke key;


        key = KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0);
        inputMap.put(key, SCROLL_RIGHT_ACTION);


        key = KeyStroke.getKeyStroke(KeyEvent.VK_LEFT, 0);

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     * <tt>Action</tt>s.
     */
    protected void installKeyboardActions() {


        InputMap inputMap = getInputMap(JComponent.WHEN_FOCUSED);
        KeyStroke key;


        key = KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0);
        inputMap.put(key, SCROLL_RIGHT_ACTION);


        key = KeyStroke.getKeyStroke(KeyEvent.VK_LEFT, 0);

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    }
  }
  public void test(TestHarness harness)
  {
    MyJComponent c = new MyJComponent();
    KeyStroke ks = KeyStroke.getKeyStroke('a');
    ActionListener a1 = new ActionListener() 
    {
      public void actionPerformed(ActionEvent e) 
      {
        // ignore

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public class get implements Testlet 
{
  public void test(TestHarness harness)
  {
    InputMap m = new InputMap();
    KeyStroke ks1 = KeyStroke.getKeyStroke('a');
    harness.check(m.get(ks1), null);
    m.put(ks1, "ABC");
    harness.check(m.get(ks1), "ABC");
    
    harness.check(m.get(null), null);
    
    // check that a binding in the parent is found
    InputMap p = new InputMap();
    KeyStroke ks2 = KeyStroke.getKeyStroke('b');
    p.put(ks2, "XYZ");
    m.setParent(p);
    harness.check(m.get(ks2), "XYZ");
  }

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public class put implements Testlet
{
  public void test(TestHarness harness)
  {
    InputMap m = new InputMap();
    KeyStroke ks1 = KeyStroke.getKeyStroke('a');
    m.put(ks1, "ABC");
    harness.check(m.get(ks1), "ABC");
    m.put(ks1, "DEF");
    harness.check(m.get(ks1), "DEF");
    m.put(ks1, null);

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public class remove implements Testlet
{
  public void test(TestHarness harness)
  {
    InputMap m = new InputMap();
    KeyStroke ks1 = KeyStroke.getKeyStroke('a');
    
    // try removing from an empty map
    m.remove(ks1);
    harness.check(m.get(ks1), null);
    
    // add and remove
    m.put(ks1, "ABC");
    harness.check(m.get(ks1), "ABC");
    m.remove(ks1);
    harness.check(m.get(ks1), null);
    
    // try removing null
    m.remove(null);
    harness.check(m.size(), 0);
    m.put(ks1, "ABC");
    m.remove(null);
    harness.check(m.size(), 1);
    
    // confirm that remove doesn't affect the parent
    KeyStroke ks2 = KeyStroke.getKeyStroke('b');
    InputMap p = new InputMap();
    p.put(ks2, "ZZZ");
    m.setParent(p);
    m.remove(ks2);
    harness.check(m.get(ks2), "ZZZ");

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{
  public void test(TestHarness harness)
  {
    InputMap m = new InputMap();
    harness.check(m.allKeys(), null);
    KeyStroke ks1 = KeyStroke.getKeyStroke('a');
    m.put(ks1, "AAA");
    KeyStroke[] keys = m.allKeys();
    harness.check(keys.length, 1);
    harness.check(keys[0], ks1);
    
    InputMap p = new InputMap();
    m.setParent(p);
    keys = m.allKeys();
    harness.check(keys.length, 1);
    harness.check(keys[0], ks1);
    
    KeyStroke ks2 = KeyStroke.getKeyStroke('b');
    p.put(ks2, "BBB");
    keys = m.allKeys();
    harness.check(keys.length, 2);
    harness.check(keys[0], ks2);
    harness.check(keys[1], ks1);
    
    // try a KeyStroke that is defined in both maps
    KeyStroke ks3 = KeyStroke.getKeyStroke('z');
    p.put(ks3, "ZZZ");
    m.put(ks3, "XXX");
    keys = m.allKeys();
    harness.check(keys.length, 3);
    harness.check(keys[0], ks2);

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  }
  public void test(TestHarness harness)
  {
    JComponent c = new MyJComponent();
    harness.check(c.getRegisteredKeyStrokes().length, 0);
    KeyStroke ks0 = KeyStroke.getKeyStroke('a');
    KeyStroke ks1 = KeyStroke.getKeyStroke('b');
    KeyStroke ks2 = KeyStroke.getKeyStroke('c');;
    c.getInputMap(JComponent.WHEN_FOCUSED).put(ks0, "A");
    harness.check(c.getRegisteredKeyStrokes()[0], ks0);
    c.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(ks1, "B");
    harness.check(c.getRegisteredKeyStrokes()[0], ks0);
    harness.check(c.getRegisteredKeyStrokes()[1], ks1);

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        //System.out.println("got a go...");
        GoButtonPressed();
      }
    };


    KeyStroke keystroke = 
      KeyStroke.getKeyStroke('g');//, java.awt.event.InputEvent.CTRL_MASK);
    mainGuiPanel.getInputMap().put(keystroke, "go");
    mainGuiPanel.getActionMap().put("go", goAction);


    Color c = new Color((int)(Math.random() * 127 + 127),

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