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 addKeyboardAction() {
    mProgramTableScrollPane.deSelectItem();


    // register the global hot keys, so they also work when the main menu is not visible
    for (final TVBrowserAction action : TVBrowserActions.getActions()) {
      KeyStroke keyStroke = action.getAccelerator();
      if (keyStroke != null) {
        rootPane.registerKeyboardAction(new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            if (action.isEnabled()) {
              action.actionPerformed(null);
            }
          }
        }, keyStroke, JComponent.WHEN_IN_FOCUSED_WINDOW);
      }
    }


    KeyStroke stroke = KeyStroke.getKeyStroke(KeyEvent.VK_UP, InputEvent.CTRL_MASK);
    rootPane.registerKeyboardAction(new KeyboardAction(mProgramTableScrollPane,
        KeyboardAction.KEY_UP), stroke, JComponent.WHEN_IN_FOCUSED_WINDOW);


    stroke = KeyStroke.getKeyStroke(KeyEvent.VK_KP_UP, InputEvent.CTRL_MASK);
    rootPane.registerKeyboardAction(new KeyboardAction(mProgramTableScrollPane,

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        mFindAsYouType.isAlwaysVisible());
    mDialog.dispose();
  }


  private void addActionsToRootPane() {
    KeyStroke stroke = KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0);
    mInfoEP.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(stroke,
        "SCROLL_UP");
    mInfoEP.getInputMap(JComponent.WHEN_FOCUSED).put(stroke, "SCROLL_UP");
    mInfoEP.getActionMap().put("SCROLL_UP", mUpAction);

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  private JMenuItem createMenuItem(final TVBrowserAction action) {
    JMenuItem item = new JMenuItem(action);
    setLabelAndAccessKeys("", action.getMenuText(), item, action.useEllipsis());
    item.setIcon(action.getIcon());
    new MenuHelpTextAdapter(item, action.getMenuHelpText(), mLabel);
    KeyStroke accelerator = action.getAccelerator();
    if (accelerator != null) {
      item.setAccelerator(accelerator);
    }
    return item;
  }

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          mBackBtn.dispatchEvent(new KeyEvent(mBackBtn, KeyEvent.KEY_RELEASED, 0, 0, KeyEvent.VK_SPACE, ' '));
        }
      }
    };
    
    KeyStroke stroke = KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, 0);
    getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(stroke,"BACK");
    getRootPane().getActionMap().put("BACK", a);
    
    stroke = KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, InputEvent.ALT_MASK);
    getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(stroke,"BACK");

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  public static void register(Toolbar toolbar) {
    ActionMap amap = toolbar.getActionMap();
    InputMap imap = toolbar.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
    int mask = toolbar.getToolkit().getMenuShortcutKeyMask();
    for (int i = 0; i < 10; i++) {
      KeyStroke keyStroke = KeyStroke.getKeyStroke((char) ('0' + i), mask);
      int j = (i == 0 ? 10 : i - 1);
      KeyboardToolSelection action = new KeyboardToolSelection(toolbar, j);
      String key = "ToolSelect" + i;
      amap.put(key, action);
      imap.put(keyStroke, key);

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        setBlockAutoClosing(false);
        interrupt();
      }
    };


    KeyStroke stroke = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
    searchField.getInputMap(JComponent.WHEN_FOCUSED).put(stroke, "CLOSE_SEARCH");
    searchField.getActionMap().put("CLOSE_SEARCH", close);


    mFindNext.getInputMap(JComponent.WHEN_FOCUSED).put(stroke, "CLOSE_SEARCH");
    mFindNext.getActionMap().put("CLOSE_SEARCH", close);

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      }
    };


    if (OperatingSystem.isMacOs()) {
      // Add MacOS Apple+W for Closing of Dialogs
      KeyStroke stroke = KeyStroke.getKeyStroke(KeyEvent.VK_W,
          InputEvent.META_DOWN_MASK);
      component.getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW)
          .put(stroke, "CLOSE_ON_APPLE_W");
      component.getRootPane().getActionMap().put("CLOSE_ON_APPLE_W", a);


      stroke = KeyStroke.getKeyStroke(KeyEvent.VK_Q, InputEvent.META_DOWN_MASK);
      component.getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW)
          .put(stroke, "CLOSE_COMPLETE_ON_APPLE");
      component.getRootPane().getActionMap().put("CLOSE_COMPLETE_ON_APPLE",
          new AbstractAction() {
            public void actionPerformed(ActionEvent e) {
              MainFrame.getInstance().quit();
            }
          });
    }


    KeyStroke stroke = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
    component.getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(
        stroke, "CLOSE_ON_ESCAPE");
    component.getRootPane().getActionMap().put("CLOSE_ON_ESCAPE", a);
  }

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    expandPath(new TreePath(model.getRoot()));


    mInstance = this;
    /* remove the F2 key from the keyboard bindings of the JTree */
    InputMap inputMap = getInputMap();
    KeyStroke keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_F2, 0);
    inputMap.put(keyStroke, "none");


    new OverlayListener(this);
    (new DragSource()).createDefaultDragGestureRecognizer(this,
        DnDConstants.ACTION_MOVE, this);

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      oldAction.removePropertyChangeListener(getPropertyChangeHandler());


      final Object o = oldAction.getValue(ActionDowngrade.ACCELERATOR_KEY);
      if (o instanceof KeyStroke)
      {
        final KeyStroke k = (KeyStroke) o;
        unregisterKeyboardAction(k);
      }
    }
    this.action = newAction;
    if (this.action != null)
    {
      addActionListener(newAction);
      newAction.addPropertyChangeListener(getPropertyChangeHandler());


      setText((String) (newAction.getValue(Action.NAME)));
      setToolTipText((String) (newAction.getValue(Action.SHORT_DESCRIPTION)));
      setIcon((Icon) newAction.getValue(Action.SMALL_ICON));
      setEnabled(this.action.isEnabled());


      Object o = newAction.getValue(ActionDowngrade.MNEMONIC_KEY);
      if (o != null)
      {
        if (o instanceof Character)
        {
          final Character c = (Character) o;
          setMnemonic(c.charValue());
        }
        else if (o instanceof Integer)
        {
          final Integer c = (Integer) o;
          setMnemonic(c.intValue());
        }
      }
      o = newAction.getValue(ActionDowngrade.ACCELERATOR_KEY);
      if (o instanceof KeyStroke)
      {
        final KeyStroke k = (KeyStroke) o;
        registerKeyboardAction(newAction, k, JComponent.WHEN_IN_FOCUSED_WINDOW);
      }
    }
  }

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        }


        final Action ac = getAction();
        if (event.getPropertyName().equals(ActionDowngrade.ACCELERATOR_KEY))
        {
          final KeyStroke oldVal = (KeyStroke) event.getOldValue();
          if (oldVal != null)
          {
            unregisterKeyboardAction
                (oldVal);
          }
          final Object o = ac.getValue(ActionDowngrade.ACCELERATOR_KEY);
          if (o instanceof KeyStroke)
          {
            final KeyStroke k = (KeyStroke) o;
            registerKeyboardAction(ac, k, JComponent.WHEN_IN_FOCUSED_WINDOW);
          }
        }
        else if (event.getPropertyName().equals(ActionDowngrade.MNEMONIC_KEY))
        {

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