com.jidesoft.grid
Class KeyStrokeSupport

java.lang.Object
  com.jidesoft.grid.KeyStrokeSupport

public class KeyStrokeSupport
extends Object

Collection of static methods providing default implementations for KeyStroke-related tests.

Constructor Summary

KeyStrokeSupport()

Method Summary

static boolean	canProcessKeyBinding(JComponent comp, KeyStroke ks, int condition) Is the specified keystroke/condition in the specified JComponent's input and action maps?
static boolean	isModifierKey(KeyEvent e)
static boolean	isTableNavigationKey(KeyStroke ks)
static boolean	isValidKeyForDefaultTableEditor(KeyEvent e, KeyStroke ks)
static boolean	lookAheadHierarchyMightProcess(JComponent comp, KeyStroke ks) Walk up the Swing Hierarchy starting at the specified JComponent and determine if any Container is likely to be able to process a key binding for the specified keystroke.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KeyStrokeSupport

public KeyStrokeSupport()

Method Detail

lookAheadHierarchyMightProcess

public static boolean lookAheadHierarchyMightProcess(JComponent comp,
                                                     KeyStroke ks)

Walk up the Swing Hierarchy starting at the specified JComponent and determine if any Container is likely to be able to process a key binding for the specified keystroke.

Modeled after part of JComponent's protected processKeyBindings method. Instead of asking each Container to processKeyBinding, just ask if the binding is in the input/action map.

Note that if nothing in the hierarchy is interested, we can't complete the process described in JComponent.processKeyBindings by asking a JInternalFrame or Window to processKeyBindingsForAllComponents. That method is protected and would be pretty complicated to work around.

Parameters:

comp - the component to start with and work upward from

ks - the specified keystroke

Returns:

Is it in an ancestor's input/action map?

canProcessKeyBinding

public static boolean canProcessKeyBinding(JComponent comp,
                                           KeyStroke ks,
                                           int condition)

Is the specified keystroke/condition in the specified JComponent's input and action maps?

Parameters:

comp - the specified JComponent

ks - the specified keystroke

condition - the specified condition (KeyEvent.WHEN_FOCUSED, KeyEvent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, KeyEvent.WHEN_IN_FOCUSED_WINDOW)

Returns:

Is it? Not necessarily the same as what will be returned by actually executing the action, which can fail.

isValidKeyForDefaultTableEditor

public static boolean isValidKeyForDefaultTableEditor(KeyEvent e,
                                                      KeyStroke ks)

isModifierKey

public static boolean isModifierKey(KeyEvent e)

isTableNavigationKey

public static boolean isTableNavigationKey(KeyStroke ks)