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Class MenuShortcut

All Implemented Interfaces:
Serializable
public class MenuShortcut
extends Object
implements Serializable

The MenuShortcutclass represents a keyboard accelerator for a MenuItem.

Menu shortcuts are created using virtual keycodes, not characters. For example, a menu shortcut for Ctrl-a (assuming that Control is the accelerator key) would be created with code like the following:

MenuShortcut ms = new MenuShortcut(KeyEvent.VK_A, false);

or alternatively

MenuShortcut ms = new MenuShortcut(KeyEvent.getExtendedKeyCodeForChar('A'), false);

Menu shortcuts may also be constructed for a wider set of keycodes using the java.awt.event.KeyEvent.getExtendedKeyCodeForChar call. For example, a menu shortcut for "Ctrl+cyrillic ef" is created by

MenuShortcut ms = new MenuShortcut(KeyEvent.getExtendedKeyCodeForChar('?'), false);

Note that shortcuts created with a keycode or an extended keycode defined as a constant in KeyEvent work regardless of the current keyboard layout. However, a shortcut made of an extended keycode not listed in KeyEvent only work if the current keyboard layout produces a corresponding letter.

The accelerator key is platform-dependent and may be obtained via Toolkit.getMenuShortcutKeyMask().

Since:
JDK1.1

Constructors

MenuShortcut

public MenuShortcut(int key)

Constructs a new MenuShortcut for the specified virtual keycode.

Parameters:
key - the raw keycode for this MenuShortcut, as would be returned in the keyCode field of a KeyEvent if this key were pressed.
See Also:
KeyEvent

MenuShortcut

public MenuShortcut(int key,
                    boolean useShiftModifier)

Constructs a new MenuShortcut for the specified virtual keycode.

Parameters:
key - the raw keycode for this MenuShortcut, as would be returned in the keyCode field of a KeyEvent if this key were pressed.
useShiftModifier - indicates whether this MenuShortcut is invoked with the SHIFT key down.
See Also:
KeyEvent

Methods

getKey

public int getKey()

Returns the raw keycode of this MenuShortcut.

Returns:
the raw keycode of this MenuShortcut.
Since:
JDK1.1
See Also:
KeyEvent

usesShiftModifier

public boolean usesShiftModifier()

Returns whether this MenuShortcut must be invoked using the SHIFT key.

Returns:
true if this MenuShortcut must be invoked using the SHIFT key, false otherwise.
Since:
JDK1.1

equals

public boolean equals(MenuShortcut s)

Returns whether this MenuShortcut is the same as another: equality is defined to mean that both MenuShortcuts use the same key and both either use or don't use the SHIFT key.

Parameters:
s - the MenuShortcut to compare with this.
Returns:
true if this MenuShortcut is the same as another, false otherwise.
Since:
JDK1.1

equals

public boolean equals(Object obj)

Returns whether this MenuShortcut is the same as another: equality is defined to mean that both MenuShortcuts use the same key and both either use or don't use the SHIFT key.

Overrides:
equals in class Object
Parameters:
obj - the Object to compare with this.
Returns:
true if this MenuShortcut is the same as another, false otherwise.
Since:
1.2
See Also:
Object.hashCode(), HashMap

hashCode

public int hashCode()

Returns the hashcode for this MenuShortcut.

Overrides:
hashCode in class Object
Returns:
the hashcode for this MenuShortcut.
Since:
1.2
See Also:
Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

toString

public String toString()

Returns an internationalized description of the MenuShortcut.

Overrides:
toString in class Object
Returns:
a string representation of this MenuShortcut.
Since:
JDK1.1

paramString

protected String paramString()

Returns the parameter string representing the state of this MenuShortcut. This string is useful for debugging.

Returns:
the parameter string of this MenuShortcut.
Since:
JDK1.1

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Documentation extracted from Debian's OpenJDK Development Kit package.
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