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javax.swing
Class JCheckBoxMenuItem
java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.AbstractButton
javax.swing.JMenuItem
javax.swing.JCheckBoxMenuItem
-
All Implemented Interfaces:
-
ImageObserver
,
ItemSelectable
,
MenuContainer
,
Serializable
,
Accessible
,
MenuElement
,
SwingConstants
-
public class JCheckBoxMenuItem
- extends JMenuItem
- implements SwingConstants, Accessible
A menu item that can be selected or deselected. If selected, the menu item typically appears with a checkmark next to it. If unselected or deselected, the menu item appears without a checkmark. Like a regular menu item, a check box menu item can have either text or a graphic icon associated with it, or both.
Either isSelected/setSelected or getState/setState can be used to determine/specify the menu item's selection state. The preferred methods are isSelected and setSelected, which work for all menus and buttons. The getState and setState methods exist for compatibility with other component sets.
Menu items can be configured, and to some degree controlled, by
Action
s. Using an Action with a menu item has many benefits beyond directly configuring a menu item. Refer to
Swing Components Supporting Action
for more details, and you can find more information in
How to Use Actions
, a section in The Java Tutorial.
For further information and examples of using check box menu items, see
How to Use Menus
, a section in The Java Tutorial.
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
TM
has been added to the java.beans package. Please see
XMLEncoder
.
Nested Class Summary
|
protected class |
JCheckBoxMenuItem.AccessibleJCheckBoxMenuItem
This class implements accessibility support for the JCheckBoxMenuItem class. |
Nested classes/interfaces inherited from class javax.swing.
JMenuItem
|
JMenuItem.AccessibleJMenuItem
|
Nested classes/interfaces inherited from class javax.swing.
AbstractButton
|
AbstractButton.AccessibleAbstractButton
,
AbstractButton.ButtonChangeListener
|
Nested classes/interfaces inherited from class javax.swing.
JComponent
|
JComponent.AccessibleJComponent
|
Nested classes/interfaces inherited from class java.awt.
Container
|
Container.AccessibleAWTContainer
|
Fields inherited from class javax.swing.
AbstractButton
|
actionListener
,
BORDER_PAINTED_CHANGED_PROPERTY
,
changeEvent
,
changeListener
,
CONTENT_AREA_FILLED_CHANGED_PROPERTY
,
DISABLED_ICON_CHANGED_PROPERTY
,
DISABLED_SELECTED_ICON_CHANGED_PROPERTY
,
FOCUS_PAINTED_CHANGED_PROPERTY
,
HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY
,
HORIZONTAL_TEXT_POSITION_CHANGED_PROPERTY
,
ICON_CHANGED_PROPERTY
,
itemListener
,
MARGIN_CHANGED_PROPERTY
,
MNEMONIC_CHANGED_PROPERTY
,
model
,
MODEL_CHANGED_PROPERTY
,
PRESSED_ICON_CHANGED_PROPERTY
,
ROLLOVER_ENABLED_CHANGED_PROPERTY
,
ROLLOVER_ICON_CHANGED_PROPERTY
,
ROLLOVER_SELECTED_ICON_CHANGED_PROPERTY
,
SELECTED_ICON_CHANGED_PROPERTY
,
TEXT_CHANGED_PROPERTY
,
VERTICAL_ALIGNMENT_CHANGED_PROPERTY
,
VERTICAL_TEXT_POSITION_CHANGED_PROPERTY
|
Fields inherited from interface javax.swing.
SwingConstants
|
BOTTOM
,
CENTER
,
EAST
,
HORIZONTAL
,
LEADING
,
LEFT
,
NEXT
,
NORTH
,
NORTH_EAST
,
NORTH_WEST
,
PREVIOUS
,
RIGHT
,
SOUTH
,
SOUTH_EAST
,
SOUTH_WEST
,
TOP
,
TRAILING
,
VERTICAL
,
WEST
|
Fields inherited from interface java.awt.image.
ImageObserver
|
ABORT
,
ALLBITS
,
ERROR
,
FRAMEBITS
,
HEIGHT
,
PROPERTIES
,
SOMEBITS
,
WIDTH
|
Constructor Summary
|
JCheckBoxMenuItem
()
Creates an initially unselected check box menu item with no set text or icon. |
JCheckBoxMenuItem
(
Action
a)
Creates a menu item whose properties are taken from the Action supplied. |
JCheckBoxMenuItem
(
Icon
icon)
Creates an initially unselected check box menu item with an icon. |
JCheckBoxMenuItem
(
String
text)
Creates an initially unselected check box menu item with text. |
JCheckBoxMenuItem
(
String
text, boolean b)
Creates a check box menu item with the specified text and selection state. |
JCheckBoxMenuItem
(
String
text,
Icon
icon)
Creates an initially unselected check box menu item with the specified text and icon. |
JCheckBoxMenuItem
(
String
text,
Icon
icon, boolean b)
Creates a check box menu item with the specified text, icon, and selection state. |
Method Summary
|
AccessibleContext
|
getAccessibleContext
()
Gets the AccessibleContext associated with this JCheckBoxMenuItem. |
Object
[] |
getSelectedObjects
()
Returns an array (length 1) containing the check box menu item label or null if the check box is not selected. |
boolean |
getState
()
Returns the selected-state of the item. |
String
|
getUIClassID
()
Returns the name of the L&F class that renders this component. |
protected
String
|
paramString
()
Returns a string representation of this JCheckBoxMenuItem. |
void |
setState
(boolean b)
Sets the selected-state of the item. |
Methods inherited from class javax.swing.
JMenuItem
|
addMenuDragMouseListener
,
addMenuKeyListener
,
configurePropertiesFromAction
,
createActionPropertyChangeListener
,
fireMenuDragMouseDragged
,
fireMenuDragMouseEntered
,
fireMenuDragMouseExited
,
fireMenuDragMouseReleased
,
fireMenuKeyPressed
,
fireMenuKeyReleased
,
fireMenuKeyTyped
,
getAccelerator
,
getComponent
,
getMenuDragMouseListeners
,
getMenuKeyListeners
,
getSubElements
,
init
,
isArmed
,
menuSelectionChanged
,
processKeyEvent
,
processMenuDragMouseEvent
,
processMenuKeyEvent
,
processMouseEvent
,
removeMenuDragMouseListener
,
removeMenuKeyListener
,
setAccelerator
,
setArmed
,
setEnabled
,
setUI
,
updateUI
|
Methods inherited from class javax.swing.
AbstractButton
|
addActionListener
,
addChangeListener
,
addImpl
,
addItemListener
,
checkHorizontalKey
,
checkVerticalKey
,
createActionListener
,
createActionPropertyChangeListener
,
createChangeListener
,
createItemListener
,
doClick
,
doClick
,
fireActionPerformed
,
fireItemStateChanged
,
fireStateChanged
,
getAction
,
getActionCommand
,
getActionListeners
,
getChangeListeners
,
getDisabledIcon
,
getDisabledSelectedIcon
,
getDisplayedMnemonicIndex
,
getHideActionText
,
getHorizontalAlignment
,
getHorizontalTextPosition
,
getIcon
,
getIconTextGap
,
getItemListeners
,
getLabel
,
getMargin
,
getMnemonic
,
getModel
,
getMultiClickThreshhold
,
getPressedIcon
,
getRolloverIcon
,
getRolloverSelectedIcon
,
getSelectedIcon
,
getText
,
getUI
,
getVerticalAlignment
,
getVerticalTextPosition
,
imageUpdate
,
isBorderPainted
,
isContentAreaFilled
,
isFocusPainted
,
isRolloverEnabled
,
isSelected
,
paintBorder
,
removeActionListener
,
removeChangeListener
,
removeItemListener
,
removeNotify
,
setAction
,
setActionCommand
,
setBorderPainted
,
setContentAreaFilled
,
setDisabledIcon
,
setDisabledSelectedIcon
,
setDisplayedMnemonicIndex
,
setFocusPainted
,
setHideActionText
,
setHorizontalAlignment
,
setHorizontalTextPosition
,
setIcon
,
setIconTextGap
,
setLabel
,
setLayout
,
setMargin
,
setMnemonic
,
setMnemonic
,
setModel
,
setMultiClickThreshhold
,
setPressedIcon
,
setRolloverEnabled
,
setRolloverIcon
,
setRolloverSelectedIcon
,
setSelected
,
setSelectedIcon
,
setText
,
setUI
,
setVerticalAlignment
,
setVerticalTextPosition
|
Methods inherited from class javax.swing.
JComponent
|
addAncestorListener
,
addNotify
,
addVetoableChangeListener
,
computeVisibleRect
,
contains
,
createToolTip
,
disable
,
enable
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
fireVetoableChange
,
getActionForKeyStroke
,
getActionMap
,
getAlignmentX
,
getAlignmentY
,
getAncestorListeners
,
getAutoscrolls
,
getBaseline
,
getBaselineResizeBehavior
,
getBorder
,
getBounds
,
getClientProperty
,
getComponentGraphics
,
getComponentPopupMenu
,
getConditionForKeyStroke
,
getDebugGraphicsOptions
,
getDefaultLocale
,
getFontMetrics
,
getGraphics
,
getHeight
,
getInheritsPopupMenu
,
getInputMap
,
getInputMap
,
getInputVerifier
,
getInsets
,
getInsets
,
getListeners
,
getLocation
,
getMaximumSize
,
getMinimumSize
,
getNextFocusableComponent
,
getPopupLocation
,
getPreferredSize
,
getRegisteredKeyStrokes
,
getRootPane
,
getSize
,
getToolTipLocation
,
getToolTipText
,
getToolTipText
,
getTopLevelAncestor
,
getTransferHandler
,
getVerifyInputWhenFocusTarget
,
getVetoableChangeListeners
,
getVisibleRect
,
getWidth
,
getX
,
getY
,
grabFocus
,
isDoubleBuffered
,
isLightweightComponent
,
isManagingFocus
,
isOpaque
,
isOptimizedDrawingEnabled
,
isPaintingForPrint
,
isPaintingTile
,
isRequestFocusEnabled
,
isValidateRoot
,
paint
,
paintChildren
,
paintComponent
,
paintImmediately
,
paintImmediately
,
print
,
printAll
,
printBorder
,
printChildren
,
printComponent
,
processComponentKeyEvent
,
processKeyBinding
,
processKeyEvent
,
processMouseEvent
,
processMouseMotionEvent
,
putClientProperty
,
registerKeyboardAction
,
registerKeyboardAction
,
removeAncestorListener
,
removeNotify
,
removeVetoableChangeListener
,
repaint
,
repaint
,
requestDefaultFocus
,
requestFocus
,
requestFocus
,
requestFocusInWindow
,
requestFocusInWindow
,
resetKeyboardActions
,
reshape
,
revalidate
,
scrollRectToVisible
,
setActionMap
,
setAlignmentX
,
setAlignmentY
,
setAutoscrolls
,
setBackground
,
setBorder
,
setComponentPopupMenu
,
setDebugGraphicsOptions
,
setDefaultLocale
,
setDoubleBuffered
,
setFocusTraversalKeys
,
setFont
,
setForeground
,
setInheritsPopupMenu
,
setInputMap
,
setInputVerifier
,
setMaximumSize
,
setMinimumSize
,
setNextFocusableComponent
,
setOpaque
,
setPreferredSize
,
setRequestFocusEnabled
,
setToolTipText
,
setTransferHandler
,
setUI
,
setVerifyInputWhenFocusTarget
,
setVisible
,
unregisterKeyboardAction
,
update
|
Methods inherited from class java.awt.
Container
|
add
,
add
,
add
,
add
,
add
,
addContainerListener
,
addPropertyChangeListener
,
addPropertyChangeListener
,
applyComponentOrientation
,
areFocusTraversalKeysSet
,
countComponents
,
deliverEvent
,
doLayout
,
findComponentAt
,
findComponentAt
,
getComponent
,
getComponentAt
,
getComponentAt
,
getComponentCount
,
getComponents
,
getComponentZOrder
,
getContainerListeners
,
getFocusTraversalKeys
,
getFocusTraversalPolicy
,
getLayout
,
getMousePosition
,
insets
,
invalidate
,
isAncestorOf
,
isFocusCycleRoot
,
isFocusCycleRoot
,
isFocusTraversalPolicyProvider
,
isFocusTraversalPolicySet
,
layout
,
list
,
list
,
locate
,
minimumSize
,
paintComponents
,
preferredSize
,
printComponents
,
processContainerEvent
,
processEvent
,
remove
,
remove
,
removeAll
,
removeContainerListener
,
setComponentZOrder
,
setFocusCycleRoot
,
setFocusTraversalPolicy
,
setFocusTraversalPolicyProvider
,
transferFocusBackward
,
transferFocusDownCycle
,
validate
,
validateTree
|
Methods inherited from class java.awt.
Component
|
action
,
add
,
addComponentListener
,
addFocusListener
,
addHierarchyBoundsListener
,
addHierarchyListener
,
addInputMethodListener
,
addKeyListener
,
addMouseListener
,
addMouseMotionListener
,
addMouseWheelListener
,
bounds
,
checkImage
,
checkImage
,
coalesceEvents
,
contains
,
createImage
,
createImage
,
createVolatileImage
,
createVolatileImage
,
disableEvents
,
dispatchEvent
,
enable
,
enableEvents
,
enableInputMethods
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
getBackground
,
getBounds
,
getColorModel
,
getComponentListeners
,
getComponentOrientation
,
getCursor
,
getDropTarget
,
getFocusCycleRootAncestor
,
getFocusListeners
,
getFocusTraversalKeysEnabled
,
getFont
,
getForeground
,
getGraphicsConfiguration
,
getHierarchyBoundsListeners
,
getHierarchyListeners
,
getIgnoreRepaint
,
getInputContext
,
getInputMethodListeners
,
getInputMethodRequests
,
getKeyListeners
,
getLocale
,
getLocation
,
getLocationOnScreen
,
getMouseListeners
,
getMouseMotionListeners
,
getMousePosition
,
getMouseWheelListeners
,
getName
,
getParent
,
getPeer
,
getPropertyChangeListeners
,
getPropertyChangeListeners
,
getSize
,
getToolkit
,
getTreeLock
,
gotFocus
,
handleEvent
,
hasFocus
,
hide
,
inside
,
isBackgroundSet
,
isCursorSet
,
isDisplayable
,
isEnabled
,
isFocusable
,
isFocusOwner
,
isFocusTraversable
,
isFontSet
,
isForegroundSet
,
isLightweight
,
isMaximumSizeSet
,
isMinimumSizeSet
,
isPreferredSizeSet
,
isShowing
,
isValid
,
isVisible
,
keyDown
,
keyUp
,
list
,
list
,
list
,
location
,
lostFocus
,
mouseDown
,
mouseDrag
,
mouseEnter
,
mouseExit
,
mouseMove
,
mouseUp
,
move
,
nextFocus
,
paintAll
,
postEvent
,
prepareImage
,
prepareImage
,
processComponentEvent
,
processFocusEvent
,
processHierarchyBoundsEvent
,
processHierarchyEvent
,
processInputMethodEvent
,
processMouseWheelEvent
,
remove
,
removeComponentListener
,
removeFocusListener
,
removeHierarchyBoundsListener
,
removeHierarchyListener
,
removeInputMethodListener
,
removeKeyListener
,
removeMouseListener
,
removeMouseMotionListener
,
removeMouseWheelListener
,
removePropertyChangeListener
,
removePropertyChangeListener
,
repaint
,
repaint
,
repaint
,
resize
,
resize
,
setBounds
,
setBounds
,
setComponentOrientation
,
setCursor
,
setDropTarget
,
setFocusable
,
setFocusTraversalKeysEnabled
,
setIgnoreRepaint
,
setLocale
,
setLocation
,
setLocation
,
setName
,
setSize
,
setSize
,
show
,
show
,
size
,
toString
,
transferFocus
,
transferFocusUpCycle
|
JCheckBoxMenuItem
public JCheckBoxMenuItem()
-
Creates an initially unselected check box menu item with no set text or icon.
JCheckBoxMenuItem
public JCheckBoxMenuItem(Icon icon)
-
Creates an initially unselected check box menu item with an icon.
-
Parameters:
-
icon - the icon of the CheckBoxMenuItem.
JCheckBoxMenuItem
public JCheckBoxMenuItem(String text)
-
Creates an initially unselected check box menu item with text.
-
Parameters:
-
text - the text of the CheckBoxMenuItem
JCheckBoxMenuItem
public JCheckBoxMenuItem(Action a)
-
Creates a menu item whose properties are taken from the Action supplied.
-
Since:
-
1.3
JCheckBoxMenuItem
public JCheckBoxMenuItem(String text,
Icon icon)
-
Creates an initially unselected check box menu item with the specified text and icon.
-
Parameters:
-
text - the text of the CheckBoxMenuItem
-
icon - the icon of the CheckBoxMenuItem
JCheckBoxMenuItem
public JCheckBoxMenuItem(String text,
boolean b)
-
Creates a check box menu item with the specified text and selection state.
-
Parameters:
-
text - the text of the check box menu item.
-
b - the selected state of the check box menu item
JCheckBoxMenuItem
public JCheckBoxMenuItem(String text,
Icon icon,
boolean b)
-
Creates a check box menu item with the specified text, icon, and selection state.
-
Parameters:
-
text - the text of the check box menu item
-
icon - the icon of the check box menu item
-
b - the selected state of the check box menu item
getUIClassID
public String getUIClassID()
-
Returns the name of the L&F class that renders this component.
-
-
Overrides:
-
getUIClassID
in class
JMenuItem
-
-
Returns:
-
"CheckBoxMenuItemUI"
-
See Also:
-
JComponent.getUIClassID()
,
UIDefaults.getUI(javax.swing.JComponent)
getState
public boolean getState()
-
Returns the selected-state of the item. This method exists for AWT compatibility only. New code should use isSelected() instead.
-
-
-
Returns:
-
true if the item is selected
setState
public void setState(boolean b)
-
Sets the selected-state of the item. This method exists for AWT compatibility only. New code should use setSelected() instead.
-
-
-
Parameters:
-
b - a boolean value indicating the item's selected-state, where true=selected
getSelectedObjects
public Object[] getSelectedObjects()
-
Returns an array (length 1) containing the check box menu item label or null if the check box is not selected.
-
-
Specified by:
-
getSelectedObjects
in interface
ItemSelectable
-
Overrides:
-
getSelectedObjects
in class
AbstractButton
-
-
Returns:
-
an array containing one Object -- the text of the menu item -- if the item is selected; otherwise null
paramString
protected String paramString()
-
Returns a string representation of this JCheckBoxMenuItem. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null.
-
-
Overrides:
-
paramString
in class
JMenuItem
-
-
Returns:
-
a string representation of this JCheckBoxMenuItem.
getAccessibleContext
public AccessibleContext getAccessibleContext()
-
Gets the AccessibleContext associated with this JCheckBoxMenuItem. For JCheckBoxMenuItems, the AccessibleContext takes the form of an AccessibleJCheckBoxMenuItem. A new AccessibleJCheckBoxMenuItem instance is created if necessary.
-
-
Specified by:
-
getAccessibleContext
in interface
Accessible
-
Overrides:
-
getAccessibleContext
in class
JMenuItem
-
-
Returns:
-
an AccessibleJCheckBoxMenuItem that serves as the AccessibleContext of this AccessibleJCheckBoxMenuItem