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javax.swing
Class JMenuItem
java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.AbstractButton
javax.swing.JMenuItem
-
All Implemented Interfaces:
-
ImageObserver
,
ItemSelectable
,
MenuContainer
,
Serializable
,
Accessible
,
MenuElement
,
SwingConstants
-
Direct Known Subclasses:
-
JCheckBoxMenuItem
,
JMenu
,
JRadioButtonMenuItem
-
public class JMenuItem
- extends AbstractButton
- implements Accessible, MenuElement
An implementation of an item in a menu. A menu item is essentially a button sitting in a list. When the user selects the "button", the action associated with the menu item is performed. A JMenuItem contained in a JPopupMenu performs exactly that function.
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 documentation and for examples, see
How to Use Menus
in The Java Tutorial.
Warning: Swing is not thread safe. For more information see
Swing's Threading Policy
.
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
.
-
See Also:
-
JPopupMenu
,
JMenu
,
JCheckBoxMenuItem
,
JRadioButtonMenuItem
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
|
Constructor Summary
|
JMenuItem
()
Creates a JMenuItem with no set text or icon. |
JMenuItem
(
Action
a)
Creates a menu item whose properties are taken from the specified Action. |
JMenuItem
(
Icon
icon)
Creates a JMenuItem with the specified icon. |
JMenuItem
(
String
text)
Creates a JMenuItem with the specified text. |
JMenuItem
(
String
text,
Icon
icon)
Creates a JMenuItem with the specified text and icon. |
JMenuItem
(
String
text, int mnemonic)
Creates a JMenuItem with the specified text and keyboard mnemonic. |
Method Summary
|
protected void
|
actionPropertyChanged
(
Action
action,
String
Updates the button's state in response to property changes in the associated action.
|
void |
addMenuDragMouseListener
(
MenuDragMouseListener
l)
Adds a MenuDragMouseListener to the menu item. |
void |
addMenuKeyListener
(
MenuKeyListener
l)
Adds a MenuKeyListener to the menu item. |
protected void |
configurePropertiesFromAction
(
Action
a)
Sets the properties on this button to match those in the specified Action. |
protected void |
fireMenuDragMouseDragged
(
MenuDragMouseEvent
event)
Notifies all listeners that have registered interest for notification on this event type. |
protected void |
fireMenuDragMouseEntered
(
MenuDragMouseEvent
event)
Notifies all listeners that have registered interest for notification on this event type. |
protected void |
fireMenuDragMouseExited
(
MenuDragMouseEvent
event)
Notifies all listeners that have registered interest for notification on this event type. |
protected void |
fireMenuDragMouseReleased
(
MenuDragMouseEvent
event)
Notifies all listeners that have registered interest for notification on this event type. |
protected void |
fireMenuKeyPressed
(
MenuKeyEvent
event)
Notifies all listeners that have registered interest for notification on this event type. |
protected void |
fireMenuKeyReleased
(
MenuKeyEvent
event)
Notifies all listeners that have registered interest for notification on this event type. |
protected void |
fireMenuKeyTyped
(
MenuKeyEvent
event)
Notifies all listeners that have registered interest for notification on this event type. |
KeyStroke
|
getAccelerator
()
Returns the KeyStroke which serves as an accelerator for the menu item. |
AccessibleContext
|
getAccessibleContext
()
Returns the AccessibleContext associated with this JMenuItem. |
Component
|
getComponent
()
Returns the java.awt.Component used to paint this object. |
MenuDragMouseListener
[] |
getMenuDragMouseListeners
()
Returns an array of all the MenuDragMouseListeners added to this JMenuItem with addMenuDragMouseListener(). |
MenuKeyListener
[] |
getMenuKeyListeners
()
Returns an array of all the MenuKeyListeners added to this JMenuItem with addMenuKeyListener(). |
MenuElement
[] |
getSubElements
()
This method returns an array containing the sub-menu components for this menu component. |
String
|
getUIClassID
()
Returns the suffix used to construct the name of the L&F class used to render this component. |
protected void |
init
(
String
text,
Icon
icon)
Initializes the menu item with the specified text and icon. |
boolean |
isArmed
()
Returns whether the menu item is "armed". |
void |
menuSelectionChanged
(boolean isIncluded)
Called by the MenuSelectionManager when the MenuElement is selected or unselected. |
protected
String
|
paramString
()
Returns a string representation of this JMenuItem. |
void |
processKeyEvent
(
KeyEvent
e,
MenuElement
[] path,
MenuSelectionManager
manager)
Processes a key event forwarded from the MenuSelectionManager and changes the menu selection, if necessary, by using MenuSelectionManager's API. |
void |
processMenuDragMouseEvent
(
MenuDragMouseEvent
e)
Handles mouse drag in a menu. |
void |
processMenuKeyEvent
(
MenuKeyEvent
e)
Handles a keystroke in a menu. |
void |
processMouseEvent
(
MouseEvent
e,
MenuElement
[] path,
MenuSelectionManager
manager)
Processes a mouse event forwarded from the MenuSelectionManager and changes the menu selection, if necessary, by using the MenuSelectionManager's API. |
void |
removeMenuDragMouseListener
(
MenuDragMouseListener
l)
Removes a MenuDragMouseListener from the menu item. |
void |
removeMenuKeyListener
(
MenuKeyListener
l)
Removes a MenuKeyListener from the menu item. |
void |
setAccelerator
(
KeyStroke
keyStroke)
Sets the key combination which invokes the menu item's action listeners without navigating the menu hierarchy. |
void |
setArmed
(boolean b)
Identifies the menu item as "armed". |
void |
setEnabled
(boolean b)
Enables or disables the menu item. |
void
|
setModel
(
ButtonModel
Sets the model that this button represents.
|
void |
setUI
(
MenuItemUI
ui)
Sets the look and feel object that renders this component. |
void |
updateUI
()
Resets the UI property with a value from the current look and feel. |
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
,
getSelectedObjects
,
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
,
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
|
JMenuItem
public JMenuItem()
-
Creates a JMenuItem with no set text or icon.
JMenuItem
public JMenuItem(Icon icon)
-
Creates a JMenuItem with the specified icon.
-
Parameters:
-
icon - the icon of the JMenuItem
JMenuItem
public JMenuItem(String text)
-
Creates a JMenuItem with the specified text.
-
Parameters:
-
text - the text of the JMenuItem
JMenuItem
public JMenuItem(Action a)
-
Creates a menu item whose properties are taken from the specified Action.
-
Parameters:
-
a - the action of the JMenuItem
-
Since:
-
1.3
JMenuItem
public JMenuItem(String text,
Icon icon)
-
Creates a JMenuItem with the specified text and icon.
-
Parameters:
-
text - the text of the JMenuItem
-
icon - the icon of the JMenuItem
JMenuItem
public JMenuItem(String text,
int mnemonic)
-
Creates a JMenuItem with the specified text and keyboard mnemonic.
-
Parameters:
-
text - the text of the JMenuItem
-
mnemonic - the keyboard mnemonic for the JMenuItem
setModel
public void
setModel
(
ButtonModel
newModel)
-
Sets the model that this button represents.
-
-
Overrides:
-
setModel
in class
AbstractButton
-
-
Parameters:
-
newModel - the new ButtonModel
-
See Also:
-
AbstractButton.getModel()
init
protected void init(String text,
Icon icon)
-
Initializes the menu item with the specified text and icon.
-
-
Overrides:
-
init
in class
AbstractButton
-
-
Parameters:
-
text - the text of the JMenuItem
-
icon - the icon of the JMenuItem
setUI
public void setUI(MenuItemUI ui)
-
Sets the look and feel object that renders this component.
-
-
-
Parameters:
-
ui - the JMenuItemUI L&F object
-
See Also:
-
UIDefaults.getUI(javax.swing.JComponent)
updateUI
public void updateUI()
-
Resets the UI property with a value from the current look and feel.
-
-
Overrides:
-
updateUI
in class
AbstractButton
-
-
See Also:
-
JComponent.updateUI()
getUIClassID
public String getUIClassID()
-
Returns the suffix used to construct the name of the L&F class used to render this component.
-
-
Overrides:
-
getUIClassID
in class
JComponent
-
-
Returns:
-
the string "MenuItemUI"
-
See Also:
-
JComponent.getUIClassID()
,
UIDefaults.getUI(javax.swing.JComponent)
setArmed
public void setArmed(boolean b)
-
Identifies the menu item as "armed". If the mouse button is released while it is over this item, the menu's action event will fire. If the mouse button is released elsewhere, the event will not fire and the menu item will be disarmed.
-
-
-
Parameters:
-
b - true to arm the menu item so it can be selected
isArmed
public boolean isArmed()
-
Returns whether the menu item is "armed".
-
-
-
Returns:
-
true if the menu item is armed, and it can be selected
-
See Also:
-
setArmed(boolean)
setEnabled
public void setEnabled(boolean b)
-
Enables or disables the menu item.
-
-
Overrides:
-
setEnabled
in class
AbstractButton
-
-
Parameters:
-
b - true to enable the item
-
See Also:
-
Component.isEnabled()
,
Component.isLightweight()
setAccelerator
public void setAccelerator(KeyStroke keyStroke)
-
Sets the key combination which invokes the menu item's action listeners without navigating the menu hierarchy. It is the UI's responsibility to install the correct action. Note that when the keyboard accelerator is typed, it will work whether or not the menu is currently displayed.
-
-
-
Parameters:
-
keyStroke - the KeyStroke which will serve as an accelerator
getAccelerator
public KeyStroke getAccelerator()
-
Returns the KeyStroke which serves as an accelerator for the menu item.
-
-
-
Returns:
-
a KeyStroke object identifying the accelerator key
configurePropertiesFromAction
protected void configurePropertiesFromAction(Action a)
-
Sets the properties on this button to match those in the specified Action. Refer to
Swing Components Supporting Action
for more details as to which properties this sets.
-
-
Overrides:
-
configurePropertiesFromAction
in class
AbstractButton
-
-
Parameters:
-
a - the Action from which to get the properties, or null
-
Since:
-
1.3
-
See Also:
-
Action
,
AbstractButton.setAction(javax.swing.Action)
actionPropertyChanged
protected void
actionPropertyChanged
(
Action
action,
String
propertyName)
-
Updates the button's state in response to property changes in the associated action. This method is invoked from the PropertyChangeListener returned from createActionPropertyChangeListener. Subclasses do not normally need to invoke this. Subclasses that support additional Action properties should override this and configurePropertiesFromAction.
Refer to the table at
Swing Components Supporting Action
for a list of the properties this method sets.
-
-
Overrides:
-
actionPropertyChanged
in class
AbstractButton
-
-
Parameters:
-
action - the Action associated with this button
-
propertyName - the name of the property that changed
-
Since:
-
1.6
-
See Also:
-
Action
,
AbstractButton.configurePropertiesFromAction(javax.swing.Action)
processMouseEvent
public void processMouseEvent(MouseEvent e,
MenuElement[] path,
MenuSelectionManager manager)
-
Processes a mouse event forwarded from the MenuSelectionManager and changes the menu selection, if necessary, by using the MenuSelectionManager's API.
Note: you do not have to forward the event to sub-components. This is done automatically by the MenuSelectionManager.
-
-
Specified by:
-
processMouseEvent
in interface
MenuElement
-
-
Parameters:
-
e - a MouseEvent
-
path - the MenuElement path array
-
manager - the MenuSelectionManager
processKeyEvent
public void processKeyEvent(KeyEvent e,
MenuElement[] path,
MenuSelectionManager manager)
-
Processes a key event forwarded from the MenuSelectionManager and changes the menu selection, if necessary, by using MenuSelectionManager's API.
Note: you do not have to forward the event to sub-components. This is done automatically by the MenuSelectionManager.
-
-
Specified by:
-
processKeyEvent
in interface
MenuElement
-
-
Parameters:
-
e - a KeyEvent
-
path - the MenuElement path array
-
manager - the MenuSelectionManager
processMenuDragMouseEvent
public void processMenuDragMouseEvent(MenuDragMouseEvent e)
-
Handles mouse drag in a menu.
-
-
-
Parameters:
-
e - a MenuDragMouseEvent object
processMenuKeyEvent
public void processMenuKeyEvent(MenuKeyEvent e)
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Handles a keystroke in a menu.
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Parameters:
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e - a MenuKeyEvent object
fireMenuDragMouseEntered
protected void fireMenuDragMouseEntered(MenuDragMouseEvent event)
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Notifies all listeners that have registered interest for notification on this event type.
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Parameters:
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event - a MenuMouseDragEvent
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See Also:
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EventListenerList
fireMenuDragMouseExited
protected void fireMenuDragMouseExited(MenuDragMouseEvent event)
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Notifies all listeners that have registered interest for notification on this event type.
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Parameters:
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event - a MenuDragMouseEvent
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See Also:
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EventListenerList
fireMenuDragMouseDragged
protected void fireMenuDragMouseDragged(MenuDragMouseEvent event)
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Notifies all listeners that have registered interest for notification on this event type.
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Parameters:
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event - a MenuDragMouseEvent
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See Also:
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EventListenerList
fireMenuDragMouseReleased
protected void fireMenuDragMouseReleased(MenuDragMouseEvent event)
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Notifies all listeners that have registered interest for notification on this event type.
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Parameters:
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event - a MenuDragMouseEvent
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See Also:
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EventListenerList
fireMenuKeyPressed
protected void fireMenuKeyPressed(MenuKeyEvent event)
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Notifies all listeners that have registered interest for notification on this event type.
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Parameters:
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event - a MenuKeyEvent
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See Also:
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EventListenerList
fireMenuKeyReleased
protected void fireMenuKeyReleased(MenuKeyEvent event)
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Notifies all listeners that have registered interest for notification on this event type.
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Parameters:
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event - a MenuKeyEvent
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See Also:
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EventListenerList
fireMenuKeyTyped
protected void fireMenuKeyTyped(MenuKeyEvent event)
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Notifies all listeners that have registered interest for notification on this event type.
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Parameters:
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event - a MenuKeyEvent
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See Also:
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EventListenerList
menuSelectionChanged
public void menuSelectionChanged(boolean isIncluded)
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Called by the MenuSelectionManager when the MenuElement is selected or unselected.
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Specified by:
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menuSelectionChanged
in interface
MenuElement
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Parameters:
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isIncluded - true if this menu item is on the part of the menu path that changed, false if this menu is part of the a menu path that changed, but this particular part of that path is still the same
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See Also:
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MenuSelectionManager.setSelectedPath(MenuElement[])
getSubElements
public MenuElement[] getSubElements()
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This method returns an array containing the sub-menu components for this menu component.
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Specified by:
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getSubElements
in interface
MenuElement
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Returns:
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an array of MenuElements
getComponent
public Component getComponent()
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Returns the java.awt.Component used to paint this object. The returned component will be used to convert events and detect if an event is inside a menu component.
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Specified by:
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getComponent
in interface
MenuElement
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Returns:
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the Component that paints this menu item
addMenuDragMouseListener
public void addMenuDragMouseListener(MenuDragMouseListener l)
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Adds a MenuDragMouseListener to the menu item.
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Parameters:
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l - the MenuDragMouseListener to be added
removeMenuDragMouseListener
public void removeMenuDragMouseListener(MenuDragMouseListener l)
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Removes a MenuDragMouseListener from the menu item.
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Parameters:
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l - the MenuDragMouseListener to be removed
getMenuDragMouseListeners
public MenuDragMouseListener[] getMenuDragMouseListeners()
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Returns an array of all the MenuDragMouseListeners added to this JMenuItem with addMenuDragMouseListener().
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Returns:
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all of the MenuDragMouseListeners added or an empty array if no listeners have been added
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Since:
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1.4
addMenuKeyListener
public void addMenuKeyListener(MenuKeyListener l)
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Adds a MenuKeyListener to the menu item.
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Parameters:
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l - the MenuKeyListener to be added
removeMenuKeyListener
public void removeMenuKeyListener(MenuKeyListener l)
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Removes a MenuKeyListener from the menu item.
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Parameters:
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l - the MenuKeyListener to be removed
getMenuKeyListeners
public MenuKeyListener[] getMenuKeyListeners()
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Returns an array of all the MenuKeyListeners added to this JMenuItem with addMenuKeyListener().
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Returns:
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all of the MenuKeyListeners added or an empty array if no listeners have been added
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Since:
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1.4
paramString
protected String paramString()
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Returns a string representation of this JMenuItem. 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.
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Overrides:
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paramString
in class
AbstractButton
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Returns:
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a string representation of this JMenuItem
getAccessibleContext
public AccessibleContext getAccessibleContext()
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Returns the AccessibleContext associated with this JMenuItem. For JMenuItems, the AccessibleContext takes the form of an AccessibleJMenuItem. A new AccessibleJMenuItme instance is created if necessary.
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Specified by:
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getAccessibleContext
in interface
Accessible
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Overrides:
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getAccessibleContext
in class
JComponent
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Returns:
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an AccessibleJMenuItem that serves as the AccessibleContext of this JMenuItem