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Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class JSeparator - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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javax.swing
Class JSeparator

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--javax.swing.JComponent
                    |
                    +--javax.swing.JSeparator

Direct Known Subclasses:

JPopupMenu.Separator, JToolBar.Separator

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public class JSeparator

extends JComponent

implements SwingConstants, Accessible

An implementation of a Menu Separator -- a divider between menu items that breaks them up into logical groupings.

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. A future release of Swing will provide support for long term persistence.

See Also:

Serialized Form

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Inner Class Summary
protected  class	JSeparator.AccessibleJSeparator           The class used to obtain the accessible role for this object.

 

Inner classes inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

 

Fields inherited from class javax.swing.JComponent

accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

 

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

 

Fields inherited from interface javax.swing.SwingConstants

BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NORTH, NORTH_EAST, NORTH_WEST, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST

 

Constructor Summary

JSeparator()           Create a new horizontal separator.

JSeparator(int orientation)           Create a new separator with the specified horizontal or vertical orientation.

 

Method Summary
AccessibleContext	getAccessibleContext()           Get the AccessibleContext associated with this JComponent
int	getOrientation()           Returns the orientation of this separator.
SeparatorUI	getUI()           Returns the L&F object that renders this component.
String	getUIClassID()           Returns the name of the L&F class that renders this component.
boolean	isFocusTraversable()           Identifies whether or not this component can receive the focus.
protected  String	paramString()           Returns a string representation of this JSeparator.
void	setOrientation(int orientation)           Sets the orientation of the separator.
void	setUI(SeparatorUI ui)           Sets the L&F object that renders this component.
void	updateUI()           Notification from the UIFactory that the L&F has changed.

 

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getAlignmentX, getAlignmentY, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getGraphics, getHeight, getInsets, getInsets, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getVisibleRect, getWidth, getX, getY, grabFocus, hasFocus, isDoubleBuffered, isFocusCycleRoot, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, processComponentKeyEvent, processFocusEvent, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setDebugGraphicsOptions, setDoubleBuffered, setEnabled, setFont, setForeground, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setUI, setVisible, unregisterKeyboardAction, update

 

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getLayout, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paintComponents, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setCursor, setLayout, validate, validateTree

 

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, getBackground, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocationOnScreen, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hide, imageUpdate, inside, isDisplayable, isEnabled, isLightweight, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processInputMethodEvent, processMouseEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setDropTarget, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

JSeparator

public JSeparator()

Create a new horizontal separator.

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JSeparator

public JSeparator(int orientation)

Create a new separator with the specified horizontal or vertical orientation.

Parameters:

orientation - an int specifying SwingConstants.HORIZONTAL or SwingConstants.VERTICAL

Method Detail

getUI

public SeparatorUI getUI()

Returns the L&F object that renders this component.

Returns:

the SeparatorUI object that renders this component

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setUI

public void setUI(SeparatorUI ui)

Sets the L&F object that renders this component.

Parameters:

ui - the SeparatorUI L&F object

See Also:

UIDefaults.getUI(javax.swing.JComponent)

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updateUI

public void updateUI()

Notification from the UIFactory that the L&F has changed. Called to replace the UI with the latest version from the UIFactory.

Overrides:

updateUI in class JComponent

See Also:

JComponent.updateUI()

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getUIClassID

public String getUIClassID()

Returns the name of the L&F class that renders this component.

Overrides:

getUIClassID in class JComponent

Returns:

"SeparatorUI"

See Also:

JComponent.getUIClassID(), UIDefaults.getUI(javax.swing.JComponent)

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getOrientation

public int getOrientation()

Returns the orientation of this separator.

Returns:

The value of the orientation property, one of the following constants defined in SwingConstants: VERTICAL, or HORIZONTAL.

See Also:

SwingConstants, setOrientation(int)

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setOrientation

public void setOrientation(int orientation)

Sets the orientation of the separator. The default value of this property is HORIZONTAL.

See Also:

SwingConstants, getOrientation()

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paramString

protected String paramString()

Returns a string representation of this JSeparator. 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 JComponent

Returns:

a string representation of this JSeparator.

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isFocusTraversable

public boolean isFocusTraversable()

Identifies whether or not this component can receive the focus. JSeparators cannot recieve focus.

Overrides:

isFocusTraversable in class JComponent

Returns:

false

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getAccessibleContext

public AccessibleContext getAccessibleContext()

Get the AccessibleContext associated with this JComponent

Specified by:

getAccessibleContext in interface Accessible

Overrides:

getAccessibleContext in class JComponent

Returns:

the AccessibleContext of this JComponent

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