javax.swing

Class JSeparator

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.JSeparator

All Implemented Interfaces:

ImageObserver ， MenuContainer ， Serializable ， Accessible ， SwingConstants

已知直接子类：

JPopupMenu.Separator ， JToolBar.Separator

public class JSeparator
extends JComponent
implements SwingConstants, Accessible

JSeparator提供了一种用于实现分割线的通用组件 - 通常用作将其分解为逻辑分组的菜单项之间的分隔符。 而不是直接使用JSeparator ，您可以使用JMenu或JPopupMenu addSeparator方法来创建和添加分隔符。 JSeparator也可以在GUI的其他地方使用，只要视觉分隔符有用。

有关更多信息和示例，请参阅Java Tutorial中的 How to Use Menus 。

警告： Swing不是线程安全的。 有关更多信息，请参阅Swing's Threading Policy 。

警告：此类的序列化对象与将来的Swing版本不兼容。 当前的序列化支持适用于运行相同版本的Swing的应用程序之间的短期存储或RMI。 从1.4开始，对所有JavaBeans的长期存储的支持已被添加到java.beans软件包中。 请参阅XMLEncoder 。

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	JSeparator.AccessibleJSeparator 这个类实现了可访问性支持 JSeparator类。

Nested classes/interfaces inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

Fields inherited from class javax.swing.JComponent

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

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

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

构造方法摘要

构造方法

Constructor and Description
JSeparator() 创建一个新的水平分隔符。
JSeparator(int orientation) 创建一个具有指定的水平或垂直方向的新分隔符。

方法摘要

Modifier and Type	Method and Description
AccessibleContext	getAccessibleContext() 获取与此JSeparator关联的AccessibleContext。
int	getOrientation() 返回此分隔符的方向。
SeparatorUI	getUI() 返回渲染此组件的L＆F对象。
String	getUIClassID() 返回呈现此组件的L＆F类的名称。
protected String	paramString() 返回此 JSeparator的字符串表示 JSeparator 。
void	setOrientation(int orientation) 设置分隔符的方向。
void	setUI(SeparatorUI ui) 设置渲染此组件的L＆F对象。
void	updateUI() 将UI属性重置为当前外观的值。

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, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, 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, setEnabled, 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, addImpl, 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, setLayout, 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, imageUpdate, 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, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

构造方法详细信息

JSeparator

public JSeparator()

创建一个新的水平分隔符。

JSeparator

public JSeparator(int orientation)

创建一个具有指定的水平或垂直方向的新分隔符。

参数

orientation - 一个指定 SwingConstants.HORIZONTAL或 SwingConstants.VERTICAL的整数

异常

IllegalArgumentException - 如果 orientation既不是 SwingConstants.HORIZONTAL也不是 SwingConstants.VERTICAL

方法详细信息

getUI

public SeparatorUI getUI()

返回渲染此组件的L＆F对象。

结果

用于呈现此组件的SeparatorUI对象

setUI

public void setUI(SeparatorUI ui)

设置渲染此组件的L＆F对象。

参数

ui - SeparatorUI L＆F对象

另请参见：

UIDefaults.getUI(javax.swing.JComponent)

updateUI

public void updateUI()

将UI属性重置为当前外观的值。

重写：

updateUI在 JComponent

另请参见：

JComponent.updateUI()

getUIClassID

public String getUIClassID()

返回呈现此组件的L＆F类的名称。

重写：

getUIClassID在 JComponent

结果

字符串“SeparatorUI”

另请参见：

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

getOrientation

public int getOrientation()

返回此分隔符的方向。

结果

orientation属性的值，SwingConstants中定义的 SwingConstants ： VERTICAL或 HORIZONTAL 。

另请参见：

SwingConstants ， setOrientation(int)

setOrientation

public void setOrientation(int orientation)

设置分隔符的方向。 该属性的默认值为HORIZONTAL。

参数

orientation - SwingConstants.HORIZONTAL或 SwingConstants.VERTICAL

异常

IllegalArgumentException - 如果 orientation既不是 SwingConstants.HORIZONTAL也不是 SwingConstants.VERTICAL

另请参见：

SwingConstants ， getOrientation()

paramString

protected String paramString()

返回此JSeparator的字符串表示JSeparator 。 该方法仅用于调试目的，并且返回的字符串的内容和格式可能因实现而异。 返回的字符串可能为空，但可能不是null 。

重写：

paramString在 JComponent

结果

这个 JSeparator的字符串表示 JSeparator

getAccessibleContext

public AccessibleContext getAccessibleContext()

获取与此JSeparator关联的AccessibleContext。 对于分隔符，AccessibleContext采用AccessibleJSeparator的形式。 如有必要，将创建一个新的AccessibleJSeparator实例。

Specified by:

getAccessibleContext在接口 Accessible

重写：

getAccessibleContext在 Component类

结果

一个AccessibleJSeparator作为这个JSeparator的AccessibleContext