JavaTM Platform
Standard Ed. 6

javax.swing
类 JSeparator

java.lang.Object
  继承者 java.awt.Component
      继承者 java.awt.Container
          继承者 javax.swing.JComponent
              继承者 javax.swing.JSeparator
所有已实现的接口:
ImageObserver, MenuContainer, Serializable, Accessible, SwingConstants
直接已知子类:
JPopupMenu.Separator, JToolBar.Separator

public class JSeparator
     
extends JComponent
implements SwingConstants, Accessible

JSeparator 为实现分隔线提供了一个通用组件 - 通常用作菜单项之间的分隔符,以便将菜单项分成几个逻辑组。可以使用 JMenu 或者 JPopupMenuaddSeparator 方法来创建和添加一个分隔符,而不是直接使用 JSeparatorJSeparator 还可能用于 GUI 中任何一个需要可视化分隔符的地方。

有关更多信息和示例,请参阅 The Java Tutorial 中的 How to Use Menus 一节。

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:此类的已序列化对象与以后的 Swing 版本不兼容。当前序列化支持适用于短期存储,或适用于在运行相同 Swing 版本的应用程序之间进行 RMI(Remote Method Invocation,远程方法调用)。从 1.4 版本开始,已在 java.beans 包中添加了支持所有 JavaBeansTM 长期存储的功能。请参见 XMLEncoder


嵌套类摘要
protected  class JSeparator.AccessibleJSeparator
          此类实现 JSeparator 类的可访问性支持。
 
从类 javax.swing.JComponent 继承的嵌套类/接口
JComponent.AccessibleJComponent
 
从类 java.awt.Container 继承的嵌套类/接口
Container.AccessibleAWTContainer
 
从类 java.awt.Component 继承的嵌套类/接口
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy
 
字段摘要
 
从类 javax.swing.JComponent 继承的字段
accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW
 
从类 java.awt.Component 继承的字段
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
 
从接口 javax.swing.SwingConstants 继承的字段
BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST
 
从接口 java.awt.image.ImageObserver 继承的字段
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
 
构造方法摘要
JSeparator()
          创建一个新的水平分隔符。
JSeparator(int orientation)
          创建一个具有指定水平或者垂直方向的分隔符。
 
方法摘要
 AccessibleContext getAccessibleContext()
          获取与此 JSeparator 相关的 AccessibleContext。
 int getOrientation()
          返回此分隔符的方向。
 SeparatorUI getUI()
          返回呈现此组件的 L&F 对象。
 String getUIClassID()
          返回呈现此组件的 L&F 的类名。
protected  String paramString()
          返回表示此 JSeparator 的一个字符串。
 void setOrientation(int orientation)
          设置此分隔符的方向。
 void setUI(SeparatorUI ui)
          设置呈现此组件的 L&F 对象。
 void updateUI()
          根据当前外观将 UI 属性重设成某个值。
 
从类 javax.swing.JComponent 继承的方法
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, 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
 
从类 java.awt.Container 继承的方法
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, transferFocusBackward, transferFocusDownCycle, validate, validateTree
 
从类 java.awt.Component 继承的方法
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, 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, transferFocusUpCycle
 
从类 java.lang.Object 继承的方法
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)
创建一个具有指定水平或者垂直方向的分隔符。

参数:
orientation - 指定 SwingConstants.HORIZONTALSwingConstants.VERTICAL 的一个整数
抛出:
IllegalArgumentException - 如果 orientation 既不是 SwingConstants.HORIZONTAL 也不是 SwingConstants.VERTICAL
方法详细信息

getUI

public SeparatorUI getUI()
返回呈现此组件的 L&F 对象。

返回:
呈现此组件的 SeparatorUI 对象

setUI

public void setUI(SeparatorUI ui)
设置呈现此组件的 L&F 对象。

参数:
ui - SeparatorUI 的 L&F 对象
另请参见:
UIDefaults.getUI(javax.swing.JComponent)

updateUI

public void updateUI()
根据当前外观将 UI 属性重设成某个值。

覆盖:
JComponent 中的 updateUI
另请参见:
JComponent.updateUI()

getUIClassID

public String getUIClassID()
返回呈现此组件的 L&F 的类名。

覆盖:
JComponent 中的 getUIClassID
返回:
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。

返回:
方向属性值,它是 SwingConstants 中定义的如下常量之一: VERTICALHORIZONTAL
另请参见:
SwingConstants, setOrientation(int)

setOrientation

public void setOrientation(int orientation)
设置此分隔符的方向。此属性的默认值是 HORIZONTAL。

参数:
orientation - 是 SwingConstants.HORIZONTALSwingConstants.VERTICAL
抛出:
IllegalArgumentException - 如果 orientation 既不是 SwingConstants.HORIZONTAL 也不是 SwingConstants.VERTICAL
另请参见:
SwingConstants, getOrientation()

paramString

protected String paramString()
返回表示此 JSeparator 的一个字符串。此方法仅在进行调试的时候使用,对于各个实现,所返回字符串的内容和格式可能有所不同。返回的字符串可能为空,但不可能为 null

覆盖:
JComponent 中的 paramString
返回:
JSeparator 的字符串表示形式

getAccessibleContext

public AccessibleContext getAccessibleContext()
获取与此 JSeparator 相关的 AccessibleContext。对于分隔符,AccessibleContext 采用 AccessibleJSeparator 的形式。必要时创建新的 AccessibleJSeparator 的实例。

指定者:
接口 Accessible 中的 getAccessibleContext
覆盖:
JComponent 中的 getAccessibleContext
返回:
一个 AccessibleJSeparator,它充当此 JSeparator 的 AccessibleContext

JavaTM Platform
Standard Ed. 6

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