javax.swing
類別 JScrollPane.ScrollBar

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.JScrollBar
                  javax.swing.JScrollPane.ScrollBar

所有已實作的介面：

Adjustable, ImageObserver, MenuContainer, Serializable, Accessible, UIResource

正在封閉類別：

JScrollPane

protected class JScrollPane.ScrollBar
extends JScrollBar
implements UIResource

預設情況下，JScrollPane 創建的滾動條為此類別的實例。Scrollbar 覆寫 getUnitIncrement 和 getBlockIncrement 方法，所以如果視口的視圖為 Scrollable，會要求該視圖計算這些值。除非顯式設置了單位/塊增量。

警告：此類別的序列化物件將與以後的 Swing 版本不相容。當前的序列化支持適用於短期存儲或運行相同 Swing 版本的應用程序之間的 RMI。從 1.4 版本開始，已在 java.beans 套件中添加了支持所有 JavaBeans^TM 長期存儲的功能。請參閱 XMLEncoder。

另請參見：

Scrollable, JScrollPane.createVerticalScrollBar(), JScrollPane.createHorizontalScrollBar()

巢狀類別摘要

從類別 javax.swing.JScrollBar 繼承的巢狀類別/介面

JScrollBar.AccessibleJScrollBar

從類別 javax.swing.JComponent 繼承的巢狀類別/介面

JComponent.AccessibleJComponent

從類別 java.awt.Container 繼承的巢狀類別/介面

Container.AccessibleAWTContainer

從類別 java.awt.Component 繼承的巢狀類別/介面

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

欄位摘要

從類別 javax.swing.JScrollBar 繼承的欄位

blockIncrement, model, orientation, unitIncrement

從類別 javax.swing.JComponent 繼承的欄位

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

從類別 java.awt.Component 繼承的欄位

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

從介面 java.awt.Adjustable 繼承的欄位

HORIZONTAL, NO_ORIENTATION, VERTICAL

從介面 java.awt.image.ImageObserver 繼承的欄位

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

建構子摘要

JScrollPane.ScrollBar(int orientation)
創建具有指定方向的滾動條。

方法摘要

int	getBlockIncrement(int direction) 如果視口中的視圖為 Scrollable 物件，將計算滾動的塊增量值。
int	getUnitIncrement(int direction) 如果視口中的視圖為 Scrollable 物件，將計算滾動的單位增量值。
void	setBlockIncrement(int blockIncrement) 通知父級類別來設定該值，並將 blockIncrementSet 實例變數重置為 true。
void	setUnitIncrement(int unitIncrement) 通知父級類別來設定該值，並將 unitIncrementSet 實例變數重置為 true。

從類別 javax.swing.JScrollBar 繼承的方法

addAdjustmentListener, fireAdjustmentValueChanged, getAccessibleContext, getAdjustmentListeners, getBlockIncrement, getMaximum, getMaximumSize, getMinimum, getMinimumSize, getModel, getOrientation, getUI, getUIClassID, getUnitIncrement, getValue, getValueIsAdjusting, getVisibleAmount, paramString, removeAdjustmentListener, setEnabled, setMaximum, setMinimum, setModel, setOrientation, setUI, setValue, setValueIsAdjusting, setValues, setVisibleAmount, updateUI

從類別 javax.swing.JComponent 繼承的方法

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, 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, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

從類別 java.awt.Container 繼承的方法

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

從類別 java.awt.Component 繼承的方法

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

從類別 java.lang.Object 繼承的方法

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

建構子詳細資訊

JScrollPane.ScrollBar

public JScrollPane.ScrollBar(int orientation)

創建具有指定方向的滾動條。方向包括：

• ScrollPaneConstants.VERTICAL
• ScrollPaneConstants.HORIZONTAL

參數：

orientation - 指定上面兩個合法方向值之一的整數

方法詳細資訊

setUnitIncrement

public void setUnitIncrement(int unitIncrement)

通知父級類別來設定該值，並將 unitIncrementSet 實例變數重置為 true。

指定者：

介面 Adjustable 中的 setUnitIncrement

覆寫：

類別 JScrollBar 中的 setUnitIncrement

參數：

unitIncrement - 新單位增量值，以像素為單位

從以下版本開始：

1.4

另請參見：

JScrollBar.getUnitIncrement(int)

getUnitIncrement

public int getUnitIncrement(int direction)

如果視口中的視圖為 Scrollable 物件，將計算滾動的單位增量值。否則返回 super.getUnitIncrement。

覆寫：

類別 JScrollBar 中的 getUnitIncrement

參數：

direction - 小於零表示向上/左滾動，大於零表示向下/右滾動

返回：

包含單位增量的整數，以像素為單位

另請參見：

Scrollable.getScrollableUnitIncrement(java.awt.Rectangle, int, int)

setBlockIncrement

public void setBlockIncrement(int blockIncrement)

通知父級類別來設定該值，並將 blockIncrementSet 實例變數重置為 true。

指定者：

介面 Adjustable 中的 setBlockIncrement

覆寫：

類別 JScrollBar 中的 setBlockIncrement

參數：

blockIncrement - 新的塊增量值，以像素為單位

另請參見：

JScrollBar.getBlockIncrement()

getBlockIncrement

public int getBlockIncrement(int direction)

如果視口中的視圖為 Scrollable 物件，將計算滾動的塊增量值。否則 blockIncrement 與視口的寬度或高度相等。如果無任何視口，則返回 super.getBlockIncrement。

覆寫：

類別 JScrollBar 中的 getBlockIncrement

參數：

direction - 小於零表示向上/向左滾動，大於零表示向下/向右滾動

返回：

包含塊增量的整數，以像素為單位

另請參見：

Scrollable.getScrollableBlockIncrement(java.awt.Rectangle, int, int)