Overview | Package | Class | Tree | Deprecated | Index | Help			Java Platform 1.1.7
PREV CLASS | NEXT CLASS	FRAMES | NO FRAMES
SUMMARY: INNER | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

Class com.sun.java.swing.JScrollPane.ScrollBar

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--com.sun.java.swing.JComponent
                    |
                    +--com.sun.java.swing.JScrollBar
                          |
                          +--com.sun.java.swing.JScrollPane.ScrollBar

protected class JScrollPane.ScrollBar

extends JScrollBar

By default JScrollPane creates scrollbars that are instances of this class. Scrollbar overrides the getUnitIncrement and getBlockIncrement methods so that, if the viewports view is a Scrollable, the view is asked to compute these values.

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 Swing1.0 applications. It will not be possible to load serialized Swing1.0 objects with future releases of Swing. The JDK1.2 release of Swing will be the compatibility baseline for the serialized form of Swing objects.

See Also:

Scrollable, createVerticalScrollBar, createHorizontalScrollBar, Serialized Form

Inner classes inherited from class com.sun.java.swing.JScrollBar

JScrollBar.AccessibleJScrollBar

Inner classes inherited from class com.sun.java.swing.JComponent

JComponent.AccessibleJComponent

Fields inherited from class com.sun.java.swing.JScrollBar

blockIncrement, model, orientation, unitIncrement

Fields inherited from class com.sun.java.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

Constructor Summary

JScrollPane.ScrollBar(JScrollPane this$0, int orientation)
Create a scrollbar with the specified orientation, where the options are:

• ScrollPaneConstants.

Method Summary

int	getBlockIncrement(int direction) If the viewports view is a Scrollable then ask the view to compute the block increment.
int	getUnitIncrement(int direction) If the viewports view is a Scrollable then ask the view to compute the unit increment.

Methods inherited from class com.sun.java.swing.JScrollBar

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

Methods inherited from class com.sun.java.swing.JComponent

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

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addNotify, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponentAt, getComponentAt, getComponent, getComponentCount, getComponents, getInsets, getLayout, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paintComponents, paint, paramString, preferredSize, printComponents, print, processContainerEvent, processEvent, removeAll, remove, remove, removeContainerListener, removeNotify, setLayout, update, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getHeight, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMinimumSize, getName, getParent, getPeer, getPreferredSize, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isDisplayable, isDoubleBuffered, isEnabled, isFocusTraversable, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, paint, paramString, postEvent, preferredSize, prepareImage, prepareImage, printAll, print, processComponentEvent, processEvent, processFocusEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFont, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, update, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

JScrollPane.ScrollBar

public JScrollPane.ScrollBar(JScrollPane this$0,
                             int orientation)

Create a scrollbar with the specified orientation, where the options are:

• ScrollPaneConstants.VERTICAL_SCROLLBAR
• ScrollPaneConstants.HORIZONTAL_SCROLLBAR

Parameters:

orientation - an int specifying the orientation

Method Detail

getUnitIncrement

public int getUnitIncrement(int direction)

If the viewports view is a Scrollable then ask the view to compute the unit increment. Otherwise return super.getUnitIncrement().

Overrides:

getUnitIncrement in class JScrollBar

See Also:

getScrollableUnitIncrement

getBlockIncrement

public int getBlockIncrement(int direction)

If the viewports view is a Scrollable then ask the view to compute the block increment. Otherwise the blockIncrement equals the viewports width or height. If there's no viewport reuurn super.getBlockIncrement().

Overrides:

getBlockIncrement in class JScrollBar

See Also:

getScrollableBlockIncrement