Module java.desktop

Package javax.swing.plaf.metal

Class MetalScrollBarUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.ScrollBarUI

javax.swing.plaf.basic.BasicScrollBarUI

javax.swing.plaf.metal.MetalScrollBarUI

All Implemented Interfaces:

LayoutManager, SwingConstants

public class MetalScrollBarUI
extends BasicScrollBarUI

Implementation of ScrollBarUI for the Metal Look and Feel

Nested Class Summary

Nested classes/interfaces declared in class javax.swing.plaf.basic.BasicScrollBarUI

BasicScrollBarUI.ArrowButtonListener, BasicScrollBarUI.ModelListener, BasicScrollBarUI.PropertyChangeHandler, BasicScrollBarUI.ScrollListener, BasicScrollBarUI.TrackListener

Field Summary

Fields

Modifier and Type	Field	Description
protected MetalScrollButton	decreaseButton	The decrease button.
static final String	FREE_STANDING_PROP	The property JScrollBar.isFreeStanding.
protected MetalScrollButton	increaseButton	The increase button.
protected boolean	isFreeStanding	The value of the property JScrollBar.isFreeStanding.
protected int	scrollBarWidth	The width of the scroll bar.

Fields declared in class javax.swing.plaf.basic.BasicScrollBarUI

buttonListener, decrButton, DECREASE_HIGHLIGHT, decrGap, incrButton, INCREASE_HIGHLIGHT, incrGap, isDragging, maximumThumbSize, minimumThumbSize, modelListener, NO_HIGHLIGHT, propertyChangeListener, scrollbar, scrollListener, scrollTimer, thumbDarkShadowColor, thumbLightShadowColor, thumbRect, trackColor, trackHighlight, trackHighlightColor, trackListener, trackRect

Fields declared in 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

Constructor Summary

Constructors

Constructor	Description
MetalScrollBarUI()	Constructs a MetalScrollBarUI.

Method Summary

Modifier and Type	Method	Description
protected JButton	createDecreaseButton(int orientation)	Returns the view that represents the decrease view.
protected JButton	createIncreaseButton(int orientation)	Returns the view that represents the increase view.
static ComponentUI	createUI(JComponent c)	Constructs a new MetalScrollBarUI instance.
protected void	setThumbBounds(int x, int y, int width, int height)	This is overridden only to increase the invalid area.

Methods declared in class javax.swing.plaf.basic.BasicScrollBarUI

addLayoutComponent, configureScrollBarColors, createArrowButtonListener, createModelListener, createPropertyChangeListener, createScrollListener, createTrackListener, getMaximumSize, getMaximumThumbSize, getMinimumThumbSize, getPreferredSize, getSupportsAbsolutePositioning, getThumbBounds, getTrackBounds, installComponents, installDefaults, installKeyboardActions, installListeners, installUI, isThumbRollover, layoutContainer, layoutHScrollbar, layoutVScrollbar, minimumLayoutSize, paintDecreaseHighlight, paintIncreaseHighlight, paintThumb, paintTrack, preferredLayoutSize, removeLayoutComponent, scrollByBlock, scrollByUnit, setThumbRollover, uninstallComponents, uninstallDefaults, uninstallKeyboardActions, uninstallListeners, uninstallUI

Methods declared in class javax.swing.plaf.ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMinimumSize, paint, update

Methods declared in class java.lang.Object

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

Field Details

increaseButton

protected MetalScrollButton increaseButton

The increase button.

decreaseButton

protected MetalScrollButton decreaseButton

The decrease button.

scrollBarWidth

protected int scrollBarWidth

The width of the scroll bar.

FREE_STANDING_PROP

public static final String FREE_STANDING_PROP

The property JScrollBar.isFreeStanding.

See Also:

• Constant Field Values

isFreeStanding

protected boolean isFreeStanding

The value of the property JScrollBar.isFreeStanding.

Constructor Details

MetalScrollBarUI

public MetalScrollBarUI()

Constructs a MetalScrollBarUI.

Method Details

createUI

public static ComponentUI createUI(JComponent c)

Constructs a new MetalScrollBarUI instance.

Parameters:

c - a component

Returns:

a new MetalScrollBarUI instance

createDecreaseButton

protected JButton createDecreaseButton(int orientation)

Returns the view that represents the decrease view.

Overrides:

createDecreaseButton in class BasicScrollBarUI

Parameters:

orientation - the orientation

Returns:

a decrease button

createIncreaseButton

protected JButton createIncreaseButton(int orientation)

Returns the view that represents the increase view.

Overrides:

createIncreaseButton in class BasicScrollBarUI

Parameters:

orientation - the orientation

Returns:

an increase button

setThumbBounds

protected void setThumbBounds(int x,
 int y,
 int width,
 int height)

This is overridden only to increase the invalid area. This ensures that the "Shadow" below the thumb is invalidated

Overrides:

setThumbBounds in class BasicScrollBarUI

Parameters:

x - set the x location of the thumb

y - set the y location of the thumb

width - set the width of the thumb

height - set the height of the thumb

See Also:

• BasicScrollBarUI.getThumbBounds()