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 Classes

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

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

Fields

Modifier and Type	Field	Description
`protected MetalScrollButton`	`decreaseButton`	The decrease button.
`static 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

Constructors

Constructor	Description
`MetalScrollBarUI()`

Methods

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

configureScrollBarColors, createArrowButtonListener, createModelListener, createPropertyChangeListener, createScrollListener, createTrackListener, getMaximumSize, getMaximumThumbSize, getMinimumThumbSize, getPreferredSize, getSupportsAbsolutePositioning, getThumbBounds, getTrackBounds, installComponents, installDefaults, installKeyboardActions, installListeners, installUI, isThumbRollover, layoutHScrollbar, layoutVScrollbar, paintDecreaseHighlight, paintIncreaseHighlight, paintThumb, paintTrack, 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

Methods declared in interface java.awt.LayoutManager

addLayoutComponent, layoutContainer, minimumLayoutSize, preferredLayoutSize, removeLayoutComponent

Fields

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.

Constructors

MetalScrollBarUI

public MetalScrollBarUI()

Methods

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()

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https://docs.oracle.com/en/java/javase/11/docs/api/java.desktop/javax/swing/plaf/metal/MetalScrollBarUI.html