MetalScrollBarUI (Java Platform SE 6)
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Java™ PlatformStandard Ed. 6
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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 MetalScrollBarUIextends BasicScrollBarUI
Implementation of ScrollBarUI for the Metal Look and Feel
Nested Class Summary
Nested classes/interfaces inherited from class javax.swing.plaf.basic.BasicScrollBarUI
BasicScrollBarUI.ArrowButtonListener, BasicScrollBarUI.ModelListener, BasicScrollBarUI.PropertyChangeHandler, BasicScrollBarUI.ScrollListener, BasicScrollBarUI.TrackListener
Field Summary
protected javax.swing.plaf.metal.MetalBumps
bumps
protected MetalScrollButton
decreaseButton
static String
FREE_STANDING_PROP
protected MetalScrollButton
increaseButton
protected boolean
isFreeStanding
protected int
scrollBarWidth
Fields inherited from class javax.swing.plaf.basic.BasicScrollBarUI
buttonListener, decrButton, DECREASE_HIGHLIGHT, incrButton, INCREASE_HIGHLIGHT, isDragging, maximumThumbSize, minimumThumbSize, modelListener, NO_HIGHLIGHT, propertyChangeListener, scrollbar, scrollListener, scrollTimer, thumbDarkShadowColor, thumbLightShadowColor, thumbRect, trackColor, trackHighlight, trackHighlightColor, trackListener, trackRect
Fields inherited from 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
MetalScrollBarUI()
Method Summary
protected void
configureScrollBarColors()
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.
protected PropertyChangeListener
createPropertyChangeListener()
static ComponentUI
createUI(JComponent c)
protected Dimension
getMinimumThumbSize()
Return the smallest acceptable size for the thumb.
Dimension
getPreferredSize(JComponent c)
A vertical scrollbar's preferred width is the maximum of
preferred widths of the (non null)
increment/decrement buttons,
and the minimum width of the thumb.
protected void
installDefaults()
protected void
installListeners()
protected void
paintThumb(Graphics g,
JComponent c,
Rectangle thumbBounds)
protected void
paintTrack(Graphics g,
JComponent c,
Rectangle trackBounds)
protected void
setThumbBounds(int x,
int y,
int width,
int height)
This is overridden only to increase the invalid area.
Methods inherited from class javax.swing.plaf.basic.BasicScrollBarUI
addLayoutComponent, createArrowButtonListener, createModelListener, createScrollListener, createTrackListener, getMaximumSize, getMaximumThumbSize, getSupportsAbsolutePositioning, getThumbBounds, getTrackBounds, installComponents, installKeyboardActions, installUI, isThumbRollover, layoutContainer, layoutHScrollbar, layoutVScrollbar, minimumLayoutSize, paint, paintDecreaseHighlight, paintIncreaseHighlight, preferredLayoutSize, removeLayoutComponent, scrollByBlock, scrollByUnit, setThumbRollover, uninstallComponents, uninstallDefaults, uninstallKeyboardActions, uninstallListeners, uninstallUI
Methods inherited from class javax.swing.plaf.ComponentUI
contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMinimumSize, update
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Field Detail
bumps
protected javax.swing.plaf.metal.MetalBumps bumps
increaseButton
protected MetalScrollButton increaseButton
decreaseButton
protected MetalScrollButton decreaseButton
scrollBarWidth
protected int scrollBarWidth
FREE_STANDING_PROP
public static final String FREE_STANDING_PROP
See Also:Constant Field Values
isFreeStanding
protected boolean isFreeStanding
Constructor Detail
MetalScrollBarUI
public MetalScrollBarUI()
Method Detail
createUI
public static ComponentUI createUI(JComponent c)
installDefaults
protected void installDefaults()
Overrides:installDefaults in class BasicScrollBarUI
installListeners
protected void installListeners()
Overrides:installListeners in class BasicScrollBarUI
createPropertyChangeListener
protected PropertyChangeListener createPropertyChangeListener()
Overrides:createPropertyChangeListener in class BasicScrollBarUI
configureScrollBarColors
protected void configureScrollBarColors()
Overrides:configureScrollBarColors in class BasicScrollBarUI
getPreferredSize
public Dimension getPreferredSize(JComponent c)
Description copied from class: BasicScrollBarUI
A vertical scrollbar's preferred width is the maximum of
preferred widths of the (non null)
increment/decrement buttons,
and the minimum width of the thumb. The preferred height is the
sum of the preferred heights of the same parts. The basis for
the preferred size of a horizontal scrollbar is similar.
The preferredSize is only computed once, subsequent
calls to this method just return a cached size.
Overrides:getPreferredSize in class BasicScrollBarUI
Parameters:c - the JScrollBar that's delegating this method to us
Returns:the preferred size of a Basic JScrollBarSee Also:BasicScrollBarUI.getMaximumSize(javax.swing.JComponent),
ComponentUI.getMinimumSize(javax.swing.JComponent)
createDecreaseButton
protected JButton createDecreaseButton(int orientation)
Returns the view that represents the decrease view.
Overrides:createDecreaseButton in class BasicScrollBarUI
createIncreaseButton
protected JButton createIncreaseButton(int orientation)
Returns the view that represents the increase view.
Overrides:createIncreaseButton in class BasicScrollBarUI
paintTrack
protected void paintTrack(Graphics g,
JComponent c,
Rectangle trackBounds)
Overrides:paintTrack in class BasicScrollBarUI
paintThumb
protected void paintThumb(Graphics g,
JComponent c,
Rectangle thumbBounds)
Overrides:paintThumb in class BasicScrollBarUI
getMinimumThumbSize
protected Dimension getMinimumThumbSize()
Description copied from class: BasicScrollBarUI
Return the smallest acceptable size for the thumb. If the scrollbar
becomes so small that this size isn't available, the thumb will be
hidden.
Warning : the value returned by this method should not be
be modified, it's a shared static constant.
Overrides:getMinimumThumbSize in class BasicScrollBarUI
Returns:The smallest acceptable size for the thumb.See Also:BasicScrollBarUI.getMaximumThumbSize()
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
See Also:BasicScrollBarUI.getThumbBounds()
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Submit a bug or featureFor further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. Copyright 2009 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
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