java.lang.Object
javax.swing.plaf.ComponentUI
javax.swing.plaf.ScrollBarUI
javax.swing.plaf.basic.BasicScrollBarUI
javax.swing.plaf.synth.SynthScrollBarUI
- All Implemented Interfaces:
LayoutManager
,PropertyChangeListener
,EventListener
,SynthConstants
,SynthUI
,SwingConstants
public class SynthScrollBarUI extends BasicScrollBarUI implements PropertyChangeListener, SynthUI
Provides the Synth L&F UI delegate for
JScrollBar
.- Since:
- 1.7
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Nested Class Summary
Nested classes/interfaces declared in class javax.swing.plaf.basic.BasicScrollBarUI
BasicScrollBarUI.ArrowButtonListener, BasicScrollBarUI.ModelListener, BasicScrollBarUI.PropertyChangeHandler, BasicScrollBarUI.ScrollListener, BasicScrollBarUI.TrackListener
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Field Summary
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, scrollBarWidth, scrollListener, scrollTimer, thumbColor, thumbDarkShadowColor, thumbHighlightColor, 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
Fields declared in interface javax.swing.plaf.synth.SynthConstants
DEFAULT, DISABLED, ENABLED, FOCUSED, MOUSE_OVER, PRESSED, SELECTED
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Constructor Summary
Constructors Constructor Description SynthScrollBarUI()
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Method Summary
Modifier and Type Method Description static ComponentUI
createUI(JComponent c)
Returns a UI.Dimension
getPreferredSize(JComponent c)
A vertical scrollbar's preferred width is the maximum of preferred widths of the (nonnull
) increment/decrement buttons, and the minimum width of the thumb.void
paint(Graphics g, JComponent c)
Paints the specified component according to the Look and Feel.protected void
paint(SynthContext context, Graphics g)
Paints the specified component.protected void
paintThumb(SynthContext context, Graphics g, Rectangle thumbBounds)
Paints the scrollbar thumb.protected void
paintTrack(SynthContext context, Graphics g, Rectangle trackBounds)
Paints the scrollbar track.void
update(Graphics g, JComponent c)
Notifies this UI delegate to repaint the specified component.Methods declared in class javax.swing.plaf.basic.BasicScrollBarUI
configureScrollBarColors, createArrowButtonListener, createDecreaseButton, createIncreaseButton, createModelListener, createPropertyChangeListener, createScrollListener, createTrackListener, getMaximumSize, getMaximumThumbSize, getMinimumThumbSize, getSupportsAbsolutePositioning, getThumbBounds, getTrackBounds, installComponents, installDefaults, installKeyboardActions, installListeners, installUI, isThumbRollover, layoutHScrollbar, layoutVScrollbar, paintDecreaseHighlight, paintIncreaseHighlight, paintThumb, paintTrack, scrollByBlock, scrollByUnit, setThumbBounds, setThumbRollover, uninstallComponents, uninstallDefaults, uninstallKeyboardActions, uninstallListeners, uninstallUI
Methods declared in class javax.swing.plaf.ComponentUI
contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMinimumSize
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
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Constructor Details
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SynthScrollBarUI
public SynthScrollBarUI()
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Method Details
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createUI
Returns a UI.- Parameters:
c
- a component- Returns:
- a UI
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update
Notifies this UI delegate to repaint the specified component. This method paints the component background, then calls thepaint(SynthContext,Graphics)
method.In general, this method does not need to be overridden by subclasses. All Look and Feel rendering code should reside in the
paint
method.- Overrides:
update
in classComponentUI
- Parameters:
g
- theGraphics
object used for paintingc
- the component being painted- See Also:
paint(SynthContext,Graphics)
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paint
Paints the specified component according to the Look and Feel.This method is not used by Synth Look and Feel. Painting is handled by the
paint(SynthContext,Graphics)
method.- Overrides:
paint
in classComponentUI
- Parameters:
g
- theGraphics
object used for paintingc
- the component being painted- See Also:
paint(SynthContext,Graphics)
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paint
Paints the specified component.- Parameters:
context
- context for the component being paintedg
- theGraphics
object used for painting- See Also:
update(Graphics,JComponent)
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paintTrack
Paints the scrollbar track.- Parameters:
context
- context for the component being paintedg
-Graphics
object used for paintingtrackBounds
- bounding box for the track
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paintThumb
Paints the scrollbar thumb.- Parameters:
context
- context for the component being paintedg
-Graphics
object used for paintingthumbBounds
- bounding box for the thumb
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getPreferredSize
A vertical scrollbar's preferred width is the maximum of preferred widths of the (nonnull
) 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 classBasicScrollBarUI
- Parameters:
c
- theJScrollBar
that's delegating this method to us- Returns:
- the preferred size of a Basic JScrollBar
- See Also:
BasicScrollBarUI.getMaximumSize(javax.swing.JComponent)
,ComponentUI.getMinimumSize(javax.swing.JComponent)
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