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
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
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Method Summary
Modifier and TypeMethodDescriptionstatic ComponentUI
Returns a UI.Returns the Context for the specified component.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.void
paintBorder
(SynthContext context, Graphics g, int x, int y, int w, int h) Paints the border.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
This method gets called when a bound property is changed.void
update
(Graphics g, JComponent c) Notifies this UI delegate to repaint the specified component.Methods declared in class javax.swing.plaf.basic.BasicScrollBarUI
addLayoutComponent, configureScrollBarColors, createArrowButtonListener, createDecreaseButton, createIncreaseButton, createModelListener, createPropertyChangeListener, createScrollListener, createTrackListener, getMaximumSize, getMaximumThumbSize, getMinimumThumbSize, getSupportsAbsolutePositioning, getThumbBounds, getTrackBounds, installComponents, installDefaults, installKeyboardActions, installListeners, installUI, isThumbRollover, layoutContainer, layoutHScrollbar, layoutVScrollbar, minimumLayoutSize, paintDecreaseHighlight, paintIncreaseHighlight, paintThumb, paintTrack, preferredLayoutSize, removeLayoutComponent, scrollByBlock, scrollByUnit, setThumbBounds, setThumbRollover, uninstallComponents, uninstallDefaults, uninstallKeyboardActions, uninstallListeners, uninstallUI
Methods declared in class javax.swing.plaf.ComponentUI
contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMinimumSize
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Constructor Details
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SynthScrollBarUI
public SynthScrollBarUI()Constructs aSynthScrollBarUI
.
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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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getContext
Returns the Context for the specified component.- Specified by:
getContext
in interfaceSynthUI
- Parameters:
c
- Component requesting SynthContext.- Returns:
- SynthContext describing component.
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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:
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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
Paints the specified component.- Parameters:
context
- context for the component being paintedg
- theGraphics
object used for painting- See Also:
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paintBorder
Paints the border.- Specified by:
paintBorder
in interfaceSynthUI
- Parameters:
context
- a component contextg
-Graphics
to paint onx
- the X coordinatey
- the Y coordinatew
- width of the borderh
- height of the border
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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:
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propertyChange
Description copied from interface:PropertyChangeListener
This method gets called when a bound property is changed.- Specified by:
propertyChange
in interfacePropertyChangeListener
- Parameters:
e
- A PropertyChangeEvent object describing the event source and the property that has changed.
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