LayoutManager, PropertyChangeListener, EventListener, SynthConstants, SynthUI, SwingConstants
public class SynthScrollBarUI extends BasicScrollBarUI implements PropertyChangeListener, SynthUI
JScrollBar.BasicScrollBarUI.ArrowButtonListener, BasicScrollBarUI.ModelListener, BasicScrollBarUI.PropertyChangeHandler, BasicScrollBarUI.ScrollListener, BasicScrollBarUI.TrackListener
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
BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST
DEFAULT, DISABLED, ENABLED, FOCUSED, MOUSE_OVER, PRESSED, SELECTED
| Constructor | Description |
|---|---|
SynthScrollBarUI() |
Constructs a SynthScrollBarUI. |
| Modifier and Type | Method | Description |
|---|---|---|
static ComponentUI |
createUI |
Returns a UI. |
SynthContext |
getContext |
Returns the Context for the specified component. |
Dimension |
getPreferredSize |
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. |
void |
paint |
Paints the specified component according to the Look and Feel. |
protected void |
paint |
Paints the specified component. |
void |
paintBorder |
Paints the border. |
protected void |
paintThumb |
Paints the scrollbar thumb. |
protected void |
paintTrack |
Paints the scrollbar track. |
void |
propertyChange |
This method gets called when a bound property is changed. |
void |
update |
Notifies this UI delegate to repaint the specified component. |
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
contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMinimumSize
public SynthScrollBarUI()
SynthScrollBarUI.public static ComponentUI createUI(JComponent c)
c - a componentpublic SynthContext getContext(JComponent c)
getContext in interface SynthUI
c - Component requesting SynthContext.public void update(Graphics g, JComponent c)
paint(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.
update in class ComponentUI
g - the Graphics object used for paintingc - the component being paintedpublic void paint(Graphics g, JComponent c)
This method is not used by Synth Look and Feel. Painting is handled by the paint(SynthContext,Graphics) method.
paint in class ComponentUI
g - the Graphics object used for paintingc - the component being paintedprotected void paint(SynthContext context, Graphics g)
context - context for the component being paintedg - the Graphics object used for paintingpublic void paintBorder(SynthContext context, Graphics g, int x, int y, int w, int h)
paintBorder in interface SynthUI
context - a component contextg - Graphics to paint onx - the X coordinatey - the Y coordinatew - width of the borderh - height of the borderprotected void paintTrack(SynthContext context, Graphics g, Rectangle trackBounds)
context - context for the component being paintedg - Graphics object used for paintingtrackBounds - bounding box for the trackprotected void paintThumb(SynthContext context, Graphics g, Rectangle thumbBounds)
context - context for the component being paintedg - Graphics object used for paintingthumbBounds - bounding box for the thumbpublic Dimension getPreferredSize(JComponent c)
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.
getPreferredSize in class BasicScrollBarUI
c - the JScrollBar that's delegating this method to uspublic void propertyChange(PropertyChangeEvent e)
PropertyChangeListenerpropertyChange in interface PropertyChangeListener
e - A PropertyChangeEvent object describing the event source and the property that has changed.
© 1993, 2023, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/javax/swing/plaf/synth/SynthScrollBarUI.html