public class SynthScrollBarUI extends BasicScrollBarUI implements PropertyChangeListener, SynthUI
Provides the Synth L&F UI delegate for 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 DEFAULT, DISABLED, ENABLED, FOCUSED, MOUSE_OVER, PRESSED, SELECTED BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST public SynthScrollBarUI()
public static ComponentUI createUI(JComponent c)
protected void installDefaults()
installDefaults in class BasicScrollBarUI
protected void configureScrollBarColors()
configureScrollBarColors in class BasicScrollBarUI
protected void installListeners()
installListeners in class BasicScrollBarUI
protected void uninstallListeners()
uninstallListeners in class BasicScrollBarUI
protected void uninstallDefaults()
uninstallDefaults in class BasicScrollBarUI
public SynthContext getContext(JComponent c)
Returns the Context for the specified component.
getContext in interface SynthUI
c - Component requesting SynthContext.public boolean getSupportsAbsolutePositioning()
Indicates whether the user can absolutely position the thumb with a mouse gesture (usually the middle mouse button).
getSupportsAbsolutePositioning in class BasicScrollBarUI
public void update(Graphics g,
JComponent c) Notifies this UI delegate to repaint the specified component. This method paints the component background, then calls the 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 paintedpaint(SynthContext,Graphics)public void paint(Graphics g,
JComponent c) 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.
paint in class BasicScrollBarUI
g - the Graphics object used for paintingc - the component being paintedpaint(SynthContext,Graphics)protected void paint(SynthContext context,
Graphics g) Paints the specified component.
context - context for the component being paintedg - the Graphics object used for paintingupdate(Graphics,JComponent)public void paintBorder(SynthContext context,
Graphics g,
int x,
int y,
int w,
int h) Paints the border.
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) Paints the scrollbar track.
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) Paints the scrollbar thumb.
context - context for the component being paintedg - Graphics object used for paintingthumbBounds - bounding box for the thumbpublic 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. 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 usBasicScrollBarUI.getMaximumSize(javax.swing.JComponent), ComponentUI.getMinimumSize(javax.swing.JComponent)
protected Dimension getMinimumThumbSize()
Returns 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.
getMinimumThumbSize in class BasicScrollBarUI
BasicScrollBarUI.getMaximumThumbSize()protected JButton createDecreaseButton(int orientation)
createDecreaseButton in class BasicScrollBarUI
protected JButton createIncreaseButton(int orientation)
createIncreaseButton in class BasicScrollBarUI
protected void setThumbRollover(boolean active)
Sets whether or not the mouse is currently over the thumb.
setThumbRollover in class BasicScrollBarUI
active - True indicates the thumb is currently active.public void propertyChange(PropertyChangeEvent e)
Description copied from interface: PropertyChangeListener
This method gets called when a bound property is changed.
propertyChange in interface PropertyChangeListener
e - A PropertyChangeEvent object describing the event source and the property that has changed.
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