Class SynthSliderUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.SliderUI

javax.swing.plaf.basic.BasicSliderUI

javax.swing.plaf.synth.SynthSliderUI

All Implemented Interfaces:

PropertyChangeListener, EventListener, SynthConstants, SynthUI

public class SynthSliderUI
extends BasicSliderUI
implements PropertyChangeListener, SynthUI

Provides the Synth L&F UI delegate for JSlider.

Since:

1.7

Nested Class Summary

Nested classes/interfaces inherited from class BasicSliderUI

BasicSliderUI.ActionScroller, BasicSliderUI.ChangeHandler, BasicSliderUI.ComponentHandler, BasicSliderUI.FocusHandler, BasicSliderUI.PropertyChangeHandler, BasicSliderUI.ScrollListener, BasicSliderUI.TrackListener

Modifier and Type	Class	Description
class	BasicSliderUI.ActionScroller	As of Java 2 platform v1.3 this undocumented class is no longer used.
class	BasicSliderUI.ChangeHandler	Data model listener.
class	BasicSliderUI.ComponentHandler	Listener for resizing events.
class	BasicSliderUI.FocusHandler	Focus-change listener.
class	BasicSliderUI.PropertyChangeHandler	A property change handler.
class	BasicSliderUI.ScrollListener	Scroll-event listener.
class	BasicSliderUI.TrackListener	Track mouse movements.

Field Summary

Fields inherited from class BasicSliderUI

changeListener, componentListener, contentRect, focusInsets, focusListener, focusRect, insetCache, labelRect, leftToRightCache, MAX_SCROLL, MIN_SCROLL, NEGATIVE_SCROLL, POSITIVE_SCROLL, propertyChangeListener, scrollListener, scrollTimer, slider, thumbRect, tickRect, trackBuffer, trackListener, trackRect

Modifier and Type	Field	Description
protected ChangeListener	changeListener	Change listener
protected ComponentListener	componentListener	Component listener
protected Rectangle	contentRect	Content rectangle
protected Insets	focusInsets	Focus insets
protected FocusListener	focusListener	Focus listener
protected Rectangle	focusRect	Focus rectangle
protected Insets	insetCache	Inset cache
protected Rectangle	labelRect	Label rectangle
protected boolean	leftToRightCache	Left-to-right cache
static final int	MAX_SCROLL	Maximum scroll
static final int	MIN_SCROLL	Minimum scroll
static final int	NEGATIVE_SCROLL	Negative scroll
static final int	POSITIVE_SCROLL	Positive scroll
protected PropertyChangeListener	propertyChangeListener	Property change listener
protected BasicSliderUI.ScrollListener	scrollListener	Scroll listener
protected Timer	scrollTimer	Scroll timer
protected JSlider	slider	Slider
protected Rectangle	thumbRect	Thumb rectangle
protected Rectangle	tickRect	Tick rectangle
protected int	trackBuffer	The distance that the track is from the side of the control
protected BasicSliderUI.TrackListener	trackListener	Track listener
protected Rectangle	trackRect	Track rectangle

Fields inherited from interface SynthConstants

DEFAULT, DISABLED, ENABLED, FOCUSED, MOUSE_OVER, PRESSED, SELECTED

Modifier and Type	Field	Description
static final int	DEFAULT	Indicates the region is the default.
static final int	DISABLED	Primary state indicating the region is not enabled.
static final int	ENABLED	Primary state indicating the component is enabled.
static final int	FOCUSED	Indicates the region has focus.
static final int	MOUSE_OVER	Primary state indicating the mouse is over the region.
static final int	PRESSED	Primary state indicating the region is in a pressed state.
static final int	SELECTED	Indicates the region is selected.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SynthSliderUI(JSlider c)	Constructs a SynthSliderUI.

Method Summary

Modifier and Type	Method	Description
protected void	calculateGeometry()	Calculates the geometry.
protected void	calculateThumbLocation()	Calculates the thumb location.
protected BasicSliderUI.TrackListener	createTrackListener(JSlider s)	Creates a track listener.
static ComponentUI	createUI(JComponent c)	Creates a new UI object for the given component.
int	getBaseline(JComponent c, int width, int height)	Returns the baseline.
SynthContext	getContext(JComponent c)	Returns the Context for the specified component.
Dimension	getMinimumSize(JComponent c)	Returns the minimum size.
Dimension	getPreferredSize(JComponent c)	Returns the preferred size.
protected Dimension	getThumbSize()	Returns the thumb size.
protected void	installDefaults(JSlider slider)	Installs the defaults.
protected void	installListeners(JSlider slider)	Installs listeners.
protected void	layout()	Lays out the slider.
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 slider thumb.
protected void	paintTrack(SynthContext context, Graphics g, Rectangle trackBounds)	Paints the slider track.
void	propertyChange(PropertyChangeEvent e)	This method gets called when a bound property is changed.
protected void	recalculateIfInsetsChanged()	Recalculates if the insets have changed.
void	setThumbLocation(int x, int y)	Sets the thumb location.
protected void	uninstallDefaults(JSlider slider)	Uninstalls default setting.
protected void	uninstallListeners(JSlider slider)	Uninstalls listeners.
void	update(Graphics g, JComponent c)	Notifies this UI delegate to repaint the specified component.
int	valueForXPosition(int xPos)	Returns the value at the x position.
int	valueForYPosition(int yPos)	Returns the value at the y position.
protected int	xPositionForValue(int value)	Returns the x position for a value.
protected int	yPositionForValue(int value, int trackY, int trackHeight)	Returns the y location for the specified value.

Methods inherited from class BasicSliderUI

calculateContentRect, calculateFocusRect, calculateLabelRect, calculateThumbSize, calculateTickRect, calculateTrackBuffer, calculateTrackRect, createChangeListener, createComponentListener, createFocusListener, createPropertyChangeListener, createScrollListener, drawInverted, getBaselineResizeBehavior, getFocusColor, getHeightOfHighValueLabel, getHeightOfLowValueLabel, getHeightOfTallestLabel, getHighestValue, getHighestValueLabel, getHighlightColor, getLowestValue, getLowestValueLabel, getMaximumSize, getMinimumHorizontalSize, getMinimumVerticalSize, getPreferredHorizontalSize, getPreferredVerticalSize, getShadowColor, getTickLength, getWidthOfHighValueLabel, getWidthOfLowValueLabel, getWidthOfWidestLabel, installKeyboardActions, installUI, isDragging, labelsHaveSameBaselines, paintFocus, paintHorizontalLabel, paintLabels, paintMajorTickForHorizSlider, paintMajorTickForVertSlider, paintMinorTickForHorizSlider, paintMinorTickForVertSlider, paintThumb, paintTicks, paintTrack, paintVerticalLabel, recalculateIfOrientationChanged, scrollByBlock, scrollByUnit, scrollDueToClickInTrack, uninstallKeyboardActions, uninstallUI, yPositionForValue

Modifier and Type	Method	Description
protected void	calculateContentRect()	Calculates the content rectangle.
protected void	calculateFocusRect()	Calculates the focus rectangle.
protected void	calculateLabelRect()	Calculates the label rectangle.
protected void	calculateThumbSize()	Calculates the thumb size rectangle.
protected void	calculateTickRect()	Calculates the tick rectangle.
protected void	calculateTrackBuffer()	Calculates the track buffer.
protected void	calculateTrackRect()	Calculates the track rectangle.
protected ChangeListener	createChangeListener(JSlider slider)	Creates a change listener.
protected ComponentListener	createComponentListener(JSlider slider)	Creates a composite listener.
protected FocusListener	createFocusListener(JSlider slider)	Creates a focus listener.
protected PropertyChangeListener	createPropertyChangeListener(JSlider slider)	Creates a property change listener.
protected BasicSliderUI.ScrollListener	createScrollListener(JSlider slider)	Creates a scroll listener.
protected boolean	drawInverted()	Draws inverted.
Component.BaselineResizeBehavior	getBaselineResizeBehavior(JComponent c)	Returns an enum indicating how the baseline of the component changes as the size changes.
protected Color	getFocusColor()	Returns the focus color.
protected int	getHeightOfHighValueLabel()	Returns the height of the highest value label.
protected int	getHeightOfLowValueLabel()	Returns the height of the lowest value label.
protected int	getHeightOfTallestLabel()	Returns the height of the tallest label.
protected Integer	getHighestValue()	Returns the biggest value that has an entry in the label table.
protected Component	getHighestValueLabel()	Returns the label that corresponds to the lowest slider value in the label table.
protected Color	getHighlightColor()	Returns the highlight color.
protected Integer	getLowestValue()	Returns the smallest value that has an entry in the label table.
protected Component	getLowestValueLabel()	Returns the label that corresponds to the highest slider value in the label table.
Dimension	getMaximumSize(JComponent c)	Returns the maximum size.
Dimension	getMinimumHorizontalSize()	Returns the minimum horizontal size.
Dimension	getMinimumVerticalSize()	Returns the minimum vertical size.
Dimension	getPreferredHorizontalSize()	Returns the preferred horizontal size.
Dimension	getPreferredVerticalSize()	Returns the preferred vertical size.
protected Color	getShadowColor()	Returns the shadow color.
protected int	getTickLength()	Gets the height of the tick area for horizontal sliders and the width of the tick area for vertical sliders.
protected int	getWidthOfHighValueLabel()	Returns the width of the highest value label.
protected int	getWidthOfLowValueLabel()	Returns the width of the lowest value label.
protected int	getWidthOfWidestLabel()	Returns the width of the widest label.
protected void	installKeyboardActions(JSlider slider)	Installs keyboard actions.
void	installUI(JComponent c)	Installs a UI.
protected boolean	isDragging()	Returns true if the user is dragging the slider.
protected boolean	labelsHaveSameBaselines()	Returns true if all the labels from the label table have the same baseline.
void	paintFocus(Graphics g)	Paints focus.
protected void	paintHorizontalLabel(Graphics g, int value, Component label)	Called for every label in the label table.
void	paintLabels(Graphics g)	Paints the labels.
protected void	paintMajorTickForHorizSlider(Graphics g, Rectangle tickBounds, int x)	Paints major tick for horizontal slider.
protected void	paintMajorTickForVertSlider(Graphics g, Rectangle tickBounds, int y)	Paints major tick for vertical slider.
protected void	paintMinorTickForHorizSlider(Graphics g, Rectangle tickBounds, int x)	Paints minor tick for horizontal slider.
protected void	paintMinorTickForVertSlider(Graphics g, Rectangle tickBounds, int y)	Paints minor tick for vertical slider.
void	paintThumb(Graphics g)	Paints the thumb.
void	paintTicks(Graphics g)	Paints ticks.
void	paintTrack(Graphics g)	Paints track.
protected void	paintVerticalLabel(Graphics g, int value, Component label)	Called for every label in the label table.
protected void	recalculateIfOrientationChanged()	Recalculates if the orientation has changed.
void	scrollByBlock(int direction)	Scrolls by block.
void	scrollByUnit(int direction)	Scrolls by unit.
protected void	scrollDueToClickInTrack(int dir)	This function is called when a mousePressed was detected in the track, not in the thumb.
protected void	uninstallKeyboardActions(JSlider slider)	Uninstalls keyboard actions.
void	uninstallUI(JComponent c)	Uninstalls a UI.
protected int	yPositionForValue(int value)	Returns the y position for a value.

Methods inherited from class ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount

Modifier and Type	Method	Description
boolean	contains(JComponent c, int x, int y)	Returns true if the specified x,y location is contained within the look and feel's defined shape of the specified component.
Accessible	getAccessibleChild(JComponent c, int i)	Returns the ith Accessible child of the object.
int	getAccessibleChildrenCount(JComponent c)	Returns the number of accessible children in the object.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Modifier and Type	Method	Description
protected Object	clone()	Creates and returns a copy of this object.
boolean	equals(Object obj)	Indicates whether some other object is "equal to" this one.
protected void	finalize()	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
final Class<?>	getClass()	Returns the runtime class of this Object.
int	hashCode()	Returns a hash code value for this object.
final void	notify()	Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll()	Wakes up all threads that are waiting on this object's monitor.
String	toString()	Returns a string representation of the object.
final void	wait()	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
final void	wait(long timeoutMillis)	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
final void	wait(long timeoutMillis, int nanos)	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Constructor Details

SynthSliderUI

protected SynthSliderUI(JSlider c)

Constructs a SynthSliderUI.

Parameters:

c - a slider

Method Details

createUI

public static ComponentUI createUI(JComponent c)

Creates a new UI object for the given component.

Parameters:

c - component to create UI object for

Returns:

the UI object

installDefaults

protected void installDefaults(JSlider slider)

Installs the defaults.

Overrides:

installDefaults in class BasicSliderUI

Parameters:

slider - a slider

uninstallDefaults

protected void uninstallDefaults(JSlider slider)

Uninstalls default setting. This method is called when a LookAndFeel is uninstalled.

Overrides:

uninstallDefaults in class BasicSliderUI

Parameters:

slider - a slider

installListeners

protected void installListeners(JSlider slider)

Installs listeners.

Overrides:

installListeners in class BasicSliderUI

Parameters:

slider - a slider

uninstallListeners

protected void uninstallListeners(JSlider slider)

Uninstalls listeners.

Overrides:

uninstallListeners in class BasicSliderUI

Parameters:

slider - a slider

createTrackListener

protected BasicSliderUI.TrackListener createTrackListener(JSlider s)

Creates a track listener.

Overrides:

createTrackListener in class BasicSliderUI

Parameters:

s - a slider

Returns:

a track listener

getBaseline

public int getBaseline(JComponent c,
 int width,
 int height)

Returns the baseline.

Overrides:

getBaseline in class BasicSliderUI

Parameters:

c - JComponent baseline is being requested for

width - the width to get the baseline for

height - the height to get the baseline for

Returns:

baseline or a value < 0 indicating there is no reasonable baseline

See Also:

• JComponent.getBaseline(int, int)

getPreferredSize

public Dimension getPreferredSize(JComponent c)

Returns the preferred size.

Overrides:

getPreferredSize in class BasicSliderUI

Parameters:

c - a component

Returns:

the preferred size

See Also:

• JComponent.getPreferredSize()
• LayoutManager.preferredLayoutSize(Container)

getMinimumSize

public Dimension getMinimumSize(JComponent c)

Returns the minimum size.

Overrides:

getMinimumSize in class BasicSliderUI

Parameters:

c - a component

Returns:

the minimum size

See Also:

• JComponent.getMinimumSize()
• LayoutManager.minimumLayoutSize(Container)
• ComponentUI.getPreferredSize(JComponent)

calculateGeometry

protected void calculateGeometry()

Calculates the geometry.

Overrides:

calculateGeometry in class BasicSliderUI

layout

protected void layout()

Lays out the slider.

calculateThumbLocation

protected void calculateThumbLocation()

Calculates the thumb location.

Overrides:

calculateThumbLocation in class BasicSliderUI

setThumbLocation

public void setThumbLocation(int x,
 int y)

Sets the thumb location.

Overrides:

setThumbLocation in class BasicSliderUI

Parameters:

x - the x coordinate

y - the y coordinate

xPositionForValue

protected int xPositionForValue(int value)

Returns the x position for a value.

Overrides:

xPositionForValue in class BasicSliderUI

Parameters:

value - the value

Returns:

the x position for a value

yPositionForValue

protected int yPositionForValue(int value,
 int trackY,
 int trackHeight)

Returns the y location for the specified value. No checking is done on the arguments. In particular if trackHeight is negative undefined results may occur.

Overrides:

yPositionForValue in class BasicSliderUI

Parameters:

value - the slider value to get the location for

trackY - y-origin of the track

trackHeight - the height of the track

Returns:

the y location for the specified value of the slider

valueForYPosition

public int valueForYPosition(int yPos)

Returns the value at the y position. If yPos is beyond the track at the bottom or the top, this method sets the value to either the minimum or maximum value of the slider, depending on if the slider is inverted or not.

Overrides:

valueForYPosition in class BasicSliderUI

Parameters:

yPos - the location of the slider along the y axis

Returns:

the value at the y position

valueForXPosition

public int valueForXPosition(int xPos)

Returns the value at the x position. If xPos is beyond the track at the left or the right, this method sets the value to either the minimum or maximum value of the slider, depending on if the slider is inverted or not.

Overrides:

valueForXPosition in class BasicSliderUI

Parameters:

xPos - the location of the slider along the x axis

Returns:

the value of the x position

getThumbSize

protected Dimension getThumbSize()

Returns the thumb size.

Overrides:

getThumbSize in class BasicSliderUI

Returns:

the thumb size

recalculateIfInsetsChanged

protected void recalculateIfInsetsChanged()

Recalculates if the insets have changed.

Overrides:

recalculateIfInsetsChanged in class BasicSliderUI

getContext

public SynthContext getContext(JComponent c)

Returns the Context for the specified component.

Specified by:

getContext in interface SynthUI

Parameters:

c - Component requesting SynthContext.

Returns:

SynthContext describing component.

update

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.

Overrides:

update in class ComponentUI

Parameters:

g - the Graphics object used for painting

c - the component being painted

See Also:

• paint(SynthContext,Graphics)

paint

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.

Overrides:

paint in class BasicSliderUI

Parameters:

g - the Graphics object used for painting

c - the component being painted

See Also:

• paint(SynthContext,Graphics)

paint

protected void paint(SynthContext context,
 Graphics g)

Paints the specified component.

Parameters:

context - context for the component being painted

g - the Graphics object used for painting

See Also:

• update(Graphics,JComponent)

paintBorder

public void paintBorder(SynthContext context,
 Graphics g,
 int x,
 int y,
 int w,
 int h)

Paints the border.

Specified by:

paintBorder in interface SynthUI

Parameters:

context - a component context

g - Graphics to paint on

x - the X coordinate

y - the Y coordinate

w - width of the border

h - height of the border

paintThumb

protected void paintThumb(SynthContext context,
 Graphics g,
 Rectangle thumbBounds)

Paints the slider thumb.

Parameters:

context - context for the component being painted

g - Graphics object used for painting

thumbBounds - bounding box for the thumb

paintTrack

protected void paintTrack(SynthContext context,
 Graphics g,
 Rectangle trackBounds)

Paints the slider track.

Parameters:

context - context for the component being painted

g - Graphics object used for painting

trackBounds - bounding box for the track

propertyChange

public void propertyChange(PropertyChangeEvent e)

This method gets called when a bound property is changed.

Specified by:

propertyChange in interface PropertyChangeListener

Parameters:

e - A PropertyChangeEvent object describing the event source and the property that has changed.