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javax.swing
Class JSlider


java.lang.Object
  extended by java.awt.Component
      extended by java.awt.Container
          extended by javax.swing.JComponent
              extended by javax.swing.JSlider
All Implemented Interfaces:
ImageObserver , MenuContainer , Serializable , Accessible , SwingConstants 
public class JSlider
extends JComponent
implements SwingConstants, Accessible

A component that lets the user graphically select a value by sliding a knob within a bounded interval. The slider can show both major tick marks and minor tick marks between them. The number of values between the tick marks is controlled with setMajorTickSpacing and setMinorTickSpacing.

For further information and examples see How to Use Sliders , a section in The Java Tutorial.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans TM has been added to the java.beans package. Please see XMLEncoder .

Nested Class Summary
protected  class JSlider.AccessibleJSlider
          This class implements accessibility support for the JSlider class.
 
Nested classes/interfaces inherited from class javax.swing. JComponent
JComponent.AccessibleJComponent
 
Nested classes/interfaces inherited from class java.awt. Container
Container.AccessibleAWTContainer
 
Nested classes/interfaces inherited from class java.awt. Component
Component.AccessibleAWTComponent , Component.BaselineResizeBehavior , Component.BltBufferStrategy , Component.FlipBufferStrategy
 
Field Summary
protected   ChangeEvent changeEvent
          Only one ChangeEvent is needed per slider instance since the event's only (read-only) state is the source property.
protected   ChangeListener changeListener
          The changeListener (no suffix) is the listener we add to the Sliders model.
protected  int majorTickSpacing
          The number of values between the major tick marks -- the larger marks that break up the minor tick marks.
protected  int minorTickSpacing
          The number of values between the minor tick marks -- the smaller marks that occur between the major tick marks.
protected  int orientation
           
protected   BoundedRangeModel sliderModel
          The data model that handles the numeric maximum value, minimum value, and current-position value for the slider.
protected  boolean snapToTicks
          If true, the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.
 
Fields inherited from class javax.swing. JComponent
accessibleContext , listenerList , TOOL_TIP_TEXT_KEY , ui , UNDEFINED_CONDITION , WHEN_ANCESTOR_OF_FOCUSED_COMPONENT , WHEN_FOCUSED , WHEN_IN_FOCUSED_WINDOW
 
Fields inherited from class java.awt. Component
BOTTOM_ALIGNMENT , CENTER_ALIGNMENT , LEFT_ALIGNMENT , RIGHT_ALIGNMENT , TOP_ALIGNMENT
 
Fields inherited from 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 inherited from interface java.awt.image. ImageObserver
ABORT , ALLBITS , ERROR , FRAMEBITS , HEIGHT , PROPERTIES , SOMEBITS , WIDTH
 
Constructor Summary
JSlider ()
          Creates a horizontal slider with the range 0 to 100 and an initial value of 50.
JSlider ( BoundedRangeModel  brm)
          Creates a horizontal slider using the specified BoundedRangeModel.
JSlider (int orientation)
          Creates a slider using the specified orientation with the range 0 to 100 and an initial value of 50.
JSlider (int min, int max)
          Creates a horizontal slider using the specified min and max with an initial value equal to the average of the min plus max.
JSlider (int min, int max, int value)
          Creates a horizontal slider using the specified min, max and value.
JSlider (int orientation, int min, int max, int value)
          Creates a slider with the specified orientation and the specified minimum, maximum, and initial values.
 
Method Summary
 void addChangeListener ( ChangeListener  l)
          Adds a ChangeListener to the slider.
protected   ChangeListener createChangeListener ()
          Subclasses that want to handle model ChangeEvents differently can override this method to return their own ChangeListener implementation.
  Hashtable createStandardLabels (int increment)
          Creates a hashtable that will draw text labels starting at the slider minimum using the increment specified.
  Hashtable createStandardLabels (int increment, int start)
          Creates a hashtable that will draw text labels starting at the start point specified using the increment specified.
protected  void fireStateChanged ()
          Send a ChangeEvent, whose source is this Slider, to each listener.
  AccessibleContext getAccessibleContext ()
          Gets the AccessibleContext associated with this JSlider.
  ChangeListener [] getChangeListeners ()
          Returns an array of all the ChangeListeners added to this JSlider with addChangeListener().
 int getExtent ()
          Returns the "extent" -- the range of values "covered" by the knob.
 boolean getInverted ()
          Returns true if the value-range shown for the slider is reversed,
  Dictionary getLabelTable ()
          Returns the dictionary of what labels to draw at which values.
 int getMajorTickSpacing ()
          This method returns the major tick spacing.
 int getMaximum ()
          Returns the maximum value supported by the slider.
 int getMinimum ()
          Returns the minimum value supported by the slider.
 int getMinorTickSpacing ()
          This method returns the minor tick spacing.
  BoundedRangeModel getModel ()
          Returns data model that handles the sliders three fundamental properties: minimum, maximum, value.
 int getOrientation ()
          Return this slider's vertical or horizontal orientation.
 boolean getPaintLabels ()
          Tells if labels are to be painted.
 boolean getPaintTicks ()
          Tells if tick marks are to be painted.
 boolean getPaintTrack ()
          Tells if the track (area the slider slides in) is to be painted.
 boolean getSnapToTicks ()
          Returns true if the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.
  SliderUI getUI ()
          Gets the UI object which implements the L&F for this component.
  String getUIClassID ()
          Returns the name of the L&F class that renders this component.
 int getValue ()
          Returns the sliders value.
 boolean getValueIsAdjusting ()
          True if the slider knob is being dragged.
protected   String paramString ()
          Returns a string representation of this JSlider.
 void removeChangeListener ( ChangeListener  l)
          Removes a ChangeListener from the slider.
 void setExtent (int extent)
          Sets the size of the range "covered" by the knob.
 void setFont ( Font
          Sets the font for this component.
 void setInverted (boolean b)
          Specify true to reverse the value-range shown for the slider and false to put the value range in the normal order.
 void setLabelTable ( Dictionary  labels)
          Used to specify what label will be drawn at any given value.
 void setMajorTickSpacing (int n)
          This method sets the major tick spacing.
 void setMaximum (int maximum)
          Sets the models maximum property.
 void setMinimum (int minimum)
          Sets the models minimum property.
 void setMinorTickSpacing (int n)
          This method sets the minor tick spacing.
 void setModel ( BoundedRangeModel  newModel)
          Sets the model that handles the sliders three fundamental properties: minimum, maximum, value.
 void setOrientation (int orientation)
          Set the scrollbars orientation to either VERTICAL or HORIZONTAL.
 void setPaintLabels (boolean b)
          Determines whether labels are painted on the slider.
 void setPaintTicks (boolean b)
          Determines whether tick marks are painted on the slider.
 void setPaintTrack (boolean b)
          Determines whether the track is painted on the slider.
 void setSnapToTicks (boolean b)
          Specifying true makes the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.
 void setUI ( SliderUI  ui)
          Sets the UI object which implements the L&F for this component.
 void setValue (int n)
          Sets the sliders current value.
 void setValueIsAdjusting (boolean b)
          Sets the models valueIsAdjusting property.
protected  void updateLabelUIs ()
          Resets the UI property to a value from the current look and feel.
 void updateUI ()
          Resets the UI property to a value from the current look and feel.
 
Methods inherited from class javax.swing. JComponent
addAncestorListener , addNotify , addVetoableChangeListener , computeVisibleRect , contains , createToolTip , disable , enable , firePropertyChange , firePropertyChange , firePropertyChange , fireVetoableChange , getActionForKeyStroke , getActionMap , getAlignmentX , getAlignmentY , getAncestorListeners , getAutoscrolls , getBaseline , getBaselineResizeBehavior , getBorder , getBounds , getClientProperty , getComponentGraphics , getComponentPopupMenu , getConditionForKeyStroke , getDebugGraphicsOptions , getDefaultLocale , getFontMetrics , getGraphics , getHeight , getInheritsPopupMenu , getInputMap , getInputMap , getInputVerifier , getInsets , getInsets , getListeners , getLocation , getMaximumSize , getMinimumSize , getNextFocusableComponent , getPopupLocation , getPreferredSize , getRegisteredKeyStrokes , getRootPane , getSize , getToolTipLocation , getToolTipText , getToolTipText , getTopLevelAncestor , getTransferHandler , getVerifyInputWhenFocusTarget , getVetoableChangeListeners , getVisibleRect , getWidth , getX , getY , grabFocus , isDoubleBuffered , isLightweightComponent , isManagingFocus , isOpaque , isOptimizedDrawingEnabled , isPaintingForPrint , isPaintingTile , isRequestFocusEnabled , isValidateRoot , paint , paintBorder , paintChildren , paintComponent , paintImmediately , paintImmediately , print , printAll , printBorder , printChildren , printComponent , processComponentKeyEvent , processKeyBinding , processKeyEvent , processMouseEvent , processMouseMotionEvent , putClientProperty , registerKeyboardAction , registerKeyboardAction , removeAncestorListener , removeNotify , removeVetoableChangeListener , repaint , repaint , requestDefaultFocus , requestFocus , requestFocus , requestFocusInWindow , requestFocusInWindow , resetKeyboardActions , reshape , revalidate , scrollRectToVisible , setActionMap , setAlignmentX , setAlignmentY , setAutoscrolls , setBackground , setBorder , setComponentPopupMenu , setDebugGraphicsOptions , setDefaultLocale , setDoubleBuffered , setEnabled , setFocusTraversalKeys , setFont , setForeground , setInheritsPopupMenu , setInputMap , setInputVerifier , setMaximumSize , setMinimumSize , setNextFocusableComponent , setOpaque , setPreferredSize , setRequestFocusEnabled , setToolTipText , setTransferHandler , setUI , setVerifyInputWhenFocusTarget , setVisible , unregisterKeyboardAction , update
 
Methods inherited from class java.awt. Container
add , add , add , add , add , addContainerListener , addImpl , addPropertyChangeListener , addPropertyChangeListener , applyComponentOrientation , areFocusTraversalKeysSet , countComponents , deliverEvent , doLayout , findComponentAt , findComponentAt , getComponent , getComponentAt , getComponentAt , getComponentCount , getComponents , getComponentZOrder , getContainerListeners , getFocusTraversalKeys , getFocusTraversalPolicy , getLayout , getMousePosition , insets , invalidate , isAncestorOf , isFocusCycleRoot , isFocusCycleRoot , isFocusTraversalPolicyProvider , isFocusTraversalPolicySet , layout , list , list , locate , minimumSize , paintComponents , preferredSize , printComponents , processContainerEvent , processEvent , remove , remove , removeAll , removeContainerListener , setComponentZOrder , setFocusCycleRoot , setFocusTraversalPolicy , setFocusTraversalPolicyProvider , setLayout , transferFocusBackward , transferFocusDownCycle , validate , validateTree
 
Methods inherited from class java.awt. Component
action , add , addComponentListener , addFocusListener , addHierarchyBoundsListener , addHierarchyListener , addInputMethodListener , addKeyListener , addMouseListener , addMouseMotionListener , addMouseWheelListener , bounds , checkImage , checkImage , coalesceEvents , contains , createImage , createImage , createVolatileImage , createVolatileImage , disableEvents , dispatchEvent , enable , enableEvents , enableInputMethods , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , getBackground , getBounds , getColorModel , getComponentListeners , getComponentOrientation , getCursor , getDropTarget , getFocusCycleRootAncestor , getFocusListeners , getFocusTraversalKeysEnabled , getFont , getForeground , getGraphicsConfiguration , getHierarchyBoundsListeners , getHierarchyListeners , getIgnoreRepaint , getInputContext , getInputMethodListeners , getInputMethodRequests , getKeyListeners , getLocale , getLocation , getLocationOnScreen , getMouseListeners , getMouseMotionListeners , getMousePosition , getMouseWheelListeners , getName , getParent , getPeer , getPropertyChangeListeners , getPropertyChangeListeners , getSize , getToolkit , getTreeLock , gotFocus , handleEvent , hasFocus , hide , imageUpdate , inside , isBackgroundSet , isCursorSet , isDisplayable , isEnabled , isFocusable , isFocusOwner , isFocusTraversable , isFontSet , isForegroundSet , isLightweight , isMaximumSizeSet , isMinimumSizeSet , isPreferredSizeSet , isShowing , isValid , isVisible , keyDown , keyUp , list , list , list , location , lostFocus , mouseDown , mouseDrag , mouseEnter , mouseExit , mouseMove , mouseUp , move , nextFocus , paintAll , postEvent , prepareImage , prepareImage , processComponentEvent , processFocusEvent , processHierarchyBoundsEvent , processHierarchyEvent , processInputMethodEvent , processMouseWheelEvent , remove , removeComponentListener , removeFocusListener , removeHierarchyBoundsListener , removeHierarchyListener , removeInputMethodListener , removeKeyListener , removeMouseListener , removeMouseMotionListener , removeMouseWheelListener , removePropertyChangeListener , removePropertyChangeListener , repaint , repaint , repaint , resize , resize , setBounds , setBounds , setComponentOrientation , setCursor , setDropTarget , setFocusable , setFocusTraversalKeysEnabled , setIgnoreRepaint , setLocale , setLocation , setLocation , setName , setSize , setSize , show , show , size , toString , transferFocus , transferFocusUpCycle
 
Methods inherited from class java.lang. Object
clone , equals , finalize , getClass , hashCode , notify , notifyAll , wait , wait , wait
 

Field Detail

sliderModel


protected BoundedRangeModel sliderModel
The data model that handles the numeric maximum value, minimum value, and current-position value for the slider.

majorTickSpacing


protected int majorTickSpacing
The number of values between the major tick marks -- the larger marks that break up the minor tick marks.

minorTickSpacing


protected int minorTickSpacing
The number of values between the minor tick marks -- the smaller marks that occur between the major tick marks.

See Also:
setMinorTickSpacing(int)

snapToTicks


protected boolean snapToTicks
If true, the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob. The default is false.

See Also:
setSnapToTicks(boolean)

orientation


protected int orientation
See Also:
setOrientation(int)

changeListener


protected ChangeListener changeListener
The changeListener (no suffix) is the listener we add to the Sliders model. By default this listener just forwards events to ChangeListeners (if any) added directly to the slider.

See Also:
addChangeListener(javax.swing.event.ChangeListener) , createChangeListener()

changeEvent


protected transient ChangeEvent changeEvent
Only one ChangeEvent is needed per slider instance since the event's only (read-only) state is the source property. The source of events generated here is always "this". The event is lazily created the first time that an event notification is fired.

See Also:
fireStateChanged()
Constructor Detail

JSlider


public JSlider()
Creates a horizontal slider with the range 0 to 100 and an initial value of 50.

JSlider


public JSlider(int orientation)
Creates a slider using the specified orientation with the range 0 to 100 and an initial value of 50.

JSlider


public JSlider(int min,
               int max)
Creates a horizontal slider using the specified min and max with an initial value equal to the average of the min plus max.

JSlider


public JSlider(int min,
               int max,
               int value)
Creates a horizontal slider using the specified min, max and value.

JSlider


public JSlider(int orientation,
               int min,
               int max,
               int value)
Creates a slider with the specified orientation and the specified minimum, maximum, and initial values.

Throws:
IllegalArgumentException - if orientation is not one of VERTICAL, HORIZONTAL
See Also:
setOrientation(int) , setMinimum(int) , setMaximum(int) , setValue(int)

JSlider


public JSlider(BoundedRangeModel brm)
Creates a horizontal slider using the specified BoundedRangeModel.

Method Detail

getUI


public SliderUI getUI()
Gets the UI object which implements the L&F for this component.

Returns:
the SliderUI object that implements the Slider L&F

setUI


public void setUI(SliderUI ui)
Sets the UI object which implements the L&F for this component.

Parameters:
ui - the SliderUI L&F object
See Also:
UIDefaults.getUI(javax.swing.JComponent)

updateUI


public void updateUI()
Resets the UI property to a value from the current look and feel.

Overrides:
updateUI in class JComponent
See Also:
JComponent.updateUI()

getUIClassID


public String getUIClassID()
Returns the name of the L&F class that renders this component.

Overrides:
getUIClassID in class JComponent
Returns:
"SliderUI"
See Also:
JComponent.getUIClassID() , UIDefaults.getUI(javax.swing.JComponent)

createChangeListener


protected ChangeListener createChangeListener()
Subclasses that want to handle model ChangeEvents differently can override this method to return their own ChangeListener implementation. The default ChangeListener just forwards ChangeEvents to the ChangeListeners added directly to the slider.

See Also:
fireStateChanged()

addChangeListener


public void addChangeListener(ChangeListener l)
Adds a ChangeListener to the slider.

Parameters:
l - the ChangeListener to add
See Also:
fireStateChanged() , removeChangeListener(javax.swing.event.ChangeListener)

removeChangeListener


public void removeChangeListener(ChangeListener l)
Removes a ChangeListener from the slider.

Parameters:
l - the ChangeListener to remove
See Also:
fireStateChanged() , addChangeListener(javax.swing.event.ChangeListener)

getChangeListeners


public ChangeListener[] getChangeListeners()
Returns an array of all the ChangeListeners added to this JSlider with addChangeListener().

Returns:
all of the ChangeListeners added or an empty array if no listeners have been added
Since:
1.4

fireStateChanged


protected void fireStateChanged()
Send a ChangeEvent, whose source is this Slider, to each listener. This method method is called each time a ChangeEvent is received from the model.

See Also:
addChangeListener(javax.swing.event.ChangeListener) , EventListenerList

getModel


public BoundedRangeModel getModel()
Returns data model that handles the sliders three fundamental properties: minimum, maximum, value.

See Also:
setModel(javax.swing.BoundedRangeModel)

setModel


public void setModel(BoundedRangeModel newModel)
Sets the model that handles the sliders three fundamental properties: minimum, maximum, value.

See Also:
getModel()

getValue


public int getValue()
Returns the sliders value.

Returns:
the models value property
See Also:
setValue(int)

setValue


public void setValue(int n)
Sets the sliders current value. This method just forwards the value to the model.

See Also:
getValue()

getMinimum


public int getMinimum()
Returns the minimum value supported by the slider.

Returns:
the value of the models minimum property
See Also:
setMinimum(int)

setMinimum


public void setMinimum(int minimum)
Sets the models minimum property.

See Also:
getMinimum() , BoundedRangeModel.setMinimum(int)

getMaximum


public int getMaximum()
Returns the maximum value supported by the slider.

Returns:
the value of the models maximum property
See Also:
setMaximum(int)

setMaximum


public void setMaximum(int maximum)
Sets the models maximum property.

See Also:
getMaximum() , BoundedRangeModel.setMaximum(int)

getValueIsAdjusting


public boolean getValueIsAdjusting()
True if the slider knob is being dragged.

Returns:
the value of the models valueIsAdjusting property
See Also:
setValueIsAdjusting(boolean)

setValueIsAdjusting


public void setValueIsAdjusting(boolean b)
Sets the models valueIsAdjusting property. Slider look and feel implementations should set this property to true when a knob drag begins, and to false when the drag ends. The slider model will not generate ChangeEvents while valueIsAdjusting is true.

See Also:
getValueIsAdjusting() , BoundedRangeModel.setValueIsAdjusting(boolean)

getExtent


public int getExtent()
Returns the "extent" -- the range of values "covered" by the knob.

Returns:
an int representing the extent
See Also:
setExtent(int) , BoundedRangeModel.getExtent()

setExtent


public void setExtent(int extent)
Sets the size of the range "covered" by the knob. Most look and feel implementations will change the value by this amount if the user clicks on either side of the knob.

See Also:
getExtent() , BoundedRangeModel.setExtent(int)

getOrientation


public int getOrientation()
Return this slider's vertical or horizontal orientation.

Returns:
VERTICAL or HORIZONTAL
See Also:
setOrientation(int)

setOrientation


public void setOrientation(int orientation)
Set the scrollbars orientation to either VERTICAL or HORIZONTAL.

Throws:
IllegalArgumentException - if orientation is not one of VERTICAL, HORIZONTAL
See Also:
getOrientation()

setFont 


 
public void setFont ( Font font)
Sets the font for this component.

Overrides:
setFont in class JComponent
Parameters:
font - the desired Font for this component
Since:
1.6
See Also:
Component.getFont()

getLabelTable


public Dictionary getLabelTable()
Returns the dictionary of what labels to draw at which values.

Returns:
the Dictionary containing labels and where to draw them

setLabelTable


public void setLabelTable(Dictionary labels)
Used to specify what label will be drawn at any given value. The key-value pairs are of this format: { Integer value, java.swing.JComponent label }.

See Also:
createStandardLabels(int) , getLabelTable()

updateLabelUIs


protected void updateLabelUIs()
Resets the UI property to a value from the current look and feel.

See Also:
JComponent.updateUI()

createStandardLabels


public Hashtable createStandardLabels(int increment)
Creates a hashtable that will draw text labels starting at the slider minimum using the increment specified. If you call createStandardLabels( 10 ) and the slider minimum is zero, then it will make labels for the values 0, 10, 20, 30, and so on.

See Also:
setLabelTable(java.util.Dictionary)

createStandardLabels


public Hashtable createStandardLabels(int increment,
                                      int start)
Creates a hashtable that will draw text labels starting at the start point specified using the increment specified. If you call createStandardLabels( 10, 2 ), then it will make labels for the values 2, 12, 22, 32, and so on.

Throws:
IllegalArgumentException - if slider label start point out of range or if label increment is less than or equal to zero
See Also:
setLabelTable(java.util.Dictionary)

getInverted


public boolean getInverted()
Returns true if the value-range shown for the slider is reversed,

Returns:
true if the slider values are reversed from their normal order
See Also:
setInverted(boolean)

setInverted


public void setInverted(boolean b)
Specify true to reverse the value-range shown for the slider and false to put the value range in the normal order. The order depends on the slider's ComponentOrientation property. Normal (non-inverted) horizontal sliders with a ComponentOrientation value of LEFT_TO_RIGHT have their maximum on the right. Normal horizontal sliders with a ComponentOrientation value of RIGHT_TO_LEFT have their maximum on the left. Normal vertical sliders have their maximum on the top. These labels are reversed when the slider is inverted.

Parameters:
b - true to reverse the slider values from their normal order

getMajorTickSpacing


public int getMajorTickSpacing()
This method returns the major tick spacing. The number that is returned represents the distance, measured in values, between each major tick mark. If you have a slider with a range from 0 to 50 and the major tick spacing is set to 10, you will get major ticks next to the following values: 0, 10, 20, 30, 40, 50.

Returns:
the number of values between major ticks
See Also:
setMajorTickSpacing(int)

setMajorTickSpacing


public void setMajorTickSpacing(int n)
This method sets the major tick spacing. The number that is passed-in represents the distance, measured in values, between each major tick mark. If you have a slider with a range from 0 to 50 and the major tick spacing is set to 10, you will get major ticks next to the following values: 0, 10, 20, 30, 40, 50.

See Also:
getMajorTickSpacing()

getMinorTickSpacing


public int getMinorTickSpacing()
This method returns the minor tick spacing. The number that is returned represents the distance, measured in values, between each minor tick mark. If you have a slider with a range from 0 to 50 and the minor tick spacing is set to 10, you will get minor ticks next to the following values: 0, 10, 20, 30, 40, 50.

Returns:
the number of values between minor ticks
See Also:
getMinorTickSpacing()

setMinorTickSpacing


public void setMinorTickSpacing(int n)
This method sets the minor tick spacing. The number that is passed-in represents the distance, measured in values, between each minor tick mark. If you have a slider with a range from 0 to 50 and the minor tick spacing is set to 10, you will get minor ticks next to the following values: 0, 10, 20, 30, 40, 50.

See Also:
getMinorTickSpacing()

getSnapToTicks


public boolean getSnapToTicks()
Returns true if the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.

Returns:
true if the value snaps to the nearest tick mark, else false
See Also:
setSnapToTicks(boolean)

setSnapToTicks


public void setSnapToTicks(boolean b)
Specifying true makes the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.

Parameters:
b - true to snap the knob to the nearest tick mark
See Also:
getSnapToTicks()

getPaintTicks


public boolean getPaintTicks()
Tells if tick marks are to be painted.

Returns:
true if tick marks are painted, else false
See Also:
setPaintTicks(boolean)

setPaintTicks


public void setPaintTicks(boolean b)
Determines whether tick marks are painted on the slider.

See Also:
getPaintTicks()

getPaintTrack


public boolean getPaintTrack()
Tells if the track (area the slider slides in) is to be painted.

Returns:
true if track is painted, else false
See Also:
setPaintTrack(boolean)

setPaintTrack


public void setPaintTrack(boolean b)
Determines whether the track is painted on the slider.

See Also:
getPaintTrack()

getPaintLabels


public boolean getPaintLabels()
Tells if labels are to be painted.

Returns:
true if labels are painted, else false
See Also:
setPaintLabels(boolean)

setPaintLabels


public void setPaintLabels(boolean b)
Determines whether labels are painted on the slider.

See Also:
getPaintLabels()

paramString


protected String paramString()
Returns a string representation of this JSlider. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null.

Overrides:
paramString in class JComponent
Returns:
a string representation of this JSlider.

getAccessibleContext


public AccessibleContext getAccessibleContext()
Gets the AccessibleContext associated with this JSlider. For sliders, the AccessibleContext takes the form of an AccessibleJSlider. A new AccessibleJSlider instance is created if necessary.

Specified by:
getAccessibleContext in interface Accessible
Overrides:
getAccessibleContext in class JComponent
Returns:
an AccessibleJSlider that serves as the AccessibleContext of this JSlider