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javax.swing
Class JSlider
java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.JSlider
-
All Implemented Interfaces:
-
Accessible
,
ImageObserver
,
MenuContainer
,
Serializable
,
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.
For the keyboard keys used by this component in the standard Look and Feel (L&F) renditions, see the
JSlider key assignments
.
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 inherited from class java.awt.
Component
|
Component.AccessibleAWTComponent
,
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 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 |
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
,
addPropertyChangeListener
,
addPropertyChangeListener
,
addVetoableChangeListener
,
computeVisibleRect
,
contains
,
createToolTip
,
disable
,
enable
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
fireVetoableChange
,
getActionForKeyStroke
,
getActionMap
,
getAlignmentX
,
getAlignmentY
,
getAncestorListeners
,
getAutoscrolls
,
getBorder
,
getBounds
,
getClientProperty
,
getComponentGraphics
,
getComponentPopupMenu
,
getConditionForKeyStroke
,
getDebugGraphicsOptions
,
getDefaultLocale
,
getFontMetrics
,
getGraphics
,
getHeight
,
getInheritsPopupMenu
,
getInputMap
,
getInputMap
,
getInputVerifier
,
getInsets
,
getInsets
,
getListeners
,
getLocation
,
getMaximumSize
,
getMinimumSize
,
getNextFocusableComponent
,
getPopupLocation
getPreferredSize
,
getPreferredSize
getPropertyChangeListeners
,
getPropertyChangeListeners
,
getRegisteredKeyStrokes
,
getRootPane
,
getSize
,
getToolTipLocation
,
getToolTipText
,
getToolTipText
,
getTopLevelAncestor
,
getTransferHandler
,
getVerifyInputWhenFocusTarget
,
getVetoableChangeListeners
,
getVisibleRect
,
getWidth
,
getX
,
getY
,
grabFocus
,
isDoubleBuffered
,
isLightweightComponent
,
isManagingFocus
,
isMaximumSizeSet
,
isMinimumSizeSet
,
isOpaque
,
isOptimizedDrawingEnabled
,
isPaintingTile
,
isPreferredSizeSet
,
isRequestFocusEnabled
,
isValidateRoot
,
paint
,
paintBorder
,
paintChildren
,
paintComponent
,
paintImmediately
,
paintImmediately
,
print
,
printAll
,
printBorder
,
printChildren
,
printComponent
,
processComponentKeyEvent
,
processKeyBinding
,
processKeyEvent
,
processMouseEvent
,
processMouseMotionEvent
,
putClientProperty
,
registerKeyboardAction
,
registerKeyboardAction
,
removeAncestorListener
,
removeNotify
,
removePropertyChangeListener
,
removePropertyChangeListener
,
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
,
setFocusCycleRoot
setFocusTraversalKeys
,
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
,
getFontMetrics
,
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
,
processMouseEvent
,
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
|
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()
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.
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()
getLabelTable
public Dictionary getLabelTable()
-
Returns the dictionary of what labels to draw at which values.
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Returns:
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the Dictionary containing labels and where to draw them
setLabelTable
public void setLabelTable(Dictionary labels)
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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 }.
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See Also:
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createStandardLabels(int)
,
getLabelTable()
updateLabelUIs
protected void updateLabelUIs()
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Resets the UI property to a value from the current look and feel.
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See Also:
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JComponent.updateUI()
createStandardLabels
public Hashtable createStandardLabels(int increment)
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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.
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See Also:
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setLabelTable(java.util.Dictionary)
createStandardLabels
public Hashtable createStandardLabels(int increment,
int start)
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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.
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Throws:
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IllegalArgumentException
- if slider label start point out of range or if label increment is less than or equal to zero
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See Also:
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setLabelTable(java.util.Dictionary)
getInverted
public boolean getInverted()
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Returns true if the value-range shown for the slider is reversed,
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Returns:
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true if the slider values are reversed from their normal order
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See Also:
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setInverted(boolean)
setInverted
public void setInverted(boolean b)
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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.
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Parameters:
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b - true to reverse the slider values from their normal order
getMajorTickSpacing
public int getMajorTickSpacing()
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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.
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Returns:
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the number of values between major ticks
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See Also:
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setMajorTickSpacing(int)
setMajorTickSpacing
public void setMajorTickSpacing(int n)
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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.
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See Also:
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getMajorTickSpacing()
getMinorTickSpacing
public int getMinorTickSpacing()
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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.
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Returns:
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the number of values between minor ticks
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See Also:
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getMinorTickSpacing()
setMinorTickSpacing
public void setMinorTickSpacing(int n)
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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.
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See Also:
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getMinorTickSpacing()
getSnapToTicks
public boolean getSnapToTicks()
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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.
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Returns:
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true if the value snaps to the nearest tick mark, else false
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See Also:
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setSnapToTicks(boolean)
setSnapToTicks
public void setSnapToTicks(boolean b)
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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.
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Parameters:
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b - true to snap the knob to the nearest tick mark
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See Also:
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getSnapToTicks()
getPaintTicks
public boolean getPaintTicks()
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Tells if tick marks are to be painted.
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Returns:
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true if tick marks are painted, else false
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See Also:
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setPaintTicks(boolean)
setPaintTicks
public void setPaintTicks(boolean b)
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Determines whether tick marks are painted on the slider.
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See Also:
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getPaintTicks()
getPaintTrack
public boolean getPaintTrack()
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Tells if the track (area the slider slides in) is to be painted.
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Returns:
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true if track is painted, else false
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See Also:
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setPaintTrack(boolean)
setPaintTrack
public void setPaintTrack(boolean b)
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Determines whether the track is painted on the slider.
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See Also:
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getPaintTrack()
getPaintLabels
public boolean getPaintLabels()
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Tells if labels are to be painted.
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Returns:
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true if labels are painted, else false
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See Also:
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setPaintLabels(boolean)
setPaintLabels
public void setPaintLabels(boolean b)
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Determines whether labels are painted on the slider.
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See Also:
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getPaintLabels()
paramString
protected String paramString()
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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.
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Overrides:
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paramString
in class
JComponent
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Returns:
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a string representation of this JSlider.
getAccessibleContext
public AccessibleContext getAccessibleContext()
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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.
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Specified by:
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getAccessibleContext
in interface
Accessible
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Overrides:
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getAccessibleContext
in class
JComponent
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Returns:
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an AccessibleJSlider that serves as the AccessibleContext of this JSlider