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javax.swing
Class JSplitPane
java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.JSplitPane
-
All Implemented Interfaces:
-
Accessible
,
ImageObserver
,
MenuContainer
,
Serializable
-
public class
JSplitPane
-
extends
JComponent
-
implements
Accessible
JSplitPane is used to divide two (and only two) Components. The two Components are graphically divided based on the look and feel implementation, and the two Components can then be interactively resized by the user. Information on using JSplitPane is in
How to Use Split Panes
in The Java Tutorial.
The two Components in a split pane can be aligned left to right using JSplitPane.HORIZONTAL_SPLIT, or top to bottom using JSplitPane.VERTICAL_SPLIT. The preferred way to change the size of the Components is to invoke setDividerLocation where location is either the new x or y position, depending on the orientation of the JSplitPane.
To resize the Components to their preferred sizes invoke resetToPreferredSizes.
When the user is resizing the Components the minimum size of the Components is used to determine the maximum/minimum position the Components can be set to. If the minimum size of the two components is greater than the size of the split pane the divider will not allow you to resize it. To alter the minimum size of a JComponent, see
JComponent.setMinimumSize(java.awt.Dimension)
.
When the user resizes the split pane the new space is distributed between the two components based on the resizeWeight property. A value of 0, the default, indicates the right/bottom component gets all the space, where as a value of 1 indicates the left/top component gets all the space.
For the keyboard keys used by this component in the standard Look and Feel (L&F) renditions, see the
JSplitPane 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
.
-
See Also:
-
setDividerLocation(double)
,
resetToPreferredSizes()
Nested Class Summary
|
protected class |
JSplitPane.AccessibleJSplitPane
This class implements accessibility support for the JSplitPane class. |
Nested classes inherited from class java.awt.
Component
|
Component.AccessibleAWTComponent
,
Component.BltBufferStrategy
,
Component.FlipBufferStrategy
|
Fields inherited from interface java.awt.image.
ImageObserver
|
ABORT
,
ALLBITS
,
ERROR
,
FRAMEBITS
,
HEIGHT
,
PROPERTIES
,
SOMEBITS
,
WIDTH
|
Constructor Summary
|
JSplitPane
()
Creates a new JSplitPane configured to arrange the child components side-by-side horizontally with no continuous layout, using two buttons for the components. |
JSplitPane
(int newOrientation)
Creates a new JSplitPane configured with the specified orientation and no continuous layout. |
JSplitPane
(int newOrientation, boolean newContinuousLayout)
Creates a new JSplitPane with the specified orientation and redrawing style. |
JSplitPane
(int newOrientation, boolean newContinuousLayout,
Component
newLeftComponent,
Component
newRightComponent)
Creates a new JSplitPane with the specified orientation and redrawing style, and with the specified components. |
JSplitPane
(int newOrientation,
Component
newLeftComponent,
Component
newRightComponent)
Creates a new JSplitPane with the specified orientation and with the specified components that do not do continuous redrawing. |
Method Summary
|
protected void |
addImpl
(
Component
comp,
Object
constraints, int index)
Adds the specified component to this split pane. |
AccessibleContext
|
getAccessibleContext
()
Gets the AccessibleContext associated with this JSplitPane. |
Component
|
getBottomComponent
()
Returns the component below, or to the right of the divider. |
int |
getDividerLocation
()
Returns the last value passed to setDividerLocation. |
int |
getDividerSize
()
Returns the size of the divider. |
int |
getLastDividerLocation
()
Returns the last location the divider was at. |
Component
|
getLeftComponent
()
Returns the component to the left (or above) the divider. |
int |
getMaximumDividerLocation
()
Returns the maximum location of the divider from the look and feel implementation. |
int |
getMinimumDividerLocation
()
Returns the minimum location of the divider from the look and feel implementation. |
int |
getOrientation
()
Returns the orientation. |
double |
getResizeWeight
()
Returns the number that determines how extra space is distributed. |
Component
|
getRightComponent
()
Returns the component to the right (or below) the divider. |
Component
|
getTopComponent
()
Returns the component above, or to the left of the divider. |
SplitPaneUI
|
getUI
()
Returns the SplitPaneUI that is providing the current look and feel. |
String
|
getUIClassID
()
Returns the name of the L&F class that renders this component. |
boolean |
isContinuousLayout
()
Gets the continuousLayout property. |
boolean |
isOneTouchExpandable
()
Gets the oneTouchExpandable property. |
boolean |
isValidateRoot
()
Returns true, so that calls to revalidate on any descendant of this JSplitPane will cause a request to be queued that will validate the JSplitPane and all its descendants. |
protected void |
paintChildren
(
Graphics
g)
Subclassed to message the UI with finishedPaintingChildren after super has been messaged, as well as painting the border. |
protected
String
|
paramString
()
Returns a string representation of this JSplitPane. |
void |
remove
(
Component
component)
Removes the child component, component from the pane. |
void |
remove
(int index)
Removes the Component at the specified index. |
void |
removeAll
()
Removes all the child components from the split pane. |
void |
resetToPreferredSizes
()
Lays out the JSplitPane layout based on the preferred size of the children components. |
void |
setBottomComponent
(
Component
comp)
Sets the component below, or to the right of the divider. |
void |
setContinuousLayout
(boolean newContinuousLayout)
Sets the value of the continuousLayout property, which must be true for the child components to be continuously redisplayed and laid out during user intervention. |
void |
setDividerLocation
(double proportionalLocation)
Sets the divider location as a percentage of the JSplitPane's size. |
void |
setDividerLocation
(int location)
Sets the location of the divider. |
void |
setDividerSize
(int newSize)
Sets the size of the divider. |
void |
setLastDividerLocation
(int newLastLocation)
Sets the last location the divider was at to newLastLocation. |
void |
setLeftComponent
(
Component
comp)
Sets the component to the left (or above) the divider. |
void |
setOneTouchExpandable
(boolean newValue)
Sets the value of the oneTouchExpandable property, which must be true for the JSplitPane to provide a UI widget on the divider to quickly expand/collapse the divider. |
void |
setOrientation
(int orientation)
Sets the orientation, or how the splitter is divided. |
void |
setResizeWeight
(double value)
Specifies how to distribute extra space when the size of the split pane changes. |
void |
setRightComponent
(
Component
comp)
Sets the component to the right (or below) the divider. |
void |
setTopComponent
(
Component
comp)
Sets the component above, or to the left of the divider. |
void |
setUI
(
SplitPaneUI
ui)
Sets the L&F object that renders this component. |
void |
updateUI
()
Notification from the UIManager that the L&F has changed. |
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
,
paint
,
paintBorder
,
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
,
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
,
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
|
VERTICAL_SPLIT
public static final int VERTICAL_SPLIT
-
Vertical split indicates the Components are split along the y axis. For example the two Components will be split one on top of the other.
-
See Also:
-
Constant Field Values
HORIZONTAL_SPLIT
public static final int HORIZONTAL_SPLIT
-
Horizontal split indicates the Components are split along the x axis. For example the two Components will be split one to the left of the other.
-
See Also:
-
Constant Field Values
LEFT
public static final String LEFT
-
Used to add a Component to the left of the other Component.
-
See Also:
-
Constant Field Values
RIGHT
public static final String RIGHT
-
Used to add a Component to the right of the other Component.
-
See Also:
-
Constant Field Values
TOP
public static final String TOP
-
Used to add a Component above the other Component.
-
See Also:
-
Constant Field Values
BOTTOM
public static final String BOTTOM
-
Used to add a Component below the other Component.
-
See Also:
-
Constant Field Values
DIVIDER
public static final String DIVIDER
-
Used to add a Component that will represent the divider.
-
See Also:
-
Constant Field Values
ORIENTATION_PROPERTY
public static final String ORIENTATION_PROPERTY
-
Bound property name for orientation (horizontal or vertical).
-
See Also:
-
Constant Field Values
CONTINUOUS_LAYOUT_PROPERTY
public static final String CONTINUOUS_LAYOUT_PROPERTY
-
Bound property name for continuousLayout.
-
See Also:
-
Constant Field Values
DIVIDER_SIZE_PROPERTY
public static final String DIVIDER_SIZE_PROPERTY
-
Bound property name for border.
-
See Also:
-
Constant Field Values
ONE_TOUCH_EXPANDABLE_PROPERTY
public static final String ONE_TOUCH_EXPANDABLE_PROPERTY
-
Bound property for oneTouchExpandable.
-
See Also:
-
Constant Field Values
LAST_DIVIDER_LOCATION_PROPERTY
public static final String LAST_DIVIDER_LOCATION_PROPERTY
-
Bound property for lastLocation.
-
See Also:
-
Constant Field Values
DIVIDER_LOCATION_PROPERTY
public static final String DIVIDER_LOCATION_PROPERTY
-
Bound property for the dividerLocation.
-
Since:
-
1.3
-
See Also:
-
Constant Field Values
RESIZE_WEIGHT_PROPERTY
public static final String RESIZE_WEIGHT_PROPERTY
-
Bound property for weight.
-
Since:
-
1.3.
-
See Also:
-
Constant Field Values
orientation
protected int orientation
-
How the views are split.
continuousLayout
protected boolean continuousLayout
-
Whether or not the views are continuously redisplayed while resizing.
leftComponent
protected Component leftComponent
-
The left or top component.
rightComponent
protected Component rightComponent
-
The right or bottom component.
dividerSize
protected int dividerSize
-
Size of the divider.
oneTouchExpandable
protected boolean oneTouchExpandable
-
Is a little widget provided to quickly expand/collapse the split pane?
lastDividerLocation
protected int lastDividerLocation
-
Previous location of the split pane.
JSplitPane
public JSplitPane()
-
Creates a new JSplitPane configured to arrange the child components side-by-side horizontally with no continuous layout, using two buttons for the components.
JSplitPane
public JSplitPane(int newOrientation)
-
Creates a new JSplitPane configured with the specified orientation and no continuous layout.
-
Parameters:
-
newOrientation - JSplitPane.HORIZONTAL_SPLIT or JSplitPane.VERTICAL_SPLIT
-
Throws:
-
IllegalArgumentException
- if orientation is not one of HORIZONTAL_SPLIT or VERTICAL_SPLIT.
JSplitPane
public JSplitPane(int newOrientation,
boolean newContinuousLayout)
-
Creates a new JSplitPane with the specified orientation and redrawing style.
-
Parameters:
-
newOrientation - JSplitPane.HORIZONTAL_SPLIT or JSplitPane.VERTICAL_SPLIT
-
newContinuousLayout - a boolean, true for the components to redraw continuously as the divider changes position, false to wait until the divider position stops changing to redraw
-
Throws:
-
IllegalArgumentException
- if orientation is not one of HORIZONTAL_SPLIT or VERTICAL_SPLIT
JSplitPane
public JSplitPane(int newOrientation,
Component newLeftComponent,
Component newRightComponent)
-
Creates a new JSplitPane with the specified orientation and with the specified components that do not do continuous redrawing.
-
Parameters:
-
newOrientation - JSplitPane.HORIZONTAL_SPLIT or JSplitPane.VERTICAL_SPLIT
-
newLeftComponent - the Component that will appear on the left of a horizontally-split pane, or at the top of a vertically-split pane
-
newRightComponent - the Component that will appear on the right of a horizontally-split pane, or at the bottom of a vertically-split pane
-
Throws:
-
IllegalArgumentException
- if orientation is not one of: HORIZONTAL_SPLIT or VERTICAL_SPLIT
JSplitPane
public JSplitPane(int newOrientation,
boolean newContinuousLayout,
Component newLeftComponent,
Component newRightComponent)
-
Creates a new JSplitPane with the specified orientation and redrawing style, and with the specified components.
-
Parameters:
-
newOrientation - JSplitPane.HORIZONTAL_SPLIT or JSplitPane.VERTICAL_SPLIT
-
newContinuousLayout - a boolean, true for the components to redraw continuously as the divider changes position, false to wait until the divider position stops changing to redraw
-
newLeftComponent - the Component that will appear on the left of a horizontally-split pane, or at the top of a vertically-split pane
-
newRightComponent - the Component that will appear on the right of a horizontally-split pane, or at the bottom of a vertically-split pane
-
Throws:
-
IllegalArgumentException
- if orientation is not one of HORIZONTAL_SPLIT or VERTICAL_SPLIT
setUI
public void setUI(SplitPaneUI ui)
-
Sets the L&F object that renders this component.
-
-
-
Parameters:
-
ui - the SplitPaneUI L&F object
-
See Also:
-
UIDefaults.getUI(javax.swing.JComponent)
getUI
public SplitPaneUI getUI()
-
Returns the SplitPaneUI that is providing the current look and feel.
-
-
-
Returns:
-
the SplitPaneUI object that renders this component
updateUI
public void updateUI()
-
Notification from the UIManager that the L&F has changed. Replaces the current UI object with the latest version from the UIManager.
-
-
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:
-
the string "SplitPaneUI"
-
See Also:
-
JComponent.getUIClassID()
,
UIDefaults.getUI(javax.swing.JComponent)
setDividerSize
public void setDividerSize(int newSize)
-
Sets the size of the divider.
-
-
-
Parameters:
-
newSize - an integer giving the size of the divider in pixels
getDividerSize
public int getDividerSize()
-
Returns the size of the divider.
-
-
-
Returns:
-
an integer giving the size of the divider in pixels
setLeftComponent
public void setLeftComponent(Component comp)
-
Sets the component to the left (or above) the divider.
-
-
-
Parameters:
-
comp - the Component to display in that position
getLeftComponent
public Component getLeftComponent()
-
Returns the component to the left (or above) the divider.
-
-
-
Returns:
-
the Component displayed in that position
setTopComponent
public void setTopComponent(Component comp)
-
Sets the component above, or to the left of the divider.
-
-
-
Parameters:
-
comp - the Component to display in that position
getTopComponent
public Component getTopComponent()
-
Returns the component above, or to the left of the divider.
-
-
-
Returns:
-
the Component displayed in that position
setRightComponent
public void setRightComponent(Component comp)
-
Sets the component to the right (or below) the divider.
-
-
-
Parameters:
-
comp - the Component to display in that position
getRightComponent
public Component getRightComponent()
-
Returns the component to the right (or below) the divider.
-
-
-
Returns:
-
the Component displayed in that position
setBottomComponent
public void setBottomComponent(Component comp)
-
Sets the component below, or to the right of the divider.
-
-
-
Parameters:
-
comp - the Component to display in that position
getBottomComponent
public Component getBottomComponent()
-
Returns the component below, or to the right of the divider.
-
-
-
Returns:
-
the Component displayed in that position
setOneTouchExpandable
public void setOneTouchExpandable(boolean newValue)
-
Sets the value of the oneTouchExpandable property, which must be true for the JSplitPane to provide a UI widget on the divider to quickly expand/collapse the divider. The default value of this property is false. Some look and feels might not support one-touch expanding; they will ignore this property.
-
-
-
Parameters:
-
newValue - true to specify that the split pane should provide a collapse/expand widget
-
See Also:
-
isOneTouchExpandable()
isOneTouchExpandable
public boolean isOneTouchExpandable()
-
Gets the oneTouchExpandable property.
-
-
-
Returns:
-
the value of the oneTouchExpandable property
-
See Also:
-
setOneTouchExpandable(boolean)
setLastDividerLocation
public void setLastDividerLocation(int newLastLocation)
-
Sets the last location the divider was at to newLastLocation.
-
-
-
Parameters:
-
newLastLocation - an integer specifying the last divider location in pixels, from the left (or upper) edge of the pane to the left (or upper) edge of the divider
getLastDividerLocation
public int getLastDividerLocation()
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Returns the last location the divider was at.
-
-
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Returns:
-
an integer specifying the last divider location as a count of pixels from the left (or upper) edge of the pane to the left (or upper) edge of the divider
setOrientation
public void setOrientation(int orientation)
-
Sets the orientation, or how the splitter is divided. The options are:
-
JSplitPane.VERTICAL_SPLIT (above/below orientation of components)
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JSplitPane.HORIZONTAL_SPLIT (left/right orientation of components)
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-
-
Parameters:
-
orientation - an integer specifying the orientation
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Throws:
-
IllegalArgumentException
- if orientation is not one of: HORIZONTAL_SPLIT or VERTICAL_SPLIT.
getOrientation
public int getOrientation()
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Returns the orientation.
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-
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Returns:
-
an integer giving the orientation
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See Also:
-
setOrientation(int)
setContinuousLayout
public void setContinuousLayout(boolean newContinuousLayout)
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Sets the value of the continuousLayout property, which must be true for the child components to be continuously redisplayed and laid out during user intervention. The default value of this property is false. Some look and feels might not support continuous layout; they will ignore this property.
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-
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Parameters:
-
newContinuousLayout - true if the components should continuously be redrawn as the divider changes position
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See Also:
-
isContinuousLayout()
isContinuousLayout
public boolean isContinuousLayout()
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Gets the continuousLayout property.
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-
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Returns:
-
the value of the continuousLayout property
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See Also:
-
setContinuousLayout(boolean)
setResizeWeight
public void setResizeWeight(double value)
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Specifies how to distribute extra space when the size of the split pane changes. A value of 0, the default, indicates the right/bottom component gets all the extra space (the left/top component acts fixed), where as a value of 1 specifies the left/top component gets all the extra space (the right/bottom component acts fixed). Specifically, the left/top component gets (weight * diff) extra space and the right/bottom component gets (1 - weight) * diff extra space.
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-
-
Parameters:
-
value - as described above
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Throws:
-
IllegalArgumentException
- if value is < 0 or >
1
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Since:
-
1.3
getResizeWeight
public double getResizeWeight()
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Returns the number that determines how extra space is distributed.
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-
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Returns:
-
how extra space is to be distributed on a resize of the split pane
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Since:
-
1.3
resetToPreferredSizes
public void resetToPreferredSizes()
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Lays out the JSplitPane layout based on the preferred size of the children components. This will likely result in changing the divider location.
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setDividerLocation
public void setDividerLocation(double proportionalLocation)
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Sets the divider location as a percentage of the JSplitPane's size.
This method is implemented in terms of setDividerLocation(int). This method immediately changes the size of the split pane based on its current size. If the split pane is not correctly realized and on screen, this method will have no effect (new divider location will become (current size * proportionalLocation) which is 0).
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Parameters:
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proportionalLocation - a double-precision floating point value that specifies a percentage, from zero (top/left) to 1.0 (bottom/right)
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Throws:
-
IllegalArgumentException
- if the specified location is < 0 or >
1.0
setDividerLocation
public void setDividerLocation(int location)
-
Sets the location of the divider. This is passed off to the look and feel implementation, and then listeners are notified. A value less than 0 implies the divider should be reset to a value that attempts to honor the preferred size of the left/top component. After notifying the listeners, the last divider location is updated, via setLastDividerLocation.
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Parameters:
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location - an int specifying a UI-specific value (typically a pixel count)
getDividerLocation
public int getDividerLocation()
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Returns the last value passed to setDividerLocation. The value returned from this method may differ from the actual divider location (if setDividerLocation was passed a value bigger than the curent size).
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Returns:
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an integer specifying the location of the divider
getMinimumDividerLocation
public int getMinimumDividerLocation()
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Returns the minimum location of the divider from the look and feel implementation.
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Returns:
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an integer specifying a UI-specific value for the minimum location (typically a pixel count); or -1 if the UI is null
getMaximumDividerLocation
public int getMaximumDividerLocation()
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Returns the maximum location of the divider from the look and feel implementation.
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Returns:
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an integer specifying a UI-specific value for the maximum location (typically a pixel count); or -1 if the UI is null
remove
public void remove(Component component)
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Removes the child component, component from the pane. Resets the leftComponent or rightComponent instance variable, as necessary.
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Overrides:
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remove
in class
Container
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Parameters:
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component - the Component to remove
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See Also:
-
Container.add(java.awt.Component)
,
Container.remove(int)
remove
public void remove(int index)
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Removes the Component at the specified index. Updates the leftComponent and rightComponent instance variables as necessary, and then messages super.
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Overrides:
-
remove
in class
Container
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Parameters:
-
index - an integer specifying the component to remove, where 1 specifies the left/top component and 2 specifies the bottom/right component
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See Also:
-
Container.add(java.awt.Component)
removeAll
public void removeAll()
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Removes all the child components from the split pane. Resets the leftComonent and rightComponent instance variables.
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Overrides:
-
removeAll
in class
Container
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See Also:
-
Container.add(java.awt.Component)
,
Container.remove(int)
isValidateRoot
public boolean isValidateRoot()
-
Returns true, so that calls to revalidate on any descendant of this JSplitPane will cause a request to be queued that will validate the JSplitPane and all its descendants.
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-
Overrides:
-
isValidateRoot
in class
JComponent
-
-
Returns:
-
true
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See Also:
-
JComponent.revalidate()
addImpl
protected void addImpl(Component comp,
Object constraints,
int index)
-
Adds the specified component to this split pane. If constraints identifies the left/top or right/bottom child component, and a component with that identifier was previously added, it will be removed and then comp will be added in its place. If constraints is not one of the known identifiers the layout manager may throw an IllegalArgumentException.
The possible constraints objects (Strings) are:
-
JSplitPane.TOP
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JSplitPane.LEFT
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JSplitPane.BOTTOM
-
JSplitPane.RIGHT
If the constraints object is null, the component is added in the first available position (left/top if open, else right/bottom).
-
-
Overrides:
-
addImpl
in class
Container
-
-
Parameters:
-
comp - the component to add
-
constraints - an Object specifying the layout constraints (position) for this component
-
index - an integer specifying the index in the container's list.
-
Throws:
-
IllegalArgumentException
- if the constraints object does not match an existing component
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See Also:
-
Container.addImpl(Component, Object, int)
paintChildren
protected void paintChildren(Graphics g)
-
Subclassed to message the UI with finishedPaintingChildren after super has been messaged, as well as painting the border.
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Overrides:
-
paintChildren
in class
JComponent
-
-
Parameters:
-
g - the Graphics context within which to paint
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See Also:
-
JComponent.paint(java.awt.Graphics)
,
Container.paint(java.awt.Graphics)
paramString
protected String paramString()
-
Returns a string representation of this JSplitPane. 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 JSplitPane.
getAccessibleContext
public AccessibleContext getAccessibleContext()
-
Gets the AccessibleContext associated with this JSplitPane. For split panes, the AccessibleContext takes the form of an AccessibleJSplitPane. A new AccessibleJSplitPane instance is created if necessary.
-
-
Specified by:
-
getAccessibleContext
in interface
Accessible
-
Overrides:
-
getAccessibleContext
in class
JComponent
-
-
Returns:
-
an AccessibleJSplitPane that serves as the AccessibleContext of this JSplitPane