com.jidesoft.swing
Class TristateCheckBox

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.AbstractButton
                  javax.swing.JToggleButton
                      javax.swing.JCheckBox
                          com.jidesoft.swing.TristateCheckBox

All Implemented Interfaces:

ActionListener, ImageObserver, ItemSelectable, MenuContainer, Serializable, EventListener, Accessible, SwingConstants

Direct Known Subclasses:

NullTristateCheckBox, TristateCheckBoxCellRenderer

public class TristateCheckBox
extends JCheckBox
implements ActionListener

TristateCheckBox is a check box with three states - selected, unselected and mixed (a.k.a partial selected state). Internally it uses a new class called TristateButtonModel to store the 3rd mixed state information.

The mixed state uses a different check icon. Instead of a checked sign in the selected state as in a regular check box, we use a square sign to indicate the mixed state. On different L&Fs, it might look different. TristateCheckBox supports most of the standard L&Fs such as Windows L&F, Metal L&F, Motif L&F, Nimbus L&F, Aqua L&F etc. For most L&Fs, we use a new UIDefault "TristateCheckBox.icon" to paint in three different states. However for Aqua L&F, we actually leveraged a client property provided by Apple to display the icon for the mixed state (refer to Radar #8930094 at http://developer.apple.com/library/mac/#releasenotes/Java/JavaSnowLeopardUpdate4LeopardUpdate9RN/ResolvedIssues/ResolvedIssues.html). To make it extensible for other L&Fs who might provide a built-in mixed state for check box, we support two types of customizations.

 

     
using client property as Aqua. You can define your own client properties and use UIDefaults to tell us how
 to set it. For example: 
 "TristateCheckBox.icon", null,
 "TristateCheckBox.setMixed.clientProperty", new Object[]{"JButton.selectedState", "indeterminate"},
 "TristateCheckBox.clearMixed.clientProperty", new Object[]{"JButton.selectedState", null},
 
using component name. Some Synth-based L&Fs use component name to define style. If so, you can use the
 following two UIDefaults. For example: 
 "TristateCheckBox.setMixed.componentName", "HalfSelected",
 "TristateCheckBox.clearMixed.componentName", "",
 

The correct listener for state change is ActionListener. It will be fired when the state is changed. The ItemListener is only fired when changing from selected state to unselected state or vice versa. Only ActionListener will be fired for all three states.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JCheckBox

JCheckBox.AccessibleJCheckBox

Nested classes/interfaces inherited from class javax.swing.JToggleButton

JToggleButton.AccessibleJToggleButton, JToggleButton.ToggleButtonModel

Nested classes/interfaces inherited from class javax.swing.AbstractButton

AbstractButton.AccessibleAbstractButton, AbstractButton.ButtonChangeListener

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

static int	STATE_MIXED
static int	STATE_SELECTED
static int	STATE_UNSELECTED

Fields inherited from class javax.swing.JCheckBox

BORDER_PAINTED_FLAT_CHANGED_PROPERTY

Fields inherited from class javax.swing.AbstractButton

actionListener, BORDER_PAINTED_CHANGED_PROPERTY, changeEvent, changeListener, CONTENT_AREA_FILLED_CHANGED_PROPERTY, DISABLED_ICON_CHANGED_PROPERTY, DISABLED_SELECTED_ICON_CHANGED_PROPERTY, FOCUS_PAINTED_CHANGED_PROPERTY, HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY, HORIZONTAL_TEXT_POSITION_CHANGED_PROPERTY, ICON_CHANGED_PROPERTY, itemListener, MARGIN_CHANGED_PROPERTY, MNEMONIC_CHANGED_PROPERTY, model, MODEL_CHANGED_PROPERTY, PRESSED_ICON_CHANGED_PROPERTY, ROLLOVER_ENABLED_CHANGED_PROPERTY, ROLLOVER_ICON_CHANGED_PROPERTY, ROLLOVER_SELECTED_ICON_CHANGED_PROPERTY, SELECTED_ICON_CHANGED_PROPERTY, TEXT_CHANGED_PROPERTY, VERTICAL_ALIGNMENT_CHANGED_PROPERTY, VERTICAL_TEXT_POSITION_CHANGED_PROPERTY

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

TristateCheckBox()

TristateCheckBox(String text)

TristateCheckBox(String text, Icon icon)

Method Summary

void	actionPerformed(ActionEvent e)
protected void	adjustMixedIcon()
protected ButtonModel	createButtonModel() Creates the button model.
int	getState() Gets the selection state.
protected void	init(String text, Icon icon)
boolean	isMixed() Checks if the check box is in mixed selection state.
protected void	restoreMixedIcon()
void	setMixed(boolean b) Sets the check box to mixed selection state.
void	setSelected(boolean b)
void	setState(int state) Sets the selection state.
protected void	stateUpdated(int state) This method is called when the selection state changes.
void	updateUI()

Methods inherited from class javax.swing.JCheckBox

getAccessibleContext, getUIClassID, isBorderPaintedFlat, paramString, setBorderPaintedFlat

Methods inherited from class javax.swing.AbstractButton

actionPropertyChanged, addActionListener, addChangeListener, addImpl, addItemListener, checkHorizontalKey, checkVerticalKey, configurePropertiesFromAction, createActionListener, createActionPropertyChangeListener, createChangeListener, createItemListener, doClick, doClick, fireActionPerformed, fireItemStateChanged, fireStateChanged, getAction, getActionCommand, getActionListeners, getChangeListeners, getDisabledIcon, getDisabledSelectedIcon, getDisplayedMnemonicIndex, getHideActionText, getHorizontalAlignment, getHorizontalTextPosition, getIcon, getIconTextGap, getItemListeners, getLabel, getMargin, getMnemonic, getModel, getMultiClickThreshhold, getPressedIcon, getRolloverIcon, getRolloverSelectedIcon, getSelectedIcon, getSelectedObjects, getText, getUI, getVerticalAlignment, getVerticalTextPosition, imageUpdate, isBorderPainted, isContentAreaFilled, isFocusPainted, isRolloverEnabled, isSelected, paintBorder, removeActionListener, removeChangeListener, removeItemListener, removeNotify, setAction, setActionCommand, setBorderPainted, setContentAreaFilled, setDisabledIcon, setDisabledSelectedIcon, setDisplayedMnemonicIndex, setEnabled, setFocusPainted, setHideActionText, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabel, setLayout, setMargin, setMnemonic, setMnemonic, setModel, setMultiClickThreshhold, setPressedIcon, setRolloverEnabled, setRolloverIcon, setRolloverSelectedIcon, setSelectedIcon, setText, setUI, setVerticalAlignment, setVerticalTextPosition

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, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, 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, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, 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, 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

STATE_UNSELECTED

public static final int STATE_UNSELECTED

See Also:

Constant Field Values

STATE_SELECTED

public static final int STATE_SELECTED

See Also:

Constant Field Values

STATE_MIXED

public static final int STATE_MIXED

See Also:

Constant Field Values

Constructor Detail

TristateCheckBox

public TristateCheckBox(String text,
                        Icon icon)

TristateCheckBox

public TristateCheckBox(String text)

TristateCheckBox

public TristateCheckBox()

Method Detail

init

protected void init(String text,
                    Icon icon)

Overrides:

init in class AbstractButton

createButtonModel

protected ButtonModel createButtonModel()

Creates the button model. In this case, it is always a TristateButtonModel.

Returns:

TristateButtonModel

updateUI

public void updateUI()

Overrides:

updateUI in class JCheckBox

adjustMixedIcon

protected void adjustMixedIcon()

restoreMixedIcon

protected void restoreMixedIcon()

isMixed

public boolean isMixed()

Checks if the check box is in mixed selection state.

Returns:

true or false.

setMixed

public void setMixed(boolean b)

Sets the check box to mixed selection state.

Parameters:

b - true or false. True means mixed state. False means unselected state.

getState

public int getState()

Gets the selection state. It could be one of the three states as defined - STATE_SELECTED, STATE_UNSELECTED and STATE_MIXED.

Returns:

one of the three selection states.

setSelected

public void setSelected(boolean b)

Overrides:

setSelected in class AbstractButton

setState

public void setState(int state)

Sets the selection state. It could be one of the three states as defined - STATE_SELECTED, STATE_UNSELECTED and STATE_MIXED.

Parameters:

state - one of the three selection states.

actionPerformed

public void actionPerformed(ActionEvent e)

Specified by:

actionPerformed in interface ActionListener

stateUpdated

protected void stateUpdated(int state)

This method is called when the selection state changes.

Parameters:

state - the new selection state.