org.jdesktop.swingx
Class JXDatePicker

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              org.jdesktop.swingx.JXDatePicker

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable

public class JXDatePicker
extends JComponent

A component for entering dates with a user interaction similar to a JComboBox. The dates can be typed into a text field or selected from a JXMonthView which opens in a JXPopupMenu on user's request.

The date selection is controlled by the JXMonthView's DateSelectionModel. This allows the use of all its functionality in the JXDatePicker as well. F.i. restrict the selection to a date in the current or next week:

 Appointment appointment = new Appointment(director,
         "Be sure to have polished shoes!");
 JXDatePicker picker = new JXDatePicker();
 Calendar calendar = picker.getMonthView().getCalendar();
 // starting today if we are in a hurry
 calendar.setTime(new Date());
 picker.getMonthView().setLowerBound(calendar.getTime());
 // end of next week
 CalendarUtils.endOfWeek(calendar);
 calendar.add(Calendar.WEEK_OF_YEAR);
 picker.getMonthView().setUpperBound(calendar.getTime());
 

Similar to a JXMonthView, the JXDatePicker fires an ActionEvent when the user actively commits or cancels a selection. Interested client code can add a ActionListener to be notified by the user action.

 JXDatePicker picker = new JXDatePicker(new Date());
 ActionListener l = new ActionListener() {
     public void actionPerformed(ActionEvent e) {
         if (JXDatePicker.COMMIT_KEY.equals(e.getActionCommand)) {
             saveDate(picker.getDate());
         }
     }
 };
 picker.addActionListener(l);
 

The DateFormats used in the JXDatePicker's are initialized to the default formats of the DatePickerFormatter, as defined by the picker's resourceBundle DatePicker.properties. Application code can overwrite the picker's default

 picker.setDateFormats(myCustomFormat, myAlternativeCustomFormat);
 

PENDING JW: explain what the alternatives are for (after understanding it myself ;-)

The selected Date is a bound property of the JXDatePicker. This allows easy binding to a property of a custom bean when using a binding framework.

Keybindings (as installed by the UI-Delegate)

• ENTER commits the edited or selected value
• ESCAPE reverts the edited or selected value
• alt-DOWN opens the monthView popup
• shift-F5 if monthView is visible, navigates the monthView to today (no effect otherwise)
• F5 commits today

PENDNG JW: support per-OS keybindings to be installed, currently they are hardcoded in our (single) BasicDatePickerUI.

See Also:

JXMonthView, DateSelectionModel, DatePickerFormatter, Serialized Form

Nested Class Summary

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.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

static String	CANCEL_KEY action command used for cancel actionEvent.
static String	COMMIT_KEY action command used for commit actionEvent.
static String	EDITOR
static String	HOME_COMMIT_KEY action key for commit home action
static String	HOME_NAVIGATE_KEY action key for navigate home action
protected boolean	lightWeightPopupEnabled
static String	LINK_PANEL
static String	MONTH_VIEW
static String	uiClassID UI Class ID

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 java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

JXDatePicker()
Intantiates a date picker with no selection and the default DatePickerFormatter.

JXDatePicker(Date selected)
Intantiates a date picker using the specified time as the initial selection and the default DatePickerFormatter.

JXDatePicker(Date selection, Locale locale)
Intantiates a date picker using the specified time as the initial selection and the default DatePickerFormatter.

JXDatePicker(Locale locale)
Intantiates a date picker with no selection and the default DatePickerFormatter.

Method Summary

void	addActionListener(ActionListener l) Adds an ActionListener.
void	cancelEdit() Cancels the editor's changes and notifies ActionListeners.
void	commitEdit() Commits the editor's changes and notifies ActionListeners.
protected void	fireActionPerformed(String actionCommand) Fires an ActionEvent with the given actionCommand to all listeners.
int	getBaseline(int width, int height) Get the baseline for the specified component, or a value less than 0 if the baseline can not be determined.
Date	getDate() Returns the currently selected date.
JFormattedTextField	getEditor() Returns the formatted text field used to edit the date selection.
Font	getFont() Returns the font that is associated with the editor of this date picker.
DateFormat[]	getFormats() Returns an array of the formats used by the installed formatter if it is a subclass of JXDatePickerFormatter.
Date	getLinkDay() Returns the date shown in the LinkPanel.
protected MessageFormat	getLinkFormat()
JPanel	getLinkPanel() Return the panel that is used at the bottom of the popup.
<T extends EventListener> T[]	getListeners(Class<T> listenerType) Returns an array of all the objects currently registered as FooListeners upon this JComponent.
JXMonthView	getMonthView() Return the JXMonthView used in the popup to select dates from.
TimeZone	getTimeZone() Gets the time zone.
DatePickerUI	getUI() Returns the look and feel (L&F) object that renders this component.
String	getUIClassID() Returns the UIDefaults key used to look up the name of the swing.plaf.ComponentUI class that defines the look and feel for this component.
boolean	isEditable() Returns the editable property.
boolean	isEditValid() Returns true if the current value being edited is valid.
boolean	isLightWeightPopupEnabled() Gets the value of the lightWeightPopupEnabled property.
void	removeActionListener(ActionListener l) Removes an ActionListener.
void	setComponentOrientation(ComponentOrientation orientation) Sets the language-sensitive orientation that is to be used to order the elements or text within this component.
void	setDate(Date date) Sets the date property.
void	setEditable(boolean value) Sets the editable property.
void	setEditor(JFormattedTextField editor) Sets the editor.
void	setFont(Font font) Set the font for the editor associated with this date picker.
void	setFormats(DateFormat... formats) Replaces the currently installed formatter and factory used by the editor.
void	setFormats(String... formats) Replaces the currently installed formatter and factory used by the editor.
void	setLightWeightPopupEnabled(boolean aFlag) Sets the lightWeightPopupEnabled property, which provides a hint as to whether or not a lightweight Component should be used to contain the JXDatePicker, versus a heavyweight Component such as a Panel or a Window.
void	setLinkDay(Date linkDay) Sets the date shown in the TodayPanel.
void	setLinkDay(Date linkDay, String linkFormatString) Set the date the link will use and the string defining a MessageFormat to format the link.
protected void	setLinkFormat(MessageFormat _linkFormat)
void	setLinkPanel(JPanel linkPanel) Set the panel that will be used at the bottom of the popup.
void	setMonthView(JXMonthView monthView) Set the component to use the specified JXMonthView.
void	setTimeZone(TimeZone tz) Sets the time zone with the given time zone value.
void	setUI(DatePickerUI ui) Sets the L&F object that renders this component.
protected void	updateTimeZone(TimeZone oldValue, TimeZone newValue) Callback from monthView timezone changes.
void	updateUI() Resets the UI property with the 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, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, 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, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, paramString, 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, 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, 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, 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

uiClassID

public static final String uiClassID

UI Class ID

See Also:

Constant Field Values

EDITOR

public static final String EDITOR

See Also:

Constant Field Values

MONTH_VIEW

public static final String MONTH_VIEW

See Also:

Constant Field Values

LINK_PANEL

public static final String LINK_PANEL

See Also:

Constant Field Values

COMMIT_KEY

public static final String COMMIT_KEY

action command used for commit actionEvent.

See Also:

Constant Field Values

CANCEL_KEY

public static final String CANCEL_KEY

action command used for cancel actionEvent.

See Also:

Constant Field Values

HOME_NAVIGATE_KEY

public static final String HOME_NAVIGATE_KEY

action key for navigate home action

See Also:

Constant Field Values

HOME_COMMIT_KEY

public static final String HOME_COMMIT_KEY

action key for commit home action

See Also:

Constant Field Values

lightWeightPopupEnabled

protected boolean lightWeightPopupEnabled

Constructor Detail

JXDatePicker

public JXDatePicker()

Intantiates a date picker with no selection and the default DatePickerFormatter.

The date picker is configured with the default time zone and locale

See Also:

setTimeZone(java.util.TimeZone), getTimeZone()

JXDatePicker

public JXDatePicker(Date selected)

Intantiates a date picker using the specified time as the initial selection and the default DatePickerFormatter.

The date picker is configured with the default time zone and locale

Parameters:

selected - the initially selected date

See Also:

setTimeZone(java.util.TimeZone), getTimeZone()

JXDatePicker

public JXDatePicker(Locale locale)

Intantiates a date picker with no selection and the default DatePickerFormatter.

The date picker is configured with the default time zone and specified locale

Parameters:

locale - initial Locale

See Also:

setTimeZone(java.util.TimeZone), getTimeZone()

JXDatePicker

public JXDatePicker(Date selection,
                    Locale locale)

Intantiates a date picker using the specified time as the initial selection and the default DatePickerFormatter.

The date picker is configured with the default time zone and specified locale

Parameters:

selection - initially selected Date

locale - initial Locale

See Also:

setTimeZone(java.util.TimeZone), getTimeZone()

Method Detail

setDate

public void setDate(Date date)

Sets the date property.

Does nothing if the ui vetos the new date - as might happen if the code tries to set a date which is unselectable in the monthView's context. The actual value of the new Date is controlled by the JXMonthView's DateSelectionModel. The default implementation normalizes the date to the start of the day in the model's calendar's coordinates, that is all time fields are zeroed. To keep the time fields, configure the monthView with a SingleDaySelectionModel.

At all "stable" (= not editing in date input field nor in the monthView) times the date is the same in the JXMonthView, this JXDatePicker and the editor. If a new Date is set, this invariant is enforced by the DatePickerUI.

This is a bound property.

Parameters:

date - the new date to set.

See Also:

getDate(), DateSelectionModel, SingleDaySelectionModel

getDate

public Date getDate()

Returns the currently selected date.

Returns:

Date

updateTimeZone

protected void updateTimeZone(TimeZone oldValue,
                              TimeZone newValue)

Callback from monthView timezone changes.

NOTE: as timeZone is a bound property of this class we need to guarantee the propertyChangeNotification. As this class doesn't own this property it must listen to the owner (monthView) and re-fire the change.

Parameters:

oldValue - the old timezone.

newValue - the new timezone.

getUI

public DatePickerUI getUI()

Returns the look and feel (L&F) object that renders this component.

Returns:

the DatePickerUI object that renders this component

setUI

public void setUI(DatePickerUI ui)

Sets the L&F object that renders this component.

Parameters:

ui - UI to use for this JXDatePicker

updateUI

public void updateUI()

Resets the UI property with the value from the current look and feel.

Overrides:

updateUI in class JComponent

See Also:

UIManager.getUI(javax.swing.JComponent)

getUIClassID

public String getUIClassID()

Description copied from class: javax.swing.JComponent

Returns the UIDefaults key used to look up the name of the swing.plaf.ComponentUI class that defines the look and feel for this component. Most applications will never need to call this method. Subclasses of JComponent that support pluggable look and feel should override this method to return a UIDefaults key that maps to the ComponentUI subclass that defines their look and feel.

Overrides:

getUIClassID in class JComponent

Returns:

the UIDefaults key for a ComponentUI subclass

See Also:

UIDefaults.getUI(javax.swing.JComponent)

setFormats

public void setFormats(String... formats)

Replaces the currently installed formatter and factory used by the editor. These string formats are defined by the java.text.SimpleDateFormat class.

Note: The given formats are internally synched to the picker's current TimeZone.

Parameters:

formats - zero or more not null string formats to use. Note that a null array is allowed and resets the formatter to use the localized default formats.

Throws:

NullPointerException - any array element is null.

See Also:

SimpleDateFormat

setFormats

public void setFormats(DateFormat... formats)

Replaces the currently installed formatter and factory used by the editor.

Note: The given formats are internally synched to the picker's current TimeZone.

Parameters:

formats - zero or more not null formats to use. Note that a null array is allowed and resets the formatter to use the localized default formats.

Throws:

NullPointerException - any of its elements is null.

getFormats

public DateFormat[] getFormats()

Returns an array of the formats used by the installed formatter if it is a subclass of JXDatePickerFormatter. javax.swing.JFormattedTextField.AbstractFormatter and javax.swing.text.DefaultFormatter do not have support for accessing the formats used.

Returns:

array of formats guaranteed to be not null, but might be empty.

getMonthView

public JXMonthView getMonthView()

Return the JXMonthView used in the popup to select dates from.

Returns:

the month view component

setMonthView

public void setMonthView(JXMonthView monthView)

Set the component to use the specified JXMonthView. If the new JXMonthView is configured to a different time zone it will affect the time zone of this component.

Parameters:

monthView - month view comopnent.

Throws:

NullPointerException - if view component is null

See Also:

setTimeZone(java.util.TimeZone), getTimeZone()

getTimeZone

public TimeZone getTimeZone()

Gets the time zone. This is a convenience method which returns the time zone of the JXMonthView being used.

Returns:

The TimeZone used by the JXMonthView.

setTimeZone

public void setTimeZone(TimeZone tz)

Sets the time zone with the given time zone value. This is a convenience method which returns the time zone of the JXMonthView being used.

PENDING JW: currently this property is the only property of the monthView which is exposed in this api. Not sure why it is here at all. It's asymetric (to the other properties) and as such should be either removed or the others which might be relevant to a datePicker exposed as well (probably hiding the monthView itself as an implementation detail of the ui delegate).

Parameters:

tz - The TimeZone.

getLinkDay

public Date getLinkDay()

Returns the date shown in the LinkPanel.

PENDING JW: the property should be named linkDate - but that's held by the deprecated long returning method. Maybe revisit if we actually remove the other.

Returns:

the date shown in the LinkPanel.

setLinkDay

public void setLinkDay(Date linkDay,
                       String linkFormatString)

Set the date the link will use and the string defining a MessageFormat to format the link. If no valid date is in the editor when the popup is displayed the popup will focus on the month the linkDate is in. Calling this method will replace the currently installed linkPanel and install a new one with the requested date and format.

Parameters:

linkDay - the Date to set on the LinkPanel

linkFormatString - String used to format the link

See Also:

MessageFormat

setLinkDay

public void setLinkDay(Date linkDay)

Sets the date shown in the TodayPanel. PENDING JW ... quick api hack for testing. Don't recreate the panel if it had been used

Parameters:

linkDay - the date used in the TodayPanel

setLinkFormat

protected void setLinkFormat(MessageFormat _linkFormat)

Parameters:

_linkFormat - the _linkFormat to set

getLinkFormat

protected MessageFormat getLinkFormat()

Returns:

the _linkFormat

getLinkPanel

public JPanel getLinkPanel()

Return the panel that is used at the bottom of the popup. The default implementation shows a link that displays the current month.

Returns:

The currently installed link panel

setLinkPanel

public void setLinkPanel(JPanel linkPanel)

Set the panel that will be used at the bottom of the popup. PENDING JW: why insist on JPanel? JComponent would be enough?

Parameters:

linkPanel - The new panel to install in the popup

getEditor

public JFormattedTextField getEditor()

Returns the formatted text field used to edit the date selection.

Clients should NOT use this method. It is provided to temporarily support the PLAF code.

Returns:

the formatted text field

setEditor

public void setEditor(JFormattedTextField editor)

Sets the editor.

The default is created and set by the UI delegate.

Clients should NOT use this method. It is provided to temporarily support the PLAF code.

Parameters:

editor - the formatted input.

Throws:

NullPointerException - if editor is null.

See Also:

getEditor()

setComponentOrientation

public void setComponentOrientation(ComponentOrientation orientation)

Description copied from class: java.awt.Component

Sets the language-sensitive orientation that is to be used to order the elements or text within this component. Language-sensitive LayoutManager and Component subclasses will use this property to determine how to lay out and draw components.

At construction time, a component's orientation is set to ComponentOrientation.UNKNOWN, indicating that it has not been specified explicitly. The UNKNOWN orientation behaves the same as ComponentOrientation.LEFT_TO_RIGHT.

To set the orientation of a single component, use this method. To set the orientation of an entire component hierarchy, use applyComponentOrientation.

Overrides:

setComponentOrientation in class Component

See Also:

ComponentOrientation

isEditValid

public boolean isEditValid()

Returns true if the current value being edited is valid.

Returns:

true if the current value being edited is valid.

commitEdit

public void commitEdit()
                throws ParseException

Commits the editor's changes and notifies ActionListeners. Forces the current value to be taken from the AbstractFormatter and set as the current value. This has no effect if there is no current AbstractFormatter installed.

Throws:

ParseException - Throws parse exception if the date can not be parsed.

cancelEdit

public void cancelEdit()

Cancels the editor's changes and notifies ActionListeners.

setEditable

public void setEditable(boolean value)

Sets the editable property. If false, ...? The default value is true.

Parameters:

value -

See Also:

isEditable()

isEditable

public boolean isEditable()

Returns the editable property.

Returns:

true if the picker is editable; false otherwise

getFont

public Font getFont()

Returns the font that is associated with the editor of this date picker.

Specified by:

getFont in interface MenuContainer

Overrides:

getFont in class Component

Returns:

this component's font; if a font has not been set for this component, the font of its parent is returned

See Also:

Component.setFont(java.awt.Font)

setFont

public void setFont(Font font)

Set the font for the editor associated with this date picker.

Overrides:

setFont in class JComponent

Parameters:

font - the desired Font for this component

See Also:

Component.getFont()

setLightWeightPopupEnabled

public void setLightWeightPopupEnabled(boolean aFlag)

Sets the lightWeightPopupEnabled property, which provides a hint as to whether or not a lightweight Component should be used to contain the JXDatePicker, versus a heavyweight Component such as a Panel or a Window. The decision of lightweight versus heavyweight is ultimately up to the JXDatePicker. Lightweight windows are more efficient than heavyweight windows, but lightweight and heavyweight components do not mix well in a GUI. If your application mixes lightweight and heavyweight components, you should disable lightweight popups. The default value for the lightWeightPopupEnabled property is true, unless otherwise specified by the look and feel. Some look and feels always use heavyweight popups, no matter what the value of this property.

See the article Mixing Heavy and Light Components on The Swing Connection This method fires a property changed event.

Parameters:

aFlag - if true, lightweight popups are desired

This class has associated bean info for instrumenting visual editors named

bound: true expert: true description: Set to false to require heavyweight popups.

isLightWeightPopupEnabled

public boolean isLightWeightPopupEnabled()

Gets the value of the lightWeightPopupEnabled property.

Returns:

the value of the lightWeightPopupEnabled property

See Also:

setLightWeightPopupEnabled(boolean)

getBaseline

public int getBaseline(int width,
                       int height)

Get the baseline for the specified component, or a value less than 0 if the baseline can not be determined. The baseline is measured from the top of the component.

Parameters:

width - Width of the component to determine baseline for.

height - Height of the component to determine baseline for.

Returns:

baseline for the specified component

addActionListener

public void addActionListener(ActionListener l)

Adds an ActionListener.

The ActionListener will receive an ActionEvent when a selection has been made.

Parameters:

l - The ActionListener that is to be notified

removeActionListener

public void removeActionListener(ActionListener l)

Removes an ActionListener.

Parameters:

l - The action listener to remove.

getListeners

public <T extends EventListener> T[] getListeners(Class<T> listenerType)

Description copied from class: javax.swing.JComponent

Returns an array of all the objects currently registered as FooListeners upon this JComponent. FooListeners are registered using the addFooListener method.

You can specify the listenerType argument with a class literal, such as FooListener.class. For example, you can query a JComponent c for its mouse listeners with the following code:

MouseListener[] mls = (MouseListener[])(c.getListeners(MouseListener.class));

If no such listeners exist, this method returns an empty array.

Overrides:

getListeners in class JComponent

Parameters:

listenerType - the type of listeners requested; this parameter should specify an interface that descends from java.util.EventListener

Returns:

an array of all objects registered as FooListeners on this component, or an empty array if no such listeners have been added

See Also:

JComponent.getVetoableChangeListeners(), JComponent.getAncestorListeners()

fireActionPerformed

protected void fireActionPerformed(String actionCommand)

Fires an ActionEvent with the given actionCommand to all listeners.