net.thevpc.common.swing.button

Class JDropDownButton

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.AbstractButton

javax.swing.JButton

net.thevpc.common.swing.button.JDropDownButton

All Implemented Interfaces:

ImageObserver, ItemSelectable, MenuContainer, Serializable, Accessible, SwingConstants

Direct Known Subclasses:

ColorChooserButton

public class JDropDownButton
extends JButton

Author:

Taha BEN SALAH (taha.bensalah@gmail.com) %creationtime 13 juil. 2006 22:14:21

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	JDropDownButton.WinListener A listener class that watches for a popup window closing.

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

JButton.AccessibleJButton

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

Fields

Modifier and Type	Field and Description
protected JDropDownButton.WinListener	popupListener The window-closing listener for the popup.
protected List<ActionListener>	quickListeners

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

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

accessibleContext, 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

Constructors

Constructor and Description
JDropDownButton()
JDropDownButton(Action a)
JDropDownButton(Icon icon)
JDropDownButton(String text)
JDropDownButton(String text, Icon icon)

Method Summary

Modifier and Type	Method and Description
JMenuItem	add(Action a) Creates a new menu item attached to the specified Action object and appends it to the end of this menu.
Component	add(Component c) Appends a component to the end of this menu.
Component	add(Component c, int index) Adds the specified component to this container at the given position.
JMenuItem	add(JMenuItem menuItem) Appends a menu item to the end of this menu.
JMenuItem	add(String s) Creates a new menu item with the specified text and appends it to the end of this menu.
void	addMenuListener(MenuListener l) Adds a listener for menu events.
void	addQuickActionListener(ActionListener listener)
void	addSeparator() Appends a new separator to the end of the menu.
protected PropertyChangeListener	createActionChangeListener(JMenuItem b) Returns a properly configured PropertyChangeListener which updates the control as changes to the Action occur.
protected JMenuItem	createActionComponent(Action a) Factory method which creates the JMenuItem for Actions added to the JMenu.
protected JDropDownButton.WinListener	createWinListener(JPopupMenu p) Creates a window-closing listener for the popup.
void	doClick(int pressTime) Programmatically performs a "click".
protected void	fireMenuCanceled() Notifies all listeners that have registered interest for notification on this event type.
protected void	fireMenuDeselected() Notifies all listeners that have registered interest for notification on this event type.
protected void	fireMenuSelected() Notifies all listeners that have registered interest for notification on this event type.
protected void	fireQuickActionPerformed(ActionEvent event)
Component	getComponent() Returns the java.awt.Component used to paint this MenuElement.
int	getDelay() Returns the suggested delay, in milliseconds, before submenus are popped up or down.
JMenuItem	getItem(int pos) Returns the JMenuItem at the specified position.
int	getItemCount() Returns the number of items on the menu, including separators.
Component	getMenuComponent(int n) Returns the component at position n.
int	getMenuComponentCount() Returns the number of components on the menu.
Component[]	getMenuComponents() Returns an array of Components of the menu's subcomponents.
MenuListener[]	getMenuListeners() Returns an array of all the MenuListeners added to this JMenu with addMenuListener().
JPopupMenu	getPopupMenu() Returns the popupmenu associated with this menu.
protected Point	getPopupMenuOrigin() Computes the origin for the JMenu's popup menu.
JPopupMenu	getPopupMenuOrNull()
int	getPopupOrientation()
int	getQuickActionDelay()
MenuElement[]	getSubElements() Returns an array of MenuElements containing the submenu for this menu component.
JMenuItem	getTreeMenuItemByActionCommand(String type)
void	hidePopup() Causes the combo box to close its popup window.
JMenuItem	insert(Action a, int pos) Inserts a new menu item attached to the specified Action object at a given position.
JMenuItem	insert(JMenuItem mi, int pos) Inserts the specified JMenuitem at a given position.
void	insert(String s, int pos) Inserts a new menu item with the specified text at a given position.
void	insertSeparator(int index) Inserts a separator at the specified position.
protected void	installAncestorListener()
boolean	isMenuComponent(Component c) Returns true if the specified component exists in the submenu hierarchy.
boolean	isPaintHandle()
boolean	isPopupMenuVisible() Returns true if the menu's popup window is visible.
void	menuSelectionChanged(boolean isIncluded) Messaged when the menubar selection changes to activate or deactivate this menu.
protected void	paintComponent(Graphics g)
void	paintHandle(Graphics g)
void	paintTriangle(Graphics g, int x, int y, int size, int direction, boolean isEnabled)
void	remove(Component c) Removes the component c from this menu.
void	remove(int pos) Removes the menu item at the specified index from this menu.
void	remove(JMenuItem item) Removes the specified menu item from this menu.
void	removeAll() Removes all menu items from this menu.
void	removeMenuListener(MenuListener l) Removes a listener for menu events.
void	removeQuickActionListener(ActionListener listener)
void	setDelay(int d) Sets the suggested delay before the menu's PopupMenu is popped up or down.
void	setMenuLocation(int x, int y) Sets the location of the popup component.
JDropDownButton	setPaintHandle(boolean paintHandle)
void	setPopupMenuVisible(boolean b) Sets the visibility of the menu's popup.
void	setPopupOrientation(int orientation)
void	setQuickActionDelay(int quickActionDelay)
void	updateUI()

Methods inherited from class javax.swing.JButton

getAccessibleContext, getUIClassID, isDefaultButton, isDefaultCapable, paramString, removeNotify, setDefaultCapable

Methods inherited from class javax.swing.AbstractButton

actionPropertyChanged, addActionListener, addChangeListener, addImpl, addItemListener, checkHorizontalKey, checkVerticalKey, configurePropertiesFromAction, createActionListener, createActionPropertyChangeListener, createChangeListener, createItemListener, 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, init, isBorderPainted, isContentAreaFilled, isFocusPainted, isRolloverEnabled, isSelected, paintBorder, removeActionListener, removeChangeListener, removeItemListener, 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, setSelected, 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, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintChildren, 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, 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, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, 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, 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, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

quickListeners

protected List<ActionListener> quickListeners

popupListener

protected JDropDownButton.WinListener popupListener

The window-closing listener for the popup.

See Also:

JDropDownButton.WinListener

Constructor Detail

JDropDownButton

public JDropDownButton()

JDropDownButton

public JDropDownButton(Action a)

JDropDownButton

public JDropDownButton(Icon icon)

JDropDownButton

public JDropDownButton(String text)

JDropDownButton

public JDropDownButton(String text,
                       Icon icon)

Method Detail

getQuickActionDelay

public int getQuickActionDelay()

setQuickActionDelay

public void setQuickActionDelay(int quickActionDelay)

isPaintHandle

public boolean isPaintHandle()

setPaintHandle

public JDropDownButton setPaintHandle(boolean paintHandle)

installAncestorListener

protected void installAncestorListener()

hidePopup

public void hidePopup()

Causes the combo box to close its popup window.

getTreeMenuItemByActionCommand

public JMenuItem getTreeMenuItemByActionCommand(String type)

addQuickActionListener

public void addQuickActionListener(ActionListener listener)

removeQuickActionListener

public void removeQuickActionListener(ActionListener listener)

fireQuickActionPerformed

protected void fireQuickActionPerformed(ActionEvent event)

getPopupOrientation

public int getPopupOrientation()

setPopupOrientation

public void setPopupOrientation(int orientation)

Parameters:

orientation - : SwingConstants.LEFT or SwingConstants.RIGHT

paintHandle

public void paintHandle(Graphics g)

paintComponent

protected void paintComponent(Graphics g)

Overrides:

paintComponent in class JComponent

paintTriangle

public void paintTriangle(Graphics g,
                          int x,
                          int y,
                          int size,
                          int direction,
                          boolean isEnabled)

updateUI

public void updateUI()

Overrides:

updateUI in class JButton

isPopupMenuVisible

public boolean isPopupMenuVisible()

Returns true if the menu's popup window is visible.

Returns:

true if the menu is visible, else false

setPopupMenuVisible

public void setPopupMenuVisible(boolean b)

Sets the visibility of the menu's popup. If the menu is not enabled, this method will have no effect.

Parameters:

b - a boolean value -- true to make the menu visible, false to hide it @@beaninfo description: The popup menu's visibility expert: true hidden: true

getPopupMenuOrigin

protected Point getPopupMenuOrigin()

Computes the origin for the JMenu's popup menu. This method uses Look and Feel properties named Menu.menuPopupOffsetX, Menu.menuPopupOffsetY, Menu.submenuPopupOffsetX, and Menu.submenuPopupOffsetY to adjust the exact location of popup.

Returns:

a Point in the coordinate space of the menu which should be used as the origin of the JMenu's popup menu

Since:

1.3

getDelay

public int getDelay()

Returns the suggested delay, in milliseconds, before submenus are popped up or down. Each look and feel (L&F) may determine its own policy for observing the delay property. In most cases, the delay is not observed for top level menus or while dragging. The default for delay is 0. This method is a property of the look and feel code and is used to manage the idiosyncracies of the various UI implementations.

Returns:

the delay property

setDelay

public void setDelay(int d)

Sets the suggested delay before the menu's PopupMenu is popped up or down. Each look and feel (L#F) may determine it's own policy for observing the delay property. In most cases, the delay is not observed for top level menus or while dragging. This method is a property of the look and feel code and is used to manage the idiosyncracies of the various UI implementations.

Parameters:

d - the number of milliseconds to delay

Throws:

IllegalArgumentException - if d is less than 0 popup menu visible expert: true

setMenuLocation

public void setMenuLocation(int x,
                            int y)

Sets the location of the popup component.

Parameters:

x - the x coordinate of the popup's new position

y - the y coordinate of the popup's new position

add

public JMenuItem add(JMenuItem menuItem)

Appends a menu item to the end of this menu. Returns the menu item added.

Parameters:

menuItem - the JMenuitem to be added

Returns:

the JMenuItem added

add

public Component add(Component c)

Appends a component to the end of this menu. Returns the component added.

Overrides:

add in class Container

Parameters:

c - the Component to add

Returns:

the Component added

add

public Component add(Component c,
                     int index)

Adds the specified component to this container at the given position. If index equals -1, the component will be appended to the end.

Overrides:

add in class Container

Parameters:

c - the Component to add

index - the position at which to insert the component

Returns:

the Component added

See Also:

remove(int), Container.add(Component, int)

remove

public void remove(int pos)

Removes the menu item at the specified index from this menu.

Overrides:

remove in class Container

Parameters:

pos - the position of the item to be removed

Throws:

IllegalArgumentException - if the value of pos < 0, or if pos is greater than the number of menu items

remove

public void remove(Component c)

Removes the component c from this menu.

Overrides:

remove in class Container

Parameters:

c - the component to be removed

removeAll

public void removeAll()

Removes all menu items from this menu.

Overrides:

removeAll in class Container

add

public JMenuItem add(String s)

Creates a new menu item with the specified text and appends it to the end of this menu.

Parameters:

s - the string for the menu item to be added

add

public JMenuItem add(Action a)

Creates a new menu item attached to the specified Action object and appends it to the end of this menu. As of 1.3, this is no longer the preferred method for adding Actions to a container. Instead it is recommended to configure a control with an action using setAction, and then add that control directly to the Container.

Parameters:

a - the Action for the menu item to be added

See Also:

Action

addSeparator

public void addSeparator()

Appends a new separator to the end of the menu.

insert

public void insert(String s,
                   int pos)

Inserts a new menu item with the specified text at a given position.

Parameters:

s - the text for the menu item to add

pos - an integer specifying the position at which to add the new menu item

Throws:

IllegalArgumentException - when the value of pos < 0

insert

public JMenuItem insert(JMenuItem mi,
                        int pos)

Inserts the specified JMenuitem at a given position.

Parameters:

mi - the JMenuitem to add

pos - an integer specifying the position at which to add the new JMenuitem

Returns:

the new menu item

Throws:

IllegalArgumentException - if the value of pos < 0

insert

public JMenuItem insert(Action a,
                        int pos)

Inserts a new menu item attached to the specified Action object at a given position.

Parameters:

a - the Action object for the menu item to add

pos - an integer specifying the position at which to add the new menu item

Throws:

IllegalArgumentException - if the value of pos < 0

insertSeparator

public void insertSeparator(int index)

Inserts a separator at the specified position.

Parameters:

index - an integer specifying the position at which to insert the menu separator

Throws:

IllegalArgumentException - if the value of index < 0

getItem

public JMenuItem getItem(int pos)

Returns the JMenuItem at the specified position. If the component at pos is not a menu item, null is returned. This method is included for AWT compatibility.

Parameters:

pos - an integer specifying the position

Returns:

the menu item at the specified position; or null if the item as the specified position is not a menu item

Throws:

IllegalArgumentException - if the value of pos < 0

getItemCount

public int getItemCount()

Returns the number of items on the menu, including separators. This method is included for AWT compatibility.

Returns:

an integer equal to the number of items on the menu

See Also:

getMenuComponentCount()

remove

public void remove(JMenuItem item)

Removes the specified menu item from this menu. If there is no popup menu, this method will have no effect.

Parameters:

item - the JMenuItem to be removed from the menu

getMenuComponentCount

public int getMenuComponentCount()

Returns the number of components on the menu.

Returns:

an integer containing the number of components on the menu

getMenuComponent

public Component getMenuComponent(int n)

Returns the component at position n.

Parameters:

n - the position of the component to be returned

Returns:

the component requested, or null if there is no popup menu

getMenuComponents

public Component[] getMenuComponents()

Returns an array of Components of the menu's subcomponents. Note that this returns all Components in the popup menu, including separators.

Returns:

an array of Components or an empty array if there is no popup menu

isMenuComponent

public boolean isMenuComponent(Component c)

Returns true if the specified component exists in the submenu hierarchy.

Parameters:

c - the Component to be tested

Returns:

true if the Component exists, false otherwise

getPopupMenu

public JPopupMenu getPopupMenu()

Returns the popupmenu associated with this menu. If there is no popupmenu, it will create one.

getPopupMenuOrNull

public JPopupMenu getPopupMenuOrNull()

addMenuListener

public void addMenuListener(MenuListener l)

Adds a listener for menu events.

Parameters:

l - the listener to be added

removeMenuListener

public void removeMenuListener(MenuListener l)

Removes a listener for menu events.

Parameters:

l - the listener to be removed

getMenuListeners

public MenuListener[] getMenuListeners()

Returns an array of all the MenuListeners added to this JMenu with addMenuListener().

Returns:

all of the MenuListeners added or an empty array if no listeners have been added

Since:

1.4

fireMenuSelected

protected void fireMenuSelected()

Notifies all listeners that have registered interest for notification on this event type. The event instance is created lazily.

Throws:

Error - if there is a null listener

See Also:

EventListenerList

fireMenuDeselected

protected void fireMenuDeselected()

Notifies all listeners that have registered interest for notification on this event type. The event instance is created lazily.

Throws:

Error - if there is a null listener

See Also:

EventListenerList

fireMenuCanceled

protected void fireMenuCanceled()

Notifies all listeners that have registered interest for notification on this event type. The event instance is created lazily.

Throws:

Error - if there is a null listener

See Also:

EventListenerList

createWinListener

protected JDropDownButton.WinListener createWinListener(JPopupMenu p)

Creates a window-closing listener for the popup.

Parameters:

p - the JPopupMenu

Returns:

the new window-closing listener

See Also:

JDropDownButton.WinListener

menuSelectionChanged

public void menuSelectionChanged(boolean isIncluded)

Messaged when the menubar selection changes to activate or deactivate this menu. Overrides JMenuItem.menuSelectionChanged.

Parameters:

isIncluded - true if this menu is active, false if it is not

getSubElements

public MenuElement[] getSubElements()

Returns an array of MenuElements containing the submenu for this menu component. If popup menu is null returns an empty array. This method is required to conform to the MenuElement interface. Note that since JSeparators do not conform to the MenuElement interface, this array will only contain JMenuItems.

Returns:

an array of MenuElement objects

getComponent

public Component getComponent()

Returns the java.awt.Component used to paint this MenuElement. The returned component is used to convert events and detect if an event is inside a menu component.

doClick

public void doClick(int pressTime)

Programmatically performs a "click". This overrides the method AbstractButton.doClick in order to make the menu pop up.

Overrides:

doClick in class AbstractButton

Parameters:

pressTime - indicates the number of milliseconds the button was pressed for

createActionComponent

protected JMenuItem createActionComponent(Action a)

Factory method which creates the JMenuItem for Actions added to the JMenu. As of 1.3, this is no longer the preferred method. Instead it is recommended to configure a control with an action using setAction, and then adding that control directly to the Container.

Parameters:

a - the Action for the menu item to be added

Returns:

the new menu item

Since:

1.3

See Also:

Action

createActionChangeListener

protected PropertyChangeListener createActionChangeListener(JMenuItem b)

Returns a properly configured PropertyChangeListener which updates the control as changes to the Action occur. As of 1.3, this is no longer the preferred method for adding Actions to a Container. Instead it is recommended to configure a control with an action using setAction, and then add that control directly to the Container.