java.lang.Object
- javax.swing.plaf.ComponentUI
- - javax.swing.plaf.ButtonUI
  - - javax.swing.plaf.MenuItemUI
    - - javax.swing.plaf.basic.BasicMenuItemUI

Direct Known Subclasses:

BasicCheckBoxMenuItemUI, BasicMenuUI, BasicRadioButtonMenuItemUI, SynthMenuItemUI
```
public class BasicMenuItemUI
extends MenuItemUI
```
BasicMenuItem implementation

Nested Class Summary

Nested Classes
Modifier and Type Class Description

protected class BasicMenuItemUI.MouseInputHandler
Mouse input handler

Field Summary

Fields
Modifier and Type	Field	Description
`protected String`	`acceleratorDelimiter`	Accelerator delimiter string, such as `'+'` in `'Ctrl+C'`.
`protected Font`	`acceleratorFont`	The accelerator font.
`protected Color`	`acceleratorForeground`	The color of the accelerator foreground.
`protected Color`	`acceleratorSelectionForeground`	The color of the accelerator selection.
`protected Icon`	`arrowIcon`	The arrow icon.
`protected Icon`	`checkIcon`	The check icon.
`protected int`	`defaultTextIconGap`	The gap between the text and the icon.
`protected Color`	`disabledForeground`	The color of the disabled foreground.
`protected MenuDragMouseListener`	`menuDragMouseListener`	The instance of `MenuDragMouseListener`.
`protected JMenuItem`	`menuItem`	The instance of `JMenuItem`.
`protected MenuKeyListener`	`menuKeyListener`	The instance of `MenuKeyListener`.
`protected MouseInputListener`	`mouseInputListener`	The instance of `MouseInputListener`.
`protected boolean`	`oldBorderPainted`	The value represents if the old border is painted.
`protected PropertyChangeListener`	`propertyChangeListener`	`PropertyChangeListener` returned from `createPropertyChangeListener`.
`protected Color`	`selectionBackground`	The color of the selection background.
`protected Color`	`selectionForeground`	The color of the selection foreground.

Constructor Summary

Constructors
Constructor Description

BasicMenuItemUI()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected MenuDragMouseListener`	`createMenuDragMouseListener(JComponent c)`	Returns an instance of `MenuDragMouseListener`.
`protected MenuKeyListener`	`createMenuKeyListener(JComponent c)`	Returns an instance of `MenuKeyListener`.
`protected MouseInputListener`	`createMouseInputListener(JComponent c)`	Returns an instance of `MouseInputListener`.
`protected PropertyChangeListener`	`createPropertyChangeListener(JComponent c)`	Creates a `PropertyChangeListener` which will be added to the menu item.
`static ComponentUI`	`createUI(JComponent c)`	Returns a new instance of `BasicMenuItemUI`.
`protected void`	`doClick(MenuSelectionManager msm)`	Call this method when a menu item is to be activated.
`MenuElement[]`	`getPath()`	Returns a menu element path.
`protected Dimension`	`getPreferredMenuItemSize(JComponent c, Icon checkIcon, Icon arrowIcon, int defaultTextIconGap)`	Returns the preferred size of a menu item.
`protected String`	`getPropertyPrefix()`	Returns a property prefix.
`protected void`	`installComponents(JMenuItem menuItem)`
`protected void`	`installDefaults()`	Installs default properties.
`protected void`	`installKeyboardActions()`	Registers keyboard action.
`protected void`	`installListeners()`	Registers listeners.
`protected void`	`paintBackground(Graphics g, JMenuItem menuItem, Color bgColor)`	Draws the background of the menu item.
`protected void`	`paintMenuItem(Graphics g, JComponent c, Icon checkIcon, Icon arrowIcon, Color background, Color foreground, int defaultTextIconGap)`	Paints a menu item.
`protected void`	`paintText(Graphics g, JMenuItem menuItem, Rectangle textRect, String text)`	Renders the text of the current menu item.
`protected void`	`uninstallComponents(JMenuItem menuItem)`	Unregisters components.
`protected void`	`uninstallDefaults()`	Uninstalls default properties.
`protected void`	`uninstallKeyboardActions()`	Unregisters keyboard actions.
`protected void`	`uninstallListeners()`	Unregisters listeners.
`void`	`update(Graphics g, JComponent c)`	We draw the background in paintMenuItem() so override update (which fills the background of opaque components by default) to just call paint().

Methods declared in class javax.swing.plaf.ComponentUI
contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMaximumSize, getMinimumSize, getPreferredSize, installUI, paint, uninstallUI

Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - menuItem
```
protected JMenuItem menuItem
```
    The instance of JMenuItem.
  - selectionBackground
```
protected Color selectionBackground
```
    The color of the selection background.
  - selectionForeground
```
protected Color selectionForeground
```
    The color of the selection foreground.
  - disabledForeground
```
protected Color disabledForeground
```
    The color of the disabled foreground.
  - acceleratorForeground
```
protected Color acceleratorForeground
```
    The color of the accelerator foreground.
  - acceleratorSelectionForeground
```
protected Color acceleratorSelectionForeground
```
    The color of the accelerator selection.
  - acceleratorDelimiter
```
protected String acceleratorDelimiter
```
    Accelerator delimiter string, such as '+' in 'Ctrl+C'.
    
    Since:
    
    1.7
  - defaultTextIconGap
```
protected int defaultTextIconGap
```
    The gap between the text and the icon.
  - acceleratorFont
```
protected Font acceleratorFont
```
    The accelerator font.
  - mouseInputListener
```
protected MouseInputListener mouseInputListener
```
    The instance of MouseInputListener.
  - menuDragMouseListener
```
protected MenuDragMouseListener menuDragMouseListener
```
    The instance of MenuDragMouseListener.
  - menuKeyListener
```
protected MenuKeyListener menuKeyListener
```
    The instance of MenuKeyListener.
  - propertyChangeListener
```
protected PropertyChangeListener propertyChangeListener
```
    PropertyChangeListener returned from createPropertyChangeListener. You should not need to access this field, rather if you want to customize the PropertyChangeListener override createPropertyChangeListener.
    
    Since:
    
    1.6
    
    See Also:
    
    createPropertyChangeListener(javax.swing.JComponent)
  - arrowIcon
```
protected Icon arrowIcon
```
    The arrow icon.
  - checkIcon
```
protected Icon checkIcon
```
    The check icon.
  - oldBorderPainted
```
protected boolean oldBorderPainted
```
    The value represents if the old border is painted.
- Constructor Detail
  - BasicMenuItemUI
```
public BasicMenuItemUI()
```
- Method Detail
  - createUI
```
public static ComponentUI createUI(JComponent c)
```
    Returns a new instance of BasicMenuItemUI.
    
    Parameters:
    
    c - a component
    
    Returns:
    
    a new instance of BasicMenuItemUI
  - installDefaults
```
protected void installDefaults()
```
    Installs default properties.
  - installComponents
```
protected void installComponents(JMenuItem menuItem)
```
    Parameters:
    
    menuItem - a menu item
    
    Since:
    
    1.3
  - getPropertyPrefix
```
protected String getPropertyPrefix()
```
    Returns a property prefix.
    
    Returns:
    
    a property prefix
  - installListeners
```
protected void installListeners()
```
    Registers listeners.
  - installKeyboardActions
```
protected void installKeyboardActions()
```
    Registers keyboard action.
  - uninstallDefaults
```
protected void uninstallDefaults()
```
    Uninstalls default properties.
  - uninstallComponents
```
protected void uninstallComponents(JMenuItem menuItem)
```
    Unregisters components.
    
    Parameters:
    
    menuItem - a menu item
    
    Since:
    
    1.3
  - uninstallListeners
```
protected void uninstallListeners()
```
    Unregisters listeners.
  - uninstallKeyboardActions
```
protected void uninstallKeyboardActions()
```
    Unregisters keyboard actions.
  - createMouseInputListener
```
protected MouseInputListener createMouseInputListener(JComponent c)
```
    Returns an instance of MouseInputListener.
    
    Parameters:
    
    c - a component
    
    Returns:
    
    an instance of MouseInputListener
  - createMenuDragMouseListener
```
protected MenuDragMouseListener createMenuDragMouseListener(JComponent c)
```
    Returns an instance of MenuDragMouseListener.
    
    Parameters:
    
    c - a component
    
    Returns:
    
    an instance of MenuDragMouseListener
  - createMenuKeyListener
```
protected MenuKeyListener createMenuKeyListener(JComponent c)
```
    Returns an instance of MenuKeyListener.
    
    Parameters:
    
    c - a component
    
    Returns:
    
    an instance of MenuKeyListener
  - createPropertyChangeListener
```
protected PropertyChangeListener createPropertyChangeListener(JComponent c)
```
    Creates a PropertyChangeListener which will be added to the menu item. If this method returns null then it will not be added to the menu item.
    
    Parameters:
    
    c - a component
    
    Returns:
    
    an instance of a PropertyChangeListener or null
    
    Since:
    
    1.6
  - getPreferredMenuItemSize
```
protected Dimension getPreferredMenuItemSize(JComponent c,
                                             Icon checkIcon,
                                             Icon arrowIcon,
                                             int defaultTextIconGap)
```
    Returns the preferred size of a menu item.
    
    Parameters:
    
    c - a component
    
    checkIcon - a check icon
    
    arrowIcon - an arrow icon
    
    defaultTextIconGap - a gap between a text and an icon
    
    Returns:
    
    the preferred size of a menu item
  - update
```
public void update(Graphics g,
                   JComponent c)
```
    We draw the background in paintMenuItem() so override update (which fills the background of opaque components by default) to just call paint().
    
    Overrides:
    
    update in class ComponentUI
    
    Parameters:
    
    g - the Graphics context in which to paint
    
    c - the component being painted; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components
    
    See Also:
    
    ComponentUI.paint(java.awt.Graphics, javax.swing.JComponent), JComponent.paintComponent(java.awt.Graphics)
  - paintMenuItem
```
protected void paintMenuItem(Graphics g,
                             JComponent c,
                             Icon checkIcon,
                             Icon arrowIcon,
                             Color background,
                             Color foreground,
                             int defaultTextIconGap)
```
    Paints a menu item.
    
    Parameters:
    
    g - an instance of Graphics
    
    c - a component
    
    checkIcon - a check icon
    
    arrowIcon - an arrow icon
    
    background - a background color
    
    foreground - a foreground color
    
    defaultTextIconGap - a gap between a text and an icon
  - paintBackground
```
protected void paintBackground(Graphics g,
                               JMenuItem menuItem,
                               Color bgColor)
```
    Draws the background of the menu item.
    
    Parameters:
    
    g - the paint graphics
    
    menuItem - menu item to be painted
    
    bgColor - selection background color
    
    Since:
    
    1.4
  - paintText
```
protected void paintText(Graphics g,
                         JMenuItem menuItem,
                         Rectangle textRect,
                         String text)
```
    Renders the text of the current menu item.
    
    Parameters:
    
    g - graphics context
    
    menuItem - menu item to render
    
    textRect - bounding rectangle for rendering the text
    
    text - string to render
    
    Since:
    
    1.4
  - getPath
```
public MenuElement[] getPath()
```
    Returns a menu element path.
    
    Returns:
    
    a menu element path
  - doClick
```
protected void doClick(MenuSelectionManager msm)
```
    Call this method when a menu item is to be activated. This method handles some of the details of menu item activation such as clearing the selected path and messaging the JMenuItem's doClick() method.
    
    Parameters:
    
    msm - A MenuSelectionManager. The visual feedback and internal bookkeeping tasks are delegated to this MenuSelectionManager. If null is passed as this argument, the MenuSelectionManager.defaultManager is used.
    
    Since:
    
    1.4
    
    See Also:
    
    MenuSelectionManager, AbstractButton.doClick(int)

Class BasicMenuItemUI

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods declared in class javax.swing.plaf.ComponentUI

Methods declared in class java.lang.Object

Field Detail

menuItem

selectionBackground

selectionForeground

disabledForeground

acceleratorForeground

acceleratorSelectionForeground

acceleratorDelimiter

defaultTextIconGap

acceleratorFont

mouseInputListener

menuDragMouseListener

menuKeyListener

propertyChangeListener

arrowIcon

checkIcon

oldBorderPainted

Constructor Detail

BasicMenuItemUI

Method Detail

createUI

installDefaults

installComponents

getPropertyPrefix

installListeners

installKeyboardActions

uninstallDefaults

uninstallComponents

uninstallListeners

uninstallKeyboardActions

createMouseInputListener

createMenuDragMouseListener

createMenuKeyListener

createPropertyChangeListener

getPreferredMenuItemSize

update

paintMenuItem

paintBackground

paintText

getPath

doClick