Class BasicMenuItemUI

protected Font acceleratorFont

Font to be used when displaying menu item's accelerator.

protected Color acceleratorForeground

Color to be used when displaying menu item's accelerator.

protected Color acceleratorSelectionForeground

Color to be used when displaying menu item's accelerator when menu item is selected.

protected Icon arrowIcon

Icon that is displayed after the text to indicated that this menu contains submenu.

protected Icon checkIcon

Icon that is displayed before the text. This icon is only used in JCheckBoxMenuItem or JRadioBoxMenuItem.

protected int defaultTextIconGap

Number of spaces between icon and text.

protected Color disabledForeground

Color of the text when menu item is disabled

protected MenuDragMouseListener menuDragMouseListener

The menu Drag mouse listener listening to the menu item.

protected JMenuItem menuItem

The menu item itself

protected MenuKeyListener menuKeyListener

Menu Key listener listening to the menu item.

protected MouseInputListener mouseInputListener

mouse input listener listening to menu item.

protected boolean oldBorderPainted

Indicates if border should be painted

protected Color selectionBackground

Color of text that is used when menu item is selected

protected Color selectionForeground

Color of the text that is used when menu item is selected.

public BasicMenuItemUI()

Creates a new BasicMenuItemUI object.

protected MenuDragMouseListener createMenuDragMouseListener(JComponent c)

Create MenuDragMouseListener to listen for mouse dragged events.

Parameters:

c - menu item to listen to

Returns:

The MenuDragMouseListener

protected MenuKeyListener createMenuKeyListener(JComponent c)

Creates MenuKeyListener to listen to key events occuring when menu item is visible on the screen.

Parameters:

c - menu item to listen to

Returns:

The MenuKeyListener

protected MouseInputListener createMouseInputListener(JComponent c)

Handles mouse input events occuring for this menu item

Parameters:

c - menu item to listen to

Returns:

The MouseInputListener

public static ComponentUI createUI(JComponent c)

Factory method to create a BasicMenuItemUI for the given JComponent, which should be a JMenuItem.

Overrides:

createUI in interface ComponentUI

Parameters:

c - The JComponent a UI is being created for.

Returns:

A BasicMenuItemUI for the JComponent.

protected void doClick(MenuSelectionManager msm)

Programatically clicks menu item.

Parameters:

msm - MenuSelectionManager for the menu hierarchy

public Dimension getMaximumSize(JComponent c)

Returns maximum size for the specified menu item

Overrides:

getMaximumSize in interface ComponentUI

Parameters:

c - component for which to get maximum size

Returns:

Maximum size for the specified menu item.

public Dimension getMinimumSize(JComponent c)

Returns minimum size for the specified menu item

Overrides:

getMinimumSize in interface ComponentUI

Parameters:

c - component for which to get minimum size

Returns:

Minimum size for the specified menu item.

public MenuElement[] getPath()

Returns path to this menu item.

Returns:

$MenuElement[]$ Returns array of menu elements that constitute a path to this menu item.

protected Dimension getPreferredMenuItemSize(JComponent c,
                                             Icon checkIcon,
                                             Icon arrowIcon,
                                             int defaultTextIconGap)

Returns preferred size for the given menu item.

Parameters:

c - menu item for which to get preferred size

checkIcon - check icon displayed in the given menu item

arrowIcon - arrow icon displayed in the given menu item

defaultTextIconGap - space between icon and text in the given menuItem

Returns:

$Dimension$ preferred size for the given menu item

public Dimension getPreferredSize(JComponent c)

Returns preferred size of the given component

Overrides:

getPreferredSize in interface ComponentUI

Parameters:

c - component for which to return preferred size

Returns:

$Dimension$ preferred size for the given component

protected String getPropertyPrefix()

Returns the prefix for entries in the UIDefaults table.

Returns:

"MenuItem"

protected void installComponents(JMenuItem menuItem)

This method installs the components for this JMenuItem.

Parameters:

menuItem - The JMenuItem to install components for.

protected void installDefaults()

This method installs the defaults that are defined in the Basic look and feel for this JMenuItem.

protected void installKeyboardActions()

This method installs the keyboard actions for this JMenuItem.

protected void installListeners()

This method installs the listeners for the JMenuItem.

public void installUI(JComponent c)

Installs and initializes all fields for this UI delegate. Any properties of the UI that need to be initialized and/or set to defaults will be done now. It will also install any listeners necessary.

Overrides:

installUI in interface ComponentUI

Parameters:

c - The JComponent that is having this UI installed.

public void paint(Graphics g,
                  JComponent c)

Paints given menu item using specified graphics context

Overrides:

paint in interface ComponentUI

Parameters:

g - The graphics context used to paint this menu item

c - Menu Item to paint

protected void paintBackground(Graphics g,
                               JMenuItem menuItem,
                               Color bgColor)

Paints background of the menu item

Parameters:

g - The graphics context used to paint this menu item

menuItem - menu item to paint

bgColor - Background color to use when painting menu item

protected void paintMenuItem(Graphics g,
                             JComponent c,
                             Icon checkIcon,
                             Icon arrowIcon,
                             Color background,
                             Color foreground,
                             int defaultTextIconGap)

Paints specified menu item

Parameters:

g - The graphics context used to paint this menu item

c - menu item to paint

checkIcon - check icon to use when painting menu item

arrowIcon - arrow icon to use when painting menu item

background - Background color of the menu item

foreground - Foreground color of the menu item

defaultTextIconGap - space to use between icon and text when painting menu item

protected void paintText(Graphics g,
                         JMenuItem menuItem,
                         Rectangle textRect,
                         String text)

Paints label for the given menu item

Parameters:

g - The graphics context used to paint this menu item

menuItem - menu item for which to draw its label

textRect - rectangle specifiying position of the text relative to the given menu item

text - label of the menu item

protected void uninstallComponents(JMenuItem menuItem)

This method uninstalls the components for this JMenuItem.

Parameters:

menuItem - The JMenuItem to uninstall components for.

protected void uninstallDefaults()

This method uninstalls the defaults and sets any objects created during install to null

protected void uninstallKeyboardActions()

Uninstalls any keyboard actions.

protected void uninstallListeners()

Unregisters all the listeners that this UI delegate was using.

public void uninstallUI(JComponent c)

Performs the opposite of installUI. Any properties or resources that need to be cleaned up will be done now. It will also uninstall any listeners it has. In addition, any properties of this UI will be nulled.

Overrides:

uninstallUI in interface ComponentUI

Parameters:

c - The JComponent that is having this UI uninstalled.

public void update(Graphics g,
                   JComponent c)

This method calls paint.

Overrides:

update in interface ComponentUI

Parameters:

g - The graphics context used to paint this menu item

c - The menu item to paint