javax.swing.plaf.basic
Class BasicMenuItemUI

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

Disabled: no SafeJ information.

BasicMenuItem implementation

Nested Class Summary

protected class

BasicMenuItemUI.MouseInputHandler

Field Summary

protected String	acceleratorDelimiter Accelerator delimiter string, such as '+' in 'Ctrl+C'.
protected Font	acceleratorFont
protected Color	acceleratorForeground
protected Color	acceleratorSelectionForeground
protected Icon	arrowIcon
protected Icon	checkIcon
protected int	defaultTextIconGap
protected Color	disabledForeground
protected MenuDragMouseListener	menuDragMouseListener
protected JMenuItem	menuItem
protected MenuKeyListener	menuKeyListener
protected MouseInputListener	mouseInputListener
protected boolean	oldBorderPainted
protected PropertyChangeListener	propertyChangeListener PropertyChangeListener returned from createPropertyChangeListener.
protected Color	selectionBackground
protected Color	selectionForeground

Constructor Summary

BasicMenuItemUI()

Method Summary

protected MenuDragMouseListener	createMenuDragMouseListener(JComponent c)
protected MenuKeyListener	createMenuKeyListener(JComponent c)
protected MouseInputListener	createMouseInputListener(JComponent c)
protected PropertyChangeListener	createPropertyChangeListener(JComponent c) Creates a PropertyChangeListener which will be added to the menu item.
static ComponentUI	createUI(JComponent c)
protected void	doClick(MenuSelectionManager msm) Call this method when a menu item is to be activated.
Dimension	getMaximumSize(JComponent c) Returns the specified component's maximum size appropriate for the look and feel.
Dimension	getMinimumSize(JComponent c) Returns the specified component's minimum size appropriate for the look and feel.
MenuElement[]	getPath()
protected Dimension	getPreferredMenuItemSize(JComponent c, Icon checkIcon, Icon arrowIcon, int defaultTextIconGap)
Dimension	getPreferredSize(JComponent c) Returns the specified component's preferred size appropriate for the look and feel.
protected String	getPropertyPrefix()
protected void	installComponents(JMenuItem menuItem)
protected void	installDefaults()
protected void	installKeyboardActions()
protected void	installListeners()
void	installUI(JComponent c) Configures the specified component appropriately for the look and feel.
void	paint(Graphics g, JComponent c) Paints the specified component appropriately for the look and feel.
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)
protected void	paintText(Graphics g, JMenuItem menuItem, Rectangle textRect, String text) Renders the text of the current menu item.
protected void	uninstallComponents(JMenuItem menuItem)
protected void	uninstallDefaults()
protected void	uninstallKeyboardActions()
protected void	uninstallListeners()
void	uninstallUI(JComponent c) Reverses configuration which was done on the specified component during installUI.
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 inherited from class javax.swing.plaf.ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior

Methods inherited from class java.lang.Object

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

Field Detail

menuItem

protected JMenuItem menuItem

Class is disabled.

selectionBackground

protected Color selectionBackground

Class is disabled.

selectionForeground

protected Color selectionForeground

Class is disabled.

disabledForeground

protected Color disabledForeground

Class is disabled.

acceleratorForeground

protected Color acceleratorForeground

Class is disabled.

acceleratorSelectionForeground

protected Color acceleratorSelectionForeground

Class is disabled.

acceleratorDelimiter

protected String acceleratorDelimiter

Class is disabled.

Accelerator delimiter string, such as '+' in 'Ctrl+C'.

Since:

1.7

defaultTextIconGap

protected int defaultTextIconGap

Class is disabled.

acceleratorFont

protected Font acceleratorFont

Class is disabled.

mouseInputListener

protected MouseInputListener mouseInputListener

Class is disabled.

menuDragMouseListener

protected MenuDragMouseListener menuDragMouseListener

Class is disabled.

menuKeyListener

protected MenuKeyListener menuKeyListener

Class is disabled.

propertyChangeListener

protected PropertyChangeListener propertyChangeListener

Class is disabled.

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

Class is disabled.

checkIcon

protected Icon checkIcon

Class is disabled.

oldBorderPainted

protected boolean oldBorderPainted

Class is disabled.

Constructor Detail

BasicMenuItemUI

public BasicMenuItemUI()

Class is disabled.

Method Detail

createUI

public static ComponentUI createUI(JComponent c)

Class is disabled.

installUI

public void installUI(JComponent c)

Class is disabled.

Description copied from class: ComponentUI

Configures the specified component appropriately for the look and feel. This method is invoked when the ComponentUI instance is being installed as the UI delegate on the specified component. This method should completely configure the component for the look and feel, including the following:

1. Install default property values for color, fonts, borders, icons, opacity, etc. on the component. Whenever possible, property values initialized by the client program should not be overridden.
2. Install a LayoutManager on the component if necessary.
3. Create/add any required sub-components to the component.
4. Create/install event listeners on the component.
5. Create/install a PropertyChangeListener on the component in order to detect and respond to component property changes appropriately.
6. Install keyboard UI (mnemonics, traversal, etc.) on the component.
7. Initialize any appropriate instance data.

Overrides:

installUI in class ComponentUI

Parameters:

c - the component where this UI delegate is being installed

See Also:

ComponentUI.uninstallUI(javax.swing.JComponent), JComponent.setUI(javax.swing.plaf.ComponentUI), JComponent.updateUI()

installDefaults

protected void installDefaults()

Class is disabled.

installComponents

protected void installComponents(JMenuItem menuItem)

Class is disabled.

Since:

1.3

getPropertyPrefix

protected String getPropertyPrefix()

Class is disabled.

installListeners

protected void installListeners()

Class is disabled.

installKeyboardActions

protected void installKeyboardActions()

Class is disabled.

uninstallUI

public void uninstallUI(JComponent c)

Class is disabled.

Description copied from class: ComponentUI

Reverses configuration which was done on the specified component during installUI. This method is invoked when this UIComponent instance is being removed as the UI delegate for the specified component. This method should undo the configuration performed in installUI, being careful to leave the JComponent instance in a clean state (no extraneous listeners, look-and-feel-specific property objects, etc.). This should include the following:

1. Remove any UI-set borders from the component.
2. Remove any UI-set layout managers on the component.
3. Remove any UI-added sub-components from the component.
4. Remove any UI-added event/property listeners from the component.
5. Remove any UI-installed keyboard UI from the component.
6. Nullify any allocated instance data objects to allow for GC.

Overrides:

uninstallUI in class ComponentUI

Parameters:

c - the component from which this UI delegate is being removed; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

See Also:

ComponentUI.installUI(javax.swing.JComponent), JComponent.updateUI()

uninstallDefaults

protected void uninstallDefaults()

Class is disabled.

uninstallComponents

protected void uninstallComponents(JMenuItem menuItem)

Class is disabled.

Since:

1.3

uninstallListeners

protected void uninstallListeners()

Class is disabled.

uninstallKeyboardActions

protected void uninstallKeyboardActions()

Class is disabled.

createMouseInputListener

protected MouseInputListener createMouseInputListener(JComponent c)

Class is disabled.

createMenuDragMouseListener

protected MenuDragMouseListener createMenuDragMouseListener(JComponent c)

Class is disabled.

createMenuKeyListener

protected MenuKeyListener createMenuKeyListener(JComponent c)

Class is disabled.

createPropertyChangeListener

protected PropertyChangeListener createPropertyChangeListener(JComponent c)

Class is disabled.

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.

Returns:

an instance of a PropertyChangeListener or null

Since:

1.6

getMinimumSize

public Dimension getMinimumSize(JComponent c)

Class is disabled.

Description copied from class: ComponentUI

Returns the specified component's minimum size appropriate for the look and feel. If null is returned, the minimum size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method invokes getPreferredSize and returns that value.

Overrides:

getMinimumSize in class ComponentUI

Parameters:

c - the component whose minimum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

Returns:

a Dimension object or null

See Also:

JComponent.getMinimumSize(), LayoutManager.minimumLayoutSize(java.awt.Container), ComponentUI.getPreferredSize(javax.swing.JComponent)

getPreferredSize

public Dimension getPreferredSize(JComponent c)

Class is disabled.

Description copied from class: ComponentUI

Returns the specified component's preferred size appropriate for the look and feel. If null is returned, the preferred size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method returns null.

Overrides:

getPreferredSize in class ComponentUI

Parameters:

c - the component whose preferred size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

See Also:

JComponent.getPreferredSize(), LayoutManager.preferredLayoutSize(java.awt.Container)

getMaximumSize

public Dimension getMaximumSize(JComponent c)

Class is disabled.

Description copied from class: ComponentUI

Returns the specified component's maximum size appropriate for the look and feel. If null is returned, the maximum size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method invokes getPreferredSize and returns that value.

Overrides:

getMaximumSize in class ComponentUI

Parameters:

c - the component whose maximum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

Returns:

a Dimension object or null

See Also:

JComponent.getMaximumSize(), LayoutManager2.maximumLayoutSize(java.awt.Container)

getPreferredMenuItemSize

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

Class is disabled.

update

public void update(Graphics g,
                   JComponent c)

Class is disabled.

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)

paint

public void paint(Graphics g,
                  JComponent c)

Class is disabled.

Description copied from class: ComponentUI

Paints the specified component appropriately for the look and feel. This method is invoked from the ComponentUI.update method when the specified component is being painted. Subclasses should override this method and use the specified Graphics object to render the content of the component.

Overrides:

paint 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.update(java.awt.Graphics, javax.swing.JComponent)

paintMenuItem

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

Class is disabled.

paintBackground

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

Class is disabled.

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)

Class is disabled.

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()

Class is disabled.

doClick

protected void doClick(MenuSelectionManager msm)

Class is disabled.

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)