javax.swing.plaf.basic

Class BasicMenuBarUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.MenuBarUI

javax.swing.plaf.basic.BasicMenuBarUI

public class BasicMenuBarUI
extends javax.swing.plaf.MenuBarUI

UI Delegate for JMenuBar.

Field Summary

Fields

Modifier and Type	Field and Description
protected javax.swing.event.ChangeListener	changeListener
protected java.awt.event.ContainerListener	containerListener
protected javax.swing.JMenuBar	menuBar

Constructor Summary

Constructors

Constructor and Description
BasicMenuBarUI() Creates a new BasicMenuBarUI object.

Method Summary

Methods

Modifier and Type	Method and Description
protected javax.swing.event.ChangeListener	createChangeListener() Creates ChangeListener
protected java.awt.event.ContainerListener	createContainerListener() Creates ContainerListener() to listen for ContainerEvents fired by JMenuBar.
static javax.swing.plaf.ComponentUI	createUI(javax.swing.JComponent x) Factory method to create a BasicMenuBarUI for the given JComponent, which should be a JMenuBar.
java.awt.Dimension	getMaximumSize(javax.swing.JComponent c) Returns maximum size for the specified menu bar
java.awt.Dimension	getMinimumSize(javax.swing.JComponent c) Returns maximum allowed size of JMenuBar.
java.awt.Dimension	getPreferredSize(javax.swing.JComponent c) Returns preferred size of JMenuBar.
protected void	installDefaults() Initializes any default properties that this UI has from the defaults for the Basic look and feel.
protected void	installKeyboardActions() This method installs the keyboard actions for the JMenuBar.
protected void	installListeners() This method installs the listeners needed for this UI to function.
void	installUI(javax.swing.JComponent c) Installs and initializes all fields for this UI delegate.
protected void	uninstallDefaults() This method uninstalls the defaults and nulls any objects created during install.
protected void	uninstallKeyboardActions() This method reverses the work done in installKeyboardActions.
protected void	uninstallListeners() Unregisters all the listeners that this UI delegate was using.
void	uninstallUI(javax.swing.JComponent c) Performs the opposite of installUI.

Methods inherited from class javax.swing.plaf.ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount, paint, update

Methods inherited from class java.lang.Object

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

Field Detail

changeListener

protected javax.swing.event.ChangeListener changeListener

containerListener

protected java.awt.event.ContainerListener containerListener

menuBar

protected javax.swing.JMenuBar menuBar

Constructor Detail

BasicMenuBarUI

public BasicMenuBarUI()

Creates a new BasicMenuBarUI object.

Method Detail

createChangeListener

protected javax.swing.event.ChangeListener createChangeListener()

Creates ChangeListener

Returns:

The ChangeListener

createContainerListener

protected java.awt.event.ContainerListener createContainerListener()

Creates ContainerListener() to listen for ContainerEvents fired by JMenuBar.

Returns:

The ContainerListener

createUI

public static javax.swing.plaf.ComponentUI createUI(javax.swing.JComponent x)

Factory method to create a BasicMenuBarUI for the given JComponent, which should be a JMenuBar.

Parameters:

x - The JComponent a UI is being created for.

Returns:

A BasicMenuBarUI for the JComponent.

getMaximumSize

public java.awt.Dimension getMaximumSize(javax.swing.JComponent c)

Returns maximum size for the specified menu bar

Overrides:

getMaximumSize in class javax.swing.plaf.ComponentUI

Parameters:

c - component for which to get maximum size

Returns:

Maximum size for the specified menu bar

getMinimumSize

public java.awt.Dimension getMinimumSize(javax.swing.JComponent c)

Returns maximum allowed size of JMenuBar.

Overrides:

getMinimumSize in class javax.swing.plaf.ComponentUI

Parameters:

c - menuBar for which to return maximum size

Returns:

Maximum size of the give menu bar.

getPreferredSize

public java.awt.Dimension getPreferredSize(javax.swing.JComponent c)

Returns preferred size of JMenuBar.

Overrides:

getPreferredSize in class javax.swing.plaf.ComponentUI

Parameters:

c - menuBar for which to return preferred size

Returns:

Preferred size of the give menu bar.

installDefaults

protected void installDefaults()

Initializes any default properties that this UI has from the defaults for the Basic look and feel.

installKeyboardActions

protected void installKeyboardActions()

This method installs the keyboard actions for the JMenuBar.

installListeners

protected void installListeners()

This method installs the listeners needed for this UI to function.

installUI

public void installUI(javax.swing.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 class javax.swing.plaf.ComponentUI

Parameters:

c - The JComponent that is having this UI installed.

See Also:

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

uninstallDefaults

protected void uninstallDefaults()

This method uninstalls the defaults and nulls any objects created during install.

uninstallKeyboardActions

protected void uninstallKeyboardActions()

This method reverses the work done in installKeyboardActions.

uninstallListeners

protected void uninstallListeners()

Unregisters all the listeners that this UI delegate was using.

uninstallUI

public void uninstallUI(javax.swing.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 class javax.swing.plaf.ComponentUI

Parameters:

c - The JComponent that is having this UI uninstalled.

See Also:

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