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Class MetalMenuBarUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.MenuBarUI

javax.swing.plaf.basic.BasicMenuBarUI

javax.swing.plaf.metal.MetalMenuBarUI

public class MetalMenuBarUI extends BasicMenuBarUI

Metal implementation of MenuBarUI. This class is responsible for providing the metal look and feel for JMenuBars.

Since:

1.5

See Also:

Field Summary

Fields declared in class javax.swing.plaf.basic.BasicMenuBarUI

changeListener, containerListener, menuBar

Constructor Summary

Constructor	Description
`MetalMenuBarUI()`	Constructs a `MetalMenuBarUI`.

Method Summary

Modifier and Type	Method	Description
`static ComponentUI`	`createUI(JComponent x)`	Creates the `ComponentUI` implementation for the passed in component.
`void`	`installUI(JComponent c)`	Configures the specified component appropriate for the metal look and feel.
`void`	`uninstallUI(JComponent c)`	Reverses configuration which was done on the specified component during `installUI`.
`void`	`update(Graphics g, JComponent c)`	If necessary paints the background of the component, then invokes `paint`.

Methods declared in class javax.swing.plaf.basic.BasicMenuBarUI

createChangeListener, createContainerListener, installDefaults, installKeyboardActions, installListeners, uninstallDefaults, uninstallKeyboardActions, uninstallListeners

Methods declared in class javax.swing.plaf.ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMaximumSize, getMinimumSize, getPreferredSize, paint

Methods declared in class java.lang.Object

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

Constructor Details

MetalMenuBarUI

public MetalMenuBarUI()

Constructs a MetalMenuBarUI.

Method Details

createUI

public static ComponentUI createUI(JComponent x)

Creates the ComponentUI implementation for the passed in component.

Parameters:: x - JComponent to create the ComponentUI implementation for
Returns:: ComponentUI implementation for x
Throws:: NullPointerException - if x is null

installUI

public void installUI(JComponent c)

Configures the specified component appropriate for the metal look and feel.

Overrides:

installUI in class ComponentUI

Parameters:

c - the component where this UI delegate is being installed

Throws:

NullPointerException - if c is null.

See Also:

uninstallUI

public void uninstallUI(JComponent c)

Reverses configuration which was done on the specified component during installUI.

Overrides:

uninstallUI in class ComponentUI

Parameters:

c - the component where this UI delegate is being installed

Throws:

NullPointerException - if c is null.

See Also:

update

public void update(Graphics g, JComponent c)

If necessary paints the background of the component, then invokes paint.

Overrides:

update in class ComponentUI

Parameters:

g - Graphics to paint to

c - JComponent painting on

Throws:

NullPointerException - if g or c is null

Since:

1.5

See Also:

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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/javax/swing/plaf/metal/MetalMenuBarUI.html