BasicMenuBarUI (Java Platform SE 6)
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Java™ PlatformStandard Ed. 6
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javax.swing.plaf.basic
Class BasicMenuBarUI
java.lang.Object
javax.swing.plaf.ComponentUI
javax.swing.plaf.MenuBarUI
javax.swing.plaf.basic.BasicMenuBarUI
Direct Known Subclasses: MetalMenuBarUI
public class BasicMenuBarUIextends MenuBarUI
A default L&F implementation of MenuBarUI. This implementation
is a "combined" view/controller.
Field Summary
protected ChangeListener
changeListener
protected ContainerListener
containerListener
protected JMenuBar
menuBar
Constructor Summary
BasicMenuBarUI()
Method Summary
protected ChangeListener
createChangeListener()
protected ContainerListener
createContainerListener()
static ComponentUI
createUI(JComponent x)
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.
protected void
installDefaults()
protected void
installKeyboardActions()
protected void
installListeners()
void
installUI(JComponent c)
Configures the specified component appropriate for the look and feel.
protected void
uninstallDefaults()
protected void
uninstallKeyboardActions()
protected void
uninstallListeners()
void
uninstallUI(JComponent c)
Reverses configuration which was done on the specified component during
installUI.
Methods inherited from class javax.swing.plaf.ComponentUI
contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getPreferredSize, paint, update
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Field Detail
menuBar
protected JMenuBar menuBar
containerListener
protected ContainerListener containerListener
changeListener
protected ChangeListener changeListener
Constructor Detail
BasicMenuBarUI
public BasicMenuBarUI()
Method Detail
createUI
public static ComponentUI createUI(JComponent x)
installUI
public void installUI(JComponent c)
Description copied from class: ComponentUI
Configures the specified component appropriate 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:
Install any 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.
Install a LayoutManager on the component if necessary.
Create/add any required sub-components to the component.
Create/install event listeners on the component.
Create/install a PropertyChangeListener on the component in order
to detect and respond to component property changes appropriately.
Install keyboard UI (mnemonics, traversal, etc.) on the component.
Initialize any appropriate instance data.
Overrides:installUI in class ComponentUI
Parameters:c - the component where this UI delegate is being installedSee Also:ComponentUI.uninstallUI(javax.swing.JComponent),
JComponent.setUI(javax.swing.plaf.ComponentUI),
JComponent.updateUI()
installDefaults
protected void installDefaults()
installListeners
protected void installListeners()
installKeyboardActions
protected void installKeyboardActions()
uninstallUI
public void uninstallUI(JComponent c)
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:
Remove any UI-set borders from the component.
Remove any UI-set layout managers on the component.
Remove any UI-added sub-components from the component.
Remove any UI-added event/property listeners from the component.
Remove any UI-installed keyboard UI from the component.
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 componentsSee Also:ComponentUI.installUI(javax.swing.JComponent),
JComponent.updateUI()
uninstallDefaults
protected void uninstallDefaults()
uninstallListeners
protected void uninstallListeners()
uninstallKeyboardActions
protected void uninstallKeyboardActions()
createContainerListener
protected ContainerListener createContainerListener()
createChangeListener
protected ChangeListener createChangeListener()
getMinimumSize
public Dimension getMinimumSize(JComponent c)
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 nullSee Also:JComponent.getMinimumSize(),
LayoutManager.minimumLayoutSize(java.awt.Container),
ComponentUI.getPreferredSize(javax.swing.JComponent)
getMaximumSize
public Dimension getMaximumSize(JComponent c)
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 nullSee Also:JComponent.getMaximumSize(),
LayoutManager2.maximumLayoutSize(java.awt.Container)
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Submit a bug or featureFor further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. Copyright 2009 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
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