JavaTM 2 Platform
Standard Ed. 5.0

Class BasicPopupMenuUI

  extended by javax.swing.plaf.ComponentUI
      extended by javax.swing.plaf.PopupMenuUI
          extended by javax.swing.plaf.basic.BasicPopupMenuUI

public class BasicPopupMenuUI
extends PopupMenuUI

A Windows L&F implementation of PopupMenuUI. This implementation is a "combined" view/controller.

Field Summary
protected  JPopupMenu popupMenu
Constructor Summary
Method Summary
static ComponentUI createUI(JComponent x)
 void installDefaults()
protected  void installKeyboardActions()
protected  void installListeners()
 void installUI(JComponent c)
          Configures the specified component appropriate for the look and feel.
 boolean isPopupTrigger(MouseEvent e)
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.PopupMenuUI
Methods inherited from class javax.swing.plaf.ComponentUI
contains, getAccessibleChild, getAccessibleChildrenCount, getMaximumSize, getMinimumSize, getPreferredSize, paint, update
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail


protected JPopupMenu popupMenu
Constructor Detail


public BasicPopupMenuUI()
Method Detail


public static ComponentUI createUI(JComponent x)


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:
  1. 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.
  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.

installUI in class ComponentUI
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()


public void installDefaults()


protected void installListeners()


protected void installKeyboardActions()


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:
  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.

uninstallUI in class ComponentUI
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()


protected void uninstallDefaults()


protected void uninstallListeners()


protected void uninstallKeyboardActions()


public boolean isPopupTrigger(MouseEvent e)
isPopupTrigger in class PopupMenuUI

JavaTM 2 Platform
Standard Ed. 5.0

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.