Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Interface ComboPopup - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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Java^TM 2 Platform
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javax.swing.plaf.basic
Interface ComboPopup

All Known Implementing Classes:: BasicComboPopup

public interface ComboPopup

The interface which defines the kind of popup menu that BasicComboBoxUI requires. Classes that implement this interface don't have to extend JPopupMenu. This interface demands very little so alternatives to JPopupMenu can be used.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. A future release of Swing will provide support for long term persistence.

Method Summary

KeyListener getKeyListener()
          Returns a key listener that shows and hides the popup.

JList getList()
          Returns the list that is being used to draw the items in the JComboBox.

MouseListener getMouseListener()
          Returns a mouse listener that shows and hides the popup.

MouseMotionListener getMouseMotionListener()
          Returns a mouse motion listener that makes the popup act like a menu.

void hide()
          Hides the popup

boolean isVisible()
          Returns whether or not the popup is visible

void show()
          Shows the popup

void uninstallingUI()
          Called to inform the ComboPopup that the UI is uninstalling.

Method Detail

show

public void show()

Shows the popup

hide

public void hide()

Hides the popup

isVisible

public boolean isVisible()

Returns whether or not the popup is visible

getList

public JList getList()

Returns the list that is being used to draw the items in the JComboBox.

getMouseListener

public MouseListener getMouseListener()

Returns a mouse listener that shows and hides the popup.

getMouseMotionListener

public MouseMotionListener getMouseMotionListener()

Returns a mouse motion listener that makes the popup act like a menu.

getKeyListener

public KeyListener getKeyListener()

Returns a key listener that shows and hides the popup.

uninstallingUI

public void uninstallingUI()

Called to inform the ComboPopup that the UI is uninstalling. If the ComboPopup added any listeners in the component, it should remove them here.