Class ComboBoxUI

java.lang.Object
javax.swing.plaf.ComponentUI
javax.swing.plaf.ComboBoxUI
Direct Known Subclasses:
BasicComboBoxUI, MultiComboBoxUI 
public abstract class ComboBoxUI extends ComponentUI
Pluggable look and feel interface for JComboBox.

Constructor Summary

ComboBoxUI()
Modifier Constructor Description
protected
Constructor for subclasses to call.

Method Summary

Modifier and Type Method Description
abstract boolean isFocusTraversable(JComboBox<?> c)
Determine whether or not the combo box itself is traversable
abstract boolean isPopupVisible(JComboBox<?> c)
Determine the visibility of the popup
abstract void setPopupVisible(JComboBox<?> c, boolean v)
Set the visibility of the popup

Methods declared in class javax.swing.plaf.ComponentUI

contains, createUI, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMaximumSize, getMinimumSize, getPreferredSize, installUI, paint, uninstallUI, update

Methods declared in class java.lang.Object

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

Constructor Details

ComboBoxUI

protected ComboBoxUI()
Constructor for subclasses to call.

Method Details

setPopupVisible

public abstract void setPopupVisible(JComboBox<?> c, boolean v)
Set the visibility of the popup
Parameters:
c - a JComboBox
v - a boolean determining the visibilty of the popup

isPopupVisible

public abstract boolean isPopupVisible(JComboBox<?> c)
Determine the visibility of the popup
Parameters:
c - a JComboBox
Returns:
true if popup of the JComboBox is visible

isFocusTraversable

public abstract boolean isFocusTraversable(JComboBox<?> c)
Determine whether or not the combo box itself is traversable
Parameters:
c - a JComboBox
Returns:
true if the given JComboBox is traversable

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https://docs.oracle.com/en/java/javase/17/docs/api/java.desktop/javax/swing/plaf/ComboBoxUI.html