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java.lang.Objectjavax.swing.plaf.ComponentUI
javax.swing.plaf.ComboBoxUI
public abstract class ComboBoxUI
An abstract base class for delegates that implement the pluggable
look and feel for a JComboBox
.
Constructor Summary | |
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ComboBoxUI()
Constructs a new ComboBoxUI . |
Method Summary | |
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abstract boolean |
isFocusTraversable(JComboBox c)
Determines whether the combo box can receive input focus. |
abstract boolean |
isPopupVisible(JComboBox c)
Determines whether the popup button is currently visible. |
abstract void |
setPopupVisible(JComboBox c,
boolean visible)
Sets the visibility of the popup button. |
Methods inherited from class javax.swing.plaf.ComponentUI |
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contains, createUI, getAccessibleChild, getAccessibleChildrenCount, getMaximumSize, getMinimumSize, getPreferredSize, installUI, paint, uninstallUI, update |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ComboBoxUI()
ComboBoxUI
.
Method Detail |
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public abstract void setPopupVisible(JComboBox c, boolean visible)
c
- the JComboBox
whose popup
is shown or hidden.visible
- true
to show the popup, false
to hide it.public abstract boolean isPopupVisible(JComboBox c)
c
- the JComboBox
whose popup visibility
is retrieved.
true
if the popup button is currently
visible, false
otherwise.public abstract boolean isFocusTraversable(JComboBox c)
c
- JComboBox
whose focus traversability
is to be retrieved.
true
if c
can receive
input focus, false
otherwise.
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