org.jdesktop.swingx

Class JXComboBox.DelegatingRenderer

java.lang.Object

org.jdesktop.swingx.JXComboBox.DelegatingRenderer

All Implemented Interfaces:

ListCellRenderer, UIDependent, RolloverRenderer

Enclosing class:

JXComboBox

public class JXComboBox.DelegatingRenderer
extends Object
implements ListCellRenderer, RolloverRenderer, UIDependent

A decorator for the original ListCellRenderer. Needed to hook highlighters after messaging the delegate.

Constructor Summary

Constructors

Constructor and Description
DelegatingRenderer() Instantiates a DelegatingRenderer with combo box's default renderer as delegate.
DelegatingRenderer(ListCellRenderer delegate) Instantiates a DelegatingRenderer with the given delegate.

Method Summary

Modifier and Type	Method and Description
void	doClick() Same as AbstractButton.doClick().
ListCellRenderer	getDelegateRenderer() Returns the delegate.
Component	getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus)
boolean	isEnabled()
void	setDelegateRenderer(ListCellRenderer delegate) Sets the delegate.
void	updateUI() Updates all internal visuals after changing a UI-delegate.

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegatingRenderer

public DelegatingRenderer()

Instantiates a DelegatingRenderer with combo box's default renderer as delegate.

DelegatingRenderer

public DelegatingRenderer(ListCellRenderer delegate)

Instantiates a DelegatingRenderer with the given delegate. If the delegate is null, the default is created via the combo box's factory method.

Parameters:

delegate - the delegate to use, if null the combo box's default is created and used.

Method Detail

setDelegateRenderer

public void setDelegateRenderer(ListCellRenderer delegate)

Sets the delegate. If the delegate is null, the default is created via the combo box's factory method.

Parameters:

delegate - the delegate to use, if null the list's default is created and used.

getDelegateRenderer

public ListCellRenderer getDelegateRenderer()

Returns the delegate.

Returns:

the delegate renderer used by this renderer, guaranteed to not-null.

updateUI

public void updateUI()

Updates all internal visuals after changing a UI-delegate.

Specified by:

updateUI in interface UIDependent

See Also:

JComponent.updateUI()

getListCellRendererComponent

public Component getListCellRendererComponent(JList list,
                                              Object value,
                                              int index,
                                              boolean isSelected,
                                              boolean cellHasFocus)

Overridden to apply the highlighters, if any, after calling the delegate. The decorators are not applied if the row is invalid.

Specified by:

getListCellRendererComponent in interface ListCellRenderer

isEnabled

public boolean isEnabled()

Specified by:

isEnabled in interface RolloverRenderer

Returns:

true if rollover effects are on and clickable.

doClick

public void doClick()

Same as AbstractButton.doClick(). It's up to client code to prepare the renderer's component before calling this method.

Specified by:

doClick in interface RolloverRenderer