Package org.jdesktop.swingx

Class JXList.DelegatingRenderer

java.lang.Object

org.jdesktop.swingx.JXList.DelegatingRenderer

All Implemented Interfaces:

ListCellRenderer<E>, RolloverRenderer

Enclosing class:

JXList<E>

public class JXList.DelegatingRenderer
extends Object
implements ListCellRenderer<E>, RolloverRenderer

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

PENDING JW: formally implement UIDependent?

Constructor Summary

Constructors

Constructor	Description
DelegatingRenderer()	Instantiates a DelegatingRenderer with default renderer as delegate.
DelegatingRenderer(ListCellRenderer<E> delegate)	Instantiates a DelegatingRenderer with the given delegate.

Method Summary

Modifier and Type	Method	Description
void	doClick()	Same as AbstractButton.doClick().
ListCellRenderer<? super E>	getDelegateRenderer()	Returns the delegate.
Component	getListCellRendererComponent(JList<? extends E> list, E value, int index, boolean isSelected, boolean cellHasFocus)
boolean	isEnabled()
void	setDelegateRenderer(ListCellRenderer<? super E> delegate)	Sets the delegate.
void	updateUI()	Updates the ui of the delegate.

Methods inherited from class java.lang.Object

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

Constructor Details

DelegatingRenderer

public DelegatingRenderer()

Instantiates a DelegatingRenderer with default renderer as delegate.

DelegatingRenderer

public DelegatingRenderer(ListCellRenderer<E> delegate)

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

Parameters:

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

Method Details

setDelegateRenderer

public void setDelegateRenderer(ListCellRenderer<? super E> delegate)

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

Parameters:

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

getDelegateRenderer

public ListCellRenderer<? super E> getDelegateRenderer()

Returns the delegate.

Returns:

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

updateUI

public void updateUI()

Updates the ui of the delegate.

getListCellRendererComponent

public Component getListCellRendererComponent(JList<? extends E> list,
 E 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<E>

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