it.tidalwave.role
Class MutableIconProviderSupport

java.lang.Object
  it.tidalwave.role.MutableIconProviderSupport

All Implemented Interfaces:

IconProvider, MutableIconProvider

public abstract class MutableIconProviderSupport
extends Object
implements MutableIconProvider

A convenient support for implementing a MutableIconProvider.

Version:

$Id$

Author:

Fabrizio Giudici

Status: draft API

Field Summary

Fields inherited from interface it.tidalwave.role.MutableIconProvider

MutableIconProvider, PROP_ICON

Fields inherited from interface it.tidalwave.role.IconProvider

DEFAULT, IconProvider

Constructor Summary

MutableIconProviderSupport()

Method Summary

void	addPropertyChangeListener(PropertyChangeListener listener) Registers a PropertyChangeListener.
protected void	fireIconChange(Icon oldIcon, Icon newIcon) Fires the event notifying that PROP_ICON has been changed.
void	removePropertyChangeListener(PropertyChangeListener listener) Unregisters a PropertyChangeListener.
void	setIcon(Icon icon) Sets the icon.

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.tidalwave.role.IconProvider

getIcon

Constructor Detail

MutableIconProviderSupport

public MutableIconProviderSupport()

Method Detail

addPropertyChangeListener

public void addPropertyChangeListener(@Nonnull
                                      PropertyChangeListener listener)

Registers a PropertyChangeListener.

Specified by:

addPropertyChangeListener in interface MutableIconProvider

Parameters:

listener - the listener

removePropertyChangeListener

public void removePropertyChangeListener(@Nonnull
                                         PropertyChangeListener listener)

Unregisters a PropertyChangeListener.

Specified by:

removePropertyChangeListener in interface MutableIconProvider

Parameters:

listener - the listener

setIcon

public void setIcon(@Nonnull
                    Icon icon)

Sets the icon. Note that implementations don't actually need to do something in this method: for instance, a valid MutableIconProvider can autonomously change icon in function of time (e.g. a blinking icon) or reacting to a change in the context. FIXME: this method does nothing. Probably this is inconsistent with DefaultMutableDisplayable? But that is a Default*, we're just a *Support...

Specified by:

setIcon in interface MutableIconProvider

Parameters:

icon - the icon

fireIconChange

protected void fireIconChange(@Nonnull
                              Icon oldIcon,
                              @Nonnull
                              Icon newIcon)

Fires the event notifying that PROP_ICON has been changed.

Parameters:

oldIcon - the old value of the property

newIcon - the new value of the property