/*
* org.openmicroscopy.shoola.util.ui.tpane.TinyPaneIcon
*
*------------------------------------------------------------------------------
* Copyright (C) 2006 University of Dundee. All rights reserved.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*------------------------------------------------------------------------------
*/
package org.openmicroscopy.shoola.util.ui.tpane;
//Java imports
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.JLabel;
//Third-party libraries
//Application-internal dependencies
/**
* The frame icon in the {@link TitleBar}.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @version 2.2
* <small>
* (<b>Internal version:</b> $Revision: 4694 $ $Date: 2006-12-15 17:02:59 +0000 (Fri, 15 Dec 2006) $)
* </small>
* @since OME2.2
*/
public class TinyPaneIcon
extends JLabel
implements TinyObserver, PropertyChangeListener
{
/** The Model this icon is working with. */
private TinyPane model;
/**
* Creates a new instance.
*
* @param model The Model this icon will be working with.
* Mustn't be <code>null</code>.
*/
TinyPaneIcon(TinyPane model)
{
if (model == null) throw new NullPointerException("No model.");
this.model = model;
}
/**
* Registers this icon with the Model.
* @see TinyObserver#attach()
*/
public void attach()
{
model.addPropertyChangeListener(TinyPane.FRAME_ICON_PROPERTY, this);
propertyChange(null); //Synch icon w/ current state.
}
/**
* Detaches this icon from the Model's change notification registry.
* @see TinyObserver#detach()
*/
public void detach()
{
model.removePropertyChangeListener(TinyPane.FRAME_ICON_PROPERTY, this);
}
/**
* Updates the display every time the the Model's icon changes.
* @see PropertyChangeListener#propertyChange(PropertyChangeEvent)
*/
public void propertyChange(PropertyChangeEvent pce)
{
//NOTE: We can only receive FRAME_ICON_PROPERTY changes, see attach().
setIcon(model.getFrameIcon());
}
}