/*
* org.openmicroscopy.shoola.agents.util.ui.DowngradeChooser
*
*------------------------------------------------------------------------------
* Copyright (C) 2006-2012 University of Dundee & Open Microscopy Environment.
* 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.agents.util.ui;
//Java imports
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.filechooser.FileFilter;
//Third-party libraries
//Application-internal dependencies
import org.openmicroscopy.shoola.env.data.util.Target;
import org.openmicroscopy.shoola.env.data.util.TransformsParser;
import org.openmicroscopy.shoola.util.ui.IconManager;
import org.openmicroscopy.shoola.util.ui.UIUtilities;
import org.openmicroscopy.shoola.util.ui.filechooser.FileChooser;
/**
* Displays the downgrade sheets.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @since Beta4.4
*/
public class DowngradeChooser
extends FileChooser
{
/** Flag indicating to display the help page.*/
public static final String HELP_DOWNGRADE_PROPERTY = "helpDowngrade";
/** The possible downgrade schema.*/
private List<Target> targets;
/** The selection of downgrade sheets.*/
private JComboBox box;
/** The button to bring up the help page.*/
private JButton helpButton;
/** The parser used to read the downgrade sheets.*/
private TransformsParser parser;
/**
* Creates a new instance.
*
* @param owner The owner of this dialog.
* @param dialogType One of the constants defined by this class.
* @param title Title of the dialog.
* @param message Message of the dialog.
* @param filters The list of filters.
*/
public DowngradeChooser(JFrame owner, int dialogType, String title,
String message, List<FileFilter> filters)
{
super(owner, dialogType, title, message, filters);
}
/**
* Loads the specification if available.
* @throws Thrown when an error occurred while parsing the catalog.
*/
public void parseData()
throws Exception
{
helpButton = new JButton();
UIUtilities.unifiedButtonLookAndFeel(helpButton);
helpButton.setIcon(IconManager.getInstance().getIcon(IconManager.HELP));
//Load the specification folder and parse the file.
helpButton.addActionListener(new ActionListener() {
/**
* Brings up the URL.
* @see ActionListener#actionPerformed(ActionEvent)
*/
public void actionPerformed(ActionEvent e) {
firePropertyChange(HELP_DOWNGRADE_PROPERTY,
Boolean.valueOf(false), Boolean.valueOf(true));
}
});
parser = new TransformsParser();
parser.parse();
targets = parser.getTargets();
Collections.reverse(targets);
//Build the UI
Iterator<Target> i = targets.iterator();
Object[] values = new Object[targets.size()+1];
values[0] = parser.getCurrentSchema()+" (current)";
int index = 1;
while (i.hasNext()) {
values[index] = i.next();
index++;
}
box = new JComboBox(values);
JPanel p = new JPanel();
p.setLayout(new FlowLayout(FlowLayout.LEFT));
p.add(new JLabel("Version:"));
p.add(box);
p.add(helpButton);
addComponentToControls(p);
}
/**
* Returns the selected target.
*
* @return See above.
*/
public Target getSelectedSchema()
{
if (box == null) return null;
Object ho = box.getSelectedItem();
if (ho instanceof Target) return (Target) ho;
return null;
}
}