/****************************************************************************
 *			Tuning and Analysis Utilities
 *			http://www.cs.uoregon.edu/research/paracomp/tau
 ****************************************************************************
 * Copyright (c) 1997-2006
 *    Department of Computer and Information Science, University of Oregon
 *    Advanced Computing Laboratory, Los Alamos National Laboratory
 *    Research Center Juelich, ZAM Germany	
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Wyatt Spear - initial API and implementation
 *    Chris Navarro - re-implemented for JAXB custom widget
 ****************************************************************************/
package org.eclipse.ptp.etfw.tau.ui;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.ptp.etfw.tau.perfdmf.PerfDMFUIPlugin;
import org.eclipse.ptp.etfw.tau.ui.messages.Messages;
import org.eclipse.ptp.rm.jaxb.control.ui.AbstractWidget;
import org.eclipse.ptp.rm.jaxb.control.ui.IWidgetDescriptor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;

/**
 * This is a re-implementation of part of the TAUDataTab for selecting the performance database and makes it available to the
 * TAU JAXB tool implementation.
 * 
 * @TODO Finish implementing this advanced tab and test that it works correctly.
 * 
 * @see TAUDataTab
 * 
 * @author Wyatt Spear
 * @author Chris Navarro - re-implemented for JAXB custom widget
 * 
 */
public class PerformanceDatabaseCombo extends AbstractWidget {

	private final Combo combo;

	public PerformanceDatabaseCombo(Composite parent, IWidgetDescriptor wd) {
		super(parent, wd);

		setLayout(new GridLayout(1, false));

		combo = new Combo(this, SWT.READ_ONLY);
		combo.addSelectionListener(new SelectionListener() {

			@Override
			public void widgetSelected(SelectionEvent e) {
			}

			@Override
			public void widgetDefaultSelected(SelectionEvent e) {

			}
		});
		String[] dbs = null;
		try {
			dbs = PerfDMFUIPlugin.getPerfDMFView().getDatabaseNames();
		} catch (java.lang.NoClassDefFoundError e) {
			MessageDialog.openError(this.getShell(), Messages.PerformanceDatabaseCombo_TauJarDialogTitle,
					Messages.PerformanceDatabaseCombo_TauJarsNotFound);
		}

		if (dbs == null || dbs.length < 1) {
			combo.setItems(new String[] { Messages.PerformanceDatabaseCombo_NoDatabasesAvailable });
		} else {
			combo.setItems(dbs);
		}
		combo.select(0);

	}

	public Combo getCombo() {
		return combo;
	}

}