/*******************************************************************************
 * Copyright (c) 2000, 2009 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.test.performance.ui;

import org.eclipse.core.runtime.Plugin;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.ui.preferences.ScopedPreferenceStore;
import org.osgi.framework.BundleContext;

/**
 * The main plugin class to be used in the desktop.
 */
public class UiPlugin extends Plugin {
	//The shared instance.
	private static UiPlugin plugin;
	private IPreferenceStore preferenceStore;

	/**
	 * The constructor.
	 */
	public UiPlugin() {
		super();
		if (plugin == null) {
			plugin = this;
		}
	}

	/**
	 * This method is called upon plug-in activation
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);
	}

	/**
	 * This method is called when the plug-in is stopped
	 */
	public void stop(BundleContext context) throws Exception {
		super.stop(context);
		plugin = null;
	}

	/**
	 * Returns the shared instance.
	 */
	public static UiPlugin getDefault() {
		return plugin;
	}

	public IPreferenceStore getPreferenceStore() {
		if (this.preferenceStore == null) {
			this.preferenceStore = new ScopedPreferenceStore(new InstanceScope(), getBundle().getSymbolicName());

		}
		return this.preferenceStore;
	}

}