/*

 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description: 

 *

 */

package com.nokia.carbide.cpp.internal.pi.wizards.ui.util;

import java.util.ArrayList;

import java.util.Iterator;

import org.eclipse.core.resources.IProject;

import org.eclipse.core.resources.ResourcesPlugin;

import com.nokia.carbide.cdt.builder.project.ICarbideBuildConfiguration;

// keep the tree like a content provider because we have a branch of specialized node

// of workspace tree , tree access using content provider give us an edge of constitent 

// interface for walking the tree

public class PkgListTree {

	private ArrayList<Object> root = new ArrayList<Object>();

	public PkgListTree() {

		setupWorkspaceRoot();

	}

	private void setupWorkspaceRoot() {

		root.add(ResourcesPlugin.getWorkspace().getRoot());

	}

	public Object[] getRoot() {

		return root.toArray();

	}

	public void removeAllPkgEntries() {

		root.clear();

		setupWorkspaceRoot();

	}

	public void addPkgEntry (IPkgEntry entry) {

		root.add(entry);

	}

	public void removePkgEntry (IPkgEntry entry) {

		root.remove(entry);

	}

	public IPkgEntry[] getPkgEntries () {

		ArrayList<IPkgEntry> pkgEntryArrayList = new ArrayList<IPkgEntry>();

		Iterator<Object> rootItr = root.iterator();

		while(rootItr.hasNext()) {

			Object current = rootItr.next();

			if (current instanceof IPkgEntry) {

				pkgEntryArrayList.add((IPkgEntry) current);

			}

		}

		return pkgEntryArrayList.toArray(new IPkgEntry[pkgEntryArrayList.size()]);

	}

	public void dispose() {

		root.clear();

	}

	public static boolean isBuildConfigurationItem(Object element) {

		if (element instanceof ICarbideBuildConfiguration)

			return true;

		return false;

	}

	public static boolean isFileItem(Object element) {

		if (element instanceof IPkgEntry)

			return true;

		return false;

	}

	public static boolean isProjectItem(Object element) {

		if (element instanceof IProject)

			return true;

		return false;

	}

}