/*

* 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 "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.s60tools.traceanalyser.ui.editors;

import org.eclipse.jface.viewers.Viewer;

import com.nokia.s60tools.traceanalyser.export.RuleEvent;

import com.nokia.s60tools.traceanalyser.export.RuleEvent.RuleStatus;

import com.nokia.s60tools.ui.S60ToolsViewerSorter;

/**

 * class HistoryTableDataSorter  

 * Data sorter for Trace Analyser's history view.

 */

public class HistoryTableDataSorter extends S60ToolsViewerSorter {

	/**

	 * Numbers of columns that can be sorted.

	 */

	public static final int STATUS = 1;

	public static final int TIME = 2;

	public static final int VALUE = 3;

	public static final int VIOLATION = 4;

	public HistoryTableDataSorter() {

		super();		

		// By default set sort criteria to time

		setSortCriteria(TIME);

	}

	/* (non-Javadoc)

	 * @see org.eclipse.jface.viewers.ViewerSorter#compare(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)

	 */

	public int compare(Viewer viewer, Object e1, Object e2) {

		// By default comparison does not do any ordering

		int comparisonResult = 0;

		RuleEvent f1 = (RuleEvent) e1;

		RuleEvent f2 = (RuleEvent) e2;

		switch (sortCriteria) {

		case STATUS:

			if(f1.getStatus() == f2.getStatus()){

				comparisonResult = 0;

			}

			else if(f1.getStatus() == RuleStatus.FAIL){

				comparisonResult = 1;

			}

			else{

				comparisonResult = -1;

			}

			break;

		case -1:

		case TIME:

			if(f1.getTime().before(f2.getTime())){

				comparisonResult = 1;

			}

			else{

				comparisonResult = -1;

			}

			break;

		case VALUE:

			if(f1.getValue() < f2.getValue()){

				comparisonResult = 1;

			}

			else{

				comparisonResult = -1;

			}

			break;

		case VIOLATION:

			if(f1.getViolation() >  f2.getViolation()){

				comparisonResult = 1;

			}

			else{

				comparisonResult = -1;

			}

			break;

		default:

			break;

		}

		return comparisonResult;

	}

}